Installation method and structure of tunnel protective door with door first and wall behind

Abstract

The invention discloses a door-first-and-wall tunnel protection door mounting method and structure, further provides the tunnel protection door structure mounted according to the method, and belongs to the field of tunnel protection doors. The door-first-and-wall tunnel protection door mounting method comprises the following steps that S1, wall steel bars for reinforcing hole walls are bound; S2,protection door frame vertical column supporting pieces are fixed to or pre-buried on the set positions of the wall steel bars; S3, protection door frame vertical columns are fixed to the protection door frame vertical column supporting pieces, a protection door frame primary structure is adjusted, a protection door frame final structure is formed, and a protection door plate is mounted on the protection door frame final structure; S4, a protection door frame and the wall steel bars are locally bound so as to further improve firm connection of the protection door frame and the walls; and S5, the protection door frame and the hole walls are uniformly poured to form a door-wall integrated structure. Through a door-first-and-wall tunnel protection door mounting mode, the problem that protection door supports are loosened under the effect of piston wind and thus a protection door topples is solved, and the driving safety can be ensured.

Description

technical field [0001] The invention belongs to the field of tunnel protective doors, and in particular relates to the installation of tunnel protective doors, and more specifically relates to a tunnel protective door installation method and its structure with the door first and the wall behind. Background technique [0002] With the development of my country's railway construction, especially the large-scale construction of passenger dedicated lines, there are more and more railway tunnels, and the problems of fire prevention and rescue design of railway tunnels are becoming more and more prominent. The newly revised "Fire Protection Code for Design of Railway Engineering" requires the installation of protective doors for cross passages and equipment caverns in tunnels of a certain length. Under disaster conditions, protective doors are of great significance for protecting cavern equipment, ensuring unimpeded information, crowd evacuation and creating escape conditions. ...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the above defects or improvement needs of the prior art, the present invention provides a tunnel protective door installation method and its structure with the door first and the wall behind. The door support is loosened under the action of the piston wind to cause the problem of the protective door toppling, so as to ensure driving safety

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