Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Polymorphic Subway Tunnel Arched Wall Based on Heat Reduction and Flame Retardancy

A polymorphic, tunneling technology, used in tunnels, tunnel lining, mine/tunnel ventilation, etc., can solve the problems of less subway tunnels, greater threat to personnel safety, poor fire protection and cooling performance, etc., to improve stability and strength. , reduce the threat, increase the effect of carbon dioxide concentration

Active Publication Date: 2021-01-22
江苏融鼎建筑科技有限公司
View PDF4 Cites 1 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Polymorphic Subway Tunnel Arched Wall Based on Heat Reduction and Flame Retardancy
  • A Polymorphic Subway Tunnel Arched Wall Based on Heat Reduction and Flame Retardancy
  • A Polymorphic Subway Tunnel Arched Wall Based on Heat Reduction and Flame Retardancy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] see figure 1 , a polymorphic subway tunnel arched wall based on heat reduction and flame retardancy, including an embedded polymorphic layer and a shaped lining layer, the embedded polymorphic layer is fixedly connected to the inner wall of the tunnel, and the embedded polymorphic layer Adjacent to the shaped lining layer, the embedded polymorphic layer includes a hollow overflow layer and two thermally variable layers arranged symmetrically with each other, and a number 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, a plurality of upper support pillars 11 are located in the hollow overflow layer, a plurality of side support pillars 12 are located in the thermal change layer, a plurality of overflow holes 21 are located below the hollow overflow layer, and a plurality of counterflow holes 22 is located inside the thermally variable layer. A number of evenly distri...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a polymorphic subway tunnel arched wall based on heat reduction and flame retardancy, which belongs to the field of building construction. Layer and hollow overflow layer are set, in the case of fire or high temperature is about to break out, the irregular ball is melted, and the liquid containing carbon dioxide inside flows out. The concentration of carbon dioxide can reach a certain degree of restraint on the fire, prolong the effective time of firefighting for the staff, and effectively reduce the threat to people's lives and property caused by the fire in the subway tunnel. At the same time, when the liquid in the irregular ball has flowed out Due to the loss of irregular balls, voids will be generated in the bottom skeleton in the thermotropic layer, which can store and accommodate more heat and smoke, further reducing the fire threat.

Description

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

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com