| Author | Amarasinghe, R. M. U. U. B. |
| Call Number | AIT Thesis no. GT-92-28 |
| Subject(s) | Clay--Thailand--Bangkok--Testing--Statistical methods
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| Note | A thesis submitted in partial fulfillment of the requirements for the Degree of Master of Science, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. GT-92-28 |
| Abstract | In this research, a particular emphasis was given on Bangkok first stiff clay layer and an attempt was made to collect and compile currently available data of geotechnical and physical properties of Bangkok stiff soils from literature sources available in the AIT Campus. Five generalized sub-soil profiles were constructed along North-South and West-East directions. Contour plots were drawn to understand variations of depth and thickness of the first stiff clay layer. Based on pre-determined eleven grid areas of 9.0 km2, an analysis was carried out on the physical as well as geotechnical characteristics of the Bangkok first stiff clay layer. The results showed that depth of first stiff clay layer increases towards the Gulf of Thailand from about 9m to 15m. The top surface of the layer is undulatory. Which probably indicates depositional and erosional effects. The general soil colour as well as soil texture of the layer vary in a wide range. This may indicate that this layer must have been exposed to the atmosphere in the geological past to produce secondary colours and wide range of textural features due to processes like chemical leaching, precipitation, weathering, dessication, lateritization etc. The thickness of the layer ranges from about 5m to 14m. The basic geotechnical properties like natural moisture content, plastic limit and liquid limit generally decrease with the depth while total unit weight, undrained shear strength and SPT, N value generally increase with the depth. This layer falls above the A-line of the plasticity chart and can be given group symbols CL and CH. |
| Year | 1992 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GT-92-28 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical and Transportation Engineering (GT) |
| Chairperson(s) | Noppadol Phien-wej; |
| Examination Committee(s) | Prinya Nutalaya;Balasubramanium, A.S.; |
| Scholarship Donor(s) | Federal Republic of Germany (DAAD); |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1993 |