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Tunnel structure with rectangular cross section

A technology of tunnel structure and cross-section, which is applied to the ventilation, safety devices, mining devices of mines/tunnels, etc., can solve the problems of increasing tunnel construction costs, difficulty in tunnel construction, and increasing civil construction costs, and achieves a solution to the maintenance space. Insufficient, solve the fire division, reduce the effect of construction cost

Active Publication Date: 2020-09-29
CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing tunnel forms a concrete smoke exhaust duct by secondary masonry on the top of the vehicle tunnel. Since the pouring of the concrete smoke exhaust duct needs to raise the height of the tunnel roof, the construction is difficult and the civil engineering cost is increased; at the same time, the pipe gallery The cable channel inside is also made of concrete structure, and the installation and maintenance height of the cable channel is required to be no less than 1.8m. It is also necessary to increase the tunnel height, which leads to the problem of increasing the tunnel construction cost
[0004] To sum up, the existing tunnels have the problems of high construction difficulty and high construction cost

Method used

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  • Tunnel structure with rectangular cross section
  • Tunnel structure with rectangular cross section
  • Tunnel structure with rectangular cross section

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Embodiment Construction

[0051] In order to make the technical solutions and advantages in the embodiments of the present application clearer, the exemplary embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only part of the embodiments of the present application, and Not an exhaustive list of all embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0052] The embodiment of the present application provides a tunnel structure with a rectangular cross section, figure 1 and figure 2 The structures shown are different cross-sections of the tunnel structure. The above-mentioned tunnel structure includes a vehicle tunnel 1, a pipe gallery 2, a partition wall 3, a tunnel machine room (not shown in the figure), and a smoke exhaust shaft (not shown in the figure). ) a...

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Abstract

The embodiment of the invention relates to the technical field of tunnel ventilation and smoke discharge, in particular to a tunnel structure with a rectangular cross section. The tunnel structure comprises travelling tunnels, a pipe gallery, a tunnel machine room, a smoke discharge ventilating shaft and a tunnel smoke discharge system, wherein the pipe gallery comprises a smoke discharge air flueand a cable channel; a dismountable fire-proof plate is installed at the bottom of the cable channel; the tunnel smoke discharge system comprises a plurality of transverse smoke discharge pipes, smoke discharge efficiency promotion devices corresponding to the transverse smoke discharge pipes one to one, an air shaft end smoke discharge device and a control device; the transverse smoke dischargepipes are installed at the tops of the travelling tunnels at intervals in the length direction of the travelling tunnels; and the smoke discharge efficiency promotion devices are installed in the smoke discharge air flue and communicate with corresponding smoke outlets. The tunnel structure can reduce the construction difficulty and the construction cost and can improve the smoke discharge efficiency.

Description

technical field [0001] The present application relates to the technical field of tunnel ventilation and smoke exhaust, in particular to a tunnel structure with a rectangular cross section. Background technique [0002] The existing ultra-long underwater tunnels have the characteristics of long distances, large cross-sections, and high fire hazards, which bring great difficulties to the installation of tunnel ventilation and smoke exhaust systems. The ventilation and smoke exhaust system of ultra-long underwater tunnels usually adopts a focused smoke exhaust method. The cross-section of the tunnel generally adopts the structure of two holes and one pipe gallery. The holes on both sides are tunnels for vehicles. and piping space. At the same time, the key smoke exhaust system should consider the layout of professional equipment caverns and pipelines, and the arrangement of personnel evacuation channels in the cross section. The rationality of the cross-section structure of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F1/00E21F1/04E21F5/00E21F5/04E21F17/06E21F17/18
CPCE21F1/003E21F1/04E21F5/00E21F5/04E21F17/06E21F17/18
Inventor 付凯于晓波王威梁园李清瑞王旭明谌启发崔志强罗章波黄新连何明华邱浩赵超峰王春芳
Owner CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP
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