Analysis on the mechanics and deformation of side pile structure in metro station with the PBA method

Authors

  • Jianguo Gao Guangzhou Metro Construction Management Co. Ltd
  • Zhaofa Zeng Guangzhou Metro Construction Management Co. Ltd
  • Shuai Zhang Southwest Jiaotong University
  • Huijian Zhang Southwest Jiaotong University
  • Xuemin Zhou Southwest Jiaotong University

DOI:

https://doi.org/10.14311/CEJ.2024.01.0010

Keywords:

PBA method, side pile structure, mechanical properties, deformation law

Abstract

There are few researches on the interaction mechanism between the buckling load of the side pile top and the soil pressure behind pile (SPP) and the side pile structure. While the side pile structure is the key component of the lining structure of the metro with pile-beam-arch (PBA) method, which plays a very important role in the mechanical stability and deformation control of the lining system of station. Therefore, relying on the metro project about Guangzhou Metro Line 11, this paper investigates the influence law of mechanical characteristics and deformation of the side pile structure of the station with PBA method, taking into account the factors such as different buckling loads (including horizontal load of arch (HLA) and vertical load of arch (VLA)) and SPP, and puts forward corresponding construction suggestions. It is found that the lateral displacement and deformation of side pile structure are controlled by the HLA, and the optimal HLA is 1200kN. The influence of HLA on the bending moments about side pile are greater than that of the axial force. The VLA has more significant effect on vertical settlement of side pile, but little effect on lateral deformation about pile body. The SPP has significant impact on the stability of side pile structure, so it is recommended to take appropriate lining measures to ensure the stability of side pile structure when the SPP is too large.

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References

Gao, Y.Q., Xiang, Q.M., Su, J.X., et al, 2022. Strata subsidence characteristics of shield tunneling in coastal soft soil area. Stavební Obzor - Civil Engineering Journal, Vol. 31, 625-635. https://doi.org/10.14311/CEJ.2022.04.0047

Li, Y.F., Li, J.L., Zhao, J.H., et al, 2023. Research on a safety evaluation system for railway-tunnel structures by fuzzy comprehensive evaluation theory. Stavební Obzor - Civil Engineering Journal, Vol. 32, 122-136. https://doi.org/10.14311/CEJ.2023.01.0010

Wang, T., Luo, F.R., Liu, W.N., et al, 2012. Study of surface settlement and flexible joint pipeline deformation induced by metro station construction with PBA method. China Civil Engineering Journal, Vol. 45, 155-161. https://doi.org/10.15951/j.tmgcxb.2012.02.005

Liu, Y.S., Huang, Y.Y., 2023. The surface settlement law of precipitation in pile-beam-arch station adjacent to pile foundation. KSCE Journal of Civil Engineering, Vol. 27, 1441-1457. https://doi.org/10.1007/s12205-023-2192-4

Li, C.J., 2022. Research on adaptability of PBA improved construction method for underground station in loess area. Railway Standard Design, Vol. 66, 97-104. https://doi.org/10.13238/j.issn.1004-2954.202102190006

Yu, L., Zhang, D.L., Fang, Q., et al, 2019. Surface settlement of subway station construction using pile-beam-arch approach. Tunnelling and Underground Space Technology, Vol. 90, 340-356. https://doi.org/10.1016/j.tust.2019.05.016

Li, T., Li, Y., Yang, T.Y., et al, 2023. Influence of the large-span pile-beam-arch construction method on the surface deformation of a metro station in the silty clay-pebble composite stratum. Materials, Vol. 16, 2934. https://doi.org/10.3390/ma16072934

Wei, Y.L., Ma, H.L., 2023. Load-bearing deformation characteristics and application of reversed micro steel-pipe pile composite foundation. Journal of Anhui Jianzhu University, Vol. 31, 14-18. https://doi.org/10.11921/j.issn.2095-8382.20230203

Zhang, J.J., Sui, Q.Q., Guo, M., et al., 2023. Analysis and discussion of the load test of manually digging piles of Qingdao Jiaodong International Airport. Mechanics in Engineering, Vol. 45, 765-776. https://doi.org/10.6052/1000-0879-22-573

Guo, Y.C., Lv, C.Y., Hou, S.Q., et al, 2021. Experimental study on the pile-soil synergistic mechanism of composite foundation with rigid long and short piles. Mathematical Problems in Engineering, Vol. 2021, 6657116. https://doi.org/10.1155/2021/6657116

Fu, Q., Li, L., 2021. Vertical load transfer behavior of composite foundation and its responses to adjacent excavation: centrifuge model test. Geotechnical Testing Journal, Vol. 44, 191-204. https://doi.org/10.1520/GTJ20180237

Zhang, D.S., Zhang, X.L., Tang H.T., et al., 2023. Effects of soil arching on behavior of composite pile supporting foundation pit. Computational Particle Mechanics, Vol. 10, 645-662. https://doi.org/10.1007/s40571-022-00518-1

Jin, G.L., Wang, Y., Gu, K.Y., 2012. Influence of constructing hand-dug piles closing to retaining wall. Journal of Shanghai Jiaotong University, Vol. 46, 84-88. https://doi.org/10.16183/j.cnki.jsjtu.2012.01.018

Liang, R.Z., Wei, S., Wang, X.X., et al., 2022. Comparative test and analysis of the deformation in enclosure structure of internally-braced and cantilevered locked steel-pipe pile foundation pits. Modern Tunnelling Technology, Vol. 59, 172-182. https://doi.org/10.13807/j.cnki.mtt.2022.03.020

Chen, Z.Q., Guo, G., Guo, W.X., et al, 2017. Stress characteristics and application of micro steel anti-slide piles. Journal of Lanzhou University, Vol. 53, 43-47. https://doi.org/10.13885/j.issn.0455-2059.2017.01.006

Hazarika, H., Watanabe, N., Sugahara, H., et al, 2017. Influence of placement and configuration of small diameter steel pipe pile on slope reinforcement. 19th International Conference on Soil Mechanics and Geotechnical Engineering, Seoul, Korea.

Xiang, B., Zhang, L.M., Zhou, L.R., et al, 2015. Field lateral load tests on slope-stabilization grouted pipe pile groups. Journal of Geotechnical and Geoenvironmental Engineering, Vol. 141, 04014124. https://doi.org/10.1061/(ASCE)GT.1943-5606.0001220

Kaczmarek, Ł., Dobak, P., Szczepański, T., et al, 2021. Triaxial creep tests of glacitectonically disturbed stiff clay–structural, strength, and slope stability aspects. Open Geosciences, Vol. 13, 1118-1138. https://doi.org/10.1515/geo-2020-0291

He, T.F., 2021. Analysis on deformation of foundation pit retaining structure under the condition of CFG pile composite foundation. Subgrade Engineering, Vol. 218, 186-191. https://doi.org/10.13379/j.issn.1003-8825.20210 3046

An, G.F., Zhang, H.B., Liu, T.J., 2012. Numerical analysis of bearing characteristics of composite subgrade reinforced by chemical churning pile groups. Rock and Soil Mechanics, Vol. 33, 906-912. https://doi.org/10.16285/j.rsm.2012.03.049

Wang, Z., 2018. Research on reinforcement method of loess foundation under existing building. Xi’an University of Architecture and Technology, Master’s thesis, Xi’an.

Liu, S., Guo, P.P., Li, X., et al, 2023. Settlement behavior of composite foundation with deep mixed piles supporting highway subgrades in water-rich flood plains. Water, Vol. 15, 2048. https://doi.org/10.3390/w15112048

Benmebarek, M.A., Benmebarek, S., Rad, M.M., et al, 2022. Pile optimization in slope stabilization by 2D and 3D numerical analyses. International Journal of Geotechnical Engineering, Vol. 16, 211-224. https://doi.org/10.1080/19386362.2021.1972628

Chen, L.J., Jiang, C., Pang, L., et al, 2021. Lateral soil resistance of rigid pile in cohesionless soil on slope. Computers and Geotechnics, Vol. 135, 104163. https://doi.org/10.1016/j.compgeo.2021.104163

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Published

2024-04-30

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Articles

How to Cite

Analysis on the mechanics and deformation of side pile structure in metro station with the PBA method. (2024). Stavební Obzor - Civil Engineering Journal, 33(1), 127-152. https://doi.org/10.14311/CEJ.2024.01.0010