| Author | Wu, Yuh-ming |
| Call Number | AIT Research Report no.41 |
| Subject(s) | Clay--Thailand--Bangkok
Shear strength of soils
|
| Note | Engineering Characteristics of Undisturbed Soils in the Bangkok Area Phase Report No. 12 |
| Publisher | Asian Institute of Technology |
| Abstract | This thesis presents the results of an investigation on the
variation of the in-situ undrained shear strength and pore pressure of Bangkok Clay at Rangsit with depth. Undisturbed samples were taken from 1.5 m to 10 m and 12.S m to 14 m by continuous sampling the stress
strain and strength properties were determined by anisotropic consolidated undrained triaxial test with no lateral strain (K ) condition. In-situ effective overburden pressure as vertical consolidation pressure and hydrostatic pressure as back pressure were used in the tests.
Nonhomogeneity of the soil samples was the main reason behind the scattering of some of the test results. It was found that the normalized stress-strain relationships of all the soil samples throughout the weathered and soft zones did not obey the "normalized" behavior. The maximum obliquity ratio was reached at a strain slightly earlier than the maximum deviator stress
for the Weathered Clay. For the Soft Clay, the maximum obliquity was reached at a strain coincided fairly well with the maximum deviator stress. For the Stiff Clay, the obliquity ratio was reached much earlier than the deviator stress. The normalized stress-strain curves and the effective stress
path characteristics indicated that both the Weathered Clay and Soft Clay were slightly overconsolidated and the Stiff Clay was heavily overconsolidated.
The undrained shear strength as a function of depth was found to
be that the strength decreased with depth for the Weathered and Stiff Clay, but increased with depth for the Soft Clay. |
| Year | 1973 |
| Type | Research Report |
| School | Student Research Before 1980 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | AIT Research report (Year <=1980) |
| Chairperson(s) | Moh, Za-chieh |
| Degree | Research Report (M. Eng). - Asian Institute of Technology, 1973 |
