CN106437811B - The method and model of double short parallel pilot tunnel pressure discharge type ventilations in hole uniline tunnel - Google Patents
The method and model of double short parallel pilot tunnel pressure discharge type ventilations in hole uniline tunnel Download PDFInfo
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- CN106437811B CN106437811B CN201610607202.1A CN201610607202A CN106437811B CN 106437811 B CN106437811 B CN 106437811B CN 201610607202 A CN201610607202 A CN 201610607202A CN 106437811 B CN106437811 B CN 106437811B
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- tunnel
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Classifications
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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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
-
- 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
- E21F1/02—Test models
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
Abstract
The invention discloses a kind of short parallel pilot tunnel pressure discharge type method of ventilation in double hole uniline tunnels and its models, this method respectively opens up the short parallel pilot tunnel being mutually parallel with the main hole in tunnel on the outside of the inlet and outlet of double-hole tunnel, the entrance of the short parallel pilot tunnel is located at three point one of the main hole inlet and outlet in tunnel, and reversible axial flow wind turbine is placed in short parallel pilot tunnel；Simultaneously, garage's transverse passage-way and people's row transverse passage-way between double-hole tunnel also place reversible axial flow wind turbine, on the premise of ensureing the sum of required airflow in two main tunnels, garage's transverse passage-way and people's row transverse passage-way no more than the sum of its maximum allowable ventilation quantity, by adjusting reversible axial flow blower ventilation amount size and unstable airflow, and being discharged the wind in tunnel by the parallel pilot tunnel exhaust outlet in the exit in the main hole of double-hole tunnel everywhere in tunnel.It solves the control in tunnel and the wind speed variation of transverse passage-way junction and controls the energy consumption of wind turbine in minimum.
Description
Technical field
The present invention relates to tunnel ventilation technical fields, and in particular to a kind of double short parallel pilot tunnel pressure discharge types in hole uniline tunnel lead to
The method and model of wind.
Background technology
The middle and later periods in 20th century is entered, with the continuous progress of scientific and technical theory and industrial manufacturing level, tunnel leads to
Wind technology is also developed rapidly, successively occur transversal ventilation, semi-transverse ventilation, jet blower longitudinal ventilation mode,
Hole concentrates feeding formula, concentrates many force ventilation modes such as discharge formula, vertical shaft blow and exhaust, substantially meets dilution car tail
Gas improves the needs of sanitary standard.
With the raising of each side standard, different problems also immediately come, and the ventilation scale in tunnel gradually affects tunnel
Subject construction, input be lost it is also increasing, set generate Highway Tunnel Ventilation System " repairing must rise, and can not afford "
Contradiction has become a difficult point of highway industry, and at this stage, the ventilating engineering cost of long highway tunnel is larger, centainly
Become the bottleneck for restricting vcehicular tunnel development in degree.Extra-long Highway Tunnel ventilation is mostly using vertical shaft Network Ventilation, wherein setting
Standby and civil engineering costs accounts for the large percentage of total cost, and required expense is often square directly proportional to length of tunnel, and tunnel is built up
Running cost after being open to traffic also pay wages it is huge, thus explore tunnel ventilation the great economic value of energy saving optimizing problem and society anticipate
Justice.On the premise of Road Tunnel Safety requirement is met, reduce related electromechanics to the greatest extent and purchase with runing disbursement or striving
Optimal equalization point is found between the two, tries hard to be safety, science, green, this will be that following vcehicular tunnel construction needs for a long time
The probing direction faced.
The differentiation of various countries' highway tunnel ventilation mode is made a general survey of, draft type experienced in the middle and later periods in last century by transversal ventilation
To the development course of longitudinal ventilation.Modern major long tunnel mostly using double holes one-way traffic, draft type frequently with full jet machine,
The longitudinal ventilation mode of the multiple combinations such as perpendicular (oblique) well, axial flow blower.Moreover, explore the wind for solving tunnel and transverse passage-way junction
The control and control the energy consumption of wind turbine in minimum and of interest those skilled in the art hot spot that speed changes.
The content of the invention
In view of the defects in the prior art or insufficient, it is an object of the present invention to provide a kind of double hole uniline tunnels
The method and model of the short parallel pilot tunnel pressure discharge type ventilation in road.
In order to realize above-mentioned task, the present invention takes following technical solution：
A kind of method of the short parallel pilot tunnel pressure discharge type ventilation in double hole uniline tunnels, which is characterized in that this method is in double hole tunnels
The main hole inlet and outlet outside in tunnel in road respectively opens up the short parallel pilot tunnel being mutually parallel with the main hole in tunnel, the entrance of the short parallel pilot tunnel
At three point one of the main hole inlet and outlet in tunnel, reversible axial flow wind turbine is placed in short parallel pilot tunnel；Meanwhile in double hole tunnels
Garage's transverse passage-way and people's row transverse passage-way between road also place reversible axial flow wind turbine, are ensureing that two main tunnels, garage are horizontal logical
On the premise of the sum of required airflow in road and people's row transverse passage-way is no more than the sum of its maximum allowable ventilation quantity, by adjusting reversible axis
Flow type fan ventilation quantity size and cause tunnel in unstable airflow, and the parallel pilot tunnel in the exit by the main hole of double-hole tunnel everywhere
The wind in tunnel is discharged at exhaust outlet.
According to the present invention, the airflow direction in the main hole in the tunnel is consistent with wagon flow direction, and there are Piston Action Wind, tunnel masters
It is horizontal logical by garage's transverse passage-way or people's row there are air-flow exchange between garage's transverse passage-way in hole or people's row transverse passage-way and parallel pilot tunnel
Air quantity is decreased or increased behind road, and flow velocity is accordingly reduced or increased, and just adjusts reversible axial flow wind turbine at this time to supplement or reduce wind
It is too big that amount makes in the main hole in tunnel wind speed be unlikely to variation so that the air quantity in entire double-hole tunnel keeps balance.
The Piston Action Wind is the air-flow generated by vehicle movement in tunnel, and Piston Action Wind air force is determined according to actual measurement.
Reversible axial flow wind turbine in the short parallel pilot tunnel of the main hole entrance in tunnel plays scavenging action, the tunnel master
The reversible axial flow wind turbine in short parallel pilot tunnel at hole outlet, which serves, calms the anger, in garage's transverse passage-way and people's row transverse passage-way
Reversible axial flow wind turbine be then the air force for adjusting garage's transverse passage-way and people's row transverse passage-way；According to what is divulged information in the main hole in tunnel
Concrete condition, by the size direction of each section of wind speed in the main hole in tunnel, by adjusting the press-in of reversible axial flow wind turbine or discharge wind
The size of amount changes ventilation condition in the main hole in tunnel.
The reversible axial flow wind turbine uses band winding type synchronous motor or using band hydraulic servo type blade dynamic regulation
The axial fan of device.
The uninterrupted ventilation frequency of the reversible axial flow wind turbine is not less than 5 times per hour；It is smaller or special for the volume of traffic
Long tunnel using 3~4 times per hour, increases rate of ventilation in case of fire, while with the tunnel of longitudinal ventilation, in tunnel
Wind speed take a breath not less than 2.5m/s, maximum wind velocity is not higher than 15m/s.
The main hole in tunnel sets precipitron with garage's transverse passage-way or Ren Hang transverse passage-ways intersection.
The short parallel pilot tunnel pressure discharge type ventilation model in double hole uniline tunnels that the above method is established, including parallel double hole tunnels
There are garage's transverse passage-way and people's row transverse passage-way in road between the main hole of double-hole tunnel, which is characterized in that the main hole in the tunnel of double-hole tunnel into
Outlet outside respectively opens up the short parallel pilot tunnel being mutually parallel with the main hole in tunnel, the entrance of the short parallel pilot tunnel be located at the main hole in tunnel into
At three point one of outlet, reversible axial flow wind turbine is placed in short parallel pilot tunnel；Meanwhile the garage between double-hole tunnel is horizontal
Passage and people's row transverse passage-way also place reversible axial flow wind turbine.
Compared with prior art, the method for the short parallel pilot tunnel pressure discharge type ventilation in double hole uniline tunnels of the invention and its foundation
Having the technical effect that of bringing of model：
(1) not only there are the main hole construction of auxiliary, the effects that cutting draining of such as constructing when constructing；It is pre- advance geologic can be played simultaneously
It reports and opens up main the second construction surface of tunnel and carry out parallel operations, the effect accelerated construction progress greatly improves work efficiency.
(2) in the case where fire or emergency episode occurs, since the power lighting system of short parallel pilot tunnel is independently of master
The reliable fresh air that tunnel is capable of providing again, therefore short parallel pilot tunnel can be used as a bicycle road multiple line, become people
Member, the emergency evacuation passage of vehicle and rescue passage.Furthermore it is possible to manually or automatically control garage's transverse passage-way or people's row
The switch in transverse passage-way air port, with ensure the fugitive life of personnel or rescue when the security of the lives and property.
(3) since the hole of short parallel pilot tunnel is provided with reversible axial flow wind turbine, air-blower control room is not only provided further relative savings of
Place and ventilation equipment mounting cost, and also more collection neutralizes conveniently, so for the management and power supply of reversible axial flow wind turbine
Sidewalk investment and the expense conserved in the future are just saved, while also makes the live and work of staff more convenient.
(4) planning and enlarging in tunnel long term are conducive to, with the development of tunnel economic level in the neighbourhood, the volume of traffic
Increase, short parallel pilot tunnel can expand as Binary line's tunnel.
Description of the drawings
Fig. 1 is the short parallel pilot tunnel pressure discharge type ventilation model structure diagram in double hole uniline tunnels of the present invention；
Fig. 2 is enlarged drawing at A in Fig. 1；
Fig. 3 is enlarged drawing at B in Fig. 1.
Fig. 4 is enlarged drawing at C in Fig. 1；
Fig. 5 is enlarged drawing at D in Fig. 1；
The mark of Fig. 1 brackets represents respectively：Ith, the main hole in the first tunnel, the II, second main hole in tunnel, the 1, first reversible axis stream
Formula wind turbine, the 2, second reversible axial flow wind turbine, the 3, the 3rd reversible axial flow wind turbine, the 4, the 4th reversible axial flow wind turbine, the 5, the 5th
Reversible axial flow wind turbine, the 6, the 6th reversible axial flow wind turbine, the 7, first parallel pilot tunnel, the 8, second parallel pilot tunnel, the 9, the 3rd is parallel
Pilot tunnel, the 10, the 4th parallel pilot tunnel, 11, garage's transverse passage-way, 12, people's row transverse passage-way；
A, the main hole I in the first tunnel and 11 intersection point of garage's transverse passage-way, the main hole I in B, the first tunnel and 12 intersection point of people's row transverse passage-way,
C, the main hole II in the second tunnel and 12 intersection point of people's row transverse passage-way, the main hole II in D, the second tunnel and 11 intersection point of garage's transverse passage-way；
Fig. 2 is into Fig. 5, Q01、Q02The main hole I in respectively the first tunnel, the piston air quantity in the main hole II in the second tunnel, remaining word
Mother is air quantity in each passage.
Specific embodiment
Referring to Fig. 1 to Fig. 5, the present embodiment provides the method that a kind of short parallel pilot tunnel pressure discharge type in double hole uniline tunnels is divulged information,
This method respectively opens up the short parallel pilot tunnel being mutually parallel with the main hole in tunnel on the outside of the inlet and outlet of double-hole tunnel, the short parallel pilot tunnel
Entrance be located at three point one of the main hole in tunnel inlet and outlet, be placed with reversible axial flow wind turbine in short parallel pilot tunnel；Meanwhile double
Garage's transverse passage-way and people's row transverse passage-way between hole tunnel also place reversible axial flow wind turbine, are ensureing two main tunnels, garages
It, can by adjusting on the premise of the sum of required airflow in transverse passage-way and people's row transverse passage-way is no more than the sum of its maximum allowable ventilation quantity
Inverse axial fan ventilation quantity size and cause in tunnel unstable airflow everywhere, and by the main hole of double-hole tunnel exit it is parallel
The wind in tunnel is discharged at pilot tunnel exhaust outlet.
Airflow direction in the main hole in tunnel is consistent with wagon flow direction, and there are Piston Action Wind, garage's horizontal strokes in the main hole in tunnel
There are air-flow exchange between passage or people's row transverse passage-way and parallel pilot tunnel, air quantity subtracts after garage's transverse passage-way or people's row transverse passage-way
Small or increase, flow velocity are accordingly reduced or increased, and just adjust reversible axial flow wind turbine at this time makes tunnel master to supplement or reduce air quantity
It is too big to be unlikely to variation for wind speed in hole so that the air quantity in entire double-hole tunnel keeps balance.
The Piston Action Wind is the air-flow generated by vehicle movement in tunnel, and Piston Action Wind air force is determined according to actual measurement.
Reversible axial flow wind turbine in the short parallel pilot tunnel of the main hole entrance in tunnel plays scavenging action, the tunnel master
The reversible axial flow wind turbine in short parallel pilot tunnel at hole outlet, which serves, calms the anger, in garage's transverse passage-way and people's row transverse passage-way
Reversible axial flow wind turbine be then the air force for adjusting garage's transverse passage-way and people's row transverse passage-way；According to what is divulged information in the main hole in tunnel
Concrete condition, by the size direction of each section of wind speed in the main hole in tunnel, by adjusting the press-in of reversible axial flow wind turbine or discharge wind
The size of amount changes ventilation condition in the main hole in tunnel.
The short parallel pilot tunnel pressure discharge type ventilation model in double hole uniline tunnels that the above method is established, including parallel double hole tunnels
There are garage's transverse passage-way and people's row transverse passage-way in road between the main hole of double-hole tunnel, each on the outside of the main hole inlet and outlet in the tunnel of double-hole tunnel
The short parallel pilot tunnel being mutually parallel with the main hole in tunnel is opened up, the entrance of the short parallel pilot tunnel is located at three points of the main hole inlet and outlet in tunnel
At one, reversible axial flow wind turbine is placed in short parallel pilot tunnel；Meanwhile garage's transverse passage-way and people's row between double-hole tunnel
Transverse passage-way also places reversible axial flow wind turbine.
In the present embodiment, the second reversible axial flow wind turbine 2 is placed in the second parallel 8 exit of pilot tunnel, the 3rd parallel pilot tunnel 9 into
The 3rd reversible axial flow wind turbine 3 is placed at mouthful, the 4th parallel 10 entrance of pilot tunnel places the 4th reversible axial flow wind turbine 4, garage
Transverse passage-way 11 places the 5th reversible axial flow wind turbine 5, and people's row transverse passage-way 12 places the 6th reversible axial flow wind turbine 6.The main hole in tunnel
There are air-flow exchange between transverse passage-way and parallel pilot tunnel, after garage's transverse passage-way or people's row transverse passage-way air quantity reduce (or
Increase), flow velocity accordingly reduces (or increase), and can adjust wind turbine with reversible axial flow at this time makes to supplement (or reduction) air quantity
It is too big to be unlikely to variation for wind speed in the main hole in tunnel.
In the short parallel pilot tunnel pressure discharge type ventilation model in double hole uniline tunnels, the air quantity in entire double-hole tunnel keeps flat
Weighing apparatus.Wherein, the first reversible axial flow wind turbine 1 takes the gas flowed into garage's lateral road 11 in the main hole I in the first tunnel away discharge, the
Two reversible axial flow wind turbines 2 will supplement the gas flowed by the main hole I in the first tunnel in people's row transverse passage-way 12.3rd reversible axial flow
Wind turbine 3 takes the gas in people's row transverse passage-way in the main hole II in 12 second tunnels away discharge.4th reversible axial flow wind turbine 4 will supplement
The gas in garage's lateral road 11 is flowed by the main main hole II in second tunnel.
It 1 can be obtained by air balance principle to attached drawing 4 with reference to the accompanying drawings：
For A points：qa1=qa3, qa2=Q1+Q01；
That is the first reversible axial flow wind turbine 1 takes the gas flowed into garage's transverse passage-way 11 in the main hole I in the first tunnel away row
Go out.
For B points：qb1=qb2, qa2=Q2+Q01；
That is the second reversible axial flow wind turbine 2 will supplement the gas flowed by the main hole I in the first tunnel in people's row transverse passage-way 12.
For C points：qc2=qb2, qc2=Q3+Q02；
That is the 3rd reversible axial flow wind turbine 3 takes the gas flowed into people's row transverse passage-way 12 in the main hole II in the second tunnel away row
Go out.
For D points：qa3=qd1, qc2=Q4+Q02。
That is the 4th reversible axial flow wind turbine 4 will supplement the gas flowed by the main hole II in the second tunnel in garage's lateral road 12.
Have to entire double-hole tunnel (disengaging air quantity is equal)：
Q1+Q3+Q01+qb1+qd1=Q2+Q4+Q02+qa1+qc1
Wherein：Q01、Q02The main hole I in respectively the first tunnel, the piston air quantity in the main hole II in the second tunnel, remaining letter is each
Air quantity in passage.
Piston Action Wind in the above-mentioned short parallel pilot tunnel pressure discharge type ventilation model in double hole uniline tunnels is by vehicle movement in tunnel
The air-flow of generation, Piston Action Wind air force are determined according to actual measurement.
In the present embodiment, the first to the 6th reversible axial flow wind turbine (1,2,3,4,5,6) is using band winding type synchronous motor
It adjusts rotating speed or uses the axial fan with hydraulic servo type blade dynamic regulation device.Fan blade peace is adjusted during work
Fill angular adjustment volume of air supply.
The power of first to the 6th reversible axial flow wind turbine (1,2,3,4,5,6) should be according to《Highway tunnel ventilation illuminates
Design specification determines》, i.e. tunnel space uninterruptedly takes a breath frequency, not preferably less than per hour 5 times；For the volume of traffic is smaller or speciality
Tunnel can be used 3~4 times per hour, can suitably increase rate of ventilation under fire condition, while with the tunnel of longitudinal ventilation,
Wind speed of taking a breath in tunnel is not less than 2.5m/s.
The main hole I in first tunnel, the main hole II in the second tunnel and 12 intersection of garage's transverse passage-way 11 or people's row transverse passage-way (A, B, C,
Precipitron at D) can be set, purification is filtered to the air of intersection (A, B, C, D), can so be carried to a certain extent
Air quality in the high main hole in tunnel.
In view of the reversible axial flow power of fan has certain limitation, so the length in tunnel need to be controlled in allowed band
It is interior.
In the case where fire or emergency episode occurs, since the power lighting system of parallel pilot tunnel is independently of tunnel master
Hole, and the reliable fresh air being capable of providing, therefore parallel pilot tunnel can be used as a bicycle road multiple line, become personnel,
The emergency evacuation passage of vehicle and rescue passage.Furthermore it is possible to manually or automatically control garage's transverse passage-way 11, people's row horizontal logical
The air switch in road 12, with ensure the fugitive life of personnel or rescue when the security of the lives and property.
Claims (7)
- A kind of 1. method of the short parallel pilot tunnel pressure discharge type ventilation in double hole uniline tunnels, which is characterized in that this method is in double-hole tunnel Inlet and outlet on the outside of respectively open up the short parallel pilot tunnel being mutually parallel with the main hole in tunnel, the entrance of the short parallel pilot tunnel is located at tunnel master At three point one of hole inlet and outlet, reversible axial flow wind turbine is placed in short parallel pilot tunnel；Meanwhile the garage between double-hole tunnel Transverse passage-way and people's row transverse passage-way also place reversible axial flow wind turbine, are ensureing that two main tunnels, garage's transverse passage-way and people's row are horizontal logical On the premise of the sum of required airflow in road is no more than the sum of its maximum allowable ventilation quantity, by adjusting reversible axial flow blower ventilation Measure size and cause unstable airflow everywhere in tunnel, and by the main hole of double-hole tunnel exit parallel pilot tunnel exhaust outlet by tunnel Wind discharge in road；Reversible axial flow wind turbine in the short parallel pilot tunnel of the main hole entrance in tunnel plays scavenging action, and the main hole in tunnel goes out The reversible axial flow wind turbine in short parallel pilot tunnel at mouthful serves and calms the anger, in garage's transverse passage-way and people's row transverse passage-way can Inverse axial fan is then the air force for adjusting garage's transverse passage-way and people's row transverse passage-way；It is specific according to divulging information in the main hole in tunnel Situation, by the size direction of each section of wind speed in the main hole in tunnel, by adjusting the press-in of reversible axial flow wind turbine or draft capacity Size changes ventilation condition in the main hole in tunnel.
- 2. the method for the short parallel pilot tunnel pressure discharge type ventilation in double hole uniline tunnels as described in claim 1, which is characterized in that described Airflow direction in the main hole in tunnel is consistent with wagon flow direction, and there are Piston Action Wind, garage's transverse passage-way or people's row horizontal strokes in the main hole in tunnel There are air-flow exchange between passage and parallel pilot tunnel, air quantity is decreased or increased after garage's transverse passage-way or people's row transverse passage-way, stream Fast corresponding reduction or increase, just adjust reversible axial flow wind turbine at this time makes wind speed in the main hole in tunnel unlikely to supplement or reduce air quantity It is too big in changing so that the air quantity in entire double-hole tunnel keeps balance.
- 3. the method for the short parallel pilot tunnel pressure discharge type ventilation in double hole uniline tunnels as claimed in claim 2, which is characterized in that described Piston Action Wind is the air-flow generated by vehicle movement in tunnel, and Piston Action Wind air force is determined according to actual measurement.
- 4. the method for the short parallel pilot tunnel pressure discharge type ventilation in double hole uniline tunnels as described in claim 1, which is characterized in that described Reversible axial flow wind turbine uses band winding type synchronous motor or uses the axial-flow type with hydraulic servo type blade dynamic regulation device Wind turbine.
- 5. the method for the short parallel pilot tunnel pressure discharge type ventilation in double hole uniline tunnels as described in claim 1, which is characterized in that described The uninterrupted ventilation frequency of reversible axial flow wind turbine is not less than 5 times per hour；For the volume of traffic is smaller or super long tunnel, using every , increase rate of ventilation in case of fire hours for 3~4 times, while use the tunnel of longitudinal ventilation, wind speed of taking a breath in tunnel is not less than 2.5m/s, maximum wind velocity are not higher than 15m/s.
- 6. the method for the short parallel pilot tunnel pressure discharge type ventilation in double hole uniline tunnels as described in claim 1, which is characterized in that described The main hole in tunnel sets precipitron with garage's transverse passage-way or Ren Hang transverse passage-ways intersection.
- 7. the method for the short parallel pilot tunnel pressure discharge type ventilation in double hole uniline tunnels as described in claim 1, which is characterized in that described The main hole in tunnel is provided with precipitron with garage's transverse passage-way or Ren Hang transverse passage-ways intersection.
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| GB2574167B (en) * | 2017-02-23 | 2021-10-13 | Minetek Invest Pty Ltd | System for ducted ventilation |
| CN107288673B (en) * | 2017-07-11 | 2019-07-23 | 广东工业大学 | A kind of vcehicular tunnel energy-saving ventilating air control method based on wind speed |
| CN109209461B (en) * | 2018-10-09 | 2019-10-18 | 同济大学 | Single channel and perpendicular inclined shaft modular ventilation system in a kind of major long tunnel |
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