关键词: 地表位移, 库水升降, 降雨, 三峡库区, 滑坡

Abstract: This paper presents a case history of ground movement monitoring analysis for Kaziwan landslide zone. Based on the large scale geological site reconnaissance, investigations and monitoring data analysis, it is concluded that ground movements at the potential landslide zone are strongly related to the reservoir pool water fluctuations and precipitations. Potential influence factors, such as, structural geology, ground movement of the sliding zone and monitoring data are evaluated. The following conclusions can be drawn: 1)At the beginning phase of reservoir pooling, the raise of water table had a significant impact on the stability of the slopes at Kaziwan. 2)under fluctuation of polling water table, the ground movement demonstrated a staged shape: no significant movement was monitored when the pooling water raise but large movements were observed when lowering the pooling water. The strong precipitation would also accelerate the rate of deformation. 3)under the cyclic poling water fluctuation, the rate of deformation of the sliding body gradually reduced.

Key words: Surface Movement, Reservoir Pooling Water Fluctuation, Precipitations, Three Gorges Reservoir Area, Landslide