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Arched wall of polymorphic subway tunnel based on heat-reducing and flame-retardant

A polymorphic, tunnel-based technology, applied in tunnels, tunnel linings, mine/tunnel ventilation, etc., can solve problems such as greater threats to personnel safety, poor fire prevention and cooling performance, and fewer subway tunnels, so as to reduce threats and improve stability sex and strength, volume-enhancing effects

Active Publication Date: 2020-02-14
江苏融鼎建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there are many studies on rainproofing of subway tunnels, but there are few fire prevention measures for subway tunnels, and the space of existing subway tunnels is relatively airtight. Therefore, after a fire breaks out, it poses a greater threat to the safety of personnel, such as 1. 26 Tokyo subway fire accident, the existing subway tunnel walls are generally made of internally embedded steel bars and externally poured concrete, which is poor in fire prevention and cooling, and cannot provide certain safety guarantees in case of fire

Method used

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  • Arched wall of polymorphic subway tunnel based on heat-reducing and flame-retardant
  • Arched wall of polymorphic subway tunnel based on heat-reducing and flame-retardant
  • Arched wall of polymorphic subway tunnel based on heat-reducing and flame-retardant

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Embodiment 1

[0043] See figure 1 , A polymorphic subway tunnel arch wall based on heat-reducing and flame-retardant, including an embedded polymorphic layer and a stereotyped lining layer, the embedded polymorphic layer is fixedly connected to the inner wall of the tunnel, and the embedded polymorphic layer It is arranged adjacent to the shaped lining layer, the embedded polymorphic variable layer includes a hollow overflow layer and two symmetrically arranged thermally variable layers, and a plurality of evenly distributed upper support pillars are connected between the shaped lining layer and the inner wall of the tunnel 11 and side support pillars 12, multiple upper support pillars 11 are located in the hollow overflow layer, multiple side support pillars 12 are located in the thermally variable layer, multiple overflow holes 21 are all located under the hollow overflow layer, multiple counterflow holes 22 is located inside the thermally variable layer. The shaped inner lining is excavate...

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Abstract

The invention discloses an arched wall of a polymorphic subway tunnel based on heat-reducing and flame-retardant, and belongs to the field of building construction. According to the arched wall of thepolymorphic subway tunnel based on heat-reducing and flame-retardant, through the arrangements of an embedded polymorphic layer and a hollow overflow layer, in the case of fire or high temperature imminent fire, irregular balls are melted, liquid containing carbon dioxide flows out, on the one hand, volatilization takes away heat to perform cooling, on the other hand, the concentration of carbondioxide of a part can be effectively improved, thus a certain suppression effect on the fire is realized, effective time of fire fighting for staffs is prolonged, then the threats to the lives and properties of people caused by the fire in the subway tunnel can be effectively reduced, at the same time, when the liquid in the irregular balls flows out completely, due to the loss of the irregular balls, an underlying skeleton in a heat-varying layer generates voids, the voids can store and contain more heat and smoke, and the threat of the fire is further reduced.

Description

Technical field [0001] The invention relates to the field of building construction, and more specifically to a polymorphic subway tunnel arch wall based on heat reduction and flame retardancy. Background technique [0002] The subway is a form of railway transportation. It refers to the urban rail transit system that mainly runs underground, that is, the abbreviation of "underground railway" or "underground railway" (Subway, tube, underground); many such systems are designed to match the construction environment. And considering the construction and operating costs, it may be converted to ground or elevated sections outside the city center. The subway is a proprietary, high-density, and high-volume urban rail transit system (Metro) that covers all kinds of underground and above-ground rights of way in urban areas. The subway in Taiwan is called "Rapid transit". [0003] In addition to subways, it also includes elevated railways or railways laid on the road. Therefore, the subway ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/00E21F5/00E21F3/00
CPCE21D11/003E21F5/00E21F3/00
Inventor 刘志其他发明人请求不公开姓名
Owner 江苏融鼎建筑科技有限公司
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