CN202768046U - Jet ventilation structure for tunnel construction of single inclined shaft and double main tunnels - Google Patents
Jet ventilation structure for tunnel construction of single inclined shaft and double main tunnels Download PDFInfo
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- CN202768046U CN202768046U CN2012203118478U CN201220311847U CN202768046U CN 202768046 U CN202768046 U CN 202768046U CN 2012203118478 U CN2012203118478 U CN 2012203118478U CN 201220311847 U CN201220311847 U CN 201220311847U CN 202768046 U CN202768046 U CN 202768046U
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- inclined shaft
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Abstract
The utility model relates to a ventilation technology of tunnels and underground engineering and particularly relates to a jet ventilation structure for the tunnel construction of single inclined shaft and double main tunnels. According to the jet ventilation structure, the problems of great construction input, poor ventilation effect, high energy consumption and the like in a traditional lane type ventilation structure are solved. The jet ventilation structure comprises a left main tunnel, a right main tunnel and an inclined shaft, wherein the left main tunnel and the right main tunnel are arranged in parallel; the inclined shaft is directly intersected with the inclined shaft; transverse channels which are respectively communicated with the left main tunnel and the right main tunnel are arranged between the left main tunnel and the right main tunnel at intervals; two jet fans are arranged in the left main tunnel intersected with the inclined shaft; two local fans are arranged in front of each jet fan and are respectively connected with tunnel faces of the left main tunnel and the right main tunnel through air pipes; a main fan is arranged in the right main tunnel; an external exhaust pipe is arranged between the main fan and an inclined shaft mouth; and air doors are arranged in the transverse tunnels. The jet ventilation structure has the advantages that favorable ventilation effect, short ventilation and smoke exhaust time and small ventilation resistance are realized; the construction progress is accelerated; the air supply distance of the air pipe is shortened; a large number of air pipes are saved; the maintenance workload of the air pipes is reduced; the less labor force is required; and integral economic benefits are remarkable.
Description
Technical field
The utility model relates to tunnel and underground construction aeration technology, is specially the two positive hole tunnel construction jet flow ventilating structures of a kind of monocline well.
Background technology
Fast development along with China railways, highway and diversion works construction, speciality and the tunnel of growing up are more and more, realize rapid construction in order to set up excavation face, most forms of construction work that the inclined shaft service gallery is set that adopt, inclined shaft is the inside and outside unique passage in contact tunnel, and air intake and air draft are all finished by inclined shaft.The tunnel that enters the transportation construction of Shuan Zhengdong rail for present monocline well by it, usually there are four scope of operations to construct at the same time, the situation that belongs to two positive holes many excavation faces parallel construction, after slope construction is finished and is entered positive hole, the plant equipment that many excavation faces parallel construction causes dropping in the hole increases, and the in-cavity construction environment pollution is serious, along with deepening continuously of tunnel piercing, construction environment also can further worsen, and construction ventilation becomes one of key factor that affects this type of tunnel construction.But traditional ventilation by ducts structure, mostly adopt omnidistance forced ventilation mode, need increase input high-power forced ventilation machine and jet blower, and long Distance Ventilation pipeline need to be laid in each hole, so just greatly increased construction cost, along with the continuous driving in tunnel, the ventilation energy consuming ratio is larger, and ventilation effect is not ideal.
Summary of the invention
There are the problems such as construction has high input, ventilation effect is poor, energy consumption is high in the utility model in order to solve the ventilation by ducts structure that adopts in the two positive hole tunnel constructions of existing monocline well, provides a kind of monocline well two positive hole tunnel construction jet flow ventilating structures.
The utility model is to adopt following technical scheme to realize: the two positive hole tunnel construction jet flow ventilating structures of monocline well, comprise the Zuo Zhengdong that be arranged in parallel, right positive hole and the inclined shaft that directly intersects with positive hole, a left side, be interval with respectively the transverse passage-way that connects with both between Zuo Zhengdong and the right positive hole, innovative point of the present utility model is that being provided with two in the left positive hole of intersecting with inclined shaft lays respectively at the inclined shaft both sides, and respectively towards the jet blower of two faces of Zuo Zhengdong, every jet blower the place ahead is provided with local fan, be provided with the ventilation straight tube between local fan and the left positive hole face, be provided with the ventilation bend pipe that passes transverse passage-way between local fan and the right positive hole face, be provided with the main fan relative with the inclined shaft bottom position in the right positive hole, be provided with the external air exhausting tube that passes transverse passage-way between main fan and the slope mouth, be provided with air door in this transverse passage-way.
The utility model is used the longitudinal ventilation with jetblower technology, the integral planar structure of the two positive hole tunnels of monocline well can't form " U " type air channel under the perfect condition, but the part has possessed " U " type air channel condition in two positive holes, so the principle that adopts here is topical application construction jet flow aeration technology in two positive holes.At first utilize small-power Wind Volume main fan and major diameter pneumatic hose, by inclined shaft dirty wind in the tunnel is discharged, utilize simultaneously jet blower to introduce fresh wind by inclined shaft, fresh wind is incorporated into the inclined shaft bottom as the fresh wind regime in " U " type air channel in the construction jet flow ventilation, this fresh wind regime is utilized by two " U " type air channel secondary distribution of inclined shaft both sides, two construction jet flow ventilation systems have so just been formed in the inclined shaft both sides, each excavation face rationally incorporates in the two positive holes of monocline well the construction jet flow aeration technology respectively by local fan and the fresh wind of airduct force feed.
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; Shortened the air duct blow distance; a large amount of airducts have been saved; also reduced the airduct maintenance workload; less labor; whole economic efficiency is apparent in view; the two positive hole many excavation faces parallel operations construction ventilation difficult problems of monocline well have successfully been solved; make the two positive hole construction length of the tunnel monocline well of growing up under the prerequisite of using this structure, continue to prolong; for constructing tunnel provides a good working environment; very favourable to labour protection and safe construction, improve the operation comfortableness, thereby improved efficiency; economic benefit and social benefit are remarkable, and this structure is particularly useful for the execution conditions that inclined shaft adopts the rail transportation.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Among the figure: the left positive hole of 1-; The right positive hole of 2-; The 3-inclined shaft; The 4-transverse passage-way; The 5-face; The 6-jet blower; The 7-local fan; 8-ventilation straight tube; 9-ventilation bend pipe; The 10-main fan; The 11-external air exhausting tube; The 12-air door.
The specific embodiment
The two positive hole tunnel construction jet flow ventilating structures of monocline well, as shown in Figure 1, comprise the left positive hole 1 that be arranged in parallel, right positive hole 2 and the inclined shaft 3 that directly intersects with positive hole, a left side, be interval with respectively the transverse passage-way 4 that connects with both between Zuo Zhengdong and the right positive hole, in the left positive hole 1 of intersecting with inclined shaft, be provided with two and lay respectively at the inclined shaft both sides, and respectively towards the jet blower 6 of two faces 5 of Zuo Zhengdong, every jet blower the place ahead is provided with local fan 7, be provided with ventilation straight tube 8 between local fan and left positive hole 1 face, be provided with the ventilation bend pipe 9 that passes transverse passage-way 4 between local fan and right positive hole 2 faces, be provided with the main fan 10 relative with inclined shaft 3 bottom positions in the right positive hole 2, be provided with the external air exhausting tube 11 that passes transverse passage-way between main fan 10 and inclined shaft 3 well heads, be provided with air door 12 in this transverse passage-way.
During implementation, two jet blowers by inclined shaft bottom will fresh distinguished and admirable injection arrive local fan place separately, be sent to respectively again the face in Zuo Zhengdong, right positive hole by ventilation straight tube or ventilation bend pipe by local fan, the dirty wind that is refluxed by face is all drained in the right positive hole, be flowed at last main fan place, shaft bottom, by outside external air exhausting tube, the unified discharge of the inclined shaft hole, the transverse passage-way that main fan is set must utilize the air door shutoff, prevents dirty wind circulation by main fan.Along with tunnel excavation deeply and the continuous perforation reach local fan of transverse passage-way, shorten the air duct blow distance, prolong the tunnel air supplying distance, realize the long distance construction ventilation.
Claims (1)
1. two positive hole tunnel construction jet flow ventilating structures of a monocline well, comprise the Zuo Zhengdong (1) that be arranged in parallel, right positive hole (2) and the inclined shaft (3) that directly intersects with positive hole, a left side, be interval with respectively the transverse passage-way (4) that connects with both between Zuo Zhengdong and the right positive hole, it is characterized in that being provided with two in the Zuo Zhengdong (1) that intersects with inclined shaft lays respectively at the inclined shaft both sides, and respectively towards the jet blower (6) of two faces of Zuo Zhengdong (5), every jet blower the place ahead is provided with local fan (7), be provided with ventilation straight tube (8) between local fan and Zuo Zhengdong (1) face, be provided with the ventilation bend pipe (9) that passes transverse passage-way (4) between local fan and You Zhengdong (2) face, be provided with the main fan (10) relative with inclined shaft (3) bottom position in the right positive hole (2), be provided with the external air exhausting tube (11) that passes transverse passage-way between main fan (10) and inclined shaft (3) well head, be provided with air door (12) in this transverse passage-way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203118478U CN202768046U (en) | 2012-06-30 | 2012-06-30 | Jet ventilation structure for tunnel construction of single inclined shaft and double main tunnels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203118478U CN202768046U (en) | 2012-06-30 | 2012-06-30 | Jet ventilation structure for tunnel construction of single inclined shaft and double main tunnels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768046U true CN202768046U (en) | 2013-03-06 |
Family
ID=47774629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203118478U Expired - Fee Related CN202768046U (en) | 2012-06-30 | 2012-06-30 | Jet ventilation structure for tunnel construction of single inclined shaft and double main tunnels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768046U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104806281A (en) * | 2015-03-04 | 2015-07-29 | 中铁十七局集团第二工程有限公司 | Inclined shaft ventilation based high pressure air supply system in long tunnel hole |
| CN105256775A (en) * | 2015-11-17 | 2016-01-20 | 中国长江三峡集团公司 | Ventilation system arrangement structure during construction period of underground cavern of hydropower station |
| CN105986833A (en) * | 2015-01-29 | 2016-10-05 | 西南交通大学 | Inclined shaft auxiliary type tunnel ventilation system with partition plates |
| CN106837401A (en) * | 2017-03-23 | 2017-06-13 | 中铁五局集团成都工程有限责任公司 | Narrow tunnel isolates aeration structure |
| CN108915753A (en) * | 2018-08-09 | 2018-11-30 | 桂林航天工业学院 | The short-track length bounding method in tunnel for Extra-long Highway Tunnel circulating ventilation system |
| CN109026114A (en) * | 2018-08-09 | 2018-12-18 | 湖南科技大学 | Downstream tunnels length bounding method for the Extra-long Highway Tunnel closed system of ventilation |
| CN109083672A (en) * | 2018-08-09 | 2018-12-25 | 桂林航天工业学院 | Upstream tunnels length bounding method for Extra-long Highway Tunnel circulating ventilation system |
| CN113931655A (en) * | 2021-10-08 | 2022-01-14 | 贵州省公路工程集团有限公司 | Relay press-in type and roadway type combined ventilation system |
| CN114046170A (en) * | 2021-11-03 | 2022-02-15 | 中铁第一勘察设计院集团有限公司 | Construction ventilation system for simultaneously operating four faces of ultra-long tunnel by using transverse channel |
-
2012
- 2012-06-30 CN CN2012203118478U patent/CN202768046U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105986833A (en) * | 2015-01-29 | 2016-10-05 | 西南交通大学 | Inclined shaft auxiliary type tunnel ventilation system with partition plates |
| CN104806281A (en) * | 2015-03-04 | 2015-07-29 | 中铁十七局集团第二工程有限公司 | Inclined shaft ventilation based high pressure air supply system in long tunnel hole |
| CN104806281B (en) * | 2015-03-04 | 2017-02-22 | 中铁十七局集团第二工程有限公司 | Inclined shaft ventilation based high pressure air supply system in long tunnel hole |
| CN105256775A (en) * | 2015-11-17 | 2016-01-20 | 中国长江三峡集团公司 | Ventilation system arrangement structure during construction period of underground cavern of hydropower station |
| CN106837401A (en) * | 2017-03-23 | 2017-06-13 | 中铁五局集团成都工程有限责任公司 | Narrow tunnel isolates aeration structure |
| CN108915753A (en) * | 2018-08-09 | 2018-11-30 | 桂林航天工业学院 | The short-track length bounding method in tunnel for Extra-long Highway Tunnel circulating ventilation system |
| CN109026114A (en) * | 2018-08-09 | 2018-12-18 | 湖南科技大学 | Downstream tunnels length bounding method for the Extra-long Highway Tunnel closed system of ventilation |
| CN109083672A (en) * | 2018-08-09 | 2018-12-25 | 桂林航天工业学院 | Upstream tunnels length bounding method for Extra-long Highway Tunnel circulating ventilation system |
| CN109083672B (en) * | 2018-08-09 | 2019-11-12 | 桂林航天工业学院 | Upstream tunnels length bounding method for Extra-long Highway Tunnel circulating ventilation system |
| CN109026114B (en) * | 2018-08-09 | 2019-12-06 | 湖南科技大学 | downstream tunnel length extreme value determination method for closed ventilation system of extra-long highway tunnel |
| CN113931655A (en) * | 2021-10-08 | 2022-01-14 | 贵州省公路工程集团有限公司 | Relay press-in type and roadway type combined ventilation system |
| CN114046170A (en) * | 2021-11-03 | 2022-02-15 | 中铁第一勘察设计院集团有限公司 | Construction ventilation system for simultaneously operating four faces of ultra-long tunnel by using transverse 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: 20130306 Termination date: 20200630 |