Residual strength of smectite-dominated soils from the Kamenose landslide in Japan

The residual strength of smectite-dominated soils from the main slip surfaces of the Kamenose landslide, Japan, was measured by ring shear test, and the relations of the residual strength to the clay fraction content and clay particle orientation were studied. The residual angles of shearing resistance, , were estimated assuming that the residual cohesion is zero. The magnitude of the residual angle of shearing resistance was dependent on the