【摘要】 澜沧江沿岸发育的滑坡一般具有堆积层厚度深、体积规模大且形成机制复杂的特点，一旦发生滑坡，可能导致澜沧江堵塞，危害极为严重。利用地表位移数据（InSAR/GNSS）、数值模拟等分析滑坡灾害变形特征及动态演化规律，确定综合评价方法，对滑坡防治具有重要意义。以西藏芒康县重金组滑坡为例，基于InSAR-GNSS-FLAC^3D协同技术，研究重金组滑坡的变形特征和失稳演化过程。研究结果表明：重金组滑坡变形主要表现为蠕动滑移-加速滑移-蠕动滑移循环的规律，滑坡强变形区位于坡体前缘；在暴雨等极端工况条件下，该滑坡将形成贯通滑面发生滑动。研究结果可为类似滑坡预防和治理提供借鉴。更多还原

【Abstract】 Landslides developed along the Lancang River are generally characterized by deep accumulation layers, large volume scale, and complex formation mechanisms. Once a landslide occurs, it may block the Lancang River, causing extremely serious hazards. Using surface displacement data(InSAR/GNSS), numerical simulation, etc. to analyze the deformation characteristics of landslide disasters are of great significance to landslide prevention. Taking the Zhongjinzu Landslide in Markam County of Xizang Autonomous Region as an example, the deformation characteristics and instability evolution process of the landslide based on the collaborative technology of “InSAR-GNSS-FLAC3D” was studied. The results show that the deformation of the Zhongjinzu Landslide mainly follows a cycle of “creep sliding-accelerated sliding-creep sliding”, with the strong deformation at the front edge of the slope body. Under extreme working conditions such as heavy rainfall, the landslide will form a throughgoing surface of rupture and trigger disaster. The research results can provide references for the prevention and control of similar landslides.更多还原