Experimental study of dry-wet circulation of Qianjiangping Landslide’s unsaturated soil

For the instability landslide in the Three Gorges Reservoir region, the change of the reservoir water level, atmospheric precipitation and other factors arising from the impact of human activities will be the chief reasons. Landslide sliding zone which repeatedly immersed in water under its intensity is a large number of ancient landslide or produce new landslide in the region. Based on the slide belt Qianjiangping landslide in wet-dry cycle test (DWC) and the consolidated-undrained triaxial test (CU) of unsaturated soil under natural conditions results, studied wet-dry cycle Qianjiangping landslide conditions slippery soil strength and deformation characteristics, reveals the instability mechanism of Qianjiangping landslide.