摘要
考虑土颗粒与孔隙流体的压缩以及孔隙流体与土骨架之间的粘性耦合作用,采用修正的Biot模型,研究了入射平面P1波在饱和土中饱和圆柱体上的散射问题,得到了散射和折射波场势函数的幅值方程,并对背向散射形函数随无量纲频率的变化曲线以及不同无量纲频率的径向位移沿周向的分布曲线进行了数值模拟。
Considering the compression of soil grain and pore fluid and viscid coupling of pore fluid and soil skeleton, elastic wave scattering by a saturated cylinder in saturated soils was studied by adopting amended Biot model, amplitude equations of potential functions of scattered wave fields and refracted wave fields were obtained, and the variation curves of back-scattered form functions with normalized frequencies and circumferential distribution curves of radical displacements of various normalized frequencies were numerically analyzed.
出处
《科技通报》
2006年第6期802-806,812,共6页
Bulletin of Science and Technology
关键词
饱和土体
散射
背向散射形函数
径向位移
无量纲频率
saturated soil
scattering
back-scattered form functions
radical displacements
normalized frequency
