Simulated Crack and Slip Plane Propagation in Soil Slopes with Embedded Discontinuities Using XFEM

被引：18
|
作者：
Wang, Xiangnan [1 ]
Yu, Peng [1 ]
Yu, Jialin [2 ]
Yu, Yuzhen [1 ]
Lv, He [1 ]
机构：
[1] Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China
[2] China Renewable Energy Engn Inst, Beijing 100120, Peoples R China
来源：
INTERNATIONAL JOURNAL OF GEOMECHANICS | 2018年 / 18卷 / 12期
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
Extended finite-element method (XFEM); Slope failure; Strong-discontinuity growth; Slip plane; Crack; FINITE-ELEMENT-METHOD; FRICTIONAL CONTACT; NUMERICAL-ANALYSIS; GROWTH; LOCALIZATION; STABILITY; MODELS;
D O I：
10.1061/(ASCE)GM.1943-5622.0001290
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
To simulate the onset and growth of strong discontinuities (cracks or slip planes) and the failure mechanism in soil slopes with reasonable accuracy, a program was developed based on the existing extended finite-element method (XFEM). This program consists of a new analytical algorithm for strong-discontinuity initiation and propagation in soils considering the stress concentration and redistribution around the discontinuity tip and an integration scheme for the XFEM enriched discontinuities. Two different types of interfacial contact constitutive models are used to describe the interface behavior of the cracks or slip planes. Analyses of two slope failure examples are presented to demonstrate the reliability of this program and the reference values for engineering measurements. (C) 2018 American Society of Civil Engineers.
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页数：17
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