RMZ â MATERIALI IN GEOOKOLJE

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392 Shemetov, P. A., Bibik, I. P.in uporabi emulzijskih minerskih eksplozivov. Razvit je bil algoritemza izračun elementov pri nameščanju eksplozivnih nabojev v minskihvrtinah z ozirom na želeno zdrobljenost dane kamnine. Opravljeneso bile raziskave z namenom izboljšati pripravo matrične emulzijeeksplozivov iz surovinskih raztopin. Razvit je bil postopek miniranjana visokih etažah in dalje, postopek miniranja v kamninah z različnimitrdimi vključki. Predlagana je metoda miniranja, ki je seizmičnovarna za varovane objekte brez zmanjševanja učinkovitosti drobljenjakamnin. Na osnovi raziskav in analize tveganja delovanja proizvodnepostaje za varno pripravo emulzijskih eksplozivov je bil izdelan celovitvarnostni sistem za varno obratovanje take postaje.Key words: deep open pit mines, increasingly complicated factors, efficiencyof mining operations, bulk blasts, parameters of blasting operations.Ključne besede: globoki površinski kopi, čedalje bolj zapletene razmere,učinkovitost rudarjenja, masovno miniranje, parametri miniranjaIntroductionDevelopment of mining industry inUzbekistan is inseparably associatedwith development of mineral depositsby open-pit method. As is known,the considerable part of open pits foropencast mining of minerals has entereda category of “deep” and thetendency still persists. Parameters ofcurrent open pit mines have essentiallyincreased. Large deep Muruntau andKalmakyr open pits located on the territoryof Uzbekistan are in the worldmining practice unique for complexityand novelty of the solved in the courseof their creation and operation scientificand technical problems defined bypeculiarities of mining-and-geologicaland mining-technical conditions ofdeposits development. There are predesignoptions of profitable miningand further development of Muruntauand Kalmakyr open pits to the depth of900–1000 m.Meanwhile, it is known that with increasingdepth of open-cast mining ofore deposits up to the utmost economicallyexpedient level there becomemore sophisticated mining-and-geologicaland mining-technical conditionsof operations, water content andfissuring of rocks increase, influence ofmine depth on ore resistibility to explosiverupture grows, and requirementsto safety of engineering structures installedon deep horizons are raised andetc. In whole, design of parameters ofdrilling and blasting operations (DBO)in deep open pit mines must take intoconsideration physical-mechanical and<strong>RMZ</strong>-M&G 2012, 59
Physicotechnical substantiation of parameters of blasting operations in deep ...393physicotechnical properties of rockschanging with mining depth, applicableblasting explosives (BE), seismicload of bulk blasts on safety of pitwalls, engineering structures and services,integrity of the ore-hosting solidand mine openings with involvementinto combined open-and-undergroundmining of ores deposited beyond the finalpit boundary near the pit edges andunder the pit bottom, when the openings(adits, inclined shafts and etc.)may be driven from the exhausted areaof the pit.Meanwhile, having analyzed the currentstatus of drilling and blasting systemallowing for regularities of changein the rock solid blastability as excavationdepth of Muruntau and Kalmakyropen pits increases, it has been determinedthat [1] :• known methodology for calculationof blasting parameters for therock solid in deep open pits doesnot fully ensure the required qualityof rock breaking;• there are no criteria of effectivenessof applicable emulsion BEusing low-price components manufacturedin the Republic of Uzbekistan;• known procedures of blasting andbreaking of rock mass are insufficientto increase completeness ofmineral extraction;• known DBO parameters designmethods do not fully meet specifiedcriteria and limitations to ensureprotection of the pit near-edge solidand engineering structures fromseismic load of blasting;• methodology used for calculationof parameters of safe protective pillarbetween open pit bottom and undergroundmine openings underestimatesseismicity of the near zonebeing of great importance duringconcurrent open-and-undergroundmining of deposits;• existing safety systems in productionand application of BE withcontrolled energy in deep open pitsdo not ensure safety of operationsto the full.Thus, assessment of DBO for opencastmining of deposits up to the utmosteconomically expedient level showsthat improvement of effectiveness ofdrilling and blasting system and optimizationof parameters of DBO processesis feasible through:• effectiveness of explosive breakingand displacement of rock mass;• development of formulation withcheaper and more high-energyemulsion BE using ingredientsmanufactured in Uzbekistan, whichcharacteristics suit the broken rockto the full;• development of blasting proceduresenabling to improve quality of rockmass breaking and to enhance completenessof commercial mineralextraction;<strong>RMZ</strong>-M&G 2012, 59
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IVTable of Contents - KazaloProfess
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Calculation of stress-strain depend
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Calculation of stress-strain depend
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() = (, )() () ()Calculation
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, ) (, )(, ) 1 () + = (, ) =
Page 15 and 16: Calculation of stress-strain depend
Page 21 and 22: RMZ - Materials and Geoenvironment,
Page 23 and 24: Petrochemical characteristics and g
Page 34 and 35: 360 Akinola, O. O., Talabi, A. O.A
Page 36 and 37: 362 Akinola, O. O., Talabi, A. O.of
Page 38 and 39: 364 Sunmonu, L. A., Adagunodo, T. A
Page 68 and 69: 394 Shemetov, P. A., Bibik, I. P.
Page 70 and 71: k =1.05+Dλ = 1+k =( s )396 Shemeto
Page 72 and 73: 398 Shemetov, P. A., Bibik, I. P.si
Page 74 and 75: у 3 b400 D = f eShemetov, P. A., B
Page 76 and 77: V4BEK Q σBEad = ,commQрσV 01 +
Page 78 and 79: 404 Shemetov, P. A., Bibik, I. P.wh
Page 80 and 81: thrмR iλ = 2 λ= 100⋅exp[ −(
Page 82 and 83: qLevel of average technical (theore
Page 84 and 85: .6670.05=0.35k1,05+D avet( s3≥ Kt
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Page 88 and 89: 414 Adewale, A., Olawale, O. O., Ma
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Page 104 and 105: 430 Kos, A., Dervarič, E.novega ve
Page 106 and 107: 432 Kos, A., Dervarič, E.diamond w
Page 108 and 109: 434 Kos, A., Dervarič, E.chines to
Page 110 and 111: 436 Kos, A., Dervarič, E.the best
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RMZ-M&G 2012, 59
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444 Lajovic, A.disc brakes, further
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446 Lajovic, A.Slika 2. Izrez iz Si
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448 Lajovic, A.Livne lonce smo na n
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450 Lajovic, A.Ingersol pa je bil z
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452 Lajovic, A.Med delavci, ki so b
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454 Lajovic, A.imel vsak delavec na
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456 Lajovic, A.Slika 5. Izdelki Že
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458 Lajovic, A.pa se ni najbolje iz
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460 Lajovic, A.za delo. Promet na z
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462 Lajovic, A.Sredi osemdesetih le
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464 Lajovic, A.njem delu forme. Na
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466 Lajovic, A.Enourni film je mars
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470 Medved, J., Rosina, A., Vončin
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472 Author’s IndexAuthor`s Index,
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RMZ-M&G 2012, 59
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Contents476Phase contrast method fo
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Contents47859/4Calculation of stres
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Instructions to authors481Compositi
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Instructions to authors483NAVODILA
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Instructions to authors485Knjige:Ro
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Template487TEMPLATEThe title of the
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Template489References (Times New Ro
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Template491Obstajata dve sprejemlji
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