红层滑坡时序InSAR监测与变形特征研究——以川南海亭村滑坡为例

Study on Time-series InSAR Monitoring and Deformation Characteristics of Red-bed Landslide:A Case Study of Haiting Village Landslide in South Sichuan

利用时序InSAR技术,基于Sentinel-1升降轨影像,获取了海亭村红层滑坡2017—2020年的升降轨形变场。海亭村滑坡整体处于较活跃状态,坡体的稳定性受到了严重影响,对当地居民的生命财产安全造成了巨大威胁,其变形与地质构造背景、河流侵蚀、降雨和人类活动有关。成果可为当地滑坡灾害预警工作提供参考。

In this paper,the deformation field of the Haiting village landslide from 2017 to 2020 was obtained based on Sentinel-1 images using the time-series InSAR technology.The Haiting village landslide is in a relatively active state,and the stability has been severely affected,posing a huge threat to the safety of residents'lives and properties.Its deformation is related to the geological structure background,river erosion,rainfall and human activities.The results can provide reference for local landslide disaster early warning work.