The geological hazards occur with high frequency in Three Gorges reservoir area.The landslide disasters have caused serious loss to the local economic development,the life and property.How to predict the landslides is one of the key problems for preventing hazards and reducing economical loss and casualties.The rainfall is the dominant exterior factor triggering the landslides.Through the statistics and correlation analysis for the observation data of rainfall and deformation of section piles from the Zigui...