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本文提出了一种能同时考虑地基的瞬时变形、固结变形和流变的地基基础与上部结构共同作用的一种新的计算方法。在这种方法中,土的计算考虑了Biot固结理论和流变。上部结构利用子结构法进行凝聚可得边界刚度矩阵和边界力;利用位移协调条件则可以得到共同作用的控制方程。对上述方程进行Laplace变换,可以得到Laplace变换域内的控制方程;在Laplace变换域内对上述方程进行数值求解并进行相应的Laplace逆变换则可以得到时间域内任意时刻的解。
This paper presents a new calculation method that can simultaneously consider the instantaneous deformation, consolidation deformation and rheology of the foundation and the superstructure together. In this method, soil calculations take into account the Biot consolidation theory and rheology. The superstructure can be obtained by the sub-structure method to aggregate the boundary stiffness matrix and the boundary force. By using the displacement coordination condition, the governing equations can be obtained. Laplace transform of the above equation can be obtained Laplace transform domain control equation; Laplace transform domain in the numerical solution of the above equation and the corresponding Laplace inverse transform can be obtained at any time within the time domain solution.