土工基础

›› 2018, Vol. 32 ›› Issue (2): 161-164.

• 工程实录 • 上一篇    下一篇

基于理论分析和FLAC3D的滑坡稳定性评价及治理

李 锋，孙 晖   

  1. （江苏省第二地质工程勘察院，江苏徐州 221000）
  • 收稿日期:2017-12-11 修回日期:2017-12-20 出版日期:2018-04-30 发布日期:2018-05-09
  • 作者简介:李 锋（1983-），男，工程师，国家注册土木工程师（岩土），研究方向为岩土工程和土木工程。
  • 基金资助:

    江苏沿海经济区地质环境调查评价（1212011220005）

Landslide Stability Analysis Using FLAC3D and Mitigation

 LI   Feng, SUN   Hui   

  1. (Jiangsu Second Geological Engineering Investigation Institute, Xuzhou 221000)
  • Received:2017-12-11 Revised:2017-12-20 Online:2018-04-30 Published:2018-05-09

摘要： 以徐州市鼓楼区的沙虎山滑坡为研究对象，分析了滑坡的形成条件和影响因素，对其进行稳定性评价和数值模拟。通过简单平面滑动分析计算出滑坡在自然状态下和长时间降雨形成软弱夹层状态下的稳定性系数，并结合FLAC3D数值模拟方法，分析滑坡的位移及应力分布情况。研究结果表明目前沙虎山滑坡处于稳定状态，但由于存在软弱地层，长期降雨可能会诱发滑坡灾害。经综合分析后提出了治理方案。

关键词: 滑坡, 稳定性评价, 数值模拟, 治理研究

Abstract: This paper presents the case history of a landslide evaluation and mitigation results of Shahushan in Gulou District of Xuzhou City. Factors and conditions that cause the slope failure are evaluated. The slope stability was analyzed under both normal and longterm precipitation conditions by finite element method using FLAC3D. The displacement and stress distributions in the slope were presented. The results indicate that the slope was stable under the normal conditions, however, due to the presence of weak zones, the slope might be failed under the longterm precipitation condition. The mitigation measures are suggested based on the analytical results.

Key words: Landslide, Stability Evaluation, Numerical Simulation, Mitigation Measures