ProcessPseudo-dynamic Analysis For Seismic Active Earth Pressure Behind Retaining Wall

Remaining wall is a common remaining structure to prevent collapse of soil, which is widely used in soil slope retaining in practical engineering such as construction engineering,hydraulic engineering and railway highway engineering. Therefore,research on seismic design of the retaining wall is very important.Currently,it is commonly used to be pseudo-static method for the calculation of earth pressure behind retaining wall,But there is a big difference between the pseudo-static approach assumes and the real situation of earthquake. In order to compensate defect for pseudo-static method, pseudo-static approach was suggested to analysis for seismic active earth pressure behind retaining wall. This paper is on the basis of these scholars studies,and carried out in the following areas:(1)By shear beam theroy,dynamic equations of motion was bulit for a slope of horizontal earthquake excitation,to solve the formula of horizontal displacement. Make ues of this horizontal displacement obtain a earthquake acceleration of any time and any depth.(2)Establishing a calculation model of seismic active earth pressure to retaining wall,ues of horizontal earthquake acceleration obtain a horizontal earthquake inertia force,combination with static balance equation, research in seismic active earth pressure of rigidity retaining wall by pseudo-static approach,get a computational formula of total seismic active earth pressure.(3)Suggesting a calculation model of seismic passive earth pressure to translation retaining wall,ues of horizontal earthquake acceleration obtain a horizontal earthquake inertia force,combination with static balance equation, research seismic passiv earth pressure of rigidity retaining wall by pseudo-static approach,get a computational formula of total seismic passive earth pressure.(4)Using MATLAB numerical analysis software,to simplify the earth pressure computational formula,analysis to the filled soil Angle of internal friction,filling surface slope toe,the retaining wall and filling interface friction Angle and other correlation coefficient for the influence of seismic active,eismic passiv earth pressure.