Numerical Simulation Study of Double-Line Shield through Cutting Group Piles

  • Ye Xiaowei ,
  • Gao Sijia ,
  • Liu Zhixiong ,
  • Song Yuejun ,
  • Lu Cirong
Expand
  • 1. School of Civil Engineering and Civil Engineering, Zhejiang University, Hangzhou 310058, P.R. China;
    2. Shaoxing Rail Transit Group Co., Ltd., Shaoxing, Zhejiang 312000, P.R. China

Received date: 2024-12-29

  Online published: 2025-10-17

Abstract

The case of direct cutting of obstacle piles by shield tunneling frequently appears in the project, and it is very important to study the construction impact of shield cutting piles to ensure the quality and safety of tunnels and existing structures. Relying on the Shaoxing Metro Line 2 crossing underground passage pile group project, the finite element numerical simulation method is used to analyze the influence of the double-line shield tunnel cutting pile group on the formation and existing structure, and the influence of MJS reinforcement range on the deformation of the existing structure is explored. The results show that: The lower residual pile floats up after the shield is cut, and the upper residual pile and the rest of the pile foundation have obvious settlement. The truncated pile foundation has obvious tensile stress, with a maximum tensile stress of 1.23MPa. The MJS reinforcement can reduce the channel settlement and the lateral deformation of the pile foundation caused by shield excavation. With the increase of MJS reinforcement range, the channel settlement decreases significantly. Among them, the channel settlement is reduced by more than 38% after the MJS reinforcement under the tunnel, and the channel settlement is reduced by more than 48% after the MJS reinforcement around the tunnel.

Cite this article

Ye Xiaowei , Gao Sijia , Liu Zhixiong , Song Yuejun , Lu Cirong . Numerical Simulation Study of Double-Line Shield through Cutting Group Piles[J]. Chinese Journal of Underground Space and Engineering, 2025 , 21(5) : 1720 -1728 . DOI: 10.20174/j.JUSE.2025.05.28

References

[1] Wang X, Yuan D. Research on the Interaction between the Pile and Shield Machine in the Process of Cutting a Reinforced Concrete Pile Foundation[J]. Applied Sciences, 2022, 13(1): 245.
[2] Simic-Silva P T, Martínez-Bacas B, Galindo-Aires R, et al. 3D simulation for tunnelling effects on existing piles[J]. Computers and Geotechnics, 2020, 124: 103625.
[3] Wang Y, Wang X, Xiong Y, et al. Full-Scale Laboratory Test of Cutting Large-Diameter Piles Directly by Shield Cutterhead[J]. Advances in Civil Engineering, 2022(1): 8780927.
[4] Xu Q, Zhu H, Ma X, et al. A case history of shield tunnel crossing through group pile foundation of a road bridge with pile underpinning technologies in Shanghai[J]. Tunnelling and Underground Space Technology, 2015, 45: 20-33.
[5] 王哲, 吴淑伟, 姚王晶,等. 盾构穿越既有桥梁桩基磨桩技术的研究[J]. 岩土工程学报, 2020, 42(1): 117-125. (Wang Zhe, Wu Shuwei, Yao Wangjing, et al. Grinding pile technology of shield tunnels crosssing pile foundation of existing bridges[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(1): 117-125. (in Chinese))
[6] 姜忻良, 赵志民, 李园. 天津地铁盾构施工对邻近工程设施影响的动态模拟[J]. 天津大学学报, 2006(2): 188-193. (Jiang Xinliang, Zhao Zhimin, Li Yuan. Dynamic simulation of the effects of shield tunneling in Tianjin subway project on neighboring job facilities[J]. Journal of Tianjin University, 2006(2): 188-193. (in Chinese))
[7] 王立新. 盾构超近距离穿越大型立交桩基群影响研究[J]. 地下空间与工程学报, 2016, 12(3): 761-768,838. (Wang Lixin. Research on the influences of shield closely passing through the pile foundations of large interchange[J]. Chinese Journal of Underground Space and Engineering, 2016, 12(3): 761-768,838. (in Chinese))
[8] Soomro M A, Ng C W W, Memon N A, et al. Lateral behaviour of a pile group due to side-by-side twin tunnelling in dry sand: 3D centrifuge tests and numerical modelling[J]. Computers and Geotechnics, 2018, 101: 48-64.
[9] 陈海丰, 袁大军, 王飞等. 盾构直接切削大直径桩基的掘削参数研究[J]. 土木工程学报, 2016, 49(10): 103-109,128. (Chen Haifeng, Yuan Dajun, Wang Fei, et al. Study on shield cutting parameters when cutting big diameter piles[J]. China Civil Engineering Journal, 2016, 49(10): 103-109,128. (in Chinese))
[10] 杜欣, 黄雪梅, 郝岩, 等. 盾构切削混凝土桥桩刀盘荷载分析[J]. 地下空间与工程学报, 2021, 17(6): 1742-1750. (Du Xin, Huang Xuemei, Hao Yan, et al. Analysis on cutterhead load in shield cutting concrete bridge pile[J]. Chinese Journal of Underground Space and Engineering, 2021, 17(6): 1742-1750. (in Chinese))
[11] Xu P, Zuo S. Study on the JH-2 Model Parameters for Metro Shield Cutting Reinforced Concrete Pile[J]. Geotechnical and Geological Engineering, 2021, 39(7): 5267-5278.
[12] 吴东亮. 复杂地质条件下盾构切削建筑物桩基群影响分析[J]. 城市轨道交通研究, 2021, 24(5): 121-126. (Wu Dongliang. Analysis of influence of shield tunnel cutting building pile foundation groups under complicated geological conditions[J]. Urban Mass Transit, 2021, 24(5): 121-126. (in Chinese))
[13] 王飞, 袁大军, 董朝文,等. 盾构直接切削大直径群桩的刀具配置研究[J]. 土木工程学报, 2013, 46 (12) : 127-135. (Wang Fei, Yuan Dajun, Dong Chaowen, et al. Study on cutter configuration for directly shield cutting of large-diameter piles[J]. China Civil Engineering Journal, 2013, 46(12): 127-135. (in Chinese))
[14] 王飞, 袁大军, 董朝文,等. 盾构直接切削大直径钢筋混凝土桩基试验研究[J]. 岩石力学与工程学报, 2013, 32(12) : 2566-2574. (Wang Fei, Yuan Dajun, Dong Chaowen, et al. Test study of shield cutting large-diameter reinforced concrete piles directly[J]. Chinese Journal of Rock Mechanics and Engineering, 2013, 32(12): 2566-2574. (in Chinese))
[15] 袁大军, 王飞, 董朝文,等. 盾构切削大直径钢筋混凝土桩基新型刀具研究[J]. 中国公路学报, 2016, 29 (3) : 89-97. (Yuan Dajun, Wang Fei, Dong Chaowen, et al. Study on new-style cutter for shield cutting large-diameter reinforced reinforced concrete pile[J]. China Journal of Highway and Transport, 2016, 29 (3) : 89-97. (in Chinese))
[16] 唐仁, 林本海, 梁鹏. 盾构下穿住宅楼直接切桩的安全性研究[J]. 地下空间与工程学报, 2019, 15(增2): 878-883. (Tang Ren, Lin Benhai, Liang Peng. Study on the safety of shield passing through the residential building and directly cutting pile foundation[J]. Chinese Journal of Underground Space and Engineering, 2019, 15(Supp.2): 878-883. (in Chinese))
[17] Zheng Y, Hu Z, Ren X, et al. Effects of Partial Supporting Pile Removal from Deep Foundation Pits by Shallow Excavation Method in Loess Areas[J]. Advances in Materials Science and Engineering,2021(1): 9934113..
[18] 高洪梅, 蔡鑫涛, 张正等. 盾构下穿桥梁桩基的截桩效应[J]. 地下空间与工程学报, 2022, 18(6): 2044-2051. (Gao Hongmei, Cai Xintao, Zhang Zheng, et al. Pile Cutting effect of shield underpass bridge pile foundation[J]. Chinese Journal of Underground Space and Engineering, 2022, 18(6): 2044-2051. (in Chinese))
[19] Li T, Liu B, Han Y H, et al. Structural analysis of shield machine cutting monopile using p-y curve based finite element method[J]. Computers and Geotechnics,2023, 161: 105605.
[20] 李景茂, 王旭, 王博林, 等. 盾构切削桩引起的桩基承载特性变化及可行性研究[J]. 中国安全生产科学技术, 2021, 17(5): 26-32. (Li Jingmao, Wang Xu, Wang Boling, et al. Research on change of pile foundation bearing characteristics caused by shield cutting piles and its feasibility[J]. Journal of Safety Science and Technology, 2021, 17(5): 26-32. (in Chinese))
[21] Wang N, Jiang Y, Geng D, et al. Numerical Investigation of the Combined Influence of Shield Tunneling and Pile Cutting on Underpinning Piles[J]. Frontiers in Earth Science, 2022, 10: 896634.
[22] Shi J, Wang F, Zhang D, Huang H. Refined 3D modelling of spatial-temporal distribution of excess pore water pressure induced by large diameter slurry shield tunneling[J]. Computers and Geotechnics. 2021, 137: 104312.
[23] 张云, 殷宗泽, 徐永福. 盾构法隧道引起的地表变形分析[J]. 岩石力学与工程学报, 2002(3): 388-392. (Zhang Yun, Ying Zongze, Xu Yongfu. Analysis on three-dimensional ground surface deformations due to shield tunnel[J]. Chinese Journal of Rock Mechanics and Engineering, 2002(3): 388-392. (in Chinese))
Outlines

/