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Fire-prevention protection structure for underwater tunnel concrete structure

A technology for concrete structures and protective structures, applied in the field of tunnels, which can solve the problems of affecting the fire prevention effect, inconvenient construction and maintenance, and damage to the surface structure, and achieve the effects of improving the fire protection level of tunnels, convenient follow-up maintenance, and high safety

Inactive Publication Date: 2007-10-17
SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the deformation of the tunnel structure, water leakage and other factors, the fireproof coating layer is easy to crack and the performance of the material is reduced, which not only affects the fireproof effect, but also affects the service life; and the laying of the fireproof board scheme, although it meets certain deformation requirements, but its joints, metal Fasteners transfer part of the heat to the surface of the structure, causing damage to the surface structure, making construction and subsequent maintenance inconvenient

Method used

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  • Fire-prevention protection structure for underwater tunnel concrete structure
  • Fire-prevention protection structure for underwater tunnel concrete structure
  • Fire-prevention protection structure for underwater tunnel concrete structure

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Embodiment Construction

[0018] The features of the present invention and other related features will be further described in detail below in conjunction with the accompanying drawings through embodiments, so as to facilitate the understanding of those skilled in the art:

[0019] As shown in Figure 1-4, the labels 1-12 represent: concrete member 1, stainless steel expansion screw 2, hanging piece 3, screw 4, metal keel 5, fireproof cotton 6, fireproof board 7, stainless steel fireproof screw 8, U-shaped Groove 9, fireproof glue 10, screw 11, U-shaped groove 12.

[0020] The structure of this embodiment includes a tunnel concrete component 1, a hanging part 3, a metal keel 5, and a fireproof board 7. The hanging part 3 is a metal rod, and the hanging part 3 and the tunnel concrete component 1 are connected and fixed by stainless steel expansion screws 2. The hanger 3 and the metal keel 5 are hung and fixed by screws. The metal keel 5 is composed of a U-shaped groove 9 and a U-shaped groove 12. Screws...

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Abstract

The invention relates to a tunnel, in particular to fireproofing protection structure used in the subaqueous tunnel concrete structure, wherein a plurality of hanging pieces are arranged between the tunnel concrete structure and the antifiring plate, thereby reducing the contact area therebetween and conduction heat, and fully using the space, while the assemble and the next maintenance are convenient, the method is reliable and stable, which can effectively absorb the adverse factors because of the segment rising and contracting, sedimentation, distortion etc with high security, and effectively absorbs the positive and negative pressure shock wave for the vehicles in and out and meeting.

Description

technical field [0001] The invention relates to tunnels, in particular to a fire protection structure for underwater tunnel concrete structures. Background technique [0002] The fire protection methods of the concrete structure insulation layer of the underwater tunnel mainly include spraying fire-proof paint and laying fire-setting boards. Due to the deformation of the tunnel structure, water leakage and other factors, the fireproof coating layer is easy to crack and the performance of the material is reduced, which not only affects the fireproof effect, but also affects the service life; and the laying of the fireproof board scheme, although it meets certain deformation requirements, but its joints, metal Fasteners transfer part of the heat to the surface of the structure, causing damage to the surface structure and making construction and subsequent maintenance inconvenient. Contents of the invention [0003] The object of the present invention is to provide a fire pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/063
Inventor 曹文宏范益群张勇乔宗昭
Owner SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE