Deformation and strength characteristics of first sand layer in AIT campus | |
| Author | Lin, Lie-pyng |
| Call Number | AIT Thesis no. GT-83-02 |
| Subject(s) | Strength of materials Sand--Testing |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | The first sand layer in Bangkok area is encountered from depth of 15 meter to depth of 20 meter. Because the high Compressibility of the top soil layer named Bangkok Clay, the piles are usually penetrated through the top layer soil to the first sand layer or to the secondary sand layer of which depth is about 30 meter. Although designers have use the estimated properties of the sand from standard penetration tests, it is needed to determine the stress-strain behavior and mechanical parameters more precisely employing laboratory tests such as triaxial test. On this point of view, undisturbed samples of the first sand layer were obtained using a fixed piston with thin wall tube. After drainage the samples were freezed to provide high quality undisturbed specimens for triaxial tests. From the laboratory tests on the undisturbed specimens, relative density of 80+-6% and internal friction angle of 37.4+-4.3 degrees were obtained. The value of the Young's modules was given as E50=28-9 03 (MPa) where the O3 is expressed in 100 KPa. All the values mentioned above are compared with the estimated values from the standard penetration tests, which showed a good agreement. For predicting the stress-strain behavior, the KONDNER's model can be employed with night accuracy. |
| Year | 1984 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical and Transportation Engineering (GT) |
| Chairperson(s) | Rantucci, Giovanni |
| Examination Committee(s) | Prinya Nutalaya ;Bergado, Dennes T. ;Chandra, Sarvesh ;Yamada, Yasuo |
| Scholarship Donor(s) | Government of R.O.C. |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1984 |