Experimental Study on Waterproofing of Pipe Jacking Shaft and Pipe Joint in Metro Station

Abstract:

Through the indoor waterproof test, the water pressure resistance performance of the waterproof system formed by setting embedded grouting pipe in the middle of double water swelling sealants was studied to ensure that the station pipe joint could meet the operation requirements. The results show that there must be enough distance between the outside sealant and the edge of the pouring concrete, otherwise the new and old concretes cannot be poured tightly; after swelling, the water pressure resistance of sealants is improved in the range of 0-0.55 MPa, with individual differences; the two kinds of slurries have obvious influence on the improvement of water pressure resistance, but the improvement effect of waterborne epoxy slurry is better than that of polyurethane slurry.

• Periodical: Advanced Engineering Forum (Volume 48)
• Pages: 1-15
• DOI: https://doi.org/10.4028/p-73d553
• Online since: January 2023
• Authors: Zhi Qiang Wang*, Zhen Yu Lei
• Keywords: Pipe Joint, Water Pressure Resistance, Water Swelling Sealant, Waterproofing

References

[1] B. Shao, Long distance pipe jacking construction technology in municipal water supply and drainage construction, New Technology and New Products of China (4) (2019) 111-112.

DOI: 10.47939/et.v2i2.69

[2] H. Xiong, Analysis of pipe jacking construction technology in key technologies of municipal engineering construction, Scientific and Technological Innovation (2) (2019) 125-126.

[3] H.B. Liu, Exploration of constructing subway station in shanghai by buried-tunneling method, Journal of Technology 18(2) (2018) 152-158.

[4] X.P. Hu, Study on segment joint structure of concrete pipe jacking tunnel with large rectangular section, Railway Engineering 57(8) (2017) 65-68.

[5] F. Chen, Y. Zhang, M. Zhu, Application of 9.8 m × 5.5 m large section rectangular pipe jacking in the design of subway crossing passage, China High-Tech (20) (2018) 34-36.

[6] H. Zhu, Structural design and research of exit passage by rectangular pipe-jacking construction for underground subway station, Tunnel and Rail Transit (1) (2010) 1-4, 52.

[7] L.J. Lin, Z.Z. Chen, X.X. Chen, Research on the structural leakage and the preventing and harnessing of the high voltage cable tunnels constructed by pipe jacking method, Construction Technology 45(S2) (2016) 144-148.

[8] Z. Wang, L. Su, Application of pipe joint water stop device in long distance curve river crossing concrete pipe jacking project, Architectural Engineering Technology and Design (18) (2017) 3390-3391.

[9] G.W.E. Milligan, P. Norris, Site-based research in pipe jacking-objectives, procedures and a case history, Tunnelling and Underground Space Technology 11(S1) (1996) 3-24.

DOI: 10.1016/0886-7798(95)00041-0

[10] L. Zhen, J.J. Chen, P.Z. Qiao, J.H. Wang, Analysis and remedial treatment of a steel pipe-jacking accident in complex underground environment, Engineering Structures 59(1) (2014) 210-219.

DOI: 10.1016/j.engstruct.2013.10.025

[11] M. Cheng, Y.J. Lu, Developing a risk assessment method for complex pipe jacking construction projects, Automation in Construction 58(10) (2015) 48-59.

DOI: 10.1016/j.autcon.2015.07.011

[12] M. Karakouzian, M. Karami, M. Nazari-Sharabian, S. Ahmad, Flow-induced stresses and displacements in jointed concrete pipes installed by pipe jacking method, Fluids 4(1) (2019) 34.

DOI: 10.3390/fluids4010034