| 北京市北山泥石流分布规律及形成过程 |
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| 引用本文： | 董桂芝,赵波.北京市北山泥石流分布规律及形成过程[J].城市地质,1994(4):8-15. |
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| 作者姓名： | 董桂芝 赵波 |
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| 作者单位： | 北京市地质研究所 |
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| 摘 要： | 北京北山泥石流的分布受构造控制，呈北东方向展布。其分布在时间上和空间上均有一定的规律可寻。一条泥石流沟谷的形成从开始到结束，概括分为形成、位移和堆积。区内泥石流的形成主要有三种形式：以水力侵蚀为主，以坡面侵蚀为主和以沟源崩、滑塌形式触发沟床物质活动而形成的泥石流。
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| 关 键 词： | 泥石流 分布规律 形成过程 |
THE DISTRIBUTION RULE AND FORMATIVE PROCESS OF MUDFLOW IN NORTHERN MOUNTAIN OF BEIJING |
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| Dong Guizhi, Zhao Bo, Wei Jinglian.THE DISTRIBUTION RULE AND FORMATIVE PROCESS OF MUDFLOW IN NORTHERN MOUNTAIN OF BEIJING[J].City Geology,1994(4):8-15. |
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| Authors: | Dong Guizhi Zhao Bo Wei Jinglian |
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| Institution: | Geological institute of Beijing |
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| Abstract: | The mudflows in northern mountain of Beijing are controlled by geological structure to form NE-trending belts, and have some distribution rules in temporal and spatial. The formative process of one mudflow from beginning to end could includes the formation stage, the moving stage, and the accumulation stage. The origin of mudflow in this region is divided into three styles: 1) dominated by hydraulic erosions, 2) dominated by domatic erosions, and 3) the moving materials of valley bed are caused by collapse or sliped collapse at valley source. |
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| Keywords: | northern mountain of Beijing mudflow distribution rule formative process hydraulic erosion domatic erosion collapse and sliped collapse materials of valley bed |
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