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Double-line tunnel smoke exhaust rescue system and construction method

A double-track tunnel and tunnel technology, which is applied in mine/tunnel ventilation, tunnel, earthwork drilling and mining, etc., can solve the problems of long tunnel construction period and difficult construction of smoke exhaust system, so as to reduce the construction scale and difficulty, The effect of reducing construction risk and reducing construction difficulty

Pending Publication Date: 2020-11-10
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

[0006] In order to solve the technical problems of long construction period of traditional tunnels and difficult construction of smoke exhaust system, the present invention provides a smoke exhaust rescue system and construction method for double-lane tunnels

Method used

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  • Double-line tunnel smoke exhaust rescue system and construction method
  • Double-line tunnel smoke exhaust rescue system and construction method
  • Double-line tunnel smoke exhaust rescue system and construction method

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0044] Such as Figure 3 ~ Figure 5 As shown, the smoke exhaust rescue system for a double-lane tunnel of the present invention includes a left-line tunnel 11 and a right-line tunnel 12 parallel to each other for vehicle passage, and is used to discharge smoke in the left-line tunnel 11 and the right-line tunnel 12. The smoke exhaust horizontal hole and the fan 4, the smoke exhaust horizontal hole includes: a connecting section 21, which is horizontally arranged between the left-line tunnel 11 and the right-line tunnel 12, and communicates with the left-line tunnel 11 and the right-line tunnel 12, with It is used to exhaust the smoke in the left-line tunnel 12; the smoke exhaust section 24 is arranged at the same level as the connecting section 21, one end communicates with the right-line tunnel 12, and the other end is arranged with a smoke exhaust port that communicates with the outside world for exhausting the left-line tunnel 11 and the flue gas in the right-hand tunnel 12...

Embodiment 2

[0049] Such as Figure 3 ~ Figure 5 As shown, a construction method of a double-line tunnel smoke exhaust rescue system of the present invention is used for the double-line tunnel smoke exhaust rescue system of construction embodiment one, comprising the following steps:

[0050] S1, according to the layout direction of the left-line tunnel 11, construct the smoke exhaust section 24 of the smoke exhaust horizontal tunnel from the direction perpendicular to the left-line tunnel 11, and carry out primary support and secondary lining to the smoke exhaust section 24;

[0051] S2, continue to excavate the smoke exhaust horizontal tunnel, the gradual change section 22 and the expansion section 23 of the construction smoke exhaust horizontal tunnel, and carry out initial support and secondary lining to the gradual change section 22 and the expansion section 23;

[0052] S3, continue to excavate the smoke exhaust horizontal tunnel, the connection section 21 of the construction smoke e...

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Abstract

The invention discloses a double-line tunnel smoke exhaust rescue system and a construction method. The smoke exhaust rescue system comprises a left-line tunnel, a right-line tunnel, a smoke exhaust transverse hole and a fan, the smoke exhaust transverse hole comprises a connecting section and a smoke exhaust section, and the connecting section is horizontally arranged between the left-line tunneland the right-line tunnel; and the smoke exhaust section and the connecting section are horizontally arranged, one end of the smoke exhaust section is communicated with the right-line tunnel, and a smoke exhaust port communicated with the outside is formed in the other end of the smoke exhaust section. The construction method of the double-line tunnel smoke exhaust rescue system comprises the following steps of constructing the smoke exhaust section, constructing a transition section and an expansion section, constructing the connecting section and constructing the left-line tunnel and the right-line tunnel in a two-way manner. According to the double-line tunnel smoke exhaust rescue system and the construction method, the smoke exhaust transverse hole has three functions of double-line tunnel smoke exhaust, contact rescue and tunnel construction, the functions are powerful, the construction difficulty is greatly reduced, the construction period is greatly shortened, multiple functions of the smoke exhaust transverse hole in the tunnel construction period and the tunnel operation period are brought into full play, and important economic values are achieved.

Description

technical field [0001] The invention relates to the technical field of road tunnels, in particular to a smoke exhaust rescue system and a construction method for a double-lane tunnel. 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 concentration of exhaust gas in the tunnel is not high, and it will drift with the wind over time; when the tunnel is long, the exhaust gas will accumulate in the tunnel, and the concentration of exhaust gas will reach a certain level. , it will affect people's comfort and reduce the visibility in the tunnel. At the same time, motor vehicles may have fires and other accidents in the highway tunnel and emit dense smoke. The smoke concentration in the tunnel is high, and it needs to be discharged out of the tunnel as soon as possible. At present, the relevant regulations of hig...

Claims

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Application Information

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IPC IPC(8): E21F1/00E21F1/04E21F1/08E21F17/103E21F11/00E21F17/18E21D9/14E21D9/00
CPCE21D9/00E21D9/14E21F1/003E21F1/04E21F1/08E21F11/00E21F17/103E21F17/18
Inventor 袁松冉龙洲郑国强
Owner 四川省交通勘察设计研究院有限公司