THREE-ARCHED UNDERGROUND STATION OF THE CLOSED METHOD FOR THE PYLON-TYPE WORKS PERFORMANCE Russian patent published in 2023 - IPC E21D9/00 E02D29/00 

FIELD: construction.

SUBSTANCE: used in the construction of metro stations, erected by a closed method of work performance. The three-arched underground station of the closed pylon type consists of a middle and two side station tunnels that do not intersect each other, in the side tunnels there are rail track structures and passenger boarding platforms with technical zones located under them for passing communications, in the middle tunnel there is a passenger platform with service rooms located under it, while the lining of the station tunnels provides for openings for passengers to pass between the platforms. The lining of the station tunnels is made of monolithic reinforced concrete, has a horseshoe shape and the same cross section. The linings of the side station tunnels are in contact with the lining of the middle tunnel, the openings for the passage of passengers between the platforms in the tunnels are framed in the form of additional reinforcement in the concrete body of the tunnel linings, which ensures the bearing capacity of the tunnel lining in the places where the openings are organized, and the passages for passengers between the platforms are formed in places of tunnel lining contacts.

EFFECT: improvement of the maintainability and mechanization of work on excavation during the excavation of station tunnels, providing a rational contour of the lining during the construction of three-arched deep pylon-type metro stations, as well as reducing possible sedimentation of the day surface and excluding the construction of human passes intended for the passage of passengers between tunnels.

1 cl, 2 dwg