Evaluation of engineering properties of rocks for design support system in the Huay Pai - Lam Pa Yang diversion tunnel | |
| Author | Singh, Vinod Kumar |
| Call Number | AIT Thesis no.GE-99-05 |
| Subject(s) | Rock mechanics--Research--Kalasin Tunnels--Thailand--Kalasin |
| 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-99-05 |
| Abstract | A study was made to evaluate rock properties and geological condition related to the construction of the Huay Pai - Lam Pa Yang diversion tunnel in northeastern Thailand. Rocks in the area were of Phra Wihan Formation of Khorat Groups, which mainly comprised of sandstone and siltstone beds. Laboratory tests on rock core samples indicated the sandstone is medium to high strength rock with uniaxial compressive strength from 56 MPa to 102 MPa. The siltstone is low strength rock with uniaxial compressive strength 31 MPa to 37 MPa. The strength was found increase with decrease in water content and porosity. The area was free of major geological structures. Joint systems in sandstone were mainly vertical sets while in the siltstone, inclined joints were more pronounced. Some portion of tunnel in the intake area is to be constructed underneath an existing Huay Pai reservoir. Some problems of high groundwater ingress may be expected in shallow beds of sandstone of which joints tend to be open. Rock mass quality was classified using the RMR and EPDC class, which were used as a basis to determine tunnel support. |
| Year | 2000 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GE-99-05 |
| 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) | Balasubramanium, A. S.;Seah, T. H;Miura, Kinya; |
| Scholarship Donor(s) | Government of Japan; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2000 |