阿塔巴德滑坡形成条件与诱发机制分析  

Analyses on formation conditions and triggering mechanism of Atabad landslide

作　　者：陈文涛[1,2,3] 杨志全 朱颖彦 张智伟 张杰[5] 罗志刚 CHEN Wentao;YANG Zhiquan;ZHU Yingyan;ZHANG Zhiwei;ZHANG Jie;LUO Zhigang(School of Safety Science and Emergency Management,Wuhan University of Technology,WuhanHubei 430070,China;Faculty of Public Safety and Emergency Management,Kunming University ofScience and Technology,Kunming Yunnan 650093,China;China Occupational Safety and HealthAssociation,Beijing 100011,China;Institute of Mountain Hazards and Environment,Chinese Academyof Sciences,Chengdu Sichuan 610041,China;Yunnan Institute of Geological Environment Monitoring,Kunming Yunnan 650216,China;China Road and Bridge Engineering Co.,L.d.,Beijing 100011,China)

机构地区：[1]武汉理工大学安全科学与应急管理学院,湖北武汉430070 [2]昆明理工大学公共安全与应急管理学院,云南昆明650093 [3]中国职业安全健康协会,北京100011 [4]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 [5]云南省地质环境监测院,云南昆明650216 [6]中国路桥工程有限责任公司,北京100011

出　　处：《中国安全科学学报》2020年第11期148-155,共8页China Safety Science Journal

基　　金：国家自然科学基金资助(41861134008);云南省重点研发计划(202003AC10002);云南省基础研究计划面上项目(202001AT070043);云南省教育厅科学研究基金资助(2018JS029)。

摘　　要：为探究巨型冰楔滑坡起动理论,以阿塔巴德滑坡为研究对象,分析巨型冰楔滑坡的形成条件与诱发机制。实地考察阿塔巴德村所在区域的地形地貌、气候、工程地质、水文地质及地震与新构造运动等环境条件;通过理论分析得出阿塔巴德滑坡诱发机制。结果表明:阿塔巴德滑坡的形成原因为高寒高海拔地区特殊的地形地貌条件、气候条件、工程地质条件、水文地质条件及地震与新构造运动;2010年1月4日发生的阿塔巴德滑坡是通过地下水裂纹与冰楔冻胀反复作用诱发而形成,此后发生的多次次生滑坡则由冻结与融化交替形式的冻融作用发育。In order to study strarting theory of huge ice-wedge landslide,its formation conditions and triggering mechanism were analyzed with Atabad landslide as research object.Field investigation was conducted on classic geomorphy,climate,engineering geology,hydrogeology,seism and neotectonic movement in Atabad village,and triggering mechanism was obtained through theoretical analyses.The results show that landslides in Atabad are caused by special geological factors of alpine high altitude area,including geomorphy,climate,engineering geology,hydrogeology,seism and neotectonic movement.The landslide on January 4,2010 was induced by groundwater crack action and repeated frost heaving of ice wedge,while several secondary landslides which occurred after that were mainly developed by freeze-thaw actions.

关 键 词：阿塔巴德滑坡 形成条件 诱发机制 中巴喀喇昆仑公路 地下水裂纹作用 冻融作用 

分 类 号：X915.5[环境科学与工程—安全科学]