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    ARTICLE

    Stability Analysis of Cross-channel Excavation for Existing Anchor Removal Project in Subway Construction

    Li Bin1,2,3, Fang Hongyuan1,2,3,*, He Wei4, Sun Bin1

    CMES-Computer Modeling in Engineering & Sciences, Vol.113, No.1, pp. 57-69, 2017, DOI:10.3970/cmes.2017.113.054

    Abstract The cutter head will be stuck when the shield machine pass through the area existing anchor left by foundation construction of surrounding high-rise building. Subsurface excavation method is an efficient way to remove the existed anchor. In this paper, a three-dimensional finite element model is developed to study stability of cross-channel excavation. The time-spatial effects of arch crown settlement, intrados uplift and side wall horizontal convergence are analyzed according to different excavation size, lining thickness and lining order. The results show that the excavation size is the main factor to control the deformation of the More >

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