GIS支持下降雨滑坡的启动机制研究与数字仿真

李先华; 林珲; 陈晓清; 张登荣; 朱红旗; 李梅; 赵军; 何易平

GIS支持下降雨滑坡的启动机制研究与数字仿真

李先华^1,2,3,
林珲¹,
陈晓清³,
张登荣⁴,
朱红旗²,
李梅²,
赵军²,
何易平³

1.
香港中文大学地球信息科学实验室香港,
2.
华东师范大学地理系河口与海岸研究所,遥感考古联合实验室,上海260032;
3.
中国科学院水利部成都山地灾害与环境研究所,成都610041;
4.
浙江大学地球科学系

基金项目:

中国科学院特别支持领域;山地灾害滑坡泥石流基础研究资助(编号;962206);香港特区政府研究资助局(CVHK4334/98E及CVHK/99H)

详细信息

作者简介:
李先华(1948-),男,研究员,博士生导师,主要专业方向为遥感与地理信息系统.Email:lxhcn@yahoo.com.cn

中图分类号: P642.22
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出版历程
- 收稿日期: 1999-10-27
- 修回日期: 2000-02-22
- 刊出日期: 2001-04-22

GIS-AIDED STUDY AND NUMERICAL SIMULATION OF INITIATION MECHANISM OF LANDSLIDE DUE TO PRECIPITATION

1.
Chinese University of HONG KONG, HONG KONG;
2.
Shanghai East China Normal University, Shanghai 260032;
3.
Chengdu Institute of Mountain Harzards and Enuironment,CAS&MWC,Chengdu　610041;
4.
Zhejiang University,Hangzhou　313000

摘要

摘要: 大气降雨对滑坡体的含水量和容重均有影响, 该影响具有一定的时间进程, 同时滑坡滑带土的含水率对内摩擦角和内聚力均有一定的影响。本文提出了滑坡启动的两种不同机制。通过降水滑体含水率滑体容重、滑带土内摩擦角、内聚力以及它们与滑坡稳定系数的定量关系及其时间效应, 建立起滑坡启动的速度、推力、方向和启动时间的预测、预报模型。
- 滑坡 /
- 启动机制 /
- 数字仿真
Abstract: In this paper the influence of atmospheric precipitation on moisture content and volume weight landslide body and hence the influence moisture content in soil on internal friction angle and cohesive force are discussed. Based on these influences, two different initiation mechanisms for landslide are presented. The models for forecasting initial velocity, pushing force, direction, and time of initiation are established based on these relationships involving factors of precipitation moisture content volume weight and internal friction angle cohesive force stability. At the same time, numerical simulation of landslide initiation mechanisms is accomplished by GIS.
- Landslide /
- Initiation mechanism /
- Numerical simulation

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参考文献(1)

[1] 　蒋忠信、陈国亮.云南苏家坪滑坡的岩土力学参数
[A].地质灾害国际交流论文集
[C].成都:西南交通大学出版社,1997,(6):138.Jiang Zhongxin,Chen Guoliang.International Exchange Papers onGeology Disaster.Chengdu:Publishing House of Southwest JiaoTongUniversity.1997,(6):138.

[2] 　胡广韬等.滑坡动力学
[M].北京:地质出版社,1995,45.Hu Guangtao et al.Landslide Dynamics.Beijing:Geological Publishing House.1995,45.

[3] 　黄文颐.土的工程性质
[M].北京:水利电力出版社,1983,286.Huan Wenyi.Soil Engineering Characteristics.Beijing:PublishingHouse of Water Conservancy and Electronic Power.1983,286.

[4] 　中国科学院成都山地灾害与环境研究所.山洪泥石流滑坡灾害及防治
[M].北京:科学出版社,1994,335.Institute of ChengDu Mountain Disaster and Environment of ChineseAcademy of Sciences.The Disaster and Prevention of The TorrentialFlood,Debris Flow and Landslide.1994,Beijing:Science Press,1994,335.

[5] 　黄润秋等.高边坡物质运动全过程模拟
[M].成都:成都科技大学出版社,1993,53.Huang Runqiu et al.The Whole Process Simulation of Movement ofMatter.Chengdu:Publishing House of ChengDu Sci.&Tech.University.1993,53.

[6] 　文康等.地表径流过程的数字模拟
[M].北京:水利电力出版社,1991,53～54.Wen Kang et al.Digital Simulation of The Surface Runoff.Beijing:Publishing House of Water Conservancy and Electronic Power.1991,53～54.

[7] 　许浩春.苏家坪滑坡稳定性评价
[J].工程勘察,1986(6):38.Xu Haochun,Landslide Stability Evaluation of Su Jia Ping.Engineering Reconnaissance.1986,(6):38.

[8] 　李先华等.数字地形图上滑坡动态方向稳定系数的计算与滑坡滑动方向的确定
[J].岩石力学与工程学报,1999,(3).Li Xianhua,et al.Stability Calculation of The Landslide DynamicDirection and Definition of Landslide Glide Direction in Digital Topographic Map.Chinese Journal of Rock Mechanics and Engineering.1999,(3).

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