Settlement analysis of the Nong Ngoo Hao test embankment by stress path method | |
| Author | Yuen Kai-sang |
| Call Number | AIT Thesis no. 920 |
| Subject(s) | Strains and stresses Soil consolidation International airports--Thailand--Nong Ngoo Hao International airports--Thailand--Nong Ngoo Hao |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering at the Asian Institute of Technology, Bangkok, Thailand. |
| Publisher | Asian Institute of Technology |
| Abstract | Settlements at two locations on the centerline of the Nong Ngoo Hao test embankments were analyzed by stress path method. Several series of stress path tests were performed according to the stress changes as computed by three different methods of stress analysis, namely: elastic theory without rigid boundary (Gray\'s formula~), elastic theory with rigid boundary (Poulos chart), and finite element method. Immediate settlements and rate of settlements of these two points were then analyzed accordingly. The results obtained by using the Gray\'s formulae for stress distribution gave good prediction of the surface settlement. However, it was suspected that compensating errors· may have contributed to the agreement. By dividing the entire compressible soil stratum into separate layers, the results from the finite element method gave the best estimation. Better results could also be expected if modified soil parameters were used by taking into consideration of soil yielding and effect of consolidation. The method based on elastic theory with rigid boundary condition highly overestimated the settlement be cause of yielding of the test specimens. No conclusions could be made in regard to the accuracy of the predicted ultimate settlement because of the short time period available for field record. |
| Year | 1975 |
| Type | Thesis |
| School | Student Research Before 1980 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Moh, Za-Chieh ;Balasubramaniam, A.S. |
| Examination Committee(s) | Brand, E.W. |
| Scholarship Donor(s) | Canadian Government |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 1975 |