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Investigation into the Performance of a Covered Top-Down Pit-in-Pit Deep Excavation in Shenzhen Soil-Rock Mixed Strata

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Abstract

An oversized pit-in-pit (PIP) excavation, which comprised an octagonal pit outside and two cross-shaped pits inside, was excavated in soil-rock mixed strata, Shenzhen, China. There were two shield tunnels connected to the north and south of the PIP excavation after the main structures completed. Extensive instruments were adopted throughout the construction process to guarantee the safety of the project. Based on the massive field data, the performance of the ground settlement, retaining structures and adjacent building deflection were investigated. Field data indicate that the influence zone of ground settlement in depth was above the stiff clay layer. The maximum lateral displacement (δhm) of the retaining structures occurred at 0.4 He (He is the excavation depth), and δhm decreased when the excavation depth was over 0.5 He. The maximum ground settlement δvm occurred at 0.2 He which gradually decreased with d (d is the distance from the monitoring point to the excavation edge). This large discrepancy of the ground settlement induced 3.13‰ tilting of the adjacent buildings. The ground settlement influence zone was 1.7 He away from the pit edge (d ≤ 1.7 He). A half-3D numerical model was established to investigate the influence of different excavation sequences. The results show that the maximum principal stress (σm) of the cover plate increased to peak value due to the excavation of subsoil, which indicated that the sidewall construction and subsoil excavation should be carried out simultaneously to reduce the stress concentration of the cover plate. TD excavation can effectively minimize the ground and building settlement, while the excavation may induce uneven displacement of the interior supporting columns. Push in failure of the sidewalls may occur during the construction which was the combined result of unloading and increase in the excavation depth.

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References

  1. Song, Z.P.; Mao, J.C.; Tian, X.X.; Zhang, Y.W.; Wang, J.B.: Optimization analysis of controlled blasting for passing through houses at close range in super-large section tunnels. Shock Vib. 2019(4), 1–16 (2019)

    Google Scholar 

  2. Finno, R.J.; Bryson, L.S.: Response of building adjacent to stiff excavation support system in soft clay. J. Perform. Constr. Facil. 1(10), 10–20 (2002)

    Article  Google Scholar 

  3. Finno, R.J.; Arboleda-Monsalve, L.G.; Sarabia, F.: Observed performance of the one museum park west excavation. J. Geotech. Geoenviron. Eng. ASCE 04014078 (2014)

  4. Laefer, D.; Ceribasi, F.S.; Long, J.H.; Cording, E.J.: Predicting R.C. frame response to excavation-induced settlement. J. Geotech. Geoenviron. Eng. 135(11), 1605–1619 (2009)

    Article  Google Scholar 

  5. Liu, G.B.; Huang, P.; Shi, J.W.; Ng, W.: Performance of a deep excavation and its effect on adjacent tunnels in Shanghai soft clay. Am. Soc. Civil Eng. J. Perform. Constr. Facil. 30(6), 04016041 (2016)

  6. Tan, Y.; Huang, R.; Kang, Z.; Wei, B.: Covered semi-top-down excavation of subway station surrounded by closely spaced buildings in downtown Shanghai: building response. J. Perform. Constr. Facil. 04016040 (2016)

  7. Long, M.: Database for retaining wall and ground movements due to deep excavations. J. Geotech. Geoenviron. Eng. 3(203), 203–224 (2001)

    Article  Google Scholar 

  8. Zahmatkesh, A.; Choobbasti, A.J.: Evaluation of wall deflections and ground surface settlements in deep excavations. Arab. J. Geosci. 8(5), 3055–3063 (2015)

    Article  Google Scholar 

  9. Boscardin, M.D.; Cording, E.J.: Building response to excavation-induced settlement. J. Geotech. Eng. 115(1), 1–21 (1989)

    Article  Google Scholar 

  10. Finno, R.J.; Atmatzidis, D.K.; Perkins, S.B.: Observed performance of a deep excavation in clay. J. Geotech. Eng. 115(8), 1045–1064 (1989)

    Article  Google Scholar 

  11. Clough, G.W.; O’Rourke, T.D.: Construction induced movements of in-situ walls. Design and performance of earth retaining structures, p. 439–470. ASCE, Reston (1990)

    Google Scholar 

  12. Choi, S.H.J.; You, X.; Barratt, C.; Cording, E.J.: Site characteristic curve and risk assessment for buildings around large, deep excavations. In: North American Tunneling—2014 Proceedings. N.A.T. 2014 (pp. 388–396). Society for Mining, Metallurgy and Exploration (S.M.E.) (2014)

  13. Tan, Y.; Zhu, H.H.; Peng, F.; Karlsrud, K.; Wei, B.: Characterization of semi-top-down excavation for subway station in shanghai soft ground. Tunn. Undergr. Space Technol. 68(1), 244–261 (2017)

    Article  Google Scholar 

  14. Ou, C.Y.; Liao, J.T.; Lin, H.D.: Performance of diaphragm wall constructed using the top-down method. J. Geotech. Geoenviron. Eng. 9(798), 798–808 (1998)

    Article  Google Scholar 

  15. Kung, G.T.; Juang, C.H.; Hsiao, E.C.; Hashash, Y.M.: Simplified model for wall deflection and ground-surface settlement caused by braced excavation in clays. J. Geotech. Geoenviron. Eng. 133(6), 731–747 (2007)

    Article  Google Scholar 

  16. Ng, C.W.W.; Hong, Y.; Liu, G.B.; Liu, T.: Ground deformations and soil–structure interaction of a multi-propped excavation in Shanghai soft clays. Géotechnique 62(10), 907–921 (2012)

    Article  Google Scholar 

  17. Tan, Y.; Wang, D.: Characteristics of a large-scale deep foundation pit excavated by the central-island technique in Shanghai soft clay. II: Top-down construction of the peripheral rectangular pit. J. Geotech. Geoenviron. Eng. (2013)

  18. Son, M.; Cording, E.J.: Numerical model tests of building response to excavation-induced ground movements. Can. Geotech. J. 45(11), 1611–1621 (2008)

    Article  Google Scholar 

  19. Son, M.; Cording, E.J.: Responses of buildings with different structural types to excavation-induced ground settlements. J. Geotech. Geoenviron. Eng. 137(4), 323–333 (2011)

    Article  Google Scholar 

  20. Khoiri, M.; Ou, C.Y.: Evaluation of deformation parameter for deep excavation in sand through case histories. Comput. Geotech. 47, 57–67 (2013)

    Article  Google Scholar 

  21. Elbaz, K.; Shen, S.L.; Tan, Y.; Cheng, W.C.: Investigation into performance of deep excavation in sand covered karst: a case report. Soils Found. Tokyo 58(4), 1042–1058 (2018)

    Article  Google Scholar 

  22. Li, H.; Shen, S.L.; Hou, W.D.; Wu, W.S.: Analysis on environmental impact of deep excavation in Shenzhen, China. Tunnel. Undergr. Constr. GSP 242, 283–292 (2014)

    Article  Google Scholar 

  23. Chen, M.; Shen, S.L.; Wu, H.N.; Wang, Z.F.; Horpibulsuk, S.: Geotechnical characteristics and potential geo-hazards of deep excavation in weathered granite gneiss region of Guangzhou. China. Bull. Eng. Geol. Environ. 76(2), 681–1394 (2017)

    Article  Google Scholar 

  24. Hsieh, P.G.; Ou, C.Y.: Shape of ground surface settlement profiles caused by excavation. Can. Geotech. J. 35(6), 1004–1017 (1998)

    Article  Google Scholar 

  25. Ni, P.P.; Song, L.H.; Mei, G.X.; Zhao, Y.L.: Predicting excavation-induced settlement for embedded footing: case study. Int. J. Geomech. 18(4), 05018001 (2018)

    Article  Google Scholar 

  26. Ji, X.B.; Ni, P.P.; Barla, M.; Zhao, W.; Mei, G.X.: Earth pressure on shield excavation face for pipe jacking considering arching effect. Tunn. Undergr. Space Technol. 72, 17–27 (2018)

    Article  Google Scholar 

  27. Chen, Y.; Zhao, W.; Han, J.Y.; Jia, P.J.: A CEL study of bearing capacity and failure mechanism of strip footings on c-φ soils. Comput. Geotech. 111(7), 126–136 (2019)

    Article  Google Scholar 

  28. Jia, P.J.; Zhao, W.; Khoshghalb, A.; Ni, P.P.; Jiang, B.F.; Chen, Y.; Li, S.G.: A new model to predict ground surface settlement induced by jacked pipes with flanges. Tunn. Undergr. Space Technol. 98, 103330 (2020)

    Article  Google Scholar 

  29. Peck, R.B.: Deep excavation and tunneling in soft ground. State of-the-art-report. In: Proc., 7th Int. Conf. of Soil Mechanics and Foundation Engineering, ISSMGE, Mexico City, Mexico, pp. 225–281 (1969)

  30. Hashash, Y.M.A.; Osouli, A.; Marulanda, C.: Central artery/tunnel project excavation induced ground deformations. J. Geotech. Geoenviron. Eng. 9(1399), 1399–1406 (2008)

    Article  Google Scholar 

  31. Griffiths, D.V.: Computation of bearing capacity factors using finite elements. Géotechnique 32(3), 195–202 (1982)

    Article  Google Scholar 

  32. Verma, A.K.; Singh, T.N.: Influence of Young’s modulus and Poisson’s ratio on the displacement around a circular tunnel. In: Sinha, R.; Ravindra, R. (Eds.) Earth System Processes and Disaster Management. Society of Earth Scientists Series. Springer, Berlin, Heidelberg (2013)

    Google Scholar 

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Acknowledgements

This work was supported by the startup funding from Xi’an University of technology, China (107-451120002), the National Natural Science Foundation of China (52008338) and State Key Laboratory of Eco-hydraulics in Northwest Arid Region, China (QNZX-2019-07).

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Authors and Affiliations

  1. State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi’an University of Technology, Xi’an, 710048, Shaanxi, China

    Yang Chen

  2. Institute of Geotechnical Engineering, Xi’an University of Technology, Xi’an, 710048, Shaanxi, China

    Yang Chen

  3. School of Urban Rail Transportation, Soochow University, Suzhou, 215002, Jiangsu, China

    Pengjiao Jia

  4. The Fifth Construction. LTD of China Tiesiju Civil Engineering Group, Jiujiang, 332000, Jiangxi, China

    Xinbo Ji

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  1. Yang Chen
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  2. Pengjiao Jia
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  3. Xinbo Ji
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Correspondence to Yang Chen or Xinbo Ji.

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Chen, Y., Jia, P. & Ji, X. Investigation into the Performance of a Covered Top-Down Pit-in-Pit Deep Excavation in Shenzhen Soil-Rock Mixed Strata. Arab J Sci Eng 46, 10419–10437 (2021). https://doi.org/10.1007/s13369-021-05373-5

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  • DOI: https://doi.org/10.1007/s13369-021-05373-5

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