挤扩支盘桩抗拔承载性能计算及优化分析

卞跃威; 曾毅; 何镇远; 黎小平; 付艳斌; 余征毅

doi:10.19713/j.cnki.43-1423/u.T20251432

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挤扩支盘桩抗拔承载性能计算及优化分析

轨道与基础 | 更新时间：2026-07-24

- 挤扩支盘桩抗拔承载性能计算及优化分析
- Calculation and optimization of uplift bearing capacity of squeezed branch piles
- 铁道科学与工程学报 2026年23卷第7期页码：3265-3277
- 作者机构：
  
  1.上海市隧道工程轨道交通设计研究院，上海 200235
  2.深圳大学极端环境岩土和隧道工程智能建养全国重点实验室，广东深圳 518060
  3.深圳大学土木与交通工程学院，广东深圳 518060
  4.矿山深井建设技术国家工程研究中心，广东深圳 518060
- 作者简介：
  
  付艳斌(1977—)，男，广东深圳人，教授，博士，从事岩土及隧道工程研究；E-mail：fuyanbin999@163.com
- 基金信息：
  
  广东省基础与应用基础研究基金(2025A1515010671);深圳市科技计划项目(20240809110122002;20220525163716003);上海申通地铁集团有限公司科研计划项目(ST-TY020-2024)
- DOI：10.19713/j.cnki.43-1423/u.T20251432
  中图分类号： TU47
- 收稿：2025-09-12，
  
  网络首发：2026-07-24，
  
  纸质出版：2026-07-28
- 稿件说明：
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卞跃威,曾毅,何镇远等.挤扩支盘桩抗拔承载性能计算及优化分析[J].铁道科学与工程学报,2026,23(07):3265-3277.

BIAN Yuewei,ZENG Yi,HE Zhenyuan,et al.Calculation and optimization of uplift bearing capacity of squeezed branch piles[J].Journal of Railway Science and Engineering,2026,23(07):3265-3277.
卞跃威,曾毅,何镇远等.挤扩支盘桩抗拔承载性能计算及优化分析[J].铁道科学与工程学报,2026,23(07):3265-3277. DOI： 10.19713/j.cnki.43-1423/u.T20251432.

BIAN Yuewei,ZENG Yi,HE Zhenyuan,et al.Calculation and optimization of uplift bearing capacity of squeezed branch piles[J].Journal of Railway Science and Engineering,2026,23(07):3265-3277. DOI： 10.19713/j.cnki.43-1423/u.T20251432.

摘要

为解决滨海填海区水文地质条件复杂而导致挤扩支盘桩基础抗拔承载性能无法充分发挥的问题，依托深圳市滨海大道(总部基地段)交通改造工程，采用现场原型试验的方法，分析两根挤扩支盘桩加卸载量与桩顶位移的关系曲线。采用三维数值软件建立挤扩支盘桩精细化数值模型，与现场实测数据进行对比验证，并分析了盘结构在滨海填海区主要持力地层中的抗拔承载性能及最佳盘间距，提出了各地层盘结构抗拔承载力特征值修正系数。结果表明：在滨海填海区复杂地层中应用挤扩支盘桩时，将盘结构设置在全风化粗粒花岗岩层中的抗拔承载性能最佳，桩顶位移分别为含黏性土砾砂层和砾质黏性土层的43.70%、85.37%；含黏性土砾砂、砾质黏性土及全风化粗粒花岗岩层中盘结构抗拔承载力特征值修正系数分别建议取1.78、1.36、1.02；当盘间距较小时，盘间内嵌土体为圆筒状破坏，不利于桩基抗拔承载性能的发挥。增大盘间距，盘间内嵌土体由圆筒状破坏转变为界面破坏，对桩基抗拔承载性能的提升较大；继续增大盘间距，内嵌土体保持界面破坏不变，对桩基抗拔承载性能的提升幅度减小；在含黏性土砾砂层及全风化粗粒花岗岩层中，盘间距宜取2.5

；在砾质黏性土层中，盘间距宜取1.5

。研究结果可为进一步优化滨海填海区复杂地层中挤扩支盘桩的设计及应用提供参考。

Abstract

To address the insufficient uplift bearing performance of squeezed branch piles (SBPs) caused by complex hydrogeological conditions in coastal reclamation areas

in-situ full-scale tests were conducted on two SBPs in the Binhai Avenue (Headquarters Base Section) reconstruction project in Shenzhen. The relationships between loading and unloading magnitudes and pile head displacements were analyzed. A refined three-dimensional numerical model of the SBPs was developed and validated against field data. The uplift behavior and optimal plate spacing in major bearing strata were investigated

and correction factors for the characteristic uplift bearing capacity were proposed. Results indicate that the best uplift performance occurs when the plate structure is embedded in Completely Weathered Coarse-Grained Granite

where the pile head displacements are 43.70% and 85.37% of those in Clayey Sandy Gravel and Gravelly Clayey Soil

respectively. The recommended correction factors of uplift bearing capacity for branches and plates in Clayey Sandy Gravel

Gravelly Clayey Soil

and Comp

letely Weathered Coarse-Grained Granite are 1.78

1.36

and 1.02

respectively. When the plate spacing is small

the inter-plate soil fails in a cylindrical pattern

which is unfavorable for uplift resistance. As the spacing increases

the failure mode changes to interface failure

greatly improving uplift performance. However

further increasing the spacing maintains the interface failure mode while yielding marginal additional benefits. The optimal plate spacing is 2.5

in Clayey Sandy Gravel and Completely Weathered Coarse-Grained Granite

and 1.5

in Gravelly Clayey Soil. The findings can provide useful guidance for optimizing the design and application of SBPs in complex strata of coastal reclamation areas.

关键词

Keywords

references

WU Jinghong , XU Shaowen , SHI Bin , et al . Observation and evaluation of soil stratum deformation in reclamation area under ocean tides [J ] . Canadian Geotechnical Journal , 2024 : cgj-2023-0690.

肖友银 , 喻伟 , 施劭矗 , 等 . 填海地层挤扩支盘桩抗压抗拔静载试验研究 [J ] . 公路 , 2023 , 68 ( 1 ): 93 - 101 .

XIAO Youyin , YU Wei , SHI Shaochu , et al . Research on compression and pullout static load test of squeezed branch pile in reclamation stratum [J ] . Highway , 2023 , 68 ( 1 ): 93 - 101 .

XIONG Li , LI Guowei , ZHOU Yang , et al . Experimental and analytical investigation of the bearing capacity of bulbs for squeezed branch piles [J ] . International Journal of Geomechanics , 2023 , 23 ( 5 ): 04023045 .

谢宏丽 , 王苗苗 , 田叶青 , 等 . 挤扩支盘桩承载特性数值分析与沉降特性研究 [J ] . 建筑科学与工程学报 , 2025 , 42 ( 4 ): 197 - 206 .

XIE Hongli , WANG Miaomiao , TIAN Yeqing , et al . Numerical analysis of bearing behavior and settlement characteristics of squeezed branch piles [J ] . Journal of Architecture and Civil Engineering , 2025 , 42 ( 4 ): 197 - 206 .

张坤标 , 汪益敏 , 陈页开 , 等 . 基于承载特性的挤扩支盘桩加固深厚软基作用机理研究 [J ] . 岩土工程学报 , 2024 , 46 ( S2 ): 97 - 102 .

ZHANG Kunbiao , WANG Yimin , CHEN Yekai , et al . Mechanism of reinforcement of squeezed branch piles for deep soft foundation based on load bearing capacities [J ] . Chinese Journal of Geotechnical Engineering , 2024 , 46 ( S2 ): 97 - 102 .

潘玲 , 熊力 , 何志军 , 等 . 沉降对应的支盘桩承载力控制方法研究 [J ] . 岩石力学与工程学报 , 2024 , 43 ( 10 ): 2443 - 2454 .

PAN Ling , XIONG Li , HE Zhijun , et al . A controlling method of the settlement-induced bearing capacity of squeezed branch piles [J ] . Chinese Journal of Rock Mechanics and Engineering , 2024 , 43 ( 10 ): 2443 - 2454 .

YANG Yuqi , MA Hongwei , HU Zhitao , et al . The calculation method for the horizontal bearing capacity of squeezed branch piles considering the plate-soil nonlinear interaction [J ] . Applied Sciences , 2023 , 13 ( 24 ): 13229 .

ZHANG Siqing , LIU Xiaofei , ZHANG Huajie , et al . Study on the force model of squeezed branch piles based on surface potential characteristics [J ] . Buildings , 2023 , 13 ( 9 ): 2231 .

SHI Dequan , XIAO Jian , YANG Chun , et al . Research on the plate cavity geometry of the squeezed branch pile [J ] . Procedia Engineering , 2014 , 73 : 29 - 34 .

MA Lixing , SHI Zhuopeng , HAN Kai , et al . Numerical simulation study of squeezed branch piles based on post-grouting technology [J ] . E3S Web of Conferences , 2021 , 292 : 01038 .

LI Guowei , ZHAO Xingyu , ZHANG Liming , et al . Model tests on deep soft ground improvement of existing sand-filled subgrade with squeezed branch piles [J ] . Chinese Journal of Geotechnical Engineering , 2024 , 46 ( 8 ): 1768 - 1775 .

杨培伟 , 唐淼 . 挤扩支盘桩在狮子洋通道桥梁工程中的应用 [J ] . 公路 , 2024 , 69 ( 7 ): 147 - 151 .

YANG Peiwei , TANG Miao . Application of multi-branch pile in bridge engineering of shiziyang link project [J ] . Highway , 2024 , 69 ( 7 ): 147 - 151 .

LI Ting , XU Peng , YANG Guangqing . Investigation into bearing performance of concrete expanded-plates piles: Field test and numerical modelling [J ] . Engineering Structures , 2022 , 271 : 114954 .

张黎明 , 贵宁 , 李国维 , 等 . 支盘桩外轮廓跨孔超声波检测现场试验研究 [J ] . 公路交通科技 , 2024 , 41 ( 7 ): 93 - 100 .

ZHANG Liming , GUI Ning , LI Guowei , et al . In-situ experimental study on squeezed branch pile outer profile cross-hole ultrasonic detection [J ] . Journal of Highway and Transportation Research and Development , 2024 , 41 ( 7 ): 93 - 100 .

ZHOU J , HUANG X , ZHANG J , et al . Experimental investigation of the uplift and lateral bearing capacity of root piles [J ] . Soil Mechanics and Foundation Engineering , 2021 , 57 ( 6 ): 473 - 479 .

WANG Ziqi , ZHAO Cunbao , ZHANG Wenyue . Multi-objective design and optimization of squeezed branch pile based on orthogonal test [J ] . Scientific Reports , 2023 , 13 : 22508 .

杨治军 , 谢永利 , 范祥 , 等 . 抗拔支盘桩首盘深度与抗拔力的关系研究 [J ] . 铁道科学与工程学报 , 2019 , 16 ( 10 ): 2442 - 2450 .

YANG Zhijun , XIE Yongli , FAN Xiang , et al . A study on the relationship between first disk depth and pullout resistance of uplift branch pile [J ] . Journal of Railway Science and Engineering , 2019 , 16 ( 10 ): 2442 - 2450 .

中华人民共和国住房和城乡建设部 . 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 .

Ministry of Housing and Urban-Rural Development of the People’s Republic of China . Technical code for testing of building foundation piles : JGJ 106—2014 [S ] . Beijing : China Architecture & Building Press , 2014 .

丘燊 , 张国梁 , 曾昭宇 , 等 . 基于正交试验法的挤扩支盘桩加固公路软基参数敏感性 [J ] . 科学技术与工程 , 2024 , 24 ( 29 ): 12675 - 12683 .

QIU Shen , ZHANG Guoliang , ZENG Zhaoyu , et al . Sensitivity for factors of squeezed branch piles in soft foundation reinforcement of highway based on orthogonal test method [J ] . Science Technology and Engineering , 2024 , 24 ( 29 ): 12675 - 12683 .

易浩 , 张坤标 , 陈页开 , 等 . 软土地区挤扩支盘桩竖向承载特性研究 [J ] . 世界桥梁 , 2021 , 49 ( 5 ): 79 - 86 .

YI Hao , ZHANG Kunbiao , CHEN Yekai , et al . Study of vertical bearing capacity of squeezed branch pile in soft soil area [J ] . World Bridges , 2021 , 49 ( 5 ): 79 - 86 .

王安福 , 熊力 , 李国维 , 等 . 支盘桩极限承载力现场破坏性试验及理论分析 [J ] . 公路交通科技 , 2023 , 40 ( 10 ): 95 - 103 .

WANG Anfu , XIONG Li , LI Guowei , et al . Field destructive test and theoretical analysis on ultimate bearing capacity of squeezed branch pile [J ] . Journal of Highway and Transportation Research and Development , 2023 , 40 ( 10 ): 95 - 103 .

李连祥 , 李先军 , 成晓阳 , 等 . 考虑圆孔扩张理论的支盘桩荷载传递法 [J ] . 中国公路学报 , 2018 , 31 ( 8 ): 20 - 29 .

LI Lianxiang , LI Xianjun , CHENG Xiaoyang , et al . Load transfer method for squeezed and branch piles considering cavity expansion theory [J ] . China Journal of Highway and Transport , 2018 , 31 ( 8 ): 20 - 29 .

中华人民共和国交通运输部 . 公路桥涵地基与基础设计规范 : JTG 3363-2019 [S ] . 北京 : 人民交通出版社 , 2019 .

Ministry of Transport of the People’s Republic of China . Specifications for design of highway bridge foundations : JTG 3363-2019 [S ] . Beijing : People’s Communications Press , 2019 .

ZHOU Yang , SONG Ming , LIU Yang , et al . Analytical solution for predicting uplift bearing capacity of branch pile [J ] . Geotechnical and Geological Engineering , 2024 , 43 ( 1 ): 32 .

中华人民共和国建设部 . 建筑桩基技术规范 : JGJ 94—2008 [S ] . 北京 : 中国建筑工业出版社 , 2008 .

Ministry of Construction of the People’s Republic of China . Technical code for building pile foundations : JGJ 94—2008 [S ] . Beijing : China Architecture & Building Press , 2008 .

鞠彦忠 , 赵小盘 , 王德弘 , 等 . 挤扩支盘桩抗拔承载性能试验研究与数值分析 [J ] . 科学技术与工程 , 2016 , 16 ( 17 ): 262 - 268 .

JU Yanzhong , ZHAO Xiaopan , WANG Dehong , et al . Field test study and numerical simulation on uplift bearing capacity of squeezed branch pile [J ] . Science Technology and Engineering , 2016 , 16 ( 17 ): 262 - 268 .

张敏霞 , 崔文杰 , 徐平 , 等 . 竖向荷载作用下挤扩支盘桩桩周土体位移场变化规律研究 [J ] . 岩石力学与工程学报 , 2017 , 36 ( S1 ): 3569 - 3577 .

ZHANG Minxia , CUI Wenjie , XU Ping , et al . Study on the variation law of soil displacement field around squeezed branch pile under vertical load [J ] . Chinese Journal of Rock Mechanics and Engineering , 2017 , 36 ( S1 ): 3569 - 3577 .

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