都匀某公路滑坡稳定性分析及治理方案探讨  

Stability analysis and treatment scheme of a highway landslide in Duyun City

作　　者：向刚[1] 孙乾征 张华湘[1] XIANG Gang;SUN Qian-zheng;ZHANG Hua-xiang(No.104 Geological Team,Guizhou Bureau of Geology and Mineral Exploration and Development,Duyun,Guizhou 558000)

机构地区：[1]贵州省地质矿产勘查开发局104地质大队,贵州都匀558000

出　　处：《四川地质学报》2022年第3期461-465,共5页Acta Geologica Sichuan

基　　金：贵州省地矿局地质科研一般科学研究项目(黔地矿科合[2019]8号、[2020]5号)。

摘　　要：通过对都匀市大河水库交通复建路k0+680—k0+820段滑坡勘查,查明滑坡边界、滑面、滑体厚度;结合地质环境条件、变形特征及破坏模式,形成因素是坡脚开挖、降雨及软弱夹层引起。采用极限平衡法进行稳定性评价,降雨下处于不稳定状态,提出“削方减载+格构锚索+裂缝充填+截排水沟+仰斜排水孔”综合治理方案。The landslide boundary,sliding surface and the location of shear outlet were researched through the investigation of the landslide in the section K0 + 680-K0 +820 of Jiaofujian Road,Dahe Reservoir,Duyun City.Combined with geological environmental conditions,deformation characteristics and failure mode,the forming factors are slope foot excavation,rainfall and weak interlayer.The limit equilibrium method was used to evaluate the stability,and it was in an unstable state under rainfall.The comprehensive management scheme of "load reduction + lattice anchor cable + crack filling + drain ditch+ inclined drainage hole" was proposed.

关 键 词：公路边坡 成因分析 滑坡稳定性 治理方案 

分 类 号：P642.22[天文地球—工程地质学]