龙门山地区震后次生灾害发育分布规律研究
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摘要
为了研究龙门山地区在"5.12"地震后次生地质灾害的发育分布规律,在遥感解译资料的基础上,结合大量的现场复核调查,对龙门山地区的地震次生灾害在雎水河、安昌河、绵远河和石亭江流域内的发育分布与高程、距断层距离、坡度、坡向、岩性、坡体结构等地质要素的关系进行了研究,总结了各个地质要素对灾害发育分布的影响程度及其相互关系。为灾区建设与选址和同类高烈度区的工程建设提供了重要的基础信息。
In order to study the distribution and development laws of the secondary disaster in Longmenshan Area after Wenchuan earthquake on May 12th,2008,on the basis of remote sensing interpretation,combining with massive field investigation,we studied the relations between distribution and development laws of the secondary disaster in Longmenshan Area after earthquake and the geological factors including elevation,distance from fault,slope gradient,slope direction,lithology,structure of slope body,etc.in the basins of Jushui River,Anchang River,Mianyuan River and Shiting River.We summarize influential degrees of each geological factor on distribution and development of secondary disaster and the correlations between them.It provides important basic information for site selection,reconstruction in disaster area and projects of similar geological conditions.
In order to study the distribution and development laws of the secondary disaster in Longmenshan Area after Wenchuan earthquake on May 12th,2008,on the basis of remote sensing interpretation,combining with massive field investigation,we studied the relations between distribution and development laws of the secondary disaster in Longmenshan Area after earthquake and the geological factors including elevation,distance from fault,slope gradient,slope direction,lithology,structure of slope body,etc.in the basins of Jushui River,Anchang River,Mianyuan River and Shiting River.We summarize influential degrees of each geological factor on distribution and development of secondary disaster and the correlations between them.It provides important basic information for site selection,reconstruction in disaster area and projects of similar geological conditions.
引文
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[4]李勇,黄润秋.汶川8.0级地震的基本特征及研究进展[J].四川大学学报:工程科学版,2009,41(3):7-25.
[5]许冲,戴福初,姚鑫,等.汶川地震诱发滑坡灾害的数量与面积[J].科技导报,2009,27(11).
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