A Study of Lean Construction Practices in Gaza Strip

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2.5.6 Increase Output Flexibility ............................................................ 12 2.5.7 Increase Process Transparency ...................................................... 12 2.5.8 Focus Control on the Complete Process........................................ 13 2.5.9 Build Continuous Improvement into the Process .......................... 13 2.5.10 Balance Flow Improvement with Conversion Improvement....... 14 2.5.11 Benchmark................................................................................... 14 2.6. Tools of Lean Construction 2.6.1 Just in Time (JIT).......................................................................... 15 2.6.2 Last Planner System....................................................................... 16 2.6.3. Increased Visualization................................................................. 18 2.6.4. First Run Studies........................................................................... 19 2.6.5. Daily Huddle Meetings................................................................. 19 2.6.6. The 5s Process .............................................................................. 20 2.6.7. Fail-Safe for Quality ..................................................................... 21 2.6.8 Productivity Standardization.......................................................... 21 2.6.9 The Five Why's ............................................................................... 22 2.7 Construction Waste..................................................................................... 22 2.8 Construction Waste in Gaza Strip............................................................... 25 2.9 Summary ..................................................................................................... 29 Chapter Three: Methodology 3.1 Research Strategy ........................................................................................ 31 3.2 Data Collection ............................................................................................. 31 3.3 Application of Lean Principles in Construction ........................................... 33 Chapter four: Application 4.1 Project Description ....................................................................................... 35 4.2 Project Activities........................................................................................... 36 4.3 Lean criteria Procedure................................................................................. 36 4. 4 Non Value Added Process Identification..................................................... 41 4 .4.1 Mobilization and Excavation Activity............................................. 42 4.4.2 Plain Concrete................................................................................... 42 4.4.3 Foundation Activity.......................................................................... 43 4.4.4 Neck Column Activity...................................................................... 44 VI
4.4.5 Isolation ............................................................................................ 45 4.4.6 Backfilling ........................................................................................ 45 4.4.7 Ground Beam ................................................................................... 46 4.4. 8 Ground Floor Column ..................................................................... 46 4.4. 9 Ground Floor ................................................................................... 47 4.4.10 Ground Floor Slab ......................................................................... 48 4.4.11 First Floor Columns........................................................................ 48 4.4.12 First Floor Slab ............................................................................... 49 4.4.13 Ground Floor Building.................................................................... 50 4.4.14 First Floor Building ........................................................................ 51 4.5 Remove or Reduce the Influence of Waste .................................................. 52 4.5.1 Mobilization and Excavation Activity................................................. 59 4.5.2 Plain Concrete...................................................................................... 59 4.5.3 Foundation ........................................................................................... 60 4.5.4 Neck Column ....................................................................................... 60 4.5.5 Isolation ............................................................................................... 61 4.5.6 Backfilling ........................................................................................... 61 4.5.7 Ground Beam....................................................................................... 62 4.5.8 Column Ground Floor.......................................................................... 62 4.5.9 Ground Floor........................................................................................ 63 4.5.10 Ground Floor Slab ............................................................................. 63 4.5.11 Column First Floor............................................................................. 64 4.5.12 First Floor Slab .................................................................................. 64 4.5.13 Building in Ground Floor .................................................................. 65 4.5.14 Building in First Floor ....................................................................... 66 4.6 Identify the Cause of Wastes ........................................................................ 66 4.7 Finding the Largest Non-Value Added Activity........................................... 69 4.7 Application of Lean Construction for Future Construction Project ............. 79 Chapter Five: Conclusions and Recommendations 5.1 Conclusions................................................................................................... 82 5.2 Recommendations…..................................................................................... 83 References...................................................................................................................... 84 VII
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 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 50 and 51: 4.2 Project Activities Lean constru
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
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A Study of Lean Construction Practices in Gaza Strip

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