A Study of Lean Construction Practices in Gaza Strip

More documents

Recommendations

Info

4.2 Project Activities Lean construction has been applied on the following project activities in mobilization, plain concrete, foundation, neck column, isolation, back filling, ground beam works, column for ground floor, ground floor, ground floor slab, first floor column, second floor slab, building for ground floor, and building works for first floor. The execution of the project is divided into three blocks A, B and C. Appendix (E). 4.3 Lean Criteria Procedure The procedure of applying the lean principles is as follows: • Defining the customer, the customer value, all resource required for construction, and all activities required for construction. • Identify non value added process (steps, time). • Removing or reducing the wastes in process by using the standardization and the five why tools to identify the cause of failure. • Identifying non value added activities by applying the points in figure 4.1 on the construction of El-Nasser New Pediatric Hospital project. • Improving the project until reaching perfection. The above procedures are applied to the project as follows: The customer is the Ministry of Health. The value of customer is to construct the project with the same duration and cost and specification of contract. Only the following eight points in Figure (4.1) from the ten points in section (3.3) were applied to the project because it is a completed construction project. 36
Setting the process durations of the improvement candidates to zero (one at a time) Producing simulation result(run the simulation) Sorting the candidates in order of their significance to the simulation model Looking for practical activity reduction solutions for the candidates, starting with the activity that has the greatest potential. Editing the simulation model to reflect zero-time on the biggest non value added process. Producing simulation results (run the simulation) Looking for practical solutions to improve production activities. Only after the lean concepts (value-adding activities and pull-driven flow) have been introduced to the model should the improvement be focused on production activities. Introduce buffers to compensate for increased model variability and for differing production rates of linked operations. Conclusion and recommendation Figure 4.1 Procedure of the application of lean principles 37
Page 1: The Islamic University of Gaza Dean
Page 4 and 5: Acknowledgment I would like to expr
Page 6 and 7: ABSTRACT This research deals with t
Page 8 and 9: 2.5.6 Increase Output Flexibility .
Page 10 and 11: Appendices Appendix (A): Daily Repo
Page 12 and 13: List of Tables Table 2.1: Conceptua
Page 14 and 15: List of Figures Figure 2.1: Reducti
Page 16 and 17: 1.1 Statement of the Problem Most o
Page 18 and 19: 2.1 Lean Construction History Chapt
Page 20 and 21: 2.3 Impact of Lean Construction Acc
Page 22 and 23: Table 2.1 Conceptualization of lean
Page 24 and 25: for measuring the percent plan comp
Page 26 and 27: 2.5.6 Increase output flexibility F
Page 28 and 29: � The more wastes inherent in the
Page 30 and 31: 3. System requires the need to deve
Page 32 and 33: the work flow, material flow, produ
Page 34 and 35: • Straighten Next, materials were
Page 36 and 37: Material Productivity = Total Outpu
Page 38 and 39: investigation showed that 25 percen
Page 40 and 41: 7. Poor technology of equipment. 8.
Page 42 and 43: 2. Unnecessary material handling. 3
Page 44 and 45: inventory (Wrong storage of materia
Page 46 and 47: Main Activity Mobilization and exca
Page 48 and 49: 4. Sort the candidates in order of
Page 52 and 53: Table 4.2 represents the resources,
Page 54 and 55: Main Activity Slab work Building wo
Page 56 and 57: 4.4.1 Mobilization and excavation T
Page 58 and 59: 4.4.4 Neck column Table (4.6) shows
Page 60 and 61: 4.4.7 Ground beam The twelve proces
Page 62 and 63: 4.4.10 Ground floor slab The eleven
Page 64 and 65: No. 9 10 11 Table 4.14 Non-value ad
Page 66 and 67: 4.5 Remove or Reduce the Influence
Page 68 and 69: The result by using arena simulatio
Page 70 and 71: Table 4.17 Simulation results No. A
Page 72 and 73: Table 4.17 Simulation results (Cont
Page 74 and 75: 4.5.3 Foundation Table (4.20) shows
Page 76 and 77: 4.5.7 Ground beam Table (4.24) show
Page 78 and 79: 4.5.11 Column first floor Table (4.
Page 80 and 81: 4.6 Identify the Cause of Waste Tab
Page 82 and 83: Percent of value adding time 35% 30
Page 84 and 85: Table 4.33 Total project duration N
Page 86 and 87: Then, the processes with the greate
Page 88 and 89: number of workers to 12 workers sho
Page 90 and 91: Activity Process Ground floor Colum
Page 92 and 93: Actual project duration was 6000 ho
Page 94 and 95: Date Process Assigned Process Compl
Page 96 and 97: 5.1 Conclusion Chapter Five Conclus
Page 98 and 99: References 1. Abudallah Fawaz , (20
Page 100 and 101:
27. Graham, P. and Smithers, G., (1
Page 102 and 103:
51. Serpell, A.; Venturi, A. and Co
Page 104 and 105:
Appendices (A) Daily report Date Ac
Page 106 and 107:
04/09/2003 06/09/2003 07/09/2003 08
Page 108 and 109:
18/12/2003 20/12/2003 21/12/2003 22
Page 110 and 111:
11/04/2004 12/04/2004 13/04/2004 14
Page 112 and 113:
Appendix (B) Arena Simulation Compu
Page 114:
Appendix (C ) Simulation result of
show all

A Study of Lean Construction Practices in Gaza Strip

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?