摘要
滑坡勘查治理工程中滑坡滑动面深度的确定直接影响了后期滑坡稳定性的受力分析,并对滑坡治理工程的效果带来不必要的安全隐患,因此滑坡滑动面的确定对滑坡治理方案的选取起到直接的指导作用。本文以贵州省一处于蠕动变形期的老崩滑堆积层滑坡为例,在现场勘查和资料收集的基础上,分析了滑坡地质结构特征及形成原因,通过对滑坡区勘查钻孔采取深部位移监测,结合现场钻探资料,成功的确定了滑坡滑动面的位置。研究表明深部位移监测准确性较高,对堆积层滑坡滑面的确定可有效的弥补传统勘探手段的局限性,有效的解决了堆积层滑坡滑面难以判断的难题,为滑坡下一步设防工程的设计提供准确的地质资料,是复杂堆积层滑坡勘查的必备手段之一。研究为同类滑坡的防治工程提供参考依据,具有较强的推广意义。
The determination of the depth of the landslide sliding surface in landslide investigation and treatment engineering directly affects the stress analysis of the later landslide stability,and brings unnecessary safety hazards to the effectiveness of landslide treatment engineering.Therefore,the determination of the landslide sliding surface plays a direct guiding role in the selection of landslide treatment plans.This article takes an old landslide in Guizhou Province,which is in a period of creep deformation,as an example.Based on on-site investigation and data collection,the geological structure characteristics and formation reasons of the landslide are analyzed.Through deep displacement monitoring of the exploration boreholes in the landslide area,combined with on-site drilling data,the position of the landslide sliding surface is successfully determined.Research has shown that deep displacement monitoring has high accuracy and can effectively compensate for the limitations of traditional exploration methods in determining the sliding surface of landslides in accumulation layers.It effectively solves the problem of difficulty in determining the sliding surface of landslides in accumulation layers and provides accurate geological data for the design of the next stage of landslide prevention engineering.It is one of the essential means for the exploration of complex accumulation layer landslides.The research provides a reference basis for the prevention and control of similar landslides,and has strong promotional significance.
作者
唐文佳
阮凡
李军
何旭东
TANG Wen-jia;RUAN Fan;LI Jun;HE Xu-dong(Geological Brigade of Guizhou Geological and mineral exploration and development Bureau,Zunyi,563000)
出处
《地下水》
2025年第5期134-136,280,共4页
Ground water
基金
黔科合基础-ZK[2025]重点007
贵州地质灾害智防科技创新人才团队(黔地矿科合[2024]TD006号)
思南县地质灾害“隐患点+风险区”精细化调查评价(黔财资环[2023]87号)。
关键词
滑坡
钻孔测斜
滑动面
landslides
borehole inclinometers
sliding surfaces
