土工基础

›› 2012, Vol. 26 ›› Issue (3): 47-49.

• 工程实录 • 上一篇    下一篇

基于强度折减法的某公路边坡稳定性数值模拟

康 平1，穆 伟1，汪子杰2，张德明2   

  1. （1.陕西省煤田地质局一三一队，陕西韩城 715400；2.山东省第四地质矿产勘查院，山东潍坊 261021）
  • 收稿日期:2012-03-27 出版日期:2012-06-20 发布日期:2012-06-25
  • 作者简介:康平（1963-），男，煤田地质与勘探专业，工程师，研究方向为岩土工程与地质灾害。

Numerical Analysis on the Highway Slope Stability  Based on Strength Reduction Method

KANG Ping1, MU Wei1, WANG Zijie2, ZHANG Deming2   

  1. （1.Division 131, Shanxi Tianli Geology Co., Ltd; Hancheng  Shanxi 715400;2.Shandong Provincial No. 4 Institute of Geological and Mineral Survey, Weifang  Shandong 261021)
  • Received:2012-03-27 Online:2012-06-20 Published:2012-06-25

摘要： 边坡稳定性的评价对于地质灾害防治具有重要的意义，采用目前应用较多的有限元强度折减法对某公路边坡进行了稳定性计算，得到了该边坡的稳定系数和变形破坏规律；通过对比极限平衡法和有限元抗剪强度折减法对该边坡稳定性进行分析，研究表明，基于抗剪强度折减法的数值模拟方法能更好地反映边坡内应力分布状态，在斜坡稳定性评价中具有广阔的应用前景。

关键词: 公路边坡, 稳定性, 强度折减法, 数值模拟

Abstract: Slope stability evaluation has an important role in the geologic hazards prevention and minimization. This paper evaluates a highway slope by using the finite element analysis (FEA) with strength reduction method. The relationship between the stability number and the deformation failure is developed through the analyses. The FEA results are also compared with the results from the limit equilibrium method. It is concluded that the FEA with strength reduction can better represent the stress distributions within the slope.

Key words: Highway Slopes, Slope Stability, Strength Reduction Methods, Numerical Analyses