Analysis of the influence of side wall opening on the arch structure of metro station using the PBA method


  • Yongxing Dai Guangzhou Metro Design & Research Institute Co., Ltd
  • Xingkai Pei Guangzhou Metro Design & Research Institute Co., Ltd
  • Zekun Chen Southwest Jiaotong University
  • Bolun Shi Guangzhou Metro Design & Research Institute Co., Ltd
  • Huijian Zhang Southwest Jiaotong University
  • Yujie Yang Southwest Jiaotong University
  • Wei Chen Southwest Jiaotong University



PBA method, side wall openings, differential settlement, safety factor, numerical calculation


In order to meet the traffic and commercial needs, it is sometimes necessary to open the side wall of the metro station, while the current research on the mechanical properties and safety of the arch caused by the opening of the side wall of the station by pile-beam-arch (PBA) method is rarely involved. In this paper, based on the Tianhe East Station project of Guangzhou Metro Line 11 located in soft-hard uneven stratum using PBA method, the settlement law and mechanical characteristics of the arch under different side wall opening conditions is analyzed, and the influence of opening construction and opening span on the safety of arch is also further studied. The results show that the settlement caused by the opening of the side wall is mainly concentrated in the upper part of the opening area, and gradually expands around the opening area with the increase of opening span, and the maximum settlement occurs in the middle part of the arch. Opening leads to the differential settlement at both ends of the arch. With the increase in opening span, the settlement growth trend of the right side of the arch is greater than that of the left side. The opening of the side wall leads to the increase of the safety factor of the arch body and the decrease of the safety factor of the right arch foot, while the change of the safety factor of the left arch foot is not obvious, and the safety factor meets the specification requirements.


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Yang, X., Liu, Y., 2017. Monitoring and controlling on surface settlement in sand and gravel strata caused by subway station construction applying pipe-roof pre-construction method (PPM). Stavební Obzor - Civil Engineering Journal, Vol. 26, 179-188.


Guo, Y., Zhu, Y.F., Pan, W.Q., et al, 2023. Research and application of u-bit construction method in subway station engineering located in saturated soft soil area. Stavební obzor-Civil Engineering Journal, Vol. 32, 108-121.

Huang, P., Wei, L.W., Zhang, X.F., 2021. Study on reinforcement of large arch foot of mined and overlapped metro transfer stations. Modern Tunnelling Technology, Vol. 58, 137-147.

Lin, D., Broere, W., Cui, J.Q., 2022. Underground space utilisation and new town development: Experiences, lessons and implications. Tunnelling and Underground Space Technology, Vol. 119, 104204.

Guo, X.Y., Wang, Z.Z., Geng, P., et al, 2021. Ground surface settlement response to subway station construction activities using pile-beam-arch method. Tunnelling and Underground Space Technology, Vol. 108, 103729.

Guo, X.P., Jiang, A.N., Wang, S.Y., 2021. Study on the applicability of an improved pile-beam-arch method of subway station construction in the upper-soft and lower-hard stratum. Advances in Civil Engineering, Vol. 2021, 6615016.

Yang, Z.X., Yao, A.J., Zhang, D., et al, 2020. Study on settlement control of tunnel closely passing through existing metro station. Chinese Journal of Underground Space and Engineering, Vol. 16, 442-449.

Zhao, J.T., Niu, X.K., Su, J., et al, 2018. Optimization of the construction scheme for a PBA metro station adjacent to an existing metro tunnel. Modern Tunnelling Technology, Vol. 55, 176-185. 10.13807/j.cnki.mtt.2018.03.024

Liu, Q.W., Wang, M.S., Hu, S.M., 2013. Control measures for surrounding rock displacement induced by metro station construction with PBA method. China Railway Science, Vol. 34, 61-65. 3969/j.issn.1001-4632.2013.06.10

Huang, S.G., Fu, Z., Liu, J., 2018. Study of soil deformation caused by construction with PBA method. Journal of Railway Engineering Society, Vol. 35, 11-16.

Zhang, J. L., Liu, X., Ren, T. Y., Yuan, Y., Mang, H. A., 2019. Structural behavior of reinforced concrete segments of tunnel linings strengthened by a steel-concrete composite. Composites Part B: Engineering, Vol. 178, 107444.

Zhang, J. L., Liu, X., Ren, T. Y., Shi, Y. M., Yuan, Y., 2022. Numerical analysis of tunnel segments strengthened by steel–concrete composites. Underground Space, Vol. 7, 1115-1124.

Liu, X., Jiang, Z.J, Mang, H. A., 2023. Experimental investigation of the influence of the timing of strengthening on the structural behavior of segmental tunnel linings. Engineering Structures, Vol. 274, 115070.

Liu, X., Gao, Y.M., Zhang, J.L., Zhu, Y.H., 2020. Structural response of main tunnel linings during construction of connecting aisle by means of mechanized drilling. Chinese Journal of Geotechnical Engineering, Vol. 42, 951-960.

Zhang, C.T., 2014. Mechanical analysis of existing structure removal for transfer station construction. Municipal Engineering Technology, Vol. 32, 90-92.

Du, Z.T., Guo, H.B., 2020. Analysis of side wall reconstruction at existing subway station. Construction Technology, Vol. 49, 109-113. 7672/sgjs2020130109

Xu, B., 2015. On flank punch of existing subway stations. Chinese and Overseas Architecture, Vol. 166, 121-123.

Yuan, C.Y., 2019. Safety analysis of side wall opening at existing subway station. Municipal Engineering Technology, Vol. 37, 106-109.

Wang, B., 2023. Side wall opening reconstruction design of existing metro station. Urban Mass Transit, Vol. 26, 78-81.

Hu, Z.N., Mao, H.T., Zhang, L.X., et al, 2023. Experimental tests and theoretical analysis for mechanical behaviors of side wall opening construction in mined excavation subway station. Frontiers in Earth Science, Vol. 11, 1127078.

An, D.H., Shao, W., 2020. Analysis on the effect of the expansion and reconstruction of the metro station on the stress of original structures. Railway Standard Design, Vol. 64, 129-135.

Li, C.J., Wang, L.X., Hu, R.Q., et al, 2019. Study on mechanical behavior of transfer and reconstruction of metro stations in loess area. Railway Standard Design, Vol. 63, 101-109. j.issn.1004-2954.201811110004

Wang, Q.S., 2021. Transfer reconstruction technology of existing subway station during operation. Railway Construction Technology, Vol. 340, 116-120. 07.025

An, D.H., Shao, W., 2020. Analysis on the effect of the expansion and reconstruction of the metro station on the stress of original structures. Railway Standard Design, Vol. 64, 129-135.

Guo, R., Zheng, B., Li C., 2019. Settlement law and its influence range of tunnel crossing underneath loose high filling embankment. Tunnel Construction, Vol. 39, 601-608. 096-4498.2019.04.010