CN110468749B - Protection device for preventing rolling stone and debris flow impact of mountain pier - Google Patents
Protection device for preventing rolling stone and debris flow impact of mountain pier Download PDFInfo
- Publication number
- CN110468749B CN110468749B CN201910812558.2A CN201910812558A CN110468749B CN 110468749 B CN110468749 B CN 110468749B CN 201910812558 A CN201910812558 A CN 201910812558A CN 110468749 B CN110468749 B CN 110468749B
- Authority
- CN
- China
- Prior art keywords
- impact
- plate
- fixedly connected
- pier
- proof
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the field of pier protection devices, in particular to a protection device for preventing rolling stones and debris flow impact of a mountain pier, which comprises an impact-proof plate, wherein a splitter plate is fixedly connected to the outer surface of the impact-proof plate, an arc splitter block is arranged in the middle of the impact-proof plate, a plurality of damping springs are fixedly connected to the inner surface of the impact-proof plate, a plurality of protection plates are fixedly connected to the tail end of the impact-proof plate, and an impact-proof inner plate is fixedly connected to one end, far away from the impact-proof plate, of each damping spring. The invention has the advantages that: reach the purpose that changes the stone roll movement track through damping spring, protecting against shock board and protecting against shock inner panel, when hillside rock roll falls down, partly stone roll striking protecting against shock board, protecting against shock board bears the stone roll striking, and damping spring will roll the stone and bounce off, changes its movement track, reaches the effect of protecting against rolling the stone, and damping spring will roll stone impact force homodisperse, makes protecting against shock board wholly bear the impact force, and a certain point on the non-protecting against shock board.
Description
Technical Field
The invention relates to a pier protection device, in particular to a protection device for preventing rolling stones and debris flow impact of a mountain pier.
Background
The bridge piers are key parts and weak links in bridge engineering, need key protection during traffic engineering operation, the bridge in the high mountain valley area is often threatened by various geological disasters, including collapse rock rolling, debris flow and the like, which may cause damage and destruction of the bridge piers, the rock rolling refers to the process that individual rock blocks are unstable from the surface of a side slope and a cliff due to some reason and finally reach a static state through falling, rebounding, jumping, rolling or sliding and other movement modes, when engineering facilities exist in the motion range of the rock rolling and certain loss is caused, the rock rolling disaster is formed, the debris flow refers to rock rolling threatening the bridge piers in mountains or other gullies and deep ravines and areas with severe terrains, because landslides caused by rainstorm, snowstorm or other natural disasters carry a large amount of silt and special flood of stones, can change its motion trail and keep away from the pier, thereby reach the effect of protection pier, force the rubble to change the motion trail and keep away from the pier, and need not make it become quiescent condition, protector neither can receive too big energy impact like this, the pier has effectively been protected again, thereby reach and reduce the engineering volume, reduce the purpose of cost, and at this in-process, if the rubble strength is too big, can cause the impact to protector, lead to the protector harm, in addition, the threat of mud-rock flow still need be considered to the bridge engineering pier in mountain area, in some special districts, if the pier receives the potential threat of the rubble of equidirectional rubble and mud-rock flow simultaneously, protector need possess the resist function of these two kinds of geological disasters simultaneously, consequently, provide a protection device that mountain area pier rolling stone and mud-rock flow impact are prevented.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a protection device for preventing rolling stones and debris flow impact of a pier in a mountainous area.
The purpose of the invention is realized by the following technical scheme: a protection device for preventing rolling stones and debris flow impact of a pier in a mountain area comprises an impact-proof plate, wherein a splitter plate is fixedly connected to the outer surface of the impact-proof plate, an arc splitter block is arranged in the middle of the impact-proof plate, a plurality of damping springs are fixedly connected to the inner surface of the impact-proof plate, a plurality of protection plates are fixedly connected to the tail end of the impact-proof plate, an impact-proof inner plate is fixedly connected to one end, away from the impact-proof plate, of each damping spring, a support frame is fixedly connected to one side, away from each damping spring, of each impact-proof inner plate, a plurality of base shafts are fixedly connected to the bottom of each impact-proof inner plate, one end, away from each impact-proof inner plate, of each support frame is fixedly connected to a pier base, a plurality of bolts are fixedly connected to the outer surface of each pier base, a pier is arranged at the top of each pier base, and an anti-collision base is fixedly connected to the outer surface of each bolt, the top fixedly connected with of anticollision base a plurality of anticollision pieces, the one end fixedly connected with top platform that anticollision piece kept away from the anticollision base.
Optionally, the outer surface of the splitter plate is a step-shaped sloping table, the heights of the sloping tables on the outer surface of the splitter plate are different, and the size of the splitter plate is equal to that of the impact-resistant plate.
Optionally, the inner part of the arc shunting block is fixedly connected with a damping spring, and the arc shunting block is fixedly connected with the impact-proof plate.
Optionally, damping spring array fixed connection is in the inside of protecting against shock board and protecting against shock inner panel, and is a plurality of damping spring's specification is unanimous.
Optionally, the inside packing of guard plate and protecting against shock inner panel has buffer material, and is a plurality of the quantity of guard plate is two, two the specification of guard plate is unanimous, two guard plate fixed connection is at the both ends of protecting against shock board.
Optionally, the base shaft is far away from the one end of protecting against shock inner panel and is inserted inside soil, can pour the concrete piece between the base shaft.
Optionally, the number of the bolts is four, the specifications of the bolts are consistent, and the anti-collision base is fixedly connected with the pier base through the bolts.
Optionally, the cross sections of the plurality of anti-collision blocks are parallelograms, the bottom of each anti-collision block is provided with a cylindrical shaft, and the anti-collision blocks are fixedly connected to the anti-collision base and the top platform in an inserting mode.
Optionally, a circular hole is formed in the middle of the top platform, and the area of the circular hole is larger than that of the bridge pier.
The invention has the following advantages:
1. this protection device that stone and mud-rock flow impact are prevented to mountain area pier, through damping spring, protecting against shock board and protecting against shock inner panel reach the purpose that changes the stone roll movement track, when the mountain slope stone roll falls down, partly stone roll striking protecting against shock board, protecting against shock board bears the stone roll striking, it bounces to roll the stone through damping spring, change its movement track, reach the effect of stone roll, damping spring can roll stone impact force homodisperse in addition, make protecting against shock board wholly bear the impact force, and a certain point on the non-protecting against shock board, protection device's durability has been increased, the inside packing of protection plate and protecting against shock inner panel has buffer material in addition, can offset the impact force of the little stone roll in side, make its protection device more firm.
2. This protection device that stone and mud-rock flow strikeed is prevented rolling by mountain area pier, divide the stream of mud-rock flow to divide through the circular arc reposition of redundant personnel piece, make protection device wholly play the reposition of redundant personnel effect, the impact force that the device receives has been reduced, reach the effect of better protection pier, the flow distribution plate surface is the echelonment sloping platform in addition, each sloping platform height of surface of flow distribution plate is inequality, the reposition of redundant personnel effect has been played, the impact force of mud-rock flow has further been reduced, the bottom fixedly connected with base axle of protecting against shock inner panel in addition, the base axle can be pour inside the concrete block, make the integrated device keep firm.
3. This protection device that stone and mud-rock flow impact are prevented to mountain area pier, through bolt fixed connection between crashproof base and the pier base, the inside fixedly connected with anticollision piece of anticollision base, when falling the stone that rolls leaps and when crossing the protecting against shock board down, anticollision piece then is responsible for keeping off the stone that rolls down, the stone that rolls harm is avoided to protection pier that can be more comprehensive, in addition, anticollision piece can be dismantled, be convenient for change, when receiving serious harm, can change anticollision piece again, needn't wholly change protection device, it is more economical and convenient to use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic structural view of a pier foundation anticollision mechanism of the present invention;
FIG. 4 is a schematic view of the internal structure of the impact plate of the present invention;
FIG. 5 is a top view of the internal structure of the impact shield of the present invention;
fig. 6 is a schematic diagram of a splitter plate structure according to the present invention.
In the figure: 1-impact-resistant plate, 2-flow distribution plate, 3-arc flow distribution block, 4-damping spring, 5-protective plate, 6-impact-resistant inner plate, 7-support frame, 8-base shaft, 9-pier base, 10-bolt, 11-pier, 12-anti-collision base, 13-anti-collision block and 14-top platform.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.
As shown in FIGS. 1-6, a protection device for preventing rolling stones and debris flow impact of a mountain pier comprises an impact-proof plate 1, a splitter plate 2 fixedly connected to the outer surface of the impact-proof plate 1, an arc splitter block 3 arranged in the middle of the impact-proof plate 1, a plurality of damping springs 4 fixedly connected to the inner surface of the impact-proof plate 1, a plurality of protection plates 5 fixedly connected to the end of the impact-proof plate 1, an impact-proof inner plate 6 fixedly connected to the end of the damping springs 4 far away from the impact-proof plate 1, a support frame 7 fixedly connected to the side of the impact-proof inner plate 6 far away from the damping springs 4, a plurality of base shafts 8 fixedly connected to the bottom of the impact-proof inner plate 6, a plurality of bolts 10 fixedly connected to the end of the support frame 7 far away from the impact-proof inner plate 6, a pier base 9 fixedly connected to the outer surface of the pier base 9, a pier 11 arranged on the top of the pier base 9, and an impact-proof base 12 fixedly connected to the outer surface of the bolts 10, the top of the anti-collision base 12 is fixedly connected with a plurality of anti-collision blocks 13, and one end of each anti-collision block 13 far away from the anti-collision base 12 is fixedly connected with a top platform 14.
As a preferred technical scheme of the invention, the outer surface of a splitter plate 2 is a step-shaped sloping platform, the heights of the sloping platforms on the outer surface of the splitter plate 2 are different, the size of the splitter plate 2 is equal to that of an impact-proof plate 1, a damping spring 4 is fixedly connected inside an arc splitter block 3, the arc splitter block 3 is fixedly connected with the impact-proof plate 1, an array of the damping springs 4 is fixedly connected inside the impact-proof plate 1 and an impact-proof inner plate 6, the specifications of a plurality of the damping springs 4 are consistent, the interiors of a plurality of the protective plates 5 and the impact-proof inner plate 6 are filled with a buffer material, the number of the plurality of the protective plates 5 is two, the specifications of two protective plates 5 are consistent, the two protective plates 5 are fixedly connected at two ends of the impact-proof plate 1, one end of a base shaft 8 far away from the impact-proof inner plate 6 is inserted into soil, a concrete block can be poured between the base shafts 8, the number of a plurality of four bolts 10 is four, the specifications of four bolts 10 are consistent, the anti-collision base 12 is fixedly connected with the pier base 9 through the bolts 10, the cross sections of the anti-collision blocks 13 are parallelograms, the bottom of each anti-collision block 13 is provided with a cylindrical shaft, the anti-collision blocks 13 are fixedly connected with the anti-collision base 12 and the top platform 14 in an inserting mode, the middle of the top platform 14 is provided with a circular hole, and the area of the circular hole is larger than that of the pier 11.
The working process of the invention is as follows: through damping spring 4, protecting against shock board 1 and protecting against shock inner panel 6 reach the purpose that changes the rock fall trajectory, when the hillside rock fall, some rock fall striking protecting against shock board 1, protecting against shock board 1 bears the rock fall striking, rock fall is bounced off through damping spring 4, change its trajectory of motion, the impact force of the little rock fall in the side is offset by the inside buffer material of guard plate 5 and protecting against shock inner panel 6, circular arc reposition of redundant personnel piece 3 is with the mud stone current reposition of redundant personnel, anticollision piece 13 then is responsible for will fly over and under the rock fall fender of protecting against shock board 1.
To sum up, the protection device for preventing the impact of the rolling stones and the debris flow of the pier in the mountainous area achieves the purpose of changing the movement track of the rolling stones through the damping spring 4, the impact-proof plate 1 and the impact-proof inner plate 6, when the rolling stones fall down on the mountainous area, a part of the rolling stones impact the impact-proof plate 1, the impact-proof plate 1 bears the impact of the rolling stones, the rolling stones are bounced off through the damping spring 4 to change the movement track of the rolling stones, and the effect of the rolling stones is achieved, in addition, the damping spring 4 can uniformly disperse the impact force of the rolling stones, so that the impact-proof plate 1 integrally bears the impact force, but not a certain point on the impact-proof plate 1, the durability of the protection device is increased, in addition, the inside of the protection plate 5 and the impact-proof inner plate 6 is filled with a buffer material, the impact force of the small rolling stones on the side surface can be offset, the protection device is more stable, the debris flow is divided through the circular arc splitter block 3, so that the protection device integrally plays a dividing role, the impact force borne by the device is reduced, the function of better protecting piers is achieved, in addition, the outer surface of the splitter plate 2 is a step-shaped sloping platform, the heights of the sloping platforms on the outer surface of the splitter plate 2 are different, the splitting effect is achieved, the impact force of debris flow is further reduced, in addition, a base shaft 8 is fixedly connected to the bottom of the anti-impact inner plate 6, the base shaft 8 can be poured inside a concrete block, the whole device is kept stable, the anti-impact base 12 and the pier base 9 are fixedly connected through bolts 10, an anti-impact block 13 is fixedly connected inside the anti-impact base 12, when falling rocks jump over the anti-impact plate 1, the anti-impact block 13 is responsible for blocking the rocks down, the piers can be more comprehensively protected from being damaged by the rocks, in addition, the anti-impact block 13 can be detached and is convenient to replace, when serious damage is received, the anti-impact block 13 can be replaced again, the protection device does not need to be integrally replaced, the use is more economical and convenient.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a protection device that stone and mud-rock flow impact are prevented to mountain area pier which characterized in that: comprises an impact-proof plate (1), a splitter plate (2) is fixedly connected to the outer surface of the impact-proof plate (1), an arc splitter block (3) is arranged at the middle part of the impact-proof plate (1), a plurality of damping springs (4) are fixedly connected to the inner surface of the impact-proof plate (1), a plurality of protection plates (5) are fixedly connected to the tail end of the impact-proof plate (1), an impact-proof inner plate (6) is fixedly connected to one end, away from the impact-proof plate (1), of the damping springs (4), a support frame (7) is fixedly connected to one side, away from the damping springs (4), of the impact-proof inner plate (6), a plurality of base shafts (8) are fixedly connected to the bottom of the impact-proof inner plate (6), one end, away from the impact-proof inner plate (6), of the base shaft (8) is inserted into soil, a concrete block is poured between the base shafts (8), one end, away from the impact-proof inner plate (6), of the support frame (7) is fixedly connected to a pier base (9), the outer surface of the pier base (9) is fixedly connected with a plurality of bolts (10), the top of the pier base (9) is provided with a pier (11), the outer surface of each bolt (10) is fixedly connected with an anti-collision base (12), the top of each anti-collision base (12) is fixedly connected with a plurality of anti-collision blocks (13), and one ends, far away from the anti-collision bases (12), of the anti-collision blocks (13) are fixedly connected with a top platform (14);
the utility model discloses a safety protection plate, including protection plate (5) and protecting against shock inner panel (6), the inside packing of protection plate (5) and protecting against shock inner panel (6) has buffer material, and is a plurality of the quantity of protection plate (5) is two, two the specification of protection plate (5) is unanimous, two protection plate (5) fixed connection is at the both ends of protecting against shock board (1).
2. The mountain area pier rolling stone and debris flow impact prevention protection device according to claim 1, wherein: the outer surface of the flow distribution plate (2) is a step-shaped sloping platform, the heights of the sloping platforms on the outer surface of the flow distribution plate (2) are different, and the size of the flow distribution plate (2) is equal to that of the impact prevention plate (1).
3. The mountain area pier rolling stone and debris flow impact prevention protection device according to claim 1, wherein: the shock absorption device is characterized in that the inner part of the arc shunting block (3) is fixedly connected with a shock absorption spring (4), and the arc shunting block (3) is fixedly connected with the impact prevention plate (1).
4. The mountain area pier rolling stone and debris flow impact prevention protection device according to claim 1, wherein: damping spring (4) array fixed connection is in the inside of protecting against shock board (1) and protecting against shock inner panel (6), and is a plurality of damping spring (4)'s specification is unanimous.
5. The mountain area pier rolling stone and debris flow impact prevention protection device according to claim 1, wherein: the number of the bolts (10) is four, the specifications of the four bolts (10) are consistent, and the anti-collision base (12) is fixedly connected with the pier base (9) through the bolts (10).
6. The mountain area pier rolling stone and debris flow impact prevention protection device according to claim 1, wherein: the cross section of each anti-collision block (13) is parallelogram, a cylindrical shaft is arranged at the bottom of each anti-collision block (13), and the anti-collision blocks (13) are fixedly connected to the anti-collision base (12) and the top platform (14) in an inserting connection mode.
7. The mountain area pier rolling stone and debris flow impact prevention protection device according to claim 1, wherein: the middle part of the top platform (14) is provided with a round hole, and the area of the round hole is larger than that of the pier (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910812558.2A CN110468749B (en) | 2019-08-30 | 2019-08-30 | Protection device for preventing rolling stone and debris flow impact of mountain pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910812558.2A CN110468749B (en) | 2019-08-30 | 2019-08-30 | Protection device for preventing rolling stone and debris flow impact of mountain pier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110468749A CN110468749A (en) | 2019-11-19 |
| CN110468749B true CN110468749B (en) | 2021-11-23 |
Family
ID=68514471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910812558.2A Active CN110468749B (en) | 2019-08-30 | 2019-08-30 | Protection device for preventing rolling stone and debris flow impact of mountain pier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110468749B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111155421A (en) * | 2020-01-09 | 2020-05-15 | 三峡大学 | Pier rolling stone impact prevention device and method for monitoring rolling stone impact |
| CN112442995A (en) * | 2020-11-03 | 2021-03-05 | 杭州中艺生态环境工程有限公司 | Ecological greening fixing device for rocky abrupt slope |
| CN112382057B (en) * | 2020-11-03 | 2022-03-11 | 四川轻化工大学 | Automatic monitoring and alarming device for debris flow |
| CN112482866A (en) * | 2020-12-02 | 2021-03-12 | 国网新疆电力有限公司物资公司 | Electric power pole anti-collision device |
| CN112853945B (en) * | 2021-03-12 | 2022-08-19 | 潘英杰 | Composite pier scour prevention construction method |
| CN114561885B (en) * | 2022-03-14 | 2023-09-08 | 新疆大学 | Protection device for preventing bridge pier in mountain area from being impacted by rolling stones and debris flow |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330871A (en) * | 2018-02-09 | 2018-07-27 | 重庆交通大学 | Debris flow gully road bridge pier protective device and design method |
| CN207919448U (en) * | 2017-06-14 | 2018-09-28 | 合肥学院 | A kind of anti-Rolling Stone crash device of mountain area bridge pier |
| CN108708336A (en) * | 2018-06-17 | 2018-10-26 | 沈阳建筑大学 | A kind of spring cushion anti-collision bridge abutment |
| CN208668251U (en) * | 2017-11-28 | 2019-03-29 | 合肥学院 | A kind of protective device of mountain area bridge pier anti-Rolling Stone and mud-rock-flow-impact |
| CN109853432A (en) * | 2019-03-01 | 2019-06-07 | 广州大学 | Pile-column anticollision device of pier |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208717866U (en) * | 2018-09-06 | 2019-04-09 | 新疆维吾尔自治区交通规划勘察设计研究院 | Mud-rock flow area pier anticollision structure |
-
2019
- 2019-08-30 CN CN201910812558.2A patent/CN110468749B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207919448U (en) * | 2017-06-14 | 2018-09-28 | 合肥学院 | A kind of anti-Rolling Stone crash device of mountain area bridge pier |
| CN208668251U (en) * | 2017-11-28 | 2019-03-29 | 合肥学院 | A kind of protective device of mountain area bridge pier anti-Rolling Stone and mud-rock-flow-impact |
| CN108330871A (en) * | 2018-02-09 | 2018-07-27 | 重庆交通大学 | Debris flow gully road bridge pier protective device and design method |
| CN108708336A (en) * | 2018-06-17 | 2018-10-26 | 沈阳建筑大学 | A kind of spring cushion anti-collision bridge abutment |
| CN109853432A (en) * | 2019-03-01 | 2019-06-07 | 广州大学 | Pile-column anticollision device of pier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110468749A (en) | 2019-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110468749B (en) | Protection device for preventing rolling stone and debris flow impact of mountain pier | |
| US4643271A (en) | Sound barrier | |
| CN104594230B (en) | Rockfall quick draining structure for mountain highway protection | |
| CN110939078A (en) | Combined structure for resisting high-energy rockfall of abrupt slope | |
| CN107090791B (en) | Mountain bridge pier rolling stone collision prevention device and construction method thereof | |
| CN209339096U (en) | A kind of safeguard structure of modified hydraulic and hydroelectric engineering side slope | |
| CN108534620A (en) | A kind of mine blasting protective fence convenient for splicing | |
| CN210766456U (en) | Road side slope rockfall combined protection structure | |
| CN208668251U (en) | A kind of protective device of mountain area bridge pier anti-Rolling Stone and mud-rock-flow-impact | |
| WO1995023267A1 (en) | Apparatus for protecting structures, constructions and the like against earthquakes | |
| CN207919448U (en) | A kind of anti-Rolling Stone crash device of mountain area bridge pier | |
| CN213836357U (en) | Highway construction is with interception buffer structure of prevention massif rockfall | |
| CN209082335U (en) | A kind of municipal administration Collison fence for bridge | |
| CN116837715A (en) | Root planting pile pier platform bottom protection facility | |
| JP3165940B2 (en) | Pillar protection device for rock fall prevention fence | |
| CN211368450U (en) | Combined structure for resisting high-energy rockfall of abrupt slope | |
| CN112064651B (en) | Collapse rock cushion energy dissipation protection device and construction method thereof | |
| CN108755604A (en) | Gravity counter support mud-rock flow porotective wall and its construction method | |
| CN209538199U (en) | Slope protecting device is used in a kind of construction of ground | |
| CN209128865U (en) | A kind of combined bridge designs a model | |
| CN208088159U (en) | A kind of protection avalanche interception equipment of roadbed | |
| CN111088806A (en) | Environment-friendly road side slope landslide prevention device | |
| CN220377082U (en) | Prevent falling stone impact device and landing stage | |
| CN220150346U (en) | Slope protection device in slope construction | |
| CN212002562U (en) | Prevent mud-rock flow building house structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |