| 摘要: |
| 采用弹塑性荷载传递函数，以解析法推导了与桩顶荷载-桩顶沉降整个关系曲线上相对应的单桩轴向刚度计算式，分析了桩长、桩径、桩的刚度系数、桩端土弹性模量与桩周土弹性模量之比和桩周土泊松比等因素对超长单桩轴向刚度的影响后表明，只有桩长、桩径及桩的刚度系数对超长单桩轴向刚度的影响较大。 |
| 关键词: 超长单桩 轴向刚度 荷载传递函数 解析法 影响因素 |
| DOI： |
| 分类号:TU473.1 |
| 基金项目: |
|
| Calculation and influence analysis for axial rigidity of a super-long single pile |
|
ZENG You-jin,ZHANG Wei-min,WANG Nian-xiang,XU Guang-ming
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| Abstract: |
| The corresponding calculation formula of the axial rigidity of a single pile is deduced according to the whole curve of the top load-settlement with a linearly elastic-plastic load transfer function. Influences of the pile's length, pile's diameter, coefficient of rigidity, elastic modulus ratio of the bottom soil and surrounding soil and Poisson's ratio of surrounding soil on the axial rigidity of a super-long pile are analyzed. It can be seen that the pile's length, diameter and coefficient of rigidity have important effects on the axial rigidity. |
| Key words: load transfer function,analytic method,influence factors,axial rigidity,single super-long pile |
