| The earthquake brought great disaster to human beings.When an earthquake occurs in a densely populated area,Such as the Tangshan earthquake and the Wenchuan earthquake,it tends to cause an immeasurable loss to society.Local irregular topography has great influence on the ground motion during the earthquake.Scarp is a common terrain conditions,especially in the valley on both sides of the main terraces.Topographic relief affects the propagation of seismic waves,and the damage caused by different regions is different.There is few related research on the steep ridge terrain in the case of oblique incidence of earthquake wave at present.This method uses thecombination,implemented in ANSYS software numerical simulation study when SV wave oblique incidence,steep terrain on the lower side effects,the main conclusions of this paper are:(1)The amplification coefficient increases gradually,from the bottom of the bucket to the top of the steep bank.The incident angle,slope angle and incident direction have no effect on the amplification factor.(2)Steep slopes has inhibitory effect on near the left measuring point of the ground motion amplification coefficient,while it has amplification effect on near the right measuring point of the ground motion amplification coefficient.(3)When seismic wave incident angle is constant,scarp slope angle and the steep side amplification coefficient is larger.(4)When the slope angle is constant,the amplification factor of the x component decreases with the increase of the incidence angle,and the amplification factor of the y component increases with the increase of the incidence angle.Finally,a brief summary of the content and results of the study,future research in this field is prospected. |
