›› 2012, Vol. 26 ›› Issue (4): 44-47.

• 工程实录 • 上一篇    下一篇

用强度折减法分析土坡稳定参数敏感性

徐炎兵1,王新志2   

  1. 1.中国电力工程顾问集团中南电力设计院 勘测分公司  武汉430071;2.中国科学院武汉岩土力学研究所 岩土力学与工程国家重点实验室,武汉430071
  • 收稿日期:2012-05-08 出版日期:2012-08-20 发布日期:2012-09-07
  • 作者简介:徐炎兵,男,2008年毕业于中国科学院武汉岩土力学研究所,工学博士,研究方向为岩土工程勘测、设计与科研。
  • 基金资助:

    国家自然科学青年基金(No.51108449)

Soil Parameter Sensitivity Analysis Soil Slopes Using Strength Reduction Method

XU Yanbing1, WANG Xinzhi2   

  1. 1.Institute of China Power Engineering Consulting Group, Wuhan 430071;
    2.Institute of Rock and Soil Mechanics, Chinese Academy of Sciences,Wuhan 430071
  • Received:2012-05-08 Online:2012-08-20 Published:2012-09-07

摘要: 介绍了有限差分法和强度折减法在土坡稳定性分析中的优势和应用,采用标准的算例分析了土坡稳定性计算中土的剪胀角、粘聚力和内摩擦角对土坡稳定性的影响。分析结果表明:安全系数随着剪胀角、粘聚力和内摩擦角的增大而增大,塑性区和滑动面也相应地发生移动,分析结果对滑坡设计具有很好的指导作用。

关键词: 土坡稳定, 安全系数, 有限差分法, 强度折减法

Abstract: The factor of safety of soil slopes is studied in finite difference analysis (FDA) based on the strength reduction approach. This paper introduces a new finite difference method and a strength reduction approach in a soil slope stability analyses. In a verification analysis, the effect of the dilatant angle, cohesion and the internal friction angle of soils on the stability of the soil slopes are studied. The results indicate that the factor of safety increases with the increase of dilatant angle, cohesion and internal friction angle, respectively.

Key words: Slope Stability, Factor of Safety, Finite Difference Analysis, Strength Reduction Method