| Author | Abeysinghe, A. M. K. B. |
| Call Number | AIT Thesis no. GE-95-24 |
| Subject(s) | Tunneling
|
| Note | A thesis submitted in pa1tial fulfillment of the requirement for the degree of Master of Science, School of Civil Engineering |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. GE-95-24 |
| Abstract | This study mainly focuses on a new outfall from existing holding basin to the sea at Thai Oil
Refinery Plant, Sriracha, Chonburi. It is consist of small shallow shotcrete tunnel in a strongly jointed
weathered qua1tzite, named as NOS tunnel. The excavation was carried at by using roadheader and
shotcrete as principle supp01t member. It is the first tunnel to be constructed with this technique in
Thailand. From Sta.0+560 to Sta.0+375 the NOS tunnel consist of moderately weathered qua1tzite as
full face rock and other parts with mixed face condition having soil and highly to completely weathered
qua1tzite. Slow to fast raveling ground response were observed in mixed face whereas full face rock
showd firm ground response. The ground movements drastically increased due to high water pressure
which resulted from heavy rain. Full face rock gave rise to lowered surface settlement values while
mixed face condition give comparatively higher values and exceed allowable settlement value of 2mm
Two problem areas occurred during tunnel excavation a roof collapse due to weak soft strata and face
collapse almost ve1tical joint plane which is filled with clay/silt gouge. The overall pe1formance of
shotcrete tunnelling in shallow weathered rock were discussed in the research study. |
| Year | 1996 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GE-95-24 |
| 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) | Prinya Nutalaya ;Balasubramaniam, A.S. |
| Scholarship Donor(s) | HM. King's Scholarship ; |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 1996 |