%0 Journal Article %T Structural analysis of labor costs in the construction of tunnels by open, closed methods and the TOP DOWN method %A Korol, E.A. %A Chipova, Z.K. %K underground structure, transport tunnel, pedestrian tunnel, metal structures, open construction method, closed construction method, topdown method %J Construction and Architecture %D 2022 %N 10 %P 4 %I Publishing Center RIOR