Abstract
The purpose of this research is that the analytical solutions of nonlinear behavior of ground in a deep circular tunnel under anisotropy stress field are derived, and the explicit analysis method (EAM) which bases on the convergence confinement method, the principle of confinement loss, and the simple calculation spreadsheet is particularly proposed. This study includes that introducing a incremental procedure of confinement loss into the analytical solutions derived under anisotropy stress field, establishing the direct calculation logic and flow chart, using a calculation spreadsheet to simply calculate and draw figures, considering the stress path and ground response curve at excavation face, and distribution of stress/displacement around tunnel. The results obtained by the explicit analysis and by the finite element analysis are approximately consistent in those curves described in the convergence-confinement method. The explicit analysis method proposed is easy and directly to simulate the ground response behavior due to the advancing excavation of tunnel.
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Lee, Y.L., Tsai, L.J., Lee, W.Y.: Explicit analysis for the ground response behavior due to the advancing excavation of tunnel under anisotropic stress field. J. Chin. Inst. Civil Hydraul. Eng. 25(3), 231–240 (2013)
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Lee, Y.L., Xin, Y.X. (2018). Explicit Analysis for the Ground Response Behavior Due to the Advancing Excavation of Tunnel Under Anisotropy Stress Field. In: Zhang, D., Huang, X. (eds) Proceedings of GeoShanghai 2018 International Conference: Tunnelling and Underground Construction. GSIC 2018. Springer, Singapore. https://doi.org/10.1007/978-981-13-0017-2_5
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DOI: https://doi.org/10.1007/978-981-13-0017-2_5
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