中国三峡库区地理环境复杂、气候湿润、降雨充沛、人类工程活动频繁，使得库区地质灾害频发。岸坡失稳会对三峡库区基础设施及人民生命财产安全造成隐患，因此对于三峡库区滑坡监测及机理研究显得尤为重要。以三峡库区的金鸡岭滑坡作为研究对象，基于时序合成孔径雷达干涉测量技术（interferometric synthetic aperture radar, InSAR）技术获取金鸡岭滑坡的形变信息，利用Geo-studio软件分析不同降雨工况对金鸡岭滑坡的影响。数值模拟结果表明：在相同降雨历时下，雨强越大，滑坡的稳定系数越低；在等降雨量情况下，降雨历时越长，对滑坡渗流场的影响越持久，且在降雨结束时滑坡的稳定系数越低。在滑坡形变分析中，在20 mm/d工况下降雨开始后的3 h内，滑坡的形变量最大。数值模拟与时序InSAR形变监测的对比结果显示，模拟出的形变场与时序InSAR监测到的形变位置具有较好的吻合性。

The geographical environment of the Three Gorges Reservoir area in China is characterized by complexity, a humid climate, abundant rainfall, and frequent human engineering activities, resulting in frequent geological disasters. Slope instability is identified as a potential threat to infrastructure and the safety of lives and property in the reservoir area, highlighting the importance of landslide monitoring and mechanism research. The Jinjiling landslide in the Three Gorges Reservoir area was selected as the research focus. Time-series interferometric synthetic aperture radar(InSAR) technology was employed to obtain deformation information of the landslide, and the effects of varying rainfall conditions on the landslide were analyzed using Geo-studio software. The numerical simulation results show that, for the same amount of rainfall, prolonged rainfall duration exerts a more sustained impact on the seepage field of the landslide and reduces the stability coefficient of the landslide at the end of the rainfall event. In the deformation analysis, maximum deformation is observed within 3 hours of the rainfall onset under the condition of 20 mm/d rainfall intensity. The comparison between numerical simulation results and time-series InSAR deformation monitoring indicate strong consistency between the simulated deformation field and the deformation location identified by time-series InSAR monitoring.