ON DYNAMIC RESPONSES OF GANHAIZI LANDSLIDE IN RESERVOIR ZONE DURING XILUODU PROJECT OPERATION

Ganhaizi landslide is a large-scale landslide nearest to Xiluodu dam site in Reservoir zone. And with the water level fluctuation a certain deformation and partial collapse occurred in this landslide body. Because of its big volume and the distance to dam site less than 14km, disastrous consequences will be result in the event of large-scale instability. In this paper based on the systematic analyses about the macro deformation signs and the deformation monitoring data during the operation period, the dynamic response rules of Ganhaizi to reservoir water level fluctuation were studied in detail, including the slope deformation trend, failure mode, potential failure range and influence degree. Some technical supports for project operation management, disaster prevention and mitigation were provided.