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首页> 外文会议>World Landslide Forum 3, Volume 4: Discussion Session >Analysis on the Basic Characteristics and Formation Mechanism Landslide under Rainfall Conditions and River Erosion
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Analysis on the Basic Characteristics and Formation Mechanism Landslide under Rainfall Conditions and River Erosion

机译：降雨条件和河流侵蚀条件下滑坡的基本特征及成因机理分析

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摘要

At 21:30 p.m.of the 16th in July, 2009, the slide has been taken place in the Dafengtan of Gufeng village of Fankuai town of Xuanhan of Sichuan in China.The volume of slide is about 50×104m3, the maximum sliding distance is 40m, and about 10×104m3 sliding body substances run into the river to bloke more than half of the river (about 40m), sliding material diverted river, which cause collapse of public housing and destruction of related facilities, economic loss is large.Based on geology and precipitation, it analysis comprehensively the formation mechanism of the landslide and explains the reasons for the formation of the disaster.The landslide is the result of many factors, but the role of each factor is different.The main factors are storm water, geological conditions of being easy to slide, and irrational human activities.Powerful rain played an erosion, jacking, wedge cracking, motivate role.The course of the landslide includes four steps: namely groundwater convergence-jacking the landslide body, river rise-scouring the foot, squeeze-wedge crack and collapse crack-slide.It has some guidance for prevention disaster work of disaster risks point in Southwest China to further study the formation conditions and the presence mechanism of Gufeng village landslide in Fan Kuai town.
机译：2009年7月16日21:30 pm发生在中国四川宣汉市范开镇古峰村大丰滩滑坡，滑坡体积约为50×104m3，最大滑坡距离为40m，约10×104m3的滑体物质流入河中，使一半以上的河（约40m）滑入河中，滑体分流河道，造成公共房屋倒塌及相关设施破坏，经济损失较大。从地质和降水两方面，综合分析了滑坡的形成机理，并解释了灾害形成的原因。滑坡是多种因素共同作用的结果，但各个因素的作用不同。易滑的地质条件和人类不合理的活动。强降雨起到了侵蚀，顶升，楔裂，激励的作用。滑坡的过程包括四个步骤：滑坡体，河涨冲脚，挤压楔裂和崩塌裂隙滑坡。为进一步研究西南古风村滑坡的形成条件和存在机理，为我国西南地区灾害风险点的防灾工作提供了指导。范Ku镇。

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  • 来源
  • 会议地点 Beijing(CN)
  • 作者

    Maolin Deng; Qiang Xu; Bei Han; Qun Zhang; Feng Wang;

  • 作者单位

    State Key Laboratory of Geo-hazard Prevention and Geoenvironment Protection,Chengdu University of Technology, Chengdu;

    State Key Laboratory of Geo-hazard Prevention and Geoenvironment Protection,Chengdu University of Technology, Chengdu;

    State Key Laboratory of Geo-hazard Prevention and Geoenvironment Protection,Chengdu University of Technology, Chengdu;

    State Key Laboratory of Geo-hazard Prevention and Geoenvironment Protection,Chengdu University of Technology, Chengdu;

    State Key Laboratory of Geo-hazard Prevention and Geoenvironment Protection,Chengdu University of Technology, Chengdu;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 滑坡;
  • 关键词

    sliding mechanism; river erosion; rainfall; jacking; soil slope;

    机译：滑动机制河水侵蚀降雨顶举土壤坡度;

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