Analysis Based on FLAC3D of Surface Subsidence Caused by a Double-Tube Parallel Tunnel Excavation

Dong Liang Guo; De Shen Zhao

doi:10.4028/www.scientific.net/AMM.395-396.443

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 395-396Analysis Based on FLAC3D of Surface Subsidence...

Analysis Based on FLAC^3D of Surface Subsidence Caused by a Double-Tube Parallel Tunnel Excavation

Abstract:

In the double-tube parallel tunnel excavation cross-range, it will result in a larger superimposed surface subsidence, and even induce land subsidence to cause the accident. This paper uses the finite difference FLAC^3D software to have a numerical simulation on double-tube parallel tunnel excavation of Dalian Spring Street Station. The land subsidence law of a double-tube parallel tunnel excavation which is obtained by analyzing the vertical and longitudinal settlement curve can predictable similar ground subsidence caused by tunnel construction and guide the safety construction of practical engineering