CN108561169A - The combined type Ventilating Design Method in Urban Underground interchange tunnel - Google Patents
The combined type Ventilating Design Method in Urban Underground interchange tunnel Download PDFInfo
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- CN108561169A CN108561169A CN201810199281.6A CN201810199281A CN108561169A CN 108561169 A CN108561169 A CN 108561169A CN 201810199281 A CN201810199281 A CN 201810199281A CN 108561169 A CN108561169 A CN 108561169A
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- 238000013461 design Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000009423 ventilation Methods 0.000 claims abstract description 95
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003546 flue gas Substances 0.000 claims abstract description 14
- 238000007664 blowing Methods 0.000 claims abstract description 11
- 238000005516 engineering process Methods 0.000 claims abstract description 8
- 238000005192 partition Methods 0.000 claims abstract description 5
- 238000004364 calculation method Methods 0.000 claims description 23
- 239000000779 smoke Substances 0.000 claims description 15
- 238000010276 construction Methods 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 7
- 238000010790 dilution Methods 0.000 claims description 6
- 239000012895 dilution Substances 0.000 claims description 6
- 239000003517 fume Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000012795 verification Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000002829 reductive effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
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Abstract
The invention discloses a kind of combined type Ventilating Design Methods in Urban Underground interchange tunnel, partition board is built above ring road inner tunnel section forms air delivery duct, air-supply inclined shaft or vertical shaft and Ventilator Room are built for ring road, it calculates and determines each main line tunnel, the required airflow of ring road controls standard, it is served as theme the required jet blower of tunnel configuration longitudinal ventilation using Network Ventilation technology, it is that ring road configures breeze fan using half transverse blowing blower press Computing Principle, verifies main tunnel and ring road wind turbine flue gas control ability in case of fire and power of fan is modified.The ventilation network dismantling of Urban Underground intercommunication tunnel complexity is ring road and two, main line tunnel part by the present invention, is simplified draft fan collocation form, is reduced fan energy consumption, the flue gas control being more advantageous under fire condition.
Description
Technical field
The present invention relates to highway tunnel ventilation engineering design technology fields, and in particular to a kind of Urban Underground interchange tunnel
Road combined type Ventilating Design Method.
Background technology
To solve the urban transport problems that urban population rapid growth is caused, while considering the effective of urban ground resource
It utilizes, Urban Underground grade separation has become the new trend of Traffic Development planning.It is identical as traditional ground Grade Separation Project, underground
Grade separation includes ring road and two, main tunnel part, Ramp Alignment bending, and for elevation across larger, main tunnel is then often linear straight,
Structure type is relatively easy.There are the intercommunication that is connected of ring road and ring road, ring road and main tunnel, entire grade separation system shapes for underground interchange
At complicated ventilation network, and numerous shuntings present in network make the distinguished and admirable distribution shape in tunnel with confluence node
Formula is extremely complex.From the point of view of the above several points, determine it is a kind of it is rational, suitable for underground interchange tunnel ventilation scheme at
For a thorny problem urgently to be resolved hurrily.
For long highway tunnel, both at home and abroad used by tradition ventilation mode can be mainly divided into laterally, it is longitudinal and
Three kinds of combined type, several draft types cut both ways.Longitudinal Ventilation has the spies such as construction cost is low, construction difficulty is small
Point, but for the fume treatment under fire condition and the noise processed problem under tunnel operation condition, transverse type ventilation compared with
It can have a clear superiority for Longitudinal Ventilation.The country uses more ventilation scheme for Longitudinal Ventilation at present.But for ground
It is interconnected between this tunnel of lower cervical spine and for the tunneled network for the form complexity that diverges, is using simple Longitudinal Ventilation side
When formula, the transmission of air quantity and assignment problem can so that ventilation wind speed difference is big between each section in tunnel and power of fan is high, jet stream
Wind turbine configuration mode is complicated.Therefore, in conjunction with Urban Underground interchange tunnel structure feature, if by the ring road of structure type complexity
Separate with main tunnel, half transverse type is respectively adopted and Longitudinal is aerated, main line tunnel and ring road can reduced
Evade ring road and the complexity distinguished and admirable assignment problem at main tunnel point confluence node while air output so that ventilation form becomes letter
It is single.In addition, the introducing of transversal ventilation mode is also more conducive to the flue gas control problem under fire condition.
Invention content
Problem to be solved by this invention is new for the planning of this Traffic Development of Urban Underground interchange tunnel
The operation ventilation problem of trend, from Urban Underground interchange tunnel structure feature and tunnel composition, in conjunction with traditional longitudinal
Formula and transverse type ventilation feature, it is proposed that a kind of combined type Ventilating Design Method suitable for Urban Underground interchange tunnel.
For achieving the above object, the technical solution adopted by the present invention is：
The combined type Ventilating Design Method in Urban Underground interchange tunnel, includes the following steps：
A, partition board above ring road inner tunnel section is set and forms air delivery duct；
B, it is that ring road builds air-supply inclined shaft or vertical shaft and Ventilator Room；
C, basis《Ventilation Design for Highway Tunnel detailed rules and regulations》Each main line tunnel dilution CO of (JTGT D702-02-2014) calculating,
Dilute the required airflow needed for dust and tunnel air exchanging；
D, basis《Ventilation Design for Highway Tunnel detailed rules and regulations》(JTGT D702-02-2014) calculates each circle in connection main line tunnel
Road dilutes the required airflow needed for CO, dust and ventilation；
E, it using Network Ventilation software for calculation, establishes comprising the tunnel ventilation network including main tunnel and ring road, serves as theme
The required jet blower of tunnel configuration longitudinal ventilation；
F, basis《Ventilation Design for Highway Tunnel detailed rules and regulations》(JTGT D702-02-2014), it is complete using half transverse blowing wind turbine
It is that ring road configures breeze fan to press Computing Principle；
G, using Network Ventilation software for calculation, burning things which may cause a fire disaster is added in main tunnel, critical wind is determined according to designing peak flow scale
The flue gas control ability of main tunnel jet blower in case of fire, the breeze fan work(under the conditions of normal operation are verified after speed
Rate is modified power of fan when cannot meet flue gas control.
H, it combines《Ventilation Design for Highway Tunnel detailed rules and regulations》(JTGT D702-02-2014) determines that designing peak flow scale determines cigarette
Gas production quantity, and discharged fume in case of fire ability according to half lateral exhaust fan total head calculation formula verification ring road wind turbine, when
Breeze fan power under the conditions of normal operation is modified power of fan when cannot meet smoke evacuation ability.
Described Network Ventilation software for calculation such as SES etc..
The main line tunnel ventilation mode is Longitudinal Ventilation, calculates and uses Network Ventilation technology, to including when calculating
Ventilation network map is established in main tunnel with the entire tunneled network including ring road.
In addition to needing gravity-flow ventilation power, tunnel edge when main tunnel is calculated using Network Ventilation technology recited above
Calculation procedure is brought in the routine draft power consideration such as windburn pressure under journey and local ventilation resistance, traffic ventilation force, fire condition into
Outside, it also needs ring road air quantity importing main tunnel and the Ventilation Effect in main tunnel is accounted for.
The ring road uses blowing-type semi-transverse ventilation mode, the draft type that can farthest utilize ventilation by trattic
Power reduces air-supply air quantity and power of fan in main tunnel.
The air delivery duct size should be in combination with the required airflow under the conditions of normal operation and the exhaust smoke level under fire condition
Standard is built according to by requirement of the blast velocity control in air duct within 20m/s.
When ring road construction period there is construction service incline, service incline can be used as the ring road blowing shaft, do not had to
In addition it builds.
The breeze fan should select reversible wind turbine, should be utilized in conjunction with fire smoke amount when calculating smoke exhaust fan power
Air draft type blower press Computing Principle is calculated.
The air-supply in the Urban Underground intercommunication tunnel combined type method of ventilation main tunnel and ring road under the conditions of normal operation
It can realize clarification in certain roles, jet blower can prevent flue gas adverse current, ring road inner blower from passing through reversion in main tunnel in case of fire
Tunnel can be discharged in fume centralized.Compared to the current country using for more Longitudinal Ventilation mode, this method can reduce
Fan energy consumption and the flue gas control being more advantageous under fire condition.
Design method of the present invention, which has, to be simplified complicated Urban Underground interchange permanent ventilation of tunnel wind turbine layout, reduces fortune
It seeks draft fan power and increases the advantage of flue gas control effect in the case of tunnel fire hazard.With city fast development and examine
Consider the rare present situation of ground resource, which has more wide application prospect.
Description of the drawings
Fig. 1 is each main line tunnel, ring road and air-supply inclined shaft in Urban Underground interchange tunnel in the embodiment of the present invention
Schematic diagram；
Fig. 2 is the air delivery duct schematic diagram built above ring road tunnel cross-section in the embodiment of the present invention；
Fig. 3 is that main tunnel ventilation calculates established ventilation network schematic diagram in the embodiment of the present invention；
Fig. 4 is main line tunnel longitudinal ventilation schematic diagram in the embodiment of the present invention；
Fig. 5 is ring road blowing-type semi-transverse ventilation schematic diagram in the embodiment of the present invention.
Specific implementation mode
The present invention is specifically described below by embodiment, embodiment is served only for carrying out the present invention further
Illustrate, should not be understood as limiting the scope of the invention, those skilled in the art makes according to the content of foregoing invention
Some nonessential modifications and adaptations also belong to the scope of protection of the invention.
In conjunction with attached drawing.
The present embodiment is by taking the Urban Underground intercommunication tunnel of the roads Xiamen Haicang harbor evacuating channel-Lu Ao as an example.Extra large deep blue harbor evacuating channel work
Journey is by the Lu Aolu (1-1,1-2) of south-north direction, east-west road of clearing out a harbour (2-1,2-2) and connection Lu Aolu and road of clearing out a harbour
Four ring roads (4,5,6,7) composition.Road design speed of clearing out a harbour is 80km/h, and the roads Lu Ao design speed is 60km/h, and ring road is set
Meter speed is 40km/h, and each circuit is unidirectional formation tunnel.Each line construction parametric statistics is shown in Table 1-1.
Each line construction parametric statistics of table 1-1
Formula Design of ventilation is combined to tunnel by taking the underground intercommunication tunnel as an example below.Detailed design procedure is：
A builds partition board above ring road inner tunnel section and forms air delivery duct.
When tunnel fire hazard scale is designed according to 30MW, fire smoke is 60m3/ s, in conjunction with ring road normal operation item
Supply air duct is designed and sized to 10.8m when design by air-supply air quantity result of calculation under part2。
B is that ring road builds air-supply inclined shaft and Ventilator Room.
The tunnel has applied C ring roads construction service incline in construction period, therefore it is ring road that can reserve the construction inclined shaft
It blows, without in addition building blowing shaft.Inclined shaft is subjected to fork transformation when air-supply and may respectively be CD (5,7) ring roads and AB
(4,6) ring road is blown.
C according to《Ventilation Design for Highway Tunnel detailed rules and regulations》(JTGT D702-02-2014), calculate each main line tunnel dilution CO,
Dilute the required airflow needed for dust and tunnel air exchanging.
Determining for required airflow control standard needs to follow safety, health and amenity standards, corresponding respectively to meet dilution
Ventilation volume required for CO, dilution dust and tunnel air exchanging.Specific formula for calculation can be from《Ventilation Design for Highway Tunnel is thin
Then》It inside checks in, therefore only lists the result of calculation of required airflow herein, as shown in table 1-2.
Each main line tunnel required airflow result of calculations of table 1-2
D according to《Ventilation Design for Highway Tunnel detailed rules and regulations》(JTGT D702-02-2014) calculates each circle in connection main line tunnel
Road dilutes the required airflow needed for CO, dust and ventilation.
Method for solving is similar to main line tunnel, does not have to only consider tunnel when calculating tunnel air exchanging required airflow and controlling standard
The minimum windspeed requirement of ventilation.Each ring road required airflow being calculated is as shown in table 1-3.
Each ring road required airflow result of calculations of table 1-3
| Ring road circuit | A ring roads (4) | B ring roads (6) | C ring roads (7) | D ring roads (5) |
| Design required airflow (m3/s) | 118.47 | 58.33 | 121.8 | 36.5 |
E is served as theme the required jet blower of tunnel configuration longitudinal ventilation using Network Ventilation technology.
The connectivity of tunneled network should be considered when being aerated calculating to main line tunnel and receives entire tunneled network
Enter limit of consideration.Therefore, to the ventilation network of the entire intercommunication tunnel building including ring road and main tunnel (figure when calculating
3).Main tunnel air quantity has part and flows into inside ring road when calculating, but in the wind turbine layout by adjusting each section in main line tunnel
Quantity is that ahead running flows to ensure that the ventilation volume in entire main line tunnel reaches wind direction in design ventilation standard and ring road
When direction, main line tunnel ventilation requirement can be met by calculating the wind turbine allocation plan of gained.
For tunnel ventilation power, calculate in addition to considering that gravity-flow ventilation power, traffic ventilation force, tunnel are hindered along journey and local ventilation
Outside power, it is also contemplated that blowing shaft imports air quantity in ring road and flows into the influence to main line tunnel ventilation behind main line tunnel.Due to air-supply
Tunnel traffic draft power utilization rate is higher under type semi-transverse ventilation mode, therefore blowing shaft is passed through the air quantity in ring road and is contemplated that
To flow along wagon flow direction and finally importing in main line tunnel.Therefore the part air quantity can only produce the partial sector after remittance
Raw to influence, when calculating can convert some effects to substitutes into calculation procedure along the increment of journey and coefficient of partial resistance.
Natural wind wind speed is taken as 3m/s when calculating, and is thought of as resistance, and traffic ventilation force is carried out according to traffic retardance speed
It calculates.Each section draft power result of calculation is as shown in table 1-4.
Each main line tunnel section draft power result of calculations of table 1-4
| Sector number | Gravity-flow ventilation power (N/m2) | Tunnel traffic wind-force (N/m all2) | Ring road air quantity additional drag (N/m2) |
| 1 | -36.00 | -4.38 | 0.00 |
| 2 | -14.38 | -1.20 | -10.48 |
| 3 | -11.14 | -3.48 | -11.91 |
| 4 | -7.92 | -0.23 | 0.00 |
| 5 | -16.51 | -0.43 | 0.00 |
| 6 | -36.28 | -4.09 | -21.41 |
| 7 | -24.45 | -9.26 | 0.00 |
| 8 | -26.74 | 0.00 | -23.29 |
| 9 | -24.25 | -0.05 | -11.37 |
| 10 | -32.22 | -11.90 | -37.50 |
Note："-" is represented as ventilation resistance in table, otherwise is ventilation power
Ventilation network is calculated using SES, when calculating selects 1120 type jet blowers, the main line tunnel being calculated
Wind turbine collocation form is as shown in tables 1 to 5.
Each main line tunnel section draft power result of calculations of table 1-5
F according to《Ventilation Design for Highway Tunnel detailed rules and regulations》(JTGT D702-02-2014) utilizes half transverse blowing blower press
Computing Principle is that ring road configures breeze fan.
In conjunction with breeze fan total head calculation formula：
Total head Pbtot=(terminal pressure needed for tunnel wind pressure+air delivery duct+air delivery duct static pressure difference+air delivery duct beginning dynamic pressure+company
Connect duct pressure loss) × 1.1
Can breeze fan total head be carried out to AB ring roads (4.6) and CD ring roads (5,7) respectively to calculate.The AB being calculated
Ring road (4,6) is with CD ring roads (5,7) blowing shaft domestic demand axial flow blower parameter to be mounted as shown in table 1-6.
Table 1-6 ring road breeze fan power computations
| Ring road type | Blower press | Air quantity | Power of fan | Wind turbine configures |
| CD ring roads (5,7) | 773Pa | 190m3/s | 228kW | 1 SDZ280, n735rpm |
| AB ring roads (4,6) | 1166Pa | 176m3/s | 297kW | 1 SDZ280, n735rpm |
G adds burning things which may cause a fire disaster, according to designing peak flow using Network Ventilations software for calculation or self-compiling programs such as SES in main tunnel
Scale verifies the flue gas control ability of main tunnel jet blower in case of fire after determining critical wind velocity, when normal operation condition
Under breeze fan power cannot meet flue gas control when power of fan is modified.
Main tunnel blower needs to meet the requirement that fire location ventilation wind speed under fire condition is more than critical wind velocity.According to table
1-5 result of calculations, reed Australia south of road section calculates gained ventilation wind speed minimum, therefore sets up 30MW burning things which may cause a fire disaster in the section and be aerated meter
It calculates, it is 3.74m/s to be computed the minimum ventilation wind speed after setting up burning things which may cause a fire disaster, is more than critical ventilation wind speed 3m/s, therefore main line tunnel
Wind turbine allocation plan can meet the flue gas demand for control under fire condition.
H is combined《Ventilation Design for Highway Tunnel detailed rules and regulations》(JTGT D702-02-2014) determines that designing peak flow scale determines cigarette
Gas production quantity, and discharged fume in case of fire ability according to half lateral exhaust fan total head calculation formula verification ring road wind turbine, when
Breeze fan power under the conditions of normal operation is modified power of fan when cannot meet smoke evacuation ability.
When fire occurs for ring road, ring road breeze fan opens reversing mode, and nearby exhaust smoke valve is in opening state to fire location
Fire smoke is pumped into air duct and tunnel is discharged by blowing shaft by state, wind turbine.Blower fan work pattern and ventilation state be not at this time
Together, total head needed for wind turbine is calculated according to air draft type blower press formula, and formula is：
Total head petot=(beginning pressure needed for exhausting duct+exhausting duct static pressure difference-exhausting duct end dynamic pressure+connection air duct pressure
Power is lost) × 1.1
It calculates and considers least favorable situation, source position of getting fire is to be analyzed apart from inclined shaft farthest in ring road.Fire smoke
Amount is 60m3/s.Power needed for the smoke exhaust fan calculated is only 13kW, therefore breeze fan can meet under fire condition
Smoke evacuation demand.
Claims (7)
1. the combined type Ventilating Design Method in Urban Underground interchange tunnel, includes the following steps：
A, partition board above ring road inner tunnel section is set and forms air delivery duct；
B, it is that ring road builds air-supply inclined shaft or vertical shaft and Ventilator Room；
C, basis《Ventilation Design for Highway Tunnel detailed rules and regulations》(JTGT D702-02-2014) calculates each main line tunnel dilution CO, dilution
Required airflow needed for dust and tunnel air exchanging；
D, basis《Ventilation Design for Highway Tunnel detailed rules and regulations》Each ring road that (JTGT D702-02-2014) calculates connection main line tunnel is dilute
Release the required airflow needed for CO, dust and ventilation；
E, it using Network Ventilation software for calculation, establishes comprising the tunnel ventilation network including main tunnel and ring road, tunnel of serving as theme
Configure the required jet blower of longitudinal ventilation；
F, basis《Ventilation Design for Highway Tunnel detailed rules and regulations》(JTGT D702-02-2014) utilizes half transverse blowing blower press meter
It is that ring road configures breeze fan to calculate formula；
G, using Network Ventilation software for calculation, burning things which may cause a fire disaster is added in main tunnel, after determining critical wind velocity according to designing peak flow scale
Verify the flue gas control ability of main tunnel jet blower in case of fire, and breeze fan power under the conditions of normal operation
Power of fan is modified when cannot meet flue gas control；
H, it combines《Ventilation Design for Highway Tunnel detailed rules and regulations》(JTGT D702-02-2014) determines that designing peak flow scale determines that flue gas is given birth to
Cheng Liang, and discharged fume in case of fire ability according to half lateral exhaust fan total head calculation formula verification ring road wind turbine, and just
Breeze fan power under normal operation condition is modified power of fan when cannot meet smoke evacuation ability.
2. the combined type Ventilating Design Method in Urban Underground interchange as described in claim 1 tunnel, it is characterised in that：Circle
Road uses semi-transverse ventilation mode, needs to build partition board formation air delivery duct above tunnel cross-section, duct dimension combines normal fortune
The exhaust smoke level standard under required airflow and fire condition under the conditions of battalion, according to by blast velocity control in air duct within 20m/s
It is required that being built.
3. the combined type Ventilating Design Method in Urban Underground interchange as described in claim 1 tunnel, it is characterised in that：Circle
Road uses semi-transverse ventilation mode, needs to build air-supply inclined shaft or vertical shaft, when ring road construction period there is construction service incline,
Service incline can be used as ring road blowing shaft, without in addition building.
4. the combined type Ventilating Design Method in Urban Underground interchange as described in claim 1 tunnel, it is characterised in that：It is main
Threaded list road draft type is Longitudinal Ventilation, and main line tunnel ventilation, which calculates, uses Network Ventilation technology, to including main tunnel and circle
Entire tunneled network including road establishes ventilation network map, is aerated by program compiling or corresponding network ventilation software for calculation
It calculates.
5. the combined type Ventilating Design Method in Urban Underground interchange as claimed in claim 4 tunnel, it is characterised in that：It is main
Tunnel ventilation calculation is Network Ventilation technology, including gravity-flow ventilation power, tunnel are along journey and local ventilation resistance, ventilation by trattic
Windburn pressure and ring road air quantity under power, fire condition import Ventilation Effect of the main tunnel to main tunnel.
6. the combined type Ventilating Design Method in Urban Underground interchange as described in claim 1 tunnel, it is characterised in that：Circle
Road uses semi-transverse ventilation mode for blowing-type semi-transverse ventilation mode.
7. the combined type Ventilating Design Method in Urban Underground interchange as described in claim 1 tunnel, it is characterised in that：
Selected when wind turbine configuration and wind turbine can be reversed, air draft type wind should be utilized in conjunction with fire smoke amount when calculating smoke exhaust fan power
Machine total head Computing Principle is calculated.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778351A (en) * | 2019-11-27 | 2020-02-11 | 武汉中交交通工程有限责任公司 | Combined ventilation and smoke exhaust method for urban underground intercommunication tunnel |
| CN111075493A (en) * | 2019-12-05 | 2020-04-28 | 西南交通大学 | Design method for controlling wind speed by fire smoke of plateau tunnel |
| CN112253206A (en) * | 2020-10-20 | 2021-01-22 | 西南交通大学 | Highway tunnel ventilation system and method combining inclined shaft feeding and discharging and single transverse channel |
| CN112943339A (en) * | 2021-01-27 | 2021-06-11 | 清华大学 | Multi-ramp tunnel smoke discharge test system and test method |
| CN113482691A (en) * | 2021-08-16 | 2021-10-08 | 中铁第六勘察设计院集团有限公司 | Air quantity distribution determination method and device for air inlet type single-ramp highway tunnel ventilation system |
| CN115828403A (en) * | 2023-02-16 | 2023-03-21 | 西南交通大学 | Multi-branch tunnel network air demand calculation system and calculation method |
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