| 强降雨在山地灾害链成灾演化中的关键控制作用 |
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| 引用本文： | 崔云,孔纪名,田述军,阿发友.强降雨在山地灾害链成灾演化中的关键控制作用[J].山地学报,2011,29(1). |
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| 作者姓名： | 崔云 孔纪名 田述军 阿发友 |
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| 作者单位： | 1. 中国科学院水利部成都山地灾害与环境研究所,四川成都610041;中国科学院研究生院,北京100049
2. 中国科学院水利部成都山地灾害与环境研究所,四川成都,610041 |
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| 基金项目： | 国家自然科学基金重点项目(50639070)~~ |
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| 摘 要： | 经历了2009年的干旱后,2010年雨季,中国西部山区山地灾害频繁暴发并演化成灾害链,强降雨起到了关键控制作用。降雨使山地灾害链极大扩展了空间影响范围,加速了演化进程。选取灾害链演化中的滑坡、泥石流两个关键环节,构建力学模型,对降雨的控制激发作用进行分析,分别以贵州关岭滑坡-碎屑流灾害链、甘肃舟曲泥石流-堰塞湖灾害链为典型实例进行验证,最终得出结论:强降雨激发滑坡、泥石流形成的控制作用是通过特殊的水作用机制体现的,久旱强雨是灾害链预警防控的关键时段。
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| 关 键 词： | 强降雨 山地灾害链 关岭滑坡 舟曲泥石流 |
The Critical Role for Heavy Rainfall in the Evolution of the Mountain Hazards Chains |
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| CUI Yun,KONG Jiming,TIAN Shujun,A Fayou.The Critical Role for Heavy Rainfall in the Evolution of the Mountain Hazards Chains[J].Journal of Mountain Research,2011,29(1). |
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| Authors: | CUI Yun KONG Jiming TIAN Shujun A Fayou |
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| Abstract: | Experienced drought in 2009,the rainy season of 2010 became a high time in the evolution of mountain hazards in the mountains in western China which is because of the heavy rain playing a key role.Heavy rain expands the affected space of hazards and speed up the process of chain evolutionary.In order to analyze the key role of rainfall in the stimulating hazards chains evolution,mechanical model is built by landslide and debris flow as two key areas in hazards chains,then the result is verified by Guanling ... |
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| Keywords: | Heavy rainfall mountain hazards chains Guanling landslide Zhouqu debris flow |
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