Stability Charts for 3D Failures of Steep Slopes Subjected to Seismic Excitation

被引：105

作者：

Michalowski, Radoslaw L. ^{[1
]}

Martel, Tabetha ^{[1
]}

机构：

[1] Univ Michigan, Dept Civil & Environm Engn, Ann Arbor, MI 48109 USA

来源：

JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING | 2011年 / 137卷 / 02期

基金：

美国国家科学基金会;

关键词：

Slopes; Stability; Seismic analysis; Limit state analysis; 3D analysis; Failure; 3-DIMENSIONAL ANALYSIS; FINITE-ELEMENTS; SOILS;

D O I：

10.1061/(ASCE)GT.1943-5606.0000412

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Design of slopes and analysis of existing slopes subjected to seismic shaking are carried out routinely using approximations of plane strain and substitution of a quasi-static load for the seismic excitation. A three-dimensional (3D) analysis of slopes is carried out, based on the kinematic theorem of limit analysis. A rotational failure mechanism is used with the failure surface in the shape of a curvilinear cone sector passing through the slope toe, typical of steep slopes. A quasi-static approach is used to develop stability charts allowing assessment of the factor of safety of slopes without the need for an iterative procedure. The charts are of practical importance in cases of excavation slopes and whenever a slope is physically constrained, preventing a plane failure.

引用

页码：183 / 189

页数：7

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