Stability analysis of slope in strain-softening soils using local arc-length solution scheme

doi:10.1007s11629-016-3951-1

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-2017 > Vol14 No.1

	Stability analysis of slope in strain-softening soils using local arc-length solution scheme
	WANG Xiang-rong; RONG Qi-guo; SUN Shu-li; WANG Hui
刊名	Journal of Mountain Science
	2017-01
卷号	14 期号:1 页码:175-187
关键词	Strain-softening Progressive Failure Slope Stability Local Arc-length Scheme Numerical Simulation
ISSN号	1672-6316
DOI	10.1007s11629-016-3951-1
通讯作者	RONG Qi-guo
文献子类	期刊论文
英文摘要	Soils with strain-softening behavior — manifesting as a reduction of strength with increasing plastic strain — are commonly found in the natural environment. For slopes in these soils, a progressive failure mechanism can occur due to a reduction of strength with increasing strain. Finite element method based numerical approaches have been widely performed for simulating such failure mechanism, owning to their ability for tracing the formation and development of the localized shear strain. However, the reliability of the currently used approaches are often affected by poor convergence or significant mesh-dependency, and their applicability is limited by the use of complicated soil models. This paper aims to overcome these limitations by developing a finite element approach using a local arc-length controlled iterative algorithm as the solution strategy. In the proposed finite element approach, the soils are simulated with an elasto-plastic constitutive model in conjunction with the Mohr-Coulomb yield function. The strain-softening behavior is represented by a piece-wise linearrelationship between the Mohr-Coulomb strength parameters and the deviatoric plastic strain. To assess the reliability of the proposed finite element approach, comparisons of the numerical solutions obtained by different finite element methods and meshes with various qualities are presented. Moreover, a landslide triggered by excavation in a real expressway construction project is analyzed by the presented finite element approach to demonstrate its applicability for practical engineering problems.
语种	英语
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/18320]
专题	Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.1
推荐引用方式 GB/T 7714	WANG Xiang-rong,RONG Qi-guo,SUN Shu-li,et al. Stability analysis of slope in strain-softening soils using local arc-length solution scheme[J]. Journal of Mountain Science,2017,14(1):175-187.
APA	WANG Xiang-rong,RONG Qi-guo,SUN Shu-li,&WANG Hui.(2017).Stability analysis of slope in strain-softening soils using local arc-length solution scheme.Journal of Mountain Science,14(1),175-187.
MLA	WANG Xiang-rong,et al."Stability analysis of slope in strain-softening soils using local arc-length solution scheme".Journal of Mountain Science 14.1(2017):175-187.