CN202391447U - Single-head tunneling no-air-door roadway type ventilation structure of super-long tunnel - Google Patents
Single-head tunneling no-air-door roadway type ventilation structure of super-long tunnel Download PDFInfo
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- CN202391447U CN202391447U CN2011205226082U CN201120522608U CN202391447U CN 202391447 U CN202391447 U CN 202391447U CN 2011205226082 U CN2011205226082 U CN 2011205226082U CN 201120522608 U CN201120522608 U CN 201120522608U CN 202391447 U CN202391447 U CN 202391447U
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Abstract
The utility model relates to the field of tunnel construction and ventilation, particularly relates to a single-head tunneling no-air-door roadway type ventilation structure of a super-long tunnel and solves the problems in the prior art that a long-distance tunnel ventilation structure has great construction investment, poor ventilation effect, high energy consumption and the like. The single-head tunneling no-air-door roadway type ventilation structure comprises a wind conveying tunnel and a dirt discharging tunnel, wherein driving cross tunnels and a walking cross tunnel are arranged between the wind conveying tunnel and the dirt discharging tunnel; two sets of pressing type ventilators are distributed in the wind conveying tunnel and a first driving cross tunnel which is closest to a tunnel face of the wind conveying tunnel and the tunnel face of the dirt discharging tunnel, and are led to the tunnel face of the wind conveying tunnel and the tunnel face of the dirt discharging tunnel through pipelines; blocking walls are arranged in the driving cross tunnels and the walking cross tunnel between the first driving cross tunnel and a tunnel opening of the wind conveying tunnel; and the blocking wall and one discharging axial flow exhaust fan are arranged in the a tunnel opening of the dirt discharging tunnel or in the tunnel. The single-head tunneling no-air-door roadway type ventilation structure has the advantages of good ventilation effect, short ventilation and smoke discharging time, and accelerated construction speed; the wind conveying distance is short, the length of a ventilation pipe is greatly shortened and the operation cost is reduced; and the working environment is improved and the single-head tunneling no-air-door roadway type ventilation structure is suitable for a double-hole tunnel provided with the driving cross tunnels between the two holes.
Description
Technical field
The utility model relates to the construction ventilation of tunnel field, is specially the solely no air door ventilation by ducts structure of head driving of a kind of super long tunnel.
Background technology
In the method for tunnel drilling and blasting construction, produce blasting fume because of blowing out, cause the environment pollution of the scope of operation; Influence the normal construction in tunnel, therefore need to adopt the ventilation mode, fresh wind is delivered to work plane; In order to the dilution blasting fume, blasting fume is dropped to the concentration of permission, satisfy the workman and excavate the operation needs.Especially in Extra Long Tunnel Construction, the quality of aeration technology not only is related to the healthy of operating personnel, also will directly influence the construction speed in tunnel, is the key point of control construction economy cost.At present; The length that is directed to the parallel double hole is during apart from constructing tunnel; Owing to about every interval 350m one walkway or garage's passage can be set, just in time constituted the ventilation by ducts condition, need be through not increasing parallel heading or adopting the mode of partition wall to satisfy the ventilation by ducts condition.But traditional ventilation by ducts structure; Adopt omnidistance forced ventilation mode mostly, need increase input high-power forced ventilation machine and jet blower, and also each hole need be laid long apart from ventilating duct; So just increased construction cost greatly; Along with the continuous driving in tunnel, the ventilation energy consuming ratio is bigger, and ventilation effect is not ideal.
Summary of the invention
The utility model existing long exists apart from the ventilation by ducts structure that adopts in the tunnel ventilation construction that construction has high input, problems such as ventilation effect is poor, energy consumption height in order to solve, and the solely no air door ventilation by ducts structure of head driving of a kind of super long tunnel is provided.
The utility model is to adopt following technical scheme to realize: super long tunnel is the no air door ventilation by ducts structure of head driving solely; Comprise the air-supply hole and the blowdown hole that laterally arrange; Also comprise the horizontal hole that connects with the air-supply hole; Be interval with respectively the horizontal hole of garage and the Heng Dong of People's Bank of China that connect with both between air-supply hole and the blowdown hole; The innovative point of the utility model is in the air-supply hole and distance air-supply hole face and nearest two the forced ventilation machines of first garage horizontal hole place's interlaced arrangement of blowdown hole face; Wherein be provided with the ventilation straight tube between forced ventilation machine and the air-supply hole face, be provided with ventilation bend pipe between another forced ventilation machine and the blowdown hole face, be equipped with first block wall in horizontal hole of first garage and the horizontal hole in horizontal hole of all garages and People's Bank of China between the hole, hole of blowing through the horizontal hole of first garage; In hole, blowdown hole or hole, be provided with second block wall, and between second block wall and blowdown hole face, be provided with one and efflux the axial flow induced draft fan.
Adopt the ventilating structure of the utility model; Fresh wind is got in the air-supply hole by air-supply hole, hole and Heng Dong hole; Be pressed onto air-supply hole face and blowdown hole face respectively through two forced ventilation machines and ventilating duct; In the blowdown hole, efflux under the positive action of axial flow induced draft fan simultaneously, the dirty wind in the air-supply hole then gets into the blowdown hole through the horizontal hole of first garage and discharges, and makes between air-supply hole and the blowdown hole and forms dash.Increase along with digging distance; After the horizontal hole of next garage connects; The forced ventilation machine is pushed ahead, simultaneously a last Heng Dong of garage is carried out shutoff, and efflux the axial flow induced draft fan and second block wall can advance to the face direction according to digging distance and air draft effect.
Compare with existing omnidistance forced ventilation mode, the utility model ventilation effect is good, and the ventilation smoke exhaust time is short, and flowing resistance is little, has accelerated construction speed; It is long apart from the tunnel ventilation requirement only to adopt three typhoon machines to satisfy, and air supplying distance is short, and air chimney length also shortens greatly, has reduced disposable input, has also significantly reduced the ventilation maintenance workload, and operation cost obviously reduces; Improved operating environment greatly, obtained good ventilation effect, accelerated Tunnel Construction Schedule, economic benefit and obvious social benefit are applicable to the double-hole tunnel of establishing the horizontal hole of garage between all two holes.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Among the figure: the 1-hole of blowing; 2-blowdown hole; The horizontal hole of 3-; The Heng Dong of 4-garage; The Heng Dong of 5-People's Bank of China; 6-air-supply hole face; 7-blowdown hole face; 8-first Heng Dong of garage; 9-forced ventilation machine; 10-ventilation straight tube; 11-ventilation bend pipe; The 12-hole, hole of blowing; 13-first block wall; Hole, 14-blowdown hole; 15-second block wall; 16-effluxes the axial flow induced draft fan.
The specific embodiment
Super long tunnel is the no air door ventilation by ducts structure of head driving solely; As shown in Figure 1; Comprise the air-supply hole 1 and blowdown hole 2 that laterally arrange; Also comprise the horizontal hole 3 that connects with the air-supply hole; Be interval with respectively the horizontal hole 4 of garage and the horizontal hole 5 of People's Bank of China that connect with both between air-supply hole and the blowdown hole, in air-supply hole 1 and nearest two the forced ventilation machines 9 of first garage horizontal hole 8 place's interlaced arrangement of distance air-supply hole face 6 and blowdown hole face 7, a forced ventilation machine and blow and be provided with ventilation straight tube 10 between the hole face 6 wherein; Be provided with between another forced ventilation machine and the blowdown hole face 7 through being equipped with first block wall 13 in the horizontal hole in horizontal hole of all garages and People's Bank of China between the horizontal hole 8 of ventilation bend pipe 11, the first garages in the horizontal hole 8 of first garage and the air-supply hole, hole 12; In hole 14, blowdown hole or hole, be provided with second block wall 15, and between second block wall 15 and blowdown hole face 7, be provided with one and efflux axial flow induced draft fan 16.In practice of construction, required Wind Coverage Calculation and forced ventilation machine in the hole, to efflux axial flow induced draft fan type selecting be well known to those of ordinary skill in the art.
During concrete the construction, the phase I goes into operation ventilates with the normal construction ventilation scheme early stage, at the Heng Dong hole 2 forced ventilation machines is set, and is incorporated into respectively in two holes, and fresh air is delivered to face, and foul atmosphere is outside barrel is discharged the hole.After second stage treats that the little mileage direction in two holes connects; When construction length was longer, because ventilation length has exceeded the ultimate range of its blower fan, oneself warp of simple forced ventilation can't satisfy the air capacity of construction needs; Adopt the ventilating structure of the utility model; Two ventilation fans at horizontal hole are removed, moved to the nearest place, the horizontal hole of garage of distance air-supply hole face, and openings position is provided with 1 and effluxes the axial flow induced draft fan in the blowdown hole; The Heng Dong of other garage, the Heng Dong of People's Bank of China to having connected seal; Fresh wind is got in the air-supply hole by air-supply hole, hole and Heng Dong hole, is pressed onto air-supply hole face and blowdown hole face respectively through two forced ventilation machines and ventilating duct, in the blowdown hole, effluxes under the positive action of axial flow induced draft fan simultaneously; Dirty wind in the air-supply hole then gets into the blowdown hole through the horizontal hole of first garage and discharges, and makes between air-supply hole and the blowdown hole and forms dash.Increase along with digging distance; After the horizontal hole of next garage connects; The forced ventilation machine is pushed ahead, simultaneously a last Heng Dong of garage is carried out shutoff, and efflux the axial flow induced draft fan and second block wall can advance to the face direction according to digging distance and air draft effect.
Application example
Long flat speedway rainbow ladder frontier passes and mountains tunnel total length 13.1km building one of long tunnel, also is simultaneously speedway Changzhi, Chang'an to smooth-going section controlled engineering at present domestic; Adopt the described ventilating structure of the utility model, its single port driving has reached 5300 meters, has well solved speciality highway tunnel ventilation technical barrier; Improved operating environment greatly, the toxic dust in the control construction pollutes effectively, has protected that the constructor's is healthy; Reduce construction investment, accelerated Tunnel Construction Schedule.
Claims (1)
1. the only head of super long tunnel tunnels no air door ventilation by ducts structure; Comprise the air-supply hole (1) and blowdown hole (2) that laterally arrange; Also comprise the horizontal hole (3) that connects with the air-supply hole; Be interval with respectively the Heng Dong of garage (4) and the Heng Dong of People's Bank of China (5) that connect with both between air-supply hole and the blowdown hole; It is characterized in that in air-supply hole (1) and apart from air-supply hole face (6) and the first nearest Heng Dong of garage (8) of blowdown hole face (7), locating two forced ventilation machines of interlaced arrangement (9); Wherein be provided with ventilation straight tube (10) between forced ventilation machine and the air-supply hole face (6); Be provided with ventilation bend pipe (11) between another forced ventilation machine and the blowdown hole face (7), be equipped with first block wall (13) in the horizontal hole in horizontal hole of all garages and People's Bank of China between first Heng Dong of garage (8) and the air-supply hole, hole (12) through first Heng Dong of garage (8); In hole, blowdown hole (14) or hole, be provided with second block wall (15), and between second block wall (15) and blowdown hole face (7), be provided with one and efflux axial flow induced draft fan (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205226082U CN202391447U (en) | 2011-12-14 | 2011-12-14 | Single-head tunneling no-air-door roadway type ventilation structure of super-long tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205226082U CN202391447U (en) | 2011-12-14 | 2011-12-14 | Single-head tunneling no-air-door roadway type ventilation structure of super-long tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391447U true CN202391447U (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205226082U Expired - Fee Related CN202391447U (en) | 2011-12-14 | 2011-12-14 | Single-head tunneling no-air-door roadway type ventilation structure of super-long tunnel |
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| CN (1) | CN202391447U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155079A (en) * | 2014-08-06 | 2014-11-19 | 山东大学 | Fluid-flow analog device and method for water bursting and mud emerging model test of tunnel |
| CN104314600A (en) * | 2014-09-05 | 2015-01-28 | 中铁五局（集团）有限公司 | Method for constructing and ventilating three parallel tunnels |
| CN104405430A (en) * | 2014-10-08 | 2015-03-11 | 西南交通大学 | Ventilation system and ventilation method for single-cavern large-section extra-long tunnel construction |
| CN104879157A (en) * | 2015-06-04 | 2015-09-02 | 四川省交通运输厅公路规划勘察设计研究院 | Road tunnel construction ventilating structure and ventilation control method thereof |
| CN105350996A (en) * | 2015-10-26 | 2016-02-24 | 中铁二十局集团有限公司 | Plateau long tunnel multi-dead end ventilation construction method |
| CN105937400A (en) * | 2016-06-22 | 2016-09-14 | 西安科技大学 | One-time tunneling two-roadway-retained excavating operation production line |
| CN106761926A (en) * | 2016-11-17 | 2017-05-31 | 北京科技大学 | A kind of soft or hard closing blocking method of underground coal mine anaerobic driving face |
| CN109667614A (en) * | 2018-12-18 | 2019-04-23 | 中铁十六局集团有限公司 | One kind being used for long distance tunnel relay-type method of ventilation |
| CN110439604A (en) * | 2019-08-16 | 2019-11-12 | 中铁隧道局集团有限公司 | Super-long tunnel construction long range method of ventilation |
| CN112228137A (en) * | 2020-11-03 | 2021-01-15 | 云南交投集团云岭建设有限公司 | Method for improving ventilation of extra-long tunnel |
| CN113356917A (en) * | 2021-07-19 | 2021-09-07 | 陕西冶金设计研究院有限公司 | Air return device and air return method for long-distance single-head tunneling roadway |
| CN114575858A (en) * | 2022-03-14 | 2022-06-03 | 中交一公局集团有限公司 | Combined tunneling method for double-lane single-width main tunnel and single-lane rescue channel of highway tunnel |
| CN114704284A (en) * | 2022-01-26 | 2022-07-05 | 中交二公局东萌工程有限公司 | Roadway type ventilation method for vertical shaft auxiliary parallel middle pilot tunnel and advanced double main tunnels |
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2011
- 2011-12-14 CN CN2011205226082U patent/CN202391447U/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155079B (en) * | 2014-08-06 | 2016-08-24 | 山东大学 | Fluid-flow analogy apparatus and method in tunnel water bursting factor model test |
| CN104155079A (en) * | 2014-08-06 | 2014-11-19 | 山东大学 | Fluid-flow analog device and method for water bursting and mud emerging model test of tunnel |
| CN104314600A (en) * | 2014-09-05 | 2015-01-28 | 中铁五局（集团）有限公司 | Method for constructing and ventilating three parallel tunnels |
| CN104314600B (en) * | 2014-09-05 | 2016-08-24 | 中铁五局（集团）有限公司 | Article three, the construction ventilation method of Parallel Tunnel |
| CN104405430A (en) * | 2014-10-08 | 2015-03-11 | 西南交通大学 | Ventilation system and ventilation method for single-cavern large-section extra-long tunnel construction |
| CN104879157A (en) * | 2015-06-04 | 2015-09-02 | 四川省交通运输厅公路规划勘察设计研究院 | Road tunnel construction ventilating structure and ventilation control method thereof |
| CN104879157B (en) * | 2015-06-04 | 2017-03-15 | 四川省交通运输厅公路规划勘察设计研究院 | Highway tunnel construction aeration structure and its ventilation amount control method |
| CN105350996A (en) * | 2015-10-26 | 2016-02-24 | 中铁二十局集团有限公司 | Plateau long tunnel multi-dead end ventilation construction method |
| CN105350996B (en) * | 2015-10-26 | 2017-05-17 | 中铁二十局集团有限公司 | Plateau long tunnel multi-dead end ventilation construction method |
| CN105937400B (en) * | 2016-06-22 | 2018-05-08 | 西安科技大学 | It is a kind of once to tunnel Liu Sheshuan lanes digging operation production line |
| CN105937400A (en) * | 2016-06-22 | 2016-09-14 | 西安科技大学 | One-time tunneling two-roadway-retained excavating operation production line |
| CN106761926A (en) * | 2016-11-17 | 2017-05-31 | 北京科技大学 | A kind of soft or hard closing blocking method of underground coal mine anaerobic driving face |
| CN109667614A (en) * | 2018-12-18 | 2019-04-23 | 中铁十六局集团有限公司 | One kind being used for long distance tunnel relay-type method of ventilation |
| CN110439604A (en) * | 2019-08-16 | 2019-11-12 | 中铁隧道局集团有限公司 | Super-long tunnel construction long range method of ventilation |
| CN110439604B (en) * | 2019-08-16 | 2021-03-19 | 中铁隧道局集团有限公司 | Long-distance ventilation method for construction of extra-long tunnel |
| CN112228137A (en) * | 2020-11-03 | 2021-01-15 | 云南交投集团云岭建设有限公司 | Method for improving ventilation of extra-long tunnel |
| CN113356917A (en) * | 2021-07-19 | 2021-09-07 | 陕西冶金设计研究院有限公司 | Air return device and air return method for long-distance single-head tunneling roadway |
| CN114704284A (en) * | 2022-01-26 | 2022-07-05 | 中交二公局东萌工程有限公司 | Roadway type ventilation method for vertical shaft auxiliary parallel middle pilot tunnel and advanced double main tunnels |
| CN114575858A (en) * | 2022-03-14 | 2022-06-03 | 中交一公局集团有限公司 | Combined tunneling method for double-lane single-width main tunnel and single-lane rescue channel of highway tunnel |
| CN114575858B (en) * | 2022-03-14 | 2024-04-16 | 中交一公局集团有限公司 | Combined tunneling method for highway tunnel double-lane single-frame positive tunnel and single-lane rescue channel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20191214 |