Rainfall-induced landslides

#Soil Slope Failure
#Erosion Failure
#Rainfall-induced landslides
Rainfall is recognized as the major cause of slope instability.
Rainfall-induced slope failures are generally caused by increased pore pressure and seepage forces during periods of intense rainfall. The effective stress in the soil will be decreased due to the increased pore pressure and thus reduce soil shear strength, eventually resulting in slope failure. During the rainfall a wetting font goes deeper into the slope, resulting in a gradual increase of water content and a decrease of the negative pore water pressure is referred to as matric suction.
The loss of suction causes a decrease in the shear strength of the soil on the potential failure surface and finally triggers the failures....