Stability and settlement of AIT embankment supported by granular piles on subsiding ground | |
| Author | Huat, Sim Siang |
| Call Number | AIT Thesis no.GT-85-30 |
| Subject(s) | Piling (Civil engineering) 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 |
| Series Statement | Thesis ; no. GT-85-30 |
| Abstract | In Order to study the stability and settlement of AIT embankment supported by granular piles on subsiding ground, a full scale test embankment was constructed and supported by a total of 25 fully penetrating granular piles. The granular piles were installed by using non-displacement method with an average 0.33 m in diameter, 8.0 m in length spaced 1.50 m c/c on a triangular pattern. Prior to the construction, the test site was nervily instrumented to monitor the earth pressure, settlement, pore pressure and lateral ground movement due to the embankment construction. The bearing capacity of this study in increased about 4 times after the installation of the granular piles. The equilibrium method is recommended because it gave a reliable result with the observed settlement. It is found that observed settlement of soil is 6.8% higher than the settlement of granular pile, due to the eitects of the stress concentration beneath the embankment. The maximum earth pressure imposed on granular pile was obtained about two times greater than the maximum earth pressure from the surrounding soil. Therefore, stress concentration of 2 is recommend for the granular pile analysis. The rate of settlement of the embankment of the granular pile area was analyzed from the oedometer test results using DAVIS & POULOS methods of three-dimensional settlement analysis, one-dimensional method, and BARRON's method of vertical consolidation due to vertical and horizontal drainage. SKEMPTON & BJERRUM's method was also used for compaction. From the results of analysis, It is shown that the predicted time-settlement, relationship by using DAVIS and POOLOS method is slightly lower than the observed time settlement. The PROBISH program using total stress analysis was used to predict the minimum safety factor with respect to slope stability, The minimum safety factor is 1.89 which is compared with minimum safety factor of slope stability obtained from the treated ground - It was found that the safety factor of the treated ground by using average shear Strength method increased by 22.5& |
| Year | 1986 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GT-85-30 |
| Type | Thesis |
| School | School of Engineering and Technology |
| 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. ;Chandra, Sarvesh ;Rantucci, Giovanni ; |
| Scholarship Donor(s) | The King's Scholarship (Royal Thai Government); |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1986 |