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本文提出了桩的任一截面处单位摩擦力与位移以及桩底压力与位移间关系的两个模式。模式的参数皆可利用旁压似地基勘探的资料来求算。在这两个模式的基础上,文中又提出了轴向受力桩各截面状态矢量的矩阵表达的计算公式。最后并对三根钻孔试桩的桩顶轴向位移的理论值与实测值进行了比较。
In this paper, two models of the relationship between unit friction and displacement at each section of pile and the relationship between pile bottom pressure and displacement are proposed. The parameters of the model can be calculated by using the data of the side pressure as foundation exploration. On the basis of these two models, the formula of matrix expression of each section state vector of axially stressed pile is proposed. Finally, the theoretical and measured values of the axial displacement of the pile top of three drilled test piles are compared.