川藏铁路雅砻江深切峡谷区滑坡早期识别研究  

Research on Early Identification of Landslide in Deeply Incised Valley of Sichuan-Tibet Railway

作　　者：白永健[1] 熊小辉[1] 铁永波[1] BAI Yongjian;XIONG Xiaohui;TIE Yongbo(Chengdu Center of China Geological Survey, Chengdu 610081, China)

机构地区：[1]中国地质调查局成都地质调查中心,四川成都610081

出　　处：《灾害学》2021年第3期109-114,共6页Journal of Catastrophology

基　　金：中国地质调查局项目(DD20190640);国家自然科学基金(41702374);支撑川藏科技攻坚战项目(20190505)。

摘　　要：川藏铁路自东向西横穿雅砻江段高山峡谷区,沿线滑坡地质灾害频发,且具有强隐蔽性、高突发性、强链状性、强破坏性等特点,严重威胁川藏铁路的建设和运营安全。为了实现对深切峡谷区重大滑坡地质灾害早发现早防范,采用孕灾环境条件分析、高精度遥感、InSAR监测技术、无人机航拍等“星-空-地”识别技术,对深切河谷滑坡进行早期识别。获取深切峡谷区滑坡包括孕灾环境、斜坡空间几何结构、斜坡灾变演化特征等指标,构建深切峡谷区滑坡早期识别方法及指标体系,并运用该识别方法对典型滑坡甲西滑坡进行识别验证。以期为深切峡谷区滑坡地质灾害早期识别和防灾减灾等工作提供参考。The Sichuan-Tibet railway,spanning the Yalong River from east to west,has frequent geohazards,which have the characteristics of strong concealment,high sudden,strong chain and strong destruction,and seriously threatened the construction and safety operation of the Railway.In order to early identification and prevention of major landslide in deeply incised valley,we carried out the Integration of“Star-Air-Ground”identification technologies,such as environmental condition analysis,high-precision remote sensing,InSAR monitoring technology and Uav aerial photography.The evaluation methodology and index system of the early identification of landslide in deeply incised valley,including environmental condition,spatial geometry of the slope and the characteristics of the disaster evolution,were put forward,and which are used to identify and verify a typical landslide.which can provide reference for the early identification and prevention of geological hazards in deeply incised valley.

关 键 词：川藏铁路 深切峡谷区 滑坡 早期识别 

分 类 号：P624[天文地球—地质矿产勘探] X43[天文地球—地质学]