Assembled subway station and construction method thereof

An assembled subway station, comprising a plurality of components combined in a ring shape, wherein the plurality of components comprise a bottom plate component, two bottom corner components, two side wall components, a middle plate component, two top corner components, and a top plate component, the bottom corner components are connected to two lateral sides of the bottom plate component, the top corner components are connected to two lateral sides of the top plate component, the side wall components are connected to two lateral sides of the middle plate component, and the side wall components are connected between the bottom corner components and the top corner components;

• connection surfaces of each component are each provided with a concave-convex structure being matched with another concave-convex structure on a relevant connection surface of an adjacent component, butt joint positions of two adjacent components are filled with sealing structures, the connection surfaces of each component are further each provided with embedded grooves extending in a longitudinal direction, the embedded grooves of two adjacent components are oppositely arranged, and connecting members for exerting opposite fastening forces on the two adjacent components are installed in the oppositely arranged embedded grooves;
• the respective embedded groove is a C-shaped groove, a notch of the C-shaped groove faces outwards, and outer groove edges of the C-shaped groove are in stop fit with a connecting member;
• the respective connecting member is a H-shaped steel, the H-shaped steel comprises two side flanges and a middle web, the two side flanges are respectively in stop fit with outer groove edges of two oppositely arranged C-shaped grooves, and the web is in clearance fit with the notches of the two oppositely arranged C-shaped grooves;
• and
• the H-shaped steel is provided with first wedge structures, the first wedge structures each have a first wedge surface arranged obliquely in a length direction of the H-shaped steels, the C-shaped grooves are each provided with second wedge structures, and the second wedge structures are laterally compress-fitted with the first wedge surfaces.