期刊
STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
卷 28, 期 7, 页码 1723-1732出版社
SPRINGER
DOI: 10.1007/s00477-013-0831-x
关键词
Random-fuzzy; Reliability; Stability analysis; Liangshuijing landslide
类别
资金
- National Key Basic Research and Development Program of China [2011CB710606]
- National Natural Science Foundation of China [41272307]
A large number of reservoir landslides will be impacted under the action of cyclical water level change in Three Gorges Reservoir, therefore its stability analysis and evaluation are important. And various kinds of influencing factors should be considered when landslide stability is analyzed. Taking Liangshuijing landslide as a case, considering the uncertain factors in the landslide stability analysis process, the landslide random-fuzzy reliability is analyzed in the paper, based on the sliding soil shear strength parameters testing and groundwater monitoring data. The results show that the landslide random-fuzzy reliability is the smallest at the process of high water level slowly dropping to low water level, and the landslide is basically at a steady state, which is consistent with landslide body actual deformation. Taking into account the uncertainty of groundwater level in a landslide body is equivalent to taking into account the changes of occurrence conditions in landslide rock and soil. Taking these factors into account is more in line with the actual when compared with only considering shear strength parameters random properties.
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