Passive earth-pressure coefficients by upper-bound numerical limit analysis

被引：1

作者：

Antao, Armando N. ^{[1
]}

Santana, Teresa G. ^{[1
]}

da Silva, Mario Vicente ^{[1
]}

da Costa Guerra, Nuno M. ^{[1
]}

机构：

[1] Univ Nova Lisboa, Fac Ciencias & Tecnol, Dept Civil Engn, UNIC, P-2829516 Caparica, Portugal

来源：

CANADIAN GEOTECHNICAL JOURNAL | 2011年 / 48卷 / 05期

关键词：

three-dimensional passive earth-pressure coefficients; upper-bound numerical analysis; finite elements;

D O I：

10.1139/T10-103

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

A three-dimensional (3D) numerical implementation of the limit analysis upper-bound theorem is used to determine passive horizontal earth-pressure coefficients. An extension technique allowing determination of the 3D passive earth pressures for any width-to-height ratios greater than 7 is presented. The horizontal passive earth-pressure coefficients are presented and compared with solutions published previously. Results of the ratio between the 3D and two-dimensional horizontal passive earth-pressure coefficients are shown and found to be almost independent of the soil-to-wall friction ratio. A simple equation is proposed for calculating this passive earth-pressure ratio.

引用

页码：767 / 780

页数：14

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