The remote sensing image interpretation and the research of mechanism for qianjiangping landslide in the three gorges reservoir region

Based on the high resolution remote sensing images of Qianjiangping landslide, applying the technique of digital landslide and man-machine interactive interpretation, by way of analyzing geomorphologic features shown the Qianjiangping slope is an along-bedding paleo-landslide, "7.13" landslide is a large-scale along-bedding reactive landslide. The displaced volume is 1.5times10⁷m³. Synthetically analyzing the process of slide and the characteristic of deposit, it is concluded that the middle and front part of Qianjiangping landslide is push-type sliding and the back part is drag sliding, the main triggering factors was the first stage storage the Three Gorges, the continuous rainfall make some effect.