[1]刘惠军,任光明.典型硬质岩区泥石流的发育研究[J].山地学报,2008,(03):372.
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典型硬质岩区泥石流的发育研究()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2008年03期
页码:
372
栏目:
山地学报
出版日期:
2008-05-15

文章信息/Info

作者:
刘惠军;任光明;
成都理工大学工程地质研究所;成都理工大学工程地质研究所 四川成都610059;四川成都610059
关键词:
泥石流; 比降; 硬质岩区; 不合理人类工程活动
文献标志码:
A
摘要:
泥石流一般发育在岩性强度低、岩性较为破碎的地区,由于岩性差,岩体较为破碎,它易形成泥石流的物源,配合一定的地形条件和气象条件,造成泥石流发生。硬质岩区由于其强度高,不容易发生崩塌、滑坡等,形成泥石流物源。本文通过一个硬质岩区发生的泥石流调查表明:在硬质岩区,由于不合理的人类活动,造成降雨水时,水从高处经过硬质岩崩塌坡积物向下流动时,由于在高比降情况下,水的侵蚀能力强,坡形陡,硬质岩崩塌坡积物容易垮塌为其提供了物源。它的发生频率高,对下游危害大,因此,在这种地区进行工程活动时,必须对这种现象引起高度的重视。

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更新日期/Last Update: 2008-05-15