| Author | Danzuka, Masanori |
| Call Number | AIT Thesis no.GT-84-10 |
| Subject(s) | Embankments
|
| 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 | Probabilistic evaluation of settlement and stability in AIT test embankment has been carried by using the procedures currently developed. Soil data summarized by the previous researchers have been utilized in this study. The profile of sand and silt lenses, obtained by the field research, are applied to seek the effect on permeability in the soft clay. Three to four times increase in coefficient of permeability is recognized in soft clay layer compared to that obtained from laboratory test data. The influence of the lenses becomes more prominent as the effective stress in the compressible layer increases. then, the rate of settlement is evaluated under two-dimensional plane strain condition by the method proposed by Lacasse. The settlement calculated based on Skempton and Bjerrum method shows a reasonable agreement with the observed value. Stability analysis, carried by two different methods, namely : sharp's three-dimensional analysis and plane strain analysis using two--dimensional Nearest-Neighbor method, indicates that three-dimensional procedures appear to be a more rational way to evaluate embankment stability. In this study, the probability of failure of AIT test embankment is evaluated to be 7.66 x 10-41 from Sharp's method and 2.55x10-49 from Nearest-Neighbor method. Including 5% of model error, the probability of failure is 2.3x10-5 from Sharp's method and 6.89x10-7 from Nearest-Neighbor method. |
| 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. ;Yamada, Yasuo |
| Examination Committee(s) | Chandra, Sarvesh |
| Scholarship Donor(s) | The Government of Japan |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1985 |