EVALUATION OF COLLAPSE AND LANDSLIDE RISK IN THE THREE GORGES RESERVOIR(FROM CHONGQING TO WIJSHAN)

To deal with the data of CAL files, SPSS and EXCEL software were used here. Some valuable conclusions and some risk index of collapses and landslides were obtained on the bases of the stability. The risk division was made,using the average disastrous area of collapses and landslides every 10 km along the Yangtz River ( from Chongqing to Wushan),at the same time this thesis calculated the risk index of collapses and landslides along the river.