| 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 |
| |
| 引用本文： | 李秀珍,孔纪名,崔云,田述军.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[J].工程地质学报(英文版),2010,18(1):8. |
| |
| 作者姓名： | 李秀珍 孔纪名 崔云 田述军 |
| |
| 作者单位： | 1.中国科学院山地灾害与表生过程重点实验室 成都 610041 |
| |
| 基金项目： | 国家自然科学基金(40802072);;中科院“西部之光”人才培养计划项目(08R2140140);;四川省软科学研究计划项目;;中科院地震次生山地灾害应急考察项目(110900k291) |
| |
| 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间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～Ⅺ烈度区, Ⅵ度及以下烈度区中发生的滑坡较少； (2)汶川地震滑坡主要发生在距震中300km的范围内,且距震中200km的范围内滑坡分布最为集中； (3)汶川地震滑坡的易发斜坡坡度为30～50,其中30～40是汶川地震滑坡发育最为敏感的坡度； (4)汶川地震滑坡主要发生在600～1500m的高程范围内,在600～1000m高程范围内的中低山和丘陵区滑坡分布最为集中； (5)砂泥岩、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 |
STATISTICAL RELATIONS BETWEEN LANDSLIDES INDUCED BY WENCHUAN EARTHQUAKE AND EARTHQUAKE PARAMETERS, GEOLOGICAL AS WELL AS GEOMORPHOLOGICAL FACTORS |
| |
| LI Xiuzhen KONG Jiming CUI Yun TIAN Shujun.STATISTICAL RELATIONS BETWEEN LANDSLIDES INDUCED BY WENCHUAN EARTHQUAKE AND EARTHQUAKE PARAMETERS, GEOLOGICAL AS WELL AS GEOMORPHOLOGICAL FACTORS[J].Journal of Engineering Geology,2010,18(1):8. |
| |
| Authors: | LI Xiuzhen KONG Jiming CUI Yun TIAN Shujun |
| |
| Institution: | 1.2.Key Laboratory of Mountain Hazards and Surface Processes,Chinese Academy of Sciences,Chengdu 610041 |
| |
| Abstract: | This paper is based on investigations of the landslides induced by Wenchuan Earthquake and collection and analysis of the related data. It presents the statistical relations between the earthquake induced landslides and other factors including earthquake parameters,geological and geomorphological factors. The results show that: (1)the landslides caused by Wenchuan earthquake mainly occurred in the Ⅶ～Ⅺ intensity districts,there were rather fewer landslides in the Ⅵ and below intensity districts; (2)the earthquake induced landslides mainly occurred in the area 300 km from the epicenter,and intensively distributed in the area 200 km from the epicenter; (3)the slopes with the dip angle of 30～50,especially 30～40,are very easy to slide during Wenchuan Earthquake; (4)the earthquake induced landslides mainly distributed in the elevation range of 600～1500m,especially 600～1000 m; (5)soft rocks such as mudstone,shale,schist and so on,are the easiest to slide during Wenchuan Earthquake; the combination of soft and hard rocks is secondary to slide; and hard rocks such as granite and carbonate rocks are not easy to slide; only a few old landslides were re activated by Wenchuan Earthquake. |
| |
| Keywords: | Landslides Wenchuan Earthquake Earthquake parameters Geological and geomorphological factors Relations |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《工程地质学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《工程地质学报(英文版)》下载免费的PDF全文 |
