| Author | Pranai Satyavanija |
| Call Number | AIT Thesis no. 368 |
| Subject(s) | Clay--Thailand--Bangkok
Clay--Testing
|
| Note | A thesis submitted in partial fulfillment of the requirements
for the degree of Master of Engineering at the Asian Institute of Technology, Bangkok, Thailand. |
| Publisher | Asian Institute of Technology |
| Abstract | An experimental investigation was conducted to study the
shear strength characteristics of Bangkok Clay under vibratory
normal loading. Undisturbed samples were taken from depths of 8 to 12 ft, 15 to 17 ft and 24 to 26 ft below the ground surface at the new AIT site at Rangsit. The samples from a depths of 8 to 12 ft was weathered clay, and those taken from depths of 15 to 17 ft and 24 to 26 ft were soft clay. Both undisturbed and remolded samples were tested in a strain-controlled direct shear machine under vibratory normal loading.
The test results show that for the undisturbed samples, the shear strength decreased with increasing vibration energy.
The vibration energy depended on the vibration parameters,
frequency, maximum acceleration, time of vibration prior to shear and vibratory stress. It was concluded that the
influence of vibration energy on the weathered clay was more
than that on the soft clay. The behavior of the undisturbed
clay was explained by the failure of interparticle bonds and
particle reorientation by vibration energy. The magnitude of the decrease depended on the amount of vibration energy and
the stability of the soil structure.
For the remolded samples, the soil was not appreciably
affected by the vibration energy for either weathered or soft
clay. No definite trend in the data could be established
because the loads were too small to be measured and the vibration of shear force was almost below the resolution of the measuring equipment. |
| Year | 1970 |
| Type | Thesis |
| School | Student Research Before 1980 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Nelson, John D. |
| Examination Committee(s) | Chai Muktabhant ;Brand, E.W. |
| Scholarship Donor(s) | Asian Institute of Technology |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 1970 |
