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Volume 40 Issue S2
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WAN Zhi-hui, DAI Guo-liang, WANG Lei, GONG Wei-ming, ZHU Ming-xing. Experimental study on bearing behaviors of post-grouting bored piles in cohesive soils[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(S2): 194-198. DOI: 10.11779/CJGE2018S2039
Citation: WAN Zhi-hui, DAI Guo-liang, WANG Lei, GONG Wei-ming, ZHU Ming-xing. Experimental study on bearing behaviors of post-grouting bored piles in cohesive soils[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(S2): 194-198. DOI: 10.11779/CJGE2018S2039
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Experimental study on bearing behaviors of post-grouting bored piles in cohesive soils

  • 1. Key Laboratory for RC and PRC Structure, Ministry of Education, Nanjing 211189, China;
    2. School of Civil Engineering, Southeast University, Nanjing 211189, China;
    3. China Energy Engineering Group Jiangsu Power Design Institute Co., Ltd., Nanjing 211102, China

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  • Received Date: July 21, 2018
  • Published Date: October 29, 2018
    Graphical Abstract
    • Abstract
  • Based on the load tests on eight field piles at four sites of Jianghai West Road in Wuxi City, the bearing and deformation characteristics of piles, bearing capacities at pile tip and friction behaviors of the grouted piles are studied by comparing the field test results of the ungrouted and grouted piles. The results show that the pile tip grouting technique can significantly improve the bearing capacity of pile foundation and has a good effect on improving the stability of pile quality. The cement-stabilized soil is formed at the pile tip by the pile tip pressurized grout, which the sediment at the pile tip is effectively improved, and the bearing performances of the pile tip and the bearing stiffness are significantly enhanced. Moreover, the side friction ultimate resistance is significantly improved by the pile tip post grouting, and the side friction ultimate resistance of the grouted piles is larger than that of the ungrouted ones. Consequently, the stability of the bearing capacity of the pile foundation is improved by the pile tip post grouting.
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    • References (12)
  • [1]
    张忠苗. 桩基工程[M]. 北京: 中国建筑工业出版社, 2009.
    (ZHANG Zhong-miao.Pile foundation engineering[M]. Beijing: China Architecture & Building Press, 2009. (in Chinese))
    [2]
    MULLINS G, WINTERS D, STEVEN D.Predicting end bearing capacity of post-grouted drilled shaft in cohesioniess soils[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2006, 132(4): 478-487.
    [3]
    张建新, 吴东云. 桩端阻力与桩侧阻力的相互作用研究[J]. 岩土力学, 2008, 29(2): 541-544.
    (ZHANG Jian-xin, WU Dong-yun.Research on Interaction between resistance at pile and lateral resistance of pile[J]. Rock and Soil Mechanics, 2008, 29(2): 541-544. (in Chinese))
    [4]
    戴国亮, 万志辉. 后压浆桩增强效应作用机制及荷载沉降关系研究[J]. 岩土工程学报, 2017, 39(12): 2235-2244.
    (DAI Guo-liang, WAN Zhi-hui.Study on enhanced mechanism and load settlement relationship of post grouting pile[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(12): 2235-2244. (in Chinese))
    [5]
    万志辉, 戴国亮, 龚维明, 等. 基于自平衡法后压浆灌注桩荷载传递函数的变化分析[J]. 土木工程学报, 2017, 50(8): 98-104.
    (WAN Zhi-hui, DAI Guo-liang, GONG Wei-ming, et al.Analysis on the load transfer function of post-grouting bored pile based on self-balanced method[J]. China Civil Engineering Journal, 2017, 50(8): 98-104. (in Chinese))
    [6]
    戴国亮, 龚维明, 程晔, 等. 自平衡测试技术及桩端后压浆工艺在大直径超长桩的应用[J]. 岩土工程学报, 2005, 27(6): 690-694.
    (DAI Guo-liang, GONG Wei-ming, CHENG Ye, et al.Application of self-balanced testing and post grouting to large diameter and super-long piles[J], Chinese Journal of Geotechnical Engineering, 2005, 27(6): 690-694. (in Chinese))
    [7]
    DAI G, GONG W, ZHAO X, et al.Static testing of pile-base post-grouting piles of the Suramadu bridge[J]. Geotechnical Testing Journal, 2010, 34(1): 34-49.
    [8]
    DUAN X, KULHAWY F H.Tip post-grouting of slurry-drilled shafts in soil: Chinese experiences[C]// Contemporary Topics in Deep Foundations, ASCE. Orlando, 2009: 47-54.
    [9]
    万志辉, 戴国亮, 龚维明, 等. 超厚粉细砂地层组合压浆桩压浆效果试验[J]. 中国公路学报, 2018, 31(3): 59-67.
    (WAN Zhi-hui, DAI Guo-liang, GONG Wei-ming, et al.Experiment on grouting effects of combined grouting piles under extra-thick fine silty sand layer[J]. China Journal of Highway and Transportation, 2018, 31(3): 59-67. (in Chinese))
    [10]
    张忠苗, 张乾青. 后注浆抗压桩受力性状的试验研究[J]. 岩石力学与工程学报, 2009, 28(3): 475-482.
    (ZHANG Zhong-miao, ZHANG Qian-qing.Experimental study on mechanical properties of post-grouting compressive pile[J]. Chinese Joural of Rock Mechanics and Engineering, 2009, 28(3): 475-482. (in Chinese))
    [11]
    盛春陵, 王守超, 李仁民. 大直径嵌岩后注浆钻孔灌注桩试桩分析[J]. 岩土工程学报, 2012, 34(S1): 423-426.
    (SHENG Chun-ling, WANG Shou-chao, LI Ren-min.Pile test analysis of large-diameter rock grouting bored piles[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(S1): 423-426. (in Chinese))
    [12]
    WAN Z H, DAI G L, GONG W M.Full-scale load testing of two large diameter drilled shafts in coral-reef limestone formations[J]. Bulletin of Engineering Geology and Environment, 2018, 77(3): 1127-1143.
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