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Ventilation and rescue system suitable for mountain area highway tunnel group and construction method

A technology for road tunnels and mountainous areas, applied in the field of road tunnel operation ventilation, can solve the problems of high cost investment, high construction risk, and large project scale, and achieve the effects of low project risk, small operation and maintenance costs, and small project scale

Pending Publication Date: 2020-04-17
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

But both have the characteristics of large project scale, high construction risk and high cost investment

Method used

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  • Ventilation and rescue system suitable for mountain area highway tunnel group and construction method
  • Ventilation and rescue system suitable for mountain area highway tunnel group and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 , figure 2 as shown, figure 2 The arrow in the middle tunnel represents the way the car travels, and the arrows in the exhaust duct 4 and the air supply duct represent the wind direction.

[0042] It is suitable for the ventilation and rescue system of mountain road tunnel group, including platform bridge 3, air exhaust channel 4 and air supply channel 5;

[0043] The platform bridge 3 is used to communicate with the main line bridges 2 on both sides. The upper end surface of the platform bridge 3 is provided with a containment structure. The containment structure includes an upper space and a lower space. The lower space is used for traffic conversion and road rescue. Passage, the upper space is provided with a plurality of fans 6, the upper space also includes an equipment storage room 8, the equipment storage room 8 is used to install and place other equipment, specifically, the accommodating structure includes an inverted U-shaped structure , t...

Embodiment 2

[0049] Such as figure 1 , figure 2 As shown, this embodiment is based on Embodiment 1, and the exhaust duct 4 and the air supply duct 5 are both L-shaped structures, one end of the L-shaped structure communicates with the fan 6, and the other end communicates with the upstream tunnel 1 or the downstream tunnel 9 Communication; the installation height of the fan 6 is greater than or equal to the top of the upstream tunnel 1 or the downstream tunnel 9; the exhaust duct 4 and the air supply duct 5 communicate with the ventilation holes arranged on the side walls of the upstream tunnel 1 or the downstream tunnel 9.

[0050] In this embodiment, the shorter end of the L-shaped structure communicates with the upstream tunnel 1 or the downstream tunnel 9 to ensure that the arrangement of the exhaust duct 4 and the air supply duct 5 will not affect the normal use of the upstream tunnel 1 or the downstream tunnel 9 . At the same time, the setting of this embodiment is more conducive t...

Embodiment 3

[0052] Such as figure 1 , figure 2 As shown, this embodiment is based on embodiment 1 or embodiment 2, and the angle between the platform bridge 3 and the main line bridge 2 is greater than 90° or less than 90°, that is, the platform bridge 3 and the main line bridge 2 are non-perpendicular It is arranged to facilitate the steering of the vehicle from the main line bridge 2 to the platform bridge 3.

[0053] A method for constructing a ventilation and rescue system suitable for mountain road tunnel groups described in any one of embodiment 1-embodiment 3, comprising the following steps:

[0054] 1), build a platform bridge 3 between the main line bridges 2 on both sides, and connect the left line and the right line as a whole;

[0055] 2), a containment structure is arranged on the upper surface of the platform bridge 3, the containment structure includes an upper space and a lower space, the lower space is used for traffic conversion and road rescue, and the upper space is p...

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Abstract

The invention discloses a ventilation and rescue system suitable for a mountain area highway tunnel group and a construction method. The ventilation and rescue system involves a platform bridge, an exhaust duct and a delivery duct, wherein the platform bridge is used for communicating main line bridges on the two sides, an accommodating structure is arranged on the upper end surface of the platform bridge, the accommodating structure comprises an upper-layer space and a lower-layer space, the lower-layer space is used for traffic conversion and road rescue passage, and the upper-layer space isprovided with a plurality of fans; the exhaust duct is used for communicating the fans and an upstream tunnel; and the delivery duct is used for communicating the fans and a downstream tunnel. According to the ventilation and rescue system, the problem that an underground fan room, an in-hole traffic conversion belt, the upstream tunnel and the downstream tunnel are arranged, so that polluted airstreams is avoided, tunnel ventilation and rescue can be achieved, and the system has the advantages of being small in engineering scale, small in construction risk and low in cost investment at thesame time.

Description

technical field [0001] The invention relates to the technical field of road tunnel operation ventilation, in particular to a ventilation and rescue system and a construction method suitable for road tunnel groups in mountainous areas. Background technique [0002] When the car passes through the tunnel, it will continuously emit exhaust gas into the tunnel. When the tunnel is relatively short, due to the influence of natural wind and traffic wind, the exhaust gas will not accumulate too high in the tunnel; when the tunnel length is long, the exhaust gas will accumulate in the tunnel, and when the concentration of exhaust gas reaches a certain level, it will affect human health. Comfort, reduced visibility inside the cave. [0003] Longitudinal segmental mechanical ventilation by setting up fan rooms for segmental air supply and exhaust is currently the most used way to solve the above problems in long highway tunnels. The fan rooms are divided into underground fan rooms and...

Claims

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Application Information

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IPC IPC(8): E21F1/08E21F11/00
CPCE21F1/003E21F1/08E21F11/00
Inventor 冉龙洲袁松廖沛源
Owner 四川省交通勘察设计研究院有限公司
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