Rectangular highway tunnel fire prevention device

Abstract

The invention provides a rectangular highway tunnel fire prevention device. The rectangular highway tunnel fire prevention device comprises two parts, namely tunnel segments and the fire prevention device. The fire prevention device is of a rectangular structure, and is divided into two structural types, one is an integrate type, and the other is a detachable type, wherein the integrate type is that the fire prevention device is of an integral type, the tunnel segments are fixed to the fire prevention device through reserved bolt holes, and the lower bend positions of the fire prevention device are directly pre-buried under a roadbed. The detachable type is that the fire prevention device is composed of an upper portion fire prevention component and two lower portion fire prevention components, the upper portion fire prevention component is connected with the tunnel segments reserved bolt holes, the upper ends of the lower portion fire prevention components are connected with the tunnel segments through reserved holes, and the lower ends of the lower portion fire prevention components are directly pre-buried under the roadbed. The fire prevention device adopts a thermosetting resinimpregnated paper high pressure laminate plate, which is a fire prevention plate, and has the characteristics of heat preservation and insulation, light weight, high strength, fire resistance, easy processing and the like. The rectangular highway tunnel fire prevention device has the advantages of high fire resistance, good decorative property, simple installation, convenient disassembly and replacement and the like.

Description

technical field [0001] The invention relates to a tunnel fire prevention device, in particular to a rectangular road tunnel fire protection device. Background technique [0002] With the development of economy and transportation, in order to alleviate traffic pressure, tunnels have become an important part of urban roads, mountain roads, water-crossing roads, railways, etc. Especially for intricate cities, road tunnels have become an indispensable transportation channel. The subsequent road tunnel fires have also become more serious, and the economic losses caused by tunnel fires are huge. Therefore, the fire protection of highway tunnels becomes more and more important. Existing highway tunnel fire prevention generally adopts fireproof rolling shutter or adopts fireproof paint to carry out tunnel fireproofing. The fire shutter in the tunnel must adopt the normally closed fire shutter. However, during the operation of the road tunnel, the wind pressure generated by the pi...

AI Technical Summary

Problems solved by technology

The fire shutter in the tunnel must adopt the normally closed fire shutter. However, during the operation of the road tunnel, the wind pressure generated by the piston wind generated by the passing vehicle will continuously affect the curtain plate of the fire shutter, causing positive and negative pressure effects. , pulling alternately on both sides of the curtain panel, so the peak value of the lateral wind pressure is relatively large, which will cause huge damage to the structure of the fire shutter, resulting in the phenomenon of curtain panel warping and curtain panel falling off, which increases the operating cost of the road tunnel

In addition, during the construction of fire-resistant coatings, the construction steps are complicated and require multi-layer coatings, and the fire-proof effect is not ideal.

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