Reasonable selection of yield criteria for quantitative analysis of unsaturated soil slope stability

doi:10.1007/s11629-015-3442-9

	Reasonable selection of yield criteria for quantitative analysis of unsaturated soil slope stability
	Liu, ZZ; Yan, ZX; Ren, ZH; Qiu, ZH; Duan, J; Yan, ZX (reprint author), Lanzhou Univ, Sch Civil Engn & Mech, Lanzhou 730000, Peoples R China.
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2016-07
卷号	13 期号:7 页码:1304-1312
关键词	Unsaturated soil slope Yield criteria Parameter transformation Rainfall Safety factor
ISSN号	1672-6316
DOI	10.1007/s11629-015-3442-9
文献子类	Article
英文摘要	The yield criterion parameters of the soil material change with different values of the cohesion and the angle of friction because 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 16.5A degrees by transformation of parameters related to unsaturated soil under sustained rainfall. When the effective angle of friction more than 16.5A degrees 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 16.5A degrees, 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 16.5A degrees 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.
学科主题	Environmental Sciences & Ecology
出版地	BEIJING
资助项目	国家自然科学基金项目
项目编号	Zhejiang Provincial Natural Science Foundation of China [LY13E080008] ; Natural Science Foundation of China [51108293] ; Science and Technology Fund of Yunnan Provincial Communication Department of China [2010(A) 06-b]
语种	英语
CSCD记录号	CSCD:5755432
WOS记录号	WOS:000379268900014
资助机构	NSFC
内容类型	期刊论文
源URL	[http://ir.lzu.edu.cn/handle/262010/182544]
专题	土木工程与力学学院_期刊论文
通讯作者	Yan, ZX (reprint author), Lanzhou Univ, Sch Civil Engn & Mech, Lanzhou 730000, Peoples R China.
推荐引用方式 GB/T 7714	Liu, ZZ,Yan, ZX,Ren, ZH,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, ZZ,Yan, ZX,Ren, ZH,Qiu, ZH,Duan, J,&Yan, ZX .(2016).Reasonable selection of yield criteria for quantitative analysis of unsaturated soil slope stability.JOURNAL OF MOUNTAIN SCIENCE,13(7),1304-1312.
MLA	Liu, ZZ,et al."Reasonable selection of yield criteria for quantitative analysis of unsaturated soil slope stability".JOURNAL OF MOUNTAIN SCIENCE 13.7(2016):1304-1312.