伊犁河谷主要交通线路两侧工程扰动灾害易发性评价  

Evaluation of Disturbance Disasters Susceptibility on Both Sides of Main Traffic Lines in Ili Valley

作　　者：魏涛 崔振东[1,2] 尚彦军 乔华[4] 贺强 赵磊磊 Wei Tao;Cui Zhendong;Shang Yanjun;Qiao Hua;He Qiang;Zhao Leilei(Key Laboratory of Shale Gas anf Geoengineering,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing,100029,China;University of Chinese academy of Sciences,Beijing,100049,China;Xinjiang Key Laboratory of Geohazard Prevention,Xinjiang Institute of Engineering,Urumqi,Xinjiang,830023,China;Geological Environment Monitoring Institute of Xinjiang Uygur Autonomous Region,Urumqi 830002,Xinjiang,China;School of mechanics and architectural engineering,China University of mining and Technology(Beijing),Beijing,100083,China)

机构地区：[1]中国科学院地质与地球物理研究所中国科学院页岩气与地质工程重点实验室,北京100029 [2]中国科学院大学地球与行星科学学院,北京100049 [3]新疆工程学院新疆地质灾害防治重点实验室,新疆乌鲁木齐830023 [4]新疆维吾尔自治区地质环境监测院,新疆乌鲁木齐830002 [5]中国矿业大学(北京)力学与建筑工程学院,北京100083

出　　处：《新疆地质》2022年第4期554-560,共7页Xinjiang Geology

基　　金：第二次青藏高原综合科学考察研究(2019QZKK0904)资助。

摘　　要：伊犁河谷是新疆地质灾害易发区和重灾区,进行相应的地质灾害易发性评价,可为防灾减灾提供依据。该区交通线路由于跨度大,沿线工程地质条件复杂,极易发生扰动灾害。遥感解译显示,伊犁河谷主要交通沿线分布有179处工程扰动灾害。基于ARCGIS软件,利用层次分析法,选取高程、坡度、坡向、地表起伏度、工程地质岩组、PGA、距断层距离、距道路距离、距河流距离这9个评价因子对伊犁河谷主要交通线路两侧5 km范围内工程扰动灾害易发性进行评价。权重值显示坡度对工程扰动灾害影响最大,易发性分区结果与实际灾害分布相符合。统计显示,在占总面积15%的高与极高易发区内分布有67%的灾害,表明分区结果较合理。The Ili River Valley is a prone and severe area for geological disasters in Xinjiang.Therefore,it is of great significance to evaluate the susceptibility of geological disasters to provide a basis for disaster prevention and mitigation.Due to the large span and complex engineeing geological conditions along the traffic lines,engineering-disturbance disasters are prone to occur.Remote sensing interpretation shows that 179 engineering-disturbance disasters are distributed along the main traffic lines in li Valley.Therefore,based on ARCGIS platform and using analytie hierarchy process(AHP),this paper selected nine evaluation factors,including elevation,slope,aspect,surface relief,engineering geological rock group,PGA,distance from fault,distance from road and distance from river,to evaluate the engineering-disturbance disaster susceptibility on both sides of the main traffic lines in lli Valley.The weight value shows that slope has the greatest influence on engineering-distubance disaster.The results of the susceptibility zoning are consistent with the actual disaster distibution.And statistics shows that 67% of the disasters are distributed in the area of high and extremely high susceptibility areas accounting for 15%of the total area,indicating that the zoning results are reasonable.

关 键 词：伊犁河谷 工程扰动灾害 交通线路 易发性 层次分析法 

分 类 号：P694[天文地球—地质学]