Seismic stability analysis for a two-stage slope

被引：7

作者：

Rao, Pingping ^{[1
]}

Wu, Jian ^{[1
]}

Jiang, Ganyou ^{[2
]}

Shi, Yunwei ^{[3
]}

Chen, Qingsheng ^{[4
]}

Nimbalkar, Sanjay ^{[5
]}

机构：

[1] Univ Shanghai Sci & Technol, Dept Civil Engn, Shanghai 20093, Peoples R China

[2] Guangxi Luqiao Engn Grp Co Ltd, Nanning 530011, Peoples R China

[3] Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, Shanghai 200240, Peoples R China

[4] Hubei Univ Technol, Hubei Prov Ecol Rd Engn Technol Res Ctr, Wuhan 430068, Peoples R China

[5] Univ Technol Sydney, Sch Civil & Environm Engn, 15 Broadway, Ultimo, NSW 2007, Australia

来源：

GEOMECHANICS AND ENGINEERING | 2021年 / 27卷 / 02期

基金：

中国国家自然科学基金;

关键词：

critical failure surface; limit analysis; safety factor; seismic stability; two-stage slope; ROCK SLOPE; LIMIT ANALYSIS; REINFORCEMENT; SURCHARGE;

D O I：

10.12989/gae.2021.27.2.189

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper adopts the kinematic theorem of limit analysis to assess the seismic stability of a two-stage slope. The seismic effect is taken into account by using the pseudo-static approach. The failure mechanism for the slope is extended to include below-toe failure, toe failure and face failure. Validation of this approach is conducted by comparing the factor of safety with the data in the existing literatures. The stability charts are presented based on the graphical method for reading the factor of safety readily. Parametric study involving the effect of slope geometry, internal friction angle, seismic effect as well as depth coefficient on the stability of a two-stage slope is carried out. The critical failure surfaces with various parameters are plotted. The results obtained reveal the significant influence of slope geometry on the failure mechanism of a two-stage slope under static and seismic condition.

引用

页码：189 / 196

页数：8

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