【摘要】 分析了地基隔震减震的机理,包括层状土体界面对地震波的反射、土体非均匀性引起的散射、地基土层的粘滞耗能、塑性变形耗能、土颗粒的摩擦耗能、液化土层对地震波的滤波和吸收,并归纳了砂垫层等可以作为地基隔震减震层的材料。更多还原

【Abstract】 This paper analyzes the foundation isolation mechanism,including the seismic reflections from the layered soil interface,the scattering resulted from heterogeneities of foundation soil,dissipation energy by viscous of foundation soil,plastic deformation and friction of soil particles,and absorptions of seismic waves from liquefied soil layer.In the end,the paper summarizes that sand cushion and so on can be used as isolation damping material.更多还原