Abstract:

Geological disaster occurs frequently in the three gorges reservoir area, but there is little research on causal relationships between landslide and structural characteristics. And the relative relation of a number of individual landslides in the same local structure has been studied rarely by scholars. Based on the application of faultrelated folds theory, combined with the engineering geology researches, regarded Zuojituo anticline and Badong fault as the focal point of study, in this article the relation between local structure and landslide type is studied. It shows that the cause of large-scale landslide is related with local structure type and local structure parts where are subjected to cut by rivers, which control causal relationship between the evolution rule of individual landslide and the whole bank slope by a deeper level, but not only  reflected the control of a single landslide. In working area landslide formation is related to Zuojituo anticline style and Badong reverse structure, and also related to the river cutting local structure part. Therefor the landslides change fundamentally in local part, and have a serious directivity during evolution of bank slope damaging in space.

Key words: Three Gorges Reservoir Area, local structure, landslide, disasters