摘要
饱和土体的隧道在竖向荷载作用下的隧道底面振动位移反应关系着饱和砂土的震陷和液化等。本文利用前人研究的基础上,通过矩阵转换、Manolis(1983a)积分方法、Bessel以及Hankel函数的性质,得到了二维频域Green函数,当锐化成单项介质时与Doyle(1966)以及Cruse和Rizzo(1968)的基本解一致;接着前人得到的三维Lamb积分方程,进而利用Manolis方法得出二维Lamb积分方程。以饱和土中圆形隧道为例,将得到的Green函数代入二维Lamb方程,得到机动车在竖向力振动引起的圆形隧道振动位移图象,文中的计算结果,对于以后研究饱和多孔介质动力学流相问题提供基础。
引文
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