汶川地震滑坡与地震参数及地质地貌因素之间的相关关系.pdfVIP

Journal ofEngineeringGeology工程地质学报 1004-9665／2010／18(1)-0008—07 汶川地震滑坡与地震参数及地质地貌因素之间的相关 关系 李秀珍①② 孔纪名①② 崔 -X-② 田述军② (①中国科学院山地灾害与表生过程重点实验室成都610041) (②中国科学院水利部成都山地灾害与环境研究所成都610041) 摘要在对汶川地震诱发的典型滑坡进行野外调查和相关资料收集、分析和整理的基础上，对汶川地震滑坡与地震参数及 坡度、岩土体特性等地质地貌因素之问的相关关系进行了统计分析。结果表明：(1)汶川地震滑坡主要发生在Ⅶ一Ⅺ烈度区， 泥岩、板岩、片岩、千枚岩等软岩类和土质类岩性是汶川地震滑坡的易发岩性，其次是软硬岩组合类，在统计的47个典型滑坡 中，花岗岩、碳酸盐岩等硬岩类中发生的滑坡最少，而且由汶川地震直接导致复活的老滑坡也比较少。 关键词汶川地震滑坡地震参数地质地貌因素相关关系 中图分类号：P642．22文献标识码：A STATISTICALRELATIONSBETWEENLANDSL玎)ES耵旧UCEDBYWEN． CHUAN AND EARTHQUAKE EARTHQUAKE ICALASWELLASGEOMORPHoLOGICAL FACTORS LIXiuzhen①⑦KONG CUIYun⑦TIAN Jiming①② Shujun② Hazardsand ofMountain Processes，Chinese (①嘶La,boratory Suo(ace AcademyofSciences，Chengdu610041) InstituteMountainHazardsand Environment，ChineseofSciences，Chengdu (②Chengduof Academy 610041) AbstractThis isbasedon ofthelandslidesinducedWenchuan andcollection paper investigations by Earthquake and oftherelateddata．It thestatisticalrelationsbetweenthe landslidesand analysis presents earthquake—induced otherfactors and factors．Theresultsshow includingearthquakeparameters，geologicalgeomorphological that：(1) in thelandslidescausedWenchuan occurredtheVII—XI wererather by earthquakemainly intensitydistricts，there fewerlandslidesinthe andbelow landslidesoccurredin VI districts；(2)the intensity earthquake—inducedmainly distributedin 200kmfromthe thearea300kmfromthe intensively thear