CN118208278A - TBM tunnel ventilation system and TBM tunnel - Google Patents
TBM tunnel ventilation system and TBM tunnel Download PDFInfo
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- CN118208278A CN118208278A CN202410427684.7A CN202410427684A CN118208278A CN 118208278 A CN118208278 A CN 118208278A CN 202410427684 A CN202410427684 A CN 202410427684A CN 118208278 A CN118208278 A CN 118208278A
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- 238000009423 ventilation Methods 0.000 title claims abstract description 49
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 19
- 230000008569 process Effects 0.000 description 14
- 238000007599 discharging Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Abstract
The disclosure provides a TBM tunnel ventilation system and a TBM tunnel. The ventilation system comprises an air supply pipe, an air draft device, an air supply device, an air exhaust transverse channel and an air supply transverse channel; the TBM tunnel comprises a first tunnel and a second tunnel, the air supply pipe is arranged in the first tunnel and the second tunnel, one air outlet of the air supply pipe is used for outputting air towards the tunnel face of the first tunnel, the other air outlet is used for outputting air towards the tunnel face of the second tunnel, the air supply device is arranged in one of the first tunnel and the second tunnel and is close to the corresponding tunnel face, and the air supply device is communicated with the air inlet to supply air to the two tunnel faces respectively; the first tunnel and the second tunnel are communicated through an exhaust transverse channel, and the exhaust device is arranged in the exhaust transverse channel to extract and collect the sewage wind into the other tunnel for discharge. Make the interior new trend of blast pipe directly blow to two face, shorten the interior ventilation distance of impressing in order to guarantee ventilation effect, need not to set up the higher fan of power in order to satisfy long distance air supply demand, reduce the energy consumption loss.
Description
Technical Field
The disclosure relates to the technical field of tunnel ventilation systems, in particular to a TBM tunnel ventilation system and a TBM tunnel.
Background
TBM (Tunnel Boring Machine, full section hard rock tunnel boring machine) tunnel's construction distance is longer, can lead to the tuber pipe air supply in-process to leak out more for working face amount of wind can't satisfy ventilation requirement, and equipment end operating temperature is high in the tunnel, makes the tunnel operation environment relatively poor, and the air oxygen content is lower in the tunnel simultaneously, produces harm to the human body easily.
The existing TBM tunnel is generally provided with independent ventilation systems for the two tunnels respectively, the loss of the air quantity in the ventilation systems in the long-distance air supply process is large, the ventilation effect is poor, the power requirement of the long-distance air supply on the fan is high, and the energy consumption of the fan is large.
Disclosure of Invention
In order to solve the technical problems, the disclosure provides a TBM tunnel ventilation system and a TBM tunnel.
A first aspect of the present disclosure provides a TBM tunnel ventilation system comprising: the device comprises an air supply pipe, an air draft device, an air supply device, an air exhaust transverse channel and an air supply transverse channel;
the TBM tunnel comprises a first tunnel and a second tunnel which are arranged in parallel, the air supply pipe is arranged in the first tunnel and the second tunnel, the air supply pipe is provided with an air inlet and two air outlets, one air outlet is used for outputting air towards the tunnel face of the first tunnel, the other air outlet is used for outputting air towards the tunnel face of the second tunnel, the air supply device is arranged in one of the first tunnel and the second tunnel and is close to the tunnel face of the corresponding tunnel, and the air supply device is communicated with the air inlets to respectively supply fresh air to the two tunnel faces;
The first tunnel is communicated with the second tunnel through the air exhaust transverse channel, and the air draft device is arranged in the air exhaust transverse channel so as to extract the dirty air in the tunnel corresponding to the air supply device and collect the extracted dirty air into the other tunnel to be exhausted.
Optionally, the air supply pipe comprises a first air pipe and a second air pipe;
The air inlet of first tuber pipe with the air intake of second tuber pipe all with air supply arrangement intercommunication, first tuber pipe is located in the first tunnel, the air outlet of first tuber pipe orientation the face air-out of first tunnel, first tunnel with the second tunnel passes through the horizontal passageway intercommunication of air supply, the second tuber pipe passes the horizontal passageway of air supply and stretch to in the second tunnel, the air outlet of second tuber pipe orientation the face air-out of second tunnel.
Optionally, the air supply device comprises a plurality of first axial flow fans which are all positioned in the first tunnel and are arranged at intervals and used for relay fresh air supply;
The air inlet ends of the first axial flow fans are arranged towards the inlet of the first tunnel, one of the first axial flow fans is close to the face of the first tunnel, and the air inlet ends of the first axial flow fans are communicated with the air inlet of the first air pipe and the air inlet of the second air pipe respectively.
Optionally, the air supply device at least includes two first axial fan, two first axial fan all is located be close to the position of face in the first tunnel and the air inlet end all is towards the entry setting of first tunnel, two first axial fan respectively with first tuber pipe the second tuber pipe corresponds the intercommunication.
Optionally, the air supply device further includes a second axial fan located at a position close to the inlet in the first tunnel, and an air inlet end of the second axial fan is disposed towards the inlet of the first tunnel and is used for supplying fresh air to the first axial fan.
Optionally, the air supply device further includes a third axial flow fan, and the third axial flow fan is located at a position close to the inlet in the second tunnel, and an air inlet end of the third axial flow fan faces the tunnel face of the second tunnel and is used for discharging sewage to the inlet of the second tunnel.
Optionally, the air exhaust transverse channel and the air supply transverse channel are arranged at intervals and are inclined towards each other.
Optionally, an air wall is disposed at the opening of the air supply transverse channel near the second tunnel, and is used for blocking the dirty air in the second tunnel from entering the air supply transverse channel.
Optionally, the exhaust device at least includes a jet fan, sets up in the horizontal passageway of airing exhaust, jet fan's air inlet end orientation the horizontal passageway of airing exhaust is close to the direction setting of first tunnel is used for the extraction dirty wind in the first tunnel is assembled to in the second tunnel.
A second aspect of the present disclosure provides a TBM tunnel comprising a TBM tunnel ventilation system as described above.
The TBM tunnel ventilation system comprises an air supply pipe, an air draft device, an air supply device, an air exhaust transverse channel and an air supply transverse channel, wherein two air inlets of the air supply pipe are used for respectively outputting air towards respective tunnel faces of a first tunnel and a second tunnel, the air supply device is only arranged in one of the first tunnel and the second tunnel and is close to the position of the tunnel face corresponding to the tunnel, the air supply device and the air supply pipe are arranged at a certain distance behind the tunnel face, fresh air in the air supply pipe can be directly blown to the two tunnel faces, the distance of ventilation in the tunnel can be shortened, the air quantity loss in the air supply process is reduced, and the air supply device and the air supply pipe can move along with the continuous pushing of the tunnel face in the use process, so that the ventilation distance in the tunnel is not overlong all the time, the conveying speed of the fresh air is improved, the air quantity and the ventilation effect of the two tunnel faces are guaranteed, and a fan with higher power is not required to be arranged for meeting the long-distance air supply requirement, and the energy consumption is reduced; and through the horizontal passageway intercommunication of airing exhaust between first tunnel and the second tunnel, updraft ventilator sets up in the horizontal passageway of airing exhaust for the dirty wind in the tunnel that corresponds with air supply arrangement is assembled to the dirty wind of extraction in another tunnel, and discharge, that is to say, this ventilation system sets up the air supply arrangement who send new trend in one of them tunnel of first tunnel and second tunnel, is used for discharging dirty wind in another tunnel, makes can not produce the interference between new trend and the dirty wind, flows through different tunnels respectively, makes the ventilation effect in the tunnel better.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a cross-sectional view of a TBM tunnel ventilation system in accordance with an embodiment of the present disclosure;
Fig. 2 is an enlarged view at a in fig. 1.
Reference numerals:
1. a first air duct; 2. a second air duct; 3. a first axial flow fan; 4. a second axial flow fan; 5. a third axial flow fan; 6. a jet fan; 7. an air wall;
11. a first tunnel; 12. a second tunnel; 13. a tunnel face; 14. a transverse exhaust channel; 15. and (5) an air supply transverse channel.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.
The following describes the TBM tunnel ventilation system and TBM tunnel in detail by specific embodiments:
referring to fig. 1 and 2, some embodiments of the present disclosure provide a TBM tunnel ventilation system, comprising: the air supply pipe, the air draft device, the air supply device, the air exhaust transverse channel 14 and the air supply transverse channel 15.
Specifically, the TBM tunnel includes the first tunnel 11 and the second tunnel 12 of parallel setting, and the blast pipe sets up in first tunnel 11 and second tunnel 12, and the blast pipe has air intake and two air outlets, and one of them air outlet is towards the face 13 air-out of first tunnel 11, and the other air outlet is towards the face 13 air-out of second tunnel 12, and air supply arrangement sets up in one of first tunnel 11 and second tunnel 12 and is close to the face 13 setting of corresponding tunnel, and air supply arrangement and air intake intercommunication are in order to send the new trend to two faces 13 respectively.
The first tunnel 11 and the second tunnel 12 are communicated through an exhaust transverse channel 14, and an exhaust device is arranged in the exhaust transverse channel 14 to extract the dirty air in the tunnel corresponding to the air supply device and collect the extracted dirty air into the other tunnel for discharge.
The utility model provides a TBM tunnel ventilation system, through lay air supply arrangement and blast pipe at tunnel face 13 rear a certain distance, and the fresh air in the blast pipe can directly blow to two tunnel faces 13, can shorten the distance that the tunnel was pressed into the ventilation, reduced the amount of wind loss in the air supply process, in addition in the use air supply arrangement and blast pipe can follow the continuous promotion of tunnel face 13 and remove thereupon, make the ventilation distance in the tunnel can not overlength all the time, the resistance in the ventilation process is also less, thereby improve the conveying speed of fresh air, guaranteed the amount of wind and the ventilation effect of two tunnel faces 13 departments, thereby need not to set up the higher fan of power in order to satisfy long distance air supply demand, the energy consumption loss has been reduced.
And the first tunnel 11 and the second tunnel 12 are communicated through an exhaust transverse channel 14, and an exhaust device is arranged in the exhaust transverse channel 14 and used for extracting the sewage wind in the tunnel corresponding to the air supply device and converging the extracted sewage wind into the other tunnel to be discharged. In the practical application process, the blast pipe continuously blows out fresh air towards the tunnel face 13, and when the tunnel face 13 in the tunnel continuously advances, the fresh air at the tunnel face 13 also continuously becomes dirty air, and through setting up updraft ventilator in the horizontal passageway 14 of airing exhaust for the dirty air in the tunnel that corresponds with updraft ventilator can get into the horizontal passageway 14 of airing exhaust under updraft ventilator's extraction effect, and then assemble to another tunnel in, carry out unified emission, make the new trend of pooling go on with the dirty air of emission can be orderly simultaneously, and mutually noninterfere. That is, the ventilation system is that an air supply device for supplying fresh air is arranged in one of the first tunnel 11 and the second tunnel 12, and the other tunnel is used for discharging dirty air, so that no interference is generated between the fresh air and the dirty air, and the fresh air and the dirty air flow through different tunnels respectively, so that the ventilation effect in the tunnels is better. The way of discharging the dirty wind can discharge the dirty wind of face 13 department out of the tunnel fast, can improve the construction environment in the tunnel, guarantee constructor's health to guarantee that the new trend can not mix with the dirty wind in the transportation process, prevent that the new trend from being polluted by the dirty wind, be favorable to guaranteeing the fresh air supply volume in the regional nearby face 13, be favorable to improving tunnel construction's security and high efficiency.
In the actual application process, the air supply pipe may be an entire pipe, which may have one air inlet and two air outlets, that is, the air outlet end of the air supply pipe may be provided in a fork shape. The blast pipe may also be provided as two separate ducts to achieve separate blast of the two tunnel faces 13. In some embodiments, as shown in fig. 1, the first tunnel 11 and the second tunnel 12 are parallel to each other and are arranged at intervals, the air supply pipe includes a first air pipe 1 and a second air pipe 2, air inlets of the first air pipe 1 and the second air pipe 2 are all communicated with the air supply device, the first air pipe 1 is located in the first tunnel 11, an air outlet of the first air pipe 1 faces a tunnel face 13 of the first tunnel 11 to be air-out, the first tunnel 11 and the second tunnel 12 are communicated through an air supply transverse channel 15, the second air pipe 2 passes through the air supply transverse channel 15 and extends into the second tunnel 12, and an air outlet of the second air pipe 2 faces the tunnel face 13 of the second tunnel 12 to be air-out. The air inlets of the first air pipe 1 and the second air pipe 2 are both positioned in the first tunnel 11 and are communicated with the air supply device, the first air pipe 1 is used for air-out of the tunnel face 13 of the first tunnel 11, the second air pipe 2 is used for air-out of the tunnel face 13 of the second tunnel 12, the excavated section in one tunnel is used as a channel for introducing fresh air in the arrangement mode, the air quantity loss can be reduced to a certain extent, the integration of the first air pipe 1 and the second air pipe 2 can be improved, and when the air supply device and each air pipe can be directly moved forwards correspondingly as the tunnel face 13 is required to be pushed forwards. Through setting up first tuber pipe 1 and second tuber pipe 2 for directly carry every face 13 departments with the new trend, carry the new trend promptly to the face of digging, make things convenient for constructor's normal free breathing, perfect the construction environment in the tunnel, prevent to take place the hypoxia phenomenon.
In some embodiments, the air supply device includes a plurality of first axial fans 3, all located in the first tunnel 11 and spaced apart from each other, and when the excavated section is too long in the tunnel, the relay fresh air can be realized through the plurality of first axial fans 3. The air inlet ends of the plurality of first axial flow fans 3 are arranged towards the inlet of the first tunnel 11, and one of the first axial flow fans 3 is arranged close to the tunnel face 13 of the first tunnel 11 and is communicated with the air inlets of the first air pipe 1 and the second air pipe 2 respectively. The number of the first axial flow fans 3 and the distance at which the plurality of first axial flow fans 3 are spaced from each other are adaptively set according to the distance between the tunnel face 13 in the first tunnel 11 and the entrance of the first tunnel 11.
The length of other existing tunnels such as a drilling and blasting method tunnel is usually about 5 km, the common fan can only meet the ventilation requirement of the short-distance tunnel, the TBM tunnel is a long-distance tunnel type tunnel, the distance of the tunnel can reach more than 20 km by dividing and repairing the first tunnel 11 and the second tunnel 12, and by arranging the ventilation system, the first axial flow fan 3 and each air pipe can move along with the continuous pushing of the tunnel face 13 in the use process, so that the ventilation distance in the tunnel is not overlong all the time, and the ventilation requirement of the long-distance TBM tunnel is met.
The above-described arrangement of the first duct 1 and the second duct 2 is only an exemplary arrangement, and does not limit the scope of the present disclosure. In the practical application process, the air supply device may also be a fan and be simultaneously communicated with the air inlets of the first air pipe 1 and the second air pipe 2, or the air supply device may also be another type of fan, for example, a centrifugal fan, etc.
In other embodiments, the air supply device may further include at least two first axial flow fans 3, where the two first axial flow fans 3 are located at positions close to the tunnel face 13 in the first tunnel 11, and air inlet ends of the two first axial flow fans 3 are located towards the inlet of the first tunnel 11, and the two first axial flow fans 3 are correspondingly communicated with the first air pipe 1 and the second air pipe 2 respectively.
In some embodiments, referring to fig. 1, the air supply device further includes a second axial fan 4, located in the first tunnel 11 near the inlet, where an air inlet end of the second axial fan 4 is disposed towards the inlet of the first tunnel 11 and is used for supplying fresh air to the first axial fan 3, so as to form a fresh air transmission bridge between the inlet of the first tunnel 11 and the first axial fan 3, and after the fresh air at the inlet of the first tunnel 11 is sucked into the first tunnel 11 by the second axial fan 4, the fresh air is blown to the air inlet end of the first axial fan 3, so as to realize the collection of the fresh air. In a specific implementation, the specific size and the setting position of the second axial fan 4 may be flexibly set according to the overall length of the first tunnel 11, other types of fans may be selected, and the number of fans may be increased.
In some embodiments, referring to fig. 1, the air supply device further includes a third axial fan 5, located in the second tunnel 12 near the inlet, where an air inlet end of the third axial fan 5 faces the tunnel face 13 of the second tunnel 12, for discharging the sewage to the inlet of the second tunnel 12. After the dirty wind in the first tunnel 11 is extracted into the exhaust transverse channel 14 through the exhaust device, a large amount of dirty wind is gathered into the second tunnel 12 along the exhaust transverse channel 14, the dirty wind at the tunnel face 13 of the second tunnel 12 is gathered into the second tunnel 12, and by arranging the third axial fan 5, a large amount of dirty wind gathered in the first tunnel 11 and the second tunnel 12 can be timely discharged along the second tunnel 12, so that the discharging speed of the dirty wind in the TBM tunnel is improved, the dirty wind of the two tunnels is prevented from being accumulated in the second tunnel 12 for a long time, and the bad construction environment and the like of the second tunnel 12 are caused. The third axial flow fan 5 may be disposed between the air supply cross passage 15 and the inlet of the second tunnel 12 such that the third axial flow fan 5 is close to the inlet of the second tunnel 12, and can rapidly discharge a large amount of contaminated air toward the inlet of the second tunnel 12. In a specific implementation, the specific size and the setting position of the third axial flow fan 5 may be flexibly set according to the overall length of the second tunnel 12, other types of fans may be selected, and the number of fans may be increased.
In some embodiments, the air exhaust transverse channels 14 and the air supply transverse channels 15 are arranged at intervals and are inclined towards each other, so that the air supply transverse channels 15 are arranged towards the face 13 of the second tunnel 12, that is to say the second air pipes 2 arranged inside the air supply transverse channels can be arranged towards the face 13 of the second tunnel 12 directly along the air supply transverse channels 15, and the length of the second air pipes 2 is shortened to a certain extent. The exhaust transverse channel 14 is arranged towards the inlet of the second tunnel 12, so that the sewage in the first tunnel 11 can be discharged towards the inlet of the second tunnel 12 along the exhaust transverse channel 14, and the discharge speed of the sewage in the first tunnel 11 is accelerated to a certain extent.
Further, the air supply cross channel 15 is provided with an air wall 7 near the opening of the second tunnel 12, and the air wall 7 can also be called a wind shielding wall, and only the second air pipe 2 passes through. For blocking the dirty air in the second tunnel 12 from entering the air supply cross channel 15.
In some embodiments, the air extracting device at least includes one jet fan 6, which is disposed in the air exhaust transverse channel 14, and the air inlet end of the jet fan 6 is disposed towards the direction of the air exhaust transverse channel 14 near the first tunnel 11, and is used for extracting the dirty air in the first tunnel 11 and converging the dirty air into the second tunnel 12, so as to ensure smooth discharge of the dirty air in the first tunnel 11, and achieve the purposes of ventilation and air exchange. The above-mentioned arrangement of the jet fan 6 is merely an exemplary arrangement, and does not limit the scope of the present disclosure. In the practical application process, the air supply device can also adopt other types of fans, such as centrifugal fans, or the number of jet fans 6 can also be multiple, and the air supply device can be flexibly arranged according to the specific length of the air exhaust transverse channel 14 and the sewage discharge air requirement of the first tunnel 11.
Other embodiments of the present disclosure provide a TBM tunnel, including the TBM tunnel ventilation system described above, where the TBM tunnel includes a first tunnel 11 and a second tunnel 12 that are disposed in parallel, and the ventilation system is disposed in the first tunnel 11 and the second tunnel 12, so that the TBM tunnel ventilation system in any of the foregoing embodiments has the beneficial effects, which are not described herein again.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A TBM tunnel ventilation system, comprising: the device comprises an air supply pipe, an air draft device, an air supply device, an air exhaust transverse channel and an air supply transverse channel;
the TBM tunnel comprises a first tunnel and a second tunnel which are arranged in parallel, the air supply pipe is arranged in the first tunnel and the second tunnel, the air supply pipe is provided with an air inlet and two air outlets, one air outlet is used for outputting air towards the tunnel face of the first tunnel, the other air outlet is used for outputting air towards the tunnel face of the second tunnel, the air supply device is arranged in one of the first tunnel and the second tunnel and is close to the tunnel face of the corresponding tunnel, and the air supply device is communicated with the air inlets to respectively supply fresh air to the two tunnel faces;
The first tunnel is communicated with the second tunnel through the air exhaust transverse channel, and the air draft device is arranged in the air exhaust transverse channel so as to extract the dirty air in the tunnel corresponding to the air supply device and collect the extracted dirty air into the other tunnel to be exhausted.
2. The TBM tunnel ventilation system of claim 1, wherein the blast duct comprises a first duct and a second duct;
The air inlet of first tuber pipe with the air intake of second tuber pipe all with air supply arrangement intercommunication, first tuber pipe is located in the first tunnel, the air outlet of first tuber pipe orientation the face air-out of first tunnel, first tunnel with the second tunnel passes through the horizontal passageway intercommunication of air supply, the second tuber pipe passes the horizontal passageway of air supply and stretch to in the second tunnel, the air outlet of second tuber pipe orientation the face air-out of second tunnel.
3. The TBM tunnel ventilation system of claim 2, wherein the air supply device comprises a plurality of first axial flow fans, all positioned in the first tunnel and arranged at intervals, for relay fresh air supply;
The air inlet ends of the first axial flow fans are arranged towards the inlet of the first tunnel, one of the first axial flow fans is close to the face of the first tunnel, and the air inlet ends of the first axial flow fans are communicated with the air inlet of the first air pipe and the air inlet of the second air pipe respectively.
4. The TBM tunnel ventilation system of claim 2, wherein the air supply device includes at least two first axial flow fans, the two first axial flow fans are both located at a position close to the tunnel face in the first tunnel, air inlet ends of the two first axial flow fans are both disposed towards the inlet of the first tunnel, and the two first axial flow fans are respectively correspondingly communicated with the first air pipe and the second air pipe.
5. The TBM tunnel ventilation system of claim 3 or 4, wherein the air supply device further comprises a second axial fan positioned within the first tunnel proximate to the inlet, an air inlet end of the second axial fan being positioned toward the inlet of the first tunnel for supplying fresh air to the first axial fan.
6. The TBM tunnel ventilation system of claim 3 or 4, wherein the air supply device further comprises a third axial fan positioned in the second tunnel near the inlet, an air inlet end of the third axial fan facing the tunnel face of the second tunnel for exhausting air to the inlet of the second tunnel.
7. The TBM tunnel ventilation system of claim 1, wherein the air discharge and air supply cross-channels are spaced apart and each inclined toward each other.
8. The TBM tunnel ventilation system of claim 1, wherein an air wall is disposed at the opening of the air supply cross channel adjacent to the second tunnel for blocking the dirty air in the second tunnel from entering the air supply cross channel.
9. The TBM tunnel ventilation system of claim 1, wherein the air draft device includes at least one jet fan disposed in the air exhaust cross channel, and an air inlet end of the jet fan is disposed toward the air exhaust cross channel and near the direction of the first tunnel, for extracting the dirty air in the first tunnel and converging the dirty air into the second tunnel.
10. A TBM tunnel comprising a TBM tunnel ventilation system as claimed in any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410427684.7A CN118208278A (en) | 2024-04-10 | 2024-04-10 | TBM tunnel ventilation system and TBM tunnel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410427684.7A CN118208278A (en) | 2024-04-10 | 2024-04-10 | TBM tunnel ventilation system and TBM tunnel |
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| CN118208278A true CN118208278A (en) | 2024-06-18 |
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| CN202410427684.7A Pending CN118208278A (en) | 2024-04-10 | 2024-04-10 | TBM tunnel ventilation system and TBM tunnel |
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