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研究生： 廖國棟
Sunarya, Erik
論文名稱： 以環剪試驗儀探討邊坡受震時的穩定性研究
A New Ring Shear Apparatus to Investigate Slope Stability during Earthquake
指導教授： 吳建宏
Wu, Jian-Hong
林宏明
Lin, Hung-Ming
學位類別： 碩士
Master
系所名稱： 工學院 - 土木工程學系
Department of Civil Engineering
論文出版年： 2012
畢業學年度： 100
語文別： 英文
論文頁數： 179
外文關鍵詞： earthquake, slope stability, ring shear, direct shear, rainfall
相關次數： 點閱：170  下載：7 
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    • 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.

    ABSTRACT I ACKNOWLEDGEMENTS II TABLE OF CONTENTS IV LIST OF FIGURES VI LIST OF TABLES XII CHAPTER 1 INTRODUCTION 1 1.1 Background 1 1.2 Objective 2 1.3 Hypothesis 3 1.4 Methods 3 CHAPTER 2 LITERATURE REVIEW 5 2.1 Shear Strength of Rock and Soil 5 2.2 Conventional Laboratory Test of Shear Strength 6 2.3 Development of Ring Shear Test (Bishop et al., 1971) 7 2.4 Determination of Dynamic Loading from Earthquake 17 2.5 Hsiao-Lin Village 20 2.6 Tseng-Wen Reservoir 32 CHAPTER 3 METHODS 42 3.1 Physical Properties of Soil and Rock 42 3.1.1 Determination of Specific Gravity 42 3.1.2 Particle Size Analysis 44 3.1.3 Atterberg Limit 47 3.1.4 Determination of Elastic Constants of Rock 52 3.1.5 Slake Durability Test 54 3.1.6 Uniaxial Compressive Test 55 3.2 Direct Shear Test 56 3.3 Ring Shear Test 59 3.3.1 Ring Shear Test for Static Case 62 3.3.2 Ring Shear Test for Dynamic Case 63 CHAPTER 4 EXPERIMENTAL RESULTS 64 4.1 Hsiao-Lin Case 64 4.1.1 Specific Gravity 64 4.1.2 Particle Size Analysis 67 4.1.3 Atterberg Limit 77 4.1.4 Summary of Soil Physical Properties 80 4.1.5 Elastic Constants of Rocks 83 4.1.6 Slake Durability Test 85 4.1.7 Uniaxial Compressive Test 86 4.1.8 Direct Shear Test 93 4.1.9 Static Ring Shear Test 98 4.1.10 Dynamic Ring Shear Test 104 4.2 Tseng-Wen Case 128 4.2.1 Specific Gravity 128 4.2.2 Particle Size Analysis 129 4.2.3 Atterberg Limit 135 4.2.4 Summary of Soil Physical Properties 138 4.2.5 Elastic Constants of Rocks 139 4.2.6 Slake Durability Test 140 4.2.7 Uniaxial Compressive Test 141 4.2.8 Direct Shear Test 146 4.2.9 Static Ring Shear Test 150 4.2.10 Dynamic Ring Shear Test 157 4.3 Discussion 170 CHAPTER 5 CONCLUSION AND RECOMMENDATIONS 174 5.1 Conclusion 174 5.2 Recommendations 175 REFERENCES 177

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