【摘要】 考虑了土颗粒、孔隙流体的压缩性及孔隙流体与土骨架之间的粘性耦合作用,采用修改的Biot模型分析入射P1波在饱和土体和建筑基础界面的反射与透射,得到了反射系数与透射系数的一般计算式,并对反射系数、透射系数随入射角、频率的变化规律进行了数值模拟.结果表明,入射角是影响反射和透射系数的主要因素.更多还原

【Abstract】 Considering the compression of soil grain and pore fluid and viscid coupling of pore fluid and soil skeleton,reflection and transmission of incident P1 wave at the interface of saturated soil and building was studied by adopting amended Biot model.The computation formula of reflectance and transmission coefficients was drawn out and the relationship of coefficients of reflection,transmission and incidence angle and frequency was numerically simulated.The results revealed that the incident angle is the important factor that affects the reflectance and transmission coefficients.更多还原