Theoretical Analysis on Several Misconceptions in Tunnel Construction with NATM
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Several misconceptions found in tunnel construction were analyzed with NATM and charactericstic curve of surrounding rock-support structure,which included the role of the tunnel secondary lining,construction time of secondary lining and backfilling of the empty between linig and surrounding rock.Through the analysis,hazards of these misconcetions were pointed out.The conlusion can be consulted by the project management.