Single-hole two-way special highway tunnel capable of exhausting smoke in full longitudinal direction

Abstract

The utility model discloses a single-hole two-way special highway tunnel capable of exhausting smoke in a full longitudinal direction, which is characterized in that two partition walls which are vertically arranged are arranged in a lower-layer space at intervals along the width direction of the tunnel, are arranged along the length direction of the tunnel and are connected with the bottom wall of the tunnel and a lane plate to form an escape channel; the escape passage is communicated with the upper-layer space through a plurality of communication assemblies, a first fan assembly for supplying air to the middle of the upper-layer space is arranged in the upper-layer space, a second fan assembly for supplying air to the middle of the escape passage is arranged in the escape passage, and an air supply assembly for supplying air to the escape passage is arranged outside the tunnel. Smoke in the vehicle tunnel can be exhausted through the first fan assembly, and air circulation and pressure in the escape channel can be kept through the second fan assembly, so that when the length of the tunnel is larger than 3 KM and smaller than 10 KM, under the condition that a vertical shaft or an inclined shaft or a parallel pilot tunnel is not arranged, the escape channel can be opened and closed, and the escape channel can be opened and closed. And the safety of people during escape can still be effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of highway tunnels, in particular to a single-hole bidirectional special highway tunnel with full longitudinal smoke exhaust. Background Art

[0002] At present, in order to meet the requirements of ventilation, smoke exhaust and disaster prevention and rescue, the single-hole two-way long highway tunnels with a length of more than 3 km at home and abroad mainly adopt parallel guide tunnels, segmented longitudinal ventilation, or full transverse or semi-transverse ventilation with exhaust ducts (the longitudinal direction of the tunnel is the direction of the tunnel, and the transverse direction is the direction perpendicular to the longitudinal direction of the tunnel, that is, the direction from left to right on the cross-section diagram of the tunnel drawing) for smoke exhaust and disaster prevention and rescue. Common single-hole two-way long highway tunnels have the following disadvantages:

[0003] 1. The existing parallel guide tunnels, segmented longitudinal ventilation, or transverse ventilation, smoke exhaust and disaster prevention and rescue modes are mainly aimed at the requirements of social traffic tunnels, which are inconsistent with the characteristics of small traffic volume and independent operation and management of dedicated highway traffic tunnels, and are likely to lead to "a big horse pulling a small cart", which is not conducive to energy saving.

[0004] 2. The parallel pilot tunnel is arranged parallel to the main tunnel, which requires a long construction period and large investment.

[0005] 3. Segmented longitudinal ventilation requires the installation of inclined shafts or vertical shafts, which requires large investments. In areas with strict environmental protection, inclined shafts or vertical shafts cannot be installed.

[0006] 4. Axial flow fans are only installed at two sections of the escape passage to pressurize and supply air to the escape passage. In case of fire, there is often no wind in the middle of the long escape passage, which is not conducive to maintaining positive pressure in the escape passage and cannot ensure the safe escape of personnel.

[0007] A Chinese invention patent discloses an escape and rescue structure for a single-hole two-way traffic highway tunnel, with application number 201610707871.6. The patent discloses a tunnel provided with a roadbed, wherein the roadbed divides the internal space of the tunnel into an upper space and a lower space, wherein the upper space is a driving passage for driving; the lower space is provided with an evacuation and rescue passage arranged along the extension direction of the tunnel, wherein the evacuation and rescue passage is enclosed by a partition wall, wherein the driving passage and the evacuation and rescue passage are connected through an evacuation staircase, wherein the entrance of the evacuation staircase is arranged on one lateral side of the driving passage, and the exit is arranged on one lateral side of the evacuation and rescue passage. The patent is applicable to road tunnels for social vehicles to travel, and when the tunnel length exceeds 3 km, a vertical shaft, an inclined shaft or a parallel guide tunnel needs to be arranged to meet the requirements of disaster prevention and rescue. The above patent does not match the characteristics of a dedicated highway tunnel, and the above patent makes improvements for the above shortcomings, but the above patent lacks targeted improvements for smoke exhaust and pressurization in the tunnel, thereby causing potential safety hazards to people escaping in the escape passage when the tunnel length is greater than 3 km and less than 10 km. Utility Model Content

[0008] (I) Purpose of the utility model

[0009] In order to solve the technical problems existing in the background technology, the utility model proposes a single-hole bidirectional special highway tunnel with full longitudinal smoke exhaust. The smoke in the vehicle tunnel can be removed by the first fan assembly, and the air circulation and pressure in the escape passage can be maintained by the second fan assembly, thereby preventing the smoke in the upper space from entering the escape passage, thereby providing a safe environment for the escape of personnel, and the air in the escape passage can also flow under the action of the air supply assembly and the second air supply assembly, so that the personnel will not suffer from hypoxia and the like during the escape process, so that when the length of the tunnel is greater than 3KM and less than 10KM, the safety of personnel during escape can still be effectively guaranteed without setting up a vertical shaft, an inclined shaft or a parallel guide tunnel.

[0010] (II) Technical solution

[0011] The utility model provides a single-hole bidirectional special highway tunnel with full longitudinal smoke exhaust, comprising a tunnel body provided with a lane plate, wherein a plurality of horizontally arranged lane plates are arranged in the tunnel body along its length direction, and the plurality of lane plates divide the internal space of the tunnel body into an upper space for vehicle passage and a lower space for escape along the up and down directions, and is characterized in that two vertically arranged partition walls are arranged in the lower space along the width direction of the tunnel body at intervals, the two partition walls are arranged along the length direction of the tunnel body and are connected with the bottom wall of the tunnel body and the lane plate to form an escape passage, the escape passage is connected with the upper space through a plurality of connecting components, a first fan component for supplying air to the middle part of the upper space is arranged in the upper space, a second fan component for supplying air to the middle part of the escape passage is arranged in the escape passage, and an air supply component for supplying air to the escape passage is arranged outside the tunnel body.

[0012] Preferably, the connecting component includes an evacuation door and a slide, a plurality of first openings are provided on the partition wall, and second openings equal in number and corresponding to the first openings are provided on the upper space, the first openings are connected to the corresponding second openings via a slide, and the first openings are each provided with an openable and closable evacuation door.

[0013] Preferably, the first fan assembly includes a plurality of first jet fans, and the plurality of first jet fans are arranged on the top of the tunnel body and spaced apart along the length direction thereof.

[0014] Preferably, the second fan assembly includes a plurality of second jet fans, and the plurality of second jet fans are arranged in the escape passage and spaced apart along the length direction thereof.

[0015] Preferably, the air supply assembly includes two pressurized air blowers, and the pressurized air blowers are respectively provided at both ends of the tunnel body, and the pressurized air blowers are connected to the interior of the escape passage through pipelines.

[0016] Preferably, a pipe gallery is provided in the lower space, and a third jet fan is provided in the pipe gallery.

[0017] Preferably, the upper space is provided with a down lane and an up lane respectively along the radial direction of the tunnel body, the second opening is located on a side of the down lane away from the up lane, and the first opening and the second opening are located on the same side.

[0018] Compared with the prior art, the above technical solution of the utility model has the following beneficial technical effects:

[0019] In the utility model, smoke in the vehicle tunnel body can be removed by the first fan assembly, and air circulation and pressure in the escape passage can be maintained by the second fan assembly, thereby preventing smoke in the upper space from entering the escape passage, thereby providing a safe environment for the escape of personnel, and the air in the escape passage can also flow under the action of the air supply assembly and the second air supply assembly, so that personnel will not suffer from hypoxia and the like during the escape process, so that when the length of the tunnel body is greater than 3KM and less than 10KM, the safety of personnel during escape can still be effectively guaranteed without setting up a vertical shaft, an inclined shaft or a parallel guide tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model provides a schematic diagram of the end structure of a single-hole bidirectional special highway tunnel with full longitudinal smoke exhaust.

[0021] Figure 2 The utility model provides a wind direction diagram of a single-hole bidirectional special highway tunnel with full longitudinal smoke exhaust and a fire point located in zone A.

[0022] Figure 3 A wind direction schematic diagram of a fire point located in zone B in a single-hole bidirectional special highway tunnel with full longitudinal smoke exhaust proposed by the utility model.

[0023] Figure 4 The utility model provides a wind direction schematic diagram of a single-hole bidirectional special highway tunnel with full longitudinal smoke exhaust and a fire point located in the middle.

[0024] Figure numerals: 1. tunnel; 2. driveway plate; 3. partition wall; 4. slide; 5. evacuation door; 6. first jet fan; 7. second jet fan; 8. pipe gallery; 9. third jet fan; 10. pressurized air blower. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0026] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, welding, riveting, bonding, etc., or a detachable connection, threaded connection, key connection, pin connection, etc., or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0028] like Figure 1-4 As shown, the utility model proposes a single-hole bidirectional special highway tunnel with full longitudinal smoke exhaust, comprising a tunnel body 1, wherein a plurality of horizontally arranged lane plates 2 are arranged in the tunnel body 1 along its length direction, and the plurality of lane plates 2 divide the internal space of the tunnel body 1 into an upper space for vehicle passage and a lower space for escape along the up and down directions, and two vertically arranged partition walls 3 are arranged in the lower space along the width direction of the tunnel body 1 at intervals, and the two partition walls 3 are arranged along the length direction of the tunnel body 1 and connected with the bottom wall of the tunnel body 1 and the lane plates 2 to form an escape passage, and the escape passage is connected with the upper space through a plurality of connecting components, and a first fan component responsible for ventilation and smoke exhaust in the middle of the upper space is arranged in the upper space, a second fan component for supplying air to the middle of the escape passage is arranged in the escape passage, and an air supply component for supplying air to the escape passage is arranged outside the tunnel body 1.

[0029] In the utility model, when an emergency such as a fire is needed, personnel can enter the escape passage in the lower space from the upper space through the connecting component to escape, and the upper space can be free of the need to add air ducts, air shafts and auxiliary tunnel body 1 through the first fan component, thereby reducing the impact on the environment, and the second fan component can keep air circulating in the escape passage and maintain the pressure in the escape passage, thereby preventing smoke from the upper space from entering the escape passage, thereby providing a safe environment for personnel to escape, and the air in the escape passage can also flow under the action of the air supply component and the second air supply component, so that personnel will not suffer from hypoxia and the like during the escape process, so that when the length of the tunnel body is greater than 3KM and less than 10KM, the safety of personnel during escape can still be effectively guaranteed without setting up a vertical shaft, inclined shaft or parallel guide tunnel.

[0030] In an optional embodiment, the connecting component includes an evacuation door 5 and a slide 4, the partition wall 3 is provided with a plurality of first openings, the upper space is provided with second openings equal in number to and corresponding to the first openings, the first openings are connected to the corresponding second openings via a slide 4, and the first openings are each provided with an openable and closable evacuation door 5. When escape is needed, the person can slide from the second opening of the upper space to the first opening through the slide 4, and open the evacuation door 5 to escape, and the evacuation door 5 can effectively prevent smoke in the upper space from entering the escape passage.

[0031] In an optional embodiment, the first fan assembly includes a plurality of first jet fans 6, which are arranged at the top of the tunnel body 1 and spaced apart along its length direction. The upper space can be ventilated by the plurality of first jet fans 6, and smoke exhaust operations can be performed on the upper space when a fire occurs by the plurality of first jet fans 6, and the first jet fans 6 can be selected as bidirectional jet fans.

[0032] In an optional embodiment, the second fan assembly includes a plurality of second jet fans 7, and the plurality of second jet fans 7 are arranged in the escape passage and spaced apart along the length direction thereof, and the escape passage can be ventilated by the plurality of second jet fans 7.

[0033] In an optional embodiment, the air supply assembly includes two pressurized air supply fans 10, and the two ends of the tunnel body 1 are respectively provided with the pressurized air supply fans 10, and the pressurized air supply fans 10 are connected to the inside of the escape passage through a pipeline. The pressurized air supply fan 10 extends into the escape passage to pressurize the escape passage, and under the relay of multiple second jet fans 7, the pressure gradient between the escape passage and the connecting assembly and the upper space is ensured, thereby preventing the smoke in the upper space from spreading to the escape space.

[0034] In an optional embodiment, a pipe gallery 8 is provided in the lower space, and a third jet fan 9 is provided in the pipe gallery 8. The third jet fan 9 can be used to ventilate the pipe gallery 8, thereby facilitating subsequent staff to repair the equipment in the pipe gallery 8.

[0035] In an optional embodiment, the upper space is provided with a down lane and an up lane respectively along the radial direction of the tunnel body 1, the second opening is located on the side of the down lane away from the up lane, the first opening and the second opening are located on the same side, and the first opening and the second opening are located on the same side so that people can easily enter the second opening from the first opening.

[0036] The tunnel body 1 is virtually divided into two equal areas AB along its length direction, with area A being the high end side of the tunnel body 1 and area B being the bottom end side of the tunnel body 1;

[0037] 1. When the fire point is in area A, vehicles are prohibited from entering the tunnel body 1. People in area B can quickly enter the lower escape passage. People in area A quickly drive out of the tunnel body 1 or abandon the car and enter the lower escape passage. Turn on several groups of jet fans installed on the top of the tunnel body 1 for vehicles in areas A and B to exhaust smoke. Fresh air is introduced from the opening of area B, and smoke is exhausted from the opening of area A. People in area B in the tunnel body 1 abandon the car and enter the lower escape passage. Since the traffic volume on the dedicated highway is very small, the traffic ventilation force is also very small, and it can be controlled independently, the two-way tunnel can be simplified to a one-way tunnel at this time. The length of the smoke travel in the carriageway is less than or equal to 5km, which can meet the requirement that the maximum travel of fire smoke in the one-way tunnel body 1 does not exceed 5km;

[0038] 2. When the fire point is in area B, the personnel in area A can quickly enter the lower escape passage, and the personnel in area B can quickly drive out of the tunnel body 1 or abandon the car and enter the lower escape passage. Turn on several groups of jet fans installed on the top of the tunnel body 1 of areas A and B to exhaust smoke. Fresh air is introduced from the opening of area A, and smoke is exhausted from the opening of area B. The personnel in area A in the tunnel body 1 abandon the car and enter the lower escape passage. Since the traffic volume on the dedicated highway is very small, the traffic ventilation force is also very small, and it can be controlled independently, the two-way tunnel can be simplified to a one-way tunnel at this time. The length of the smoke travel in the carriageway is less than or equal to 5km, which can meet the requirement that the maximum travel of fire smoke in the one-way tunnel body 1 does not exceed 5km;

[0039] 3. When the fire point is in the middle of the tunnel body 1, the same application is applied as on the high end side of the tunnel body 1 (area A).

[0040] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A single-hole bidirectional special highway tunnel with full longitudinal smoke exhaust, comprising a tunnel body (1), wherein a plurality of horizontally arranged roadway plates (2) are arranged in the tunnel body (1) along its length direction, wherein the plurality of roadway plates (2) divide the internal space of the tunnel body (1) into an upper space for vehicle passage and a lower space for escape along the vertical direction, wherein: Two vertical partition walls (3) are arranged in the lower space at intervals along the width direction of the tunnel body (1); the two partition walls (3) are arranged along the length direction of the tunnel body (1) and are connected to the bottom wall of the tunnel body (1) and the roadway slab (2) to form an escape passage; the escape passage is connected to the upper space via a plurality of connecting components; a first fan component for ventilating and exhausting smoke from the upper space is arranged in the upper space; a second fan component for supplying air to the middle of the escape passage is arranged in the escape passage; and an air supply component for supplying air to the escape passage is arranged outside the tunnel body (1).

2. A single-hole bidirectional dedicated highway tunnel with full longitudinal smoke exhaust according to claim 1, characterized in that: The connecting component comprises an evacuation door (5) and a slide (4); the partition wall (3) is provided with a plurality of first openings; the upper space is provided with second openings which are equal in number to and correspond to the first openings; the first openings are connected to the corresponding second openings via the slide (4); and the first openings are each provided with an openable and closable evacuation door (5).

3. A single-hole bidirectional dedicated highway tunnel with full longitudinal smoke exhaust according to claim 1, characterized in that: The first fan assembly comprises a plurality of first jet fans (6), and the plurality of first jet fans (6) are arranged on the top of the tunnel body (1) and are spaced apart along the length direction thereof.

4. A single-hole bidirectional dedicated highway tunnel with full longitudinal smoke exhaust according to claim 1, characterized in that: The second fan assembly comprises a plurality of second jet fans (7), wherein the plurality of second jet fans (7) are arranged in the escape passage and spaced apart along the length direction thereof.

5. The single-hole bidirectional special highway tunnel with full longitudinal smoke exhaust according to claim 1 is characterized in that: The air supply assembly comprises two groups of pressurized air supply fans (10), and the pressurized air supply fans (10) are respectively arranged at both ends of the tunnel body (1), and the pressurized air supply fans (10) are connected to the interior of the escape passage through pipelines.

6. A single-hole bidirectional dedicated highway tunnel with full longitudinal smoke exhaust according to claim 1, characterized in that: A pipe gallery (8) is provided in the lower space, and a third jet fan (9) is provided in the pipe gallery (8).

7. A single-hole bidirectional special highway tunnel with full longitudinal smoke exhaust according to claim 2, characterized in that: The upper space is provided with a down lane and an up lane respectively along the radial direction of the tunnel body (1); the second opening is located on a side of the down lane away from the up lane; and the first opening and the second opening are located on the same side.

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