土工基础

›› 2014, Vol. 28 ›› Issue (5): 12-15.

• 工程实录 • 上一篇    下一篇

唐家湾东边坡渗流及稳定性分析与防治措施

何金迅,王杰光,黄创杰   

  1. （桂林理工大学  土木与建筑工程学院 ，广西桂林 541004）
  • 收稿日期:2013-11-19 出版日期:2014-10-20 发布日期:2014-10-28
  • 作者简介:何金迅（1988-），男，研究生在读，研究方向为地基基础工程与岩土工程数值分析。

Tangjiawan Eastern Slope Seepage and Stability Analyses and Mitigation Measures

HE Jinxun, WANG Jieguang， HUANG Chuangjie
   

  1. (College Civil and Architectural Engineering, Guilin University of Technology, Guilin 541004)
  • Received:2013-11-19 Online:2014-10-20 Published:2014-10-28

摘要： 水库水位的上升和下降将导致库岸边坡体内地下水渗流场的变化, 进而引起边坡的失稳破坏。以工程勘察资料为基础，论述了唐家湾东边坡的地质工程条件，运用Geoslope软件进行了库水位变化的渗流场模拟；采用考虑基质吸力影响剩余推力法对边坡在库岸水位升降变化的情况下进行稳定性计算，并对边坡稳定性进行了分析与评价；最后结合实际工程提出防治方案并分析了监测的结果，表明该方案能有效地控制边坡的整体变形。

关键词: 边坡, 库水位升降, 渗流模拟, 稳定性分析, 防治方案与监测

Abstract: The seepage field change and slope instability induced by the fluctuation of the reservoir pool levels are presented in this paper. The engineering geologic conditions of Tangjiawan Eastern Slope are discussed based on the geotechnical engineering investigation data. The seepage fields under the pool level fluctuations are numerically simulated by using GeoSlope software. The slope stability of the Eastern Slope under the pool level fluctuation is analyzed by considering the matric suction in the soil mass and its effect on the residual thrust force in the analysis. The mitigation measures are proposed accordingly. The construction monitoring data indicate that this proposed mitigation method is effectively controlled the deformation of the reservoir slope.

Key words: Reservoir Slopes, Pool Level Fluctuations, Seepage Simulation, Stability Analysis, Mitigation and Monitoring