贵州大方县医院旧址斜坡变形特征及稳定性研究  

A Study of Deformation Characteristics and Stability of Slope at the Former Site of Dafang County Hospital in Guizhou Province

作　　者：林德洪[1] 何旭东[1] 田维强[1] LIN De-hong;HE Xu-dong;TIAN Wei-qiang(The 114th Geological team,Guizhou Bureau of Geology and Exploration and Exploitation of Mineral Resources,The Second Engineering Survey Institute,Guizhou Bureau of Geology and Exploration and Exploitation of Mineral Resources Co.,Ltd.,Zunyi,Guizhou 563000)

机构地区：[1]贵州省地质矿产勘查开发局114地质队,贵州省地矿局第二工程勘察院有限公司,贵州遵义563000

出　　处：《四川地质学报》2021年第2期277-282,共6页Acta Geologica Sichuan

基　　金：贵州省地矿局青年科研项目[黔地矿科合(2015)13号]。

摘　　要：通过对贵州大方县医院旧址一带变形斜坡的变形特征及地质环境条件进行详细勘查,分析研究了斜坡裂缝特征、斜坡区岩土结构特征等,总结了变形破坏机理。基于强度折减法及有限元数值法对斜坡稳定性进行稳定性计算,结果与现场较为吻合。认为该斜坡变形为不均匀沉降变形,受降雨及地下水动态变化影响明显,发生突发性滑动可能性小。Based on the detailed investigation of the deformation characteristics and geological conditions of the deformed slope at the former site of the Dafang County Hospital in Guizhou Province,this paper has a discussion on the characteristics of the slope cracks,rock and soil structure in the slope area and deformation and failure mechanism of the slope.The stability of the slope is calculated by means of the strength reduction method and finite element numerical method.The calculation results are in good agreement with the field data.It is considered that the slope deformation belongs to non-uniform settlement deformation which is obviously affected by rainfall and groundwater dynamic change with a low possibility of sudden sliding.

关 键 词：变形斜坡 滑坡 地质环境 稳定性计算 稳定系数 

分 类 号：P642.2[天文地球—工程地质学]