ORGANIZER Vrnjaşka Banja, Serbia

Vrnjaka Banja, Serbia
11 th INTERNATIONAL CONFERENCE
RESEARCH AND DEVELOPMENT IN
MECHANICAL INDUSTRY
RaDMI 2011
PROCEEDINGS
Vol. 2
Editor:
Predrag V. Daši
Sokobanja, Serbia
15 - 18. September 2011.

Publisher:
SaTCIP (Scientific and Technical Center for Intellectual Property) Ltd.,
36210 Vrnjaka Banja, Serbia
For publisher: Jovan Daši, Director of the firm SaTCIP Ltd.
Reviewers:
Prof. dr. Branislav Dragovi, vice-dean, Maritime Faculty, University of
Montenegro, Kotor (Montenegro)
Prof. dr Sergey Kovalevskyy, vice-rector, Donbass State Machinery Academy
(DSMA), Kramatorsk (Ukraine)
Prof. dr Raycho Ilarionov, vice-rector, Technical University of Gabrovo
(Bulgaria)
Technical processing and design: Predrag Daši
Jovan Daši
Sanja ali
Approved by:
Decision no. 015/2011 from 01-06-2011 from SaTCIP Ltd., Vrnjaka Banja (Serbia)
Disclaimer Note
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of potential users. Opinions expressed by the Autors are not necessarily in accordance with SaTCIP Ltd. as
the Publisher, and the organizer and editor are not responsible for any statement in this publication.
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Circulation: 80 exemplars
Printed by:
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36210 Vrnjaka Banja, Serbia
II

ORGANIZER
Vrnjaka Banja, Serbia
http://www.satcip.com/
ORGANIZING COMMITTEE
1. Predrag Daši, SaTCIP Ltd., Vrnjaka Banja (Serbia), Chairman
2. Dr Milutin Milosavljevi, University of Priština – Office Kosovska Mitrovica, Technical
Faculty, Kosovska Mitrovica (Serbia)
3. Marina Stanojevi, University of Niš, Faculty of Economics, Niš (Serbia)
4. Dr Slobodan Radosavljevi, Mining Basin Kolubara, Lazarevac (Serbia)
5. Veis Šerifi, Technical Faculty, aak (Serbia)
6. Jovan Daši, SaTCIP Ltd., Vrnjaka Banja (Serbia)
7. Danka Milievi, SaTCIP Ltd., Vrnjaka Banja (Serbia)
8. Sanja ali, SaTCIP Ltd., Vrnjaka Banja (Serbia)
III

SCIENTIFIC COMMITTEE
1. Prof. dr Grigoryev Sergey Nikolaevich, rector, Moscow State Technological University STANKIN,
Moskva (Russia), Chairman
2. Prof. dr Valentin Nedeff, rector, University of Bacu, Faculty of Engineering, Bacu (Romania), Vicechairman
3. Prof. dr Friedrich Franek, University of Vienna and president of Austrian Tribology Association, Vienna
(Austria), Vice-chairman
4. Prof. dr Raycho Ilarionov, vice-rector, Technical University of Gabrovo (Bulgaria), Vice-chairman
5. Dr Syed Ahmed, CSEM S. A., Surface Engineering Division, Neuchâtel (Switzerland)
6. Prof. dr Emilia Assenova, Technical University of Sofia, Sofia (Bulgaria)
7. Prof. dr Anatoly P. Avdeenko, Donbass State Machinery Academy, Kramatorsk (Ukraine)
8. Prof. dr Milun Babi, University of Kragujevac, Faculty of Mechanical Engineering, Kragujevac (Serbia)
9. Prof. dr Nada Barac, University of Niš, Faculty of Economics, Niš (Serbia)
10. Prof. dr Rade Bioanin, University of Novi Pazar, Technical Faculty, Novi Pazar (Serbia)
11. Prof. dr Leonid Borisenko, Belarusian-Russian University (BRU), Mogilev (Belarus)
12. Prof. dr Konstantin D. Bouzakis, Aristoteles University of Thessaloniki, Faculty of Mechanical
Engineering, Thessaloniki (Greece)
13. Prof. dr Miodrag Bulatovi, University of Podgorica, Faculty of Mechanical Engineering, Podgorica
(Montenegro)
14. Prof. dr Traian Buido, University of Oradea, Faculty of Management and Technological Engineering,
Oradea (Romania)
15. Prof. dr Mikhail V. Burmistr, academician, rector, Ukrainian State University of Chemical Engineering,
Dniepropetrovsk (Ukraine)
16. Prof. dr Alexander I. Burya, academician, Dniepropetrovsk State Agrarian University, Dniepropetrovsk
(Ukraine)
17. Prof. dr Ilija osi, dean, University of Novi Sad, Faculty of Technical Scientific, Novi Sad (Serbia)
18. Prof. dr Predrag osi, University of Zagreb, Faculty of Mechanical Engineering Naval Architecture,
Zagreb (Croatia)
19. Prof. dr George Dobre, University Politehnica, Bucharest (Romania)
20. Prof. dr Alexandre Dolgui, Ecole Nationale Supérieure des Mines de Saint-Etienne, Saint-Etienne (France)
21. Prof. dr emal Dolianin, rector, University of Novi Pazar, Technical Faculty, Novi Pazar (Serbia)
22. Prof. dr. Branislav Dragovi, vice-dean, Maritime Faculty, University of Montenegro, Kotor (Montenegro)
23. Prof. dr Ljuben Dudesku, vice-dean, University of Skopje, Faculty of Mechanical Engineering, Skopje
(Macedonia)
24. Prof. dr Petru Dusa, Technical University Gh. Asachi, Faculty of Mechanics, Iai (Romania)
25. Prof. dr Ljubodrag orevi, College of Applied Mechanical Engineering, Trstenik (Serbia)
26. Prof. dr Vladan orevi, academician, University of Belgrade, Faculty of Mechanical Engineering,
Belgrade (Serbia)
27. Prof. dr Sabahudin Ekinovi, rector, University of Zenica, Faculty of Mechanical Engineering, Zenica
(Bosnia and Herzegovina)
28. Prof. dr Volodymir Fedorinov, rector, Donbass State Machinery Academy, Kramatorsk (Ukraine)
29. Prof. dr Milomir Gaši, University of Kragujevac, Faculty of Mechanical Engineering, Kraljevo (Serbia)
30. Prof. dr Manfred Geiger, University Erlangen-Nuremberg, Erlangen (Germany)
31. Prof. dr Anatoly Ivanovich Grabchenko, National Technical University, Kharkov Polytechnical Institute,
Kharkov (Ukraine)
32. Prof. dr Nicolae Valentin Ivan, University Transilvania of Brasov, Faculty of Mechanical Engineering,
Brasov (Romania)
33. Prof. dr Isak Karabegovi, dean, University of Biha, Technical Faculty, Biha (Bosnia and Herzegovina)
34. Prof. dr Baki Karami, Erciyes University, Faculty of Mechanical Engineering, Kaysei (Turkey)
35. Prof. dr Branko Katalini, University of Vienna, Vienna (Austria)
36. Prof. dr Veijo Kauppinen, Helsinki University of Technology, Espoo (Finland)
IV

37. Prof. dr Marianna Kazimierska - Grebosz, Technical University of Lodz, Faculty of General Mechanics,
Lodz (Poland)
38. Dr Sergei A. Klimenko, Director of Association of Mashine – Bulding Technologists of the Ukraine -
ATMU, Kiev (Ukraine)
39. Prof. dr Karel Kocman, Technical University of Brno, Brno (Szech Republic)
40. Prof. dr Janez Kopac, University of Ljubljana, Faculty of Mechanical Engineering, Ljubljana (Slovenia)
41. Prof. dr Marian Kralik, vice-dean, Slovak University of Technology, Faculty of Mechanical Engineering,
Bratislava (Slovakia)
42. Prof. dr Zdravko Krivokapi, vice-dean, University of Podgorica, Faculty of Mechanical Engineering,
Podgorica (Montenegro)
43. Prof. dr Janos Kundrak, University of Miskolc, Faculty of Production Engineering, Miskolc, (Hungary)
44. Prof. dr Cristian N. Madu, Pace University, Lubin School of Bussiness, New York (USA)
45. Prof. dr Velibor Marinkovi, University of Niš, Faculty of Mechanical Engineering, Niš (Serbia)
46. Prof. dr Vlatko Maruši, University of Osijek, Mechanical Engineering Faculty, Slavonski Brod (Croatia)
47. Prof. dr Ostoja Mileti, vice-rector, University of Banja Luka, Faculty of Mechanical Engineering, Banja
Luka (Bosnia and Herzegovina)
48. Prof. dr Onisifor Olaru, dean, University Constantin Brancusi of Tg-Jiu, Faculty of Engineering, Tg-Jiu
(Romania)
49. Prof dr Constantin Oprean, rector, Lucian Blaga University of Sibiu, Sibiu (Romania)
50. Prof. dr Liviu Palaghian, vice-dean, University of Galati, Galati (Romania)
51. Prof. dr. Nam Kyu Park, Tongmyong University, Busan (Korea)
52. Prof. dr Jozef Peterka, vice-dean, Slovak University of Technology, Faculty of Material Sciences and
Technology of Trnava, Trnava (Slovakia)
53. Prof. dr Narcisa Popescu, University Politehnica, Bucharest (Romania)
54. Prof. dr Stanislaw Pytko, Technical University of Krakow, Krakow (Poland)
55. Prof. dr Snežana Radonji, vice-dean, University of Kragujevac, Technical Faculty, aak (Serbia)
56. Prof. dr Miroslav Radovanovi, University of Niš, Faculty of Mechanical Engineering, Niš (Serbia)
57. Prof. dr Georgi Rashev, dean, Technical University of Gabrovo, Faculty of Mechanical Engineering,
Gabrovo (Bulgaria)
58. Prof. dr. Dong-Keun Ryoo, College of International Studies, Korea Maritime University, Busan (Korea)
59. Prof. dr Igor Sergeevich Sazonov, rector, Belarusian-Russian University (BRU), Mogilev (Belarus)
60. Prof. dr Adolfo Senatore, University of Salermo, Faculty of Mechanical Engineering, Fisciano (Italy)
61. Prof. dr Dimitri Yu. Skubov, State Technical University of Sankt Petersburg, Sankt Petersburg (Russia)
62. Prof. dr Georgy Slynko, academician, Zaporozhye National Engineering University, Zaporozhye (Ukraine)
63. Prof. dr Mirko Sokovi, vice-dean, University of Ljubljana, Faculty of Mechanical Engineering, Ljubljana
(Slovenia)
64. Prof. dr Viktor Starkov, Moscow State Technological University, Moscow (Russia)
65. Prof. dr Ljubodrag Tanovi, University of Belgrade, Faculty of Mechanical Engineering, Belgrade (Serbia)
66. Prof. dr Oleg Vasilevich Taratynov, academician, Moscow State Industrial University, Moscow (Russia)
67. Prof dr Mihail Titu, Lucian Blaga University of Sibiu, director of Intellectual Property Department, Sibiu
(Romania)
68. Prof. dr Mirela Toth-Tascau, Politehnica University of Timioara, Faculty of Mechanical Engineering,
Timioara (Romania)
69. Prof. dr Nikolaos Vaxevanidis, Institute of Pedagogical & Technological Education, N. Heraklion Attikis
(Greece)
70. Prof. dr Karol Velisek, Slovak University of Technology, Faculty of Material Sciences and Technology of
Trnava, Trnava (Slovakia)
71. Prof. dr Nataliya Vodolazskaya, vice-dean, Donetsk National Technical University (DNTU), Donetsk
(Ukraine)
72. Prof. dr Edward Walicki, University of Zielona Gora, Faculty of Mechanics, Zielona Gora (Poland)
73. Prof. dr Ton vad der Wiele, Erasmus University, Rotterdam School of Management, Rotterdam
(Netherlands)
74. Prof. dr Carol Zoller, University of Petrosani, Faculty for Mechanical and Electrical Engineers, Petrosani
(Romania)
75. Prof. dr Dragan Živkovi, High Technical School, Zrenjanin (Serbia)
V

P R E F A C E
The First Conference Research and Development in Chemical and Mechanical Industry - RaDMI
2001 was held upon the initiative of Predrag Daši and prof. dr Miroslav Radovanovi in Kruševac
from October 22-24, 2001.
Until now, 9 conferences were realized. The conference accepted and published over 1.700 papers,
from which 1.200 were from abroad from 40 various countries of the world. Total number of authors
and coauthors is over 2.000. Papers of the 10th conferences were published in 18 proceedings in hard
copy and 9 proceedings in electronic form (CD-ROM). Amount of printed material was approximately
12.000 pages. Some papers from the 8th International conference RaDMI 2008 will be printed in
special issue of international journal from SCI-E paper Strojniški Vestnik – Journal of Mechanical
Engineering Vol. 55, no. 2 (2009) (Web site: http://en.sv-jme.eu/).
Eleventh International Conference Research and Development in Mechanical Industry RaDMI 2011
will be held on 15–18th September 2011 in Sokobanja, Serbia.
Topics of the Conference RaDMI 2011 are:
Plenary Session: Invitation papers, with 12 papers
Session A: Research and development of manufacturing systems, tools and technologies, new
materials and production design, with 39 papers
Session B: Transport systems and logistics, with 8 papers
Session C: Application of information technologies in mechanical engineering, with 29 papers;
Session D: Quality management, ISO 9000, ISO 14000, TQM and management in mechanical
engineering, with 65 papers;
Session E: Application of mechanical engineering in other industrial fields, with 48 papers.
The aim of organizing the Conference is: animating scientists from the faculties and institutes and
experts from the industry and their connecting and collaboration, and exchanging the experiences and
knowledge of domestic and foreign scientists and experts.
On behalf of the organizers, we would like to extend our thanks to all organizations and institutions
that have supported the initiative to have this anniversary gathering organized. We would also like to
extend our thanks to all authors and participants from abroad and from the country for contribution to
this conference.
Sokobanja, September 2011.
CHAIRMAN OF ORGANIZING COMMITTEE
Predrag Daši, prof.
VII

C O N T E N T S
Volume 1
PLENARY SESSION (INVITATION PAPERS)
P-1.
P-2.
P-3.
P-4.
P-5.
P-6.
P-7.
P-8.
P-9.
P-10.
P-11.
P-12.
Fountas N.A., Vaxevanidis N.M. (Attikis – Greece)
IDENTIFICATION OF CAM PARAMETERS FOR THE OPTIMIZED ROUGH
MACHINING OF COMPLEX PARTS THROUGH DESIGN OF EXPERIMENTS
Kluka R., Sivera M. (Ostrava - Czech Republic), Senatore A. (Salerno, Italy)
MODAL ANALYSIS OF CENTRIFUGALLY TENSIONED AIRSCREW:
NUMERICAL SOLUTION AND TEST DESIGN
Bošnjak M.S., Petkovi D.Z., Dunji M.M., Gnjatovi B.N., orevi D.M.
(Belgrade – Serbia)
REDESIGN OF THE VITAL SUBSYSTEMS AS A WAY OF EXTENDING THE
BUCKET WHEEL EXCAVATORS LIFE
Zrni .N., orevi D.M. (Belgrade – Serbia), Jerman P.B. (Ljubljana – Slovenia),
Dragovi M.B. (Kotor – Montenegro), Gaši M.V. (Belgrade – Serbia)
ENERGY EFFICIENCY AND ENVIRONMENTALY FRIENDLY TECHNOLOGIES
IN BULK MATERIALS HANDLING: STATE OF THE ART
Nikezi S. (Kragujevac – Serbia), Markovi S. (Podgorica – Montenegro)
TRANSFORMATIONAL LEADERSHIP AS A FACTOR PROFOUND CHANGES
Daši P. (Vrnjaka Banja – Serbia)
ANALYSIS OF THE JOURNAL IMPACT FACTOR IN FIELD OF MECHANICAL
ENGINEERING
Maruši V., Rosandi Ž (Slavonski Brod – Croatia), Rozing G. (Osijek – Croatia)
ALUMINIUM BRONZE AS AN INSULATOR
Kegl B., Pehan S. (Maribor – Slovenia)
BIODIESEL INFLUENCE ON DIESEL ENGINE EMISSION
Karabegovi I. (Biha – Bosnia and Herzegovina), Doleek V. (Sarajevo – Bosnia
and Herzegovina), Husak E. (Biha – Bosnia and Herzegovina)
APPLICATION OF OPTOELECTRONIC SENSORS IN THE PROCESS INDUSTRY
Meštrovi R., Dragovi B. (Kotor – Montenegro)
AN ANALYSIS OF SPECIFIC COST RATIO IN A PORT: PART I
Barac N., Milovanovi G., Radenkovic-Jocic D. (Niš - Serbia)
THE USE OF RFID IN RETAIL MANAGEMENT
Jevti D., Zaki D., Savi A. (Belgrade – Serbia)
APPLICATION OF RECYCLED MATERIALS FOR PRODUCTION OF
SUSTAINABLE CEMENTITIOUS COMPOSITES
1
11
21
31
49
62
71
80
87
93
98
110
IX

SESSION A
RESEARCH AND DEVELOPMENT OF MANUFACTURING SYSTEMS,
TOOLS AND TECHNOLOGIES, NEW MATERIALS AND
PRODUCTION DESIGN
A-1. Avdeenko A.P., Konovalova S.A., Avdeenko E.A. (Kramatorsk – Ukraine)
CUTTING COOLANT FOR METAL EDGE CUTTING MACHINING
A-2. Barzev I.., Todorov H.V. (Gabrovo – Bulgaria)
PLASMA WELDING OF STATOR SETS FOR ASYNCHRONOUS ELECTRIC
MOTOR
A-3. Bran I., Li M., Locovei C., Rou R.A., Popescu M., Opri C. (Timioara –
Romania)
EVALUATION OF HYDROXYAPATITE BIOCOMPATIBILITY COATINGS
DEPOSITED BY HVOF METHOD
A-4. Bria V., Ungureanu V., Roman I., Cîrciumaru A., Bîrsan I.-G. (Galai – Romania)
A MECHANICAL ANALYSIS OF FABRIC REINFORCED PLIES
A-5. amagi I., Vasi N., Cvetkovi S. (Kosovska Mitrovica – Serbia), Burzi Z., Todi
A. (Belgrade – Serbia)
BEHAVIOR ASSESSMENT OF HIGH-STRENGTH LOW-ALLOYED STEEL
EXPOSED TO TENSILE AND VARIABLE LOAD
A-6. uki M., Tomi R., Peci Lj. (Trstenik – Serbia)
THE IMPROVEMENT OF TECHNICAL SOLUTION OF MOBILE COOLING
DEVICE REGARDING TO EXCHANGING STIFFNESS SUPPORTS OF
PROPULSION SYSTEM
A-7. Eri O., Atanasovska I., Momilovi D., Dojinovi M. (Belgrade – Serbia)
ADI MATERIAL FOR GEARS WITH HIGH CONTACT STRESSES
A-8. Eri-Obuina J. (Trstenik – Serbia), Obuina S.V. (Kraljevo – Serbia)
NOISE AND VIBRATIONS IN HYDRAULIC STEERING SYSTEMS ON MOTORS
VEHICLES
A-9. Gaši M., Savkovi M., Markovi G., Zdravkovi N. (Kraljevo – Serbia)
ANALYSIS OF CARRYING STRUCTURE INFLUENTIAL PARAMETERS ON
BOND FUNCTION OF REVOLVING AND NON - REVOLVING PARTS
A-10. Gavrish .A., Tulupov V.I. (Kramatorsk – Ukraine)
PERFECTION OF THE THERMAL CYCLE OF COPPER WITH STEEL WELDING
A-11. Georgescu C., Deleanu L. (Galai – Romania)
INFLUENCE OF THE SLIDING DISTANCE FOR PBT-STEEL DRY CONTACT
A-12. Hristov G.H. (Gabrovo – Bulgaria), Wassilkowska V.A. (Cracow - Poland)
CRYSTALLIZATION BEHAVIOUR OF WIDMANSTÄTTEN FERRITE IN PLANE
CARBON STEELS
A-13. Kegl B., Pehan S., Kegl M. (Maribor – Slovenia)
OPTIMAL DESIGN OF DIESEL FUEL INJECTION SYSTEM BY CONSIDERING
FUEL SPRAY CHARACTERISTICS
A-14. Kegl T. (Maribor – Slovenia)
OPTIMAL DESIGN OF A ROOF USING BIOMIMETICS
A-15. Kegl T. (Maribor – Slovenia)
STIRLING ENGINE
A-16. Kovalevskyy S., Avdeenko A., Kovalevska O., Tulupov V., Starodubcev I.
(Kramatorsk – Ukraine)
RESEARCH OF TECHNOLOGICAL POSSIBILITIES OF THE COMBINED
PRESSING IS ON STRENGTHENING AND QUALITY OF SURFACE OF DETAILS
OF MACHINES
A-17. Kovalevskyy S., Kovalevska O., Fedyuk T., Starodubcev I. (Kramatorsk – Ukraine)
RESEARCH OF TECHNOLOGICAL POSSIBILITIES OF MANAGEMENT OF
TECHNOLOGICAL SYSTEM DYNAMIC DESCRIPTIONS
123
127
132
138
145
151
156
162
167
174
179
186
192
203
211
219
224
X

A-18.
A-19.
A-20.
A-21.
A-22.
A-23.
A-24.
A-25.
A-26.
A-27.
A-28.
A-29.
A-30.
Kovalevskyy S., Kovalevska O., Kostina A. (Kramatorsk – Ukraine)
PERFECTION OF NON-DESTRUCTIVE METHODS OF CONTROL OF SURFACES
OF DETAILS OF MACHINES
Kovalevskyy S., Kovalevska O., Pridvorov A. (Kramatorsk – Ukraine)
MATHEMATICAL MODEL FOR DETERMINATION OF OPTIMAL MODES OF
TREATMENT AT ELECTRO-IMPULSIVE PRESSING
Kumar S., Pradhan D., Kumar Arora P. (Ghaziabad – India), Kumar H. (New
Delhi – India)
ENVIRONMENTAL EFFECTS ON FATIGUE BEHAVIOR OF MILD STEEL: AN
EXPERIMENTAL STUDY
Mihalcea S. (Piteti – Romania)
KINEMATIC SIMULATION FOR A MECHANICAL TIMING MECHANISM WITH
CONTINUOUS VARIABLE VALVE LIFT
Mihaylov I., Angelov K., Hadzhiyski V. (Plovdiv – Bulgaria)
KINEMATIC ANALYSIS OF A SPIRAL FEEDING MECHANISM
Nencheva M.D. (Gabrovo – Bulgaria)
EFFECT OF SELF - BLOCKING INVOLUTE CYLINDRICAL GEARS WITH
ASYMMETRIC PROFILES AND EXTERNAL ENGAGEMENT
Panteli P.M. (aak – Serbia), Bošnjak M.S., Petkovi D.Z. (Belgrade – Serbia)
EXCAVATION UNITS (RE)DESIGNING FOR MAINTENANCE
Peterka J., Zvonan M. (Trnava – Slovakia)
VOLUMETRIC METHOD OF EDGECHIPPING RATE EVALUATION IN ROTARY
ULTRASONIC MACHINING OF SILICA GLASS
Podaru G., Ciortan S., Spanu C. (Galati – Romania)
OPTICAL 3D RECONSTRUCTION AS INVESTIGATION METHOD
OF WEAR IN PLASTOMER-ELASTOMER COUPLES
Radosavljevi S. (Lazarevac - Serbia), Daši P. (Vrnjaka Banja – Serbia),
Radosavljevi M. (Lazarevac – Serbia)
MAINTENANCE PROCESS REENGINEERING THERMAL POWER PLANT
Radosavljevi S. (Lazarevac - Serbia), Daši P. (Vrnjaka Banja – Serbia),
Radosavljevi M. (Lazarevac – Serbia)
DEVELOPMENT OF POWER PLANT MAINTENANCE
Roganov L.L., Popivnenko L.V., Rudenko N.A. (Kramatorsk – Ukraine)
NEW TECHNOLOGY IMPROVING THE SERVICE CHARACTERISTICS OF
SINTERED SELF-LUBRICATION BEARINGS WITH CONTROLLABLE PORE
SIZE
Roganov M.L., Roganov L.L, Abramova L.N. (Kramatorsk – Ukraine)
GRINDING OF COMPLEX SURFACES OF MECHANICAL ENGINEERING
PRODUCTS BY MEANS OF HYDRO MONITORS WITH ABRASIVE INCLUSIONS
A-31. Roman I., Bria V., Ungureanu V., Cîrciumaru A., Bîrsan I.-G. (Galai – Romania)
PHYSICAL PROPERTIES OF STARCH FILLED EPOXY COMPOSITES
A-32. Rou R.A., Pascu D.R., Popescu M., Drgoi S. (Timioara – Romania)
REALIZATION OF HETEROGENEOUS JOINTS BY CMT PROCESS
A-33. Spasojevi D., Spasojevi S. (Belgrade – Serbia), Damjanovic M. (Novi Sad –
Serbia)
THE SPECIFIC FEATURES OF EQUIPMENT FOR ADI MATERIAL PRODUCTION
– ENVIRONMENTAL VIEW
A-34.
A-35.
A-36.
Todorov H. (Gabrovo – Bulgaria)
FINISH PROCESSING OF TITANIUM TUBE HOLES BY ROTARY HOLLOW
DRAWING
Todorovi D., Tomi R., Blagojevic M., Veselinovi Z. (Trstenik – Serbia)
CONDITIONS AND DEVELOPMENT TENDENCIES OF THE GEAR PUMPS
Toncu G. (Bucharest – Romania), Preda I. (Constanta – Romania)
ON SOME POSSIBILITIES TO CONTROL FLYING MACHINES
230
236
242
246
256
262
265
272
279
284
294
303
309
312
319
327
332
337
344
XI

A-37. Ungureanu V., Roman I., Bria V., Cîrciumaru A., Bîrsan I.-G. (Galai – Romania)
A QUALITATIVE STUDY OF FALIURE MECHANISMS FOR FABRIC
REINFORCED LAMINAE
A-38. Vasylchenko Y.V., Kovalov V.D. (Kramatorsk – Ukraine)
STATISTICAL RESEARCHES OF WORK OF THE ENTERPRISES OF HEAVY
MECHANICAL ENGINEERING FOR A SUBSTANTIATION OF TECHNICAL
CHARACTERISTICS OF NEW MACHINE TOOLS
A-39. Zoller C. (Petrosani – Romania), Daši P. (Vrnjaka Banja - Serbia), Costinas S.
(Bucharest – Romania), Dobra R. (Petrosani – Romania)
PREDICTIVE WIND POWER PLANT CONDITION MONITORING
353
359
365
SESSION B
TRANSPORT SYSTEMS AND LOGISTICS
B-1. Dimitrijevi S.B., Nikoli Lj.M., Vukievi P.I., Simi D. V. (Belgrade – Serbia)
LOCATION MODEL FOR ONE CLASS OF UNDESIRABLE FACILITIES
B-2. Dragovi B., Meštrovi R. (Kotor – Montenegro)
AN ANALYSIS OF SPECIFIC COST RATIO IN A PORT: PART II
B-3. Lui P.J., Zrni D.N. (Belgrade – Serbia)
ENERGY EFFICIENCY IMPROVEMENT THROUGH IMPLEMENTATION OF
ALTERNATIVE DRIVE SYSTEMS IN FORKLIFT MARKET
B-4. Radmilovi Z., Maraš V., Paškovi K. (Belgrade – Serbia)
BOATING AND CANAL NAVIGATION AS CLIMATE-FRIENDLY TRANSPORT
B-5. Škuri M., Dragovi B., Markolovi T., orovi B. (Kotor – Montenegro)
PORT OF BAR CONCEPTION AND DEVELOPMENT
B-6. Škuri M., Dragovi B., Meštrovi R. (Kotor – Montenegro), Zrni N. (Belgrade –
Serbia)
AN ESTIMATION OF CONTAINER YARD PERFORMANCE
B-7. Urdea G.B., Popescu F.D. (Petroani – Romania)
SYSTEMIC ANALYSIS OF TRANSPORT AT VULCAN MINING PLANT
B-8. Zrni N., Rajkovi M. (Belgrade – Serbia)
DOES INTRALOGISTICS SECTOR CARE ABOUT ENVIRONMENT:
SUSTAINABILITY AND ENERGY EFFICIENCY IN WAREHOUSING
375
382
386
392
396
401
407
414
C-1.
C-2.
C-3.
C-4.
SESSION C
APPLICATION OF INFORMATION TECHNOLOGIES IN
MECHANICAL ENGINEERING
Aleksandrov S., ajetinac S. (Trstenik – Serbia), Zoran Jovanovi Z. (Niš – Serbia)
INTERNET ACCESS TO PLC WITH INTEGRATED WEB SERVER
Alipiev D. (Sofia – Bulgaria)
AN EDUCATIONAL COMPUTER PROGRAM FOR DETERMINATION OF
HYDROGEN CONTENT IN MOLTEN AL-SI ALLOYS
Atanasovska I., Momilovi D., Eri O. (Belgrade – Serbia)
RATE INDEPENDENT PLASTICITY - A MATERIAL NONLINEARITY IN FINITE
ELEMENT ANALYSIS
Bošnjak M.S., Petkovi D.Z., Mihajlovi M.V., Milojevi Z.G., Milenovi Lj.I.
(Belgrade – Serbia)
CAD OF THE SPECIAL CAR LIFTING DEVICE
425
431
435
444
XII

C-5. Bošnjak M.S., Petkovi D.Z., Simonovi M.A., Milovanevi .M., Milenovi Lj.I.
(Belgrade – Serbia)
STRUCTURAL AND CONTACT STRENGTH OF THE REVOLVING DRYER
C-6. Ciortan S., Podaru G., Birsan I.G. (Galati – Romania)
NEURAL NETWORK BASED ANALYSIS OF FRICTION COEFFICIENT
EVOLUTION IN STUFFING BOX SEALS
C-7. ajetinac S., Todorovi M., Aleksandrov S. (Trstenik – Serbia), Novakovi M.
(Belgrade – Serbia)
MODELLING AND SIMULATION OF PNEUMATIC ACTUATOR
C-8. Damnjanovi Z., Štrbac N., Pantovi R. (Bor – Serbia), Stojkovi Z. (Zajear –
Serbia)
NUMERICAL METHODS IN TERMAL TESTING OF BUILDING MATERIALS
USING IR THERMOGRAPHY
C-9. Damnjanovi Z., Štrbac N. (Bor – Serbia), Velimirovi N. (Niš – Serbia),
Mladenovi-Ranisavljevi I. (Leskovac – Serbia)
AN ALGORITHMS FOR IR THERMOGRAMS FOR DIAGNOSTICS A OBJECTS
C-10. Deni B.D., Miljkovi S.G., Luki R.J., Simi M.M. (Niš - Serbia)
SERIAL CODE READING CORRECTNESS DETECTION APPLIED TO
PSEUDORANDOM ABSOLUTE ENCODERS
C-11. Eri M.D. (aak - Serbia), Mandi V. (Kragujevac - Serbia), Markovi S. (aak -
Serbia)
INTEGRATED SYSTEMS IN THE DEVELOPMENT OF CONCEPT OF
CONCURRENT ENGINEERING
C-12. Eri-Obuina J., Todorovi M., ajetinac S., Jevremovi V. (Trstenik – Serbia)
KINEMATIC ANALYSIS AND ANIMATION OF MOTION OF THE MECHANISM
CONSISTING OF ROD AND SLIDER
C-13. Gorbach E.V., Sereda V.G., Palamarchuk V.A. (Kramatorsk – Ukraine)
RESEARCH AND PERFECTION OF TECHNOLOGICAL PROCESS OF
TANGENTIAL ROLLING OF PIPES BY FRICTION TOOL
C-14. Gospodinov D., Hadjiiski V., Stefanov S. (Plovdiv – Bulgaria)
USING OF THE FINITE ELEMENT METHOD FOR STUDYING THE EFFECT OF
THE BASIC GEOMETRIC PARAMETERS OF THE CORRUGATED PAPERBOARD
OVER ITS COMPLEX MECHANICAL PROPERTIES
C-15. Hladnik J., Resman F., Jerman B. (Ljubljana – Slovenia)
FINITE ELEMENTANALYSIS OF CROSS-COUNTRY SKIING BOOT TORSION
STIFFNESS
C-16. Kazimierska-Grebosz M. (Lodz – Poland)
THE RESEARCH OF ACOUSTIC SCREENS IN ANECHOIC ROOM AND IN REAL
C-17.
CONDITIONS
Kegl M., Harl B. (Maribor – Slovenia)
TOPOLOGY OPTIMIZATION USING DESIGN ELEMENTS AND A LEVEL SET
FUNCTION
C-18. Litovchenko I., Shpak M. (Kyiv – Ukraine), Stefanov S., Hadjiiski W. (Plovdiv –
Bulgaria)
MIXER`S DESIGN METHOD WITH COMPUTER MODELING
C-19.
C-20.
C-21.
Mikhov M.R. (Sofia – Bulgaria)
PERFORMANCE ANALYSIS OF A BRUSHLESS DC MOTOR DRIVE FOR
MECHANICAL INDUSTRY
Milievi I., Boškovi N., Slavkovi R., Golubovi D., Dui N. (Cacak – Serbia)
DESIGN AND SIMULATION OF AUTOMATION CONTROL SYSTEM FOR
MECHATRONIC SYSTEM PROTOTYPE FOR PRODUCTION OF WIRED
PROFILES WEDGE SHAPED
Morovi L., Peterka J., Ková M. (Trnava – Slovakia)
DIGITIZATION OF BALL NOSE END MILLS BY OPTICAL 3D SCANNER
450
456
460
465
472
481
489
494
499
507
513
520
526
533
539
545
550
XIII

C-22.
C-23.
C-24.
C-25.
C-26.
C-27.
C-28.
C-29.
Nikoli Z. (Trstenik - Serbia), Bujoševi V. (Belgrade - Serbia), Daši P. (Vrnjaka
Banja – Serbia)
INFORMATION MODELLING OF PRODUCTION – INVESTMENT BUILDING
USING IDEF METHOD
Nikoli Z. (Trstenik - Serbia), Radovanovi M. (Belgrade - Serbia)
FUNCTIONAL MODELLING OF LIBRARY INFORMATION SYSTEM USING
IDEF METHODS
Novakovi M. (Belgrade - Serbia), ajetinac S., Mijatovi M. (Trstenik - Serbia)
EXPERIMENTAL TESTING RESULTS AND DISCRETE DYNAMIC MODEL
DETERMINATION OF ONE ELECTRONICALLY CONTROLED HYDROSTATIC
TRANSMISSION
Radovanovi M. (Belgrade - Serbia), Nikoli Z. (Trstenik - Serbia)
INFORMATION MODELLING OF LIBRARY INFORMATION SYSTEM BY IDEF
METHOD
Vreki S. (Kragujevac – Serbia)
INTEGRATION OF 3D CAD DESIGN STRUCTURE OF VEHICLE PARTS TO
INCREASED PASSIVE SAFETY VEHICLE
Yordanov S.Y., Ivanova N.I. (Gabrovo – Bulgaria)
OBJECTIVE-ORIENTATED LIBRARY FOR CODING OF THE TRANSMITTED
INFORMATION IN PUBLIC NETWORKS
Zhelezarova I.D., Rashev E.G. (Gabrovo – Bulgaria)
FREQUENCY ANALYSIS OF INPUT SHAFT FROM THE REDUCER ABOUT
ROPE ELECTRIC HOIST
Živkovi T. (Vrnjaka Banja – Serbia), Cvetkovi Z., Jovanovi A. (Niš - Serbia)
LEGAL PROTECTION OF COMPUTER DATA SAFETY
556
561
572
576
584
589
595
600
Volume 2
D-1.
D-2.
D-3.
D-4.
D-5.
D-6.
SESSION D
QUALITY MANAGEMENT, ISO 9000, ISO 14000, TQM AND
MANAGEMENT IN MECHANICAL ENGINEERING
Andros V.S. (Kiev – Ukraine)
IMPACT OF GLOBALIZATION ON THE WORLD FINANCIAL MARKETS
Andjelkovi Peši M., Peši M. (Niš – Serbia)
THE SIX SIGMA WAY FOR PROCESS STRUCTURING
Avramovi M., Popovi S. (Leskovac – Serbia)
QUALITY MANAGEMENT IN EMPLOYEES RECREATION
Bejtovi S. (Novi Pazar – Serbia), Imamovi M., Bektaševi S. (Travnik – Bosnia
and Herzegovina)
HUMAN ECOLOGY IN THE QUALITY OF LIFE
Bioanin I. (Kruševac – Serbia), Cveji R. (Požarevac – Serbia)
ENERGY EFFICIENCY AND ENVIRONMENTAL PROTECTION
Bioanin R. (Novi Pazar – Serbia), Kalini Z. (Banja Luka – Bosnia and
Herzegovina), Radovi S. (Belgrade – Serbia)
MANAGEMENT OF NEW TECHNOLOGIES WITH ECONOMIC AND
ECOLOGICAL ASPECTS OF PRODUCTION
605
611
616
621
626
634
XIV

D-7. Boji B., Huseinovi A. (Sarajevo – Bosnia and Herzegovina)
VIEW OF FOREIGN TRADE OF BOSNIA AND HERZEGOVINA IN PERIOD 2003-
2010
D-8. Bojovi P., urin S. (Zrenjanin – Serbia)
SELECTED TURNOVER COEFFICIENTS, RATIOS AND OTHER INDICATORS IN
ROLE OF COMPANY FINANCIAL ANALYSIS IN PRODUCTION, INDUSTRIAL,
SERVICE AND OTHER ACTIVITIES
D-9. Bojovi P. (Zrenjanin – Serbia), Živkovi A. (Belgrade – Serbia)
SELECTED RATIO NUMBERS IN THE FUNCTION OF ANALYZING A
COMPANY OF MANUFACTURING, INDUSTRIAL, SERVICE AND OTHER
ACTIVITY
D-10. Boškovi S.G., Jankovi-Mili P.V., Anelkovi-Peši M.M. (Niš – Serbia)
POSSIBILITIES OF CUSUM CHART IMPLEMENTATION IN STATISTICAL
PROCESS CONTROL
D-11. Brankovi N. (Sombor – Serbia)
CONTRIBUTION OF WEB SITE TO SCHOOL ETOS
D-12. Chumicheva R. (Rostov - Russia), Shevchenko G. (Lugansk – Ukraine),
Kovalevskyy S., Kosheva L. (Kramatorsk – Ukraine)
MANAGEMENT PERSONNEL AND NEW PEDAGOGICAL TECHNOLOGIES FOR
ECONOMIC PRODUCTION SYSTEMS
D-13. osi Lj. (Sarajevo – Bosnia and Herzegovina), Radovanovi D., Cabo Z. (Istono
Sarajevo – Bosnia and Herzegovina), Sladoje M. (Sarajevo – Bosnia and
Herzegovina)
MANAGEMENT ACTIVITIES THROUGH THE INFLUENCE OF DIGITAL
MARKETING IN RECESSION
D-14. Dini M., Peci Lj., Jevti N. (Trstenik – Serbia)
REPORT OF 8D
D-15. uri M., uri S. (Kostolac – Serbia)
SIGNIFICANCE OF INTRODUCING BASEL II STANDARD AND ITS
MACROECONOMIC IMPACT ON SERBIA
D-16. Elezovi N. (Kosovska Mitrovica – Serbia), Šerifi S.V. (Vrnjaka Banja – Serbia),
Cveji R. (Požarevac – Serbia)
ANALYSIS OF WATER AND AIR QUALITY IN MITROVICA DISTRICT
D-17. Fedorinov V., Fesenko A., Kovalevskyy S. (Kramatorsk – Ukraine)
STAFFING TECHNOLOGY TRANSFER AS A BASIS FOR THE PRODUCTION OF
INNOVATION
D-18. Gerasymchuk H.V. (Kiev – Ukraine)
INDUSTRY DETERMINES ECONOMIC POTENTIAL OF THE STATE IN THE
CONDITIONS OF CIVILIZATION TRANSFORMATIONS
D-19. Gherghel S., Secan C. (Oradea – Romania)
ANALYSIS OF QUALITY – RISK CORELLATION IN ECONOMIC – INDUSTRIAL
PROCESSES
D-20. Grubi G. (Belgrade – Serbia), Ratkovi M. (Sremski Karlovci - Serbia), Janjuši
D. (Belgrade – Serbia)
BUSINESS IMPROVEMENT OF INDUSTRIAL PRODUCERS IN SERBIA USING
WEB TECHOLOGIES
D-21. Hamidovi Dž., Papi H., Tahirbegovi S. (Novi Pazar – Serbia), Bioanin J.
(Kruševac – Serbia)
ENVIRONMENTAL STANDARDS IN THE RESEARCH - DEVELOPMENT
PROJECTS AND SUSTAINABLE DEVELOPMENT
D-22. Ignjatovic S. (Pozarevac – Serbia)
ROLE OF BASEL COMMITTEE IN INTERNATIONAL HARMONIZATION OF
PRUDENTIAL REGULATION OF BANKS BUSINESS
639
647
653
663
668
675
680
684
692
698
706
709
719
723
731
741
XV

D-23. Karadži R. (Berane – Montenegro), Bulatovi M. (Podgorica – Montenegro),
Petkovi D. (Zenica – Bosnia and Herzegovina), Šabi M. (Sarajevo – Bosnia and
Herzegovina), Mirosavljevi P. (Belgrade – Serbia)
MODEL OF AIRCRAFT CONDITION BASED MAINTENANCE CONSIDERING
CAPABILITIES OF SMALL COUNTRIES
D-24. Kari D., Zeevi R., Labovi D. (Belgrade – Serbia)
ROLE AND IMPORTANCE OF INVESTMENT FUNDS IN MODERN MARKET
CONDITIONS
D-25. Kostadinovi S.D. (Belgrade – Serbia), Miljkovi V.M., Ilievska M. (Niš – Serbia)
ELEMENTS AND OBJECTIVES OF LIFELONG EDUCATION CONCEPT
D-26. Kostadinovi A.G., Dimitrijevi M. (Niš – Serbia), Joviši M. (Belgrade – Serbia)
BASIC FUNCTIONS OF LOGISTICS INFORMATION SYSTEMS
D-27. Malenovi-Nikoli R.J., Janakovi Lj. G. (Niš – Serbia), Ristovi M.I. (Belgrade –
Serbia)
GAUSSIAN MODEL FOR DETERMINING IMMISSION CONCENTRATIONS OF
SULPHUR DIOXIDE AND SELECTION OF MEASURING LOCATIONS FOR
THERMAL POWER PLANT MONITORING SYSTEM
D-28. Mandi-Dragi M. (Gradiška – Bosnia and Herzegovina)
EDUCATION OF MANAGERS IN BOSNIA AND HERZEGOVINA
D-29. Markovi N. (Novi Sad – Serbia), Stevi S. (Banja Luka – Bosnia and Herzegovina),
Cuze I. (Zagreb – Croatia)
IMPROVEMENTS AND INOVATIONS OF BUSINESS PROCESSES
REENGINEERING
D-30. Memet A. (Krusevac – Serbia), Milosavljevic M. (Kosovska Mitrovica – Serbia)
PROFITABILITY OF BUSINESS IN SERBIA
D-31. Milentijevi G., Nedeljkovi B. (Kosovska Mitrovica – Serbia)
MONITORING AND ANALYSIS OF HEAVY METALS IN RIVER IBAR IN THE
AREA OF LEPOSAVIC
D-32. Milic V., Ceperkovic J. (Vrnjaka Banja – Serbia)
INVESTMENT IN INNOVATION THROUGH APPLICATION OF MARKETING
MIX
D-33. Milic V., Ceperkovic J. (Vrnjaka Banja – Serbia)
RESEARCH AND DEVELOPMENT OF INNOVATIONS IN MECHANICAL
INDUSTRY FROM ASPECT OF MARKETING
D-34. Milosavljevi B., Panti R. (Trstenik – Serbia), Luki J. (Kragujevac – Serbia)),
Babi S. (Trstenik – Serbia)
AERODYNAMICS OF MOTOR VEHICLE AND EFFECTS ON FUEL ECONOMY
D-35. Momcilovic O., Rajakovic J., Mijailovi J. (Novi Sad – Serbia)
TYPES AND CHARACTERISTICS OF CHANGES
D-36. Momcilovic O., Rajakovic J., Rajakovi V. (Novi Sad – Serbia)
D-37.
D-38.
D-39.
D-40.
MANAGING ORGANIZATIONAL CULTURE
Mrgud V. (Banja Luka – Bosnia and Herzegovina), Popovi H. (Sarajevo – Bosnia
and Herzegovina), Mrgud R. (Foca – Bosnia and Herzegovina), Bukvi N.,
Todorovi B. (Sarajevo – Bosnia and Herzegovina)
MEDICAL WASTE MANAGEMENT ETHICAL AND LEGAL OBLIGATIONS
Nikoli R., Urosevi S., Fedajev A., Rizni D., Svrkota I. (Bor – Serbia)
METAL INDUSTRY OF TIMOK REGION IN TRANSITION PERIOD
Peci Lj., Luki S., Markovi D. (Trstenik – Serbia)
FMEA ANALYSIS - TAKEN SERIOUSLY IS THE SERIOUS ADVANTAGE ON
THE MARKET
Peci Lj., Tomi R., uki M. (Trstenik – Serbia)
TEAMWORK AS A PREREQUISITE FOR OPTIMAL RESPONSE TO MULTI-
CRITERIA REQUIREMENTS OF THE GKOBAL MARKET
748
755
764
769
775
781
785
790
806
816
821
825
834
839
845
851
855
864
XVI

D-41. Peci Lj., Tomi R., Dini M. (Trstenik – Serbia)
INTEGRAL QUALITY SYSTEM INTRODUCTION – PROJECT MANAGEMENT:
ATTACHMENT TO MODEL RESEARCH FOR THE CHOICE OF
INFORMATIONAL SYSTEM ACCORDING TO COMPANY PROFILE
D-42. Petrovi P., Vesi D. (Belgrade – Serbia)
THE STRATEGIC MANAGEMENT PATTERN CHANGES IN THE MECHANICAL
INDUSTRY
D-43. Risti O. (aak – Serbia), Mari A. (Kruševac – Serbia)
SIMULATION MODEL OF RELIABILITY AND MAINTENANCE COST
ANALYSIS
D-44. Rizni T.D. (Bor – Serbia), Raji T., Nikoli I. (Aranelovac – Serbia)
ECONOMIC REQUIREMENTS AND EDUCATIONAL PROCESS IN SERBIA
D-45. Rizni T.D. (Bor – Serbia), Vojnovi B. (Šabac – Serbia)
CONCEPT OF MARKETING QUALITY AND BRANDING IN THE FUNCTION OF
EFFICIENCY IN INDUSTRIAL MARKETING
D-46. Sakalosh V.T. (Kyiv – Ukraine)
COMPETITIVENESS FACTOR FOR INTERNATIONAL PRODUCTION
COOPERATION OF HOIST AND TRAVELLING EQUIPMENT
MANUFACTURERS
D-47. Skorobogatova N. (Kiev – Ukraine)
INVESTMENT POTENTIAL OF INDUSTRIAL ENTERPRISE IN THEORY OF
SUSTAINABLE DEVELOPMENT
D-48. Sofiu V. (Tetovo – Macedonia), Šerifi S.V. (Vrnjaka Banja – Serbia)
AN OVERVIEW OF DIRECT SOLAR IRRADIATION
D-49. Spai J. (Trebinje – Bosnia and Herzegovina), Pušara N., Živkovi S. (Belgrade –
Serbia)
AN OVERVIEW OF THE BUSINESS OF NON-GOVERNMENTAL
ORGANIZATION
D-50. Stankovic B. (Novi Pazar – Serbia)
LEGISLATIVE FRAMEWORK FOR RESTRUCTURING OF PUBLIC
ENTERPRISES IN SERBIA, FOR INSTANCE THE RAILWAY SECTOR
D-51. Stefanov S. (Novi Sad – Serbia), Bioanin R. (Novi Pazar – Serbia), Pavlovic S.
(Banja Luka – Bosnia and Herzegovina)
MODELING OF POLLUTANTS CO, PM, PAH IN ACCIDENTAL FIRE AT THE
LANDFILL WASTE
D-52. Stojanovi M., Barzilovi S., Tomi M. (Bor – Serbia)
ROLE OF HUMAN RESOURCES MANAGEMENT IN ORDER TO REDUCE THE
FLUCTUATION OF EMPLOYEES IN THE MECHANICAL INDUSTRY
D-53. Šerifi S.V. (Vrnjaka Banja – Serbia), Elezovi N. (Kosovska Mitrovica – Serbia),
uri S. (aak – Serbia)
A CONCEPT OF POSSIBLE MODEL SOLUTIONS OF WASTE MANAGEMENT
SYSTEM IN THE PRIZREN REGION
D-54. Škrbi V. (Banja Luka – Bosnia and Herzegovina), Badi M., Bioanin R. (Novi
Pazar – Serbia)
SECURITY INTELLIGENCE ACTIVITIES IN THE TRANSPORTATION
MANAGEMENT DANGEROUS
D-55. Todorovi O., Stankovi J., Stankovi J. (Niš – Serbia)
MULTI-CRITERIA ANALYSIS MODELS IN THE FUNCTION OF MANAGING
OPERATIONAL RISK IN THE ENTERPRISE
D-56. Tomi R., Peci Lj. (Trstenik – Serbia), Mandi V. (Kragujevac – Serbia)
CONTRIBUTION TO MANAGEMENT OF RESEARCH OF SYSTEM
OF HARD INDUSTRIAL WASTE TREATMENT
869
875
879
886
894
902
911
919
925
933
938
947
955
962
969
974
XVII

D-57. Tomic R. (Trstenik – Serbia), Sedmak A. (Belgrade – Serbia), Pecic Lj. (Trstenik –
Serbia)
PROCESS OF GENERATING OF QUALITY SOLUTION OF THE OIL GEAR PUMP
WHICH IS LEADING TO EFFECTIVELY HIGH PERFORMANCE PRODUCT
D-58. Trnavac D. (Belgrade – Serbia), Daši P. (Vrnjaka Banja – Serbia), Stanisavljevi
I. (Leskovac – Serbia)
STATISTICAL INDICATORS OF INNOVATION IN REPUBLIC OF SERBIA
D-59. Veloji D., Tomi M. (Bor – Serbia)
D-60.
D-61.
D-62.
D-63.
D-64.
D-65.
THE MOTIVATION OF EMPLOYEES IN INDUSTRY
Veselinovi P., Mii V. (Kragujevac – Serbia), Mileti D. (Zajear – Serbia)
TECHNOLOGICAL INTENSITY, COMPETITIVENESS AND INNOVATIVITY OF
MANUFACTURING INDUSTRY OF SERBIA
Vidovi A. (Banja Luka – Bosnia and Herzegovina)
RISK MANAGEMENT IN ISO 9000, ISO 14000 AND ISO 14001
Zeevi R., Kari D., Labovi D. (Belgrade – Serbia)
FOREIGN DIRECT INVESTMENT AS A FACTOR OF THE INDUSTRIAL
DEVELOPMENT
Zhelezarova I.S. (Gabrovo – Bulgaria)
CLASSIFICATION OF THE STATISTICAL METHODS FOR QUALITY
MANAGEMENT
Zurni S. (Gradiška – Bosnia and Herzegovina)
RESEARCH AND DEVELOPMENT FOR SMALL AND MEDIUM-SIZED
COMPANIES IN BOSNIA AND HERZEGOVINA
Živadinovi J. (Bor – Serbia)
EDUCATION AND DEVELOPMENT OF EMPLOYEES IN THE MECHANICAL
INDUSTRY
981
992
998
1004
1012
1016
1021
1025
1030
E-1.
E-2.
E-3.
E-4.
E-5.
E-6.
SESSION E
APPLICATION OF MECHANICAL ENGINEERING IN OTHER
INDUSTRIAL FIELDS
Arsenijevi D., Jankovi V., Paji T. (Lazarevac – Serbia)
RECONSTRUCTION OF BUCKET WHEEL EXCAVATIOR SchRs -1760 SLEWING
DRIVE AND PROVIDING PROTECTION FROM ACCIDENTAL BREAKDOWN
Avdeenko A.P., Konovalova S.A., Avdeenko E.A. (Kramatorsk – Ukraine)
TESTS OF MEDIUM-TEMPERATURE GREASE “NATOL-P-1” ON ROLLER-
FRICTION TEST MACHINE
Bajmak Š. (Kosovska Mitrovica – Serbia)
ANALYSIS OF CHARACTERISTICS CAVITATION EJECTORS IN CENTRAL
HETING SYSTEMS WITH TEMPERATURE AND INJECTED OF FLUID
Bajmak Š. (Kosovska Mitrovica – Serbia)
ANALYSIS OF THE REGIME OF SUBSTATIONS WITH DIRECT WATER AFTER
SEIZURE EJECTORS DEPENDING ON THE HEAT CAPACITY OF HEAT
Bajmak Š. (Kosovska Mitrovica – Serbia)
DETRENINATION OF EITHER PER - HOUR AND PER YEAR OPTIMAL
COOLING COEFICIENT AS WELL AS RATEID AND PEAK - LOAD COOLING
ENERGY SOURCE (COOLD WATHER) RATIO IN THE SYSTEM OF
CENTRALIZED SUPPLAY WITH COOLING ENERGY (SCSCE)
Bajmak Š. (Kosovska Mitrovica – Serbia), Šerifi S.V. (Vrnjaka Banja – Serbia)
ANALYSIS AND CALCULATION OF GAS - TURBINE PLANTS WITH WARM
AIR, MULTISTAGE COMPRESSION AND EXPANSION OF MULTISTAGE
1039
1046
1050
1060
1068
1079
XVIII

E-7.
E-8.
E-9.
E-10.
E-11.
E-12.
E-13.
E-14.
E-15.
E-16.
E-17.
E-18.
Bajmak Š. (Kosovska Mitrovica – Serbia), Šerifi S.V. (Vrnjaka Banja – Serbia)
ANALYSIS OF DISTRICT COOLING AND DETERMINATION OF OPTIMAL
DEPTH OF LAYING PIPELINES WITH COLD WATER IN THE DISTRICT
COOLING
Bugariu D., Pasca O.M., Toth-Tascau M., Saftescu-Jescu C. (Timisoara – Romania)
STUDY OF FLEXIOX-EXTENSION MOVEMENT IN KNEE AND ANKLE JOINTS
DURING CYCLING
Chudzik A. (ód – Poland)
PERFORATED WALLS – PERFORATED PLATES INTEGRAL PART OF THE
HEAT EXCHANGER
oki D.J., Vukovi D.G., Sovrli R.V., Popovi M.Z., Marinkovi D.A., Uskokovi
S.P. (Belgrade – Serbia)
FUNCTIONALIZATION OF MULTI-WALLED CARBON NANOTUBES BY
BINGEL REACTION AND 1,3-DIPOLAR CYCLOADITION
orevi Lj., Trifunovi D., Mihajlovi G., Nikoli R. (Trstenik – Serbia)
THE PROBLEM OF MAINTAINING COPPER ORE GRINDING MACHINES
ukanovi S.J., Marinkovi D.A. (Belgrade – Serbia), Milosavljevi M.M.
(Kosovska Mitrovica – Serbia), Markovi M.J., Boži R.A., Budimirovi S.D.
(Belgrade – Serbia)
CATALYTIC SYNTHESIS OF N-ALKYL, N, N-DIALKYL AND N-CYCLOALKYL-
O-ISOBUTYLTHIONCARBAMATES APPLIED AT SEMI-INDUSTRIAL LEVEL
Kochevski V.P., Kochevska V.V., Dochev M.G. , Penkova T.G. (Lovech – Bulgaria)
CORDLESS HAND DRILLS
Korchak E.S. (Kramatorsk – Ukraine)
SYSTEM OF ACCELERATED FILLING OF HYDRAULIC PRESS POWER
CYLINDERS WITH LOW-PRESSURE HYDRAULIC FLUID
Korchak E.S., Bykovsky V.N. (Kramatorsk – Ukraine)
HOW TO PROJECT RELIABLE AND DURABLE HYDRAULIC PRESS FRAMES
OF COLUMNAR TYPE
Kudina H.F. (Gomel – Belarus), Burya A.I. (Dnipropetrovsk – Ukraine)
THE INFLUENCE OF HYBRIDE FILLERS ON SILICATE MATRIX ON PHYSICO-
MECHANICAL PROPERTIES OF COMPOSITES
Markovi D., Velji M., Simonovi V., Markovi I. (Belgrade – Serbia)
VELOCITY SENSORS OF ROTATION TECHNOLOGICALS UNITS ON GRAIN
COMBINES AND DIRECTIVES FOR THEIRS CALIBRATION
Markovi M.J., Brkovi V.D., ukanovi S.J., Kaarevi-Cvetkovi J., Budimirovi
S.D., Marinkovi D.A. (Belgrade – Serbia)
GLYCOLYSIS OF POLYETHYLENE TEREPHTHALATE WASTE
E-19. Medgyesi T., Popescu M., Opris C., Bereteu L., Rosu R., Micu L. (Timisoara –
Romania)
MAKING OF FLAME BRAZED JOINTS FROM THE REFRIGERATION
MECHANISM OF REFRIGERATORS USED FOR FOOD INDUSTRY
E-20.
E-21.
E-22.
E-23.
Mihajlovi G., orevi Lj., Nikoli R., Trifunovi D. (Trstenik – Serbia)
HYDRAULIC AND PHEUMATIC COMPONENT REENGINEERING BY HARD
CHROME PLATING
Mikhov M.R. (Sofia – Bulgaria)
PERFORMANCE ANALYSIS OF A BRUSHLESS DC MOTOR
DRIVE FOR MECHANICAL INDUSTRY
Milosavljevi M.M. (Kosovska Mitrovica – Serbia), Marinkovi D.A., ukanovi
S.J., Brkovi V.D., Kaarevi-Cvetkovi J., Živanovi Z.M. (Belgrade – Serbia)
SYNTHESIS OF N-ALKYL, N, N-DIALKYL AND N-CYCLOALKYL-O-ISOBUTYL
THIONCARBAMATES: A CATALYTIC STUDY
Nagy R., Menyhardt K. (Timisoara – Romania)
KINEMATICS OF AN UPPER LIMB PROSTHESIS MODEL
1087
1097
1103
1109
1118
1123
1129
1133
1137
1142
1149
1156
1162
1168
1172
1178
1184
XIX

E-24. Ormandzhiev H.K. (Gabrovo – Bulgaria)
DYNAMICAL PROCESSES IN AUTOMATIC SYSTEM FOR GOVERNING OF
CROSS-FLOW TURBINE
E-25. Pasca O.M., Vigaru C., Stoia D.I. (Timisoara – Romania)
SHORT REVIEW ON ANKLE-FOOT ORTHOTICS
E-26. Popescu M., Rou R.A., Bran I. (Timisoara – Romania)
RESPIRATORY PROTECTION AT THERMAL SPRAYING
E-27. Pulov D. (Gabrovo – Bulgaria)
INFRARED TRIPLET – THE THIRD ORDER SOLUTIONS
E-28. Rachev P. (Gabrovo – Bulgaria)
MATHEMATICAL MODELING OF ERRORS OBTAINING PROCESS DURING
MECHANICAL TREATMENT
E-29. Rachev S., Dimitrov Ly. (Gabrovo – Bulgaria)
DETERMINATION OF ELECTRICAL ENERGY LOSSES IN CASE OF
CENTRIFUGAL PUMP STARTING
E-30. Rancea A. (Iai – Romania), Mcu S. (Galai – Romania)
THE METHOD TO REUSE A MATERIAL USED IN ORTHOTIC
E-31. Rancea A. (Iai – Romania), Mcu S. (Galai – Romania), Merticaru V. (Iai –
Romania)
”COMARNA” ORTHOSIS FOR TRAUMA RECOVERY ON THE AHILES TENDON
E-32. Rudenko N.A., Laptev A.M. (Kramatorsk – Ukraine)
COMPACTION AND PROPERTIES OF HIGHLY POROUS POWDER PARTS
PRODUCED WITH VARIOUS PORE FORMERS
E-33. Simi D.V., Dimitrijevi S.B. (Belgrade – Serbia)
E-34.
E-35.
E-36.
E-37.
E-38.
E-39.
E-40.
MODELLING OF AUTOMOBILE SHREDDER RESIDUE PROCESSING
Slavov D.Z. (Varna – Bulgaria)
ON THE DECISION THEORY WITH INFINITE MANY CRITERIA IN
ENGINEERING SYSTEM
Subaranovic T., Polomcic D., Pavlovic V., Pajic N. (Belgrade – Serbia)
A TRANSIENT THREE-DIMENSIONAL NUMERICAL MODEL OF WATER
IMPERMEABLE SCREEN EFFECTS ON THE GROUNDWATER INFLOW
REDUCTION INTO THE MINE (CASE STUDY: OPEN PIT MINE DRMNO,
SERBIA)
Ttaru G. Zoller I., Stark A. (Petrosani – Romania)
DETERMINING THE GREEN FUNCTION CORESPONDING TO THE
DIFFERENTIAL EQUATION OF THE ELASTIC LINE OF THE STRAIGHT BAR
Tomchev P., Nenov N., Ivanova R. (Gabrovo – Bulgaria)
SUBMERSIBLE INDUCTION WATER HEATER
Toth-Tascau M., Krepelka M. (Timisoara – Romania)
BIOMECHANICAL BEHAVIOR ANALYSIS OF LONG-STEM HIP PROSTHESIS
Toth-Tascau M., Rusu L., Balanean F., Toader-Pasti C. (Timisoara – Romania)
MECHANICAL TESTS OF THE STABILIZATION SYSTEM FOR RADIUS
FRACTURES
Velikovi S.Z., Baji Z., Marinkovi D.A., Vukovi D.G., oki D.J., Uskokovi
S.P. (Belgrade – Serbia)
IMPROVING THERMAL CONDUCTIVITY OF ENGINE COOLANT BY
COPPER/MULTIWALLED CARBON NANOTUBES NANOCOMPOSITE
E-41. Velji M., Markovi D., Markovi I., Simonovi V. (Belgrade – Serbia)
TECHNOLOGICAL DATA SYSTEMS IN VEGETABLE PRODUCTION
E-42. Vodolazskaya N. (Donetsk – Ukraine), Iskritzskiy V., Vodolazskaya E.
(Kramatorsk – Ukraine)
CHOICE OF CHARACTERISTIC OF THREADED CONNECTIONS SIMULATOR
IN THE STAND FOR MEASURING ENERGY OF SIMPLE SHOCK OF RARELY
IMPACT WRENCHES
1191
1199
1204
1210
1217
1223
1231
1235
1240
1245
1251
1257
1265
1272
1277
1283
1288
1294
1301
XX

E-43. Zejnelagi A., Kalender A. (Rožaje – Montenegro), Markovi Lj.S. (aak –
Serbia)
TECHNOLOGICAL POSSIBILITIES FOR REGENERATING ENGINE BLOCKS IN
INTERNAL COMBUSTION ENGINES
E-44. Zoller I., Sârbu R, Avram C.B., Stark A. (Petrosani – Romania)
DESIGN OF CENTRIFUGAL HYDRAULIC CLASSIFIERS BASED ON
HYDRODYNAMIC SIMILITUDE
E-45. Živanovi M.Z., ukanovi S.J., Sovrli R.V., Stankovi J.S. (Belgrade – Serbia)
AN OVERVIEW OF AIR POLLUTION DISPERSION MODELS WITH SPECIAL
REGARD TO POLLUTANT DISPERSION OVER COMPLEX AND URBAN
TERRAIN
E-46. Živkovi D. (Belgrade – Serbia), Pozhidaeva V. (Sofia – Bulgaria), Leti M.,
Matotek M. (Zrenjanin – Serbia)
OPERATING READINESS OF CORN HARVESTERS ZMAJ Z-222 AS A
CRITERION FOR SUCCESFULNESS OF ITS MAINTENANCE
E-47. Živkovi D., Velji M. (Belgrade – Serbia), Pozhidaeva V. (Sofia – Bulgaria),
Medenica M. (Belgrade – Serbia)
TIME OF ENGAGEMENT IN PREVENTIVE MAINTENANCE FOR „BELARUS
MTZ-892“ TRACTOR
E-48. Živkovi D.K. (Belgrade – Serbia)
VAN CEULEN AND HIS COBTRIBUTION TO THE CALCULATION OF THE
NUMBER PI
1309
1315
1320
1327
1333
1341
XXI

11 th International Conference
Research and Development in Mechanical Industry
RaDMI 2011
15 - 18. September 2011, Sokobanja, Serbia
A TRANSIENT THREE-DIMENSIONAL NUMERICAL MODEL OF
WATER IMPERMEABLE SCREEN EFFECTS ON THE
GROUNDWATER INFLOW REDUCTION INTO THE MINE
(CASE STUDY: OPEN PIT MINE DRMNO, SERBIA)
Tomislav Subaranovic 1 , Dusan Polomcic 2 , Vladimir Pavlovic 3 , Natasa Pajic 4
University of Belgrade, Faculty of Mining and Geology, 11000 Belgrade, SERBIA
1 E-mail: tomace@rgf.bg.ac.rs, 2 E-mail: dupol2@gmail.com,
3 E-mail: vladimir.pavlovic@rgf.bg.ac.rs,
4 Military Technical Institute, 11000 Belgrade, SERBIA, E-mail: natasa.pajic@eunet.rs
Summary: In this paper are presented effects of water impermeable screen in dewatering system of the open pit
mine. The Drmno open pit mine is the second largest active mine in Serbia where coal has been exploited for
more than twenty years. The nearness of Danube and Mlava river being in intensive hydraulic connection with
aquifers surrounding the mine have conditioned both the complexity of hydrogeological terrain and the mine
protection system from groundwater. So far in the design solutions of the Drmno open pit mine pre-dewatering,
the protection system from groundwater in front of the mine advancing contour has consisted exclusively of
drainage wells. However, such a mine protection system has not yielded satisfactory results, thus significantly
higher groundwater table than required for undisturbed work has been recorded. Therefore, the possibility of
constructing water impermeable screen in front of face advancing has been considered whereby the water inflow
from the rivers would be prevented. The selection of screen location has been determined on the basis of
extensive exploratory work. The presented hydrodynamic analysis is the first quantified indicator of a water
impermeable screen influence on the groundwater inflow reduction into the mine.
Key words: groundwater modeling, open pit mine, dewatering system, water impermeable screen.
1. INTRODUCTION
The Drmno open pit mine is situated 100 km east of Belgrade, in the vicinity of the confluence of the
Mlava River into the Danube. These rivers, as well as Dunavac channel, being intensive hydraulic
connections with aquifers formed in alluvial sediments, Romanian gravel and Pontian sand which
overlying two main coil soils. In this circumstances design of mine protection system from
groundwater is very complex. In the past twenty years several numerical model was created to
improve designing of the dewatering system. The previous multi-layer model of the Drmno open pit
mine was completed in 1999 [1 Pusic et al., 1999]. In the meantime, significant changes of the size
and shape of the open pit mine flow field have occurred, thus in order to conduct this hydrodynamic
analysis of screen completing effect at the Drmno open pit mine, its new numerical model was
required.
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2. MATERIAL AND METHODOLOGY
The geology conditions around the Drmno open pit is very comlexity. The result of sedimentation
conditions is periodic appearance sedimentary series, which consist alluvial deposits and loess,
Romanian gravel (Pl 1 ), the second coal soil, Pontian sand ( 2 Pl 3 2), dusty sand and the third coal soil
(from top to bottom) (figure 1). Identified layers from the surface of the terrain are given in table 1.
The overlying bed of the Fifth or the Sixth layer (unevenly) is comprised of the Third coal layer,
which is, by its hydrogeological and hydraulic mechanism an aquifuge. As an illustration of the stated
schematization, in Figure 1, there are shown schematized lithological profiles of the Drmno open pit
striking south-north and west-east.
The drainage wells are located in the from of line barrages along the boundaries of the open pit mine
and in front of the face line in ten barrages (figure 2). The distance between well barrages is from 450-
650 m. Each well barrage consists of two well lines (one for tapping aquifer in Romanian gravel, one
for aquifer in Pontian sand) being at the distance of 50 m, except the SLA barrage being with one well
line (tapping only aquifer in gravel). Wells in line are from 75 to 150 m far away one from another.
All the wells are worked as fully penetrated, with the depth of 26.5 - 143 m.
Table 1: Identified layers of the Drmno open pit
First water-bearing layer
Overlying alluvial and loess sediments
Second water-bearing layer Predominantly gravel water-bearing layer
Third water-bearing layer
Sandy and clayey layer in the overlying bed of the Second coal soil
which drifts into the overlying sandy layer of the Third coal soil;
Fourth combined aquifuge -
water bearing layer
Fifth water-bearing layer
Sixth combined aquifuge –
water-bearing layer
The Second coal layer (aquifuge) drifting into
overlying sandy layer of the Third coal layer;
Sandy layer overlying the Third coal layer. In western part of the
terrain it overlies the Sixth (model) water-bearing layer;
The silt-sandy layer overlying the Third coal layer. In part of the
terrain where it is absent, sands, whose main representative in the
model is the Fifth water-bearing layer, constitute the overlying bed of
the Third coal layer.
Figure 1: Schematic cross-section of the Open Pit Drmno [2 Pusic and Polomcic, 1999]
Legend: 1.Alluvial and loess sediments; 2. Romanian Gravel (Pl 1 ); 3a. Upper Pontian Sand ( 2 Pl 3 2); 3b. Upper
Pontian Clay ( 2 Pl 3 2); 4. The Second coal soil ( 2 Pl 3 2); 5. Upper Pontian Dusty sand ( 2 Pl 3 2); 6. The Third coal soil
( 2 Pl 3 2); 7. The lower Pontian aquifuge sediments ( 1 Pl 3 2)
The average annual groundwater quantity pumped by the drainage well system amounts about
12.78*10 6 m 3 . To prevent the inflow of groundwater from alluvial layers of the Mlava River to the
layout of the mine, a water impermeable screen (figure 2) with the length of 2200 m and the depth of
12-30 m was built in along the southern and south-eastern border of the mine field during the year
1984.
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Figure 2: Location of existing buildings for protection from groundwater (1 st January 2006),
as well as of designed buildings (till 31 st December 2011)
2.1. Concept of mine protection from groundwater inflow till end of 2011
Till 31 st December 2011 the designed drainage wells are distributed in front of the face of mining work
in three barrages (LC-X, LC-XI and LC-XII), and along eastern and western sides of the designed
open pit mine shape in two barrages (SLA and LB-V) (Figure 2). Wells are fully penetrated and tap
water from either alluvial gravels or alluvial gravels and sands in the overlying bed of the third coal
layer. The distance between wells in the line tapping only the gravel aquifer is 100 m, while the
distance between wells tapping both the gravel and sand aquifers is 75 m. The distance between
barrages of wells is about 320 m in western part, and about 500 m in eastern part. The depth of wells is
the shallowest in eastern part of the deposit (10 m), and the highest in north-west part of the deposit,
and it amounts 144 m.
The hydrodynamic analysis of the work effects of the Drmno open pit mine protection system is
carried out to the end of the year 2011 inclusive taking into account the layouts of the mine advancing
[3 Polomcic and Subaranovic, 2006] for this period have been made yearly.
3. THEORY AND CALCULATION
The code selected to develop the numerical model was MODFLOW-2000; a modular, threedimensional
finite difference groundwater flow model developed by US Geological Survey [4
Harbaugh et al, 2000]. The program used in this work is Groundwater Vistas 5.33b (Environmental
Simulations International, Ltd.).
The hydrodynamic model of the Drmno open pit mine was drafted and completed like a multi-layer
model with overall six layers, observed in a vertical profile. Each of these layers corresponds to a
specific real layer, separated on the basis of the knowledge of the terrain and the results of conducted
analyses of large–scale field exploratory work. The real geometry of schematized layers is represented
(simulated) in the model in compliance with the actual spreading of these layers, both in plan and
cross-section view. The model is comprised of six schematised layers with 716772 cells in all, among
1259

which there are 439713 active ones. The discretization of the stream region is with fields ranging from
50x50 m to 12.5x12.5 m in plain. Groundwater flow is calculated in the model as real flow, confined
or unconfined in each field of the discretization separately, whereby the conditions of flow in the
model have been changed during time in accordance with real conditions.
As entering data for the recalibration of the existing model, there were used the data of well capacities
of the drainage system and measured groundwater levels in the observing wells, recorded in the field
during January 2005 till January 2006, the mean month water table of the Mlava and the Dunavac and
sums of precipitation per months [2 Polomcic and Subaranovic 2006]; [5 Polomcic et al., 2006]. In
Figure 3, there is shown the distribution of groundwater levels, obtained by the simulation of
groundwater regime with the state on 10 th January 2006.
Figure 3: Distribution of groundwater levels in the fifth model layer obtained
by simulation of groundwater regime with state on 10 th January 2006
3.1. Predict calculations-assumption and dewatering variants
Predict hydrodynamic calculations have been realized in the transient flow regime taking into account
and assigning all dominant parameters of the open pit groundwater regime. The basic calculating step
was one month which at lower level of iterations was divided into 10 parts of unequal duration (factor
1.2).
Predict calculations embraced three dewatering scenarios (variants), all of them for the period from 1 st
January, 2006 till 31 st December 2011:
a. Variant 1 – dewatering only by drainage wells beginning on 1 st January 2006
b. Variant 2 – dewatering by drainage wells beginning on 1 st January 2006 (in the same locations
as in Variant 1), as well as activating a water impermeable screen in the location shown in
Figure 4, beginning on 1 st January 2008.
c. Variant 3 – dewatering by drainage wells beginning on 1 st January 2006 (in the same locations
as in Variant 1 excepting new wells in SLA barrage) as well as activating a water
impermeable screen in Variant 2, extending the screen in eastern part of the field beginning on
1 st January 2008.
Boundary conditions of the model in predict calculations were assigned taking into account both their
real impact on groundwater regime and their real values.
The water table of the Mlava was assigned as the mean value of several years, at the elevation
of
71.07 m.
The water table of the Dunavac channel was assigned by the maintained elevation of water
table at the pump station at the elevation of 65.0 m;
The average vertical infiltration amounts 6.6x10 -9 m/s;
1260

In the eastern boundary of the model, the recorded groundwater inflow along the layout of the
third coal seam wedging, which exists in the nature through loess and gravely sediments, is
assigned in the model as the inflow of 10 l/s per km of this layout length.
In addition to these boundary conditions, in predict calculations, there were also assigned boundary
conditions which simulate the development of the open pit mine and the mine protection system from
groundwater, first of all: the mine layout, drainage wells and the water impermeable screen.
The dynamics of connecting and disconnecting, first of all drainage wells, assigned in predict
calculations, is given in table 2.
Table 2: Dynamics of assigning of drainage wells in predict calculations
Date of assignment
Barrage
Number of wells
mark
in barrage
Kind of assignment
LC X 31 Well activating
1 st January 2007
SLA 12 Well activating
LC VI 9 Stopping work
LC VII 11 Stopping work
LC XI 40 Well activating
SLA 5 Well activating
1 st January 2008
LB V 2 Well activating
LC-VIII’ 19 Well activating
LB-V’’ 2 Stopping work
LC-IX 1 Stopping work
1 st January 2009
1 st January 2010
1 st January 2011
LB-V’’ 6 Stopping work
LC-IX 21 Stopping work
SLA 7 Well activating
LB V 4 Well activating
LB-V’’ 1 Well activating
LC-IX 1 Stopping work
LC-IX’ 12 Stopping work
LC-X 3 Stopping work
LC-X 27 Stopping work
LC-IX’ 12 Stopping work
LC XII 43 Well activating
Scopes of initial well capacities assigned in predict calculations are shown in table 3.
Table 3: Scopes of initial well capacities
Barrage mark
Well capacities in aquifer in gravel Well capacities in aquifer in
(the second model layer) (l/s) sand (the fifth model layer) (l/s)
LC X 4 - 8 1.5-7.3
LC XI 4 - 13 1.0-10.0
LC XII 4 - 15 1.5-10.4
LB V 17.5 4.0-12.0
SLA 1 – 3.7 /
A water impermeable screen is placed around the future border of the open pit mine to protect from
groundwater inflow from north, west and east into the working space of the mine. The position of the
screen is determined depending on the location of the designed layout of the open pit mine and the
location of groundwater recharge source [8 Ilic S. et. al., 2006], [9 Subaranovic and Polomcic, 2006].
In relation to the gravel layer, the screen is a fully penetrated, whereby water bearing gravel layer
would be cut off [10 Ilic S. et al., 2006]. According to Variant 2, the screen of total length of 4412 m
protects the open pit mine from west and north from groundwater inflow (Figure 2). In this Variant,
wells of SLA barrage serve for protection from inflow from the eastern side. In Variant 3, the
1261

proposed screen is with the total length of 6999 m and protects the open pit mine from western,
northern and eastern sides from groundwater inflow (Figure 2). Western and northern layouts are
identical in Variants 2 and 3.
It was included in the defense system from groundwater on 1 st January 2008. The thickness of the
screen amounts 1.0 m, and the hydraulic conductivity of the screen filling is K = 1x10 -8 m/s
[11 Subaranovic et al., 2006], [12 Milosevic et al., 2007].
3.2. Results of predict calculations
The results of the Drmno Open Pit Mine dewatering simulation for all three variants of mine
protection from groundwater inflow were interpreted and shown in time cross sections at the end of
2008, 2009, 2010 and 2011 years. Maps of piezometric level distribution in the sandy water bearing
layer which overlying the third coal soil at the end of each year of the prediction period for the variant
2 are shown in figure 4.
2008 2009
2010 2011
Figure 4: Map of contours of water table in the sand above the third coal seam (Variant 2)
Groundwater levels in model cells with the assigned well capacities which have been calculated, are
the representative levels in these cells. Each well has been placed in a special discretization field, and
the maximal error in the supposition of its location (by coordinates) is to ± ~6 m.
According to the shown maps, it can be concluded that in the overlying sand of the third coal layer the
significant work effect of drainage wells is noticed, already at the end of the first year of the calculated
period. The difference between the flow state of groundwater within bordering lines of the drainage
system and the area beyond this line is obvious. By building the water impermeable screen (Variants 2
and 3) the direct impact of water infiltration from the Dunavac channel is stopped, except that, through
deeper sandy sediments.
The general impact of the water impermeable screen in the dewatering system, which from the
moment of its constructing affects the decreasing of overall well capacity in barrages, can be seen in
the diagram in figure 5. At the end of the first year of the water impermeable screen existing (31 st
December 2008) the impact of the screen on the decrease of barrage capacity amounts 42.32 l/s
1262

(Variant 2), namely 77.16 l/s (Variant 3). At the end of the forecast period (31 st December 2011) the
impact of the screen can be seen in the decreasing of 111.0 l/s (Variant 2), namely125.2 l/s (Variant 3).
Calculated in relation to Variant 1, it means that according to Variant 2, it is required to pump 3.5x10 9
m 3 less groundwater yearly, namely 3.94x10 9 m 3 according to Variant 3.
300
250
200
150
Q (l/s)
100
50
Variant 1
Variant 2
Decrease of summary capacity due
to dewatering screen - Variant 2
Variant 3
0
Decrease of summary capacity due
to dewatering screen - Variant 3
31.12.2005 31.12.2006 31.12.2007 30.12.2008 31.12.2009 31.12.2010 31.12.2011
Figure 5: Diagram of overall annual capacities of all barrages in front of mine northern layout
according to dewatering variants of Drmno open pit mine
3.3. Discussion of variant calculation results
In Variant 2 of the open pit mine dewatering with the constructed water impermeable screen in the
north, together with the existence and work of designed wells, the inflow of groundwater is decreased
as expected because of the infiltration of the water from Dunavac channel in relation to Variant 1. In
this calculation Variant the aquifer in gravel is drained even faster, which results in larger number of
drained wells which are being disengaged. In Variant 3, which in relation to Variant 2 has the
prolongation of the water impermeable screen along the eastern pit layout, the stated situation is even
more pronounced. Generally, for open pit dewatering Variants 2 and 3, it stands that the effect of
water impermeable screen is pronounced more clearly after the second year of its existence.
On the basis of the obtained calculation results, the conclusion is reached that, dynamically observed,
the time is the most significant factor in the process of the Drmno open pit mine dewatering. The
increase of both capacity and the number of wells does not yield satisfactory effects. On the other side,
the existence of the water impermeable screen plays a significant role in the lowering of groundwater
level in front of the face advancing layout.
The results of the simulation of the mine protection from groundwater have shown that the water
inflow from the aquifer in gravel, from the direction of the Dunavac amounts 0.140 l/s/m, and from the
Mlava 0.478 l/s/m, while with the water impermeable screen the inflow from the Dunavac direction is
reduced to 0.000453 l/s/m, namely from the Mlava to 0.00563 l/s/m. It means that by building in a
water impermeable screen from the Dunavac direction groundwater inflow from the gravel will
decrease by 99.67%, namely from the Mlava direction by 98.82%.
Time
4. CONCLUSION
The existing system for the Drmno open pit mine protection from groundwater inflow does not yield
satisfactory effects which can be seen in general increase of groundwater level and insufficient rate of
groundwater lowering, especially in front of mining work face advancing. By earlier design solutions
the mine protection system was exclusively anticipated by drainage wells. The effects of the mine
protection system consisting of drainage wells and the water impermeable screen north, west and east
1263

of the face advancing layout are analysed in this paper. The carried out calculations together with the
techno-economic analysis have pointed out significantly higher effects in the lowering of groundwater
level and the decreasing of inflow in the mine with the participation of the waterproof screen, with
lower costs of completion and maintenance.
REFERENCES
[1] Pusic M., Polomcic D., Radonic S. et al.: Simulation of groundwater regime developing a hydrodynamical
model of the open cast mine “Drmno” in Kostolac coal basin. Mining Science and Technology Vol 3. No.
1-4. Belgrade, 1999, pp. 7-21.
[2] Pusic M., Polomcic D.: Hydrodynamical model of dewatering of open pit "Drmno". Proceedings of XII
Yugoslav Symposium of Hydrogeology and Engineering Geology. Book I. Novi Sad, Serbia, 1999, pp.
293-302.
[3] Polomcic D., Subaranovic T.: Test of dewatering screen model on example of Drmno open pit mine. VII
International Conference NONMETALS. ISBN: 86-7352-174-2. Yugoslav Opencast Mining Committee.
Belgrade, 2006, pp. 327-334.
[4] Harbaugh A.W., Banta E.R., Hill M.C. and McDonald M.G.; MODFLOW-2000: The U.S. Geological
Survey Modular Ground-Water Model. User Guide to Modularization Concepts and the Ground-Water
Flow Process, U.S. Geological Survey Open-File Report 00-92, Reston, VA, USA, 2000, pp. 121.
[5] Polomcic D., Dimitrijevic B., Ilic S.: Establishing of hydrodynamic model of Drmno deposit. VII
International Conference. NONMETALS. ISBN: 86-7352-174-2. Yugoslav Opencast Mining Committee.
Belgrade, 2006, pp. 321-326.
[6] Subaranovic T., Dimitrijevic B., Majstorovic J.: Optimization of system for groundwater protection on
open pit coal mine Drmno, Proceedings of the IX National Conference of the Open and Underwater Mining
of Minerals with International Participation, ISBN: 978-954-91547-8-8, Varna, Bulgaria, 2007, pp. 90-97.
[7] Pavlovic V., Subaranovic T., Jocic B.: Significance of monitoring and administration of dewatering wells
for protection of coal open pit mines from ground water intrusion, Proceedings of the 7-th European Coal
Conference, ISBN: 978-966-02-4855-7, National Academy of Sciences of Ukraine, Lviv, Ukraine, 2008,
pp. 136-140.
[8] Ilic S., Polomcic D., Dimitrijevic B., Dimkic G.: Analysis of current technologies of dewatering screens
construction in Serbia. VII International Conference NONMETALS. ISBN: 86-7352-174-2. Yugoslav
Opencast Mining Committee. Belgrade, 2006, pp. 106-110.
[9] Subaranovic T., Polomcic D.: Selection of location for dewatering screen construction on Drmno open pit
mine. VII International Conference NONMETALS. ISBN: 86-7352-174-2. Yugoslav Opencast Mining
Committee. Belgrade, 2006, pp. 400-405.
[10] Ilic S., Polomcic D., Jovovic S., Zivkovic D.: Additional geologic explorations for needs of dewatering
screens construction on open pit mine Drmno. VII International Conference NONMETALS. ISBN: 86-
7352-174-2. Yugoslav Opencast Mining Committee. Belgrade, 2006, pp. 111-121.
[11] Subaranović T., Ilic S., Krstovic S.: A contribution to exploration for construction of waterproof screen on
open pit mine Drmno, Underground mining engineering, No15, UDK 62, YU ISSN 0354-2904, Faculty of
Mining and Geology, Belgrade, Serbia, 2006, pp. 107-112.
[12] Milosevic D., Subaranovic T., Milanovic R.: Overview of results for Screen model examination on open pit
mine Drmno in Kostolac coal basin, Proceedings of the IX National Conference of the Open and
Underwater Mining of Minerals with International Participation, ISBN: 978-954-91547-8-8, Varna,
Bulgaria, 2007, pp. 73-81.
[13] Pavlovic V., Subaranovic T.: Visibility Analysis of Manufacturing Waterproof screen on the example of
open pit Drmno. VIII International Conference of Surface Mining, Vrujci Spa, Serbia, 2007, pp. 203-207.
1264

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