CN112482255A - Road bed engineering construction earthwork excavation is with enclosing fender device - Google Patents
Road bed engineering construction earthwork excavation is with enclosing fender device Download PDFInfo
- Publication number
- CN112482255A CN112482255A CN202011384292.5A CN202011384292A CN112482255A CN 112482255 A CN112482255 A CN 112482255A CN 202011384292 A CN202011384292 A CN 202011384292A CN 112482255 A CN112482255 A CN 112482255A
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- Prior art keywords
- fixedly connected
- wall
- dust
- buffer
- engineering construction
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
- E01F7/045—Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/16—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts using prefabricated panel-like elements, e.g. wired frames
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/20—Posts therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/20—Posts therefor
- E04H17/22—Anchoring means therefor, e.g. specially-shaped parts entering the ground; Struts or the like
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to the technical field of building construction, in particular to a barrier device for earth excavation in roadbed engineering construction, which comprises a breast board, wherein the outer wall of one side of the breast board is connected with buffer boards through hinges at equal intervals, guide grooves are formed in the outer wall of the top of each buffer board at equal intervals, buffer springs are fixedly connected to the outer wall of one side of the breast board below each buffer board at equal intervals, the buffer springs are fixedly connected to the outer walls of the buffer boards, and connecting rings are fixedly connected to the outer walls of two sides of the breast board at equal intervals. According to the invention, the buffer plate and the buffer spring are arranged, so that in the process of earth excavation, if soil and stones impact on the buffer plate, the buffer spring behind the buffer plate reduces the impact force of the soil and the stones, so that the soil and the stones can fall down along the guide groove, the damage to the fence plate caused by the soil and the stones is reduced, meanwhile, the pedestrian injury caused by the falling of the soil and the stones outside the fence plate is prevented, and the use value and the safety of the enclosure device are improved.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a fence device for earth excavation in roadbed engineering construction.
Background
The building construction refers to production activities in the engineering construction implementation stage, is the construction process of various buildings, and can also be said to be the process of changing various lines on the design drawing into a real object in a designated place; the method comprises foundation engineering construction, main structure construction, roofing engineering construction, decoration engineering construction and the like. The site of the construction work is called a "construction site" or a "construction site", also called a construction site; when constructing the road base engineering, need enclose the fender through enclosing fender device, prevent to cause the accident.
The existing retaining device for earth excavation in roadbed engineering construction has the defects that: the fender device is generally built through the plate to present enclosing, thereby block near the earthwork excavation, however, this kind of fender mode of enclosing, soil body or the stone striking that the excavation produced are on the plate back, the impact that leads to the fact the plate is great, the easy very big life who shortens this dog, and simultaneously, the soil body or the stone of striking rise along the dog, fall on the outside easily, lead to the fact the injury to the passerby of coming and going, thereby lead to this to enclose fender device use value lower, lack the safety guarantee.
Disclosure of Invention
The invention aims to provide a barrier device for earth excavation in roadbed engineering construction, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a road bed engineering construction earthwork excavation is with enclosing fender device, includes the breast board, there is the buffer board one side outer wall equidistance of breast board through hinge connection, and the top outer wall equidistance of buffer board opens there is the guide way, the breast board is located the one side outer wall of every buffer board below impartial distance fixedly connected with buffer spring, and the equal fixed connection of buffer spring in the outer wall of buffer board, the impartial distance fixedly connected with go-between of both sides outer wall of breast board, and the inner wall of a plurality of go-between that are located one side is pegged graft and is had same inserted bar.
As a further scheme of the invention: the equal fixedly connected with curb plate of both sides outer wall that the breast board is close to the bottom, and the top outer wall equidistance of two curb plates is opened there is the through-hole.
As a further scheme of the invention: the inner wall of each through hole is inserted with a pile body, and the top outer walls of the pile bodies on the same side plate are fixedly connected with the same connecting plate.
As a further scheme of the invention: the outer wall of one side of breast board fixedly connected with backup pad, and the top outer wall fixedly connected with dust collection box of backup pad, the top outer wall fixedly connected with dust catcher of dust collection box.
As a further scheme of the invention: the top outer wall fixedly connected with two fixed blocks of breast board, and the same trachea of the relative one side outer wall fixedly connected with of two fixed blocks, tracheal outer wall equidistance is opened has into dirt hole.
As a further scheme of the invention: the dust collection end of the dust collector is fixedly connected with a dust guide pipe, the dust guide pipe is fixedly connected to the inner wall of the air pipe, and the dust conveying end of the dust collector is connected to the inside of the dust collection box through a pipeline.
As a further scheme of the invention: the equal two spouts of fixedly connected with of both sides inner wall of dust collection box, and the inner wall sliding connection who is located two spouts of top has same filter screen, and the inner wall sliding connection who is located two spouts of below has same active carbon adsorption plate.
As a further scheme of the invention: the outer wall of the dust collection box is connected with a box door through a hinge, and an exhaust pipe is fixedly connected to the inner wall of the dust collection box close to the bottom end.
As a further scheme of the invention: the fence board is close to the equal fixedly connected with fixed plate of both sides outer wall of bottom, and two pneumatic cylinders of the equal fixedly connected with of bottom outer wall of two fixed plates, is located the same jack-up board of the bottom outer wall fixedly connected with of two pneumatic cylinders on same fixed plate.
Compared with the prior art, the invention has the beneficial effects that: by arranging the buffer plate and the buffer springs, in the process of earth excavation, if soil and stones impact on the buffer plate, the buffer springs behind the buffer plate reduce the impact force of the soil and the stones, so that the soil and the stones can fall along the guide grooves, the damage to the fence plate caused by the soil and the stones is reduced, meanwhile, the pedestrian injury caused by the soil and the stones falling outside the fence plate is prevented, and the use value and the safety of the enclosure device are improved; the air pipe, the dust collector and the dust collecting box are arranged, a large amount of dust is generated in the earth excavation process, the dust collector is started, and the dust is guided into the dust collecting box through the dust inlet hole in the air pipe by the dust collector, so that the environment pollution caused by the dust is prevented, and the environmental protection performance of the enclosure device is improved; through the arrangement of the chute, the filter screen and the activated carbon adsorption plate, after dust is guided into the dust collection box, gas carrying the dust is filtered through the filter screen and the activated carbon adsorption plate, so that the dust is treated, and the filter screen and the activated carbon adsorption plate are both connected to the inner wall of the chute in a sliding manner, so that the filter screen and the activated carbon adsorption plate can be conveniently replaced; when the breast board is fixed, the pile body below the connecting plate is driven into the ground through the pile driver, so that the breast board is convenient and efficient, and the convenience in mounting the breast board is improved; through being provided with fixed plate, pneumatic cylinder and jack-up board, when carrying out the dismantlement of breast board, drive jack-up board jack-up through adjusting the pneumatic cylinder to extract the pile body from the underground, improve the convenience that the breast board was dismantled.
Drawings
Fig. 1 is a schematic structural diagram of a barrier device for earth excavation in roadbed engineering construction.
Fig. 2 is a structural side view of a retaining device for earth excavation in roadbed engineering construction.
Fig. 3 is a schematic view of the internal structure of a dust box of the enclosure device for earth excavation in roadbed engineering construction.
Fig. 4 is a schematic structural view of an embodiment 2 of the enclosure device for earth excavation in roadbed engineering construction.
In the figure: 1 breast board, 2 curb plates, 3 connecting plates, 4 connecting rings, 5 inserted bars, 6 fixed blocks, 7 dust collectors, 8 dust guide pipes, 9 air pipes, 10 dust inlet holes, 11 buffer plates, 12 guide grooves, 13 pile bodies, 14 buffer springs, 15 dust collection boxes, 16 support plates, 17 box doors, 18 activated carbon adsorption plates, 19 exhaust pipes, 20 filter screens, 21 fixed plates, 22 hydraulic cylinders, 23 jacking plates and 24 chutes.
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.
In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1-4, in the embodiment of the invention, a barrier device for earth excavation in roadbed engineering construction includes a barrier plate 1, buffer plates 11 are connected to outer walls of one side of the barrier plate 1 at equal intervals through hinges, guide grooves 12 are formed in outer walls of tops of the buffer plates 11 at equal intervals, buffer springs 14 are fixedly connected to outer walls of one side of the barrier plate 1 below each buffer plate 11 at equal intervals, the buffer springs 14 are fixedly connected to outer walls of the buffer plates 11, connecting rings 4 are fixedly connected to outer walls of two sides of the barrier plate 1 at equal intervals, and the same inserted rod 5 is inserted into inner walls of the connecting rings 4 on one side.
In the invention, the outer walls of two sides of the breast board 1 close to the bottom end are both fixedly connected with the side boards 2, and the outer walls of the tops of the two side boards 2 are provided with through holes at equal distances.
In the invention, the inner wall of each through hole is inserted with a pile body 13, the outer walls of the tops of the pile bodies 13 on the same side plate 2 are fixedly connected with the same connecting plate 3, and when the breast board 1 is installed, the connecting plate 3 is impacted by a pile driver, so that the pile bodies 13 are driven into the ground, and the installation of the breast board 1 is completed.
According to the invention, the outer wall of one side of the breast board 1 is fixedly connected with the supporting plate 16, the outer wall of the top of the supporting plate 16 is fixedly connected with the dust collection box 15, the outer wall of the top of the dust collection box 15 is fixedly connected with the dust collector 7, the dust collector 7 is started, and the dust collector 7 guides dust into the dust collection box 15 through the dust inlet hole 10 on the air pipe 9, so that the environment pollution caused by the dust is prevented, and the environmental protection performance of the enclosure device is improved.
In the invention, two fixing blocks 6 are fixedly connected to the outer wall of the top of the breast board 1, the same air pipe 9 is fixedly connected to the outer wall of one side, opposite to the two fixing blocks 6, of the two fixing blocks, and dust inlet holes 10 are formed in the outer wall of the air pipe 9 at equal intervals.
In the invention, the dust collection end of the dust collector 7 is fixedly connected with the dust guide pipe 8, the dust guide pipe 8 is fixedly connected with the inner wall of the air pipe 9, and the dust conveying end of the dust collector 7 is connected with the inside of the dust collection box 15 through a pipeline.
In the invention, two chutes 24 are fixedly connected to inner walls of two sides of the dust collection box 15, the same filter screen 20 is slidably connected to inner walls of the two chutes 24 located above, the same activated carbon adsorption plate 18 is slidably connected to inner walls of the two chutes 24 located below, and after dust is guided into the dust collection box 15, gas carrying dust is filtered through the filter screen 20 and the activated carbon adsorption plate 18, so that the dust is treated, and the filter screen 20 and the activated carbon adsorption plate 18 are slidably connected to inner walls of the chutes 24, so that the filter screen 20 and the activated carbon adsorption plate 18 can be conveniently replaced.
In the invention, the outer wall of the dust collection box 15 is connected with a box door 17 through a hinge, and the inner wall of the dust collection box 15 close to the bottom end is fixedly connected with an exhaust pipe 19.
In the embodiment of the invention, when the breast board 1 is installed, the pile body 13 is driven into the ground by impacting the connecting plate 3 through the pile driver, the installation of the breast board 1 is completed, the dust collector 7 is started during the use of the breast board 1, the dust collector 7 guides dust into the dust collection box 15 through the dust inlet hole 10 on the air pipe 9, thereby preventing the dust from causing environmental pollution and improving the environmental protection performance of the enclosure device, meanwhile, after the dust is guided into the dust collection box 15, the dust-carrying gas is filtered through the filter screen 20 and the activated carbon adsorption plate 18, thereby treating the dust, the filter screen 20 and the activated carbon adsorption plate 18 are both connected with the inner wall of the chute 24 in a sliding way, thereby facilitating the replacement of the filter screen 20 and the activated carbon adsorption plate 18, and in the process of excavating earth, if soil and stone impact on the buffer plate 11, the buffer spring 14 behind the buffer plate 11 reduces the impact force of the soil and stone, the barrier device can fall down along the guide groove 12, the damage to the barrier plate 1 caused by the barrier device is reduced, meanwhile, the barrier device is prevented from falling on the outer side of the barrier plate 1 to cause injury to pedestrians, and the use value and the safety of the barrier device are improved.
As an embodiment of the invention, the outer walls of two sides of the breast board 1 near the bottom end are fixedly connected with fixing plates 21, the outer walls of the bottoms of the two fixing plates 21 are fixedly connected with two hydraulic cylinders 22, and the outer walls of the bottoms of the two hydraulic cylinders 22 on the same fixing plate 21 are fixedly connected with the same jacking plate 23.
In the embodiment of the invention, when the breast board 1 is disassembled, the jacking plate 23 is driven to jack up through the adjusting hydraulic cylinder 22, so that the pile body 13 is pulled out from the ground, the convenience of disassembling the breast board 1 is improved, and meanwhile, the labor input is reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides a road bed engineering construction earthwork excavation is with enclosing fender device, includes breast board (1), its characterized in that, there is buffer board (11) one side outer wall equidistance of breast board (1) through hinge connection, and the top outer wall equidistance of buffer board (11) opens there is guide way (12), breast board (1) is located one side outer wall equidistance fixedly connected with buffer spring (14) of every buffer board (11) below, and buffer spring (14) equal fixed connection in the outer wall of buffer board (11), the both sides outer wall equidistance fixedly connected with go-between (4) of breast board (1), and the inner wall that is located a plurality of go-between (4) of one side is pegged graft and is had same inserted bar (5).
2. The enclosure device for the earth excavation of the roadbed engineering construction is characterized in that side plates (2) are fixedly connected to the outer walls of two sides, close to the bottom end, of the breast board (1), and through holes are formed in the outer walls of the tops of the two side plates (2) at equal distances.
3. The enclosure device for the earth excavation of the roadbed engineering construction is characterized in that a pile body (13) is inserted into the inner wall of each through hole, and the top outer walls of the pile bodies (13) on the same side plate (2) are fixedly connected with the same connecting plate (3).
4. The enclosure device for the earth excavation of the roadbed engineering construction is characterized in that a supporting plate (16) is fixedly connected to the outer wall of one side of the breast board (1), a dust collection box (15) is fixedly connected to the outer wall of the top of the supporting plate (16), and a dust collector (7) is fixedly connected to the outer wall of the top of the dust collection box (15).
5. The enclosure device for the earth excavation of the roadbed engineering construction is characterized in that two fixing blocks (6) are fixedly connected to the outer wall of the top of the breast board (1), the same air pipe (9) is fixedly connected to the outer wall of one side, opposite to the two fixing blocks (6), of the two fixing blocks, and dust inlet holes (10) are formed in the outer wall of the air pipe (9) at equal intervals.
6. The enclosure device for the earth excavation of the roadbed engineering construction, according to claim 5, is characterized in that a dust suction end of the dust collector (7) is fixedly connected with a dust guide pipe (8), the dust guide pipe (8) is fixedly connected with the inner wall of the air pipe (9), and a dust conveying end of the dust collector (7) is connected with the inside of the dust collection box (15) through a pipeline.
7. The enclosure device for the earth excavation of the roadbed engineering construction is characterized in that two sliding grooves (24) are fixedly connected to the inner walls of two sides of the dust collection box (15), the inner walls of the two sliding grooves (24) positioned above are slidably connected with the same filter screen (20), and the inner walls of the two sliding grooves (24) positioned below are slidably connected with the same activated carbon adsorption plate (18).
8. The retaining device for the earth excavation of the roadbed engineering construction is characterized in that the outer wall of the dust collection box (15) is connected with a box door (17) through a hinge, and the inner wall of the dust collection box (15) close to the bottom end is fixedly connected with an exhaust pipe (19).
9. The retaining device for the earth excavation during the roadbed engineering construction according to claim 2, wherein the two side outer walls of the retaining plate (1) close to the bottom end are fixedly connected with fixing plates (21), the bottom outer walls of the two fixing plates (21) are fixedly connected with two hydraulic cylinders (22), and the bottom outer walls of the two hydraulic cylinders (22) on the same fixing plate (21) are fixedly connected with the same jacking plate (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011384292.5A CN112482255A (en) | 2020-12-02 | 2020-12-02 | Road bed engineering construction earthwork excavation is with enclosing fender device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011384292.5A CN112482255A (en) | 2020-12-02 | 2020-12-02 | Road bed engineering construction earthwork excavation is with enclosing fender device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112482255A true CN112482255A (en) | 2021-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011384292.5A Pending CN112482255A (en) | 2020-12-02 | 2020-12-02 | Road bed engineering construction earthwork excavation is with enclosing fender device |
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| CN (1) | CN112482255A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113699904A (en) * | 2021-05-21 | 2021-11-26 | 国网浙江省电力有限公司湖州供电公司 | Slope rolling stone anti-collision device |
| CN115637663A (en) * | 2022-10-10 | 2023-01-24 | 中国电建集团贵阳勘测设计研究院有限公司 | Karst mountain area landslide roadside protection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010126965A (en) * | 2008-11-27 | 2010-06-10 | Tokuso:Kk | Fence and construction method therefor |
| CN207538578U (en) * | 2017-12-06 | 2018-06-26 | 湛江市渔好生物科技有限公司 | A kind of agricultural anti-theft device |
| CN210178086U (en) * | 2019-06-11 | 2020-03-24 | 许昌水利建筑工程有限公司 | Construction site is with portable dust removal protector |
| CN211874093U (en) * | 2020-03-13 | 2020-11-06 | 申金磊 | Urban construction is with enclosing fender that can reduce dirt |
| CN212052812U (en) * | 2020-04-08 | 2020-12-01 | 保利新联爆破工程集团有限公司 | Rolling stone device for safety protection high slope blasting |
-
2020
- 2020-12-02 CN CN202011384292.5A patent/CN112482255A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010126965A (en) * | 2008-11-27 | 2010-06-10 | Tokuso:Kk | Fence and construction method therefor |
| CN207538578U (en) * | 2017-12-06 | 2018-06-26 | 湛江市渔好生物科技有限公司 | A kind of agricultural anti-theft device |
| CN210178086U (en) * | 2019-06-11 | 2020-03-24 | 许昌水利建筑工程有限公司 | Construction site is with portable dust removal protector |
| CN211874093U (en) * | 2020-03-13 | 2020-11-06 | 申金磊 | Urban construction is with enclosing fender that can reduce dirt |
| CN212052812U (en) * | 2020-04-08 | 2020-12-01 | 保利新联爆破工程集团有限公司 | Rolling stone device for safety protection high slope blasting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113699904A (en) * | 2021-05-21 | 2021-11-26 | 国网浙江省电力有限公司湖州供电公司 | Slope rolling stone anti-collision device |
| CN115637663A (en) * | 2022-10-10 | 2023-01-24 | 中国电建集团贵阳勘测设计研究院有限公司 | Karst mountain area landslide roadside protection device |
| CN115637663B (en) * | 2022-10-10 | 2024-05-28 | 中国电建集团贵阳勘测设计研究院有限公司 | Karst mountain area landslide roadside protection device |
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Application publication date: 20210312 |