软土地基中预应力管桩荷载-沉降曲线计算

Journal of Transport Science and Engineering(2021)

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Abstract
为研究预应力管桩单桩极限承载力,采用指数函数模型计算和分析预应力管桩桩周摩阻力-沉降关系、桩端阻力-沉降关系.以安慈高速预应力管桩单桩极限承载力为例,进行指数函数模型计算和静载试验,并对计算结果和试验结果进行对比分析.研究结果表明:指数函数模型的计算结果与静载试验的结果较为相近,该模型可以有效预测软土中预应力管桩单桩极限承载力,可为类似工程估算桩土沉降提供指导.
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