A highway tunnel smoke exhaust tunnel and underground fan room structure

Abstract

The present invention discloses a highway tunnel smoke exhaust tunnel and underground fan room structure, including a left-line smoke exhaust tunnel and a right-line smoke exhaust tunnel. The right-line smoke exhaust tunnel crosses the section between the left-line main tunnel and the right-line main tunnel and the left-line main tunnel and then intersects with the left-line smoke exhaust tunnel at 45 degrees to form a smoke exhaust tunnel. A smoke exhaust fan is arranged in one end of the smoke exhaust tunnel near the intersection of the left-line smoke exhaust tunnel and the right-line smoke exhaust tunnel. The cross-section is divided into two upper and lower caverns by a horizontal partition flush with the top surface of the left-line main tunnel. The upper cavern serves as a smoke exhaust channel, and the part of the lower cavern located in the section serves as a fan control room. The smoke exhaust tunnel and underground fan room structure of the present invention change the traditional way of the right-line smoke exhaust tunnel crossing the left-line main tunnel, utilize the section of the main tunnel itself, and adopt the structure of the right-line smoke exhaust tunnel directly crossing the sections of the left and right main tunnels, thereby reducing the construction difficulty. At the same time, the smoke exhaust fan is arranged in the smoke exhaust tunnel, and there is no need to separately raise and build an underground fan room, so the cost is low.

Description

Technical Field

[0001] The invention relates to the field of highway tunnels, and in particular to a highway tunnel smoke exhaust tunnel and an underground fan room structure. Background Art

[0002] According to current regulations, one-way traffic tunnels usually use longitudinal smoke exhaust. The direction of smoke exhaust in the tunnel should be the same as the driving direction of the tunnel. Smoke should be discharged from the tunnel exit or the nearest smoke outlet. The maximum travel of fire smoke in the tunnel should not be greater than 5000m. For highway tunnels with small traffic volume in mountainous areas, when the tunnel length is greater than 5000m and the requirements of segmented ventilation are not met, a dedicated smoke exhaust tunnel should be set up. The dedicated smoke exhaust tunnel needs to be equipped with a dedicated fan, and usually a ground fan room needs to be set up. When the terrain conditions are limited, an underground fan room needs to be set up.

[0003] Conventional underground fan rooms are independent caverns with large cavern areas, high internal spaces, and portal rails for easy fan installation. According to fire protection requirements, it is necessary to divide the area into fire zones and set at least two fire doors. At the same time, the smoke exhaust tunnel on the right tunnel needs to cross over the left tunnel, so the longitudinal slope often reaches 40%, making construction difficult. Moreover, the cost of conventional underground fan rooms and smoke exhaust tunnels is particularly high. A standard underground fan room costs tens of millions or even hundreds of millions of yuan, with high construction risks and inconvenient later maintenance. Summary of the invention

[0004] In order to solve the above-mentioned problems, the present invention provides a highway tunnel smoke exhaust cross-tunnel and underground fan room structure, which changes the traditional way of the right-line smoke exhaust cross-tunnel crossing the left-line main tunnel, utilizes the cross-section of the main tunnel itself, and adopts a structure in which the right-line smoke exhaust cross-tunnel directly crosses the cross-sections of the left and right main tunnels, thereby reducing the construction difficulty. At the same time, the smoke exhaust fan is arranged in the smoke exhaust cross-tunnel, and there is no need to separately raise and build a fan room, so the cost is low.

[0005] The present invention is achieved through the following technical solutions:

[0006] The present invention discloses a highway tunnel smoke exhaust transverse tunnel and underground fan room structure, comprising a left-line smoke exhaust transverse tunnel connected with a left-line main tunnel and a right-line smoke exhaust transverse tunnel connected with a right-line main tunnel, the right-line smoke exhaust transverse tunnel crosses the section between the left-line main tunnel and the right-line main tunnel and the left-line main tunnel and intersects with the left-line smoke exhaust transverse tunnel at 45 degrees, and the right-line smoke exhaust transverse tunnel and the left-line smoke exhaust transverse tunnel intersect to form a smoke exhaust transverse tunnel, a smoke exhaust fan is arranged in one end of the smoke exhaust transverse tunnel near the intersection of the left-line smoke exhaust transverse tunnel and the right-line smoke exhaust transverse tunnel, the road surface elevations of the right-line smoke exhaust transverse tunnel and the left-line smoke exhaust transverse tunnel are flush with the road surface elevations of the left-line main tunnel and the right-line main tunnel, the cross-section in the right-line smoke exhaust transverse tunnel and the cross-section of the left-line main tunnel are divided into upper and lower caverns by a horizontal partition flush with the top surface of the left-line main tunnel, the upper cavern serves as a smoke exhaust passage, and the part of the lower cavern located in the section serves as a fan control room.

[0007] The smoke exhaust horizontal tunnel and underground fan room structure of the present invention change the traditional way of having the right-line smoke exhaust horizontal tunnel cross over the left-line main tunnel, utilize the cross-section of the main tunnel itself, and adopt a structure in which the right-line smoke exhaust horizontal tunnel directly crosses the cross-sections of the left and right main tunnels, thereby reducing the construction difficulty. At the same time, the smoke exhaust fan is arranged in the smoke exhaust horizontal tunnel, and there is no need to separately raise and build an underground fan room, which has a low cost.

[0008] The left-line smoke exhaust transverse tunnel and the right-line smoke exhaust transverse tunnel of the present invention are both built along the cross-section of the tunnel main tunnel itself. The right-line smoke exhaust transverse tunnel directly crosses the left-line main tunnel from the right-line main tunnel and merges with the right-line smoke exhaust transverse tunnel, which solves the problem of great construction difficulty caused by the high slope of the left-line main tunnel crossed by the right-line smoke exhaust transverse tunnel. The road surface elevations of the right-line smoke exhaust transverse tunnel and the left-line smoke exhaust transverse tunnel are flush with the road surface elevations of the left-line main tunnel and the right-line main tunnel, which facilitates construction.

[0009] The smoke exhaust cross tunnel utilizes the cross-sectional space of the left-line main tunnel to arrange the smoke exhaust fan, and does not require a separate elevated space for placement. At the same time, the cross section between the left and right main tunnels is divided into two layers, which serve as a smoke exhaust passage and a fan control room respectively, simplifying the layout of the underground fan room in the tunnel. Moreover, the left-line smoke exhaust cross tunnel can serve as a smoke exhaust passage for the left-line main tunnel and a transportation passage for the fan, changing the situation where a separate transportation passage is required for the traditional structure. Not only is the construction very simple, the construction risk is small, the cost is low, and social resources are saved, but the subsequent operation and management are also very convenient. When replacing the fan, the transport vehicle can be directly driven to the fan for loading and unloading.

[0010] Isolation doors are installed at the junction of the right-line smoke exhaust tunnel, the left-line main tunnel and the side wall of the right-line main tunnel, which not only ensures the isolation between the right-line smoke exhaust tunnel and the left-line main tunnel under normal use, but also facilitates entry into the various sections of the right-line smoke exhaust tunnel.

[0011] The intersection of the left-line main tunnel and the left-line smoke exhaust cross tunnel is set in the parking lane, which is convenient for the construction of the smoke exhaust cross channel and the operation and management of the smoke exhaust cross tunnel.

[0012] A right-line fire door is installed in the right-line smoke exhaust horizontal tunnel at the intersection of the left-line smoke exhaust horizontal tunnel and the right-line smoke exhaust horizontal tunnel. A left-line fire door is installed at the intersection of the left-line smoke exhaust horizontal tunnel and the side wall of the left-line main tunnel. The fire door is a fireproof rolling shutter door, and the activation modes include automatic, manual and mechanical activation in emergency situations. When a fire occurs in the left tunnel, the right-line fire door is closed, and when a fire occurs in the right tunnel, the left-line fire door is closed to prevent smoke from spreading to another main tunnel through the horizontal tunnel.

[0013] The smoke exhaust fan includes two axial flow fans, which changes the traditional situation that the left and right lines use their own smoke exhaust fans, and can reduce the number of fans and the floor space occupied.

[0014] The same inner contour structure as the left-line main tunnel and the right-line main tunnel is used from the left-line smoke exhaust tunnel to the placement of the smoke exhaust fan in the smoke exhaust tunnel. In this way, the main tunnel lining trolley can be directly used during the construction of this section, and the template no longer needs to be customized separately, which can speed up the construction progress and save social resources.

[0015] The left-line smoke exhaust tunnel is coaxial with the smoke exhaust tunnel, which makes it convenient to transport the fan to the smoke exhaust tunnel.

[0016] The cross section of the smoke exhaust tunnel from the placement of the smoke exhaust fan to the discharge hole adopts a linear gradient to gradually decrease. The cross section of the smoke exhaust tunnel discharge hole is very small, generally only 20m 2 Just left or right.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] 1. The present invention provides a highway tunnel smoke exhaust horizontal tunnel and underground fan room structure, which changes the traditional way of the right-line smoke exhaust horizontal tunnel crossing the left-line main tunnel, and uses the cross section of the main tunnel itself, and adopts a structure in which the right-line smoke exhaust horizontal tunnel directly crosses the cross sections of the left and right main tunnels, thereby reducing the construction difficulty. At the same time, the smoke exhaust fan is arranged in the smoke exhaust horizontal tunnel, and there is no need to separately raise and build an underground fan room, which has a low cost;

[0019] 2. The present invention provides a highway tunnel smoke exhaust horizontal tunnel and underground fan room structure. The left-line smoke exhaust horizontal tunnel and the right-line smoke exhaust horizontal tunnel are both constructed along the cross section of the tunnel main tunnel itself. The right-line smoke exhaust horizontal tunnel directly crosses the left-line main tunnel from the right-line main tunnel and joins the right-line smoke exhaust horizontal tunnel, thereby solving the problem of great construction difficulty caused by the high slope of the left-line main tunnel being crossed by the right-line smoke exhaust horizontal tunnel. The road surface elevations of the right-line smoke exhaust horizontal tunnel and the left-line smoke exhaust horizontal tunnel are flush with the road surface elevations of the left-line main tunnel and the right-line main tunnel, thereby facilitating construction.

[0020] 3. The present invention provides a highway tunnel smoke exhaust tunnel and underground fan room structure. The smoke exhaust tunnel utilizes the cross-sectional space of the left-line main tunnel to arrange the smoke exhaust fan, and does not require a separate elevated space for placement. At the same time, the cross section between the left and right main tunnels is divided into an upper and lower layer, which serve as a smoke exhaust passage and a fan control room respectively, thereby simplifying the arrangement of the tunnel underground fan room. In addition, the left-line smoke exhaust tunnel can serve as a smoke exhaust passage for the left-line main tunnel and also as a transportation passage for the fan, thereby changing the situation in which the traditional structure requires a separate transportation passage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0022] Figure 1 It is a schematic diagram of the structure plane of the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the cross section of AA.

[0024] Marks and corresponding parts names in the attached drawings:

[0025] 1-left line main tunnel, 2-left line smoke exhaust transverse tunnel, 3-right line main tunnel, 4-right line smoke exhaust transverse tunnel, 5-section, 6-smoke exhaust transverse tunnel, 7-crossing section, 8-horizontal partition, 9-fan control room, 10-smoke exhaust fan, 11-isolation door, 12-right line fire door, 13-left line fire door. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0027] Example 1

[0028] like Figure 1 and 2 As shown, a highway tunnel smoke exhaust tunnel and underground fan room structure of the present invention comprises a left-line smoke exhaust tunnel 2 connected to a left-line main tunnel 1 and a right-line smoke exhaust tunnel 4 connected to a right-line main tunnel 3. The right-line smoke exhaust tunnel 4 crosses a section 5 between the left-line main tunnel 1 and the right-line main tunnel 3 and intersects with the left-line smoke exhaust tunnel 2 at a 45° angle after crossing the left-line main tunnel 1. The right-line smoke exhaust tunnel 4 and the left-line smoke exhaust tunnel 2 intersect to form a smoke exhaust tunnel 6. The smoke exhaust tunnel 6 is close to the left-line main tunnel 1. A smoke exhaust fan 10 is arranged at one end of the intersection of the smoke exhaust transverse tunnel 3 and the right-line smoke exhaust transverse tunnel 4. The road surface elevations of the right-line smoke exhaust transverse tunnel 4 and the left-line smoke exhaust transverse tunnel 2 are flush with the road surface elevations of the left-line main tunnel 1 and the right-line main tunnel 3. The cross-section 5 in the right-line smoke exhaust transverse tunnel 4 and the cross-section 7 of the left-line main tunnel 1 are divided into two upper and lower caverns by a horizontal partition 8 flush with the top surface of the left-line main tunnel 1. The upper cavern serves as a smoke exhaust channel, and the part of the lower cavern located in the section 5 serves as a fan control room 9.

[0029] The smoke exhaust horizontal tunnel and underground fan room structure of the present invention change the traditional way of having the right-line smoke exhaust horizontal tunnel cross over the left-line main tunnel, utilize the cross-section of the main tunnel itself, and adopt a structure in which the right-line smoke exhaust horizontal tunnel directly crosses the cross-sections of the left and right main tunnels, thereby reducing the construction difficulty. At the same time, the smoke exhaust fan is arranged in the smoke exhaust horizontal tunnel, and there is no need to separately raise and build an underground fan room, which has a low cost.

[0030] The left-line smoke exhaust transverse tunnel and the right-line smoke exhaust transverse tunnel of the present invention are both built along the cross-section of the tunnel main tunnel itself. The right-line smoke exhaust transverse tunnel directly crosses the left-line main tunnel from the right-line main tunnel and merges with the right-line smoke exhaust transverse tunnel, which solves the problem of great construction difficulty caused by the high slope of the left-line main tunnel crossed by the right-line smoke exhaust transverse tunnel. The road surface elevations of the right-line smoke exhaust transverse tunnel and the left-line smoke exhaust transverse tunnel are flush with the road surface elevations of the left-line main tunnel and the right-line main tunnel, which facilitates construction.

[0031] The smoke exhaust cross tunnel utilizes the cross-sectional space of the left-line main tunnel to arrange the smoke exhaust fan, and does not require a separate elevated space for placement. At the same time, the cross section between the left and right main tunnels is divided into two layers, which serve as a smoke exhaust passage and a fan control room respectively, simplifying the layout of the underground fan room in the tunnel. Moreover, the left-line smoke exhaust cross tunnel can serve as a smoke exhaust passage for the left-line main tunnel and a transportation passage for the fan, changing the situation where a separate transportation passage is required for the traditional structure. Not only is the construction very simple, the construction risk is small, the cost is low, and social resources are saved, but the subsequent operation and management are also very convenient. When replacing the fan, the transport vehicle can be directly driven to the fan for loading and unloading.

[0032] Preferably, isolation doors 11 are installed at the intersections of the right-line smoke exhaust transverse tunnel, the left-line main tunnel and the side walls of the right-line main tunnel, which not only ensures the isolation between the right-line smoke exhaust transverse tunnel and the left-line main tunnel under normal use, but also facilitates entry into each section of the right-line smoke exhaust transverse tunnel.

[0033] Preferably, the intersection of the left-line main tunnel and the left-line smoke exhaust cross tunnel is set in the parking lane, which is convenient for the construction of the smoke exhaust cross channel and the operation and management of the smoke exhaust cross tunnel.

[0034] Preferably, a right-line fire door 12 is arranged in the right-line smoke exhaust horizontal tunnel at the intersection of the left-line smoke exhaust horizontal tunnel and the right-line smoke exhaust horizontal tunnel, and a left-line fire door 13 is arranged at the intersection of the left-line smoke exhaust horizontal tunnel and the side wall of the left-line main tunnel. The fire door is a fire shutter door, and the activation modes include automatic, manual and mechanical activation in emergency situations. When a fire occurs in the left tunnel, the right-line fire door is closed, and when a fire occurs in the right tunnel, the left-line fire door is closed to prevent smoke from spreading to another main tunnel through the horizontal tunnel.

[0035] Preferably, the smoke exhaust fan includes two axial flow fans, which changes the traditional situation in which the left and right lines use their own smoke exhaust fans, thereby reducing the number of fans and the floor space occupied.

[0036] Preferably, the same inner contour structure as that of the left-line main tunnel and the right-line main tunnel is adopted from the left-line smoke exhaust cross tunnel to the placement of the smoke exhaust fan in the smoke exhaust cross tunnel. In this way, the main tunnel lining trolley can be directly used during the construction of this section, and the template is no longer customized separately, which can speed up the construction progress and save social resources.

[0037] Preferably, the left-line smoke exhaust transverse tunnel is coaxial with the smoke exhaust transverse tunnel, so that it is convenient to transport the fan to the smoke exhaust transverse tunnel.

[0038] Preferably, the cross section of the smoke exhaust tunnel from the placement of the smoke exhaust fan to the discharge hole is gradually reduced in a linear gradient, and the cross section of the smoke exhaust tunnel discharge hole is very small, generally only 20m 2 Just left or right.

[0039] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A highway tunnel smoke exhaust tunnel and underground fan room structure, comprising a left-line smoke exhaust tunnel (2) connected to a left-line main tunnel (1) and a right-line smoke exhaust tunnel (4) connected to a right-line main tunnel (3), characterized in that: The right-line smoke exhaust transverse tunnel (4) crosses the section (5) between the left-line main tunnel (1) and the right-line main tunnel (3) and the left-line main tunnel (1), and then intersects with the left-line smoke exhaust transverse tunnel (2) at a 45-degree angle. After the right-line smoke exhaust transverse tunnel (4) and the left-line smoke exhaust transverse tunnel (2) intersect, a smoke exhaust transverse tunnel (6) is formed. A smoke exhaust fan (10) is arranged in one end of the smoke exhaust transverse tunnel (6) near the intersection of the left-line smoke exhaust transverse tunnel (3) and the right-line smoke exhaust transverse tunnel (4). The road surface elevations of the right-line smoke exhaust transverse tunnel (4) and the left-line smoke exhaust transverse tunnel (2) are the same as those of the left-line main tunnel (1) and the right-line main tunnel ( 3), the cross section (5) in the right-line smoke exhaust horizontal tunnel (4) and the cross section (7) of the left-line main tunnel (1) are divided into two upper and lower caverns by a horizontal partition (8) that is flush with the top surface of the left-line main tunnel (1), the upper cavern serves as a smoke exhaust passage, and the part of the lower cavern located in the section (5) serves as a fan control room (9); isolation doors (11) are installed at the intersections of the right-line smoke exhaust horizontal tunnel (4) and the side walls of the left-line main tunnel (1) and the right-line main tunnel (3); and the intersection of the left-line main tunnel (1) and the left-line smoke exhaust horizontal tunnel (2) is set in the parking strip.

2. A highway tunnel smoke exhaust tunnel and underground fan room structure according to claim 1, characterized in that: A right-line fire door (12) is arranged in the right-line smoke exhaust horizontal tunnel (4) at the intersection of the left-line smoke exhaust horizontal tunnel (3) and the right-line smoke exhaust horizontal tunnel (4), and a left-line fire door (13) is arranged at the intersection of the left-line smoke exhaust horizontal tunnel (2) and the side wall of the left-line main tunnel (1).

3. A highway tunnel smoke exhaust tunnel and underground fan room structure according to claim 1, characterized in that: The smoke exhaust fan (10) comprises two axial flow fans.

4. A highway tunnel smoke exhaust tunnel and underground fan room structure according to claim 1, characterized in that: The places where the smoke exhaust fans (10) are placed in the left-line smoke exhaust transverse tunnel (2) to the smoke exhaust transverse tunnel (6) all adopt the same inner contour structure as the left-line main tunnel (1) and the right-line main tunnel (3).

5. A highway tunnel smoke exhaust tunnel and underground fan room structure according to claim 1, characterized in that: The left-line smoke exhaust transverse hole (2) is coaxial with the smoke exhaust transverse hole (6).

6. A highway tunnel smoke exhaust tunnel and underground fan room structure according to claim 1, characterized in that: The cross section of the smoke exhaust horizontal tunnel (6) from the location where the smoke exhaust fan (10) is placed to the discharge hole opening is gradually reduced in a linear gradient.

Images