[1]唐川,铁永波.汶川震区北川县城魏家沟暴雨泥石流灾害调查分析[J].山地学报,2009,(05):625.
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汶川震区北川县城魏家沟暴雨泥石流灾害调查分析()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2009年05期
页码:
625
栏目:
山地学报
出版日期:
2009-09-15

文章信息/Info

作者:
唐川;铁永波;
成都理工大学地质灾害防治与地质环境保护国家重点实验室;
关键词:
泥石流暴雨汶川地震起动过程北川县城
文献标志码:
A
摘要:
2008-09-24强降雨过程导致汶川震区北川县城魏家沟泥石流暴发,对老北川县城造成了严重的破坏。由于这场泥石流灾害发生在汶川地震高烈度区,是地震与降雨共同作用下的结果,研究其形成与成灾过程,对于进一步认识强震区泥石流发育特征具有重要的意义。根据现场调查和高分辨率航空图像解译,分析了魏家沟泥石流流域特征,特别是地震条件下的泥石流物源特征,在此基础上讨论了泥石流起动过程和堆积过程。魏家沟泥石流典型实例表明了汶川震区泥石流已进入一个新的活跃期。因此,应该开展对汶川地震区的泥石流风险评估和监测、早期预警等研究,采取有效的工程措施控制泥石流的发生和危害。

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更新日期/Last Update: 2009-09-15