COLUMNED TRIPLE-ARCHED SUBWAY STATION WITHOUT SIDE PLATFORMS Russian patent published in 2011 - IPC E02D29/00 

FIELD: construction.

SUBSTANCE: invention refers to construction of tunnels, in particular - to construction of subway stations. Columned triple-arched subway station without side platforms, including middle hall with passenger platforms, side tunnels of running diameter opened at the side of middle hall, without passenger platforms, with walls-columns separated with openings, pitch of which equals pitch of doors arrangement in wagons of train. Side tunnels are arranged of unclamped prefabricated reinforced concrete rings of standard width, including upper and lower metal figure tubings within the limits of ring dimensions, having triangular slot in the middle part for the whole width of ring and joined via hinged devices with upper and lower reinforced concrete runs, which are rigidly joined to reinforced concrete walls-columns. On the back of figure tubing there are holes provided to fix steel support for end journals of upper and reverse arches of the middle hall of station in process of its erection.

EFFECT: reduced labour intensiveness and faster rates of construction.

3 dwg