| 剪应变增量在堆积体边坡稳定性研究中的应用 |
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| 引用本文： | 丁秀美,刘光士,黄润秋,严明,林锋,郑达. 剪应变增量在堆积体边坡稳定性研究中的应用[J]. 地球科学进展, 2004, 0(Z1) |
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| 作者姓名： | 丁秀美 刘光士 黄润秋 严明 林锋 郑达 |
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| 作者单位： | 成都理工大学地质灾害防治与地质环境保护国家专业实验室 中煤国际工程集团重庆设计研究院 成都理工大学地质灾害防治与地质环境保护国家专业实验室 四川 成都 四川 成都 |
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| 摘 要： | 堆积体边坡是我国西南地区普遍可见的一类边坡,而此类边坡的失稳(特别是滑动失稳),一般沿剪应变最大的部位发生。利用快速拉各朗日程序(FLAC-3D),对澜沦江中游某堆积体边坡划分足够细化的单元,通过最大剪应变增量找出坡体内薄弱部位,即最容易失稳的部位,结合变形特征对其稳定性进行了评价;同时与“最危险滑弧”搜索的最危险滑动范围对比表明,二者具有较好的一致性。
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| 关 键 词： | 堆积体边坡 稳定性 剪应变 FLAC 滑面搜索 |
SHEAR STRAIN INCREMENT APPLYING IN STABILITY STUDYING OF DEBRIS SLOPE |
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| DING Xiu-mei,LIU Guang-shi,HUANG Run-qiu,YAN Ming,LIN Feng,ZHENG Da. SHEAR STRAIN INCREMENT APPLYING IN STABILITY STUDYING OF DEBRIS SLOPE[J]. Advances in Earth Sciences, 2004, 0(Z1) |
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| Authors: | DING Xiu-mei LIU Guang-shi HUANG Run-qiu YAN Ming LIN Feng ZHENG Da |
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| Affiliation: | DING Xiu-mei~1,LIU Guang-shi~2,HUANG Run-qiu~1,YAN Ming~1,LIN Feng~1,ZHENG Da~1 |
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| Abstract: | Debris slopes are ubiquitous in Southwest China, and engineering practices have indicated that these slopes slide along the maximal shear strain zone. In this paper, taking a debris slope in the midstream of Lanchang River as a engineering example, the slope stability was studied by analyzing its maximal shear strain increment and displacement characteristics with the software FLAC-3D ( Fast Lagrangian Analysis of Continua in Threedimension). Comparison with the calculation results of "are search" shows that they are eorresponding well. |
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| Keywords: | Debris slope Stability Shear strain FLAC Slide surface search. |
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