Study on the formation mechanism of the landslide in the old cellar in Wanzhou

The natural geological conditions in the Three Gorges Reservoir Area are complex, which are the frequent and severe geological hazards in China. With the operation of reservoirs, the occurrence of geological hazards is aggravated. This not only causes great loss of life and property, but also destroys the geological environment and hinders the sustainable development of regional economy. Since the formation of Laojiaolin landslide in Wanzhou District, there have been many landslides and deformations, and the landslide body is densely populated and houses are dense. Deformation bodies often cause cracks and dislocations of main road facilities and residential buildings, triggered by extreme rainstorms, floods and other factors, which can cause sustained and rapid deformations, which will directly promote the inclination of residential buildings. The collapse has resulted in major disasters and accidents, which have posed a serious threat to the lives and property safety of the people in the region. It is of great practical significance to study the formation mechanism of landslides.