Limit equilibrium analysis of seismic stability of slopes reinforced with a row of piles

被引：29

作者：

Li, Xinpo ^{[1
,2
]}

Su, Lijun ^{[1
,3
]}

He, Siming ^{[1
,2
,3
]}

Xu, Jun ^{[4
]}

机构：

[1] Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China

[2] Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China

[3] Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China

[4] China Railway Eryuan Engn Grp Co Ltd, Chengdu 610031, Peoples R China

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS | 2016年 / 40卷 / 08期

基金：

中国国家自然科学基金;

关键词：

limit equilibrium method; piles; slope stability; yield acceleration; GRAVITY RETAINING WALLS; DRILLED SHAFTS; STABILIZATION; LANDSLIDE; DESIGN;

D O I：

10.1002/nag.2484

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

An approach based on the category of limiting equilibrium analysis is proposed to consider the reinforcing effect of one row of vertical piles on slope under seismic conditions. The approach is based on an uncoupled formulation in which the pile response and slope stability are considered separately. Closed-form equations are derived, allowing the yield acceleration coefficient to be determined for giving pile characteristics. Results were compared with those obtained using another limit equilibrium method. The effects of pile location on the effectiveness of increasing seismic stability of the slope-pile system were elucidated. It was found out that the piles should be installed in the middle-upper part of the slope to achieve greatest safety, but the pile length and other possible failure modes should be checked carefully in design. Copyright (c) 2015 John Wiley & Sons, Ltd.

引用

页码：1241 / 1250

页数：10

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