预测抗浮桩抗拔承载力数学模型研究

发布时间：2018-03-18 01:33

本文选题：抗浮桩　切入点：单桩极限抗拔承载力　出处：《施工技术》2016年S2期 　论文类型：期刊论文

【摘要】：抗浮桩由于稳定性高、施工简易、适用范围广而被广泛运用于解决地下工程抗浮问题,但现阶段暂无有关抗浮桩单桩极限抗拔承载力的理论计算公式。基于广州某超算中心地下室工程抗浮桩的现场静载试验,运用Origin数据分析软件,对预测抗浮桩的极限抗拔承载力的数学函数模型进行讨论。拟合结果表明:数学函数模型外推法能较为准确地对抗浮桩单桩极限抗拔承载力进行预测,回归拟合的常用3种数学函数模型对单桩Q-s曲线拟合精度均较高,指数函数模型在预测极限抗拔承载力更接近实际值,能够为实际工程设计提供依据,为类似工程提供可靠参考。
[Abstract]:Because of its high stability, simple construction and wide application, anti-floating pile is widely used to solve the problem of anti-floating in underground engineering. However, at present, there is no theoretical formula for calculating the ultimate uplift bearing capacity of a single pile. Based on the site static load test of the anti-floating pile in a basement project of an overcalculation center in Guangzhou, the Origin data analysis software is used. The mathematical function model for predicting ultimate uplift bearing capacity of floating pile is discussed. The fitting results show that the extrapolation of mathematical function model can accurately predict the ultimate uplift bearing capacity of single pile. The three commonly used mathematical function models of regression fitting have higher fitting accuracy for Q-s curve of single pile, and the exponential function model is closer to the actual value in predicting ultimate uplift bearing capacity, which can provide the basis for practical engineering design. It provides reliable reference for similar projects.
【作者单位】：广州市盛通建设工程质量检测有限公司;暨南大学信息技术研究所;
【分类号】：TU473.1

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