DOI QR코드

DOI QR Code

2D and 3D numerical analysis on strut responses due to one-strut failure

  • Zhang, Wengang (National Joint Engineering Research Center of Geohazards Prevention in the Reservoir Areas, Chongqing University) ;
  • Zhang, Runhong (School of Civil Engineering, Chongqing University) ;
  • Fu, Yinrong (School of Civil Engineering, Chongqing University) ;
  • Goh, A.T.C. (School of Civil and Environmental Engineering, Nanyang Technological University) ;
  • Zhang, Fan (IIIBIT-Sydney, Federation University)
  • 투고 : 2016.10.15
  • 심사 : 2018.01.06
  • 발행 : 2018.07.20

초록

In deep braced excavations, struts and walers play an essential role in the whole supporting system. For multi-level strut systems, accidental strut failure is possible. Once a single strut fails, it is possible for the loads carried from the previous failed strut to be transferred to the adjacent struts and therefore cause one or more struts to fail. Consequently, progressive collapse may occur and cause the whole excavation system to fail. One of the reasons for the Nicoll Highway Collapse was attributed to the failure of the struts and walers. Consequently, for the design of braced excavation systems in Singapore, one of the requirements by the building authorities is to perform one-strut failure analyses, in order to ensure that there is no progressive collapse when one strut was damaged due to a construction accident. Therefore, plane strain 2D and three-dimensional (3D) finite element analyses of one-strut failure of the braced excavation system were carried out in this study to investigate the effects of one-strut failure on the adjacent struts.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Chongqing University, Wuhan University

참고문헌

  1. Brinkgreve, L.B.J., Swolfs, W.M. and Engin, E. (2011), Plaxis Manual, PLAXIS, The Netherlands.
  2. Bryson, L.S. and Zapata-Medina, D.G. (2012), "Method for estimating system stiffness for excavation support walls", J. Geotech. Geoenviron. Eng., 138(9), 1104-1115. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000683
  3. Chang, J.D. and Wong, K.S (1997), "Apparent pressure diagram for braced excavation in soft clay with diaphragm wall", Proceedings of the International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, London, U.K.
  4. Endicott, J. (2013), "Case histories of deep excavation. Examination of where things went wrong: Nicoll Highway Collapse, Singapore", Proceedings of the International Conference on Case Histories in Geotechnical Engineering, Chicago, Illinois, U.S.A., April.
  5. Finno, R.J., Blackburn, J.T. and Roboski, J.F. (2007), "Threedimensional effects for supported excavations in clay", J. Geotech. Geoenviron. Eng., 133(1), 30-36. https://doi.org/10.1061/(ASCE)1090-0241(2007)133:1(30)
  6. Finno, R.J., Bryson, S. and Calvello, M. (2002), "Performance of a stiff support system in soft clay", J. Geotech. Geoenviron. Eng., 128(8), 660-671. https://doi.org/10.1061/(ASCE)1090-0241(2002)128:8(660)
  7. Goh, A.T.C., Zhang, Y., Zhang, R., Zhang, W. and Xiao, Y. (2017), "Evaluating stability of underground entry-type excavations using multivariate adaptive regression splines and logistic regression", Tunn. Undergr. Sp. Technol., 70, 148-154. https://doi.org/10.1016/j.tust.2017.07.013
  8. Goh, A.T.C. and Wong, K.S. (2009), "Three-dimensional analysis of strut failure for braced excavation in clay", J. Southeast Asian Geotech. Soc., 40(2), 137-143.
  9. Hashash, Y.M. and Whittle, A.J. (2002), "Mechanisms of load transfer and arching for braced excavations in clay", J. Geotech. Geoenviron. Eng., 128(3), 187-197. https://doi.org/10.1061/(ASCE)1090-0241(2002)128:3(187)
  10. Hsieh, P.G. and Ou, C.Y. (1998), "Shape of ground surface settlement profiles caused by excavation", Can. Geotech. J., 35(6), 1004-1017. https://doi.org/10.1139/t98-056
  11. Liao, S.S. and Neff, T.L. (1990), "Estimating lateral earth pressures for design of excavation support", Proceedings of the Specialty Conference on Design and Performance of Earth Retaining Structures, New York, U.S.A., June.
  12. Long M. (2001), "Database for retaining wall and ground movements due to deep excavations", J. Geotech. Geoenviron. Eng., 127(3), 203-224. https://doi.org/10.1061/(ASCE)1090-0241(2001)127:3(203)
  13. Low, Y.S., Ng, D.C.C., Chin, Y.Y. and Ting, S.E. (2012), "A Singapore case history of temporary removable ground anchor design to TR26: 2010", IES J. Part A Civ. Struct. Eng., 5(3), 181-194. https://doi.org/10.1080/19373260.2012.696443
  14. Moormann, C. (2004), "Analysis of wall and ground movements due to deep excavations in soft soil based on a new worldwide database", Soil. Found., 44(1), 87-98. https://doi.org/10.3208/sandf.44.87
  15. Ng, C.W.W. (1992), "An evaluation of soil-structure interaction associated with a multi-propped excavation", Ph.D. Dissertation, University of Bristol, Bristol, U.K.
  16. Ng, C.W.W. and Yan, R.W. (1998), "Stress transfer and deformation mechanisms around a diaphragm wall panel", J. Geotech. Geoenviron. Eng., 124(7), 638-648. https://doi.org/10.1061/(ASCE)1090-0241(1998)124:7(638)
  17. Ou, C.Y., Liao, J.T. and Lin, H.D. (1998), "Performance of diaphragm wall constructed using top-down method", J. Geotech. Geoenviron. Eng., 124(9), 798-808. https://doi.org/10.1061/(ASCE)1090-0241(1998)124:9(798)
  18. Peck, R.B. (1969), "Deep excavation and tunnelling in soft ground", Proceedings of the 7th International Conference on Soil Mechanics and Foundation Engineering, Mexico City, Mexico,
  19. Pong, K.F., Foo, S.L., Chinnaswamy, C.G., Ng, C.C.D. and Chow, W.L. (2012), "Design considerations for one-strut failure according to TR26-a practical approach for practising engineers", IES J. Part A Civ. Struct. Eng., 5(3), 166-180. https://doi.org/10.1080/19373260.2012.700790
  20. Saleem, M. (2015), "Application of numerical simulation for the analysis and interpretation of pile-anchor system failure", Geomech. Eng., 9(6), 689-707. https://doi.org/10.12989/gae.2015.9.6.689
  21. Stille, H. (1976), "Behaviour of anchored sheet pile walls", Ph.D. Dissertation, Royal Institute of Technology, Stockholm, Sweden.
  22. Stille, H. and Broms, B.B. (1976), "Load redistribution caused by anchor failures in sheet pile walls", Proceedings of the 6th European Conference on Soil Mechanics and Foundation Engineering, Vienna, Austria, March.
  23. TR26 (2010), Technical Reference for Deep Excavation, Spring Singapore, Singapore.
  24. Twine, D. and Roscoe, H. (1997), Prop Loads: Guidance on Design, CIRIA Core Programme Funders' Report FR/CP/48, Construction Industry Research and Information Association, London, U.K.
  25. Van Langen, H. (1991), "Numerical Analysis of Soil-structure Interaction", Ph.D. Dissertaiton, Delft University of Technology, Delft, The Netherlands.
  26. Xiang, Y., Goh, A.T.C., Zhang, W. and Zhang, R. (2018), "A multivariate adaptive regression splines model for estimation of maximum wall deflections induced by braced excavation in clays", Geomech. Eng., 14(4), 315-324. https://doi.org/10.12989/GAE.2018.14.4.315
  27. Zhang, W.G., Goh, A.T.C., Goh, K.H., Chew, O.Y.S., Zhou, D. and Zhang, R. (2018), "Performance of braced excavation in residual soil with groundwater drawdown", Undergr. Sp., 3, 150-165. https://doi.org/10.1016/j.undsp.2018.03.002

피인용 문헌

  1. Preliminary Numerical Analysis of a Novel Retaining System in Dry Sandy Soil and Its First Application to a Deep Excavation in Wuhan (China) vol.10, pp.6, 2020, https://doi.org/10.3390/app10062006
  2. Stability Numbers for Unsupported Conical Excavations in Multi-Layered Cohesive Soils vol.10, pp.24, 2020, https://doi.org/10.3390/app10248839
  3. Deterministic and probabilistic analysis of tunnel face stability using support vector machine vol.25, pp.1, 2021, https://doi.org/10.12989/gae.2021.25.1.017