CN114197351B - A highway concrete guardrail heightening and reinforcement structure and method thereof - Google Patents
A highway concrete guardrail heightening and reinforcement structure and method thereof Download PDFInfo
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- CN114197351B CN114197351B CN202210048208.5A CN202210048208A CN114197351B CN 114197351 B CN114197351 B CN 114197351B CN 202210048208 A CN202210048208 A CN 202210048208A CN 114197351 B CN114197351 B CN 114197351B
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- guardrail
- heightening
- hole
- hollow steel
- steel pipe
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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
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
-
- 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
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0461—Supports, e.g. posts
- E01F15/0469—Covers, e.g. of ground surface around the foot
-
- 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
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0476—Foundations
-
- 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
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0484—Installing; Repairing; Adjusting
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
本发明公开了一种公路混凝土护栏加高加固结构及其方法，该结构设置连通护栏、护栏基础及路肩的钻孔，在钻孔内设有空心钢管，在护栏上端设有预制混凝土加高件，在预制混凝土加高件上设有与空心钢管上端对接的预留孔，在预制混凝土加高件上设有压浆孔，所述压浆孔与预留孔连通，在钻孔和空心钢管之间的空隙及空心钢管内均设有泥浆填充层，在护栏与预制混凝土加高件之间设有侧连接结构；本发明能加高的同时还能对旧的混凝土护栏进行加固，同时，便于操作和节省改造时间。
The invention discloses a highway concrete guardrail heightening and reinforcement structure and a method thereof. The structure is provided with a drill hole connecting the guardrail, the guardrail foundation and the shoulder, a hollow steel pipe is arranged in the drill hole, a precast concrete heightening part is arranged at the upper end of the guardrail, a reserved hole connected to the upper end of the hollow steel pipe is arranged on the precast concrete heightening part, a grouting hole is arranged on the precast concrete heightening part, the grouting hole is connected with the reserved hole, a mud filling layer is arranged in the gap between the drill hole and the hollow steel pipe and in the hollow steel pipe, and a side connection structure is arranged between the guardrail and the precast concrete heightening part. The invention can heighten and reinforce the old concrete guardrail at the same time, and is easy to operate and saves reconstruction time.
Description
Technical Field
The invention relates to a highway concrete guardrail heightening and reinforcing structure and a highway concrete guardrail heightening and reinforcing method, and belongs to the technical field of concrete guardrail heightening and reinforcing.
Background
At present, the improvement of the highway concrete guardrail is generally divided into two improvement methods of demolishing reconstruction and heightening reuse, wherein the two improvement methods not only can increase the improvement cost and waste resources, but also can cause roadbed damage when demolishing the foundation of guardrail excavation. The latter heightening and recycling technology mainly adopts modes of adding upper metal components or chiseling part of concrete to plant tendons to pour concrete to increase the overall height of the guardrail, and the like. In addition, the prior art generally adopts a cast-in-situ scheme, the construction period is long, the traffic influence is large, and the maintenance and management work are greatly influenced.
Stability and substrate carrying capacity of the concrete guardrail foundation are important factors affecting the overall protective performance of the concrete guardrail. However, in the existing road operation process, the problems of subsidence, looseness, bearing capacity reduction and the like of road shoulders are difficult to avoid, the bearing capacity of a substrate is improved during reinforcement, heightening and recycling, the integrity of a wall body and a foundation is enhanced, the construction time is shortened as much as possible in consideration of the specificity of maintenance projects, and traffic interference caused by construction is reduced.
Namely, a highway concrete guardrail heightening and reinforcing structure and a highway concrete guardrail heightening and reinforcing method are needed, the old concrete guardrail can be reinforced while heightening is achieved, and meanwhile, the operation is convenient and the reconstruction time is saved.
Disclosure of Invention
In view of the above, the invention aims to provide a highway concrete guardrail heightening and reinforcing structure and a highway concrete guardrail heightening and reinforcing method, which can heighten and simultaneously reinforce the old concrete guardrail, are convenient to operate and save the reconstruction time, and can overcome the defects of the prior art.
The invention aims at realizing the following technical scheme:
The invention discloses a highway concrete guardrail heightening and reinforcing structure and a method thereof, the structure comprises a drill hole communicated with a guardrail, a guardrail foundation and a road shoulder, a hollow steel pipe is arranged in the drill hole, a precast concrete heightening part is arranged at the upper end of the guardrail, a preformed hole which is in butt joint with the upper end of the hollow steel pipe is arranged on the precast concrete heightening part, a grouting hole is arranged on the precast concrete heightening part, the grouting hole is communicated with the preformed hole, a slurry filling layer is arranged in a gap between the drill hole and the hollow steel pipe and in the hollow steel pipe, and a side connecting structure is arranged between the guardrail and the precast concrete heightening part.
The side connecting structure is a connecting plate arranged between the guardrail and the precast concrete heightening piece, an anchor hole I is formed in the connecting plate, the guardrail and the precast concrete heightening piece, and an anchor bolt I is arranged in the anchor hole.
The hollow steel pipe is provided with the screw hole, the guardrail and the precast concrete heightening piece are provided with the anchor hole II corresponding to the screw hole, and the guardrail and the precast concrete heightening piece are connected with the hollow steel pipe through the anchor bolt II.
The grouting holes are positioned on the side wall of the precast concrete heightening piece.
According to the method, a drill hole penetrating through a guardrail foundation and penetrating into a road shoulder is drilled on an existing guardrail, a precast concrete heightening part is arranged on the guardrail, a reserved hole which is mutually butted with the drill hole is formed in the precast concrete heightening part, a hollow steel pipe for connection is arranged in the drill hole and the reserved hole, and then a slurry filling layer is filled in a gap between the drill hole and the hollow steel pipe and in the hollow steel pipe so as to realize heightening and reinforcing.
The highway concrete guardrail heightening and reinforcing method comprises the specific steps of 1, drilling an existing guardrail, enabling the drilled hole to penetrate through a guardrail foundation and penetrate through a road shoulder, arranging a hollow steel tube in the drilled hole, 2, abutting the upper end of the hollow steel tube through a reserved hole in a precast concrete heightening piece, 3, grouting through a grouting hole in the precast concrete heightening piece, filling slurry into a gap between the drilled hole and the hollow steel tube and into the hollow steel tube, and 4, laterally reinforcing the guardrail and the precast concrete heightening piece.
The beneficial effects of the invention are as follows:
1. Through opening holes on the existing guardrail and the upper opening hole and penetrating through the road shoulder, and implanting an external leakage hollow steel pipe in the hole of the guardrail for connecting an upper end precast concrete heightening piece, connecting a hole and a hollow steel pipe which are connected after the external leakage hollow steel pipe are filled with concrete, so that the old concrete guardrail can be reinforced while heightening, and meanwhile, the operation is convenient and the transformation time is saved.
2. Advanced reinforcement promotes the theory, solves the problem that current reinforcement scheme does not consider guardrail foundation reinforcement and bearing capacity, through setting up and link up little steel pipe and secondary slip casting, forms combined type basis, reinforcing concrete guardrail wall body and the wholeness of basis and reinforcement road bed curb, provides new thinking and new method for concrete guardrail promotes barrier property.
3. The concrete guardrail has the advantages of wide application range, adjustable size of the concrete heightening piece, realization of requirements on heightening height and shape of the old concrete guardrail, realization of reasonable utilization of the structural materials of the original guardrail, and maximum conservation and maintenance cost saving.
4. The rapid assembly shortens the operation time, and particularly, the prefabricated components are adopted for assembly molding on site in advance, so that the construction time is effectively shortened, and the traffic interference caused by construction is reduced.
5. Through the form of pouring again of drilling installation hollow steel pipe, can reduce the injury to old concrete guardrail, can realize the reinforcement to old guardrail again.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of a three-dimensional connection structure of the present invention.
Fig. 2 is a schematic diagram of the connection structure of the hollow steel pipes of the present invention.
Wherein, guardrail 1, guardrail basis 2, curb 3, hollow steel pipe 4, preformed hole 5, mud jacking hole 6, mud filling layer 7, side connection structure 8, crab-bolt I9, precast concrete increases 10.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
As shown in figures 1-2, a highway concrete guardrail heightening and reinforcing structure and a highway concrete guardrail heightening and reinforcing method structurally reform on the basis of the existing guardrail, a guardrail foundation 2 and a road shoulder 3, and the highway concrete guardrail heightening and reinforcing structure is operated in a mode that a drilling machine is adopted to drill holes from the top of a communicated guardrail 1, the drilled holes penetrate through the communicated guardrail 1 to the guardrail foundation 2, the hole diameter is generally 8-12cm according to the size of the upper end face of the communicated guardrail 1, hollow steel pipes 4 are inserted into the drilled holes, and the upper ends of the hollow steel pipes 4 are required to leak out of the upper ends of the communicated guardrail 1, specifically according to the heightening height. The prefabricated concrete heightening part 10 is prefabricated in advance, a preformed hole 5 which is in butt joint with the upper end of the hollow steel pipe 4 is formed in the prefabricated concrete heightening part 10, a grouting hole 6 is formed in the prefabricated concrete heightening part 10, the grouting hole 6 is communicated with the preformed hole 5, and the grouting hole 6 is located on the side wall of the prefabricated concrete heightening part 10. The prefabricated concrete heightening part 10 is butted above the communicating guardrail 1, concrete is poured into the gap between the drilling hole and the hollow steel pipe 4 by utilizing the grouting holes 6to form a slurry filling layer 7, the poured slurry is favorable for connecting the hollow steel pipe 4, the guardrail 1 and the prefabricated concrete heightening part 10 into a whole, in order to facilitate construction, the hollow steel pipe 4 can be directly poured into the drilling hole by installing the hollow steel pipe 4 and the guardrail 1, and finally, the hollow steel pipe 4 and the prefabricated concrete heightening part 10 are connected by grouting through the grouting holes 6.
Be equipped with side connection structure 8 between guardrail 1 and precast concrete heightening element 10, side connection structure 8 is the connecting plate that is equipped with between guardrail 1 and precast concrete heightening element 10, is equipped with anchor eye I on connecting plate, guardrail 1 and precast concrete heightening element 10, is equipped with crab-bolt I9 on the anchor eye, and side connection structure 8 is when the installation, distributes along guardrail 1 length direction and arranges, can further fix guardrail 1 and precast concrete heightening element 10 through side connection structure 8.
Screw holes are formed in the hollow steel pipe 4, anchor holes II corresponding to the screw holes are formed in the guardrail 1 and the precast concrete heightening piece 10, and the guardrail 1 and the precast concrete heightening piece 10 are connected with the hollow steel pipe 4 through the anchor bolts II.
According to the method, a drilling hole penetrating through a guardrail foundation 2 and penetrating into a road shoulder is drilled on an existing guardrail 1, a precast concrete heightening part 10 is arranged on the guardrail 1, a reserved hole 5 which is in butt joint with the drilling hole is arranged on the precast concrete heightening part 10, a hollow steel pipe 4 for connection is arranged in the drilling hole and the reserved hole 5, and then a slurry filling layer 7 is filled in a gap between the drilling hole and the hollow steel pipe 4 and in the hollow steel pipe 4 so as to realize heightening and reinforcing.
During construction, the specific construction steps are as follows:
The method comprises the steps of 1, drilling the existing guardrail 1, penetrating through a guardrail foundation 2 and penetrating into a road shoulder, arranging a hollow steel pipe 4 in the drilled hole, 2, abutting the upper end of the hollow steel pipe 4 through a reserved hole 5 on a precast concrete heightening part 10, 3, grouting through a grouting hole 6 on the precast concrete heightening part 10, filling slurry into a gap between the drilled hole and the hollow steel pipe 4 and into the hollow steel pipe 4, and 4, laterally reinforcing the guardrail and the precast concrete heightening part 10.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent variations and modification made to the above embodiment according to the technical matter of the present invention without departing from the technical scope of the present invention still fall within the scope of the technical scheme of the present invention.
Claims (4)
1. The highway concrete guardrail heightening and reinforcing structure is characterized by comprising a drill hole communicated with a guardrail (1), a guardrail foundation (2) and a road shoulder (3), wherein a hollow steel pipe (4) is arranged in the drill hole, a precast concrete heightening part (10) is arranged at the upper end of the guardrail (1), a preformed hole (5) which is in butt joint with the upper end of the hollow steel pipe (4) is arranged on the precast concrete heightening part (10), a grouting hole (6) is arranged on the precast concrete heightening part (10), the grouting hole (6) is communicated with the preformed hole (5), a slurry filling layer (7) is arranged in a gap between the drill hole and the hollow steel pipe (4) and in the hollow steel pipe (4), and a side connecting structure (8) is arranged between the guardrail (1) and the precast concrete heightening part (10);
The side connecting structure (8) is a connecting plate arranged between the guardrail (1) and the precast concrete heightening piece (10), anchor holes I are formed in the connecting plate, the guardrail (1) and the precast concrete heightening piece (10), and anchor bolts I (9) are formed in the anchor holes I;
The hollow steel pipe (4) is provided with a threaded hole, the guardrail (1) and the precast concrete heightening piece (10) are provided with anchor holes II corresponding to the threaded hole, and the guardrail (1) and the precast concrete heightening piece (10) are connected with the hollow steel pipe (4) through the anchor bolts II.
2. The highway concrete guardrail heightening and reinforcing structure according to claim 1, wherein the grouting holes (6) are positioned on the side wall of the precast concrete heightening piece (10).
3. A heightening and reinforcing method for a highway concrete guardrail heightening and reinforcing structure according to any one of claims 1 or 2 is characterized in that a prefabricated concrete heightening member (10) is arranged on a guardrail (1) by drilling a drilling hole penetrating through a guardrail foundation (2) and penetrating into a road shoulder (3) on an existing guardrail (1), a reserved hole (5) which is mutually butted with the drilling hole is arranged on the prefabricated concrete heightening member (10), a hollow steel pipe (4) for connection is arranged in the drilling hole and the reserved hole (5), and a slurry filling layer (7) is filled in a gap between the drilling hole and the hollow steel pipe (4) and in the hollow steel pipe (4) so as to realize heightening and reinforcing.
4. The method for heightening and reinforcing the heightening and reinforcing structure of the highway concrete guardrail according to claim 3, which is characterized by comprising the following specific steps:
step 1, drilling the existing guardrail (1), wherein the drill holes penetrate through the guardrail foundation (2) to penetrate into the road shoulder (3), and hollow steel pipes (4) are arranged in the drill holes;
step 2, butting the upper end of the hollow steel pipe (4) through a preformed hole (5) on the precast concrete heightening piece (10);
grouting through grouting holes (6) on the precast concrete heightening piece (10), and filling slurry into gaps between the drill holes and the hollow steel pipes (4) and into the hollow steel pipes (4);
And 4, laterally reinforcing the guardrail (1) and the precast concrete heightening piece (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210048208.5A CN114197351B (en) | 2022-01-17 | 2022-01-17 | A highway concrete guardrail heightening and reinforcement structure and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210048208.5A CN114197351B (en) | 2022-01-17 | 2022-01-17 | A highway concrete guardrail heightening and reinforcement structure and method thereof |
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| Publication Number | Publication Date |
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| CN114197351A CN114197351A (en) | 2022-03-18 |
| CN114197351B true CN114197351B (en) | 2025-05-27 |
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| CN202210048208.5A Active CN114197351B (en) | 2022-01-17 | 2022-01-17 | A highway concrete guardrail heightening and reinforcement structure and method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934468A (en) * | 2022-03-28 | 2022-08-23 | 中国五冶集团有限公司 | Rubble retaining wall anti-collision railing structure and construction method |
| CN115992495B (en) * | 2022-12-20 | 2025-05-30 | 济南城建集团有限公司 | Secondary reconstruction concrete guardrail structure and construction method for heightening guardrail structure |
| CN116025220A (en) * | 2023-01-05 | 2023-04-28 | 湖南省高速公路集团有限公司 | A kind of prefabricated concrete block of wall type guardrail and its installation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120056991A (en) * | 2010-11-26 | 2012-06-05 | 박병준 | Reinforced post for guard rail and height lengthening method thereof |
| CN107964874A (en) * | 2017-11-28 | 2018-04-27 | 济南德翼建设工程有限公司 | A kind of assembly concrete guardrail construction method |
| CN216712849U (en) * | 2022-01-17 | 2022-06-10 | 贵州省交通规划勘察设计研究院股份有限公司 | Highway concrete guardrail heightening and reinforcing structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153311B (en) * | 2014-08-19 | 2016-08-24 | 崔洪军 | A kind of highway barrier bracing means and reinforcement means thereof |
| CN106498881B (en) * | 2016-12-26 | 2018-09-18 | 河南省交通规划设计研究院股份有限公司 | Highway corrugated guardrail Promotion Transformation method |
| KR101854087B1 (en) * | 2017-09-29 | 2018-06-08 | 이승철 | Height Extension Method of Concrete Guardrail |
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2022
- 2022-01-17 CN CN202210048208.5A patent/CN114197351B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120056991A (en) * | 2010-11-26 | 2012-06-05 | 박병준 | Reinforced post for guard rail and height lengthening method thereof |
| CN107964874A (en) * | 2017-11-28 | 2018-04-27 | 济南德翼建设工程有限公司 | A kind of assembly concrete guardrail construction method |
| CN216712849U (en) * | 2022-01-17 | 2022-06-10 | 贵州省交通规划勘察设计研究院股份有限公司 | Highway concrete guardrail heightening and reinforcing structure |
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| CN114197351A (en) | 2022-03-18 |
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