Construction Stability Analysis and Field Monitoring of Shallowly Buried Large-Section Tunnels in Loess Strata
Fang Zheng,
Wenqiang Li,
Zhanping Song
et al.
Abstract:Reasonable excavation step footage and lining support timing are highly important for improving tunnel construction efficiency and ensuring construction safety. Taking the Huanxian No. 1 Tunnel of the Xi-Yin railway as the basis of this study, a 3D numerical model was established using MIDAS GTS NX290 finite element software. This model was used to investigate the deformation and force characteristics of the tunnel-surrounding rock and support structures under three different excavation footages and four diffe… Show more
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