| Author | Anuchit Uchaipichat |
| Call Number | AIT Thesis no. GE-97-18 |
| Subject(s) | Clay--Thailand--Bangkok--Testing
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| 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 | The stress-strain behavior of Soft Bangkok clay within the State Boundary Surface was studied by carrying out isotropically consolidated drained (CID) tests. The experiments were performed by conducting fifteen tests of overconsolidated specimens and one test of normally consolidated specimen. All overconsolidated specimens were performed under different applied stress paths at the same OCR of 2.75. The pre-shear void ratios were within a narrow band of 1.73 to 1.89. The slope of isotropically consolidated line (A.) and slope of isotropically swelling line(K) values are 0.54 and 0.128, respectively. The M value corresponding to the peak deviator stress and peak stress ratio conditions is 0.93. The volumetric yield locus, the Hvorslev Surface and the tension failure line are evaluated and plotted in (p, q) plot. In the (pipe, qlpe) plot, the failure points trend to cluster around the Critical State point. Based on the total and plastic strains, the contours of strain can be presented in the normalized (pipe, qlpe) plot. From the total volumetric strain contours plot, the area within the State Boundary Surface can be divided into two zones. The volumetric strain in zone I is positive while the volumetric strain is negative in zone IL Based on the plastic volumetric strain, the area within the State Boundary Surface can be divided into three zones. In zone I, the plastic volumetric strain is zero; therefore, the volumetric strain occurred in this zone is purely elastic. This behavior supports the elastic wall concept of Cambridge group. The plastic volumetric strain in zone II and Zone III are positive and negative, respectively. Stress contours are also plotted on the strain paths. |
| Year | 1998 |
| Type | Thesis |
| School | School of Civil Engineering |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical Engineering (GE) |
| Chairperson(s) | Balasubramaniam, A. S.; |
| Examination Committee(s) | Tian Ho Seah ;Shibuya, Satoru ;Lin, Der Guey; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology |