基于Bishop条分法的边坡稳定分析及支护方案  

Slope stability analysis and support scheme based on the Bishop strip method

作　　者：何木 张飙 HE Mu;ZHANG Biao(Guangxi Guilin Geotechnical Institute of Hydrogeology and Engineering Geology,Guilin Guangxi 541002, China;College of Civil and Architecture Engineering, Guilin University of Technology,Guilin Guangxi 541004, China)

机构地区：[1]广西桂林水文工程地质勘察院,广西桂林541002 [2]桂林理工大学土木与建筑工程学院,广西桂林541004

出　　处：《探矿工程（岩土钻掘工程）》2020年第5期65-71,共7页Exploration Engineering:Rock & Soil Drilling and Tunneling

摘　　要：结合柳州市柳东新区物流港片区在建道路的边坡支护工程实例,分析由于道路工程的路堑设计施工造成的高差约35 m高边坡,基于极限平衡理论的Bishop条分法理论分析,使用理正岩土设计软件对边坡进行滑动面选择,并进行稳定性分析及剩余下滑力计算,探讨锚索桩-墙复合垂直抗滑结构的设计思路;通过承载力极限条件对桩的截面尺寸和配筋进行复合;同时介绍垂直支护结构以上边坡坡面处理、防护、排水方案;为今后在道路工程造成的高边坡类支护、治理工程提供参考。This paper discusses the design approach for the vertical anti-slide structure of the anchor cable and pile-wall combination through theoretical analysis of the Bishop strip method based on limit equilibrium theory,selection of the sliding surface of the slope by use of the Lizheng Rock Soil design software and stability analysis and calculation of the residual down-sliding force in the context of the slope support project for a road under construction in the logistics port area of Liudong New District of Liuzhou City,where the elevation difference of the slope caused by the design and construction of road cutting is about 35m high.Combination of the pile cross-section size and re-bars is conducted under the bearing capacity limit conditions;meanwhile,the slope surface treatment,protection and drainage scheme above the vertical support structure are also introduced.It may provide reference for the high slope support and treatment projects in road construction in the future.

关 键 词：边坡稳定性 路堑边坡 Bishop条分法 桩-墙复合抗滑结构 

分 类 号：U418.52[交通运输工程—道路与铁道工程]