| 摘要: |
| 提出了用指数函数作为荷载传递函数分析越长单桩的荷载传递。考虑了桩侧摩阻力引起的桩端土沉降作用，对指数函数进行了修正。用优化方法对单桩静载试验结果进行反演分析，优化出桩周各土层和桩端土荷载传递函数的岩土参数。3根静载试验超长单桩的计算结果与试验结果较符合，说明修正后的荷载传递函数可用于分析越长单桩的荷载传递。 |
| 关键词: 荷载传递函数 指数函数 反演分析 超长单桩 |
| DOI： |
| 分类号:TU473.12 |
| 基金项目: |
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| Analysis of load transfer of a super-long single pile |
|
ZENG You jin,ZHANG Wei min
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| Abstract: |
| An exponential function is proposed as a load transfer function to analyze the load transfer mechanism of a super long single pile, considering pile's bottom settlement caused by friction around the pile. The exponential function is revised. According to the contrary analysis of results of static loading tests of a single pile with optimization, geotechnical parameters of the load transfer function of layered soil around the pile and under the pile bottom are obtained. A good agreement between calculation results and testing results of 3 super long single piles is found,showing that the revised exponential function can be used to analyze the load transfer of a super long single pile. |
| Key words: load transfer function,exponential function,optimization,contrary analysis,super long single pile |
