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本文用初始函数法对成层地基在轴对称表面荷载作用下的位移和应力进行分析,导出了荷载作用下成层地基位移和应力计算的一般公式.不论弹性层的数目多少,最后问题都可化为求解一个二元一次代数方程组.集中力作用下单层地基表面位移公式和文献[4]用不同方法求得的结果完全一样,从而说明了提供方法的正确性.文中的算例进一步验证了该方法的简便性和计算结果的精确程度.
In this paper, the displacement and stress of layered foundation under axisymmetric surface loading are analyzed by using the initial function method, and the general formulae for calculating the displacement and stress of layered foundations under load are derived. No matter how many the number of elastic layers, the last problem can be solved. In order to solve a binary first-order algebraic equations, the surface displacements of a single-layered soil under the action of a concentrated force are exactly the same as the results obtained in [4] using different methods, thus illustrating the correctness of the provided method. Verify the simplicity of the method and the accuracy of the calculation results.