理论与试验研究

束浆挤扩桩的扰动试验机理与抗拔承载力研究

  • 王长虹 ,
  • 胡子轩 ,
  • 蔡德雍 ,
  • 杨天笑
展开
  • 上海大学 力学与工程科学学院土木工程系,上海 200444
王长虹(1978—),男,湖南衡山人,博士,教授、博士生导师,主要从事随机岩土力学—贝叶斯方法研究。E-mail:ch_wang@shu.edu.cn

收稿日期: 2025-11-12

  网络出版日期: 2026-09-07

基金资助

上海市社会发展科技攻关项目(21DZ1204300); Shanghai Social Development Science and Technology Research Project (21DZ1204300)

Study on the Disturbance Test Mechanism and Uplift Bearing Capacity of Constrained Grouting-expansion Piles

  • Wang Changhong ,
  • Hu Zixuan ,
  • Cai Deyong ,
  • Yang Tianxiao
Expand
  • Department of Civil Engineering, School of Mechanics and Engineering Sciences, Shanghai University, Shanghai 200444, P.R. China

Received date: 2025-11-12

  Online published: 2026-09-07

摘要

钢管桩的抗拔承载力稳定且施工速度快,但在高地下水位的黏性土中,侧阻力和端阻力存在不足。因此,结合预钻孔和膜袋注浆技术,开发了新型的束浆挤扩钢管桩。以上海黏性土为研究对象,通过室内缩尺模型试验,研究不同施工工艺对束浆挤扩桩抗拔性能的扰动效应。采用简化计算方法,计算束浆挤扩钢管桩的极限抗拔承载力,并在现场试验中验证其有效性和适用性。结果表明:室内缩尺模拟试验揭示了钻孔开挖对束浆挤扩桩抗拔性能的影响,钻孔开挖将减弱地基土的侧阻力,影响桩—土界面的力学性能。基于Rankine土压力理论,修正了束浆挤扩钢管桩的抗拔承载力简化计算方法,研究成果可为新型桩基础工程应用提供理论支撑。

本文引用格式

王长虹 , 胡子轩 , 蔡德雍 , 杨天笑 . 束浆挤扩桩的扰动试验机理与抗拔承载力研究[J]. 地下空间与工程学报, 2026 , 22(4) : 1281 -1295 . DOI: 10.20174/j.JUSE.2026.04.17

Abstract

Steel pipe piles have stable uplift bearing capacity and quick construction speed, but their lateral resistance and tip resistance are insufficient in clayey soil with a high groundwater table. Hence, by combining pre-drilling and bag-type grouting technology, the Steel Pipe Pile with Constrained Grouting (SPPCG) was designed. Taking the clayey soil in Shanghai as the research objective, the laboratory scaled model test was conducted to study the disturbance influence of different construction techniques on the uplift resistance performance of the SPPCG. A simplified calculation method was proposed to calculate the ultimate uplift bearing capacity of the SPPCG, and its effectiveness and applicability were verified in the field test. The results show that the in-situ scaled model test reveals the influence of drilling excavation on the uplift resistance performance, and drilling excavation weakens the lateral resistance of the soil and affects the mechanics performance of the pile-soil interface. Based on Rankine's theory, a simplified calculation method for the uplift bearing capacity of the SPPCG was modified, providing a precise and simple preliminary estimation tool for engineering design.

参考文献

[1] 王卫东, 吴江斌, 许亮, 等. 软土地区扩底抗拔桩承载特性试验研究[J]. 岩土工程学报, 2007, 27(9): 1418-1422. (Wang Weidong, Wu Jiangbin, Xu Liang, et al. Full-scale field tests on uplift behavior of piles with enlarged base[J]. Chinese Journal of Geotechnical Engineering, 2007, 27(9): 1418-1422. (in Chinese))
[2] 胡玉银, 包联进, 陈建兰, 等. 注浆挤扩钻孔灌注桩在深圳世茂中心地下室抗浮中的应用[J].建筑结构, 2023, 53(增1): 2583-2587. (Hu Yuyin, Bao Lianjin, Chen Jianlan, et al. Application of bored pile with extrusion and enlargement by slip casting in the anti-floatingof basement of Shenzhen Shimao Center[J].Building Structure, 2023, 53(Supp.1): 2583-2587. (in Chinese))
[3] 王长虹, 杨天笑, 马铖涛, 等. 束浆挤扩钢管桩竖向抗拔承载力计算方法[J]. 岩土力学, 2024, 45(3): 846-856. (Wang Changhong, Yang Tianxiao, Ma Chengtao, et al. Calculation of uplift capacity ofsteel pipe pile with constrained grouting[J]. Rock and Soil Mechanics, 2024, 45(3): 846-856. (in Chinese))
[4] 陈立宏, 刘丽, 张志鹏. 旋挖挤扩灌注桩抗拔机理模型试验[J]. 岩土工程学报, 2020,42(增1): 90-94. (Chen Lihong, Liu Li, Zhang Zhipeng. Model tests on the uplift mechanism of rotary drilling grouting-expanded piles[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(Supp.1): 90-94. (in Chinese))
[5] Vesic A S. Tests on instrumentedpiles,ogeechee river site[J]. Soil Mechanics and Foundation Division Journal, 1970, 96(2): 561-584.
[6] 张楷, 王树峰, 崔强, 等. 注浆作用对微型钢管桩抗压承载性能影响的试验研究[J]. 地下空间与工程学报, 2022, 18(1): 201-207. (Zhang Kai, Wang Shufeng, Cui Qiang, et al. Experimental study on the influence of grouting on the compressive bearing of micro steel pipe pile[J]. Chinese Journal of Underground Space and Engineering, 2022, 18(1): 201-207. (in Chinese))
[7] Zuo S, Zhang Q Y, Li J, et al. Study of bag grouting pile reinforcing deep soft-soil foundation with an interlayer of hard materials on high-speed railway ballast track[J]. Applied Sciences-Basel, 2022, 12(12): 1-18.
[8] 张德华, 王梦恕, 王磊, 等. 一种新型多节旋挖挤扩桩荷载传递机理现场试验研究及在铁路桥基的首次工程应用[J]. 土木工程学报, 2013, 46(7): 66-73. (Zhang Dehua, Wang Mengshu, Wang Lei, et al. Field experimental study on the load transfer mechanism of a new type of multi-section rotary drilling grouting-expanded pile and its first engineering application in railway bridge foundations[J]. Journal of Civil Engineering, 2013, 46(7): 66-73. (in Chinese))
[9] 程红梅. 布袋注浆桩地基加固扰动影响试验研究[J]. 铁道工程学报, 2023, 40(4): 12-17. (Cheng Hongmei. Experimental research on the foundation reinforcement disturbance influence of the bag grouting pile[J]. Journal of Railway Engineering Society, 2023, 40(4): 12-17. (in Chinese))
[10] Lin C Y, Wang R Y, Huang M S, et al. Study on disturbance mechanism of squeezed and non-squeezed soil piles on soft soil foundation[J]. Applied Sciences-Basel, 2023, 13(13): 1-25.
[11] 杨明辉, 李军, 赵明华. 考虑侧阻增强效应的基桩极限承载力解析算法[J]. 铁道科学与工程学报, 2015, 12(5): 1032-1038. (Yang Minghui, Li Jun, Zhao Minghua. Analytical method of ultimate bearing capacity of pile considering enhancement effect in lateral resistance[J]. Journal of Railway Science and Engineering, 2015, 12(5): 1032-1038. (in Chinese))
[12] Seed H B, Reese L C. The action of soft clay along friction piles[J]. Transactions of the American Society of Civil Engineers, 1957, 122(1): 731-754.
[13] Suryasentana S K, Lehane B M. Numerical derivation of cpt-based p-y curves for piles in sand[J]. Géotechnique, 2015, 64(3): 186-194.
[14] Li C, Zou J F, Li L. A novel approach for predicting lateral displacement caused by pile installation[J]. Geomechanics and Engineering, 2020, 20(2): 147-154.
[15] 林海, 雷国辉, 徐林, 等. 水平受荷桩1g模型试验变形特性的相似分析[J]. 中南大学学报(自然科学版), 2012, 43(9): 3639-3645. (Lin Hai, Lei Guohui, Xu Lin, et al. Similarity analysis of deflection behavior of laterally loaded piles in 1g model tests[J]. Journal of Central South University (Science and Technology), 2012, 43(9): 3639-3645. (in Chinese))
[16] 罗汀, 姚仰平, 侯伟. 土的本构关系[M]. 北京: 人民交通出版社, 2010. (Luo Ting, Yao Yangping, Hou Wei. Soil constitutive models[M]. Beijing: China Communications Press, 2010. (in Chinese))
[17] Zhou H, Wang Z L, Liu H L. Ultimate lateral pressure of circular pile in undrained clay considering the strength reduction induced by pile installation[J]. International Journal of Geomechanics, 2022, 22(4): 1-11.
[18] Zhao C F, Zhang J Q, Zhao C, et al. Cavity reverse expansion considering elastoplastic unloading and application in cast-in-situ bored piles[J]. Soils and Foundations, 2023, 63(4): 1-15.
[19] Feng R F, Zhang Q Q, Liu S W. Experimental study of the effect of excavation on existing loaded piles[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2020, 146(9): 1-17.
[20] 丁康峻. 基于早龄期混凝土弹性模量时变规律的连续刚构桥线形预测方法研究[D]. 西安: 西安建筑科技大学, 2024. (Ding Kangjun. Study on the prediction method of continuous rigid-frame bridge alignment based on the time-dependent law of elastic modulus of early-age concrete[D]. Xi'an: Xi'an University of Architecture and Technology, 2024. (in Chinese))
[21] Chen Y D, Deng A, Lu F, et al. Failure mechanism and bearing capacity of vertically loaded pile with partially-screwed shaft: Experiment and simulations[J]. Computers and Geotechnics, 2020, 118(1): 1-13.
[22] Peng Y, Yin Z Y. Micromechanical analysis of suction pile-granular soil interaction under inclined pulling load: Effect of pulling angle[J]. Ocean Engineering, 2023, 270(11): 1-17.
[23] 于庆博, 王清, 李兴华, 等. 土结构性的动态特征与概念表达[J]. 工程地质学报, 2022, 30(6): 1914-1928. (Yu Qingbo, Wang Qing, Li Xinghua, et al. Dynamic characteristics and concept expression of soil structure[J]. Journal of Engineering Geology, 2022, 30(6): 1914-1928. (in Chinese))
[24] Butterfield R. A natural compression law for soils [J]. Géotechnique, 1979, 29(4): 469-480.
[25] Hong Z S, Onitsuka K.A method of correcting yield stress and compression index ofariake clays for sample disturbance[J]. Soils and Foundations, 1998, 38(2): 211-222.
[26] 徐书平, 刘祖德, 凡红, 等. 考虑扰动的饱和软黏土圆柱孔扩张弹塑性解[J]. 岩土力学, 2007, 28(7): 1505-1510. (Xu Shuping, Liu Zude, Fan Hong, et al. Elastoplastic solution of cylindrical expansion considering disturbed saturated soft clay[J]. Rock and Soil Mechanics, 2007, 28(7): 1505-1510. (in Chinese))
[27] 刘维正, 石名磊, 徐林荣. 考虑软黏土结构性损伤的圆柱孔扩张弹塑性分析[J]. 岩土工程学报, 2013, 35(3): 487-494. (Liu Weizheng, Shi Minglei, Xu Linrong. Elastoplastic analysis of cylindrical cavity expansion in natural sedimentarysoft clay with structure damage[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(3): 487-494. (in Chinese))
[28] 胡玉银, 孔德志, 阳吉宝, 等. 注浆成型扩底钻孔灌注桩的施工方法及其挤扩装置[P]. 中国: CN102605773B, 2024-08-13. (Hu Yuyin, Kong Dezhi, Yang Jibao, et al. The construction method of grouting-formed expanded base bored pile and its soil displacement device[P]. China: CN102605773B, 2024-08-13. (in Chinese))
[29] 罗永成, 吴克威, 章志伟. 注浆挤扩灌注桩在工程应用中的关键施工技术[J]. 建筑施工, 2021, 43(2): 179-181. (Luo Yongcheng, Wu Kewei, Zhang Zhiwei. Key construction technology of grouting and expanding cast-in-place pile in engineering application[J]. Building Construction, 2021, 43(2): 179-181. (in Chinese))
[30] 庞超明, 黄弘. 试验方案优化设计与数据分析[M]. 南京: 东南大学出版社, 2018. (Pang Chaoming, Huang Hong. Optimal design of testing scheme and data analysis[M]. Nanjing: Southeast University Press, 2018. (in Chinese))
[31] 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(JGJ106-2014)[S]. 北京: 中国建筑工业出版社, 2014. (Ministry of Housing and Urban-Rural Development. Technical code for testing of building foundation piles(JGJ106-2014)[S]. Beijing: China Architecture & Building Press, 2014. (in Chinese))
文章导航

/

〈 〉