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被动方桩土拱效应三维有限元分析

聂如松,  冷伍明,  邓宗伟,  赵健

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文章导航 > 工业建筑  > 2007 >  37(7): 47-52
聂如松, 冷伍明, 邓宗伟, 赵健. 被动方桩土拱效应三维有限元分析[J]. 工业建筑, 2007, 37(7): 47-52. doi: 10.13204/j.gyjz200707015
引用本文: 聂如松, 冷伍明, 邓宗伟, 赵健. 被动方桩土拱效应三维有限元分析[J]. 工业建筑, 2007, 37(7): 47-52. doi: 10.13204/j.gyjz200707015
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Nie Rusong, Leng Wuming, Deng Zongwei, Zhao Jian. 3D FINITE ELEMENT RESEARCH ON SOIL ARCHING EFFECT BETWEEN THE PASSIVE SQUARE PILES[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(7): 47-52. doi: 10.13204/j.gyjz200707015
Citation: Nie Rusong, Leng Wuming, Deng Zongwei, Zhao Jian. 3D FINITE ELEMENT RESEARCH ON SOIL ARCHING EFFECT BETWEEN THE PASSIVE SQUARE PILES[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(7): 47-52. doi: 10.13204/j.gyjz200707015
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被动方桩土拱效应三维有限元分析

doi: 10.13204/j.gyjz200707015
  • 1.

    中南大学 土木建筑学院 长沙 410075

详细信息
    作者简介:

    聂如松 男 1980年8月出生 博士研究生 E-mail:nierusong97@163.com

3D FINITE ELEMENT RESEARCH ON SOIL ARCHING EFFECT BETWEEN THE PASSIVE SQUARE PILES

  • 1.

    Civil Engineering and Architecture Institute,Central South University Changsha 410075

    摘要
  • 摘要: 基于大型有限元软件包ADINA,建立模拟被动方桩的三维有限元模型,对在桩顶边界条件和桩土接触变化时桩基的不同性状进行分析:包括土拱效应机理,桩土间的成拱效应,桩身挠度与表面荷载的变化规律以及桩侧土压力、桩身轴力的变化规律。分析结果表明,黏性土地基在邻近堆载作用下,桩身挠度与表面荷载呈非线性关系,可以用三折线模型来模拟;桩顶自由时,桩前土压力介于朗肯主动土压力与被动土压力间,呈非线性分布;在同种土中,桩侧极限土压力沿桩身呈线性分布,但比Ito理论和沈珠江理论都小。
    Abstract: Based on the finite element program ADINA,a 3D finite element study considering the boundary condition and the contact condition is used to determine the pile-soil-pile interaction behaviour for closely spaced square passive pile rows.The mechanism of soil arching,the relation of the pile deflection and the surface load,the soil pressure of the side of pile and the axial force are studied.It is shown that the nonlinear relation between the pile deflection and the surface load can be modeled by three broken model. The earth pressure on the side of pile is smaller than the Rankine passive pressure and larger than the Rankine active pressure.The ultimate pressure on the piles in the same soil shows linear and smaller than that by the Ito theory and the Shen Zhujiang's theory.
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    • 参考文献(17)
  • Terzaghi K.Theoretical Soil Mechanics.New York:John Wiley Son,1943
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    [6] 陈福全.地面堆载作用下邻近桩基性态数值分析:[博士学位论文].上海:同济大学,2003
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    [10] ADINA Theory and Modeling Guide Volume Ⅰ:ADINA.ADINA R D,Inc,2003:417-418
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    [14] 沈珠江.桩的抗滑阻力和抗滑桩的极限设计.岩土工程学报,1992,14(1):51-56
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    [16] 聂如松,冷伍明.软土地基桥台桩基负摩擦力试验研究.铁道建筑,2005(6):1-4
    [17] 律文田,冷伍明,王永和.软土地区桥台桩基负摩擦力试验研究.岩土工程学报,2005,27(6):642-645
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出版历程
  • 收稿日期:  2006-12-21
  • 刊出日期:  2007-07-20

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