CN112664223A - Ventilation structure, construction method thereof and tunnel - Google Patents
Ventilation structure, construction method thereof and tunnel Download PDFInfo
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- CN112664223A CN112664223A CN202011555490.3A CN202011555490A CN112664223A CN 112664223 A CN112664223 A CN 112664223A CN 202011555490 A CN202011555490 A CN 202011555490A CN 112664223 A CN112664223 A CN 112664223A
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- 238000009423 ventilation Methods 0.000 title claims abstract description 78
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 238000005192 partition Methods 0.000 claims abstract description 58
- 230000000712 assembly Effects 0.000 claims abstract description 12
- 238000000429 assembly Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 238000009434 installation Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a ventilation structure, a construction method thereof and a tunnel, wherein the ventilation structure is applied to the tunnel and comprises the following components: the two ends of the partition plate are respectively connected with the corresponding supporting assemblies; the pre-buried assembly is pre-buried in the lining of the tunnel; the embedded assemblies are connected with the corresponding supporting assemblies, so that the partition board and the vault lining wall of the tunnel surround to form a ventilation channel. The technical scheme of the invention aims to solve the technical problem of poor ventilation effect of the tunnel in the prior art.
Description
Technical Field
The invention relates to the technical field of tunnel engineering, in particular to a ventilation structure, a construction method thereof and a tunnel.
Background
The air pipe is a main air conveying device of the existing tunnel, is often suspended and fixed at the top or the side wall of the tunnel, and particularly can not meet the ventilation effect of the tunnel due to large on-way air resistance when the diameter of the air pipe is smaller in a narrow small-section tunnel; the air pipe is large and is often damaged by machinery, so that the ventilation effect is poor or the tunnel construction is influenced; in addition, due to the influence of the quality of the air pipes, the air resistance friction coefficient of the branch pipes is large, the air leakage rate is high, and the ventilation effect of tunnel construction is further reduced.
Disclosure of Invention
The invention mainly aims to provide a ventilation structure, a construction method thereof and a tunnel, and aims to solve the technical problem that the ventilation effect of the tunnel in the prior art is poor.
In order to achieve the above object, the present invention provides a ventilation structure applied to a tunnel; the ventilation structure includes:
a partition board is arranged on the bottom of the shell,
the two ends of the partition plate are respectively connected with the corresponding support assemblies;
the embedded components are embedded in two linings of the tunnel; the embedded assemblies are connected with the corresponding supporting assemblies, so that the partition board and the vault lining wall of the tunnel surround to form a ventilation channel.
Optionally, the embedded assembly comprises an embedded steel plate, a rear anchor steel bar and an embedded connecting bolt;
the rear anchor steel bars are connected with the embedded steel plates, and the embedded connecting bolts are connected with the embedded steel plates and extend out of the lining.
Optionally, the rear anchor steel bar is prefabricated into a straight line section and a hook section, the embedded length of the straight line section is not less than 15cm, and the length of the hook section is not less than 10 cm.
Optionally, the support assembly comprises a support connection plate, a support cantilever beam and a support connection beam;
the support connecting plate is welded with the support cantilever beam, and the support connecting beam is connected with the support cantilever beam through welding or threads.
Optionally, the support connecting plate is connected with the embedded connecting bolt, so that the support assembly is connected with the embedded assembly; the bracket connection beam extends in the axial direction of the tunnel so that the bracket connection beam and the partition are abuttable against each other in the axial direction of the tunnel in a state where the bracket cantilever beam is connected to the partition.
Optionally, flexible mats are laid in gaps formed between the bracket cantilever beams and the bracket connecting beams and the partition plates respectively.
Optionally, the partition plate divides the tunnel into the ventilation channel and a construction channel; the ventilation structure further comprises a sealing device, and the sealing device is arranged on the ventilation channel so as to enable the ventilation channel and the construction channel not to be communicated.
Optionally, the separator comprises two layers of stainless steel plates and a corrugated plate disposed between the two layers of stainless steel plates.
Optionally, in a second aspect, the present invention also provides a construction method of a ventilation structure, which is used for a tunnel, and the construction method includes:
pre-burying a pre-buried assembly in a lining of the tunnel;
connecting the embedded components with corresponding supporting components; wherein the support assembly is connected with the partition plate, so that the partition plate and the vault lining wall of the tunnel surround to form a ventilation channel.
Optionally, in a third aspect, the invention also provides a tunnel comprising a ventilation structure as described above.
According to the technical scheme, a pre-embedded assembly in a tunnel lining is connected with a supporting assembly, and then a partition plate and an arch lining wall form a ventilation channel; the partition board is connected with the self structure (vault lining wall) of the tunnel to form a separated ventilation channel, so that fresh air is supplied and dirty air is effectively isolated, the ventilation section is greatly enlarged, the wind resistance is reduced, the maintenance frequency of the traditional branch pipe wind delivery is reduced, and the ventilation capability is obviously improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a cross-sectional view of a tunnel of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a longitudinal cross-sectional view of a tunnel of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
fig. 5 is a schematic view of the connection of adjacent partitions of the ventilation structure of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The purpose of tunnel ventilation lies in: fresh air is supplied to the interior of a project; secondly, harmful substances such as harmful gas, steam, dust, blast smoke and the like are removed; and thirdly, the temperature, the relative humidity and the flow rate of the air in the engineering reach the specified standards. Therefore, the ventilation effect of the tunnel is very important for building tunnel engineering and existing tunnel engineering.
However, the existing tunnel mainly adopts an air duct for air supply; the air pipe is often suspended and fixed at the top or the side wall of the tunnel, particularly in a narrow small-section tunnel, and the ventilation effect of the tunnel cannot be met due to large on-way wind resistance when the diameter of the air pipe is smaller; the air pipe is large and is often damaged by machinery, so that the ventilation effect is poor or the tunnel construction is influenced; in addition, due to the influence of the quality of the air pipes, the air resistance friction coefficient of the branch pipes is large, the air leakage rate is high, and the ventilation effect of tunnel construction is further reduced.
To this end, the present invention provides a ventilation structure applied to a tunnel 400, the ventilation structure including:
the number of the partition plates 100 is such that,
a plurality of support members 200, both ends of the partition plate 100 being connected to the plurality of support members 200, respectively;
the embedded components 300 are embedded in the two linings 400a of the tunnel 500; the embedded assemblies 300 are connected with the corresponding support assemblies 200, so that the partition boards 100 and the arch lining wall 400d of the tunnel 400 surround to form a ventilation channel 400 c.
According to the technical scheme, the embedded components 300 in the tunnel lining 400a are connected with the supporting components 400, and then the partition boards 100 and the arch lining wall 400d form a ventilation channel; the partition board 100 is connected with the self structure (vault lining wall 400d) of the tunnel 400 to form a separated ventilation channel 400c, so that fresh air is supplied and dirty air is effectively isolated, the ventilation section is greatly enlarged, the wind resistance is reduced, the maintenance frequency of the traditional branch pipe wind delivery is reduced, and the ventilation capacity is obviously improved.
It should be noted that the pre-embedding assembly 300 of the supporting assembly 200 is pre-embedded at the same lining height position in the tunnel axis direction, and the position of the supporting assembly 200 is consistent with the designed elevation from the tunnel bottom plate or the inverted arch filling top surface, so that the installation smoothness of the partition board 100 is ensured, and the influence of the turning radius and the like on the ventilation resistance is reduced; if necessary, the inclination adjustment in the installation longitudinal direction of the partition 100 may be performed in a manner of "one straight line is determined at two points".
Optionally, the embedded assembly 300 includes an embedded steel plate 300a, a rear anchor bar 300b, and an embedded connecting bolt 300 c; the rear anchor steel bars are connected with the embedded steel plates, and the embedded connecting bolts are connected with the embedded steel plates and extend out of the lining 400 a. In the specific implementation process, the size of the pre-buried steel plate 300a is generally 20 × 20cm to 25 × 25cm, and the thickness is 5-15 mm; 2-4 rear anchor steel bars 300b are adopted
The twisted steel is cold-bent into a 'pi' type steel, namely: the rear anchor steel bar 300b is prefabricated into a straight line section and a hook section; in order to strengthen the bond stress with the concrete, the embedded length is generally not shorter than 15cm, the hook length is not shorter than 10cm, namely: the embedded length of the straight line section is not less than 15cm, and the length of the hook section is not less than 10 cm. The rear anchor steel bar 300b is welded with the embedded steel plate 300 a. The embedded steel plate 300a is provided with 4 embedded connecting bolt holes, the diameter of the corresponding embedded connecting bolt 300c is not less than 12mm, the length is determined according to the actual situation, but when the embedded assembly 300 is installed, the direction of the bolts is ensured to be consistent; the embedded connection bolt 300c is connected in the bolt hole and extends out of the lining 400a, so that it can be fastened with the support assembly 200.
Further, it is preferred that the longitudinal spacing of the anchoring means is dependent on the width of the partition 100, and is generally uniform, preferably with an axial spacing of 1m to 3 m/position. Embedded parts of the tunnel section with a straight flat curve are uniformly distributed; the distance between the curve section and the support pre-embedded connecting device at the position of the adjacent lap joint of the curve section is set according to the unequal distance of the inner side and the outer side of the curve radius, and the calculation is carried out in advance according to the deflection.
Optionally, the support assembly 200 includes a bracket connection plate 200a, a bracket cantilever beam 200b, and a bracket connection beam 200 c; the bracket connecting plate 200a is welded to the bracket cantilever beam 200b, and the bracket connecting beam 200c is welded or screwed to the bracket cantilever beam 200 b. In a specific implementation process, the support assembly 200 includes a support connection plate 200a, a support cantilever beam 200b and a support connection beam 200 c; the bracket connection plate 200a and the bracket cantilever beam 200b are mainly connected by welding, and the bracket connection beam 200c and the bracket cantilever beam 200b may be connected by welding or bolts.
Optionally, the bracket connecting plate 200a is connected to the embedded connecting bolt 300c, so that the supporting assembly 200 is connected to the embedded assembly 300; the bracket connection beam 200c extends in the axial direction of the tunnel such that the bracket connection beam 200c is abuttable against the bulkhead 100 in the axial direction of the tunnel in a state where the bracket cantilever beam 200b is connected to the bulkhead 100. Referring to fig. 3 to 4, fig. 3 is also a view in the direction B of fig. 1; the structural size of the bracket connecting plate 200a is generally consistent with that of the embedded steel plate 300b of the embedded assembly 300; for the support cantilever beam 200b to facilitate the bolt connection, generally, H-shaped steel (or H-shaped steel) with a wider flange plate is selected, and a strip-shaped bolt hole is arranged at the position of the upper flange plate to facilitate the position adjustment and installation of the partition plate 100; the bracket connecting beam 200c is mainly composed of i-steel, and extends in the axial direction of the tunnel to be capable of abutting against the partition board 100, so as to play a role of supporting the partition board 100 and improve the pressure bearing capacity of the partition board 100. Further, the supporting assembly 200 is connected with the embedded assemblies 300 through embedded bolts 300c, and at least 2 nuts (preferably 2 nuts) are installed on each embedded connecting bolt 300c, so that the anti-loosening effect is realized. Furthermore, the partition board 100 is connected with the support cantilever beam 200b by using an elongated loose bolt, the diameter of the screw is not less than 12mm, a gasket is arranged at the position of the nut, and double nuts are arranged at the end part of the screw.
Referring to fig. 5, preferably, the partition board 100 is provided with a conical convex portion at the middle of the long side and a concave portion at the other long side to facilitate the assembly of the partition boards 100; semicircular cavities with the diameter of 2-3cm are arranged on the upper and lower sides of the convex or concave part of the long edge of the clapboard 100; in order to ensure the installation tightness, spherical convex rubber strips 100c are arranged in the semicircular cavity and between the clapboards.
Optionally, a flexible pad 600 is laid in a gap formed between the bracket cantilever beam 200b and the bracket connection beam 200c and the partition board 100, respectively. In a specific implementation process, the flexible pad 600 is laid on one side of the bracket cantilever beam 200b and the bracket connecting beam 200c facing the partition board 100, so that the partition board 100 and the support assembly 200 are in flexible connection, and the function of adjusting the smoothness of the partition board 100 can be achieved. Generally, the flexible pad 600 is a flexible supporting pad material such as a rubber plate or geotextile; typically, the thickness of the flexible mat 600 is not less than 5 mm.
Optionally, the partition 100 divides the tunnel into the ventilation channel 400c and the construction channel 400 b; the ventilation structure further includes a sealing device 500, and the sealing device 500 is disposed in the ventilation channel 400c to seal the ventilation channelThe ventilation passage 400c and the construction passage 400b are not communicated. In a specific implementation process, the sealing device 500 comprises a sealing plate 500a, pressing strips (a first pressing strip and a second pressing strip), rubber plates (a first rubber plate and a second rubber plate), anchor bars 500b and rivets 500d, wherein the sealing plate 500a is a steel plate (preferably stainless steel) with the thickness of 1-2 mm; the press strips (the first press strip and the second press strip) are 4-5mm flat steel, and the anchor bars are
The chemical bolt of (1); one end of the sealing plate 500a is connected with the partition plate 100 through a rivet 500, and the sealing plate 500a, the first rubber plate and the partition plate 100 are sequentially arranged from top to bottom; the other end of the sealing plate 500a is connected with the arch lining wall 400d through an anchor bar 500b, and a second pressing bar, the sealing plate 500, a second rubber plate 500c and the arch lining wall 400d are installed from outside to inside in sequence; in general, the reinforcement interval between the anchor bars 500b and the rivets 500d is 50 cm/position. In this way, the ventilation passage 400c and the construction passage 400b are not communicated, and the harmful gas is effectively prevented from being mixed into the ventilation passage.
Alternatively, the separator 100 includes two stainless steel plates 100a and a corrugated plate 100b disposed between the two stainless steel plates. In a specific implementation process, the partition board 100 may have a planar structure or a cambered surface structure with a certain camber. The clapboard 100 is formed by processing corrugated plates 100b and stainless steel plates 100a, and the middle part of the clapboard 100a is the corrugated plate 100b which is a main bearing structure; the wall thickness of the corrugated plate 100b is generally 2-6mm, and the wave amplitude is generally 5-15 cm; in order to reduce the wind resistance friction coefficient, a stainless steel plate 100a is arranged on the outer surface of the corrugated plate 100b to form a smooth surface, and the thickness is generally 1-3 mm; the thickness of either the corrugated plate 100b or the stainless plate 100a depends on the amplitude, the frequency of vibration, and whether the partition is provided with a walkway or a fan installation.
Alternatively, in order to secure durability of the pre-buried assembly 300, the supporting assembly 200, the partition board 100, the concrete (lining), and the like, materials thereof should be subjected to a zinc impregnation or zinc plating process.
One preferred implementation of the present invention is: pre-buried subassembly in tunnel lining to be connected pre-buried subassembly and supporting component, then the partitioning installation baffle, and be connected with supporting component, make baffle and arch portion lining wall form ventilation passageway, utilize sealing device to realize the seal of baffle at last, and then guarantee the ventilation effect.
Based on the technical scheme, the technical problems solved by the invention are as follows: firstly, the separation type air inlet channel and the separation type air exhaust channel are formed by structurally connecting the partition boards with the tunnel, so that the isolation of fresh air and dirty air is realized, the ventilation section is greatly enlarged, the wind resistance is reduced, and the maintenance frequency of the traditional branch pipe air transportation is reduced; secondly, the unit type partition plate is utilized, the factory production of the partition plate is realized, the transportation and assembly speed is increased, and the maintenance and the replacement are convenient; and thirdly, the metal smooth partition plate is utilized, so that the weight of the partition plate is reduced, the cyclic utilization rate is improved, the construction cost is reduced, and the grabbing and waste of natural resources are reduced.
Based on the technical scheme, compared with the prior art, the invention has the beneficial effects that:
1) according to the technical scheme, the assembled and circulating ventilation partition plate structure is arranged, so that the arch space of the tunnel is utilized to the greatest extent, the ventilation section is greatly improved, and the ventilation effect of the long-distance tunnel is realized;
2) the invention reduces the installation difficulty, accelerates the installation speed, avoids the influence of a cast-in-place partition plate on the construction progress, and reduces the workload of ventilation and maintenance of the traditional air pipe;
3) the invention realizes the circular installation, can be quickly disassembled after the ventilation of the tunnel construction is finished, and utilizes the ventilation of the next tunnel construction, thereby improving the use efficiency.
The invention also provides a construction method of the ventilation structure, which is used for the tunnel; the construction method comprises the following steps:
pre-burying a pre-buried assembly 300 in a lining 400a of the tunnel 500 of the tunnel;
connecting the embedded component 300 with the corresponding supporting component 200; wherein the support assembly 200 is coupled to the partition 100 such that the partition 100 and the dome lining wall 400d of the tunnel 400 surround to form a ventilation passage 400 c.
The construction method can be used for constructing the ventilation structure as described above.
The invention further provides a tunnel, which comprises a ventilation structure, the specific structure of the ventilation structure refers to the above embodiments, and as the tunnel adopts all technical solutions of all the above embodiments, the tunnel at least has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A ventilation structure for use in a tunnel, the ventilation structure comprising:
a partition board is arranged on the bottom of the shell,
the two ends of the partition plate are respectively connected with the corresponding support assemblies;
the embedded components are embedded in two linings of the tunnel; the embedded assemblies are connected with the corresponding supporting assemblies, so that the partition board and the vault lining wall of the tunnel surround to form a ventilation channel.
2. The ventilation structure of claim 1, wherein the pre-buried assembly comprises a pre-buried steel plate, a rear anchor bar and a pre-buried connecting bolt;
the rear anchor steel bars are connected with the embedded steel plates, and the embedded connecting bolts are connected with the embedded steel plates and extend out of the lining.
3. The ventilation structure as claimed in claim 2, wherein the rear anchor reinforcing bars are prefabricated into a straight line section and a hook section, the embedded length of the straight line section is not less than 15cm, and the length of the hook section is not less than 10 cm.
4. The ventilation structure as claimed in claim 2, wherein the support assembly includes a bracket connection plate, a bracket cantilever beam, and a bracket connection beam;
the support connecting plate is welded with the support cantilever beam, and the support connecting beam is connected with the support cantilever beam through welding or threads.
5. The ventilation structure according to claim 4, wherein the bracket connecting plate is connected with the embedded connecting bolt, so that the supporting component is connected with the embedded component;
the bracket connection beam extends in the axial direction of the tunnel so that the bracket connection beam and the partition are abuttable against each other in the axial direction of the tunnel in a state where the bracket cantilever beam is connected to the partition.
6. The ventilation structure as claimed in claim 5, wherein flexible mats are laid in gaps formed by the bracket cantilever beams and the bracket coupling beams with the partition plates, respectively.
7. The ventilation structure as claimed in any one of claims 1 to 6, wherein the partition plate divides the tunnel into the ventilation passage and a construction passage;
the ventilation structure further comprises a sealing device, and the sealing device is arranged on the ventilation channel so as to enable the ventilation channel and the construction channel not to be communicated.
8. The ventilation structure according to any one of claims 1 to 6, wherein the partition comprises two layers of stainless steel plates and a corrugated plate disposed between the two layers of stainless steel plates.
9. A construction method of a ventilation structure is used for a tunnel and is characterized in that,
pre-burying a pre-buried assembly in a lining of the tunnel;
connecting the embedded components with corresponding supporting components; wherein the support assembly is connected with the partition plate, so that the partition plate and the vault lining wall of the tunnel surround to form a ventilation channel.
10. A tunnel comprising a ventilation structure according to any one of claims 1 to 8.
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| CN202011555490.3A CN112664223A (en) | 2020-12-24 | 2020-12-24 | Ventilation structure, construction method thereof and tunnel |
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| CN202011555490.3A CN112664223A (en) | 2020-12-24 | 2020-12-24 | Ventilation structure, construction method thereof and tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687781A (en) * | 2022-04-06 | 2022-07-01 | 西南交通大学 | Prefabricated partition plate type ventilation device for tunnel construction ventilation and construction method thereof |
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| CN211777484U (en) * | 2020-03-23 | 2020-10-27 | 中铁五局集团建筑工程有限责任公司 | Prefabricated rail top air duct structure |
| CN111502729A (en) * | 2020-04-05 | 2020-08-07 | 中铁二院工程集团有限责任公司 | Assembled special-shaped air duct for long-distance tunnel construction ventilation and construction method |
| CN111779528A (en) * | 2020-06-29 | 2020-10-16 | 中铁第一勘察设计院集团有限公司 | Rapid Assembly formula tunnel ventilation baffle structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687781A (en) * | 2022-04-06 | 2022-07-01 | 西南交通大学 | Prefabricated partition plate type ventilation device for tunnel construction ventilation and construction method thereof |
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