›› 2018, Vol. 32 ›› Issue (4): 389-392.

• 工程实录 • 上一篇    下一篇

广西某土岩混合型滑坡稳定性评价

王家斌,邓君君   

  1. (柳州市勘察测绘研究院,广西柳州 545006)
  • 收稿日期:2018-06-20 修回日期:2018-07-13 出版日期:2018-08-20 发布日期:2018-08-23
  • 作者简介:王家斌(1969-),男,高级工程师,研究方向为土木工程设计与施工。

Stability Evaluation of a SoilRock Mixed Landslide in Guangxi

WANG Jiabin, DENG Junjun   

  1. (Liuzhou Reconnaissance, Survey and Research Inst. Co., Liuzhou 545006)
  • Received:2018-06-20 Revised:2018-07-13 Online:2018-08-20 Published:2018-08-23

摘要: 介绍了广西某土岩混合型滑坡的地质环境条件及工程地质特征,结合某滑坡的物质组成及结构,对影响滑坡的稳定性因素进行了分析。采用极限平衡法计算了自重和暴雨工况下坡体的稳定性系数,根据计算结果及滑坡变形特征确定了该坡体天然工况下处于基本稳定状态;暴雨工况下,处于不稳定状态。结合坡体的稳定性状态预测了滑坡的变形趋势,采用“截排水工程+抗滑桩工程+挡土墙工程+监测工程”的综合治理措施能够有效的防止坡体进一步变形,消除地质隐患。

关键词: 滑坡, 稳定性分析, 极限平衡法

Abstract: The geological and environmental conditions as well as the engineering geological characteristics of a soilrock mixed landslide in Guangxi are presented in this paper. The stability factors that affecting the landslide are analyzed based on the material composition and structure of the landslide. The factor of safety of the slope under its self weight and heavy rain conditions are analyzed by the limit equilibrium method. According to the analytical results and the deformation characteristics of the landslide, it is determined that the slope is in a stable state under the selfweight condition only and is in an unstable state under the heavy rain condition. Prediction of the deformation trend of landslide is based on the stability nature of the slope. The compositional engineering treatment measures of “water interception and drainage measures plus antislide pile engineering as well as the retaining wall with fieldmonitoring project” can effectively minimize further potential deformation of the slope as well as the geological hazards.

Key words: Landslide, Stability Analysis, Limit Equilibrium Method