Abstract
At the present stage of the large infrastructure construction in China’s metropolis, an appropriate design method contributes to minimizing the excavation-induced impact on existing facilities becomes very significant. In this paper, a case study focused on the optimization of the construction for a split-level underground road hub above crisscross metro-lines in plan is carried out by the BIM (Building Information Modeling)-based design method. The underground road hub is completed by the cut and cover method while the metro-lines are completed by the shield TBM method. Three-dimensional combined numerical simulations are carried out to analyze the interact between the hub and metro-lines during the excavation and construction. A 3D (three dimension) model is developed to simulate the mechanical response of existing facilities during the construction process and the internal force distribution of the structure of the hub, respectively. The numerical results are analyzed in combination with the corresponding data. An optimal design scheme is also verified for the investigated case. Numerical results confirm the effectiveness of the BIM-based design method on controlling the excavation-induced deformation of existing facilities. Through the numerical studies, suggestions are also proposed for the optimal design of the underground hub in complicated metropolitan environment.
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Shen, Y., Sun, W., Wang, S. (2020). Case Study on the BIM-Based Design of a Complicated Underground Road Hub Above Crisscross Metro-Lines by a Combined Numerical Method. In: Correia, A., Tinoco, J., Cortez, P., Lamas, L. (eds) Information Technology in Geo-Engineering. ICITG 2019. Springer Series in Geomechanics and Geoengineering. Springer, Cham. https://doi.org/10.1007/978-3-030-32029-4_42
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DOI: https://doi.org/10.1007/978-3-030-32029-4_42
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