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Structure for preventing wind crossing between high-speed twin arch tunnel portal in mountain area

A technology for anti-crossing and tunneling, applied in tunnels, mining equipment, earthwork drilling and mining, etc., can solve the problem of dirty air being brought into another cavern, prevent cross-winding in the left and right tunnels of the double-arch tunnel, and reduce the tunnel fan seat Number, the effect of preventing cross-wind

Pending Publication Date: 2020-05-12
四川省交通勘察设计研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an anti-cross-wind structure at the entrance of a high-speed multi-arch tunnel in mountainous areas, so as to solve the problem of cross-flow of wind at the entrance of multi-arch tunnels in mountainous areas in the prior art, causing the dirty air just out of the tunnel to be immediately brought into another cavern problem, to achieve the purpose of preventing cross-wind tunnels in the left and right tunnels of the double-arch tunnel and reducing the number of tunnel fan seats

Method used

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  • Structure for preventing wind crossing between high-speed twin arch tunnel portal in mountain area
  • Structure for preventing wind crossing between high-speed twin arch tunnel portal in mountain area
  • Structure for preventing wind crossing between high-speed twin arch tunnel portal in mountain area

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Such as figure 1 and figure 2 Shown is a cross-wind prevention structure at the entrance of a high-speed multi-arch tunnel in a mountainous area, including connected tunnels and bridges. On the divider, several anti-cross-wind devices are distributed sequentially along the central divider of the bridge.

[0027] This embodiment can effectively prevent air crossing between the left and right tunnels of the double-arch tunnel, reduce the number of fan seats in the tunnel, and has beautiful appearance and obvious advantages. This embodiment can be widely applied to the field of road tunnels in mountainous areas. It has an obvious effect of preventing the flow of dirty air, and has a beautiful appearance, simple construction, and is convenient for popularization and use.

Embodiment 2

[0029] Such as figure 1 and figure 2 Shown is an anti-cross-wind structure at the entrance of a high-speed multi-arch tunnel in a mountainous area. On the basis of Embodiment 1, the anti-cross-wind device includes a base 1 and an anti-cross-wind wall 2 connected to the base 1 . The base 1 is made of concrete. The cross-wind prevention wall 2 includes a skeleton 201 and a transparent windshield 202 installed on the skeleton 201 . The frame 201 is aluminum alloy, and the windshield 202 is tempered glass. The base 1 is consistent with the height of the bridge guardrail.

[0030] Preferably, the height of the anti-cross-wind device is flush with the top of the end wall of the tunnel or the top of the cut bamboo hole.

Embodiment 3

[0032] Such as figure 1 and figure 2 Shown is an anti-cross-wind structure at the entrance of a high-speed multi-arch tunnel in a mountainous area. On the basis of Embodiment 2, the anti-cross-wind wall 2 is a Y-shaped structure, and the top of the Y-shaped structure faces the central divider of the bridge respectively. stick out on both sides. A lamp 3 is arranged on the top and bottom of the Y-shaped structure. The top of the Y-shaped structure is arc-shaped with a concave surface facing downward.

[0033] In this embodiment: when it is in a cold region, the embedding depth of the concrete base at the bottom of the anti-crosswind structure should be below the freezing line. The radian of the top Y-shaped structure can be adjusted appropriately according to the aesthetics. The main material of the structure is light-transmitting, high-strength tempered glass and aluminum alloy skeleton structure, but not limited to other light-transmitting materials or skeleton materials....

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Abstract

The invention discloses a structure for preventing wind crossing between high-speed twin arch tunnel portals in mountain area. The structure comprises a tunnel and a bridge connected. Devices for preventing wind crossing are arranged at one end of the bridge close to tunnel portals and positioned on a central partition belt of the bridge, and a plurality of devices for preventing wind crossing aresequentially distributed along the central partition belt of the bridge. The invention aims to provide a structure for preventing wind crossing between high-speed twin arch tunnel portals in the mountain area, so as to solve the problem that polluted air just exiting one portal is immediately brought into another portal due to cross wind flow at the twin arch tunnel portals in mountain area in the prior art; therefore, the cross wind between the left and right portals of the twin arch tunnel is reduced and the number of tunnel fans is reduced.

Description

technical field [0001] The invention relates to the field of multi-arch tunnels, in particular to an anti-crosswind structure at the entrance of a high-speed multi-arch tunnel in mountainous areas. Background technique [0002] In recent years, more and more mountain roads have been planned and constructed, and more and more tunnels have been planned and constructed. In mountainous areas, bridges connect to tunnels and bridges extend into tunnels abound. The special topography and landform conditions of the mountainous area determine the form of the bridge. When the bridge outside the tunnel is a whole structure, the tunnel must be set up as a double-arch tunnel, and the distance between the left and right openings is very small, and they are on the same section. Cars driving at high speed drive out of the tunnel with dirty air. If no measures are taken, the wind from the left and right tunnels will flow together, causing the dirty air just out of the tunnel to be immediate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/14
CPCE21D9/14
Inventor 袁松张生雷良
Owner 四川省交通勘察设计研究院有限公司