[1]崔鹏,陈晓清,张建强,等.“4·20”芦山7.0级地震次生山地灾害活动特征与趋势[J].山地学报,2013,(03):257.
　CUI Peng,CHEN Xiaoqing,ZHANG Jianqiang,et al.Activities and Tendency of Mountain Hazards Induced by the Ms7.0 Lushan Earthquake，April 20，2013[J].Mountain Research,2013,(03):257.
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“4·20”芦山7.0级地震次生山地灾害活动特征与趋势()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2013年03期
页码:
257
栏目:
专稿
出版日期:
2013-01-01

文章信息/Info

Title:
Activities and Tendency of Mountain Hazards Induced by the Ms7.0 Lushan Earthquake，April 20，2013
作者:
崔鹏;陈晓清;张建强;杨宗佶;游勇;范建容;苏凤环;孔应德;朱兴华;
1.中国科学院山地灾害与地表过程重点实验室，中国科学院成都山地灾害与环境研究所，四川 成都 610041;
2.中国科学院大学，北京 100049
Author(s):
CUI Peng; CHEN Xiaoqing; ZHANG Jianqiang; YANG Zongji; YOU Yong; FAN Jianrong; SU Fenghuan; KONG Yingde; ZHU Xinghua
1. Key Laboratory of Mountain Hazards and Surface Process，Chinese Academy of Sciences/ Institute of Mountain Hazards and Environment， Chinese Academy of Sciences，Sichuan Chengdu，610041，China;
2. University of Chinese Academy of Sciences，Beijing 100049，China
关键词:
芦山地震; 次生山地灾害; 崩塌; 滑坡; 落石; 泥石流; 堰塞湖; 减灾
Keywords:
Lushan earthquake;  earthquakeinduced hazards;  collapses;  landslides;  rockfall;  debris flow;  dammed lake;  hazard mitigation
分类号:
P642.2,X14
文献标志码:
A
摘要:
2013-04-20芦山县发生7.0级地震,震源深度13 km。截至4月29日地震共造成196人遇难,21人失踪,13 484人受伤,200余万人受灾。地震发生后,我们立即开展了地震次生山地灾害的遥感解译、实地调查及危险性评估工作。作者定义了地震次生山地灾害,分析了次生山地灾害的活动特征、形成机制与模式以及发展趋势,并与汶川地震次生山地灾害进行了对比。初步查明芦山地震诱发了1 460余处崩塌和滑坡,大量落石和4处堰塞湖。次生山地灾害具有规模小、群发性和高位破坏的特征。崩塌和落石成群发育于坚硬岩石形成的陡坡上,主要发育区段有:芦山县的宝盛乡金鸡峡、双石镇大岩峡以及省道S210线K317路段和灵关...
Abstract:
An Ms7.0 earthquake，focal depth of 13 km，hit Lushan，Ya’an，Sichuan，on April 20，2013. We have taken a survey of the resulted and potential mountain hazards immediately after the quake. We identified the earthquakeinduced hazards in mountains，analyzed the activity，formation mechanism，and developing tendency，and compared them with the situations in Wenchuan earthquake. Field survey found 1 460 landslides and collapses and 4 dammed lakes，which are small in scale and concentrated in groups. Collapses and rockfalls occurred in rocky cliffs，mainly in gorges of Jinji in Baosheng country and Dayan in Shuangshi town，and in K317 section of S210 provincial highway and Xiaoguanzi section north to the Lingguan town，threatening rescue passage along the river. Landslides are scarce and in moderate scale，mainly occurred in sandstone，shale and colluviums. Only one large landslide was found，which turned into flow. Dammed lakes were formed mainly by collapses and landslides，all in small size and low danger. Major control factors of the hazards are structure，lithology，surface and landform. The collapses are consequent，insequent，and controlled by structure surface. Compared with the Wenchuan earthquake，the landslide number is only 5.53% and the impact area is as small as 0.57%. Superposition effect of quake has strongly reduced the stability of slope. Collapses，landslides，and debris flows are expected to be more frequent after the quake; but the active period will be relatively short. But potential hazards are hard to figure out.

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备注/Memo

备注/Memo:
收稿日期(Received date)：2013-05-13。
基金项目（Foundation item）：中国科学院重点部署项目:泥石流动力过程及其调控模拟（KZZD-EW-05-01）和中国科学院山地灾害与环境研究所减灾专项支持项目。[Key project of Chinese Academy of Science(Grant No. KZZD-EW-05-01) and special support project by Institute of Mountain Hazards and Environment, CAS.]
作者简介（Biography）：崔鹏(1957-),博士,研究员,研究方向:山地灾害与水土保持。 [ Peng Cui (1957-) : Ph.D, Professor, Specialized in mountain hazards and soil erosion.] E-mail: pengcui@imde.ac. cn
更新日期/Last Update: 1900-01-01