CN111636895A - Full automatically regulated's foldable green tunnel buffer structure - Google Patents
Full automatically regulated's foldable green tunnel buffer structure Download PDFInfo
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- CN111636895A CN111636895A CN202010574455.XA CN202010574455A CN111636895A CN 111636895 A CN111636895 A CN 111636895A CN 202010574455 A CN202010574455 A CN 202010574455A CN 111636895 A CN111636895 A CN 111636895A
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- 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
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Abstract
The invention discloses a fully-automatically-adjusted folding type green tunnel buffer structure, which comprises: two guide bases arranged in parallel left and right; the movable rigid frames are sequentially and transversely arranged on the two guide bases from back to front and positioned in front of the fixed rigid frames, and each movable rigid frame can move back and forth; a light-transmitting plate capable of being folded back and forth is arranged between two adjacent rigid frames, the light transmittance of each light-transmitting plate is gradually increased from back to front, and the light transmittance of all the light-transmitting plates is gradually increased from back to front; each rigid frame and each light-transmitting plate are in a shape of a 'with an opening facing downwards', and the distance between the lower ends of the left side and the right side of each light-transmitting plate and the ground is gradually increased from back to front. The tunnel buffer structure can solve the aerodynamic effect and adjust the brightness difference according to the external illumination intensity.
Description
Technical Field
The invention relates to the technical field of tunnel engineering, in particular to a fully-automatically-adjusted folding type green tunnel buffer structure.
Background
With the development of traffic industry, the total length of tunnels built in China reaches the front of the world, and great attention is paid to the traffic safety problem at the entrance and the exit of the tunnels. Researches show that due to the fact that the difference of illumination and brightness of the environment inside and outside the tunnel is large, the illumination and space transition is severe, when vehicles running at high speed enter the tunnel, a 'black hole effect' is generated, when the vehicles run out of the tunnel, a 'white hole effect' is generated, pupils of people are drastically increased or reduced, visual shock is formed, a psychological tension is generated, the operation of a driver is greatly influenced, and therefore traffic accidents are caused; vehicles running at high speed can enter and exit the tunnel to cause aerodynamic effect, bring harm such as micro-pressure wave problem, noise problem and the like, have great interference on comfort of personnel on the vehicle, and tunnel internal facility equipment and vehicle body structure can bear damage in different degrees and can cause noise and environmental pollution.
Therefore, in order to effectively eliminate the above problem, a tunnel buffer structure may be provided at the entrance of the tunnel. The visual effect of the tunnel entrance is influenced by factors such as the form of the tunnel entrance, the intensity of light inside and outside the tunnel, the illumination intensity and the like; tunnel entrance to a cave form, train and tunnel cross sectional area, tunnel structure ventilation form and speed of a motor vehicle etc. are the main factor that produces the aerodynamic effect, but the variable interval floor type sunshade canopy construction process of current reinforced concrete arch structure is complicated, and the completion speed is slow, can not recycle, can't adjust according to factors such as illumination time and illumination intensity after the design is accomplished, and can produce the facula of different sizes, still can cause the influence to navigating mate's vision, can't reach better and alleviate "black hole effect", "white hole effect" and tunnel aerodynamic effect. In addition, although the single light transmittance material used in the existing sunshade at the entrance and exit of the tunnel in China reduces the brightness difference inside and outside the tunnel, the brightness difference cannot be adjusted according to the real-time illumination change, and the problems of the black hole effect and the white hole effect are optimally solved; and the sunshade that sets up the overlength in tunnel entrance to a cave department can reduce the space utilization of tunnel access & exit, influences the ventilation in the tunnel even.
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 skilled in the art.
Disclosure of Invention
The invention aims to provide a fully-automatically-adjusted folding type green tunnel buffer structure, so that the defects that the existing tunnel buffer structure is a reinforced concrete arch-shaped fixed structure, the construction time is long, the tunnel buffer structure cannot be recycled, and the brightness difference outside the tunnel opening cannot be adjusted according to the illumination intensity are overcome.
In order to achieve the above object, the present invention provides a fully automatically adjustable folding type green tunnel buffer structure, comprising: the two guide bases are arranged in parallel from left to right, and the length of each guide base is distributed along the front-back direction; the movable rigid frames are sequentially and transversely arranged between the two guide bases from back to front and are positioned in front of the fixed rigid frames, each movable rigid frame can move back and forth, and each movable rigid frame is driven by a driving device to move back and forth; a light-transmitting plate capable of being folded back and forth is arranged between two adjacent rigid frames, the light transmittance of each light-transmitting plate is gradually increased from back to front, and the light transmittance of all the light-transmitting plates is gradually increased from back to front; each rigid frame and each light-transmitting plate are in a shape of a 'with an opening facing downwards', and the distance between the lower ends of the left side and the right side of each light-transmitting plate and the ground is gradually increased from back to front.
Preferably, in the above technical solution, between two adjacent rigid frames, the light-transmitting plate includes: the length of each transverse light-transmitting block is distributed along the left-right direction, and all the transverse light-transmitting blocks are sequentially arranged from back to front and are arranged at the tops of the two rigid frames in a manner of being capable of being folded back and forth; the length of each first longitudinal light-transmitting block is distributed along the vertical direction, and all the first longitudinal light-transmitting blocks are sequentially arranged from back to front and are arranged on the left sides of the two rigid frames in a manner of being capable of being folded back and forth; and the length of each second longitudinal plate is distributed along the vertical direction, and all the second longitudinal light-transmitting blocks are sequentially arranged from back to front and are arranged on the right sides of the two rigid frames in a manner of being capable of being folded back and forth.
Preferably, in the above technical solution, the light-transmitting plate is a polarizing plate.
Preferably, in the above technical solution, the polarizing plate is made of a resin polarizing material.
Preferably, in the above technical solution, the rigid frame is made of a metal material.
Preferably, in the above technical solution, a guide rail is arranged on the top surface of each guide base, the length of each guide rail is distributed along the length direction of the corresponding guide base, a guide wheel matched with the guide rail is arranged at a position corresponding to each guide rail at the bottom of each movable rigid frame, and the guide wheel of each movable rigid frame is driven by one driving device to rotate.
Preferably, in the above technical solution, the driving device is of a motor structure.
Preferably, in the above technical solution, the driving device further includes a photoresistance control device, the photoresistance control device is respectively in data connection with each of the driving devices, wherein the photoresistance control device is configured to acquire outside illumination intensity information and control the operation of each of the driving devices according to the illumination intensity information.
Preferably, in the above technical solution, the photoresistor control device is mounted at an upper end of the movable rigid frame located at the forefront.
Compared with the prior art, the invention has the following beneficial effects:
1. the light-transmitting plates capable of being folded back and forth are arranged between two adjacent rigid frames of the tunnel buffer structure, the light transmittance of each light-transmitting plate is gradually increased from back to front, the light transmittance of all the light-transmitting plates is gradually increased from back to front, and the brightness difference outside the tunnel opening can be gradually reduced from far to near; the tunnel buffer structure can move a corresponding number of movable rigid frames under the control of the driving device according to the illumination intensity, and the length of the tunnel buffer structure is adjusted, so that the brightness in the tunnel buffer structure can be gradually reduced from front to back, and the internal and external brightness of the tunnel portal is gradually transited, thereby achieving the effect of eliminating the 'black hole effect' generated when a high-speed running automobile enters the tunnel and the 'white hole effect' generated when the automobile exits the tunnel, enabling a driver to visually clearly judge the speed and distance of the automobile, and ensuring the driving safety when the automobile enters and exits the tunnel; the tunnel buffer structure can be customized in advance and then transported to the site for assembly, so that the tunnel buffer structure is simple and convenient to install, the working efficiency is improved, and the tunnel buffer structure is convenient to recycle; all the light-transmitting plates are distributed in a shape of a downward opening, the distance between the lower ends of the left side and the right side of all the light-transmitting plates and the ground is gradually increased from back to front, when a vehicle drives into the tunnel at a high speed, the extruded air can be quickly and smoothly discharged out of the tunnel, the hazards of micro-pressure waves, power problems, noise pollution and the like caused by aerodynamic effects are effectively relieved, and ventilation and harmful gas emission in the tunnel are promoted.
2. The light-transmitting plate is a polarizing plate, and the polarizing plate is made of resin polarizing materials, so that the light-transmitting plate has the advantages of light weight, easiness in dyeing, difficulty in breaking and the like, and is easy to install and replace, and fragments are few and not sharp after being broken.
3. The tunnel buffer structure also comprises a sensitive resistance control device which can automatically control the work of each driving device according to the intensity of external illumination, and adjust and move the corresponding movable rigid frame to ensure that the illumination intensity inside and outside the tunnel portal is slowly reduced or increased, so that a driver can not suffer from black hole effect and white hole effect caused by illumination abrupt change visually; wherein, this tunnel buffer structure not only can adapt to the area of the different illumination intensity in every season, can also adapt to the big area of illumination intensity change in the same day, and does not need artifical the regulation, and degree of automation is high, and the practicality is strong.
Drawings
Fig. 1 is a three-dimensional structural schematic diagram of a fully automatically adjusting folding green tunnel buffer structure according to the present invention.
Fig. 2 is a partial three-structure schematic view of fig. 1 in another orientation according to the present invention.
Fig. 3 is a front view schematic of fig. 1 in accordance with the present invention.
Fig. 4 is a schematic top view of fig. 1 according to the present invention.
Description of the main reference numerals:
the method comprises the following steps of 1-a guide base, 2-a first longitudinal light-transmitting block, 3-a fixed rigid frame, 4-a transverse light-transmitting block, 5-a photoresistor control device, 6-a second longitudinal light-transmitting block, 7-a movable rigid frame, 8-a guide wheel, 9-a guide rail, 10-a driving device and 11-a shaft rod.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Fig. 1 to 4 show a structural schematic diagram of a fully automatically adjusting folding green tunnel buffer structure according to a preferred embodiment of the present invention, which comprises two guide bases 1 and a plurality of rigid frames. Referring to fig. 1 to 4, two guide bases 1 are arranged in parallel left and right, and the length of each guide base 1 is distributed in the front-rear direction. Among all the rigid frames, one rigid frame is a fixed rigid frame 3, and the other rigid frames are moving rigid frames 7. The fixed rigid frame 3 is transversely fixed at the rear ends of the two guide bases 1, and all the movable rigid frames 7 are sequentially transversely arranged between the two guide bases 1 from back to front and are positioned in front of the fixed rigid frame 3. Each movable rigid frame 7 can move back and forth, and each movable rigid frame 7 is driven to move back and forth by one driving device 10. During installation, the rear end of the tunnel buffer structure is connected with the tunnel portal, namely, the two guide bases 1 are positioned on two sides of the tunnel portal, the fixed rigid frame 3 is arranged close to the tunnel portal, and all the movable rigid frames 7 are sequentially arranged from the tunnel portal to a far place. Be equipped with a light-passing board that can fold around between two adjacent rigid frames, the luminousness of every light-passing board is crescent from back to front, and the luminousness of all light-passing boards is crescent from back to front, reduces the luminance difference outside the tunnel entrance to a cave from far away to near gradually. Each rigid frame and each light-transmitting plate are in a shape of a 'T' with the opening facing downwards, the distance between the lower ends of the left side and the right side of each light-transmitting plate and the ground is gradually increased from back to front, when a vehicle drives into the tunnel at high speed, the extruded air can be quickly and smoothly discharged out of the tunnel, the hazards of micro-pressure waves, power problems, noise pollution and the like caused by aerodynamic effects are effectively relieved, and ventilation in the tunnel and emission of harmful gas are promoted. The tunnel buffer structure can play a role in buffering, solves the problem of aerodynamic effect, and can control and move a corresponding number of movable rigid frames 7 through the driving device 10 according to the illumination intensity to adjust the length of the tunnel buffer structure so as to gradually reduce the brightness in the tunnel buffer structure from front to back and enable the brightness inside and outside the tunnel hole to be transited gently, thereby achieving the effect of eliminating the 'black hole effect' generated when a high-speed driving automobile enters the tunnel and the 'white hole effect' generated when the automobile exits the tunnel, enabling a driver to visually clearly judge the speed and distance of the automobile, and ensuring the driving safety when the automobile enters and exits the tunnel; and this tunnel buffer structure can customize in advance, transports it to the scene again and assembles, and the installation is simple and convenient, improves work efficiency, the recycle of being convenient for.
Referring to fig. 1, 2 and 4, preferably, between two adjacent rigid frames, the light-transmitting plate includes a plurality of transverse light-transmitting blocks 4, a plurality of first longitudinal light-transmitting blocks 2 and a plurality of second longitudinal light-transmitting blocks 6, the length of each transverse light-transmitting block 4 is distributed along the left-right direction, and all the transverse light-transmitting blocks 4 are sequentially arranged from back to front and are mounted on the tops of the two rigid frames in a manner of being capable of being folded back and forth; the length of each first longitudinal light-transmitting block 2 is distributed along the vertical direction, and all the first longitudinal light-transmitting blocks 2 are sequentially arranged from back to front and are arranged on the left sides of the two rigid frames in a manner of being capable of being folded back and forth; the length of each second longitudinal plate is distributed along the up-down direction, and all the second longitudinal light-transmitting blocks 6 are sequentially arranged from back to front and are arranged on the right sides of the two rigid frames in a manner of being capable of being folded back and forth, so that the light-transmitting plates can be folded and unfolded conveniently. Specifically, the two adjacent rigid frames, the two adjacent transverse light-transmitting blocks 4, the two adjacent first longitudinal light-transmitting blocks 2 and the two adjacent second longitudinal light-transmitting blocks 6 are hinged through a shaft rod 11, the front end of the first transverse light-transmitting block 4 positioned on the front side, the front end of the first longitudinal light-transmitting block 2 positioned on the front side and the front end of the first second longitudinal light-transmitting block 6 positioned on the front side are hinged with the rigid frame on the front side, and the rear end of the last transverse light-transmitting block 4 positioned on the rear side, the rear end of the last first longitudinal light-transmitting block 2 positioned on the rear side and the rear end of the last second longitudinal light-transmitting block 6 positioned on the rear side are hinged with the rigid frame on the rear side, so that all the rigid frames are connected into a whole through the light-transmitting plate; and the cross sections of all the transverse light-transmitting blocks 4 in the front-back direction, the cross sections of all the first longitudinal light-transmitting blocks 2 in the front-back direction and the cross sections of all the second longitudinal light-transmitting blocks 6 in the front-back direction are in a sawtooth shape, so that the light-transmitting plates can be unfolded and folded conveniently. The light transmittance of all the transverse light-transmitting blocks 4, the light transmittance of all the first longitudinal light-transmitting blocks 2 and the light transmittance of all the second longitudinal light-transmitting blocks 6 are gradually increased from back to front. And the connecting lines of the lower ends of all the first longitudinal light-transmitting blocks 2 along the front-back direction and the connecting lines of the lower ends of all the second longitudinal light-transmitting blocks 6 along the front-back direction are inclined upwards from back to front.
Referring to fig. 1 to 4, preferably, the light-transmitting plate is a polarizing plate, and the polarizing plate is made of a resin polarizing material, i.e., each transverse light-transmitting block 4, each first longitudinal light-transmitting block 2, and each second longitudinal light-transmitting block 6 are made of a resin polarizing material, having advantages of light weight, easy dyeing, and no easy breakage, and even after being crushed, the fragments are few and not sharp, and easy to install and replace.
Referring to fig. 1 to 4, preferably, the rigid frame is made of a metal material, further improving the recycling rate thereof. In order to facilitate the installation of the rigid frame, the guide base 1 is of a concrete structure.
Referring to fig. 1 to 4, preferably, the top surface of each guide base 1 is provided with a guide rail 9, the length of each guide rail 9 is distributed along the length direction of the corresponding guide base 1, the bottom of each movable rigid frame 7 is provided with a guide wheel 8 matched with the guide rail 9 at the position corresponding to each guide rail 9, and the guide wheel 8 of each movable rigid frame 7 is driven to rotate by a driving device 10. The driving device 10 is of a motor structure, and the guide wheels 8 of the corresponding movable rigid frame 7 are driven to move back and forth along the guide rails 9 on the guide base 1 through the rotation of the motor.
Referring to fig. 1 to 4, each movable rigid frame 7 can be manually controlled by a corresponding driving device 10 according to the intensity of light, and also can be controlled by a photoresistor control device 5, so as to improve the automation degree of the tunnel buffer structure control. Preferably, the tunnel buffer structure further comprises a photoresistor control device 5, wherein the photoresistor control device 5 is in data connection with each driving device 10, and the photoresistor control device 5 is configured to obtain outside illumination intensity information and control the operation of each driving device 10 according to the illumination intensity information. That is, the photoresistance control device 5 can automatically control the work of each driving device 10, that is, the work of each motor according to the intensity of external illumination, so as to control and move the corresponding movable rigid frame 7, so that the illumination intensity inside and outside the tunnel portal is slowly reduced or increased, and a driver cannot be subjected to a black hole effect and a white hole effect caused by illumination abrupt change visually; thereby make this tunnel buffer structure not only can adapt to the area of the different illumination intensity in every season, can also adapt to the big area of illumination intensity change in the same day, and do not need manual regulation, degree of automation is high, and the practicality is strong. The photoresistor control device 5 may be installed near the rigid frame structure, or may be installed on the rigid frame, so as to facilitate the photoresistor control device 5 to obtain the illumination intensity information and control the operation of the driving device 10. Further preferably, the photoresistor control device 5 is mounted on the upper end of the moving rigid frame 7 located at the forefront, that is, on the upper end of the moving support located at the farthest distance from the tunnel portal. The photo-resistor control device 5 may include, among other things, an illumination intensity sensor and a controller.
When the tunnel buffer structure is used, the tunnel buffer structure is prefabricated in a factory and then installed at the tunnel opening; when the illumination intensity is strong, the first moving rigid frame and the second moving rigid frame are continuously moved forwards, the light transmission plates between the first moving rigid frame and the second moving rigid frame and the light transmission plates between the second moving rigid frame and the third moving rigid frame are controlled to be unfolded, and the like; on the contrary, when the illumination intensity is reduced, the transparent plates between the movable rigid frames 7 are sequentially controlled to be folded; when guaranteeing tunnel buffer structure's shock-absorbing capacity, can also remove corresponding removal rigid frame 7 according to the illumination intensity adjustment, thereby adjustment tunnel buffer structure's length, so that luminance in the tunnel buffer structure can reduce from the front gradually to the back, make the inside and outside luminance of tunnel portal transition gently, reach the effect of eliminating "black hole effect" that produces when high-speed driving car gets into the tunnel and the "white hole effect" that produces when rolling off the tunnel, let navigating mate can clearly judge speed of a motor vehicle and distance in the vision, driving safety when the guarantee passes in and out the tunnel.
The foregoing descriptions of specific exemplary embodiments of the present invention have been 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 certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and 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 (9)
1. The utility model provides a full automatically regulated's foldable green tunnel buffer structure which characterized in that includes:
the two guide bases are arranged in parallel from left to right, and the length of each guide base is distributed along the front-back direction; and
the movable rigid frames are arranged between the two guide bases in sequence from back to front and are positioned in front of the fixed rigid frames, each movable rigid frame can move back and forth, and each movable rigid frame is driven by a driving device to move back and forth; a light-transmitting plate capable of being folded back and forth is arranged between two adjacent rigid frames, the light transmittance of each light-transmitting plate is gradually increased from back to front, and the light transmittance of all the light-transmitting plates is gradually increased from back to front; each rigid frame and each light-transmitting plate are in a shape of a 'with an opening facing downwards', and the distance between the lower ends of the left side and the right side of each light-transmitting plate and the ground is gradually increased from back to front.
2. The fully automatically adjusting, folding green tunnel buffer structure of claim 1, wherein between two adjacent rigid frames, said light-transmitting panel comprises:
the length of each transverse light-transmitting block is distributed along the left-right direction, and all the transverse light-transmitting blocks are sequentially arranged from back to front and are arranged at the tops of the two rigid frames in a manner of being capable of being folded back and forth;
the length of each first longitudinal light-transmitting block is distributed along the vertical direction, and all the first longitudinal light-transmitting blocks are sequentially arranged from back to front and are arranged on the left sides of the two rigid frames in a manner of being capable of being folded back and forth; and
the length of each second longitudinal plate is distributed along the vertical direction, and all the second longitudinal light-transmitting blocks are sequentially arranged from back to front and are arranged on the right sides of the two rigid frames in a manner of being capable of being folded back and forth.
3. The fully automatically adjusting folded green tunnel buffer structure of claim 1, wherein the light-transmitting plate is a polarizer.
4. The fully automatically adjusting folded green tunnel buffer structure of claim 3, wherein the polarizer is made of a resin polarizing material.
5. The fully automatically adjusting, folding green tunnel buffer structure of claim 1, wherein said rigid frame is made of a metallic material.
6. The fully automatically adjusting folding type green tunnel buffer structure according to claim 1, wherein a guide rail is disposed on the top surface of each of the guide bases, the length of each of the guide rails is distributed along the length direction of the corresponding guide base, a guide wheel matched with the guide rail is disposed on the bottom of each of the movable rigid frames at a position corresponding to each of the guide rails, and the guide wheel of each of the movable rigid frames is driven by one of the driving devices to rotate.
7. The fully automatically adjusting folding green tunnel buffer structure of claim 6, wherein said driving means is a motor structure.
8. The fully automatically adjusting folding green tunnel buffer structure according to claim 1, further comprising a photo-resistor control device, said photo-resistor control device being in data connection with each of said driving devices, wherein said photo-resistor control device is configured to obtain ambient light intensity information and control the operation of each of said driving devices according to said light intensity information.
9. The fully automatically adjusting folding green tunnel buffer structure of claim 8, wherein said photo-resistance control device is mounted on the upper end of said moving rigid frame located at the forefront.
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| CN202010574455.XA CN111636895B (en) | 2020-06-22 | 2020-06-22 | Full automatically regulated's folding green tunnel buffer structure |
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| CN202010574455.XA CN111636895B (en) | 2020-06-22 | 2020-06-22 | Full automatically regulated's folding green tunnel buffer structure |
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| CN104453938A (en) * | 2014-12-15 | 2015-03-25 | 中铁第四勘察设计院集团有限公司 | Retaining plate type buffering structure in railway tunnel |
| CN205349347U (en) * | 2015-12-28 | 2016-06-29 | 招商局重庆交通科研设计院有限公司 | Tunnel face intelligence vision buffer system |
| CN205895257U (en) * | 2016-07-06 | 2017-01-18 | 山西省交通建设工程监理总公司 | Tunnel face luminance gradual change economizer system |
| DE102016003333A1 (en) * | 2016-03-14 | 2017-12-14 | Baumhaustechnik GbR (vertretungsberechtigte Gesellschafter: Dipl.-Ing. (FH) Karl Weißenmayer, 75365 Calw, Dipl. Dipl. (FH) Tobias Weißenmayer, 75365 Calw) | Tunnel system with pressure optimization and bat protection |
| CN212337296U (en) * | 2020-06-22 | 2021-01-12 | 广西大学 | Full automatically regulated's foldable green tunnel buffer structure |
-
2020
- 2020-06-22 CN CN202010574455.XA patent/CN111636895B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453938A (en) * | 2014-12-15 | 2015-03-25 | 中铁第四勘察设计院集团有限公司 | Retaining plate type buffering structure in railway tunnel |
| CN205349347U (en) * | 2015-12-28 | 2016-06-29 | 招商局重庆交通科研设计院有限公司 | Tunnel face intelligence vision buffer system |
| DE102016003333A1 (en) * | 2016-03-14 | 2017-12-14 | Baumhaustechnik GbR (vertretungsberechtigte Gesellschafter: Dipl.-Ing. (FH) Karl Weißenmayer, 75365 Calw, Dipl. Dipl. (FH) Tobias Weißenmayer, 75365 Calw) | Tunnel system with pressure optimization and bat protection |
| CN205895257U (en) * | 2016-07-06 | 2017-01-18 | 山西省交通建设工程监理总公司 | Tunnel face luminance gradual change economizer system |
| CN212337296U (en) * | 2020-06-22 | 2021-01-12 | 广西大学 | Full automatically regulated's foldable green tunnel buffer structure |
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