CN216477428U - Connecting transverse passage layered and vertical shaft type super-long expressway tunnel discharge flue structure - Google Patents
Connecting transverse passage layered and vertical shaft type super-long expressway tunnel discharge flue structure Download PDFInfo
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- CN216477428U CN216477428U CN202122576412.8U CN202122576412U CN216477428U CN 216477428 U CN216477428 U CN 216477428U CN 202122576412 U CN202122576412 U CN 202122576412U CN 216477428 U CN216477428 U CN 216477428U
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Abstract
The utility model provides a smoke exhaust channel structure of a connecting transverse channel layered and vertical shaft type super-long expressway tunnel, which comprises a first main hole tunnel, a second main hole tunnel, a connecting transverse hole, a vertical shaft and a smoke exhaust transverse hole. The communication transverse hole is communicated with the first main hole tunnel and the second main hole tunnel. The communicating transverse hole is arranged into a double layer. The upper layer of the communicating transverse hole is communicated with the smoke discharging transverse hole through a vertical shaft. The lower layer of the communicating transverse hole is a pedestrian transverse hole or a vehicle transverse hole. The utility model divides the communicating transverse hole into an upper layer and a lower layer. The upper layer is communicated with the smoke exhaust transverse hole through a vertical shaft, and the lower layer is provided with a pedestrian transverse hole or a vehicle transverse hole. In practice, the communicating crosshole can be modified by using a vehicle running crosshole in the prior art. This just makes current driving cross hole by better transformation utilization, and then very big reduction the construction degree of difficulty under the circumstances of realization function, improved the efficiency of construction, has very important engineering meaning.
Description
Technical Field
The utility model relates to the technical field of smoke prevention and exhaust of highway tunnel fire, in particular to a smoke exhaust channel structure of a communication transverse channel layered and vertical shaft type extra-long highway tunnel.
Background
With the continuous and high-speed development of national foundation construction, the number of tunnels in China is frequently innovative, and the tunnels become countries with the most roads and tunnels and the fastest development in the world, however, the fire accidents of the roads and tunnels are correspondingly and continuously generated. The long and narrow confined structural feature of tunnel itself makes the harm nature of conflagration promote dramatically, and when the conflagration took place, the burning things which may cause a fire disaster lasts and produces a large amount of flue gas and heat, and the whole tunnel is filled rapidly to the flue gas that has the heat, seriously endangers personnel life safety. According to survey and statistics, a large amount of toxic smoke is absorbed in the case of injury or death of people in the tunnel fire.
The serious hazard of fire correspondingly puts higher requirements on the smoke prevention and the smoke discharge of the tunnel. According to current relevant specifications, highway tunnels exceeding 3000m are called very long tunnels. Aiming at the situation that the horizontal and longitudinal indexes are small, the dual-hole single-line tunnel of the extra-long highway capable of meeting the operation ventilation only by adopting the full jet flow longitudinally, the smoke discharging direction in the tunnel is the same as the driving direction of the tunnel, the maximum stroke of fire smoke in the tunnel is not more than 5000m when a fire disaster happens, and the dual-hole single-line tunnel of the extra-long highway with the length exceeding 5000m is provided with an independent smoke discharging inclined shaft or a transverse hole to shorten the spreading length of the fire smoke in the tunnel so as to ensure the evacuation safety of personnel.
When the dual-hole single-line tunnel of the extra-long highway is provided with the smoke exhaust inclined shaft or the transverse hole, only one smoke exhaust inclined shaft or transverse hole connected with one main hole tunnel is usually arranged. The smoke exhaust communication channel of the other main tunnel hole usually needs to cross the corresponding main tunnel hole upwards and further extend to be connected with the smoke exhaust inclined shaft or the transverse hole. However, the distance between the double-hole tunnels is usually not large, so that the gradient of the connection channel is correspondingly and steeply increased, the construction progress is greatly influenced, the construction difficulty is increased, and the construction efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a layered and shaft type flue structure of a tunnel of a super-long expressway, which can solve the problem of difficult construction of a main tunnel over a flue-exhausting cross tunnel.
The embodiment of the utility model is realized by the following technical scheme:
the layered and shaft type smoke exhaust channel structure of the super-long expressway tunnel with the cross connecting channel comprises a first main tunnel, a second main tunnel, a cross communicating hole, a vertical shaft and a smoke exhaust cross hole; the communication transverse hole is communicated with the first main hole tunnel and the second main hole tunnel; the communicating transverse holes are arranged into double layers; the upper layer of the communicating transverse hole is communicated with the smoke exhaust transverse hole through the vertical shaft; the lower layer of the communicating transverse hole is a pedestrian transverse hole or a vehicle transverse hole.
Further, in the horizontal direction, the vertical shaft is located between the first main tunnel and the second main tunnel; along the horizontal direction, the section of the smoke exhaust cross tunnel right above the first main tunnel or the second main tunnel is smaller than the section of the smoke exhaust cross tunnel outside the first main tunnel or the second main tunnel; the section size of the vertical shaft is the same as that of the smaller section of the smoke exhaust transverse hole.
Furthermore, a fan chamber is arranged in the smoke exhaust transverse hole; a fan and a fan control cabinet are arranged in the fan chamber; along the horizontal direction, the fan room is located the outside in first main hole tunnel or second main hole tunnel.
Further, an outlet section is positioned between the outlet of the smoke discharge cross hole and the fan chamber; the outlet section is connected with the fan chamber through a transition section; the section of the transition section is gradually increased towards one end of the fan chamber; the section of the outlet section is smaller than that of the fan chamber.
Furthermore, the communicating transverse hole is divided into an upper layer and a lower layer by a partition plate; and a sealant is arranged between the partition plate and the side wall of the communicating transverse hole.
Further, the partition plate is a steel plate with the thickness of 1 cm; the steel plate is coated with a fireproof coating.
Furthermore, the steel plate is provided with a plurality of groups of pull rods connected to the top of the communicating transverse hole; each group of pull rods is arranged symmetrically to the central line of the communicating transverse hole; and each group of pull rods is arranged at an interval of 1m along the longitudinal direction of the communicating transverse hole.
Further, the shaft height is 10 m.
The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects:
the layered smoke exhaust channel structure of the communication cross channel and the shaft type super-long expressway tunnel changes the arrangement that the traditional smoke exhaust cross tunnel obliquely strides the main tunnel and is directly connected with the main line. The communicating transverse hole is divided into an upper layer and a lower layer. The upper layer is communicated with the smoke exhaust transverse hole through a vertical shaft, and the lower layer is provided with a pedestrian transverse hole or a vehicle transverse hole. In practice, the communicating crosshole can be modified by using a vehicle running crosshole in the prior art. This just makes current driving cross hole by better transformation utilization, and then very big reduction the construction degree of difficulty under the circumstances of realization function, improved the efficiency of construction, has very important engineering meaning.
The first main tunnel and the second main tunnel in tunnel share one set of system of discharging fume, and personnel are to the control of system of discharging fume when the conflagration of being convenient for takes place, and place the fan in the cross cut of discharging fume, have simplified the structure of secret fan room when satisfying the demand of discharging fume simultaneously, reduce the cost, have improved the economic benefits of engineering.
The tunnel discharge flue structure of the connecting transverse channel layered and vertical shaft type super-long expressway makes full use of the original civil structure of the tunnel, has simple structure, novel form and low construction difficulty, and has strong practicability and applicability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a layered horizontal communication channel and a shaft type smoke exhaust channel structure of a super-long expressway tunnel provided by the utility model;
FIG. 2 is a sectional view A-A of a layered smoke exhaust channel structure of a connecting transverse channel and a shaft type super-long expressway tunnel;
FIG. 3 is a schematic view of the communicating crosshole;
fig. 4 is an enlarged view of a portion a of fig. 3.
Icon: 1-a first main tunnel, 2-a second main tunnel, 3-a communication cross tunnel, 4-a vertical shaft, 5-a smoke discharge cross tunnel, 51-a fan chamber, 52-a transition section, 6-a partition plate, 7-a pull rod, 8-a smoke discharge valve and 9-a bidirectional double-open fireproof door.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of this application is used, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in fig. 1-4, the utility model provides a smoke exhaust channel structure of a communication cross passage layered and vertical shaft type extra-long expressway tunnel, which comprises a first main tunnel 1, a second main tunnel 2, a communication cross tunnel 3, a vertical shaft 4 and a smoke exhaust cross tunnel 5. The first main tunnel 1 and the second main tunnel 2 are two bidirectional parallel tunnels. The communicating transverse hole 3 communicates the first main hole tunnel 1 and the second main hole tunnel 2. In the prior art, a vehicle transverse hole and a pedestrian transverse hole are arranged between two parallel tunnels, so that vehicles and people can be conveniently transferred between the two parallel tunnels when accidents happen to the tunnels. In the utility model, the connecting tunnel can adopt a transverse vehicle-running hole and a transverse pedestrian hole in the prior art. Simultaneously, set up the crosswalk hole among the prior art or crosswalk hole to the bilayer, and then set up intercommunication crosswalk hole 3 to the bilayer. The upper layer of the communicating transverse hole 3 is communicated with a smoke discharging transverse hole 5 through a vertical shaft 4. The lower layer of the communicating transverse hole 3 is a pedestrian transverse hole or a vehicle transverse hole. When a fire breaks out in the first main tunnel 1 or the second main tunnel 2, smoke in the first main tunnel 1 or the second main tunnel 2 enters the vertical shaft 4 through the upper layer of the communicating transverse hole 3 and is discharged through the smoke discharge transverse hole 5. Meanwhile, people or vehicles in the first main tunnel 1 or the second main tunnel 2 are transferred to the other tunnel through the pedestrian crosswalk or the vehicle crosswalk at the lower layer of the communicating crosswalk 3.
The layered smoke exhaust channel structure of the communication cross passage and the shaft type super-long expressway tunnel changes the arrangement that the traditional smoke exhaust cross tunnel 5 obliquely strides a main tunnel and is directly connected with a main line. The communicating cross cut 3 is divided into an upper layer and a lower layer. The upper layer is communicated with a smoke exhaust transverse hole 5 through a vertical shaft 4, and the lower layer is provided with a pedestrian transverse hole or a vehicle transverse hole. In practice, the communicating crosshole 3 can be modified by using a vehicle crosshole in the prior art. This just makes current driving cross hole by better transformation utilization, and then very big reduction the construction degree of difficulty under the circumstances of realization function, improved the efficiency of construction, has very important engineering meaning.
The first main tunnel 1 and the second main tunnel 2 in tunnel share one set of system of discharging fume, and personnel are to the control of system of discharging fume when the conflagration of being convenient for takes place, and place the fan in discharging fume cross tunnel 5, have simplified the structure in secret fan room when satisfying the demand of discharging fume simultaneously, reduce the cost, have improved the economic benefits of engineering.
The tunnel discharge flue structure of the connecting transverse channel layered and vertical shaft type super-long expressway makes full use of the original civil structure of the tunnel, has simple structure, novel form and low construction difficulty, and has strong practicability and applicability.
In this embodiment, the shaft 4 is located between the first main tunnel 1 and the second main tunnel 2 in the horizontal direction. This makes it possible to construct the shaft 4 without causing damage to the upper sides of the first main tunnel 1 and the second main tunnel 2. Meanwhile, along the horizontal direction, the section of the smoke exhaust cross tunnel 5 right above the first main tunnel 1 or the second main tunnel 2 is smaller than the section of the smoke exhaust cross tunnel 5 outside the first main tunnel 1 or the second main tunnel 2. The section size of the vertical shaft 4 is the same as that of the smaller section of the smoke exhaust transverse hole 5. The smaller section of the vertical shaft 4 reduces the influence of the excavation of the smoke discharge cross tunnel 5 on the main line tunnel.
In this embodiment, a fan room 51 is provided inside the smoke evacuation cross tunnel 5. The fan room 51 is provided therein with a fan and a fan control cabinet. The fan control cabinet controls the fan to extract smoke in the first main tunnel 1 and the second main tunnel 2, and smoke is discharged better. In the horizontal direction, the fan room 51 is located outside the first main tunnel 1 or the second main tunnel 2. The exhaust cross hole 5 is located between its outlet and the fan room 51 as an outlet section. The outlet section is connected to the fan chamber 51 by a transition section 52. The transition section 52 has a cross section gradually increasing toward the end of the fan chamber 51. The cross-section of the outlet section is smaller than the cross-section of the fan chamber 51. A set of axial fan and fan control cabinet arrange in the big transverse hole 5 that discharges fume of section, and fan control cabinet adopts unchangeable processing after the convergent to the section of discharging fume 5 export sections of transverse hole, and entrance to a cave section area is less, satisfy the vehicle pedestrian pass through can, the convenience is overhauld the fan control room.
In this embodiment, the communicating cross tunnel 3 is partitioned into an upper layer and a lower layer by a partition plate 6. And sealant is arranged between the partition plate 6 and the side wall communicated with the transverse hole 3. Thereby preventing the smoke from pouring into the lower layer to influence the disaster prevention, rescue and evacuation of the tunnel. The both ends on upper strata are equipped with smoke damper 8, can adopt modes such as manual, automatic and remote control to open, and the lower floor both ends are equipped with two-way double open fire door 9, make things convenient for the pedestrian to evacuate from conflagration tunnel and flee to non-conflagration tunnel in, guarantee personnel's life safety.
In this embodiment, the partition plate 6 is a steel plate having a thickness of 1cm, so that the partition plate 6 is easy to process and has a light weight. The steel plate is coated with fireproof paint, so that the fireproof performance is ensured.
In this embodiment, the steel plate is provided with a plurality of groups of pull rods 7 connected to the top of the communicating transverse hole 3. Each group of pull rods 7 is arranged symmetrically to the central line of the communicating transverse hole 3. And each group of pull rods 7 is arranged at an interval of 1m along the longitudinal direction of the communicating transverse hole 3. The pull rod 7 enables the connection between the steel plate and the communication transverse hole 3 to be more stable.
In this embodiment, the shaft 4 has a height of 10m and a circular cross-section with a diameter of 5 m. The shaft 4 may be specifically sized according to the geological surrounding rock conditions in situ.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. Connection horizontal passage layering adds shaft type ultralong highway tunnel discharge flue structure, its characterized in that: comprises a first main tunnel (1), a second main tunnel (2), a communicating transverse tunnel (3), a vertical shaft (4) and a smoke exhaust transverse tunnel (5); the communication transverse hole (3) is communicated with the first main hole tunnel (1) and the second main hole tunnel (2); the communicating transverse holes (3) are arranged into double layers; the upper layer of the communicating transverse hole (3) is communicated with the smoke exhaust transverse hole (5) through the vertical shaft (4); the lower layer of the communicating transverse hole (3) is a pedestrian transverse hole or a vehicle transverse hole.
2. The horizontal communication channel layered and shaft type flue structure for the tunnel of the extra-long expressway of claim 1, wherein: the vertical shaft (4) is positioned between the first main tunnel (1) and the second main tunnel (2) along the horizontal direction; along the horizontal direction, the section of the smoke exhaust transverse hole (5) right above the first main hole tunnel (1) or the second main hole tunnel (2) is smaller than the section of the smoke exhaust transverse hole (5) on the outer side of the first main hole tunnel (1) or the second main hole tunnel (2); the section size of the vertical shaft (4) is the same as that of the smaller section of the smoke exhaust transverse hole (5).
3. The horizontal communication channel layered and shaft type flue structure for the tunnel of the extra-long expressway of claim 2, wherein: a fan chamber (51) is arranged in the smoke exhaust transverse hole (5); a fan and a fan control cabinet are arranged in the fan chamber (51); the fan room (51) is located outside the first main tunnel (1) or the second main tunnel (2) in the horizontal direction.
4. The horizontal communication channel layered and shaft type flue structure for the tunnel of the extra-long expressway of claim 3, wherein: the smoke discharge cross hole (5) is positioned between the outlet of the smoke discharge cross hole and the fan chamber (51) and is an outlet section; the outlet section is connected with the fan chamber (51) through a transition section (52); the section of the transition section (52) is gradually increased towards one end of the fan chamber (51); the cross section of the outlet section is smaller than the cross section of the fan chamber (51).
5. The horizontal communication channel layered and shaft type flue structure for the tunnel of the extra-long expressway of claim 1, wherein: the communicating transverse hole (3) is divided into an upper layer and a lower layer by a clapboard (6); and a sealant is arranged between the partition plate (6) and the side wall of the communicating transverse hole (3).
6. The horizontal communication channel layered and shaft type flue structure for the tunnel of the extra-long expressway of claim 5, wherein: the partition plate (6) is a steel plate with the thickness of 1 cm; the steel plate is coated with a fireproof coating.
7. The horizontal communication channel layered and shaft type flue structure for the tunnel of the extra-long expressway of claim 6, wherein: the steel plate is provided with a plurality of groups of pull rods (7) connected to the top of the communicating transverse hole (3); each group of the pull rods (7) is arranged symmetrically to the central line of the communicating transverse hole (3); and each group of pull rods (7) is arranged at an interval of 1m along the longitudinal direction of the communicating transverse hole (3).
8. The horizontal communication channel layered and shaft type super long highway tunnel smoke exhaust channel structure according to claim 1, characterized in that: the height of the shaft (4) is 10 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122576412.8U CN216477428U (en) | 2021-10-25 | 2021-10-25 | Connecting transverse passage layered and vertical shaft type super-long expressway tunnel discharge flue structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122576412.8U CN216477428U (en) | 2021-10-25 | 2021-10-25 | Connecting transverse passage layered and vertical shaft type super-long expressway tunnel discharge flue structure |
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| Publication Number | Publication Date |
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| CN216477428U true CN216477428U (en) | 2022-05-10 |
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| CN202122576412.8U Active CN216477428U (en) | 2021-10-25 | 2021-10-25 | Connecting transverse passage layered and vertical shaft type super-long expressway tunnel discharge flue structure |
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| CN (1) | CN216477428U (en) |
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- 2021-10-25 CN CN202122576412.8U patent/CN216477428U/en active Active
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 610047 area a and B, 8th floor, Sichuan Expressway Building, No.90, West 1st section of 2nd Ring Road, Wuhou District, Chengdu City, Sichuan Province Patentee after: Sichuan Communications Construction Group Co.,Ltd. Address before: 610041 area a and B, 8th floor, Sichuan Expressway Building, No.90, West 1st section of 2nd Ring Road, Wuhou District, Chengdu City, Sichuan Province Patentee before: Sichuan Communications Construction Group Co.,Ltd. |
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