贵州某硬、软间层滑坡形成机理及稳定性评价  

Formation Mechanism and Stability Evaluation of a Hard and Soft Interlayer Landslide in Guizhou

作　　者：陈开能 CHEN Kaineng(Guizhou Nonferrous Geological Engineering Survey Company,Guiyang 550002,Guizhou,China)

机构地区：[1]贵州有色地质工程勘察公司,贵州贵阳550002

出　　处：《工程技术研究》2023年第2期28-30,共3页Engineering and Technological Research

摘　　要：间层指岩性不同的两巨厚岩石大层相间。文章以贵州某硬、软间层牵引式顺层岩质滑坡为例,对该滑坡形成机理进行分析,认为硬、软岩层间层组成的顺层岩质斜坡滑坡主滑带一般分布在两硬岩间的软岩间层中。通过滑坡稳定性分段计算分析,滑坡主滑段稳定性较滑坡整体稳定性差,符合牵引式滑坡沿斜坡坡脚自下而上逐级牵引变形破坏的特征。此滑坡稳定性计算方法和评价过程对于类似地质结构的滑坡研究与防治具有一定的借鉴意义。The interlayer refers to the interbedding of two huge thick rock layers with different lithology. Taking a hard and soft interlayer tractive bedding rock landslide in Guizhou as an example, this paper analyzes the formation mechanism of the landslide. It is considered that the main sliding section of bedding rock slope landslide composed of hard and soft interlayer is generally distributed in the soft interlayer between two hard rocks. Through the calculation and analysis of landslide stability in sections, the stability of the main sliding section of the landslide is worse than the stability of the overall landslide, which is in line with the characteristics of the tractive landslide deformation and failure step by step from the bottom to the top along the slope toe.The calculation method and evaluation process of landslide stability have certain reference significance for landslide research and prevention of similar geological structures.

关 键 词：间层 顺层 牵引式 岩质滑坡 主滑段 稳定性 

分 类 号：P642.22[天文地球—工程地质学]