CN107090791B - Mountain bridge pier rolling stone collision prevention device and construction method thereof - Google Patents
Mountain bridge pier rolling stone collision prevention device and construction method thereof Download PDFInfo
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- CN107090791B CN107090791B CN201710446258.8A CN201710446258A CN107090791B CN 107090791 B CN107090791 B CN 107090791B CN 201710446258 A CN201710446258 A CN 201710446258A CN 107090791 B CN107090791 B CN 107090791B
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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
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The invention discloses a mountain bridge pier rolling stone collision prevention device and a construction method thereof, wherein the mountain bridge pier rolling stone collision prevention device comprises bridge piers arranged on a bearing platform at one side of a mountain, three rows of bases which are distributed in an arrow shape are arranged on an inclined plane of the mountain, each base is provided with upright posts which are upwards vertically, the upright post rolling stone facing surfaces at two sides are provided with a plurality of connecting plates which are arranged at intervals from bottom to top, the tops of the upright posts at partial corresponding positions of the upright posts at two sides are provided with cross braces, and inclined braces are arranged between the middle upright post and the upright posts at the partial corresponding positions at two sides; the construction is completed through the steps of designing and manufacturing each component, pouring a base, installing an upright post, welding a connecting plate, welding a transverse strut, a diagonal strut, installing a wire netting and the like. The invention adopts the thought of 'easy dredging and difficult blocking', forces the rolling stone to change the motion trail away from the bridge pier, and the protection device cannot be impacted by too much energy, so that the overall stability is high.
Description
Technical field:
the invention relates to a protection technology of bridge piers, in particular to a rolling stone collision prevention device for a mountain area pier and a construction method thereof.
The background technology is as follows:
bridge piers are important parts and weak links in bridge engineering, and important protection is needed during traffic engineering operation. Bridges located in the high mountain canyon areas are often threatened by various geological disasters, including collapsed rolling stones, debris flows, etc., which may cause damage and destruction of the bridge pier.
The rolling stones are the process that after the individual stone blocks are instable from the surfaces of the side slope and the scarp for some reasons, the individual stone blocks finally reach a static state through the movement modes of falling, rebound, jumping, rolling or sliding, and the like, and when engineering facilities exist in the movement range of the rolling stones and a certain loss is caused, the rolling stones are formed. For example, 25 days of 7 months in 2009, the dangerous rock on the right bank of Min river at high position (fall of 500 m) collapses in large area, the total volume of the collapsed body exceeds 10000 cubic meters, and the giant rock rolls down along a steep slope to directly impact to thoroughly close the bridge 8 # Pier, make 8 # Bridge piers are broken instantly, so that the 8 th and 9 th cross-span Liang Tila beams with the total length of 60m are caused, the 10 th and 11 th cross-span beams slide 26cm in the direction of traction and showing, expansion joints at the 11 th bridge abutment are damaged, the rolling stone disaster causes death of 3 persons, 12 persons are injured, and 7 vehicles are damaged. It can be seen that it is necessary to develop a rolling stone impact resistant device for bridge piers.
Chinese patent grant publication No. CN103790124B discloses a flexible anti-falling stone collision device for bridge piers, which comprises a plurality of steel plates, anti-blocking blocks, front posts, rear posts, post anchoring devices, and a base, wherein the energy is consumed by deformation yielding of corrugated steel plates, and the corrugated steel plates can be partially replaced and repaired after being subjected to collision deformation. The limitations of this patent are: the device belongs to a method of 'frontal attack of enemy', the rolling stones in motion are forced to be finally changed into a static state, the protection device needs to bear very large impact energy, the size and the strength of the protection device are large enough, otherwise, the protection device is difficult to effectively block the attack of the rolling stones; under the attack of the rolling stones with larger mass and higher speed, the corrugated steel plate strip has limited protection capability and is easy to damage and needs to be replaced frequently; the rock-soil mass deposit in front of the base needs to be cleaned frequently, otherwise, the subsequent anti-collision function is affected.
The technical problems to be solved by the invention are as follows: the design of the mountain bridge pier rolling stone collision prevention device can effectively protect the bridge pier on one hand, and on the other hand, the structural design of the mountain bridge pier rolling stone collision prevention device adapts to the mechanical and energy transmission characteristics of rolling stone collision, so that the mountain bridge pier rolling stone collision prevention device is relatively small in impact energy, and the material size of the mountain bridge pier rolling stone collision prevention device is more economical and reasonable compared with a traditional design scheme.
The invention comprises the following steps:
in order to overcome the defects of the prior art, the invention aims to provide the rolling stone collision prevention device for the bridge pier in the mountain area and the construction method thereof, and the rolling stone collision prevention device has the advantages of simple structure and strong protection capability and provides a reliable protection device for the rolling stone collision prevention of the bridge pier in the mountain area.
The technical scheme of the invention is as follows:
the mountain bridge pier rolling stone collision preventing device is built on an inclined mountain body of a rolling stone facing surface beside a bridge pier to be protected, and is characterized in that three rows of bases distributed in an arrow shape are installed on the inclined face of the mountain body, vertical upright posts are installed on each base, the rolling stone facing surfaces of the upright posts on two sides are provided with a plurality of connecting plates arranged at intervals from bottom to top, cross braces are installed at the tops of the upright posts on the positions corresponding to part of the upright posts on the two sides, and inclined braces are arranged between the middle upright posts and the upright posts on the positions corresponding to the part of the two sides.
The mountain bridge pier rolling stone collision prevention device is characterized in that the connecting plates are strip-shaped steel plates, the strip-shaped steel plates are symmetrically welded on the rolling stone facing surfaces of the stand columns on the two sides, and the connecting plates are parallel to the ground surface of the inclined mountain.
The mountain bridge pier rolling stone collision prevention device is characterized in that a plane formed by the length and the thickness of the connecting plate is welded with the side face of the upright post.
The mountain bridge pier rolling stone collision prevention device is characterized in that the base is formed by pouring reinforced concrete, anchor bolts are uniformly and symmetrically embedded in the base, and the number and the positions of the anchor bolts are matched with those of bolt holes in the flange plate at the bottom end of the upright post.
The mountain bridge pier rolling stone collision prevention device is characterized in that an iron wire net is arranged on one side of the back rolling stone surface of each upright post on two sides.
The mountain bridge pier rolling stone collision prevention device is characterized in that the number of the transverse braces and the inclined braces is not less than two.
The mountain bridge pier rolling stone collision prevention device is characterized in that the included angle of connecting lines of two side bases of the three rows of bases distributed in an arrow shape is not more than 90 degrees.
A construction method of a mountain bridge pier rolling stone collision prevention device comprises the following steps:
1) Designing and manufacturing each component:
according to the position of the bridge pier to be protected and the attack direction of mountain rolling stones, the trend of two wings of the rolling stone collision prevention device and the specific positions of the bases are designed, the height of the upright posts and the lengths of the connecting plates, the cross braces and the diagonal braces are determined, and corresponding components are manufactured for site construction;
2) Pouring a base:
treating the foundation of each base on a steep mountain, excavating soil in the foundation burial depth range, then embedding the reinforcing steel bars, erecting templates, arranging reinforcing steel bars, embedding anchor bolts, and then pouring and maintaining the concrete of the base;
3) And (3) installing an upright post:
the bolt holes on the flange plates at the bottom ends of the stand columns are sleeved into the matched anchor bolts, and the anchor bolts are fixed by nuts, so that the stand columns are in a vertical state, and the installation work of the stand columns is completed;
4) Welding a connecting plate:
uniformly welding all the connecting plates on the facing roller surface of the upright post, and mutually welding a plane formed by the length and the thickness of the connecting plates and the side surface of the upright post;
5) Welding a cross brace and an inclined brace:
according to the design scheme, a plurality of cross braces and diagonal braces are arranged between the upright posts at the same positions of the two wings, so that the protection device forms a stable structural system;
6) And (3) installing a wire netting:
an iron wire net is arranged on one side of the back rolling stone surface of each upright post to bag and intercept broken stones and stone blocks with smaller volumes, so that the safety of bridge piers below the anti-rolling stone device is ensured; and performing rust prevention treatment on the surfaces of the upright posts, the connecting plates, the cross braces, the inclined braces, the wire meshes and the like, thus finishing the construction operation of the protective device.
Compared with the prior art, the invention has the following advantages:
1. the invention does not adopt the design method of 'facing enemy on the front face' but adopts the protection thought of 'being easy to dredge and not easy to block', forces the rolling stone to change the motion track away from the bridge pier instead of enabling the rolling stone to be in a static state, so that the protection device is not impacted by too much energy, and the purpose of protecting the bridge pier is achieved on the other hand, the material size of the protection device is not required to be too large, the used materials are relatively less, and the manufacturing cost is lower;
2. the arrow-shaped configuration arrangement of the invention maximizes the overall rigidity along the impact direction of the barren rock, adopts a plurality of cross braces and diagonal braces for reinforcement, and has high overall stability;
3. when the rolling stone collides with the device, the rolling stone is only contacted with the side surface of the connecting plate in the thickness direction, and the rigidity of the connecting plate in the direction is maximum and the contact area is minimum, so that the rolling stone is easy to break up and decompose, and the impact energy of the rolling stone is effectively dissolved and dispersed.
4. In the prior art, the upright post is in an inclined state, namely, the upright post is not in a plumb and vertical state, and the method leads to larger impact force and collision energy of the barreled rock and the protection device; the upright post is in a vertical state, namely the whole device is in the vertical state, and the collision energy and the collision force of the rolling stone and the lifted rolling stone prevention device are relatively small, so that the invention is beneficial to improving the overall stability of the device.
Description of the drawings:
fig. 1 is a schematic structural view of the rolling stone collision preventing device of the present invention.
Fig. 2 is a front view of the rolling stone collision preventing device of the present invention.
Fig. 3 is a top view of the rolling stone collision device of the present invention.
Fig. 4 is a top view of the rolling stone collision device of the present invention from the top of the mountain.
Fig. 5 is a bottom view of the rolling stone collision device of the present invention from the mountain bottom.
Fig. 6 is a three-dimensional schematic view of the rolling stone collision device of the present invention.
Fig. 7 is a schematic view of the connection between the base and the column according to the present invention.
Fig. 8 is a front view of the connection of the upright post and the connection plate of the present invention.
Fig. 9 is a three-dimensional schematic view of the connection of the upright post and the connection plate of the present invention.
Fig. 10 is a schematic view of the installation of the wire netting of the present invention.
Fig. 11 is a schematic diagram showing the construction of the base of the present invention.
FIG. 12 is a schematic diagram of the post installation of the present invention.
Fig. 13 is a schematic diagram of the connection board of the present invention after installation.
FIG. 14 is a schematic diagram of the cross-brace and cross-brace assembly of the present invention.
Fig. 15 is a schematic view of the present invention after installation of the wire.
Reference numerals illustrate: 1. Bearing platform; 2. bridge piers; 3. mountain body; 4. a base; 5. a column; 6. a cross brace; 7. a connecting plate; 8. diagonal bracing; 9. a wire netting; 10. a flange plate; 11. and (5) anchoring the bolt. The arrow direction in the figure is: the direction of attack of the rolling stones.
The specific embodiment is as follows:
referring to the drawings:
the rolling stone collision preventing device for the bridge pier in the mountain area comprises a base 4, upright posts 5, cross braces 6, connecting plates 7 and inclined braces 8, wherein a flange plate 10 at the bottom end of each upright post 5 is sleeved on an anchoring bolt 11 on the base 4 and is fixed by nuts, a plurality of rows of connecting plates 7 are welded on the facing rolling stone surface of each upright post 5, the rolling stone collision preventing device is symmetrically distributed in an arrow shape as a whole, and each upright post 5 is in a vertical and vertical state; a plurality of transverse struts 6 and diagonal struts 8 are arranged between the upright posts 5 on two symmetrical sides; when the barren rock comes, non-perpendicularity and inclined collision occur to the two sides, the movement track of the barren rock changes after collision, and the barren rock keeps moving downwards while avoiding the position of the pier to be protected, as shown in figure 1.
The invention is positioned on an inclined mountain 3 beside a to-be-protected pier 2, the to-be-protected pier 2 is positioned in the protection range of the raised rolling stone collision prevention device, and the whole is in a symmetrical structure, so that rolling stones slide from any direction of the mountain and cannot reach the position of the to-be-protected pier 2, as shown in figures 2-6.
Generally, the bearing of the bridge pier in the mountain area possibly suffering from the attack of the rolling stones can be comprehensively judged according to the topography and the topography, and finally, the potential direction of one or more rolling stone attacks can be determined; due to the shielding effect of the rolling stone collision device on the rolling stone, a protection area is formed behind the rolling stone collision device, and the pier to be protected 2 is positioned in the protection area.
The base 4 is formed by pouring reinforced concrete, anchor bolts 11 are uniformly and symmetrically embedded in the base 4, and the number and positions of the anchor bolts 11 are matched with the number and positions of bolt holes in the flange plate 10 at the bottom end of the upright post 5, as shown in fig. 7. The diameter of the bolt holes on the flange plate 10 is larger than the diameter of the embedded anchor bolts 11.
In order to improve the bearing capacity and stability of the base 4, the base 4 can be provided with a planted bar and an anchor rod, so that the base 4 and the mountain 3 are tightly connected. The bearing capacity and stability of the base 4 should meet the strength and stability requirements under the action of various combined loads under complex working conditions. Because the length of the diagonal brace 8 is relatively large, the base 4 needs to be separately set up for the diagonal brace 8, as shown in fig. 3 and 5.
The connecting plates 7 are welded on the facing surfaces of the upright posts 5, the connecting plates 7 are parallel to the ground surface of the inclined mountain, and the plane formed by the length and the thickness of the connecting plates 7 is welded with the side surfaces of the upright posts 5, as shown in fig. 8 and 9.
The elevation of each base 4 and the elevation of each upright post 5 are different due to the inclined surface of the mountain, but each base 4 and each upright post 5 are basically distributed in parallel with the surface of the mountain. The connection plate 7 is parallel to the inclined mountain surface, so that the integrity and symmetry of the protection device are optimal. The plane formed by the length and the thickness of the connecting plate 7 is welded with the side surface of the upright post 5, even if the side surface of the connecting plate 7 is welded with the upright post 5, the rolling stone is only contacted with the side surface of the connecting plate in the thickness direction, the rigidity of the connecting plate in the direction is maximum, and the contact area is minimum, so that the rolling stone is easy to break and decompose, and the impact energy of the rolling stone is effectively dissolved and dispersed.
Because the contact area between the side surface of the connecting plate 7 and the upright post 5 is smaller, a certain area needs to be dug out at the welding position of the connecting plate 7 to form an arc surface, so that the welding area between the connecting plate 7 and the upright post 5 is large, the overall strength is high, and the connecting plate 7 can bear the rolling stone impact with larger energy, as shown in fig. 9.
The anti-rolling stone collision device is symmetrically distributed in an arrow shape along the rolling stone attack direction, two wings incline to the downstream of the rolling stone attack direction, and a plurality of cross braces 6 and diagonal braces 8 are arranged between upright posts 5 at the same positions of the two wings, as shown in fig. 5 and 6. The arrow-shaped configuration arrangement maximizes the overall rigidity along the impact direction of the barren rock, and adopts a plurality of cross braces 6 and diagonal braces 8 for reinforcement, so that the overall stability is high.
The invention is distributed in an arrow shape, and the two wings incline towards the downstream of the attack direction of the rolling stone, so that the device does not collide with the rolling stone in the front direction, and the protection device only restrains and changes the direction of the rolling stone, so that the protection device is far away from the quasi-protection bridge pier 2 behind the device. After the rolling stone collides with the connecting plate 7 on the protection device which obliquely intersects with the movement direction, the movement direction of the rolling stone is changed, and the rolling stone continues to move downstream along the random direction avoiding the protection device. The protection device does not act to bring the rolling stone to a rest state, so that it is not subjected to great impact energy.
The wire netting 9 is installed in stand back of body rolling stone face one side, and it does not directly contact with the rolling stone in motion, but can hold up, intercept rubble, the stone block that the volume is less, ensures the safety of preventing rolling stone device below pier. The installation of the wire netting 9 is shown in fig. 10.
Preferably, the anti-rolling stone collision device is provided with at least two transverse struts 6.
Preferably, the anti-rolling stone collision device is provided with at least two inclined struts 8.
Preferably, the included angle between the two wings of the anti-rolling stone collision device is not larger than 90 degrees.
The construction method of the mountain bridge pier rolling stone collision prevention device is described in detail as follows:
1) Designing and manufacturing each component:
according to the position of the bridge pier to be protected and the attack direction of mountain rolling stones, the trend of two wings of the rolling stone collision prevention device and the specific positions of the bases 4 are designed, the height of the upright posts 5 and the lengths of the connecting plates 7, the cross braces 6 and the diagonal braces 8 are determined, and corresponding components are manufactured for site construction.
The spacing between the adjacent upright posts 5 should be reasonably designed so that the connecting plates 7 at all positions do not deform obviously under the action of the movement impact of the rolling stones under the complex working conditions. Other auxiliary measures can be added if necessary, so that the overall stability of the device is improved.
2) Pouring a base:
the foundation of each base 4 on the steep mountain 3 is processed, after soil mass within the foundation burial depth is excavated, the work of embedding the reinforcing bars is carried out, then templates are erected, the reinforcing bars are arranged, the anchor bolts 11 are embedded, and then the concrete pouring and maintenance of the base 4 are carried out, as shown in fig. 11.
The central positions of the anchor bolts 11 on the side bases 4 are on the same straight line, so that the side surfaces of the subsequently installed upright posts 5 are on the same straight line, and the connecting plate 7 and the upright posts 5 with two wings can be tightly welded into a whole. In order to improve the bearing capacity and stability of the base 4, the base 4 can be provided with a planted bar and an anchor rod, so that the base 4 and the mountain 3 are tightly connected.
3) And (3) installing an upright post:
the bolt holes on the flanges 10 at the bottom ends of the upright posts 5 are sleeved into the matched anchor bolts 11 and are fixed by nuts, so that the installation work of the upright posts is completed, as shown in fig. 12.
After the upright posts 5 are installed, the vertical central axes of the side upright posts 5 are on the same plane.
4) Welding a connecting plate:
the connection plates 7 are uniformly welded on the facing side of the upright post 5, and the plane formed by the length and thickness of the connection plates 7 and the side surface of the upright post 5 are welded with each other, as shown in fig. 13.
The connection plates 7 are distributed in parallel, and the distance between every two adjacent connection plates 7 is equal and should not be too large. The side of the connecting plate 7 is impacted by the rolling stones, so that the rigidity of the connecting plate 7 is the greatest and the impact resistance is the strongest.
5) Welding a cross brace and an inclined brace:
according to the design scheme, a plurality of transverse struts 6 and diagonal struts 8 are arranged between the upright posts 5 at the same positions of the two wings, so that the protection device forms a stable structural system, as shown in fig. 14.
The cross braces 6 and the diagonal braces 8 enable a plurality of triangular stabilizing systems to be formed inside the device, so that the overall stability is effectively maintained, and the rolling stone impact resistance is improved.
6) And (3) installing a wire netting:
and an iron wire net 9 is arranged on one side of the back rolling stone surface of each upright post 5 to bag and intercept broken stones and stone blocks with smaller volumes, so that the safety of the bridge pier below the anti-rolling stone device is ensured, as shown in fig. 15. And performing rust prevention treatment on the surfaces of the upright posts, the connecting plates, the cross braces, the inclined braces, the wire meshes and the like, thus finishing the construction operation of the protective device.
The wire netting 9 is mounted on the back-rolling stone surface of each upright 5, and is not directly impacted by the rolling stones, so that the strength of the wire netting is not required to be too high.
The present invention is not limited to the above-described embodiments, and according to the above-described matters, the present invention may be modified, replaced or altered in various equivalent ways without departing from the basic technical spirit of the present invention, all of which fall within the scope of the present invention, according to the general technical knowledge and conventional means in the art.
Claims (6)
1. The construction method of the mountain bridge pier rolling stone collision prevention device is characterized in that the mountain bridge pier rolling stone collision prevention device is built on an inclined mountain body of a rolling stone facing surface beside a bridge pier to be protected, three rows of bases distributed in an arrow shape are installed on the inclined face of the mountain body, vertical upright posts are installed on each base, a plurality of connecting plates are arranged on the rolling stone facing surfaces of the upright posts on two sides from bottom to top at intervals, cross braces are installed on the tops of the upright posts on the positions corresponding to part of the upright posts on two sides, and inclined braces are arranged between the upright posts on the positions corresponding to the middle upright post and the two side parts;
the connecting plates are strip-shaped steel plates, the strip-shaped steel plates are symmetrically welded on the facing roller surfaces of the upright posts on the two sides, and the connecting plates are parallel to the ground surface of the inclined mountain;
the construction method of the mountain bridge pier rolling stone collision prevention device comprises the following steps:
1) Designing and manufacturing each component: according to the position of the bridge pier to be protected and the attack direction of mountain rolling stones, the trend of two wings of the rolling stone collision prevention device and the specific positions of the bases are designed, the height of the upright posts and the lengths of the connecting plates, the cross braces and the diagonal braces are determined, and corresponding components are manufactured for site construction;
2) Pouring a base: treating the foundation of each base on a steep mountain, excavating soil in the foundation burial depth range, then embedding the reinforcing steel bars, erecting templates, arranging reinforcing steel bars, embedding anchor bolts, and then pouring and maintaining the concrete of the base;
3) And (3) installing an upright post: the bolt holes on the flange plates at the bottom ends of the stand columns are sleeved into the matched anchor bolts, and the anchor bolts are fixed by nuts, so that the stand columns are in a vertical state, and the installation work of the stand columns is completed;
4) Welding a connecting plate: uniformly welding all the connecting plates on the facing roller surface of the upright post, and mutually welding a plane formed by the length and the thickness of the connecting plates and the side surface of the upright post;
5) Welding a cross brace and an inclined brace: according to the design scheme, a plurality of cross braces and diagonal braces are arranged between the upright posts at the same positions of the two wings, so that the protection device forms a stable structural system;
6) And (3) installing a wire netting: an iron wire net is arranged on one side of the back rolling stone surface of each upright post to bag and intercept broken stones and stone blocks with smaller volumes, so that the safety of bridge piers below the anti-rolling stone device is ensured; and performing rust prevention treatment on the surfaces of the upright posts, the connecting plates, the cross braces, the inclined braces, the wire meshes and the like, thus finishing the construction operation of the protective device.
2. The construction method of the mountain bridge pier rolling stone collision preventing device according to claim 1, wherein the plane formed by the length and the thickness of the connecting plate is welded with the side surface of the upright post.
3. The construction method of the rolling stone collision prevention device for the bridge pier in the mountain area according to claim 1, wherein the base is formed by pouring reinforced concrete, anchor bolts are uniformly and symmetrically embedded in the base, and the number and the positions of the anchor bolts are matched with the number and the positions of the bolt holes on the flange plate at the bottom end of the upright post.
4. The construction method of the mountain bridge pier rolling stone collision prevention device according to claim 1, wherein the wire netting is arranged on one side of the back rolling stone surface of each upright post on the two sides.
5. The construction method of the mountain bridge pier rolling stone collision prevention device according to claim 1, wherein the number of the transverse braces and the inclined braces is not less than two.
6. The construction method of the mountain bridge pier rolling stone collision prevention device according to claim 1, wherein the included angle of connecting lines of two side bases of the three rows of bases distributed in an arrow shape is not more than 90 degrees.
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| CN201710446258.8A CN107090791B (en) | 2017-06-14 | 2017-06-14 | Mountain bridge pier rolling stone collision prevention device and construction method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107905130A (en) * | 2017-10-26 | 2018-04-13 | 合肥学院 | A kind of anti-Rolling Stone percussion mechanism of bridge pier based on waste and old Container Reconstruction |
| CN108330871B (en) * | 2018-02-09 | 2020-07-17 | 重庆交通大学 | Design method of debris flow channel bridge pier protection device |
| CN109137847B (en) * | 2018-09-14 | 2023-08-29 | 四川省交通勘察设计研究院有限公司 | Mud-rock flow water-stone separation grid dam and water-stone separation system |
| CN111809537B (en) * | 2020-07-22 | 2021-12-07 | 中国科学院、水利部成都山地灾害与环境研究所 | Design method of collapse landslide blocking energy dissipation pile array |
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| EP1596009A1 (en) * | 2004-05-12 | 2005-11-16 | Yincheng Hou | A novel protective work for vessel impact on bridge piers |
| CN102787563A (en) * | 2012-09-02 | 2012-11-21 | 中铁二院工程集团有限责任公司 | Dangerous-rock and rockfall preventing structure of high-steep side slope bridge connected section |
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