Tunnel protective door system capable of fireproofing and anti-knock

Abstract

The invention discloses a tunnel protective door system capable of fireproofing and anti-knock. The tunnel protective door system capable of fireproofing and anti-knock comprises a grotto side surfaceplate (1), a tunnel side surface plate (2) and a fire-resistant layer (3); steel trusses (5) are arranged between the grotto side surface plate (1) and the tunnel side surface plate (2) and are distributed in a longitudinal and horizontal staggered mode; the horizontal steel trusses and the longitudinal steel trusses (5) are respectively and fixedly connected with the grotto side surface plate (1) and the tunnel side surface plate (2), a plurality of filling space units are formed, all of the filling space units are respectively filled with fire-resistant materials, the fire-resistant layer (3) is formed between the grotto side surface plate (1) and the tunnel side surface plate (2), and thus a protective door system provided with a sandwich structure is formed. According to the tunnel protective door system capable of fireproofing and anti-knock, rigidity and intensity of the protective door is guaranteed through two layers of surface plates, good properties of heat insulation, fireresistant and anti-knock are provided through the fire-resistance layer materials, each filling space unit is individually filled with the fire-resistant materials through each filling hole respectively, and uniform stress of the whole is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of railway tunnel protective doors, and more specifically relates to a fireproof and anti-explosion tunnel protective door system. Background technique [0002] With the development of my country's railway construction, especially the large-scale construction of passenger dedicated lines, the number and length of railway tunnels have increased year by year, and the fire prevention and rescue design problems of railway tunnels have become increasingly 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. [0003] At present, steel structures are usually painted with fire-resistan...

AI Technical Summary

Problems solved by technology

[0004] 1. The way of coating the fire-resistant coating on the outside of the protective door is usually not very satisfactory, and the thickness is thick and heavy. When the air humidity in the tunnel is high and the adhesion force is not good under the action of the tunnel piston wind, it is easy to fall off and the corrosion is serious. ;

[0005] 2. The method of applying refractory coating on the outside of the protective door cannot enhance the tensile and bending performance of the protective door, and cannot play the role of resisting impact and strong tunnel piston wind on the protective door;

[0006] 3. Except for the coating on the surface of the protective door, there is no other protective layer for fire protection and explosion protection;

[0007] 4. The surface of the protective door is rough and the decoration is poor; the design of the lifting chain is not optimized enough

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