Stability analysis of earth dams and braced excavation :case histories in Taiwan | |
| Author | Huang, Chien-lung |
| Call Number | AIT Thesis no.GT-80-05 |
| Subject(s) | Soil mechanics--Taiwan Soil mechanics--Taiwan |
| Note | A thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | This thesis consists of two parts. The first presents a summary of stability analysis of the earth dam. For multi-zones earth dam, the method of slices, applying the principles of effective stress, is considered to be generally the most applicable slip circle method of analysis. Two zones earth dams are presented and they involve application of this general method with the effect of side forces between the adjacent slices ignored. The upstream slope has been analyzed for the end-of-construction and drawdown conditions, and downstream slope, for the end-of-struction and steady seepage conditions. In addition, the effects due to earthquake are evaluated. The second part reviews the common failure modes for the bracing system of excavation, and the earth pressures on the bracing system. Two examples of failure of braced excavation in Taiwan are discussed. One is concerned with bottom heave failure and the other is due to piping failure. Bottom heave during excavation in clayed soils is influenced by the shear strength and loading history of clay. Piping occurs if the water head is sufficient to produce critical velocities in cohesionless soils. |
| Year | 1981 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical and Transportation Engineering (GT) |
| Chairperson(s) | Tomiolo, Andrea |
| Examination Committee(s) | Balasubramaniam, A.S. ; Ohta, Hideki |
| Scholarship Donor(s) | Government of the Republic of China |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 1981 |