CN114876552A - Tunnel ventilation system for pressure relief of underground railway station of rail transit - Google Patents
Tunnel ventilation system for pressure relief of underground railway station of rail transit Download PDFInfo
- Publication number
- CN114876552A CN114876552A CN202210512887.7A CN202210512887A CN114876552A CN 114876552 A CN114876552 A CN 114876552A CN 202210512887 A CN202210512887 A CN 202210512887A CN 114876552 A CN114876552 A CN 114876552A
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- Prior art keywords
- pressure relief
- hole
- station
- line
- piston air
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- 238000009423 ventilation Methods 0.000 title claims abstract description 18
- 238000005192 partition Methods 0.000 claims abstract description 9
- 238000010276 construction Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/003—Ventilation of traffic tunnels
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/14—Air partitions; Air locks
- E21F1/145—Air locks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Ventilation (AREA)
Abstract
The invention provides a tunnel ventilation system for pressure relief of a rail transit underground overtaking station, which comprises: the system comprises a tunnel, a platform, a crossing line, a stop line and a partition wall, wherein the crossing line is a line for a train to cross the station at a high speed and is positioned on the side far away from the platform of the station; the stop line is a train arrival stop line and is positioned close to the side of the station platform; the partition wall is arranged between the stop line and the passing line; the tunnel ventilation system includes: the pressure relief hole, the piston air hole, the pressure relief well and the piston air well; the pressure relief hole is combined with the piston air hole, arranged above the stop line and in the range of the partition wall; the area of the pressure relief hole and the piston hole is larger than or equal to the area of the section of the parking line tunnel at the position of the hole; the pressure relief well is combined with the piston air well and communicated with the pressure relief hole and the piston air hole through the piston air duct. The invention effectively reduces the influence of high-speed train station crossing, saves civil construction space and reduces civil construction investment.
Description
Technical Field
The invention belongs to the technical field of rail transit aerodynamics, and particularly relates to a tunnel ventilation system for pressure relief of an underground overtaking station of rail transit.
Background
With the gradual expansion of urban area range, the construction of urban rail transit lines is changed from central urban area lines to urban area lines and intercity lines, and in order to improve the overall operation capacity of the network and the passenger conveying efficiency, the speed of trains is gradually improved in recent years. The tunnel aerodynamic effect caused by the high-speed running of the train in the tunnel has serious influence on the running safety, the economical efficiency and the comfort of drivers and passengers. The track traffic built and operated at present usually adopts the following modes for overcoming the influence brought by the high-speed running of underground station trains:
firstly, when a train passes through an underground station, the speed is reduced and the train passes through the underground station without additional pressure relief measures;
secondly, the train passes through the underground station, and measures such as increasing the section area of the tunnel or relieving pressure are adopted, such as arranging independent pressure relief holes, pressure relief wells, transverse channels and the like.
The above method has the following disadvantages: the train needs to be subjected to speed reduction processing, cannot realize a high-standard blank target, and assists in high-quality development of cities; by adopting a separate pressure relief measure, the civil engineering cost is increased, and the resource waste is caused.
Disclosure of Invention
In order to overcome the technical defects, the invention provides a tunnel ventilation system for pressure relief of underground overtaking stations of rail transit, which can save civil engineering cost and effectively reduce the influence of pressure on station facilities and drivers and passengers.
In order to solve the problems, the invention is realized according to the following technical scheme:
a tunnel ventilation system for rail transit underground overtaking station pressure relief comprises: the pressure relief hole and piston air hole, the pressure relief well and piston air shaft, the overtaking station, the partition wall and the tunnel ventilation system are respectively arranged at two ends of the station;
the upper and lower tunnels of the underground overtaking station are respectively provided with an overtaking line and a stop line;
the crossing line is a line for the train to cross the station at high speed and is positioned on the side far away from the station platform;
the stop line is a train arrival stop line and is positioned on the side close to the station platform;
the partition wall is arranged between the crossing line and the stop line;
the pressure relief hole and the piston air hole are arranged above the stop line and in the range of the partition wall;
the pressure relief well is combined with the piston air well and communicated with the pressure relief hole and the piston air hole through the piston air duct.
As a further improvement of the invention, the invention also comprises: the pressure relief hole is combined with the piston air hole, and the area of the pressure relief hole is larger than or equal to the area of the cross section of the parking line tunnel at the position of the hole.
Compared with the prior art, the invention has the following beneficial effects: the pressure relief method combining the pressure relief function with the piston ventilation effectively reduces the influence of pressure generated by high-speed running of the train on station facilities and drivers and passengers, saves civil space and reduces civil investment; the piston air shaft and the pressure relief well reduce the influence of the air shaft out of the ground on the urban environment, so that the rail transit engineering and the city are more integrated. Meanwhile, the high-speed running of the train passing through the station and the fast and slow train combination and cross-line direct operation mode constructed by resistance are met, and the diversified and differentiated service requirements of passengers are met.
Drawings
Figure 1 is a schematic view of a tunnel ventilation system of the present invention.
Figure 2 is a schematic view of another tunnel ventilation system of the present invention.
Description of the labeling: 1. a pressure relief vent (piston vent); 2. relief wells (piston windwells); 3. a dividing wall; 4. a line crossing; 5. a stop line; 6. a parking line tunnel; 7. an electric air valve; 8. a muffler.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1
The embodiment provides a tunnel ventilation system for pressure relief of a rail transit underground overtaking station, which can be arranged as follows: the upper and lower tunnels of the underground overtaking station are respectively provided with an overtaking line 4 and a stop line 5; the crossing line 4 is a line for the train to cross the station at a high speed and is positioned on the side far away from the station platform; the stop line 5 is a 5-way stop line for the arrival of the train and is positioned at the side close to the station platform; the dividing wall 3 is arranged between the overtravel line 4 and the stop line 5; as shown in fig. 1 and 2, the tunnel ventilation system of the present embodiment is provided at both ends of a station, and includes: the air pressure relief device comprises a pressure relief hole 1, a piston air hole 1, a pressure relief well 2 and a piston air well 2; the pressure relief hole 1 is combined with the piston air hole 1, arranged above the stop line 5 and in the range of the partition wall 3; the pressure relief well 2 is combined with the piston air well 2 and communicated with the pressure relief hole 1 and the piston air hole 1 through a piston air duct.
The piston air hole 1 is provided with an electric air valve 7, and the piston air channel is provided with a silencer 8.
In the embodiment, the piston air hole and the pressure relief hole 1 which are used for piston ventilation and the piston air shaft 2 and the pressure relief well 2 are used, so that the civil engineering investment for independently arranging the pressure relief hole 1 and the pressure relief well 2 is reduced, the influence on the ground environment and the landscape is reduced, and the economic benefit and the social benefit are enlarged.
Furthermore, the area As of the pressure relief hole 1 and the piston air hole 1 is more than or equal to the section area Ap of the parking line 5 tunnel at the position of the pressure relief hole 1, and is equal to the section area Ap of the tunnel, so that the pressure relief requirement can be met, and the civil engineering cost can be controlled to the maximum extent.
The area As and the position of the pressure relief hole 1 and the piston air hole 1 can furthest reduce the influence of the tunnel pressure and the piston air on station facilities and the environment in the station when a train passes through the station at a high speed. The method has obvious advantages in the aspect of realizing high-standard blank targets, assists in high-quality development of cities, and has obvious social benefits.
The invention discloses an application of a tunnel ventilation system for pressure relief of an underground overtaking station of rail transit, which comprises the following steps:
when the station normally operates, the electric air valve 7 for keeping the piston air hole 1 is in an open state.
When the train passes through the overpass station at a high speed, the pressure in the tunnel sequentially passes through the pressure relief hole 1 and the piston air hole 1, and the piston air channel and the pressure relief well 2 and the piston air well 2 are relieved to the outside.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.
Claims (2)
1. The utility model provides a tunnel ventilation system that is used for track traffic underground to cross station pressure release, characterized in that, track traffic underground crosses the station and includes: the system comprises a tunnel, a platform, a crossing line, a stop line and a partition wall, wherein the crossing line is a line for a train to cross the station at a high speed and is positioned on the side far away from the platform of the station; the stop line is a train arrival stop line and is positioned on the side close to the station platform; the dividing wall is arranged between the stop line and the overtravel line; its tunnel ventilation system includes: the pressure relief hole, the piston air hole, the pressure relief well and the piston air well;
the pressure relief hole and the piston air hole are arranged in a combined mode, are arranged above the stop line and are within the range of the partition wall;
the pressure relief well is combined with the piston air shaft and communicated with the pressure relief hole and the piston air hole through a piston air duct.
2. The tunnel ventilation system for pressure relief of the underground railway transit station as claimed in claim 1, wherein the areas of the pressure relief hole and the piston air hole are larger than or equal to the area of the cross section of the parking line tunnel at the position of the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210512887.7A CN114876552A (en) | 2022-05-11 | 2022-05-11 | Tunnel ventilation system for pressure relief of underground railway station of rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210512887.7A CN114876552A (en) | 2022-05-11 | 2022-05-11 | Tunnel ventilation system for pressure relief of underground railway station of rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114876552A true CN114876552A (en) | 2022-08-09 |
Family
ID=82675589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210512887.7A Pending CN114876552A (en) | 2022-05-11 | 2022-05-11 | Tunnel ventilation system for pressure relief of underground railway station of rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114876552A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2931792Y (en) * | 2006-08-09 | 2007-08-08 | 上海市城市建设设计研究院 | Piston vent system of subway station |
| CN101050708A (en) * | 2007-05-14 | 2007-10-10 | 上海市隧道工程轨道交通设计研究院 | Piston fan pressure releasing method for subway |
| CN102720519A (en) * | 2012-06-21 | 2012-10-10 | 广州地铁设计研究院有限公司 | Novel tunnel ventilation system for subway station |
| CN202946180U (en) * | 2012-11-01 | 2013-05-22 | 广州地铁设计研究院有限公司 | Tunnel ventilation system suitable for underground public transit system |
| CN205154221U (en) * | 2015-10-21 | 2016-04-13 | 西南交通大学 | Tunnel ventilation system of track traffic shield door standard |
| CN208122886U (en) * | 2018-01-31 | 2018-11-20 | 广州地铁设计研究院有限公司 | A kind of Tunnel Ventilation System of subway station |
| CN112298212A (en) * | 2020-11-24 | 2021-02-02 | 中铁第四勘察设计院集团有限公司 | Tramcar station wiring with both overtaking and parking functions and running method thereof |
| CN113339037A (en) * | 2021-07-16 | 2021-09-03 | 广州地铁设计研究院股份有限公司 | Point type exhaust and smoke exhaust station tunnel ventilation system without rail top air duct |
| CN214450906U (en) * | 2021-04-08 | 2021-10-22 | 中铁第六勘察设计院集团有限公司 | Rail transit station with bidirectional turn-back and fault vehicle parking functions |
-
2022
- 2022-05-11 CN CN202210512887.7A patent/CN114876552A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2931792Y (en) * | 2006-08-09 | 2007-08-08 | 上海市城市建设设计研究院 | Piston vent system of subway station |
| CN101050708A (en) * | 2007-05-14 | 2007-10-10 | 上海市隧道工程轨道交通设计研究院 | Piston fan pressure releasing method for subway |
| CN102720519A (en) * | 2012-06-21 | 2012-10-10 | 广州地铁设计研究院有限公司 | Novel tunnel ventilation system for subway station |
| CN202946180U (en) * | 2012-11-01 | 2013-05-22 | 广州地铁设计研究院有限公司 | Tunnel ventilation system suitable for underground public transit system |
| CN205154221U (en) * | 2015-10-21 | 2016-04-13 | 西南交通大学 | Tunnel ventilation system of track traffic shield door standard |
| CN208122886U (en) * | 2018-01-31 | 2018-11-20 | 广州地铁设计研究院有限公司 | A kind of Tunnel Ventilation System of subway station |
| CN112298212A (en) * | 2020-11-24 | 2021-02-02 | 中铁第四勘察设计院集团有限公司 | Tramcar station wiring with both overtaking and parking functions and running method thereof |
| CN214450906U (en) * | 2021-04-08 | 2021-10-22 | 中铁第六勘察设计院集团有限公司 | Rail transit station with bidirectional turn-back and fault vehicle parking functions |
| CN113339037A (en) * | 2021-07-16 | 2021-09-03 | 广州地铁设计研究院股份有限公司 | Point type exhaust and smoke exhaust station tunnel ventilation system without rail top air duct |
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