高边坡稳定性案例分析及支护结构优化设计  

Case Analysis on High Slope Stability and Optimization Design of Supporting Structure

作　　者：王德亮[1] 聂庆科[1] 黎培徳 占否平 

机构地区：[1]河北建设勘察研究院有限公司,河北石家庄050031 [2]大连西太平洋石油化工有限公司,辽宁大连116600

出　　处：《探矿工程（岩土钻掘工程）》2017年第7期67-70,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling

摘　　要：根据碾子沟煤矿土质高边坡再次失稳的情况,结合现场勘察资料,对滑坡失稳原因进行了分析。运用ABAQUS有限元分析软件并采用抗剪强度折减系数法进行了数值计算,得出了土体在饱和状态下的安全系数及滑动面等参数,并分析了滑坡潜在的破坏过程。根据相关规范规定,运用折线滑动面及传递系数法隐式解的概念对滑体下滑力进行了计算,为优化设计提供依据。通过优化支护结构设计,减少了降雨对边坡的不利影响,遏制了滑坡变形。According to a case of once again high soil slope instability in Nianzigou coal mine and combined with the field survey data, the analysis is carried out on the causes of landsliding instability. The numerical calculation is made by using ABAQUS finite element analysis software and the shear strength reduction coefficient method, the parameters of the safety factor and the sliding surface of the soil under the saturated state are obtained, and the potential damage process of the landslide is analyzed. Based on the relevant provisions of specifications, the landslide sliding force is calculated by using the concept of polyline sliding surface and implicit solution of transfer coefficient method to provide the basis for optimization. By optimizing the design of support structures, the adverse impact of rainfall on the slope is reduced and the slope deformation can be controlled.

关 键 词：高边坡 滑坡失稳 支护 折减系数法 传递系数法 

分 类 号：TD824.7[矿业工程—煤矿开采] P642.22[矿业工程—矿山开采]