Cyclic behaviour of overconsolidated clay | |
| Author | Tabe, Genta |
| Call Number | AIT Thesis no.GT-86-03 |
| Subject(s) | Strains and stresses Clay--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 behaviour of over consolidated clays under two-way cyclic loading was studied in this thesis. A series of static and cyclic triaxial tests were carried out on undisturbed Bangkok Soft Clay . The samples were isotropically reconsolidated to the appropriate maximum consolidation pressure and swelled back to the same final consolidation pressure of 2 .5 t/m to get the overconsolidation ratio of 4, 8, and 16. The results of cyclic loading tests showed that positive excess pore pressures could develop on the samples of OCR = 4, though only negative excess pore pressures could develop on the samples of OCR = 16. Two ways of failure processes, namely the ' sudden failure' and the 'gradual failure, were found and explained by means of the development of excess pore pressures. It was observed that independent of any cyclic stress ratio, migrations of the cyclic stress paths for the over consolidated samples were almost negligible even if the samples had failed or not. The failure mechanism was studied in terms of total cyclic strains, the 'stress level' (ANDERSEN, 1975), and 'cyclic strain rates' . Finally it was found that the interpretation in terms of the 'cyclic strain rates' was most adequate to analyze the failure mechanism of the over consolidated clays under two-way cyclic loading. |
| Year | 1987 |
| 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) | Balasubramaniam, A.S. |
| Examination Committee(s) | Bergado, Dennes T. ;Towhata, I. |
| Scholarship Donor(s) | Royal Thai Government |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1987 |