Study of p - y curve method for computing laterally loaded piles under horizontally distributed loads

ZHANG Jian-wei; LIU Han-long; DAI Zi-hang

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Study of p - y curve method for computing laterally loaded piles under horizontally distributed loads

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- Study of p - y curve method for computing laterally loaded piles under horizontally distributed loads
- Vol. 29, Issue 12, (2008)
- 作者机构：
  
  1. 河海大学岩土力学与堤坝工程教育部重点实验室,南京,210098
  2. 河海大学岩土工程科学研究所,南京,210098
  3. 福州大学土木工程学院,福州,350002
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU473
- Online First：11 August 2013，
  
  Published：2008
- 稿件说明：
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ZHANG Jian-wei, LIU Han-long, DAI Zi-hang. Study of p - y curve method for computing laterally loaded piles under horizontally distributed loads[J]. 2008, 29(12).
DOI：

ZHANG Jian-wei, LIU Han-long, DAI Zi-hang. Study of p - y curve method for computing laterally loaded piles under horizontally distributed loads[J]. 2008, 29(12). DOI：

摘要

为提高现有水平梯形分布荷载推力桩设计计算水平，提出了地基系数按非线性土抗力-水平位移( p – y)曲线抗力模式表达的水平梯形分布荷载推力桩位移和内力计算的有限差分数值分析方法，并详细推导了桩身位移的差分格式。基于这些公式，编制了全桩位移、内力及侧土抗力的计算和图形处理程序，可适用于滑坡抗滑桩和深基坑悬臂支护桩的设计计算。结合新型桩型现浇混凝土薄壁管桩（PCC桩）作为滑坡抗滑桩进行对比分析，算例表明：该方法方便可靠。当有限差分段划分得足够小时，可使数值解接近于真实解。

Abstract

In order to improve the design and calculation of laterally loaded piles

finite difference numerical analysis method which can calculate displacements and internal forces of piles under lateral load of trapezoid distribution is proposed based on nonlinear p - y curve mode of foundation coefficient. The finite difference formulations of displacements of piles are deduced in detail. Based on these formulations

computation and visualization programs of displacements

internal forces of piles and soil reaction are developed for design calculations of anti-slide piles and cantilever retaining piles for deep foundation pits. Taking the new pile cast-in-situ concrete thin-wall pipe pile (PCC pile) as anti-slide pile

a comparison study is computed. The examples show that this method is convenient and reliable. Numerical solutions are close to real solutions when finite differential segments are small enough.

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