CN110735649B - Full automatically regulated's tunnel buffer structure - Google Patents
Full automatically regulated's tunnel buffer structure Download PDFInfo
- Publication number
- CN110735649B CN110735649B CN201911172463.5A CN201911172463A CN110735649B CN 110735649 B CN110735649 B CN 110735649B CN 201911172463 A CN201911172463 A CN 201911172463A CN 110735649 B CN110735649 B CN 110735649B
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- movable
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- buffer ring
- movable buffer
- tunnel
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- 239000000872 buffer Substances 0.000 title claims abstract description 129
- 230000001105 regulatory effect Effects 0.000 title description 2
- 230000000087 stabilizing effect Effects 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 17
- 239000006173 Good's buffer Substances 0.000 abstract 1
- 239000003381 stabilizer Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a fully-automatic adjusting tunnel buffer structure, which comprises: the two guide seats are oppositely arranged left and right, each guide seat comprises a plurality of transverse bases, the plurality of transverse bases are uniformly distributed from front to back, and the length of each transverse base is distributed along the left and right direction; the two longitudinal bases are arranged in parallel left and right, and are respectively arranged on one guide seat in a manner of being capable of moving left and right; the movable buffer rings are arranged between the two longitudinal bases in a mode of being capable of moving back and forth; each movable buffer ring is distributed in a U-shaped mode with an opening facing downwards, the top of each movable buffer ring can stretch left and right, and the height of each movable buffer ring can be adjusted. The tunnel buffer structure can realize full-automatic adjustment of the cross-sectional area, the distance and the height of the movable buffer ring, and has strong practicability and good buffer effect.
Description
Technical Field
The invention relates to the technical field of tunnel engineering, in particular to a fully-automatic-adjustment tunnel buffer structure.
Background
With the development of traffic industry in China, more tunnels are built, and in the process of entering and exiting tunnels, vehicles running at high speed can bring a series of aerodynamic effects due to the change of travelling sections, piston wind and air resistance, and the three types of aerodynamic effects are mainly: micropressure wave problems, power problems and noise problems. The problem of micro-pressure waves is mainly that in the process that a vehicle running at a high speed enters a tunnel, air which originally occupies space is discharged, but the discharged air cannot be timely and smoothly discharged due to the obstruction of the narrow tunnel, the viscosity of the air and the resistance of a tunnel wall and a train, so that the air in front of the vehicle is compressed, and after the vehicle enters the tunnel, the rear of the vehicle forms negative pressure, so that micro-pressure waves are formed; the power problem mainly refers to that the vehicle swings left and right and the like when the vehicle enters a tunnel at a high speed due to air pressure change and air flow change; noise problems are mainly the problem of various dissonance noise caused by the interaction of the vehicle with the surrounding air flow. These aerodynamic effects can present a number of hazards, such as: the comfort of personnel on the vehicle is affected, the environment is polluted by micro-pressure wave noise, the tunnel structure is damaged by the micro-pressure wave, and the internal facility equipment, the micro-pressure wave and the power problem of the tunnel structure damage the vehicle body structure. It is therefore necessary to provide a tunnel buffer structure at the tunnel portal site to solve the above problems.
The aerodynamic effect of the tunnel is related to factors such as tunnel portal form, train and tunnel cross-section area, vehicle model, tunnel structure and in-tunnel facility equipment, speed, etc., but the existing tunnel buffer structure is generally a reinforced concrete structure, once construction is completed, the shaping is unchanged, and the effect of relieving the aerodynamic effect of the tunnel cannot be achieved best because the shaping cannot be adjusted according to factors such as vehicle model, speed, etc.; in addition, the main material of the existing tunnel buffer structure is a reinforced concrete structure, so that the tunnel buffer structure is difficult to recycle; the tunnel buffer structure generally needs to be cast in situ, the construction process is complex, the construction time is long, and the tunnel buffer structure is not like a steel structure, a large number of prefabricated parts can be assembled quickly.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a fully-automatically-adjusted tunnel buffer structure, so that the defects that the construction time of the tunnel buffer structure of the existing reinforced concrete structure is long, the tunnel buffer structure cannot be recycled and the cross-sectional area of the tunnel buffer structure cannot be adjusted are overcome.
In order to achieve the above object, the present invention provides a fully automatically adjustable tunnel buffer structure, comprising: the two guide seats are oppositely arranged left and right, each guide seat comprises a plurality of transverse bases, the plurality of transverse bases are uniformly distributed from front to back, and the length of each transverse base is distributed along the left and right direction; the two longitudinal bases are arranged in parallel left and right, and are respectively arranged on one guide seat in a manner of being capable of moving left and right, and each longitudinal base is driven by a first driving device to move left and right; each movable buffer ring is arranged between the two longitudinal bases in a mode of being capable of moving back and forth, and each movable buffer ring is driven by the second driving device to move back and forth; every this activity buffer ring is opening U word form distribution down, and the top of every this activity buffer ring can control flexible, every the height-adjustable of activity buffer ring, and every this activity buffer ring is adjusted through height adjusting device.
Preferably, in the above technical solution, the device further includes a plurality of movable stabilizing plates, the plurality of movable stabilizing plates are mounted on all the movable buffer rings at intervals, the length of each movable stabilizing plate is distributed along the front-back direction, and each movable buffer ring is connected with each movable stabilizing plate in a manner of being capable of moving back and forth.
Preferably, in the above technical solution, the number of the movable stabilizing plates is at least three, and the three movable stabilizing plates are respectively mounted on the left side, the right side and the top of all the movable buffer rings.
Preferably, in the above technical solution, at least one first guide rail is disposed on each movable stabilizing plate, each first guide rail is distributed along the front-rear direction, and the movable buffer ring is disposed at a position corresponding to each movable stabilizing plate and is provided with a first guide rail wheel matched with the first guide rail.
Preferably, in the above technical solution, each movable buffer ring includes two ring bodies and a connecting piece, each ring body is distributed in an arc shape, and two opening directions of the ring bodies are distributed oppositely left and right, an upper end of the left ring body is connected with a left end of the connecting piece in a manner capable of sliding left and right, and an upper end of the right ring body is connected with a right end of the connecting piece in a manner capable of sliding left and right.
Preferably, in the above technical solution, at least one second guide rail is disposed on each lateral base, each second guide rail is distributed along a left-right direction, a second guide rail wheel matched with each second guide rail is disposed at a position corresponding to each lateral base at the bottom of the longitudinal base, and all the second guide rail wheels are driven to rotate by the first driving device.
Preferably, in the above technical solution, a first rack is provided at the top of each longitudinal base, lengths of the first racks are distributed along a front-rear direction, a first gear meshed with the first rack is provided at a position corresponding to each longitudinal base at the bottom of each movable buffer ring, and each first gear is driven to rotate by the second driving device.
Preferably, in the above technical solution, the left and right ends of the bottom of each movable buffer ring are respectively provided with a height adjusting device, each height adjusting device includes two support plates, two support plates are respectively disposed on the left and right sides of the end of the movable buffer ring, each support plate is provided with at least one second rack on one side of the movable buffer ring, the length of each second rack is distributed along the up-down direction, the movable buffer ring is provided with a plurality of second gears corresponding to the second racks on the positions corresponding to each support plate, and all the second gears rotate through third motor driving.
Preferably, in the above technical solution, the vehicle further includes a detection device, where the detection device is installed on a front side of a top of the movable buffer ring, and is configured to detect model information and vehicle speed information of a vehicle in front.
Compared with the prior art, the invention has the following beneficial effects:
1. The longitudinal base of the tunnel buffer structure can move along the left-right direction of the guide seat, and the height of the movable buffer ring can be adjusted so as to adjust the cross-sectional area of the movable buffer ring; each movable buffer ring can move along the front-back direction of the longitudinal base to adjust the density of the movable buffer rings, so that the buffer effect of the movable buffer rings is improved; the longitudinal, transverse and vertical positions of the tunnel buffer structure are adjusted, so that the tunnel buffer structure can adapt to different tunnel portal forms, tunnel cross section areas, vehicle types, vehicle speeds and the like, and the buffer effect is greatly optimized; and this tunnel buffer structure can be customized in advance, with its transportation to scene again assemble, and simple installation is convenient, improves work efficiency, can recycle.
2. The tunnel buffer structure also comprises a plurality of movable stabilizing plates, and each movable buffer ring is connected with each movable stabilizing plate in a mode of being capable of moving back and forth, so that the overall stability of the tunnel buffer structure is improved, and the flexibility of automatic adjustment of the tunnel buffer structure is not affected.
Drawings
Fig. 1 is a schematic main structure of a fully automatically adjusted tunnel buffer structure according to the present invention.
Fig. 2 is a schematic front view of fig. 1 in accordance with the present invention.
Fig. 3 is a schematic view of the installation structure of the height adjusting device and the movable buffer ring according to the present invention.
The main reference numerals illustrate:
1-a longitudinal base, 1-1-a first rack, 1-2-a second guide rail wheel, 2-a transverse base, 2-1-a second guide rail, 3-a movable stabilizing plate, 3-1-a first guide rail, 4-a movable buffer ring, 4-1-a ring body, 4-2-connecting pieces, 5-height adjusting devices, 5-1-second motors, 5-2-first gears, 5-3-supporting plates, 5-4-second gears, 5-5-second racks, 6-detecting devices and 7-first guide rail wheels.
Detailed Description
The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
Fig. 1 to 3 show a schematic structural view of a fully automatically adjustable tunnel buffer structure according to a preferred embodiment of the present invention, which comprises two guide holders, two longitudinal bases 1 and several movable buffer rings 4. Referring to fig. 1 to 3, two guide seats are oppositely arranged left and right, each guide seat comprises a plurality of transverse bases 2, the plurality of transverse bases 2 are uniformly distributed from front to back, and the length of each transverse base 2 is distributed along the left and right direction; the two longitudinal bases 1 are arranged in parallel left and right, and the two longitudinal bases 1 are respectively arranged on one guide seat in a manner of being capable of moving left and right, namely, the corresponding longitudinal bases 1 are arranged on all the transverse bases 2 of the corresponding guide seats, and each longitudinal base 1 is driven by a first driving device to move left and right; each movable buffer ring 4 is installed between the two longitudinal bases 1 in a mode of being capable of moving back and forth, and each movable buffer ring 4 is driven by a second driving device to move back and forth; each movable buffer ring 4 is distributed in a U-shaped mode with a downward opening, the top of each movable buffer ring 4 can stretch left and right, the height of each movable buffer ring 4 can be adjusted, and each movable buffer ring 4 is adjusted through a height adjusting device 5. The longitudinal base 1 of the tunnel buffer structure can move along the left-right direction of the guide seat, and the height of the movable buffer ring 4 can be adjusted so as to adjust the cross section area of the movable buffer ring 4; each movable buffer ring 4 can move along the longitudinal base 1 in the front-back direction to adjust the density of the movable buffer rings 4, thereby improving the buffer effect thereof, such as adjusting the interval between the movable buffer rings 4 to gradually increase from the tunnel portal to the outside; the longitudinal, transverse and vertical positions of the tunnel buffer structure are adjusted, so that the tunnel buffer structure can adapt to different tunnel portal forms, tunnel cross section areas, vehicle types, vehicle speeds and the like, and the buffer effect is greatly optimized; and this tunnel buffer structure can be customized in advance, with its transportation to scene again assemble, simple and convenient installation, and can recycle, improvement work efficiency.
Referring to fig. 1 to 3, preferably, the tunnel buffer structure further includes a plurality of movable stabilizer plates 3, the plurality of movable stabilizer plates 3 are installed on all the movable buffer rings 4 at intervals, the length of each movable stabilizer plate 3 is distributed along the front-rear direction, and each movable buffer ring 4 is connected with each movable stabilizer plate 3 in a manner capable of moving back-and-forth, so that the overall stability of the tunnel buffer structure is increased, and the flexibility of automatic adjustment thereof is not affected. Further preferably, the number of the movable stabilizer plates 3 is at least three, and the three movable stabilizer plates 3 are respectively installed at the left, right and top of all the movable buffer rings 4 to improve the stability of the movable buffer rings 4. Wherein, each movable stabilizing plate 3 is provided with at least one first guide rail 3-1, the length of each first guide rail 3-1 is distributed along the front-back direction, and the movable buffer ring 4 is provided with a first guide rail wheel 7 matched with the first guide rail 3-1 at a position corresponding to each movable stabilizing plate 3.
Referring to fig. 1 to 3, preferably, each movable buffer ring 4 includes two ring bodies 4-1 and a connecting member 4-2, each ring body 4-1 is distributed in a circular arc shape, the opening directions of the two ring bodies 4-1 are distributed left and right relatively so as to enclose a movable buffer ring 4 in a U shape with a downward opening, the upper end of the left ring body 4-1 is connected with the left end of the connecting member 4-2 in a manner capable of sliding left and right, and the upper end of the right ring body 4-1 is connected with the right end of the connecting member 4-2 in a manner capable of sliding left and right, so that the top of the movable buffer ring 4 can stretch left and right. Wherein, the movable stabilizer plate 3 positioned at the top of all the movable buffer rings 4 is installed at the top of the connecting piece 4-2, and the first guide rail wheel 7 matched with the first guide rail 3-1 of the movable stabilizer plate 3 is arranged at the top of the connecting piece 4-2.
Referring to fig. 1 to 3, preferably, at least one second rail 2-1 is provided on each lateral base 2, the second rails 2-1 are distributed in the left-right direction, the bottom of the longitudinal base 1 is provided with second rail wheels 1-2 matched with the second rails 2-1 at positions corresponding to each lateral base 2, and all the second rail wheels 1-2 are driven to rotate by the first driving device. The first driving device comprises a first motor, each longitudinal base 1 is provided with the first motor at a position corresponding to each transverse base 2, an output shaft of the first motor is connected with a rotating shaft of the second guide rail wheel 1-2, and the second guide rail wheel 1-2 is driven by the first motor to move left and right on the corresponding second guide rail 2-1.
Referring to fig. 2 and 3, preferably, a height adjusting device 5 is respectively disposed at left and right ends of a bottom of each movable buffer ring 4, each height adjusting device 5 includes two support plates 5-3, the two support plates 5-3 are respectively disposed at left and right sides of an end of the movable buffer ring 4, each support plate 5-3 is provided with at least one second rack 5-5 at a side of the movable buffer ring 4, a length of each second rack 5-5 is distributed along an up-down direction, the movable buffer ring 4 is provided with a plurality of second gears 5-4 corresponding to the second racks 5-5 at positions corresponding to each support plate 5-3, and the second gears 5-4 are driven to rotate by a third motor to adjust a height of the movable buffer ring 4. Wherein, the movable stabilizing plates 3 positioned at the left side and the right side of all the movable buffer rings 4 are distributed and installed on the supporting plates 5-3 of the corresponding height adjusting devices 5, and the first guide wheels 7 matched with the first guide rails 3-1 of the two movable stabilizing plates 3 are arranged on the side surfaces of the corresponding supporting plates 5-3.
Referring to fig. 1 to 3, preferably, the top of each longitudinal base 1 is provided with a first rack 1-1, the lengths of the first racks 1-1 are distributed in the front-rear direction, the bottom of each movable buffer ring 4 is provided with a first gear 5-2 engaged with the first rack 1-1 at a position corresponding to each longitudinal base 1, i.e., the bottom of the height adjusting device 5 of each movable buffer ring 4 is provided with a first gear 5-2 engaged with the first rack 1-1, and each first gear 5-2 is driven to rotate by a second driving device. The second driving device comprises a second motor 5-1, the second motor 5-1 is arranged at the corresponding position of the height adjusting device 5, an output shaft of the second motor 5-1 is connected with a rotating shaft of a corresponding first gear 5-2, and the first gear 5-2 is driven to rotate through the second motor 5-1, so that the movable buffer ring 4 can move back and forth along the longitudinal base 1 to adjust the density of the movable buffer ring.
Referring to fig. 1 to 3, it is preferable that the tunnel buffer structure further includes a detecting device 6, the detecting device 6 being installed at a front side of a top of the frontmost movable buffer ring 4 for detecting model information and speed information of a vehicle in front, and adjusting a density of the movable buffer ring 4 and a sectional area of the tunnel buffer structure according to the model information and speed information of the vehicle.
The tunnel buffer structure also comprises a controller, the detection device 6 and all motors are connected with the controller, when the detection device 6 detects that a vehicle arrives in front and detects the model information and the vehicle speed information of the vehicle, the model information and the vehicle speed information are transmitted to the controller, the controller controls the work of each motor according to the model information and the vehicle speed information, and the height, the width and the density of the movable buffer ring 4 are adjusted, namely the cross section area of the tunnel buffer structure and the density of the movable buffer ring 4 are adjusted, so that the tunnel buffer structure is suitable for different vehicles and vehicle speeds, and the buffer effect is improved.
The tunnel buffer structure is arranged at the inlet and outlet of the tunnel, and can realize full-automatic adjustment of the section area, the distance and the height of the movable buffer ring, so that the full-automatic control and adjustment are realized, the tunnel buffer structure is suitable for vehicles with different tunnel portal forms, tunnel section areas, different types and vehicle speeds, and the buffer effect is improved.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (3)
1. A fully automatically adjusted tunnel buffer structure, comprising:
The two guide seats are oppositely arranged left and right, each guide seat comprises a plurality of transverse bases, the plurality of transverse bases are uniformly distributed from front to back, and the length of each transverse base is distributed along the left and right direction;
The two longitudinal bases are arranged in parallel left and right, and are respectively arranged on one guide seat in a manner of being capable of moving left and right, and each longitudinal base is driven by a first driving device to move left and right; and
The movable buffer rings are arranged between the two longitudinal bases in a mode of being capable of moving back and forth, and are driven by the second driving device to move back and forth; each movable buffer ring is distributed in a U shape with a downward opening, the top of each movable buffer ring can stretch left and right, the height of each movable buffer ring can be adjusted, and each movable buffer ring is adjusted through a height adjusting device;
The movable stabilizing plates are arranged on all the movable buffer rings at intervals, the length of each movable stabilizing plate is distributed along the front-back direction, and each movable buffer ring is connected with each movable stabilizing plate in a mode of being capable of moving back and forth;
At least one first guide rail is arranged on each movable stabilizing plate, each first guide rail is distributed along the front-back direction, and a first guide rail wheel matched with each first guide rail is arranged on the position of each movable buffering ring corresponding to each movable stabilizing plate;
Each movable buffer ring comprises two ring bodies and a connecting piece, each ring body is in circular arc distribution, the opening directions of the two ring bodies are distributed oppositely left and right, the upper end of the left ring body is connected with the left end of the connecting piece in a manner of being capable of sliding left and right, and the upper end of the right ring body is connected with the right end of the connecting piece in a manner of being capable of sliding left and right;
At least one second guide rail is arranged on each transverse base, each second guide rail is distributed along the left-right direction, second guide rail wheels matched with the second guide rails are arranged at the positions corresponding to the transverse bases at the bottoms of the longitudinal bases, and all the second guide rail wheels are driven to rotate by the first driving device;
The top of each longitudinal base is provided with a first rack, the lengths of the first racks are distributed along the front-back direction, the bottom of each movable buffer ring is provided with a first gear meshed with the first rack at a position corresponding to each longitudinal base, and each first gear is driven to rotate by the second driving device;
The movable buffer ring is characterized in that the left end and the right end of the bottom of the movable buffer ring are respectively provided with a height adjusting device, each height adjusting device comprises two supporting plates, the two supporting plates are respectively arranged on the left side and the right side of the end of the movable buffer ring, each supporting plate is provided with at least one second rack on one side of the movable buffer ring, the length of each second rack is distributed along the upper and lower directions, the movable buffer ring is provided with a plurality of second gears corresponding to the second racks on the positions corresponding to the supporting plates, and all the second gears are driven by a third motor to rotate.
2. The fully automatically adjustable tunnel buffer structure of claim 1, wherein the number of the movable stabilizing plates is at least three, and the three movable stabilizing plates are respectively installed at the left side, the right side and the top of all the movable buffer rings.
3. The fully automatically adjusted tunnel buffer structure according to claim 1, further comprising a detection device mounted to a front side of a top of the movable buffer ring for detecting model information and vehicle speed information of a vehicle in front.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911172463.5A CN110735649B (en) | 2019-11-26 | 2019-11-26 | Full automatically regulated's tunnel buffer structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911172463.5A CN110735649B (en) | 2019-11-26 | 2019-11-26 | Full automatically regulated's tunnel buffer structure |
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| Publication Number | Publication Date |
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| CN110735649A CN110735649A (en) | 2020-01-31 |
| CN110735649B true CN110735649B (en) | 2024-05-17 |
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| CN104213926A (en) * | 2014-09-17 | 2014-12-17 | 中南大学 | Self-adaptive device for wind pressure transition of tunnel portal of high speed railway |
| CN108868813A (en) * | 2018-06-27 | 2018-11-23 | 西南交通大学 | A kind of railway tunnel buffer structure |
| CN109281690A (en) * | 2018-05-31 | 2019-01-29 | 中铁隧道集团二处有限公司 | A kind of anchor bar of waterproof plate in tunnels laying machine |
| CN211230482U (en) * | 2019-11-26 | 2020-08-11 | 广西大学 | Full automatically regulated's tunnel buffer structure |
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2019
- 2019-11-26 CN CN201911172463.5A patent/CN110735649B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100619545B1 (en) * | 2006-02-15 | 2006-09-07 | (주)다산컨설턴트 | The buffer installed in the inside of a tunnel |
| JP2012225010A (en) * | 2011-04-18 | 2012-11-15 | Railway Technical Research Institute | Soundproof device |
| CN103032079A (en) * | 2012-12-31 | 2013-04-10 | 中铁第四勘察设计院集团有限公司 | Constant annular width bevel type tunnel opening buffer structure |
| CN103670436A (en) * | 2013-11-29 | 2014-03-26 | 西南交通大学 | Lateral stripped sonic boom control structure of high-speed rail tunnel portal |
| CN104213926A (en) * | 2014-09-17 | 2014-12-17 | 中南大学 | Self-adaptive device for wind pressure transition of tunnel portal of high speed railway |
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