土工基础

›› 2014, Vol. 28 ›› Issue (5): 16-19.

• 工程实录 • 上一篇    下一篇

贵州石阡温泉大道滑坡的稳定性分析及治理措施

马 宁，赵叶江   

  1. （贵州有色地质工程勘察公司，贵阳 550005）
  • 收稿日期:2013-10-08 出版日期:2014-10-20 发布日期:2014-10-28
  • 作者简介:马宁（1982-），男，工程师，研究方向为水文地质、工程地质的勘察与设计。

Stability Analysis and Mitigation Solutions of a Landslide at Shiqian Springs Road in Guizhou

MA Ning， ZHAO Yejiang   

  1. （Guizhou Nonferrous Geological Engineering Investigation Co., Guiyang 550005）
  • Received:2013-10-08 Online:2014-10-20 Published:2014-10-28

摘要： 通过贵州石阡温泉大道滑坡的地质环境条件、地层特征及成因、评价、形态综合分析，采用折线滑动法对滑坡沿不同层面滑动的稳定性进行了计算，得出相应的稳定系数，提出了有效的滑坡治理措施。调查表明：位于斜坡地带的边坡，在工程施工、长时间暴雨冲刷等作用下，易使边坡体浅表层重量急剧增大，滑动面强度降低，易发生滑坡等地质灾害。

关键词: 工程地质, 滑坡成因, 稳定性分析, 治理措施

Abstract: The case history of a landslide at Shiqian Springs Road in Guizhou is presented in this paper. The site environmental geology conditions, geotechnical information of the subsurface conditions are analyzed based on the site specific investigation dada. The stability analyses along different soil strata are performed by using block failure method. The factor of safety of the site is obtained as a result of the analysis and the mitigation measures are proposed. The investigation results indicate: The slope is located on a daylight site. During the long construction period and under prolonged heavy precipitation, the unit weight of the surficial soil is increased and the shear strength of the sliding surface is also reduced, therefore, the geological hazards, such as landslide, might be triggered.

Key words: Engineering Geology, Landslides , Failure Mechanism, Stability Analysis, Mitigation Measures