Application of Pipe-roofing Method with Various Section Types in Metro Construction of Guiqiao Road Station at Saturated Soft Soil Area

ZHU Yanfei1 GUO Yan1 PAN Weiqiang1 ZHAO Xiaopeng1

(1.Shanghai Tunnel Engineering Construction Co., Ltd., Shanghai, China 200032)

【Abstract】Engineers have carried out researches on how to develop and utilize underground space better and proposed the pipe roofing method with various section types. As a new underground excavation method, this method is used widely owing to its less influence on surrounding environment and controllable ground subsidence. Nevertheless, due to the high water content, high compressibility and weak self-stabilizing ability of saturated soft soil, there are few engineering cases using the pipe-roofing method in the above areas. Consequently, based on the project of Guiqiao Road station of Shanghai metro line 14, and in consideration of the characteristics of saturated soft soil, the technologies of the pipe-roofing method including pipe jacking, soil reinforcement and layered excavation inside the pipe-roof are researched. The results show that the key technologies mentioned above can ensure the sealing and connection of the pipe lock, improve the strength of the excavated soil and reduce the influence of construction on the surrounding environment.

【Keywords】 free section; pipe-roofing method; underground structure; saturated soft soil; pipe jacking; soil reinforcement; layered soil excavation;


【Funds】 Scientific Research Project of Science & Technology Commision Shanghai Municipality (17DZ1203800)

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    [1] ZHANG Peng. Research on key construction techniques and theory of super large curved pipe jacking roof in Gongbei Tunnel [D]. Wuhan: China University of Geosciences, 2018.

    [2] LI Yaoliang, ZHANG Yunhai, LI Weiqiang. Research and application of pipe roofing method in soft soil [J]. Chinese Journal of Underground Space and Engineering, 2011, 7(5): 962.

    [3] LIU Yang, SHI Peixin, PAN Jianli, et al. Analysis of transverse ground settlement and pipe interaction of super-large pipe roofing in Gongbei Tunnel [J]. Tunnel Construction, 2018, 38(10): 1680.

    [4] SU Rongjun, CHEN Lisheng. Settlement analysis of steel pipe roof jacking in ultra-shallow covered soft ground [J]. Tunnel Construction, 2018, 38(7): 1236.

    [5] LIU Yingling. Control and monitoring of ground deformation during jacking of a large-diameter curved tabular roof [J]. Modern Tunnelling Technology, 2017, 54(6): 210.

    [6] XIONG Xueyu, GAO Xinyu, WANG Shousheng, et al. Study on technology and design method of prestressed concrete roof [J]. Building Structure, 2018, 48(8): 91.

    [7] YU Caicheng. Study on the theory and construction technology of large diameter long distance pipe roof [D]. Suzhou: Soochow University, 2017.

    [8] ZHU Hehua, YAN Zhiguo, LI Xiangyang, et al. Analysis of construction risks for pipe-roofing tunnel in saturated soft soil [J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(S2): 5549.

    [9] XIAN Jiaju. Research of surface deformation induced by pipe-roof group driven in close proximity [D]. Guangzhou: Guangdong University of Technology, 2016.

    [10] COLLER, PHILIP J, ABBOTT, et al. Micro tunneling techniques to form an in situ barrier around existing structures [C ]//High Level Radioactive Waste Management-Proceedings of the Annual International Conference. LasVegas: NV, 1994: 386.

    [11] RHODES G W, KAUSCHINGER J L. Microtunneling provides structural support for large tunnels with shallow cover [C] / / North American Tunneling. Rotterdam: Balkema A A, 1996: 443.

    [12] ABBOTT D G. High-profile tunneling [J]. Civil Engineering-ASCE, 2014, 73: 46.

    [13] LIAO H J, CHENG M. Construction of a pipe roofed underpass below groundwater table [C]//Proceedings of the Institution of Civil Engineers. [S.l.]: Geotechnical Engineering, 1996: 202.

    [14] ZHANG Peng, MA Baosong, ZENG Cong, et al. Numerical model for jacking force based on pipe-soil contact characteristics [J]. Chinese Journal of Geotechnical Engineering, 2017, 39(2): 244.

    [15] WEI Gang, XU Riqing, HUANG Bin. Analysis of stability failure for pipeline during long distance pipe jacking [J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(8): 1427.

    [16] JING Lu, YUAN Juyun, YUAN Yong. Ground loss parameter and soil deformation in pipe jacking [J]. Rock and Soil Mechanics, 2013, 34(S1): 177.

    [17] HE Shuang, HU Xiangdong. Shear test of steel pipe-frozen soil interface in freeze-sealing pipe roof method [J]. Tunnel Construction, 2019, 39(11): 1864.

    [18] NIU Jie. Application of micro-disturbance propulsion construction technology for large cross-section box culvert [J]. Tunnel Construction, 2019, 39(11): 1906.

This Article


CN: 44-1745/U

Vol 40, No. 04, Pages 552-561

April 2020


Article Outline


  • 0 Introduction
  • 1 Project overview
  • 2 Jacking technology of steel pipe
  • 3 Soil reinforcement technology applied in saturated soft soil area
  • 4 Technology of soil stratified excavation inside the pipe-roof
  • 5 Conclusions and discussion
  • References