某集装箱码头桩基承载力理论计算与静载试验对比分析
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Calculation of pile bearing capacity and static loading test of a container terminal
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    摘要:

    依托某集装箱码头工程的后轨道梁桩基,针对开口钢管桩和半闭口钢管桩两种形式,详细对比国内外常用桩基承载力经验公式计算结果的差异,并与现场静载试验结果进行对比。结果显示:对于砂性土与黏性土成层交替分布的地基,国内外桩基承载力经验公式在侧摩阻力、端阻力、桩端闭塞效应、总承载力计算结果上均存在一定的差异,与静载试验结果相比也有所偏差。按国内规范计算的总承载力与静载试桩结果基本接近,国外经验公式的偏差较大。半闭口桩尖可显著提高砂质地基的桩端承载力,桩端闭塞系数可达0.8以上。相关结论可供类似工程借鉴。

    Abstract:

    Relying on one rear crane pile static load test of a container terminal project,for open-end and semi-open end steel tubular piles,the analysis on the results of the common calculation methods on the pile bearing resistance used at home and abroad,as well as the comparisons between the calculation results and the pile test results have been carried out.It is found that there are certain differences on the calculated results on the friction,end and total bearing resistance with different common calculation methods as well as the results of pile load test for the soil conditions with sand and clay distributed alternately.The total resistance calculated by the method stated in the domestic code is close to the results of pile load test while the methods stated in foreign codes have relatively large derivation with the load test.The semi-open pile shoes can significantly improve the pile end bearing resistance and the pile plug coefficient can reach more than 0.8.The conclusions may be reference for similar projects.

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陈 洁,余神光,张晓晨,等.某集装箱码头桩基承载力理论计算与静载试验对比分析[J].水运工程,2023(6):85-91.

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  • 在线发布日期: 2023-06-13
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