| Author | Koson Kongdang |
| Call Number | AIT Thesis no. GE-95-27 |
| Subject(s) | Shields (Geology)
|
| Note | A thesis submitted in partial fulfilment of the requirements for the degree of Master of Science, School of Civil Engineering |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. GE-95-27 |
| Abstract | In this study the performance of the Earth Pressure Balance Shield in Bangkok Waste
Water Tunnel Project Stage-1 was evaluated and summarized. The activities associated with the
tunnel construction by using EPBS was analyzed with respect to the time used in each activity,
the average of excavation time and the delay time were 51.49% and 48.51 % respectively. The
penetration rate and the advance rate were 1.57 m/hr and 8.4 m/day respectively . Jack thrust
capacity used was 15 .25% of the design. The tunnel construction procedure by using EPBS has
been studied including the associated shaft construction. Ground surface settlement was
observed along the tunnel route respected to the shield advancement. The maximum ground
surface settlement was 10 - 30 mm in stiff clay and 20 - 40 mm in soft clay layer. The ground
loss was up to 5% due to the low efficiency of grouting. As a result from this study, the
performance of EPBS was given the high progressive work, less of problem during construction
and induced the small amount of ground surface settlement, therefore the EPBS was suitable for
tunnel construction in Bangkok subsoils. |
| Year | 1996 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GE-95-27 |
| Type | Thesis |
| School | School of Civil Engineering |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical Engineering (GE) |
| Chairperson(s) | Noppadol Phien-wej ; |
| Examination Committee(s) | Balasubramaniam, A.S. ;Sugimoto, M. |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 1996 |