Reliability bearing capacity analysis of footings on cohesive soil slopes using RFEM

被引：44

作者：

Luo, Ning ^{[1
]}

Bathurst, Richard J. ^{[2
]}

机构：

[1] Queens Univ, GeoEngn Ctr, Queens RMC, Dept Civil Engn, Ellis Hall, Kingston, ON K7L 3N6, Canada

[2] Dept Civil Engn, GeoEngineering Ctr, Queens RMC, 13 Gen Crerar, Sawyer Bldg,Room 2414, Kingston, ON K7K7134, Canada

来源：

COMPUTERS AND GEOTECHNICS | 2017年 / 89卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Footing bearing capacity; Cohesive soil; Slope stability; Random finite element method (RFEM); Spatial variability; Reliability analysis; SPATIALLY RANDOM SOIL; STABILITY ANALYSIS; SIMULATION;

D O I：

10.1016/j.compgeo.2017.04.013

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Reliability analysis of bearing capacity of a strip footing at the crest of a simple slope with cohesive soil was carried out using the random finite element method (RFEM). Analyses showed that the coefficient of variation and the spatial correlation length of soil cohesion can have a large influence on footing bearing capacity, particularly for slopes with large height to footing width ratios. The paper demonstrates cases where a footing satisfies a deterministic design factor of safety of 3 but the probability of design failure is unacceptably high. Isotropic and anisotropic spatial variability of the soil strength was also considered. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：203 / 212

页数：10

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