Analytical expressions for determining the stability of cohesionless soil slope under generalized seismic conditions

doi:10.1007/s11629-017-4780-6

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2018 > Vol15 No.7

	Analytical expressions for determining the stability of cohesionless soil slope under generalized seismic conditions
	Sahoo, Pragyan Pradatta; Shukla, Sanjay Kumar; Mohyeddin, Alireza
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2018
卷号	15 期号:7 页码:1559-1571
关键词	Factor of safety Horizontal and vertical seismic coefficients Soil slopes Yield acceleration Sliding block displacement Seismic slope stability
ISSN号	1672-6316
DOI	10.1007/s11629-017-4780-6
文献子类	Article
英文摘要	In recent major earthquakes, the researchers have found the need for consideration of vertical seismic acceleration for the stability analysis of the man-made and natural slopes. However, in most past studies, the performance of slopes has been assessed by accounting only the horizontal seismic component of the ground motion, without giving due weightage to the effect of vertical component. In the present study, analytical expressions are derived to determine the factor of safety, yield seismic coefficient and consequently the seismic displacement of cohesionless soil slope under combined horizontal and vertical components of the ground motion. The derivation uses the Newmark's sliding block approach, in which the soil slope with a planar failure surface within the framework of conventional pseudo-static analysis is assumed to follow the Mohr-Coulomb failure criterion. The effects of vertical seismic coefficient on the stability of cohesionless slope have been studied through a set of graphical presentations for a specific range of soil parameters. It is observed that overlooking the effect of the vertical component of the ground motion on factor of safety and the displacement while designing the slope may be detrimental, resulting in the slope failure. The general expressions presented in this paper may be highly useful in the field of earthquake geotechnical engineering practice for designing the cohesionless soil slopes under combined horizontal and vertical seismic loads.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000438468900014
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/35552]
专题	Journal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.7
推荐引用方式 GB/T 7714	Sahoo, Pragyan Pradatta,Shukla, Sanjay Kumar,Mohyeddin, Alireza. Analytical expressions for determining the stability of cohesionless soil slope under generalized seismic conditions[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(7):1559-1571.
APA	Sahoo, Pragyan Pradatta,Shukla, Sanjay Kumar,&Mohyeddin, Alireza.(2018).Analytical expressions for determining the stability of cohesionless soil slope under generalized seismic conditions.JOURNAL OF MOUNTAIN SCIENCE,15(7),1559-1571.
MLA	Sahoo, Pragyan Pradatta,et al."Analytical expressions for determining the stability of cohesionless soil slope under generalized seismic conditions".JOURNAL OF MOUNTAIN SCIENCE 15.7(2018):1559-1571.