METHOD FOR CONSTRUCTION OF LOWER TRANSVERSE ADJOINING OF APPROACH TUNNELS TO SINGLE-VAULTED METRO STATION WITHIN PASSENGER PLATFORM Russian patent published in 2025 - IPC E21D11/00 E02D29/00 

FIELD: construction.

SUBSTANCE: invention relates to underground construction and can be used if there is need for two-way adjoining of approach tunnels to a single-arch deep underground station with a through passage under the station. Construction of lower transverse adjoining of approach tunnels to single-vaulted metro station is carried out in the following sequence. After boring of station support tunnels at section of adjoining of transition tunnels 1 to transverse transfer chamber bulkhead of support tunnels is performed to larger diameter 2. In places of human passages in body of supports 3 there installed is reinforcement of frames of openings and concrete of monolithic supports is laid. After construction of the upper vault of chamber 4, under its protection the soil of the core of the section of the station is developed, including the lowered part at the section of the junction of transition tunnels 1, and the reverse vault of chamber 5 is mounted. Chamber vaults rest on monolithic supports. After erection of the transverse chamber lining, monolithic reinforced concrete frames are constructed for the passage of the subway rolling stock within human passages 6, then, internal structures of transfer of passenger platform structure 7, track structures 8, technical rooms 9 under passenger platform and stairway structures for passengers 10 are constructed.

EFFECT: increasing the efficiency of construction work, the reliability of the structure of the lower transverse adjoining to the single-vault metro station within the passenger area of the station and increasing the volume of passenger flow.

1 cl, 4 dwg