顺层岩质边坡稳定性极限平衡分析方法比较研究

doi:10.3969/j.issn.1001-5485.2013.12.012

院报 ›› 2013, Vol. 30 ›› Issue (12): 65-68.DOI: 10.3969/j.issn.1001-5485.2013.12.012

顺层岩质边坡稳定性极限平衡分析方法比较研究

段永伟¹，胡修文¹，吁燃²，卢阳³

1.中国地质大学武汉工程学院,武汉430074；
2.贵州省交通规划勘察设计院,贵阳550001；
3.中国科学院水利部成都山地灾害与环境研究所,成都610041

收稿日期:2012-12-27 修回日期:2013-12-10 出版日期:2013-12-10 发布日期:2013-12-10
作者简介:段永伟(1987-),男,河南南阳人,硕士研究生,主要从事岩土体稳定性分析评价与利用方面的研究,(电话)15002716906(电子信箱)duanyongwei1212@126.com

Comparative Study on Limit Equilibrium Methods forStability Analysis of Bedding Rock Slope

DUAN Yong-wei¹,HU Xiu-wen¹,YU Ran²,LU Yang³

1.Faculty of Engineering,China University of Geosciences,Wuhan 430074,China;
2.Guizhou Transportation Planning Survey and Design Co.,Ltd.,Guiyang 550001,China;
3.Institute of Mountain Hazard and Environment,Chinese Academy of Sciences,Chengdu 610041,China

Received:2012-12-27 Revised:2013-12-10 Online:2013-12-10 Published:2013-12-10

摘要/Abstract

摘要： 顺层岩质边坡是影响工程岩体稳定性、导致地质灾害发生的典型边坡岩体结构类型。顺层岩质边坡的稳定性是边坡研究的重要内容。不平衡推力法、Sarma法和直线型分析法是应用广泛的边坡稳定性分析方法,在介绍这3种方法的基础上,以宜巴高速舒家槽大桥桥基顺层岩质边坡为研究对象,分析边坡岩体结构特征和破坏情况,运用这3种方法分析边坡的稳定性,并与边坡岩体结构特征和破坏情况进行比较分析。研究结果表明:Sarma法稳定性分析结果与边坡实际破坏情况非常吻合,更适合于节理裂隙发育的顺层岩质边坡的稳定性分析;不平衡推力法计算结果偏大;直线型分析法结果偏小,较保守。

关键词: 顺层岩质边坡, Sarma法, 不平衡推力法, 直线滑动面法, 边坡稳定性评价

Abstract: Bedding rock slope is a typical rock mass structure which influences the stability of engineering rock mass and leads to geological hazards. Several methods of slope stability analysis,namely,Sarma Method,Imbalance Thrust Force Method,and Linear Sliding Surface Method,are compared in this paper. With the bedding rock slope at the bridge foundation of Shujiacao Bridge of Yichang-Badong Highway as an example,the rock slope stability was analyzed by these three methods. The analyzed results were compared with the actual rock mass structure and damage of this bedding rock slope. The comparison shows that the result by Sarma method consists well with the actual situation of slope failure,it is more suitable for analyzing bedding rock slope with joint fissures; whereas the calculation result of Imbalance Thrust Force Method is larger,and Linear Sliding Surface Method is conservative and smaller.

Key words: bedding rock slope, Sarma method, imbalance thrust force method, linear sliding surface method, slope stability assessment

中图分类号:

TU457

段永伟，胡修文，吁燃，卢阳. 顺层岩质边坡稳定性极限平衡分析方法比较研究[J]. 院报, 2013, 30(12): 65-68.

DUAN Yong-wei,HU Xiu-wen,YU Ran,LU Yang. Comparative Study on Limit Equilibrium Methods forStability Analysis of Bedding Rock Slope[J]. JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI, 2013, 30(12): 65-68.

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顺层岩质边坡稳定性极限平衡分析方法比较研究

Comparative Study on Limit Equilibrium Methods forStability Analysis of Bedding Rock Slope

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