文县郭家坡滑坡形成机理与稳定性研究

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英文篇名：Study on Formation Mechanism and Stability of Guojiapo Landslide in Wenxian County 作者：田运涛 ; 景博 ; 王高峰 ; 郭宁 ; 杨强 英文作者：TIAN Yuntao;JING Bo;WANG Gaofeng;Hydrogeological and Environmental Geological Survey Center,China Geological Survey;Xi'an Survey and Mapping Institute;Geological Engineering and Mapping Institute of Chang'an University; 关键词：地震滑坡 ; 形成机理 ; 裂隙 ; 稳定性 ; 文县 英文关键词：earthquake landslide;;formation mechanism;;fracture;;stability;;Wenxian County 中文刊名：ZGSB 英文刊名：Soil and Water Conservation in China 机构：中国地质调查局水文地质环境地质调查中心;西安市勘察测绘院;长安大学地质工程与测绘学院; 出版日期：2019-02-05 出版单位：中国水土保持 年：2019 期：No.443 基金：中国地质调查局资助项目(DD20160281,12120115053701 语种：中文; 页：ZGSB201902023 页数：5 CN：02 ISSN：41-1144/TV 分类号：62-65+75

摘要

选择受地震影响的郭家坡滑坡作为研究对象,在滑坡孕灾背景条件调查、大比例尺平面测绘、工程地质勘查、岩土测试等基础上,对其发育特征和形成机制进行了研究,然后运用有限元模拟定量分析了滑坡现状稳定性。结果表明:地震是滑坡整体破坏的主要诱因,高陡斜坡和裂隙发育的地层是造成郭家坡滑坡发生多级滑动的内在因素,滑坡在降雨饱水工况和地震工况下局部处于不稳定状态。
        The paper took Guojiapo landslide which was affected by earthquake as a study object,studied the development characteristics and formation mechanism based on the survey of landslide disaster-pregnant background condition,large scale plane surveying and mapping,engineering geological exploration and geotechnical testing and quantitatively analyzed the current stability of the landslide by using finite element simulation. The outcomes show that earthquake is the main inducement of whole landslide failure. High and steep slope and the development of fractures are the internal factors that causes multi-stage sliding of Guojiapo landslide and the partial of the landslide is unstable under the conditions of precipitation saturation and earthquake.

引文

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