贵州石阡温泉大道滑坡的稳定性分析及治理措施

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。

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

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.