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Mechanical dispersion air-discharge method for road tunnel

A technology of road tunnels and mechanical dispersion, applied in mine/tunnel ventilation, earth-moving drilling, mining equipment, etc., can solve problems such as difficulty in selecting well locations, and achieve the goal of enriching emission methods, reducing impacts and improving feasibility. Effect

Active Publication Date: 2009-10-07
SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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Problems solved by technology

[0003] In the site selection of the exhaust shaft at the exit section of the tunnel, especially in the city, it is often restricted by various conditions, such as landscape, strong opposition from residents, planning and other reasons, it is difficult to select a suitable well location

Method used

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  • Mechanical dispersion air-discharge method for road tunnel

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Embodiment Construction

[0015] 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:

[0016] Such as figure 1 As shown, the labels respectively represent: uplink tunnel 1, downlink tunnel 2, tunnel side wall 3, tunnel side wall 4, air duct: U1, U2, U3, U4, U5, D1, D2, D3, D4, D5.

[0017] Such as figure 1 As shown, the road tunnel is a two-hole one-way road tunnel, including an uplink tunnel 1 and a downlink tunnel 2. In this embodiment, the part extending inward from the exit of the tunnel is called the tunnel exit section. For the uplink tunnel 1 and the downlink tunnel 2, the exit sections are respectively located at both ends of the tunnel.

[0018] In the upward tunnel 1, the tunnel air is affected by the piston action of the vehicle, and flows from the entrance to the exit of the upward tunnel 1. Fresh air f...

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Abstract

The invention relates to a mechanical dispersion air-discharge method for road tunnel belonging to the road tunnel ventilation field. The method comprises: forming a plurality of wind channels on the top or side wall of road tunnel; then mounting independent blower fan in each wind channel which can rotate to discharge the waste gas in the tunnel by the through the wind channel. The invention has the following advantages: solves the problem of centralized air-discharge well construction in road tunnel (especially city tunnel); dispersing the tunnel exhaust to reduce the influence to environment; enriches tunnel exhaust gas exhausting manners, and improves the tunnel construction feasibility of the section difficult for building wind well.

Description

technical field [0001] The invention relates to road tunnel ventilation, in particular to a method for mechanically dispersing wind in a road tunnel. Background technique [0002] In the road tunnel, the driving vehicles will continuously emit harmful exhaust gas and smoke. When the concentration of harmful exhaust gas and smoke exceeds a certain value, it will bring harm to the drivers and passengers, affecting their health and driving safety. Therefore, in order to ensure the hygienic standard of the air environment required for the normal operation of the tunnel, the tunnel should be ventilated. Because the tunnel concentrates a certain length of automobile exhaust, when there are residents at the tunnel entrance, the tunnel exhaust gas is not allowed to be discharged concentratedly at the tunnel entrance. Therefore, urban tunnels are equipped with centralized waste gas discharge air shafts at the entrance of the cave, so that most of the exhaust gas of the tunnel can be...

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Application Information

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IPC IPC(8): E21F1/00E21F1/08
Inventor 奚峰蒋卫艇郑晋丽汪雄平沈哲强
Owner SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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