汶川县连山大桥泥石流的发育特征及危险性评价
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摘要
连山大桥泥石流位于四川省汶川县,受汶川地震影响,流域内崩滑产生的松散固体物增多,使泥石流易发程度增大。2013年7月,受连续强降雨的影响,该流域内爆发一系列规模不等的泥石流。通过对泥石流现场调查搜集的资料,对连山大桥泥石流的发生条件以及动力学特征进行具体分析,并对连山大桥泥石流进行了危险性评价,得出如下结论:连山大桥泥石流为暴雨沟谷型泥石流,正处于发展期,表现为极易发、高度危险,在强降雨或余震的影响下暴发泥石流的可能性较大。
Lianshan Bridge debris flow is located in Wenchuan county,Sichuan province.Affected by Wenchuan earthquake,the growing loose deposits give rise to the susceptibility of debris flow.A series of different scales of debris-flows break out in this gully caused by continuous strong rainfalls in July 2013.Based on site investigation,a detail analysis on occurrence conditions and dynamics characteristics of Lianshan bridge debris-flow is conducted,the risk assessment of the debris-flow is performed.Finally,a conclusion is drawn that LIanshan bridge debris flow is a strong rainfall gully type which is under developing stage,highly dangerous,and easily reoccur during strong rainfall or aftershock.
引文
[1]郭嘉仁.四川泥石流灾害发展趋势[J].中国减灾,1998,8(2):44~46.Guo J R.Tendency of Sichuan Debris-flow Disaster[J].Disaster Reduction In China,1998,8(2):44~46.(in Chinese)
    [2]程思,易加强.汶川县地质灾害成因及防治对策[J].山西水土保持科技,2007,9(3):1~4.Cheng S,Yi J Q.Cause and countermeasure of Wenchuan geological disaster[J].Soil and Water Conservation Science and Technology in Shanxi,2007,9(3):1~4.(in Chinese)
    [3]张永双,成余粮,姚鑫等.四川汶川地震—滑坡—泥石流灾害链形成演化过程[J].地质通报,2013,32(12):1900~1910.Zhang Y S,heng Y L,Yao X,et al.The evolution process of Wenchuan earthquake-landslide-debris flow geohazard chain[J].Geological Bulletin of China,2013,32(12):1900~1910.(in Chinese)
    [4]崔鹏,韦方强,陈晓清等.汶川地震次生山地灾害及其减灾措施[J].中国科学院院刊,2008:317~323.Cui P,Wei F Q,Chen X Q,et al.Geo-hazards in Wenchuan Earthquake Area and Countermeasures for Disaster Reduction[J].Bulletin of the Chinese Academy of Sciences,2008:317~323.(in Chinese)
    [5]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):1115.Cui P,Yang K,Chen J.Relationship Between Occurrence of Debris Flow and Antecedent Precipitation:Taking the Jiangjia Gully as An Example[J].Science of Soil and Water Conservation,2003,1(1):1115.(in Chinese)
    [6]潘华利,欧国强,黄江成等.缺资料地区泥石流预警雨量阈值研究[J].岩土力学,2012,33(7):2122~2126.Pan H L,Ou G Q,Huang J C,et al.Study of rainfall threshold of debris flow forewarning in data lack areas[J].Rock and Soil Mechanics,2012,33(7):2122~2126.(in Chinese)
    [7]中华人民共和国行业标准.泥石流灾害防治工程勘查规范(DZ/T 0220-2006)[S].北京:中国标准出版社,2006.The Professional Stanalards of the People's Republic of China.Specification of geological investigation of debris flow stabilization[S].Beijing:China Standards Press,2006.(in Chinese)
    [8]中华人民共和国行业标准.泥石流灾害防治工程设计规范(DZ/T 0239-2004)[S].北京:中国标准出版社,2007.The Professional Stanalards of the People's Republic of China.Specification of engineering design of debris flow stabilization[S].Beijing:China Standards Press,2007.(in Chinese)
    [9]四川省水利厅.四川省中小流域暴雨洪水计算手册[M].1986.Water Conservancy Department of Sichuan Province.Manual calculation of storm flood in small basin of Sichuan Province[M].Chengdu:Sichuan Provincial Water Resoucl Depatment,1986.(in Chinese)
    [10]刘希林,唐川.泥石流危险性评价[M].北京:科学出版社,1995,15~20.Liu X L,Tang C.The Hazards Assessment of Debris Flow[M].Beijing:Science Press,1995,15~20.(in Chinese)

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