Landslide Reliability Analysis Based on Transfer Coefficient Method: A Case Study from Three Gorges Reservoir

查看全文 作　　者：[1,2]毕仁能;Dominik [2,3]Ehret;[1,4]项伟;Joachim [2]Rohn;Markus [2]Schleier;[2,4]江洎洧

机构地区：[1]Three Gorges Research Center for Geo-hazard,Ministry of Education,China University of Geosciences;[2]Department of Applied Geology,University of Erlangen-Nuremberg;[3]State Office for Geology,Resources and Mining of Baden-Württemberg,Freiburg i.Br.,Germany;[4]Faculty of Engineering,China University of Geosciences

出　　处：《Journal of Earth Science》索引2012年第23卷第2期,共12页

基　　金：supported by the German Federal Ministry of Education and Research (BMBF) 摘　　要：To evaluate the reliability of a landslide in a reservoir, the universal transfer coefficient method, which is popularized by the Chinese standard, is adopted as performance function in this study for: (1) common deterministic method stability evaluation; (2) reliability evaluation based on a Monte Carlo method; (3) comparison of landslide reliability under different water levels and under different correlation coefficients between soil shear strength parameters (c, Φ), respectively with mean, standard deviation, reliability coefficient and failure probability. This article uses the Bazimen (八字门) landslide, which is located at the outlet of Xiangxi (香溪) River in the Three Gorges Reservoir, as an example to evaluate its stability and reliability under different water levels with two-dimensional deterministic and probabilistic methods. With the assumption that constant mean and normal distributed shear strength parameters (c, Φ), correlation coefficient c, Φ=-1 based reliability analysis, compared with c, Φ=0 and 1, indicates obviously more increase of reliability index and lower standard deviation as water levels rise. To the case of a certain water level, c, Φ=-1 does not have constantly positive or negative effects on landslide reliability compared with c, Φ=0 or 1, but is associated with water level. Whereas the safety factor Fs by deterministic method, which is almost the same value as corresponding mean of safety factor from probabilistic analysis, will increase slightly as water level increases. 关键词：可靠性分析水库滑坡三峡库区传递系数法抗剪强度参数可靠性评估稳定性评价蒙特卡罗方法

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Landslide Reliability Analysis Based on Transfer Coefficient Method: A Case Study from Three Gorges Reservoir

参考文献(38)

引证文献(11)

耦合文献(137)

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