The result of numerical calculation shows that the capacity of bearing the load is enhanced extremely by changing the geometrical shape of the shell and its material distribution.

数值计算结果表明，通过改变圆柱状壳体的几何形状及其材料分布，可使其承受外压载荷的能力有很大的提高。

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The design and calculation method of the screwed pile are discussed. The result for load bearing capacity of the pile is verified by both experiment and projects.

初步探讨了确定螺纹桩承载力的设计计算方法，并将螺纹桩的静载试验结果与设计计算结果进行了对比。

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Based on the demand of present code, using the calculation of bearing capacity of pile shaft and subgrade bearing capacity for pile, vertical experimental load of embedded rock pile is ensured.

采用现行规范规定的对桩身承载力和地基土对桩的支承阻力两项的计算，确定嵌岩桩竖向抗压静载试验的试验荷载。

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