| 节理岩质边坡稳定性概率分析 |
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| 引用本文： | 张宜杰,任光明,常文娟,董斌,唐杨. 节理岩质边坡稳定性概率分析[J]. 成都理工大学学报(自然科学版), 2021, 48(2): 235-241. DOI: 10.3969/j.issn.1671-9727.2021.02.11 |
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| 作者姓名： | 张宜杰 任光明 常文娟 董斌 唐杨 |
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| 作者单位： | 地质灾害防治与地质环境保护国家重点实验室(成都理工大学),成都 610059;中国电建集团 西北勘测设计研究院有限公司,西安 710065;国网四川省电力公司,成都 610041 |
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| 摘 要： | 为合理评价某节理岩质边坡稳定性,将节理网络有限元(JFEM)与Rosenbluth点估计法相结合建立边坡节理网络概率模型.计算结果表明:天然状态下该边坡整体稳定性较好,但浅表部有部分岩体由于风化以及结构面相互切割的影响,易形成不稳定块体以"滑移-拉裂"的形式失稳.本文的分析方法考虑了结构面非贯通、随机发育的特性以及岩体...
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| 关 键 词： | 节理网络 有限元 岩质边坡 点估计法 稳定性分析 |
Probabilistic analysis of stability of jointed rock slope |
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| ZHANG Yijie,REN Guangming,CHANG Wenjuan,DONG Bin,TANG Yang. Probabilistic analysis of stability of jointed rock slope[J]. Journal of Chengdu University of Technology: Sci & Technol Ed, 2021, 48(2): 235-241. DOI: 10.3969/j.issn.1671-9727.2021.02.11 |
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| Authors: | ZHANG Yijie REN Guangming CHANG Wenjuan DONG Bin TANG Yang |
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| Affiliation: | (State Key Laboratory of Geohazard Prevention and Environment Protection, Chengdu University of Technology, Chengdu 610059, China;Power China Xibei Engineering Corporation Ltd., Xi'an 710065, China;State Grid Sichuan Electric Power Company, Chengdu 610041, China) |
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| Abstract: | In order to evaluate the stability of a jointed rock slope reasonably,the joint network finite element(JFEM)and Rosenbluth point estimation methods are used jointly to establish a probability model for slope joint network.The results show that the overall stability of the slope is good in the natural state,but due to the influence of weathering and intercutting of structural planes,some rock masses in the shallow surface are easy to form unstable blocks in the form of"slip-tensile crack".The analysis method used in this paper takes into account the characteristics of discontinuity and random development of the structural plane and the variability of the strength parameters(internal friction angle and cohesion)of the rock mass,which makes the evaluation results more reasonable and reliable. |
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| Keywords: | joint network finite element rock slope point estimate method stability analysis |
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