汶川地震后成都平原地面塌陷特征及对策
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摘要
汶川地震后两年,成都平原多个县区出现地面塌陷。就地质环境而言,成都平原不具备自然地下空洞引发大型地面塌陷的地质条件。现有地面塌陷均为人为地下空洞在自然或人为因素下引发。汶川地震缩短了产生地面塌陷的时间,致使成都平原在地震后两年内较高频率发生小规模地面塌陷。
Ground collapses occurred in Chengdu Plain two years after Wenchuan Earthquake.In terms of geo-environment,the plain doesn't have the geological conditions for underground caves.All the collapses there have resulted from man-made caves,started by either natural or man-made factors.The earthquake shortened the time of occurring and resulted in frequent small-scale collapse occurrences within two years after the earthquake.
引文
[1]徐恒力,等.环境地质学[M].北京,地质出版社,2009.
    [2]徐冠立,孙传敏,孙遥.成都平原微承压地下水成因机制及水质分析[J].成都:四川地质学报,2008,28(4):64-67.
    [3]四川省地矿局成都水文地质工程地质大队.成都平原水文地质工程地质综合勘察评价报告[R].1985.

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