| 分布荷载推力桩计算的p-y曲线法研究 |
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| 引用本文： | 张建伟,LIU Han-long,刘汉龙,戴自航.分布荷载推力桩计算的p-y曲线法研究[J].岩土力学,2008,29(12):3370-3374. |
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| 作者姓名： | 张建伟 LIU Han-long 刘汉龙 戴自航 |
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| 作者单位： | 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;河海人学岩土工程科学研究所,南京,210098
2. 福州大学,土木工程学院,福州,350002 |
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| 基金项目： | 国家自然科学基金资助
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江苏省"333高层次人才培养T程"基金
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| 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.
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| 关 键 词： | 水平梯形分布荷载桩 p-y曲线 有限差分法 PCC桩 |
| 收稿时间： | 2007-03-22 |
Study of p-y curve method for computing laterally loaded piles under horizontally distributed loads |
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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].Rock and Soil Mechanics,2008,29(12):3370-3374. |
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| Authors: | ZHANG Jian-wei LIU Han-long DAI Zi-hang |
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| Institution: | 1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China; 2. Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China; 3. College of Civil Engineering, Fuzhou University, Fuzhou 350002, China |
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| 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 d... |
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| Keywords: | piles under lateral load of trapezoid-distribution p-y curve finite difference method PCC pile |
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