[1]庞锋,顾小安,卢明康,等.群桩加筋效应机理研究[J].东南大学学报(自然科学版),2004,34(3):390-392.[doi:10.3969/j.issn.1001-0505.2004.03.025]
 Pang Feng,Gu Xiaoan,Lu Mingkang,et al.Study on reinforcing effect of grouped piles[J].Journal of Southeast University (Natural Science Edition),2004,34(3):390-392.[doi:10.3969/j.issn.1001-0505.2004.03.025]
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群桩加筋效应机理研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
34
期数:
2004年第3期
页码:
390-392
栏目:
交通运输工程
出版日期:
2004-05-20

文章信息/Info

Title:
Study on reinforcing effect of grouped piles
作者:
庞锋1 顾小安2 卢明康2 石名磊1
1 东南大学岩土工程研究所, 南京 210096; 2 常州市高速公路建设指挥部, 常州 213022
Author(s):
Pang Feng1 Gu Xiaoan2 Lu Mingkang2 Shi Minglei1
1 Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China
2 Expressway Construction Headquarters of Changzhou City, Changzhou 213022, China
关键词:
群桩 加筋效应 附加剪应力 弹性理论
Keywords:
grouped piles reinforcing effect additional shear stress elastic theory
分类号:
U443.15
DOI:
10.3969/j.issn.1001-0505.2004.03.025
摘要:
把Poulos的弹性理论法推广到对群桩进行整体分析,群桩中每根桩的形状和荷载可以互不相同.对2根桩的分析表明,受荷桩使其邻桩的桩身产生了附加轴应力及附加剪应力,桩对土的加筋效应就是通过附加剪应力发生的.对群桩的分析表明,其他桩的加筋效应使受荷桩的沉降产生了折减,当桩土模量比和桩间距较小时,忽略桩的加筋效应会对群桩分析带来很大的误差.对群桩内的应力分布分析表明,与单桩相比,由于桩的加筋效应,使得群桩能够把较多的荷载直接传递到桩端平面.
Abstract:
The elastic theory method developed by Poulos is extended to the global analysis of grouped piles. The analysis of two piles shows that the loaded pile induces additional axial stress and shear stress along the shaft of the unloaded pile. The reinforcing effect of piles is caused by the additional shear stress. The analysis of grouped piles shows that the settlement of one pile in grouped piles is smaller than that of a single isolated pile with equal loading as a result of reinforcing effect of other piles. So the reinforcing effect of piles cannot be ignored. The analysis of stress distribution in grouped piles shows that the increasing proportion of the load transmitted at the base of grouped piles stems also from the reinforcing effect of piles.

参考文献/References:

[1] 陈明中.群桩沉降计算理论及桩筏基础优化设计研究[D].杭州:浙江大学土木工程学院,2000.
[2] Mylonakis G,Gazetas G.Settlement and additional internal forces of grouped piles in layered soil [J]. Geotechnique,1998,48(1):55-72.
[3] Poulos H G,Davis E H.Pile foundation analysis and design [M].New York:Wiley,1980.68-70.
[4] 石名磊.大直径钻孔灌注桩的承载力与沉降研究[D].南京:东南大学交通学院,2002.
[5] 刘金砺.桩基础设计与计算[M].北京:中国建筑工业出版社,1990.142-167.

相似文献/References:

[1]边晓亚,郑俊杰,徐志军,等.考虑沉降控制条件的群桩可靠度分析[J].东南大学学报(自然科学版),2015,45(4):782.[doi:10.3969/j.issn.1001-0505.2015.04.029]
 Bian Xiaoya,Zheng Junjie,Xu Zhijun,et al.Reliability analysis of pile groups considering settlement control requirements[J].Journal of Southeast University (Natural Science Edition),2015,45(3):782.[doi:10.3969/j.issn.1001-0505.2015.04.029]

备注/Memo

备注/Memo:
作者简介: 庞锋(1978—),男,硕士生; 石名磊(联系人),男,博士,副教授,mingleish@263.net.
更新日期/Last Update: 2004-05-20