土工基础

›› 2017, Vol. 31 ›› Issue (3): 287-291.

• 工程实录 • 上一篇    下一篇

基于Slide和FLAC3D的河岸高边坡稳定性分析

谢武军1，魏世豪2，杨 明1，王 蕾1   

  1. （1.武汉丰达地质工程有限公司，武汉 430074；2.中国地质大学工程学院，武汉 430074）
  • 收稿日期:2016-06-12 修回日期:2016-06-17 出版日期:2017-06-25 发布日期:2017-06-26
  • 作者简介:谢武军（1971-），男，研究方向为水文地质与工程地质、岩土力学与工程等勘察、设计、施工、科研等。

Application of Slide and FLAC3D in the Stability Analysis of a High Slope near the River Bank

XIE Wujun1, WEI Shihao2, YANG Ming1, WANG Lei1   

  1. (1.Wuhan Fengda Geological Engineering Co. Ltd., Wuhan 430074;
    2.College of Engineering, China University of Geosciences, Wuhan 430074)
  • Received:2016-06-12 Revised:2016-06-17 Online:2017-06-25 Published:2017-06-26

摘要： 以某河岸高边坡稳定性分析评价为背景，采用Slide软件计算其稳定性系数，确定其最危险滑动面；利用FLAC3D软件进行数值模拟分析，分别考虑在河流侵蚀作用和暴雨工况下边坡变形对建筑物的影响，根据位移和塑性破坏区图绘制了边坡变形影响范围线。稳定性分析结果表明，最危险滑动面在上覆填土和粉土层，河流侵蚀对边坡的变形有潜在影响，暴雨工况下边坡的变形破坏加重，对场地建筑物的地基造成影响，该分析结果与现场调查情况基本吻合。

关键词: 边坡稳定性, 数值模拟, Slide, FLAC3D

Abstract: The stability aspect of a high slope near the river bank was evaluated with commercial software SLIDE. The slide plane with the minimum factor of safety is located. This slope is also numerically analyzed with the commercial software FLAC3D under the river scoured as well as the heavy precipitation conditions. The effect of the slope deformation on the adjacent building structure is investigated. The deformation influence line of the slope can be plotted based on the displacement vectors and the plastic zones. The slope stability analysis results demonstrate that the most probable sliding plane is within the fill and silty soils. The river scour has impact on the slope movement and the movement increase under the heavy precipitation conditions and might result in the adverse effect on the adjacent building. The site monitoring results are consistent with the analytical results.

Key words: Slope Stability, Numerical Analysis, SLIDE, FLAC3D