“9·07”彝良地震诱发次生山地灾害调查及减灾建议  

Mountain Hazards Induced by the Earthquake of Sep 07,2012 in Yiliang and the Suggestions of Disaster Reduction

作　　者：王东坡[1,2,3] 何思明[1,2] 葛胜锦[4,5] 潘长平[4,5] 翟敏刚[4,5] 

机构地区：[1]中国科学院山地灾害与地表过程重点实验室,四川成都610041 [2]中国科学院水利部成都山地灾害与环境研究所,四川成都610041 [3]中国科学院大学,北京100049 [4]中交第一公路勘察设计研究院有限公司,陕西西安710075 [5]陕西省公路交通防灾减灾重点实验室,陕西西安710075

出　　处：《山地学报》2013年第1期101-107,共7页Mountain Research

基　　金：科技部支撑项目(2011BAK12B03);国家自然科学基金(41272346)~~

摘　　要：2012年"9·07"彝良地震诱发大量的次生山地灾害,包括崩塌、滚石、滑坡、泥石流等。其中,崩塌、滚石不仅造成了大量人员伤亡和房屋损毁,也阻塞了救援道路,严重延缓了救援进度。且由于地震及余震多次往复作用,造成大部分山体稳定性降低,在未来几年甚至几十年,山地灾害将进入频发期,灾害链[滚石、崩塌、滑坡-泥石流-堵江(堰塞湖)-溃坝(洪水、更大规模泥石流)]表现将尤为突出。通过地震后对彝良县城洛泽河镇地震重灾区展开次生山地灾害调查,提出震区次生山地灾害的减灾建议。Serious secondary mountainous disasters, including collapses, rockfalls, landslides and debris flows, were induced by the earthquake stricken Yiliang County of Yunnan Province, China on September 7th,2012. Col- lapses and rockfalls, as major secondary mountainous disasters, led to not only sever casualties and building dam- age, but also delayed rescue actions due to consequential road blocking. Decreases in stabilities of most mountain bodies in seismic regions, caused by repeated influences of the earthquake and its aftershocks, may led to a period of frequent secondary disasters in the future years or even decades, featured especially by the disaster chain （ rock- fails, collapses, landslides--debris flows--barrier lakes--dam brake （flood, debris flows of even larger scale） ）. In the present study, after a investigation along Yiliang county and Luozehe town, typical secondary mountainous disasters which may be induced by this earthquake were analyzed and hazard mitigation suggestion were proposed aiming at these secondary disasters.

关 键 词：“9·07”彝良地震 次生灾害 崩塌 滚石 滑坡 泥石流 

分 类 号：P642[天文地球—工程地质学] P694[天文地球—地质矿产勘探]