A high steep hill with two-side slopes and a high steep hill with one-side slope near National Road 213 were used as a prototype.A full process from initial deformation to sliding of the slope during ground shaking was simulated by a new discrete element method(CDEM).The results showed that there are some commonalities and differences about the dynamic responses between the slopes with two-side and one-side.The stress concentration phenomenon appears at the top of the sliding mass firstly,and then some tension failure points and some shear failure points appear there, which expands toward the toe of the sliding mass from the top of that along the structural plane.The number of tension failure points gradually increases.At last,the toe of the sliding mass breaks,and then the sliding mass shears out from the toe,which results in the landslide.There are some differences in the accelerations on the slope and in the slope,as well as the Fourier spectrums of accelerations and the responses of the accelerations on the slope,which fully verifies that there are some remarkable effects of the slope angle and the slope structural kinds on those dynamic responses.
