摘要
由于人类活动、河流冲刷坡脚等原因导致山西省偏关县西沟村形成滑坡,严重威胁当地居民的生命财产安全。在治理滑坡灾害前,需进行稳定性分析,确定边坡稳定情况。文章以山西省偏关县西沟村滑坡为例,基于地质、岩层、外部环境等资料,用理正岩土软件3.1中的理正边坡稳定分析软件,采用简化Janbu法计算分析揭露的滑动面,指定“折线”型滑面计算安全系数,并对滑坡的稳定性进行分析与评价。结果表明,滑坡在自重作用下处于稳定的状态,在暴雨时处于基本稳定状态。根据滑坡评价结果,提出滑坡变形破坏综合防治建议。
The landslide in Xigou Village,Pianguan County,Shanxi Province was caused by human activities rivers scouring the slope toe and other reasons,which seriously threatened the lives and property of local residents.Before landslide control,stability analysis is required to determine the slope stability.Taking Xigou Village landslide in Pianguan County,Shanxi Province as an example,this paper uses the Lizheng slope stability analysis software in Lizheng Geotechnical Software 3.1 based on geological,rock stratum,external environment and other data,uses the simplified Janbu method to calculate and analyze the exposed sliding surface,specifies the“broken line”type sliding surface to calculate the safety factor,and analyzes and evaluates the stability of the landslide.The results show that the landslide is in a stable state under the action of its own weight,and is basically stable in a rainstorm.According to the landslide evaluation results,the comprehensive prevention and control suggestions for landslide deformation and damage are proposed.
作者
董伟
DONG Wei(China Railway 14th Bureau Group Co.,Ltd.,Xuzhou 221000,China)
关键词
滑坡
安全系数
稳定性分析
landslide
safety factor
stability analysis
