METHOD FOR CONSTRUCTION OF A SUBWAY LINE USING A LINING OF A LARGE DIAMETER CROSS-SECTION Russian patent published in 2022 - IPC E02D29/45 

FIELD: subway lines construction.

SUBSTANCE: invention relates to the construction of subway lines. The method for constructing a subway line using a large-diameter cross-section lining includes driving with the help of a mechanized tunnel-boring complex and installing a large-diameter subway line lining containing station complexes and running tunnels in the form of sections of the subway line, on which rail track structures are placed for the circulation of trains with passengers on hauls between stations, as well as traction substations with a contact network. The running tunnels have a two-tier layout, in which the rail track structures are located one above the other along one rail track per tier, and the technological equipment and communications are located in the side engineering compartments along the running rail track structures, while the rail tracks are separated from the engineering compartments by a solid vertical partition. Traction substations are located in the span tunnels between the station complexes in the side engineering compartments in the middle of the span. Each tier with rail tracks is provided with its own contact rail in the form of a bimetallic contact rail with fastening brackets, located along a continuous vertical partition in the lower part of each tier.

EFFECT: reducing the construction volumes of metro station complexes, as well as reducing energy consumption for traction, the magnitude of short-term overloads of contact networks of metro lines and the length of connecting cable lines.

1 cl, 2 dwg