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ZHANG Lei, SHEN Jianhao, CHEN Cheng, LUO Danyang. Lateral bearing characteristics of inclined pile-cap system installed in sandy ground[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(1): 120-130. DOI: 10.11779/CJGE20221180
Citation: ZHANG Lei, SHEN Jianhao, CHEN Cheng, LUO Danyang. Lateral bearing characteristics of inclined pile-cap system installed in sandy ground[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(1): 120-130. DOI: 10.11779/CJGE20221180

Lateral bearing characteristics of inclined pile-cap system installed in sandy ground

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  • Received Date: September 23, 2022
  • Available Online: May 03, 2023
  • The lateral bearing characteristics of inclined pile-cap systems installed in sandy soil are comprehensibly studied via a series of laboratory model tests, and the influences of inclination angle and flexural rigidity of pile on the lateral displacement at pile top and the distribution of pile bending moment are analyzed. Based on the model tests, a suite of three-dimensional finite element analyses are performed, and the favorable comparison of the test and numerical results convinces the capability of the adopted finite element analysis procedure in replicating the stress and deformation characteristics of the inclined piles in the model tests. Subsequently, a number of numerical parametric analyses based on the prototype models are implemented, accounting for the elastic-plastic mechanical properties of the pile, as well as the variations in elastic modulus of soil, flexural rigidity and length of the pile. The analysis results show that the variation in the elastic modulus of soil has a more significant effect on the lateral bearing capacity of the inclined pile-cap system than the change in pile flexural rigidity. When the pile length is less than 25 times the pile diameter(D), the increase of pile length can effectively reduce the lateral displacement response at the pile top. Otherwise, increasing the pile length has negligible effects on enhancing the lateral performance of the inclined pile-cap system. Furthermore, the multivariate regression analysis is performed based on the test data of lateral displacement at pile top, from which a semi-empirical equation can be derived. The performance of this semi-empirical equation is favorably examined by both the relevant experimental data and the numerical parametric analysis results, which likely provides a useful reference for the design and analysis of the inclined pile-cap system in sandy ground.
  • [1]
    郑刚, 何晓佩, 周海祚, 等. 基坑斜-直交替支护桩工作机理分析[J]. 岩土工程学报, 2019, 41(增刊1): 97-100. doi: 10.11779/CJGE2019S1025

    ZHENG Gang, HE Xiaopei, ZHOU Haizuo, et al. Working mechanism of inclined-vertical retaining piles in excavations[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S1): 97-100. (in Chinese) doi: 10.11779/CJGE2019S1025
    [2]
    GUO L, ZHANG Z Q, WANG X B, et al. Stability analysis of transmission tower foundations in permafrost equipped with thermosiphons and vegetation cover on the Qinghai-Tibet Plateau[J]. International Journal of Heat and Mass Transfer, 2018, 121: 367-376. doi: 10.1016/j.ijheatmasstransfer.2018.01.009
    [3]
    ZHENG G, YANG X Y, ZHOU H Z, et al. A simplified prediction method for evaluating tunnel displacement induced by laterally adjacent excavations[J]. Computers and Geotechnics, 2018, 95: 119-128. doi: 10.1016/j.compgeo.2017.10.006
    [4]
    吕凡任. 倾斜荷载作用下斜桩基础工作性状研究[D]. 杭州: 浙江大学, 2004.

    LÜ Fanren. Study on Behavior of Battered Piles under Inclined Load[D]. Hangzhou: Zhejiang University, 2004. (in Chinese)
    [5]
    王新泉, 陈永辉, 安永福, 等. 塑料套管现浇混凝土桩倾斜对承载性能影响的模型试验研究[J]. 岩石力学与工程学报, 2011, 30(4): 834-842.

    WANG Xinquan, CHEN Yonghui, AN Yongfu, et al. Model test study of effect of inclination on bearing behaviors of plastic tube cast-in-place concrete pile[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(4): 834-842. (in Chinese)
    [6]
    SABBAGH T T, AL-SALIH O, AL-ABBOODI I. Experimental investigation of batter pile groups behaviour subjected to lateral soil movement in sand[J]. International Journal of Geotechnical Engineering, 2020, 14(7): 705-716. doi: 10.1080/19386362.2019.1585596
    [7]
    MEYERHOF G G, YALCIN A S. Behaviour of flexible batter piles under inclined loads in layered soil[J]. Canadian Geotechnical Journal, 1993, 30(2): 247-256. doi: 10.1139/t93-021
    [8]
    ZHANG L M, MCVAY M C, LAI P W. Centrifuge modelling of laterally loaded single battered piles in sands[J]. Canadian Geotechnical Journal, 1999, 36(6): 1074-1084. doi: 10.1139/t99-072
    [9]
    HAZZAR L, HUSSIEN M N, KARRAY M. Numerical investigation of the lateral response of battered pile foundations[J]. International Journal of Geotechnical Engineering, 2017, 11(4): 376-392. doi: 10.1080/19386362.2016.1224030
    [10]
    BAJAJ P, YADU L, CHOUKSEY S K. Study on vertical and batter piles subjected to lateral loads in different non-cohesive sub-soil conditions[J]. International Journal of Geotechnical Engineering, 2020, 14(6): 603-613. doi: 10.1080/19386362.2018.1564181
    [11]
    KONG D S, DENG M X, LI Y Z. Experimental study on mechanical deformation characteristics of inclined and straight alternating pile groups[J]. Advances in Civil Engineering, 2020, 2020: 1-11.
    [12]
    RAJASHREE S S, SITHARAM T G. Nonlinear finite-element modeling of batter piles under lateral load[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2001, 127(7): 604-612. doi: 10.1061/(ASCE)1090-0241(2001)127:7(604)
    [13]
    黄剑慧, 陈红兵, 刘杰伟, 等. 群桩中的斜桩受力分析与计算[J]. 广东土木与建筑, 2007, 14(8): 21-23.

    HUANG Jianhui, CHEN Hongbing, LIU Jiewei, et al. Force analysis and calculation of inclined piles in pile groups[J]. Guangdong Architecture Civil Engineering, 2007, 14(8): 21-23. (in Chinese)
    [14]
    LING D, REN T, WANG Y. A p-y curve method for horizontal bearing characteristics of single batter pile in sands[J]. Rock Soil Mech, 2013, 34(1): 155-162.
    [15]
    REESE L C, COX W R, KOOP F D. Analysis of laterally loaded piles in sand[C]//Proceedings of the Sixth Annual Offshore Technology Conference. Texas, 1974.
    [16]
    曹卫平, 吴奇兴, 夏冰, 等. 考虑上拔荷载影响的水平受荷斜桩p-y曲线[J]. 岩土工程学报, 2020, 42(7): 1189-1198. doi: 10.11779/CJGE202007002

    CAO Weiping, WU Qixing, XIA Bing, et al. p-y curve of laterally loaded batter piles considering effect of uplift loads[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(7): 1189-1198. (in Chinese) doi: 10.11779/CJGE202007002
    [17]
    樊文甫. 水平受荷斜桩承载变形性状数值分析[D]. 西安: 西安建筑科技大学, 2016.

    FAN Wenfu. Numerical Analyses on the Behavior of Horizontally Loaded Batter Piles[D]. Xi'an: Xi'an University of Architecture and Technology, 2016. (in Chinese)
    [18]
    曹卫平, 葛欣. 水平受荷斜桩承载变形性状及荷载传递机理分析[J]. 西安建筑科技大学学报(自然科学版), 2017, 49(5): 624-629.

    CAO Weiping, GE Xin. Analyses of bearing capacity and load transfer mechanism of horizontally loaded batter piles[J]. Journal of Xi'an University of Architecture & Technology (Natural Science Edition), 2017, 49(5): 624-629. (in Chinese)
    [19]
    王恩钰, 周海祚, 郑刚, 等. 基坑倾斜桩支护的变形数值分析[J]. 岩土工程学报, 2019, 41(增刊1): 73-76. doi: 10.11779/CJGE2019S1019

    WANG Enyu, ZHOU Haizuo, ZHENG Gang, et al. Numerical analyses of deformation of inclined pile-retained excavations[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S1): 73-76. (in Chinese) doi: 10.11779/CJGE2019S1019
    [20]
    赵爽, 吴君涛, 张日红, 等. 砂土中斜桩单桩水平承载与变形特性数值分析[J]. 中南大学学报(自然科学版), 2022, 53(2): 579-588.

    ZHAO Shuang, WU Juntao, ZHANG Rihong, et al. Numerical analysis of horizontal bearing capacity and deflection behaviors of single batter pile in sand[J]. Journal of Central South University (Science and Technology), 2022, 53(2): 579-588. (in Chinese)
    [21]
    土工试验方法标准: GB/T 50123—2019[S]. 北京: 中国计划出版社, 2019.

    Standard for Soil Test Method: GB/T 50123—2019[S]. Beijing: China Planning Press, 2019. (in Chinese)
    [22]
    建筑基桩检测技术规范: JGJ 106—2014[S]. 北京: 中国建筑工业出版社, 2014.

    Technical Code for Testing of Building Foundation Piles: JGJ 106—2014[S]. Beijing: China Architecture & Building Press, 2014. (in Chinese)
    [23]
    袁志林, 段梦兰, 陈祥余, 等. 水平荷载下导管架平台桩基础的非线性有限元分析[J]. 岩土力学, 2012, 33(8): 2551-2560.

    YUAN Zhilin, DUAN Menglan, CHEN Xiangyu, et al. Nonlinear finite element analysis of jacket platform pile foundations under lateral loads[J]. Rock and Soil Mechanics, 2012, 33(8): 2551-2560. (in Chinese)
    [24]
    刘晋超, 熊根, 朱斌, 等. 砂土海床中大直径单桩水平承载与变形特性[J]. 岩土力学, 2015, 36(2): 591-599.

    LIU Jinchao, XIONG Gen, ZHU Bin, et al. Bearing capacity and deflection behaviors of large diameter monopile foundations in sand seabed[J]. Rock and Soil Mechanics, 2015, 36(2): 591-599. (in Chinese)
    [25]
    张磊, 周腾, 芮瑞, 等. 软黏土场地桩基桥墩系统地震损伤特性的三维有限元动力分析[J]. 振动与冲击, 2021, 40(23): 109-119.

    ZHANG Lei, ZHOU Teng, RUI Rui, et al. Three-dimensional finite element analyses of clay-pile-pier systems subjected to seismic motions[J]. Journal of Vibration and Shock, 2021, 40(23): 109-119. (in Chinese)
    [26]
    混凝土结构设计规范: GB 50010—2010[S]. 北京: 中国建筑工业出版社, 2011.

    Code for Design of Concrete Structures: GB 50010—2010[S]. Beijing: China Architecture & Building Press, 2011. (in Chinese)
    [27]
    郑刚, 王玉萍, 程雪松, 等. 基坑倾斜桩支护性能及机理大型模型试验研究[J]. 岩土工程学报, 2021, 43(9): 1581-1591. doi: 10.11779/CJGE202109002

    ZHENG Gang, WANG Yuping, CHENG Xuesong, et al. Large-scale model tests on performance and mechanism of inclined retaining structures of excavations[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(9): 1581-1591. (in Chinese) doi: 10.11779/CJGE202109002
    [28]
    郑刚, 王丽. 竖向及水平荷载加载水平、顺序对单桩承载力的影响[J]. 岩土工程学报, 2008, 30(12): 1796-1804. http://www.cgejournal.com/cn/article/id/13062

    ZHENG Gang, WANG Li. Effect of loading level and sequence of vertical and lateral load on bearing capacity of single pile[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(12): 1796-1804. (in Chinese) http://www.cgejournal.com/cn/article/id/13062
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