| Author | Pichaya Oungsangkoon |
| Call Number | AIT Thesis no. GE-98-03 |
| Subject(s) | Tunneling--Thailand--Bangkok
Underground construction
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of
Engineering, School of Civil Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | This research reviewed geotechnical aspects of underground works related to
tunnelling and station construction of the Initial System MRT Project. Properties of
subsoil through the tunnel alignment were summarized. Top-down method is performed
in station construction. Station walls used diaphragm wall to support the surrounding
soils. In tunnel works, eight EPB shields are adopted for excavation of the running
tunnels. Tunnel lining consists of five and six regular precast concrete segments. The
design method of segmental lining is of the Muir Wood (1975). Consolidation of the clay
layer causes differential settlement of the underground structures founded on different
foundation depths. The settlement prediction methods are based on the regression of land
subsidence data and the consolidation compression/swelling characteristics of the clays.
This research summarizes the results of differential settlement prediction that is expected
between tunnel connections with other structures founded at a shallower or deeper depth.
The evaluation of protection requirement followed damage classification given by
Burland ( 1997) and Boscadin and Cording (1989). Pile foundations of canal bridge and
overpass bridge obstructing the routes of bored tunnels, are underpinned with new piles.
Ground treatment utilized in construction mainly consists of jet grouting in order to
control the problems of soft ground. |
| Year | 1999 |
| Type | Research Study Project Report (RSPR) |
| School | School of Civil Engineering |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical Engineering (GE) |
| Chairperson(s) | Noppadol Phienwej; |
| Examination Committee(s) | Balasubramaniam, A. S.;Der-Guey, Lin; |
| Scholarship Donor(s) | Asian Institute of Technology Partial Scholarship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1999 |
