| Author | Sommai Chavalitjiraphan |
| Call Number | AIT Thesis no. GT-88-21 |
| Subject(s) | Clay--Thailand--Bangkok--Analysis
|
| Note | A thesis submitted in partial fulfillment of the requirements
for t h e degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. GT-88-21 |
| Abstract | In this study the failure of a canal cut slope and the
stability of non-improved trial cut slope proposed by JICA, at
Charoenraj Pumping Station of RID located at Samut Prakan
Province, were investigated. The in situ undrained shear
strengths of the clay from various test methods and their
correlations were obtained. The undrained shear strength and
shear strength parameters of post excavation condition of the
clay were determined in the laboratory by Recompression
Technique of CKoU-TC and CKoU-TE tests and then were applied
in the stability analysis. Simplified Bis hop Method was used
for stability analysis. For short-term condition three
approaches of undrained shear strength determination were
used, i.e. empirical correlation approach similar to LADD's
USA method, BJERRUM's correction approach, and AAS's
correction approach. While for long-term condition two
analytical methods, i.e. effective stress analysis (ESA) and
undrained strength analysis (USA) were used. The long-term
factor of safety of cut slope in the clay obtained from ESA
method is considerably too high compared to that from USA
method. A factor of safety obtained from AAS's correction
approach is lower than factors of safety obtained from ESA and
USA methods. The construction record and the analysis
indicated that the failure of the canal slope was due to
surcharge near the slope. The USA method yields a factor of
safety for the condition at failure equal to 1.02. For the
proposed non-improved trial slopes, (a) for the 1:4 proposed
slope the AAS's correction approach and BJERRUM's correction
approach suggest that the slope fails in short- term condition
and (b) for the 1:6 proposed slope the USA method suggests a
stable long-term condition with factor of safety of only 1.14,
while the AAS's correction approach suggests failure condition
in long-term. |
| Year | 1989 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GT-88-21 |
| 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) | Noppadol Phien-wej ; |
| Examination Committee(s) | Bergado, Dennes T. ;Rantucci, Giovanni
|
| Scholarship Donor(s) | The Government of Australia ; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1989 |