CN106121707A - The most two-tube municipal administration and highway are grown up the ventilating system of shield tunnel and method of ventilation - Google Patents
The most two-tube municipal administration and highway are grown up the ventilating system of shield tunnel and method of ventilation Download PDFInfo
- Publication number
- CN106121707A CN106121707A CN201610685662.6A CN201610685662A CN106121707A CN 106121707 A CN106121707 A CN 106121707A CN 201610685662 A CN201610685662 A CN 201610685662A CN 106121707 A CN106121707 A CN 106121707A
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- Prior art keywords
- shield
- section
- tunnel
- civil engineering
- smoke duct
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention belongs to municipal administration and vcehicular tunnel technical field, it is specifically related to the most two-tube a kind of municipal administration and highway is grown up the ventilating system of shield tunnel and method of ventilation, it is characterized in that, the top of described shield tunnel is provided with civil engineering smoke duct, the two ends of described shield tunnel are provided with the smoke evacuation ventilating shaft being connected with civil engineering smoke duct, are provided with smoke exhaust fan and air-valve in described smoke evacuation ventilating shaft；The middle part of described shield tunnel is longitudinally divided into shield A section, shield B section, shield C section successively along tunnel, described shield A section, the civil engineering smoke duct area equation of shield C section, described shield B section civil engineering smoke duct area is the 2/5 3/5 of shield A section civil engineering smoke duct area, and described shield B section and the shield tunnel two ends open cut secretly section of burying are respectively provided with jet blower.The present invention reduces the ventilation scheme dimensional requirement to shield section of growing up, reduce engineering construction difficulty and construction risk, saved engineering-built cost.
Description
Technical field
The invention belongs to municipal administration and vcehicular tunnel technical field, be specifically related to the most two-tube municipal administration of one and highway is grown up shield
The ventilating system in structure tunnel and method of ventilation.
Background technology
The selection of submerged tunnel air vent mode, with length of tunnel, traffic flow, running mode, hole environmental requirement, tunnel
The many factors such as construction method are relevant.The current tunnel ventilation mode commonly used has complete horizontal, half horizontal, longitudinal ventilation mode and indulges
Discharge fume to ventilation+emphasis.
Complete horizontal and semi-transverse ventilation mode need to arrange special air duct and Ventilator Room, and civil engineering costs investment is big, and the later stage ventilates
Running cost is high, can effectively keep backlayering during fire, but owing to its air-flow provided is horizontal, climing with flue gas in tunnel
Prolong direction vertical, it is impossible to effectively control flue gas and longitudinally spreading along tunnel.
Longitudinal ventilation mode can give full play to the traffic of automobile and rise pressure (Piston Action Wind), has good to upstream flue gas control
Effect processed, has good flue gas for normal one-way traffic and controls effect.But under traffic jam and two-direction road operating mode,
The upstream and downstream of burning things which may cause a fire disaster all there is a need to personnel and the vehicle evacuated, and longitudinal direction is the most distinguished and the most admirable is full of the whole Close Tunnel in burning things which may cause a fire disaster downstream by fire smoke
Territory, personnel escape and fire suppression to downstream bring the biggest threat, thus longitudinal smoke evacuation system does not ensures that under burning things which may cause a fire disaster
The safety of wind direction driver and conductor.
Longitudinal ventilation+emphasis fume exhausting type, arranges civil engineering smoke duct at tunnel upper, carries out longitudinal ventilation at ordinary times, can
To give full play to the traffic liter pressure of automobile, during fire, carry out emphasis smoke evacuation, by opening the multiple exhaust openings near burning things which may cause a fire disaster, just
Closely flue gas is discharged vehicular tunnel via smokejack, reduce the impact on staff in tunnel escape to greatest extent.
Based on this, current domestic the most two-tube a lot of shield tunnels the most all have employed longitudinal ventilation+point type central exhaust
Scheme.Jet blower divides two sections of layouts (arranging along two ends, tunnel toward middle part), arranges civil engineering smoke duct in shield section simultaneously
And jet blower, cause shield section bigger.The increase of shield section will bring engineering construction difficulty, construction risk and engineering
The increase of cost, constrains shield method application in submerged tunnel of growing up to a certain extent.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of jet blower and divide three sections of layouts, jet blower position and soil
Build the ventilating system of shield tunnel under water and the method for ventilation that mutually stagger in smoke duct position.
The technical solution adopted in the present invention is:
The most two-tube a kind of municipal administration and highway are grown up the ventilating system of shield tunnel, it is characterised in that include shield tunnel, described
The top of shield tunnel is provided with civil engineering smoke duct, and the two ends of described shield tunnel are provided with and are connected with civil engineering smoke duct
Smoke evacuation ventilating shaft, be provided with smoke exhaust fan and air-valve in described smoke evacuation ventilating shaft；The middle part of described shield tunnel longitudinally depends on along tunnel
Secondary shield A section, shield B section, the shield C section of being divided into, described shield A section, the civil engineering smoke duct area equation of shield C section, described
Shield B section civil engineering smoke duct area is the 2/5-3/5 of shield A section civil engineering smoke duct area, described shield B section and shield tunnel
The open cut secretly section of burying in two ends, road is respectively provided with jet blower.
The more excellent area of described shield B section civil engineering smoke duct is the 1/2 of shield A section civil engineering smoke duct area.
Mutually stagger with civil engineering smoke duct position in the jet blower position being positioned at described shield B section, described shield B section
Have overlapping in jet blower and shield A section, the projection of shield C section civil engineering smoke duct transverse section.
The most two-tube a kind of municipal administration and highway are grown up the method for ventilation of shield tunnel, comprise the following steps:
(1) described shield tunnel is carried out longitudinal induced draught by arranging jet blower；
(2) by the civil engineering smoke duct being arranged in described shield tunnel, and the shield being connected with this civil engineering smoke duct
The smoke evacuation of two ends, tunnel ventilating shaft, smoke exhaust fan, air-valve, carry out emphasis smoke evacuation during fire；
(3) the shield section longitudinal direction whole process of described shield tunnel is provided with separate civil engineering smoke duct, and longitudinally divides along tunnel
Become three sections；The civil engineering smoke duct area of three sections is unequal, when shield A section or the section breaking out of fire of shield C, selects from burning things which may cause a fire disaster relatively
Near jet blower carries out single-ended smoke evacuation；When the section breaking out of fire of shield B, the jet blower at shield tunnel two ends is arranged simultaneously
Cigarette.
The invention have the benefit that
1, the submerged tunnel draft type of the present invention is simple, on the basis of conventional longitudinal ventilation+emphasis smoke-discharging and ventilating mode, logical
Cross the method that jet blower divides three sections of layouts, jet blower position mutually to stagger with civil engineering smoke duct position, both ensure that logical
Wind and the functional effect of smoke evacuation, decrease again the dimensional requirement to shield section, reduces engineering construction difficulty and construction risk,
Save engineering-built cost；
2, the present invention is applicable to the most two-tube municipal administration and highway shield tunnel, and two ends, tunnel exist the open cut secretly section of burying.
Accompanying drawing explanation
Fig. 1: Tunnel Ventilation System arranges schematic diagram；
Fig. 2: Tunnel Ventilation System fire working smoke evacuation schematic diagram (fire is positioned at shield A section or C section)；
Fig. 3: Tunnel Ventilation System fire working smoke evacuation schematic diagram (fire is positioned at shield B section)；
Fig. 4-Fig. 5: shield A section, shield C section schematic cross-sectional view (shield Blower-free section)；
Fig. 6-Fig. 7: shield B section schematic cross-sectional view (shield has fan section).
Detailed description of the invention
In Fig. 1-7,1-jet blower, 2-discharges fume ventilating shaft, 3-runway, 4-civil engineering smoke duct, 5-smoke exhaust fan and wind
Valve, 6-shield tunnel, 7-shield A section, 8-shield B section, 9-shield C section, the 10-open cut secretly section of burying, 11-tunnel lower floor evacuates logical
Road, 12-tunnel bottom structure line, 13-airflow direction, 14-fire point, 15-tunnel roof construction line.
Embodiment
The most two-tube a kind of municipal administration and highway are grown up the ventilating system of shield tunnel, including shield tunnel 6, shield tunnel 6
Top be provided with civil engineering smoke duct 4, the two ends of shield tunnel 6 are provided with the Smoke being connected with civil engineering smoke duct 4
Well 2, is provided with smoke exhaust fan and air-valve 5 in smoke evacuation ventilating shaft 2；The middle part of shield tunnel 6 is longitudinally divided into shield A section successively along tunnel
7, shield B section 8, shield C section 9, shield A section 7, civil engineering smoke duct 4 area equation of shield C section 9, the civil engineering row of shield B section 8
Cigarette air channel 4 area is the 2/5-3/5 of civil engineering smoke duct 4 area of shield A section 7, shield B section 8 and shield tunnel 6 two ends open cut
Secretly the section of burying 10 is respectively provided with jet blower 1.
The 1/2 of civil engineering smoke duct 4 area that more excellent area is shield A section 7 of the civil engineering smoke duct 4 of shield B section 8.
Mutually stagger with civil engineering smoke duct 4 position in jet blower 1 position being positioned at shield B section 8, the jet of shield B section 8
Have overlapping in blower fan 1 and shield A section 7, the projection of shield C section 9 civil engineering smoke duct 4 transverse section.
The most two-tube a kind of municipal administration and highway are grown up the method for ventilation of shield tunnel, comprise the following steps:
(1) shield tunnel 6 is carried out longitudinal induced draught by arranging jet blower 1；
(2) by the civil engineering smoke duct 4 being arranged in shield tunnel 6, and the shield tunnel being connected with this civil engineering smoke duct 4
Two ends, road 6 smoke evacuation ventilating shaft 2, smoke exhaust fan and air-valve 5, carry out emphasis smoke evacuation during fire；
(3) shield section longitudinal direction whole process is provided with separate civil engineering smoke duct 4, and is divided longitudinally into three sections along shield tunnel 6；Three
Civil engineering smoke duct 4 area of section is unequal, when shield A section 7 or section 9 breaking out of fire of shield C, selects penetrating close to burning things which may cause a fire disaster
Flow fan 1 carries out single-ended smoke evacuation；When the section breaking out of fire of shield B8, the jet blower 1 at shield tunnel 6 two ends is arranged simultaneously
Cigarette.
Below by combining accompanying drawing, the present invention is described further.
The invention discloses a kind of 1 point three sections layouts of jet blower, jet blower 1 position and civil engineering smoke duct 4 position
The most two-tube shield tunnel ventilating system and the method for ventilation (referring to Fig. 1) of growing up mutually staggered, is specifically described as follows:
1) to the most two-tube shield tunnel of growing up, in often pipe tunnel row track 3, carry out longitudinally luring by arranging jet blower 1
Conducting wind, direction of ventilation is consistent with garage direction, is aerated taking a breath by vehicle Piston Action Wind during nominal situation, unlatching during obstruction
Jet blower 1 is aerated ventilation.
2) to the most two-tube shield tunnel of growing up, in often pipe tunnel row track 3, by being arranged in shield tunnel 6
Civil engineering smoke duct 4, and two ends, tunnel smoke evacuation ventilating shaft 2, smoke exhaust fan and the air-valve 5 etc. being connected with this civil engineering smoke duct 4
Assembly, carries out emphasis smoke evacuation during fire.
3) two-tube shield section runway longitudinal direction whole process is provided with separate civil engineering smoke duct 4, and longitudinally divides along tunnel
Become three sections (shield A section 6, shield B section 7, shield C sections 8).When shield A section 6 or section 9 breaking out of fire of shield C, select from burning things which may cause a fire disaster
Nearer jet blower 1 carries out single-ended smoke evacuation (referring to Fig. 2)；When section 8 breaking out of fire of shield B, the jet blower 1 at two ends, tunnel
Carry out discharge fume (referring to Fig. 3) simultaneously.So, civil engineering smoke duct 4 area of three sections is designed as unequal, shield A section 7 He
Shield C section 9 is designed (referring to Fig. 4) by required normal civil engineering smoke duct 4 area S, shield B section civil engineering smoke duct 4
Area is designed by about S/2.
4) selection of position is set about jet blower 1, in order to reduce shield section, 1 point three sections layouts of jet blower, cloth
Seated position refers to Fig. 5 corresponding to shield B section 8() and two ends, the tunnel open cut secretly section of burying 10.Wherein it is positioned at the jet wind of shield B section 6
Machine 1 and shield A section 7 and shield C section 9 civil engineering smoke duct 4 transverse section project have overlapping.
It is respectively provided with jet blower 1, in shield A section 7 and shield C section 9 in shield B section 8 and shield tunnel 6 two ends open excavation section
It is not provided with jet blower 1.Owing to the position civil engineering smoke duct 4 all with normal size that arranges of jet blower 1 arranges position phase
Stagger mutually, decrease the dimensional requirement to shield section, can reach the mesh ground reducing shield diameter, reduce engineering construction difficulty
And construction risk, save engineering-built cost.
This method of ventilation is applicable to the most two-tube municipal administration and highway shield tunnel, and two ends, tunnel exist the open cut secretly section of burying.
The local carried out the present invention in two-tube grow up shield tunnel ventilation form and details changes, without departing from this
Bright claims limited range.
Above 1 embodiment of the present invention is described in detail, but content has been only presently preferred embodiments of the present invention, no
The practical range for limiting the present invention can be considered.All impartial changes made according to the present patent application scope and improvement etc., all
Within should still belonging to the patent covering scope of the present invention.
Claims (4)
1. the most two-tube municipal administration and highway are grown up the ventilating system of shield tunnel, it is characterised in that include shield tunnel, institute
The top stating shield tunnel is provided with civil engineering smoke duct, and the two ends of described shield tunnel are provided with and civil engineering smoke duct phase
Smoke evacuation ventilating shaft even, is provided with smoke exhaust fan and air-valve in described smoke evacuation ventilating shaft；The middle part of described shield tunnel is along tunnel longitudinally
It is divided into shield A section, shield B section, shield C section, described shield A section, the civil engineering smoke duct area equation of shield C section, institute successively
State the 2/5-3/5 that shield B section civil engineering smoke duct area is shield A section civil engineering smoke duct area, described shield B section and shield
The open cut secretly section of burying in two ends, tunnel is respectively provided with jet blower.
The most two-tube a kind of municipal administration the most according to claim 1 and highway are grown up the ventilating system of shield tunnel, its feature
Being, the more excellent area of described shield B section civil engineering smoke duct is the 1/2 of shield A section civil engineering smoke duct area.
The most two-tube a kind of municipal administration the most according to claim 1 and highway are grown up the ventilating system of shield tunnel, its feature
Being, mutually stagger with civil engineering smoke duct position in the jet blower position being positioned at described shield B section, penetrating of described shield B section
Have overlapping in flow fan and shield A section, the projection of shield C section civil engineering smoke duct transverse section.
4. the most two-tube municipal administration and highway are grown up a method of ventilation for shield tunnel, comprise the following steps:
(1) described shield tunnel is carried out longitudinal induced draught by arranging jet blower；
(2) by the civil engineering smoke duct being arranged in described shield tunnel, and the shield being connected with this civil engineering smoke duct
The smoke evacuation of two ends, tunnel ventilating shaft, smoke exhaust fan, air-valve, carry out emphasis smoke evacuation during fire；
(3) the shield section longitudinal direction whole process of described shield tunnel is provided with separate civil engineering smoke duct, and longitudinally divides along tunnel
Become three sections；The civil engineering smoke duct area of three sections is unequal, when shield A section or the section breaking out of fire of shield C, selects from burning things which may cause a fire disaster relatively
Near jet blower carries out single-ended smoke evacuation；When the section breaking out of fire of shield B, the jet blower at shield tunnel two ends is arranged simultaneously
Cigarette.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610685662.6A CN106121707B (en) | 2016-08-19 | 2016-08-19 | Underwater two-tube municipal administration and highway are grown up the ventilating system and method for ventilation of shield tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610685662.6A CN106121707B (en) | 2016-08-19 | 2016-08-19 | Underwater two-tube municipal administration and highway are grown up the ventilating system and method for ventilation of shield tunnel |
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| Publication Number | Publication Date |
|---|---|
| CN106121707A true CN106121707A (en) | 2016-11-16 |
| CN106121707B CN106121707B (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610685662.6A Active CN106121707B (en) | 2016-08-19 | 2016-08-19 | Underwater two-tube municipal administration and highway are grown up the ventilating system and method for ventilation of shield tunnel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110714795A (en) * | 2019-10-17 | 2020-01-21 | 聊城大学 | Ventilation device for underwater suspension tunnel |
| CN111720151A (en) * | 2020-06-10 | 2020-09-29 | 中铁第五勘察设计院集团有限公司 | Tunnel structure with rectangular cross section |
| CN113530590A (en) * | 2021-07-30 | 2021-10-22 | 中铁第四勘察设计院集团有限公司 | Double-hole one-way long and large underwater highway tunnel ventilation system and ventilation method thereof |
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| CN111720151B (en) * | 2020-06-10 | 2021-10-22 | 中铁第五勘察设计院集团有限公司 | Tunnel structure with rectangular cross section |
| CN113530590A (en) * | 2021-07-30 | 2021-10-22 | 中铁第四勘察设计院集团有限公司 | Double-hole one-way long and large underwater highway tunnel ventilation system and ventilation method thereof |
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|---|---|
| CN106121707B (en) | 2019-04-19 |
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Effective date of registration: 20190211 Address after: 300000 Tianjin Free Trade Test Zone (Airport Economic Zone) No. 36 West Central Road Applicant after: CHINA RAILWAY LIUYUAN GROUP CO., LTD. Address before: 300000 Hongqiao District, Tianjin City, Bridge South East Road Applicant before: Zhongtie Tunnel Survey and Design Inst., Ltd. |
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