圆形荷载作用下考虑粘土次固结效应的沉降计算

Settlement Calculation of Consolidation and Second Timeeffec of Clay under Uniform Distributed Load on the Circular Area

在文献[1][2]的基础上,将矩形分布的均布荷载问题改换成圆形分布的均布荷载问题,利用张量算法将文献[2]中的基本方程写成圆柱坐标形式,利用了文献[2]中完全一样的位移函数。由于在圆柱坐标中改用Hankel变换使问题同样变成可解的形式,代入边界条件进行反演变换,并对得到的解进行数值积分后,可以看出本方法在实际应用中是十分简便的,因此可供沉降计算与沉降资料整理分析时参考。

On the basis of theses [1] and [2],the uniform distribution of rectangular distribution was changed to the cylindrical one and the basic equation in the thesis [2] was written as the polar coordinates system by the tensor calculation method and the same displacement function in the thesis [2]. Due to the change of Hankel in the polar coordinates system, the polar symmetric consolidation and secondary timeeffect problem of clay also became solvable. The inversion was given with bringing the boundary condition. It is shown obviously after the numerical integration having been made for the solution achieved, the calculation is very convenient in the practice. So, it can be taken as the reference data for the settlement calculation and sorting out the settlement date observed.