新疆伊犁地区滑坡隐患InSAR识别与发育特征研究  

Research on InSAR Identification and Development Characteristics of Landslide Hidden Hazards in Yili Area, Xinjiang

作　　者：张娅娣 师芸[1,2] 王佳运 颉昕宇[1] 石龙龙 Zhang Yadi;Shi Yun;Wang Jiayun;Xie Xinyu;Shi Longlong(Xi'an University of Science and Technology,School of Surveying and Mapping Science and Technology,Xi'an 710054,China;Key Laboratory of Coal Resources Exploration and Comprehensive Utilization,MNR,Xi'an 710021,China;Xi'an Geological Survey Center of China Geological Survey,Xi'an 710000,China)

机构地区：[1]西安科技大学测绘科学与技术学院,陕西西安710054 [2]自然资源部煤炭资源勘查与综合利用重点实验室,陕西西安710021 [3]中国地质调查局西安地质调查中心,陕西西安710054

出　　处：《遥感技术与应用》2023年第2期496-507,共12页Remote Sensing Technology and Application

基　　金：国家自然科学基金项目(41674013、41874012);南疆兵团师市规划建设区资源环境综合地质调查(DD20201119)。

摘　　要：针对伊犁地区近年来滑坡灾害频发严重威胁当地居民生命财产安全的现状。研究利用SBAS-InSAR技术,聚焦伊犁地区典型地质灾害区喀拉亚尕奇,联合多源SAR数据,结合光学遥感和野外地质调查,共识别61处潜在滑坡。引入全球降水计划GPM降水数据对重点滑坡隐患G3、H56时空演化特征进行分析,发现二者形变速率与降水量有较好的相关性,在冻融期滑坡变形达到峰值,降雨期次之。结合地质及地貌特征分析表明,冻融作用、降雨、地质条件及人类工程活动是诱发区内滑坡灾害的主要因子。区内滑坡主要分布在坡度10°~30°,坡向以阳坡(135°~315°)为主,面积发育小于0.15 km^(2)的姜黄色砾岩等互层状较软弱砂岩、砾岩岩组。实验结果表明InSAR技术可有效识别监测伊犁地区滑坡隐患,可为当地灾害防治提供技术参考和科学依据。In view of the current situation of the frequent landslide disasters in Yili area in recent years,which seriously threaten the safety of local residents'lives and property.The study uses SBAS-InSAR technology to focus on the typical geological disaster area of Kalayagaqi in Yili area,combined with multi-source SAR data,combined with optical remote sensing and field geological survey,a total of 61 potential landslides were identified.The GPM precipitation data of the Global Precipitation Program was introduced to analyze the temporal and spatial evolution characteristics of the key landslide hazards G3 and H56.It was found that the deformation rate of the two had a good correlation with the precipitation,and the landslide deformation reached its peak during the freeze-thaw period,followed by the rainfall period.Combined with the analysis of geological and geomorphological characteristics,it is shown that freeze-thaw,rainfall,geological conditions and human engineering activities are the main factors that induce landslide disasters in the area.The landslides in the area are mainly distributed in the slope of 10°~30°,the slope direction is mainly sunny slope(135°~315°),and the area is less than 0.15 km^(2) of ginger yellow conglomerate and other interbedded weaker sandstone and conglomerate groups.The experimental results show that InSAR technology can effectively identify and monitor landslide hazards in Yili area,and can provide technical reference and scientific basis for local disaster prevention and control.

关 键 词：SBAS-InSAR 伊犁地区 喀拉亚尕奇 滑坡识别 冻融作用 发育特征 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]