CN110424281A - A kind of tunnel face Piston Action Wind Dust Improvement device - Google Patents

A kind of tunnel face Piston Action Wind Dust Improvement device Download PDF

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Publication number
CN110424281A
CN110424281A CN201910659167.1A CN201910659167A CN110424281A CN 110424281 A CN110424281 A CN 110424281A CN 201910659167 A CN201910659167 A CN 201910659167A CN 110424281 A CN110424281 A CN 110424281A
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CN
China
Prior art keywords
dust
wind
tunnel face
supporting structure
main supporting
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Pending
Application number
CN201910659167.1A
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Chinese (zh)
Inventor
孟新利
赵耿彬
王高峰
李晓强
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Shanxi Is Wind Suppression Technology Co Ltd Windwall
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Shanxi Is Wind Suppression Technology Co Ltd Windwall
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Publication date
Application filed by Shanxi Is Wind Suppression Technology Co Ltd Windwall filed Critical Shanxi Is Wind Suppression Technology Co Ltd Windwall
Priority to CN201910659167.1A priority Critical patent/CN110424281A/en
Publication of CN110424281A publication Critical patent/CN110424281A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E01F7/02Snow fences or similar devices, e.g. devices affording protection against sand drifts or side-wind effects
    • E01F7/025Devices specially adapted for protecting against wind, e.g. screens, deflectors or attenuators at tunnel or lock entrances

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The present invention provides a kind of tunnel face Piston Action Wind Dust Improvement devices, are extended outwardly by tunnel face, are arranged in track two sides, are mainly made of concrete foundation, main supporting structure, suppression stratification of wind, dust-break layer.Whole equipment divides upper layer and lower layer, and dust-break layer, lower layer's installation suppression stratification of wind are installed in upper layer, and dust-break layer, the setting for pressing down stratification of wind are arranged from the near to the distant by close to thin subsection gradual in tunnel face.It is acted on using the control wind of suppression stratification of wind Windbreak barrier strip, the depositing dust of the ventilation unit of the anti-fugitive dust of dust-break layer acts on, a buffer area is established at tunnel face, so that Piston Action Wind is buffer area is broken, consumption declines low-flow pressure, it is set gradually to tend to be steady, it combines together with atmosphere, reduces gas and take dirt ability, prevent internal diffussion of dust to outside.When can effectively solve the bulk shippings train such as coal, ore and passing through tunnel, the problem that the Piston Action Wind of generation causes the dust pollution of loose unpacked material serious, and cost is low with running cost, can also save a large amount of costs of labor.

Description

A kind of tunnel face Piston Action Wind Dust Improvement device
Technical field
The invention belongs to environment protection fields.It is mainly used for freight rail tunnel face periphery dust pollution improvement, and in particular to one Kind tunnel face Piston Action Wind Dust Improvement equipment.
Background technique
As the train moves into the tunnel, air is compressed in front of train, and pressure sharply increases, and generates compressed air stream;Work as column When the tailstock of vehicle enters tunnel, air has little time to supplement in tunnel, and pressure drastically reduces, and forms expansion (suction) air-flow; Form Piston Action Wind.Compressed air stream, expanded gas flow, turbulent flow are iteratively operating on train in tunnel, blow the coal surface in compartment It rises, causes fugitive dust in tunnel, pressure strongly reduces when carrying the Piston Action Wind arrival tunnel exit of a large amount of dirt, and gas volume is quick Expansion, it is fan-shaped to be spread to periphery rapidly, and train tail goes out the swabbing effect generated when tunnel face, and the dust-laden in tunnel is empty Gas is largely taken out of, and large-scale dust pollution is caused.
The dust pollution problem generated in the loose cargo transports such as Railway Coal, ore has caused the height of environmental protection administration Concern, the especially bulk shippings train such as coal, ore is when passing through tunnel, by Leads to new breeze tunnel, the Piston Action Wind wind of generation Speed is larger and causes the fugitive dust of loose unpacked material serious with vortex, and train goes out the swabbing effect generated when tunnel face, will be in tunnel Dust laden air take tunnel out of, being diffused into surrounding enviroment, cause very serious dust pollution, therefore solve coal, ore etc. dissipates Surrounding enviroment dust pollution caused by when goods transport train passes through tunnel, has become current urgent problem to be solved.It is existing Freight rail tunnel face periphery is not processed this, cannot solve the above problems.
Summary of the invention
The present invention provides a kind of tunnel face Piston Action Wind dust pollution abatement equipments, it is therefore intended that can effectively solve coal When the bulk shippings train such as charcoal, ore passes through tunnel, the problem that the Piston Action Wind of generation causes the dust pollution of loose unpacked material serious, Cost is low with running cost, can also save a large amount of costs of labor.
The present invention is implemented with the following technical solutions:
A kind of tunnel face Piston Action Wind dust pollution controlling device, controlling device setting is in track two sides and from tunnel face to tunnel Outer extension, the controlling device are made of concrete foundation, main supporting structure, suppression stratification of wind, dust-break layer;Main supporting structure setting exists Suppression stratification of wind, dust-break layer are installed, dust-break layer is located at the inside of main supporting structure, presses down above concrete foundation, on main supporting structure Stratification of wind is located at the outside of main supporting structure.
Outer layer dust-break layer is installed to thin segmentation from bottom to top and along direction of traffic by close on the outside of main supporting structure, internal layer Press down stratification of wind on the inside of main supporting structure from bottom to top and along direction of traffic by it is close to dredge segmentation installation, realization air pressure, air-flow by Small gradient decaying is arrived greatly, is changed into Piston Action Wind in buffer area consistent with ambient wind.
Reinforced concrete foundation according to the span of main supporting structure, height, stress condition and design, material use C35 steel Reinforced concrete is integrally formed foundation bolt with basis, main supporting structure passes through column by embedding anchor bolts when casting concrete Sole is connect with foundation bolt.
Main supporting structure uses rod piece grid structure, and grid structure uses just putting quadrangular pyramid structure.Rod member for grid mutually it Intermediate node uses bolted spherical node, and rod member for grid uses ratio-frequency welded tube or seamless pipe, and bolt uses No. 45 steel.Space can also be used Tube truss structure, is spliced using profile class material, and space pipe truss structure node then generallys use the tubular joint directly welded As tie point.
The suppression stratification of wind includes Windbreak barrier strip, T-shaped piece, barrier end front plate, barrier end back splint, c-type rubber block.
T-shaped piece is set on lower edge bolted spherical node on the inside of the grid structure, is arranged at a certain distance along direction of traffic One column, T-shaped piece are connect with lower edge bolted spherical node on the inside of grid structure by fastener, and barrier end front plate passes through bolt and T The connection of type part, barrier end back splint are bolted with a barrier end front plate, and c-type rubber block and air partition item are clipped in barrier item Between end back splint and barrier end front plate, c-type rubber block will hinder an end front plate, barrier end rear plate jam-packed, And by Windbreak barrier strip and both ends T-shaped piece jam-packed.
T-shaped piece by longitudinal steel plate with it is lateral steel plate is T-shaped is welded, longitudinal steel plate is overlapped weldering with transverse direction steel plate middle line It connects, remains for the mounting hole of installation inside suppression stratification of wind on longitudinal steel plate in advance.
Windbreak barrier strip is C-shaped, and Windbreak barrier strip uses makrolon material.
Hindering an end front plate and a barrier end back splint is by forging and forming.
It is oval to hinder an end front plate, barrier end back splint is C-shaped, and a barrier end front plate is reserved with and T-type The bolt connecting hole of part connection, barrier end front plate and a barrier end back splint are equipped with mounting ear, the reserved installation of mounting ear Hole can be bolted.
The outer shape of c-type rubber block is C-shaped, and material uses ethylene propylene diene rubber, has slot, Windbreak barrier in the middle part of c-type rubber block Item is inserted into slot, has round rubber raised on the outside of c-type rubber block.
Outer layer dust-break layer includes the ventilation unit of anti-fugitive dust, T-type supporting plate, purlin, tapping screw.
The purlin includes main purlin, secondary purlin;Main purlin is transversely mounted on T-type supporting plate, the secondary longitudinally mounted master of purlin On purlin.Main purlin, secondary purlin form frame.
One column T-type supporting plate is set at a certain distance along direction of traffic in rack bolt sphere of winding up, T-type supporting plate passes through card Part and bolt are connect with bolt sphere in main supporting structure, and purlin is connect by bolt with T-type supporting plate, and the ventilation unit of anti-fugitive dust is logical It crosses tapping screw to be installed on time purlin, main supporting structure is winded up, and outer layer is whole to be closed.
T-type supporting plate is formed by longitudinal steel plate and lateral steel plate vertical welding, and longitudinal steel plate is overlapped weldering with lateral steel plate middle line It connects, lateral steel plate remains for installing in advance the mounting hole of main purlin, secondary purlin.
Purlin uses high-frequency welding galvanizing square steel, material Q235B;Purlin thickness >=2.5mm.Purlin galvanizing is zinc-plated Amount is no less than 350g/ ㎡.
The ventilation unit of anti-fugitive dust is using a kind of resistance dirt ventilator disclosed in China Patent No. ZL201820326434.4.
The working principle of the invention: establishing a buffer area at tunnel face, is acted on using the control wind of lower layer's suppression stratification of wind, control Train Piston Action Wind processed air pressure at tunnel exit cannot strongly reduce, and return to a part of Piston Action Wind, and taking dirt air cannot Enough diffusions rapidly will take the control of dirt air inside equipment, and the suppression wind for recycling lower layer's suppression stratification of wind Windbreak barrier strip mutual is made With by mutual collision, the rubbing action of air-flow, consuming its kinetic energy, reduce it and take dirt ability, recycle the anti-of upper layer dust-break layer The wind deflector inclined-plane of the ventilation unit of fugitive dust is to the collecting action of air-flow, so that the semiclosed sky that the ventilation unit of anti-fugitive dust surrounds Interior pressure becomes larger, to prevent internal diffussion of dust to outside.
The buffer area dust-break layer, press down stratification of wind setting be arranged from the near to the distant by close to thin gradual change in tunnel face so that Piston Action Wind makes it gradually tend to be steady, combines together with atmosphere, drop buffer area is broken, consumption declines low-flow pressure Low gas takes dirt ability, reaches depositing dust purpose.
When the present invention can effectively solve the bulk shippings train such as coal, ore and pass through tunnel, the Piston Action Wind of generation causes The serious problem of the dust pollution of loose unpacked material, and cost is low with running cost, can also save a large amount of costs of labor.
Detailed description of the invention
Fig. 1 is facade installation diagram of the present invention;
Fig. 2 is exterior facades schematic diagram of the present invention;
Fig. 3 is interior facade schematic diagram of the present invention;
Fig. 4 is local scheme of installation of the invention;
In figure, the basis 1-, 2- main supporting structure, 3- dust-break layer, 4- suppression stratification of wind, 21-T type supporting plate, the ventilation list of the anti-fugitive dust of 31- Member, the zinc-plated tapping screw of 32-, 33- purlin, 41-T type part, 42- hinder an end back splint, 43-C type rubber block, 44- Windbreak barrier Item, 45- hinder an end front plate, 46- connection bolt.
Specific embodiment
By taking double track tunnel as an example, the wide 12m in tunnel, high 8.6m.The main support of tunnel face Piston Action Wind dust pollution controlling device Structure rack span 16m, is highly 13m, extends 60m to outside tunnel from tunnel face.
Main supporting structure is mounted in concrete foundation, and main supporting structure is mounted in concrete foundation, main supporting structure Outside is installed by dust-break layer, inside installation suppression stratification of wind.
Dust-break layer is installed along direction of traffic from bottom to top on the outside of main supporting structure, presses down stratification of wind on the inside of main supporting structure From bottom to top along direction of traffic install, outer layer dust-break layer and internal layer suppression stratification of wind main supporting structure along direction of traffic use by It is close to be arranged to thin subsection gradual form.
6 sections are specifically divided into, every segment length is 10m.It is respectively in order using the front of train direction of travel as first segment Two sections, third section, the 4th section, the 5th section, the 6th section.
The ventilation unit of the anti-fugitive dust of first segment dust-break layer is abound with without spacing, is arranged in rack and is winded up outer layer;Press down in stratification of wind Adjacent Windbreak barrier strip center is apart 380mm installation, is evenly arranged on rack lower edge internal layer.
The ventilation unit of the anti-fugitive dust of second segment dust-break layer is abound with without spacing, is arranged in rack and is winded up outer layer;Press down in stratification of wind Adjacent Windbreak barrier strip center is installed at a distance of 430mm, is evenly arranged on rack lower edge internal layer.
The ventilation unit of the anti-fugitive dust of third section dust-break layer is abound with without spacing, is arranged in rack and is winded up outer layer;Press down in stratification of wind Adjacent Windbreak barrier strip center is installed at a distance of 480mm, is evenly arranged on rack lower edge internal layer.
The ventilation unit center of adjacent anti-fugitive dust is apart 2150mm installation in 4th section of dust-break layer, is evenly arranged on rack and winds up Outer layer presses down adjacent Windbreak barrier strip center in stratification of wind and installs at a distance of 580mm, is evenly arranged on rack lower edge internal layer.
The ventilation unit center of adjacent anti-fugitive dust is installed at a distance of 2250mm in 5th section of dust-break layer, is evenly arranged on rack and is winded up outside Layer;Press down adjacent Windbreak barrier strip center in stratification of wind to install at a distance of 680mm, is evenly arranged on rack lower edge internal layer.
The ventilation unit center of adjacent anti-fugitive dust is installed at a distance of 2300mm in 6th section of dust-break layer, is evenly arranged on rack and is winded up outside Layer;Press down adjacent Windbreak barrier strip center in stratification of wind to install at a distance of 780mm, is evenly arranged on rack lower edge internal layer.
Mounting seat of two rows of reinforced concrete foundations as whole equipment, each basis spacing are built in track two sides 8m, material use C35 armored concrete, and by foundation bolt M20 when casting concrete, length is that 1200mm is pre-buried, make lower margin spiral shell Bolt is integrally formed with basis, and top grid structure is connect by heel slab with foundation bolt, realizes top grid structure and basis Connection.
The just putting quadrangular pyramid arch grid structure structure that main supporting structure uses rod piece to constitute, outer profile is cylindrical surface, rack The mutual node of rod piece uses bolted spherical node, and rack thickness is disposed as 1.5m.
Rod member for grid material includes: ratio-frequency welded tube or seamless pipe, bolt sphere: No. 45 steel;High-strength bolt, pin: 20MnTiB steel or 40Cr steel;> M24 or more uses 40Cr steel;Conehead and sealing plate: Q235B steel is selected;Sleeve (nut): Q235B(≤M33), No. 45 Steel (> M33) steel forgings, grid structure anti-corrosion is using paint anti-corrosion.
Main supporting structure can also be the truss structure being made of rod piece, is also possible to fashioned iron and is bent the steel being made Frame.
Suppression stratification of wind includes Windbreak barrier strip, T-shaped piece, barrier end front plate, barrier end back splint, c-type rubber block.
One column T-shaped piece, spiral shell in T-shaped piece and main supporting structure are set every 4m along direction of traffic in rack lower edge bolt sphere Bolt ball is connect by fastener with bolt mode, and barrier end front plate passes through reserved bolt hole by bolt and connect with T-shaped piece, Barrier end back splint is bolted with a barrier end front plate, and c-type rubber block and air partition item are clipped in two clamping plates Between, Windbreak barrier strip installation is completed, c-type rubber block plays elastic filling, will hinder the forward and backward clamping plate jam-packed in an end, by Windbreak barrier strip With both ends T-shaped piece jam-packed.
T-shaped piece is welded by two blocks of steel plates, lateral plate size 400*170*12mm, longitudinal plate size 400*150* 12mm, the side longitudinal steel plate 400mm are overlapped welding with lateral steel plate 400mm middle line, reserve installation on longitudinal steel plate among T-shaped piece Hole is installed for Windbreak barrier strip.
Windbreak barrier strip uses 8mm thickness PC force-bearing plate, and raw material are makrolon material, and external form uses arc-shaped external form Design, molding such as c-type, length standard length is 2.5m, width 212mm, height 86mm.
Barrier end front plate and a barrier end back splint are matching components, and forging and forming, barrier end front plate is in ellipse Circle, barrier end back splint is C-shaped, and size cooperates, and forms the long 340mm of standard component, wide 65mm, pre- on oval web There are mounting holes, can be bolted with T-shaped piece, and barrier end front plate and a barrier end back splint have installation ear, in advance Diameter 12mm mounting hole is stayed, can be bolted, c-type rubber block and air partition item are clipped among two clamping plates.
C-type rubber block outer diameter 240mm, internal diameter 184mm, wide 60mm, there is 8mm slot at middle part, can inject 8mm Windbreak barrier strip It goes, there are radius 6mm rubber bumps on internal-and external diameter surface.
Dust-break layer includes the ventilation unit of anti-fugitive dust, T-type supporting plate, purlin, zinc-plated tapping screw.
Rack wind up bolt sphere along direction of traffic every 4m be arranged a column T-type supporting plate, T-type supporting plate pass through fastener and spiral shell Bolt is connect with bolt sphere in main supporting structure, and purlin is bolted to be connect with T-type supporting plate, at a distance of 4m between each main purlin, is prevented The ventilation unit of fugitive dust is installed on time purlin by zinc-plated tapping screw.
A kind of resistance dirt ventilator of equipment, patent No. ZL201820326434.4 can be used in the ventilation unit of anti-fugitive dust.Ontology Long 5m wide 2m.
T-type supporting plate is welded by two blocks of steel plates, material Q235B, lateral plate size 400*170*12mm, Zong Xianggang Board size 400*150*12mm, the side longitudinal steel plate 400mm are overlapped welding with lateral steel plate 400mm middle line, on T-shaped piece transverse direction steel plate Reserving installation hole, the installation for main purlin, secondary purlin.
Purlin uses high-frequency welding galvanizing square steel, material Q235B;Purlin thickness >=2.5mm.Purlin galvanizing is zinc-plated Amount is no less than 350g/ ㎡.All purlin prefabrications, scene are connected using galvanized bolt, and use pre-punched hole, do not allow to weld It connects.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas Corresponding change and deformation, and all these changes and deformation all should belong to the protection scope of the claims in the present invention Within.

Claims (7)

1. a kind of tunnel face Piston Action Wind Dust Improvement device is mounted on track two sides and is extended from tunnel face to outside tunnel, special Sign is that the controlling device is made of concrete foundation, main supporting structure, suppression stratification of wind, dust-break layer;Main supporting structure is mounted on mixed Above solidifying earth foundation, dust-break layer and suppression stratification of wind are installed on main supporting structure, dust-break layer is located at the outside of main supporting structure, presses down wind Layer is located at the inside of main supporting structure.
2. a kind of tunnel face Piston Action Wind Dust Improvement device according to claim 1, it is characterized in that outer layer dust-break layer is in main branch On the outside of support structure from bottom to top and along direction of traffic by close to dredging segmentation installation, internal layer presses down stratification of wind on the inside of main supporting structure certainly It above and along direction of traffic by close is installed to thin segmentation down.
3. a kind of tunnel face Piston Action Wind Dust Improvement device according to claim 1 or claim 2, it is characterized in that main supporting structure uses Square pyramid space grid member structure or space pipe truss structure.
4. a kind of tunnel face Piston Action Wind Dust Improvement device according to claim 3, it is characterized in that rod member for grid is mutual Node uses bolted spherical node;Space pipe truss structure connecting node is using welding.
5. a kind of tunnel face Piston Action Wind Dust Improvement device according to claim 1, it is characterized in that in main supporting structure in arch Shape rack network arranges purlin between arch grid structure.
6. a kind of tunnel face Piston Action Wind Dust Improvement device according to claim 1, it is characterized in that suppression stratification of wind includes Windbreak barrier Item, T-shaped piece, barrier end front plate, barrier end back splint, c-type rubber block;In rack lower edge bolt sphere along direction of traffic It is equidistantly positioned a column T-shaped piece, T-shaped piece passes through fastener and be bolted with bolt sphere in main supporting structure, hinders an end fore-clamp Plate passes through reserved bolt hole by bolt and connect with T-shaped piece, and barrier end back splint and a barrier end front plate pass through bolt Connection, and c-type rubber block and air partition item are clipped between barrier end back splint and barrier end front plate, c-type rubber block will Hinder an end front plate, rear plate jam-packed, and by Windbreak barrier strip and both ends T-shaped piece jam-packed.
7. a kind of tunnel face Piston Action Wind Dust Improvement device according to claim 1, it is characterized in that dust-break layer includes anti-fugitive dust Ventilation unit, T-type supporting plate, purlin, zinc-plated tapping screw;Along direction of traffic one is equidistantly positioned in rack bolt sphere of winding up Column T-type supporting plate, T-type supporting plate are connect by fastener and bolt with bolt sphere in main supporting structure, and purlin is bolted and T-type Supporting plate connection, the ventilation unit of anti-fugitive dust is installed on purlin by zinc-plated tapping screw, and the main supporting structure outer layer that winds up is complete Portion's closing.
CN201910659167.1A 2019-07-22 2019-07-22 A kind of tunnel face Piston Action Wind Dust Improvement device Pending CN110424281A (en)

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CN201910659167.1A CN110424281A (en) 2019-07-22 2019-07-22 A kind of tunnel face Piston Action Wind Dust Improvement device

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Application Number Priority Date Filing Date Title
CN201910659167.1A CN110424281A (en) 2019-07-22 2019-07-22 A kind of tunnel face Piston Action Wind Dust Improvement device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112879491A (en) * 2021-01-12 2021-06-01 重庆文理学院 Air vibration damper for high-speed rail tunnel

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200978389Y (en) * 2006-12-11 2007-11-21 柳州欧维姆机械股份有限公司 Wind screening brattice
CN101487357A (en) * 2008-12-25 2009-07-22 青岛科技大学 Wind-proof dust-suppression method for open bulk materials stacking field, and its wind-proof dust-suppression net and use
CN202170453U (en) * 2011-07-07 2012-03-21 中铁第一勘察设计院集团有限公司 Wind and snow-resistant corridor for railway
CN106351135A (en) * 2016-09-22 2017-01-25 同济大学 Curlable wind barrier structure
CN208633393U (en) * 2018-03-09 2019-03-22 山西尚风科技股份有限公司 A kind of anti-flour dust overflow skylight of totally-enclosed coal bunker
CN211006404U (en) * 2019-07-22 2020-07-14 山西尚风抑风墙科技有限公司 Device is administered to tunnel face piston wind raise dust

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200978389Y (en) * 2006-12-11 2007-11-21 柳州欧维姆机械股份有限公司 Wind screening brattice
CN101487357A (en) * 2008-12-25 2009-07-22 青岛科技大学 Wind-proof dust-suppression method for open bulk materials stacking field, and its wind-proof dust-suppression net and use
CN202170453U (en) * 2011-07-07 2012-03-21 中铁第一勘察设计院集团有限公司 Wind and snow-resistant corridor for railway
CN106351135A (en) * 2016-09-22 2017-01-25 同济大学 Curlable wind barrier structure
CN208633393U (en) * 2018-03-09 2019-03-22 山西尚风科技股份有限公司 A kind of anti-flour dust overflow skylight of totally-enclosed coal bunker
CN211006404U (en) * 2019-07-22 2020-07-14 山西尚风抑风墙科技有限公司 Device is administered to tunnel face piston wind raise dust

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112879491A (en) * 2021-01-12 2021-06-01 重庆文理学院 Air vibration damper for high-speed rail tunnel

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