| Author | Chang, Chih Chieh |
| Call Number | AIT Thesis no.GT-84-07 |
| Subject(s) | Soil mechanics--Thailand--Rangsit
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| 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 | Index tests, consolidation tests and specific gravity tests together with three field tests, namely pressuremeter, plate load test and screw plate load test, were carried out at four sites in the AIT campus. In each site three pressuremeter tests, two plate load tests and two screw plate test were performed. In the first part of this study, laboratory test results from index properties and consolidation test were correlated with the results of prssuremeter tests. It was found that preconsolidation pressure from consolidation test is approximately equal to the yield pressure from pressurementer test. Good correlations were found between the plastic index and undrained shear strength using Gibson and Anderson's method, and between net limit pressure obtained by OYO's (1979) method and Menard's (1961) method... In the second part, a comparison of test results in the weathered clay layer from plate load test and pressuremeter test was made. It was found that undrained shear strength, and ultimate bearing capacity from pressuremeter is one to three time higher than those from plate load test. It may be due to the spacing of fissures in relation to the size of the loading device for plate load test is smaller than those for pressuremeter test. Because of softening and disturbance during drilling the borehole the undrained modulus from pressuremeter is less than those from plate load test. It was also found that all these three parameter, bearing capacity, undrained shear strength and undrained modulus, obtained from both of these two tests decreased with depth. Finally, in the third part, test results from screw plate load test conducted in soft clay layer was compared to the results from pressuremeter test. It was found that both tests give close values of bearing capacity. The undrained shear strength from screw plate load test is about 75% to 85% of those from pressuremeter test using Gibson's and Anderson's method. Undrained modulus from pressuremeter test is little lower than secant modulus from screw plate load test but it was much lower than tangent modulus from screw plate load test. It also found that the undrained shear strength and bearing capacity values from screw plate test were not much influenced by different type of load increment. |
| Year | 1985 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Geotechnical and Transportation Engineering (GT) |
| Chairperson(s) | Bergado, Dennes T. |
| Examination Committee(s) | Balasubramaniam, A.S. ;Rantucci, Giovanni |
| Scholarship Donor(s) | Republic of China |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1985 |