IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2016  > Vol13 No.7
Reasonable selection of yield criteria for quantitative analysis of unsaturated soil slope stability
LIU Zi-zhen; YAN Zhi-xin; REN Zhi-hua; QIU Zhan-hong; DUAN Jian
Corresponding AuthorYAN Zhi-xin
2016-07
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume13Issue:7Pages:1304-1312
Subtype期刊论文
AbstractThe yield criterion parameters of the soil material change with different values of the cohesion and the angle of frictionbecause of sustained rainfall infiltration. Based on the Mohr-Coulomb (M-C) and Drucker-Prager (D-P) yield criteria, some reasonable yield criteria selections were discussed for quantitative analysis of unsaturated soil slope stability. Moreover, a critical point was found at the effective angle of friction equaling to 16.5° by transformation of parameters related to unsaturated soil under sustained rainfall. When the effective angle of friction more than 16.5°through parameter transformation of different yield criteria under natural condition, the calculation result of the safety factor was such that: f(DP1) > f(M-C) > f(equivalent M-C) > f(DP2) > f(DP3). While the effective angle of friction less than 16.5° , through parameter transformation, the safety factors were in the following order: f(DP1) > f(M-C) > f(DP2) > f(equivalent M-C) > f(DP3). The calculated results from a case study showed that the equivalent M-C yield criterion should be the best at evaluating soil slope stability before rainfall; the DP2 yield criterion should be selected to calculate the soil slope stability at the effective angle of friction less than 16.5°under sustained rainfall. The yield criterion should be selected or adjusted reasonably to calculate the safety factor of unsaturated soil slopes before and during sustained rainfall.
KeywordUnsaturated Soil Slope Yield Criteria Parameter Transformation Rainfall Safety Factor
DOI10.1007/s11629-015-3442-9
Indexed BySCI
Language英语
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/17267
CollectionJournal of Mountain Science_Journal of Mountain Science-2016_Vol13 No.7
Recommended Citation
GB/T 7714
LIU Zi-zhen,YAN Zhi-xin,REN Zhi-hua,et al. Reasonable selection of yield criteria for quantitative analysis of unsaturated soil slope stability[J]. Journal of Mountain Science,2016,13(7):1304-1312.
APA LIU Zi-zhen,YAN Zhi-xin,REN Zhi-hua,QIU Zhan-hong,&DUAN Jian.(2016).Reasonable selection of yield criteria for quantitative analysis of unsaturated soil slope stability.Journal of Mountain Science,13(7),1304-1312.
MLA LIU Zi-zhen,et al."Reasonable selection of yield criteria for quantitative analysis of unsaturated soil slope stability".Journal of Mountain Science 13.7(2016):1304-1312.
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