METHOD OF ERECTION AND ARRANGEMENT OF A SINGLE-SPAN UNDERGROUND METRO STATION OF AN OPEN METHOD OF PERFORMING WORKS

摘要

FIELD: construction.;SUBSTANCE: invention relates to construction of underground metro stations by open method. Method of erection of single-span subway station of open method of works execution consists in creation of trench, structure of walls fixing is determined by depth of station laying and engineering-geological conditions of construction, and accommodation within a single-span multilevel subway station pit, comprising a roof slab, a floor slab, side walls and a tray (foundation) slab, as well as rails and passenger platforms with subplatform spaces, wherein concreting the single-span closed frame structure is performed by the "bottom-up" method from the tray slab, then, side walls, floor slab and roof slab are erected, roof slab and floor slab are fixed on frame side walls, wherein the closed frame structure is divided by the floor slab into two tiers, upper and lower, upon completion of erection of station lining on each tier a single rail track and a passenger platform are built such that the track and the passenger platform of the upper tier are located, respectively, above rail and passenger platform of lower tier, at that, under passenger platforms of upper and lower tiers technical rooms are arranged, as well as technical result is achieved by the fact that the single-span metro station of the open method of performing works is a construction structure, arranged inside the pit and containing a roof slab, a floor slab, side walls and a tray slab, as well as rails and passenger platforms with subplatform spaces, wherein the station is made in the form of a single-span closed frame structure of monolithic reinforced concrete, in which the roof slab and floor slab are supported by side walls of the frame, wherein the closed frame structure is divided by the floor slab into two tiers, upper and lower, each of which comprises a single rail track and a passenger platform, wherein rail track and passenger platform of upper tier are located above track and passenger platform of lower tier, respectively, and technical rooms are arranged under passenger platforms of upper and lower tiers.;EFFECT: technical result consists in improvement of technological effectiveness and speed of construction, possibility of placing new metro stations on smaller areas in constrained conditions of urban development and reduced volume of developed soil.;2 cl, 1 dwg