中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2011, Vol. 30 ›› Issue (1): 64-68.

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地震作用下滑坡的稳定性分析及治理措施

高峰,李俊   

  1. 重庆交通大学 土木建筑学院,重庆 400074
  • 收稿日期:2010-10-19 修回日期:2010-11-26 出版日期:2011-02-15 发布日期:2015-01-22
  • 作者简介:高峰( 1964—) ,男,浙江云和人,教授,博士生导师,主要从事隧道及地下工程研究工作。E-mail: gaofeng1964@163.com。
  • 基金资助:
    教育部高等学校博士学科点专项基金项目( 20095522110002) ; 重庆市自然科学基金项目( CSTC,2008BB6066) ; 重庆市教委科学 技术研究项目( KJ090403)

Stability Analysis and Control Measures of Landslide under Earthquake

GAO Feng,LI Jun   

  1. School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China
  • Received:2010-10-19 Revised:2010-11-26 Online:2011-02-15 Published:2015-01-22

摘要: 以川藏公路田妥—怒江段一滑坡为研究背景,采用拟静力法的有限元强度折减法和简化Bishop 法对滑坡地 震作用下的稳定性进行了计算分析。通过分析得到滑坡整治前在地震作用下处于滑动状态,应及时对该段滑坡进 行整治,提出了合理的整治方案并进行了安全性评价。结果表明: 整治后滑坡在地震作用下的安全系数大于设计 安全系数。研究成果为类似滑坡在地震作用下的稳定性分析和整治工程设计提供了依据。

关键词: 地震作用, 滑坡, 稳定性分析, 拟静力法, 强度折减法, 安全系数

Abstract: The strength reduction FEM method based on the quasi-static method and the simplified Bishop method are selected to analyze the stability of a landslide under earthquake in the background of the landslide of Tiantuo to Nujiang rive section in Sichuan-Tibet Road. The calculation indicates that the landslide under earthquake is in an unstable state and regulation project should be taken in time. Advisable regulation schemes of the landslide are put forward. The results indicate that the safety coefficients after the regulation are greater than design safety coefficients. And the achievements are proceeded to provide evidences for the stability analysis in earthquake as well as the design of the landslide regulation schemes of the similar landslide.

Key words: earthquake function, landslide, stability analysis, pseudo-static method, strength reduction method; safety coefficients

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