全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用：99美元
投递稿件

查看量下载量

相关文章

更多...

桩周土重固结在挤土桩上产生的负摩擦力及其时效性

, PP. 13-18

Keywords: 道路工程,挤土桩,比奥固结理论,负摩擦力,重固结,时效性

Full-Text   Cite this paper   Add to My Lib

Abstract:

？基于比奥固结理论和ADINA有限元程序,分析了打桩完成后土中超孔隙水压力的消散和桩周土随时间固结沉降情况;然后结合荷载传递函数法,编制计算程序,对某一具体工程桩周土体重固结引起的在挤土桩上产生的负摩擦力及其时效性进行了研究。结果表明:沉桩引起的超孔隙水压力在3个月内基本上完全消散,桩周土重固结沉降在挤土桩上产生负摩擦力;在沉桩完成100d后负摩擦力占桩基设计值的23.8%;所得结论为该工程桩基间歇期的确定提供了参考。

 References

[1]  WANG Liang, ZHAO Jun-hai, LI Xiao-wei, et al.Plastic Analysis of Closely Compacted Pile in Tamping Processes[J].Journal of Changan University:Natural Science Edition, 2007, 27(2):67-70.
[2]  JIANG Xin, LING Jian-ming.Numerical Simulation of Mechanical Behavior for Pile-column-supported Subgrade over Soft Ground[J].Journal of Traffic and Transportation Engineering, 2007, 7(6):70-75.
[3]  ZHAO Ming-hua, ZENG Zhao-yu, LIU Xiao-ming, et al.Reliability of Pile Foundation Under Vertical and Lateral Loads[J].Journal of Architecture and Civil Engineering, 2005, 22(2):57-60.
[4]  FANG Lei, XIE Yong-li.Model Experiment of Pile-soil Stress Ratio of Composite Ground Under Flexible Foundation[J].Journal of Changan University:Nat-ural Science Edition, 2005, 25(2):30-32.
[5]  JIANG Rong, LI Chang-ning.CFG Pile Strengthening Technology of Soft Ground[J].Journal of Traffic and Transportation Engineering, 2004, 4(3):4-7.
[6]  屠毓敏, 俞洪良.负摩擦桩非线性分析[J].中国公路学报, 2001, 14(1):31-34.
[7]  张 定, 陈竹昌, 姚笑青.桩的施工方法对桩基沉降的影响[J].同济大学学报, 1999, 27(6):723-727.
[8]  张雪松, 屠毓敏, 龚晓南, 等.软粘土地基中挤土桩沉降时效性分析[J].岩石力学与工程学报, 2004, 23(19):3365-3369.
[9]  BATHE K J.Finite Element Procedures[M].Upper Saddle River:Prentice Hall, 1996.
[10]  朱 泓, 殷宗泽.打桩效应的有限元分析[J].河海大学学报:自然科学版, 1996, 24(1):56-61.
[11]  朱向荣, 何耀辉, 徐崇峰, 等.饱和软土单桩沉桩超孔隙水压力分析[J].岩石力学与工程学报, 2005, 24(增2):5740-5744.
[12]  胡中雄.土力学与环境土工学[M].上海:同济大学出版社, 1997.
[13]  史佩栋.实用桩基工程手册[M].北京:中国建筑工业出版社, 1999.
[14]  SHI Pei-dong.Manual of Practical Pile Foundation Engineering[M].Beijing:China Architecture & Building Press, 1999.
[15]  王 亮, 赵均海, 李小伟, 等.挤密桩夯填过程的塑性分析[J].长安大学学报:自然科学版, 2007, 27(2):67-70.
[16]  蒋 鑫, 凌建明.软土地区桩柱式路基力学行为的数值模拟[J].交通运输工程学报, 2007, 7(6):70-75.
[17]  赵明华, 曾昭宇, 刘晓明, 等.考虑轴向横向荷载共同作用的基桩可靠度[J].建筑科学与工程学报, 2005, 22(2):57-60.
[18]  方 磊, 谢永利.柔性基础下复合地基桩土应力比模型试验[J].长安大学学报:自然科学版, 2005, 25(2):30-32.
[19]  姜 蓉, 李昌宁.软土地基CFG桩加固技术[J].交通运输工程学报, 2004, 4(3):4-7.
[20]  POULOS H G, DAVIS E H.Pile Foundation Ana-lysis and Design[M].New York:John Wiley & Sons, 1980.
[21]  TU Yu-min, YU Hong-liang.Nolinear Analysis of Negative Pile[J].China Journal of Highway and Transport, 2001, 14(1):31-34.
[22]  ZHANG Ding, CHEN Zhu-chang, YAO Xiao-qing.Effects of Pile Installation on Settlement of Groups[J].Journal of Tongji University, 1999, 27(6):723-727.
[23]  ZHANG Xue-song, TU Yu-min, GONG Xiao-nan, et al.Time-dependency Analysis of Soil Compaction Pile in Soft Clay Ground[J].Chinese Journal of Rock Mechanics and Engineering, 2004, 23(19):3365-3369.
[24]  赵明华, 贺 炜, 曹文贵.基桩负摩阻力计算方法初探[J].岩土力学, 2004, 25(9):1442-1446.
[25]  ZHAO Ming-hua, HE Wei, CAO Wen-gui.Study on Calculation of Negative Skin Friction Resistance on Piles[J].Rock and Soil Mechanics, 2004, 25(9):1442-1446.
[26]  ZHU Hong, YIN Zong-ze.Finite Element Analysis of Pile Driving Effect[J].Journal of Hohai University:Natural Sciences, 1996, 24(1):56-61.
[27]  ZHU Xiang-rong, HE Yao-hui, XU Chong-feng, et al.Excess Pore Water Pressure Caused by Single Pile Driving in Saturated Soft Soil[J].Chinese Journal of Rock Mechanics and Engineering, 2005, 24(S2):5740-5744.
[28]  HU Zhong-xiong.Soil Mechanics and Environmental Soil Mechanics[M].Shanghai:Tongji University Press, 1997.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133