A New Ring Shear Apparatus to Investigate Slope Stability during Earthquake
| Autor: | ErikSunarya, 廖國棟 |
|---|---|
| Rok vydání: | 2012 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 100 Since many years ago, solving earthquake problems has been an interest for researchers and engineers. One of the earthquake problems that is discussed in this research is slope stability caused by earthquake during heavy rainfall. This problem is solved by laboratory test approach. A new ring shear apparatus is used to determine the shear strength of slope and simulate the earthquake as dynamic loading during heavy rainfall. There are two sites that used as study cases for this research. First, the slope in Hsiao-Lin did not fail during Chi-Chi earthquake and Heng-Chun earthquake. Second, the slope in Tseng-Wen failed during Chia-Hsien earthquake. The result of the ring shear tests are analyzed and compared to the facts of these two sites. For Hsiao-Lin case, the ring shear test result matches the fact. For Tseng-Wen case, the ring shear test result is different with the fact. Considering the problems that come from the specimen and apparatus condition, the ring shear apparatus can still be used but need to be improved. Actually, ring shear test is not easy to be done so the conventional direct shear test is also done to check whether direct shear test can solve the same problem. Based on the two study cases, the direct shear test results is similar to ring shear test results for Hsiao-Lin case but different for Tseng-Wen case. Considering the sample condition, the direct shear test can practically be used for solving this problem. The advantages of the ring shear test that direct shear test can’t do are measuring pore pressure and determining the soil behavior and shear strength during large displacement in saturated condition. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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