汶川地震极震区震后高川乡泥石流降雨警戒模式
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
以汶川地震极震区绵阳市安县高川乡泥石流为例,在对其爆发历史及相应降雨资料的详细调查、收集基础之上,研究了高川乡泥石流发生的临界雨量特征,得到了该乡泥石流临界雨量Ic-R关系式,进而建立了高川乡泥石流发生的降雨警戒模式,得到该乡泥石流发生不同几率下的警戒基准线,并验证了该警戒模式具有较高可信度,可用于研究区泥石流预警分析中。
Taking the debris flow of Gaochuan Village in Anxian,Mianyang City as the research object,on the basis of detailed investigation and data collection of the debris flow events and corresponding rainfall,this paper studied the characteristics of critical rainfall of debris flows.And then the formula(R=-13Ic+524)of critical rainfall of debris flow in this area was obtained.Furthermore,a rainfall warning mode of debris flow was established.The early warning baseline of debris flow was determined in different probability.The early warning mode was proved that it had high reliability.So,it can be applied to the early warning analysis of debris flow.
引文
[1]杨顺,潘华利,王钧,等.泥石流监测预警研究现状综述[J].灾害学,2014,29(1):150-156.
    [2]崔鹏,韦方强,何思明,等.5·12汶川地震诱发的山地灾害及减灾措施[J].山地学报,2008,26(3):280-282.
    [3]唐川.汶川地震区暴雨滑坡泥石流活动趋势预测[J].山地学报,2010,28(3):341-349.
    [4]周伟,唐川,周春花.汶川震区暴雨泥石流激发雨量特征[J].水科学进展,2012,23(5):650-655.
    [5]Shied C L,Chen L Z.Developing the Critical Line of Debris-flow Occurrence[J].Journal of Chinese Soil and Water Conservation,1995,26(3):167-172.
    [6]崔鹏,杨坤,陈杰.前期降雨对泥石流形成的贡献——以蒋家沟泥石流形成为例[J].中国水土保持科学,2003,1(1):11-15.
    [7]李明熹.土石流发生降雨警戒分析及其应用[D].台湾:国立成功大学,2006.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心