任意刚性基础竖向动阻抗的简化计算

对于均质弹性半空间上的任意形状的刚性明置和埋置基础，其动刚度和阻尼系数的确定，已有很多这方面的研究。通常基础的任意形状用其外包的规则几何形状代替原有的不规则基础形状，以达到确定动刚度和阻尼系数的目的，而且这两个参数的确定仅仅是对单独刚性基础的，无法考虑相邻基础对其产生的影响。针对上述两方面不完善之处作了进一步探讨，引入相邻基础动力相互作用因子的概念，并利用地基为平面应变假定以求之。推荐的方法经验证，非常准确。

Simplified method for dynamic vertical impedances of rigid foundations with arbitrary shapes

In the past many researchers have studied dynamic stiffness and damping coefficients of surface and embedded rigid foundations with arbitrary shapes in the elastic homogenous half space. Dynamic stiffness and damping coefficients are obtained by using regularly shaped foundations instead of arbitrarily shaped ones. In addition, the two parameters above mentioned are calculated only in the case of a only single foundation. But the cases of two and more foundations are not presented because the interactions between foundations are not considered in all present papers. This paper eliminates two faults above by using the assumption of the plane strain and coefficients of dynamical interactions between foundations to soil deposits. And, the calculating method of dynamic impedances presented by the paper is verified accurately.