CN114197351A - Highway concrete guardrail heightening and reinforcing structure and method thereof - Google Patents
Highway concrete guardrail heightening and reinforcing structure and method thereof Download PDFInfo
- Publication number
- CN114197351A CN114197351A CN202210048208.5A CN202210048208A CN114197351A CN 114197351 A CN114197351 A CN 114197351A CN 202210048208 A CN202210048208 A CN 202210048208A CN 114197351 A CN114197351 A CN 114197351A
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- guardrail
- hole
- heightening
- precast concrete
- steel pipe
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- 239000004567 concrete Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 16
- 239000011178 precast concrete Substances 0.000 claims abstract description 51
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 46
- 239000010959 steel Substances 0.000 claims abstract description 46
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 238000005553 drilling Methods 0.000 claims description 10
- 239000011440 grout Substances 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims 1
- 230000009466 transformation Effects 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- 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
The invention discloses a highway concrete guardrail heightening and reinforcing structure and a method thereof, wherein the structure is provided with a drill hole for communicating a guardrail, a guardrail foundation and a road shoulder, a hollow steel pipe is arranged in the drill hole, a precast concrete heightening piece is arranged at the upper end of the guardrail, a preformed hole butted with the upper end of the hollow steel pipe is arranged on the precast concrete heightening piece, a grouting hole is arranged on the precast concrete heightening piece and communicated with the preformed hole, a slurry filling layer is respectively 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 piece; the concrete guardrail heightening device can heighten and reinforce the old concrete guardrail, and is convenient to operate and saves the transformation time.
Description
Technical Field
The invention relates to a heightening and reinforcing structure and method for a concrete guardrail of a road, and belongs to the technical field of heightening and reinforcing of concrete guardrails.
Background
At present, the reconstruction of the concrete guardrail of the highway is generally divided into two reconstruction methods of demolishing and rebuilding and heightening for recycling, the two reconstruction methods can not only increase the reconstruction cost and waste of resources, but also can cause damage to a roadbed when a foundation is excavated by demolishing the guardrail. The latter heightening and recycling technology mainly adopts the modes of additionally arranging an upper metal member or chiseling partial concrete embedded bars to pour concrete to increase the overall height of the guardrail and the like, and the scheme only considers the reinforcement treatment on the concrete guardrail wall body and does not consider the reinforcement on the concrete guardrail foundation and the overall stability of the wall body and the foundation. In addition, the prior art generally adopts a cast-in-place scheme, so that the construction period is long, the traffic influence is large, and the maintenance and management work are greatly influenced.
The stability and the base bearing capacity of the concrete guardrail foundation are important factors influencing the overall protection performance of the concrete guardrail. However, in the existing highway operation process, the problems of sinking, loosening, reduction of bearing capacity and the like of the road shoulder are difficult to avoid, the bearing capacity of the base is improved during reinforcement, heightening and recycling, the integrity of the wall body and the foundation is enhanced, and in consideration of the specificity of maintenance projects, the construction time needs to be shortened as much as possible, and the traffic interference caused by construction is reduced.
Namely: there is a need for a highway concrete guardrail heightening and reinforcing structure and a method thereof, which can heighten and reinforce an old concrete guardrail, and is convenient to operate and saves reconstruction time.
Disclosure of Invention
In view of the above, the present invention aims to provide a highway concrete guardrail heightening and reinforcing structure and a method thereof, which can heighten and reinforce an old concrete guardrail, and at the same time, is convenient to operate and saves modification time; the defects of the prior art can be overcome.
The purpose of the invention is realized by the following technical scheme:
the invention discloses a highway concrete guardrail heightening and reinforcing structure and a method thereof, wherein the structure comprises a drill hole for communicating a guardrail, a guardrail foundation and a road shoulder, a hollow steel pipe is arranged in the drill hole, a precast concrete heightening piece is arranged at the upper end of the guardrail, a preformed hole butted with the upper end of the hollow steel pipe is arranged on the precast concrete heightening piece, a grouting hole is arranged on the precast concrete heightening piece and communicated with the preformed hole, a slurry filling layer is respectively 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 piece.
Above-mentioned side connection structure is for heightening the connecting plate that is equipped with between the piece at guardrail and precast concrete, heightens and is equipped with anchor eye I on connecting plate, guardrail and precast concrete, is equipped with crab-bolt I on the anchor eye.
Be equipped with the screw on foretell hollow steel pipe, be equipped with on guardrail and precast concrete increase and be equipped with the anchor eye II corresponding with the screw hole, guardrail and precast concrete increase and be connected with hollow steel pipe through crab-bolt II.
The grouting holes are formed in the side wall of the precast concrete heightening piece.
The method comprises the steps of drilling a drill hole which penetrates through a guardrail foundation and penetrates into a road shoulder on the existing guardrail, arranging a precast concrete heightening piece on the guardrail, arranging a preformed hole which is butted with the drill hole on the precast concrete heightening piece, arranging a hollow steel pipe for connection in the drill hole and the preformed hole, and filling a slurry filling layer in a gap between the drill hole and the hollow steel pipe so as to realize heightening and reinforcement.
The method for heightening and reinforcing the concrete guardrail of the highway comprises the following specific steps: step 1: drilling a hole in the existing guardrail, wherein the drilled hole penetrates through the guardrail foundation and extends into a road shoulder, and a hollow steel pipe is arranged in the drilled hole; step 2: the prefabricated concrete heightening piece is butted with the upper end of the hollow steel pipe through a preformed hole on the prefabricated concrete heightening piece; and step 3: grouting is carried out through a grouting hole in the precast concrete heightening piece, and slurry is filled in a gap between the drilling hole and the hollow steel pipe; and 4, step 4: and carrying out side reinforcement on the guardrail and the precast concrete heightening piece.
The invention has the beneficial effects that:
1. through at current guardrail and go up the trompil and link up to the curb to leak hollow steel pipe and be used for connecting upper end precast concrete and increase the piece outside its downthehole implantation, the hole and the hollow steel pipe concrete pouring of reconnecting after connecting can also consolidate old concrete guardrail like this when increasing, simultaneously, be convenient for operate and save the transformation time.
2. The method has the advantages that the reinforcement and the bearing capacity of the guardrail foundation are not considered in the current reinforcement scheme, the composite foundation is formed by arranging the through small steel pipes and performing secondary grouting, the integrity of the concrete guardrail wall body and the foundation is enhanced, the roadbed and the road shoulder are reinforced, and a new idea and a new method are provided for improving the protective performance of the concrete guardrail.
3. The concrete heightening device has wide application range, can adjust the size of the concrete heightening piece, meets the requirements on the heightening height and the shape of the old concrete guardrail, realizes the reasonable utilization of the original guardrail structure material, and saves the maintenance cost to the maximum extent.
4. The rapid assembling shortens the operation time, and specifically, the prefabricated components are adopted, the prefabricated on-site assembling and forming are performed in advance, so that the construction time is effectively shortened, and the traffic interference caused by construction is reduced.
5. Through the form of drilling installation hollow steel pipe and pouring again, can reduce the injury to old concrete guardrail, can realize again the reinforcement to old guardrail.
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 objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
fig. 1 is a schematic perspective view of the present invention.
FIG. 2 is a schematic view showing a connection structure of hollow steel pipes according to the present invention.
The concrete-filled guardrail comprises a guardrail 1, a guardrail foundation 2, a road shoulder 3, a hollow steel pipe 4, a preformed hole 5, a mud jacking hole 6, a mud filling layer 7, a side connecting structure 8, an anchor bolt I9 and a precast concrete heightening part 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 illustrative of the invention only and are not limiting upon the scope of the invention.
As shown in figures 1-2, the highway concrete guardrail heightening and reinforcing structure and the method thereof structurally reconstruct the existing guardrail, a guardrail foundation 2 and a road shoulder 3, the operation mode is to adopt a drilling machine to drill a hole from the top of a communicated guardrail 1 to the guardrail foundation 2 after the hole penetrates through the communicated guardrail 1, the hole diameter is determined according to the size of the upper end face of the communicated guardrail 1 and is generally 8-12cm, a hollow steel pipe 4 is inserted into the hole, and the upper end of the inserted hollow steel pipe 4 is required to leak out of the upper end of the communicated guardrail 1 by 5-30cm and is specifically determined according to the heightening height. Precast concrete heightening part 10 is prefabricated in advance, a preformed hole 5 which is butted 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, and the grouting hole 6 is positioned on the side wall of the precast concrete heightening part 10. The precast concrete heightening piece 10 is butted above the communicated guardrail 1, concrete is poured into a gap between the drilled hole and the hollow steel pipe 4 through the grout pressing hole 6 to form a grout filling layer 7, the hollow steel pipe 4, the guardrail 1 and the precast concrete heightening piece 10 are connected into a whole through the poured grout, the hollow steel pipe 4 can be installed in the drilled hole to directly pour the hollow steel pipe 4 and the guardrail 1, and finally the hollow steel pipe 4 and the precast concrete heightening piece 10 are connected through the grout pressing hole 6.
Increase between 10 at guardrail 1 and precast concrete and be equipped with side connection structure 8, side connection structure 8 is for increasing the connecting plate that is equipped with between 10 at guardrail 1 and precast concrete, increases to be equipped with anchor eye I on connecting plate, guardrail 1 and precast concrete and increases and be equipped with anchor bolt I9 on the anchor eye, and side connection structure 8 when the installation, along 1 length direction distribution of guardrail, can further increase guardrail 1 and precast concrete through side connection structure 8 and fix 10.
Be equipped with the screw on hollow steel pipe 4, be equipped with on guardrail 1 and precast concrete heighten 10 with the corresponding anchor eye II of screw hole, guardrail 1 and precast concrete heighten 10 are connected with hollow steel pipe 4 through crab-bolt II.
According to the method, a drill hole which penetrates through a guardrail foundation 2 and goes deep into a road shoulder is drilled on an existing guardrail 1, a precast concrete heightening piece 10 is arranged on the guardrail 1, a preformed hole 5 which is mutually butted with the drill hole is formed in the precast concrete heightening piece 10, a hollow steel pipe 4 for connection is arranged in the drill hole and the preformed hole 5, and a slurry filling layer 7 is filled in a gap between the drill hole and the hollow steel pipe 4 so as to achieve heightening and reinforcing.
During construction, the concrete construction steps are as follows:
step 1: drilling a hole in the existing guardrail 1, wherein the hole penetrates through the guardrail foundation 2 and goes deep into a road shoulder, and a hollow steel pipe 4 is arranged in the hole; step 2: the upper end of the hollow steel pipe 4 is butted with a preformed hole 5 on the precast concrete heightening piece 10; and step 3: grouting is carried out through the grouting holes 6 in the precast concrete heightening pieces 10, and slurry is filled in the gaps between the drilled holes and the hollow steel pipes 4; and 4, step 4: the guard rail and the precast concrete heightening member 10 are laterally reinforced.
The above 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 change and modification made to the above embodiment according to the technical spirit of the present invention without departing from the technical spirit of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides a highway concrete guardrail increases reinforced structure which characterized in that: it is including the drilling that communicates guardrail (1), guardrail basis (2) and curb (3), is equipped with hollow steel pipe (4) in drilling, is equipped with precast concrete and increases piece (10) in guardrail (1) upper end, increases on piece (10) at precast concrete and is equipped with preformed hole (5) with hollow steel pipe (4) upper end butt joint, increases and is equipped with mud jacking hole (6) on piece (10) at precast concrete, mud jacking hole (6) and preformed hole (5) intercommunication all are equipped with mud filling layer (7) in space between drilling and hollow steel pipe (4), are equipped with side connection structure (8) between guardrail (1) and precast concrete increase piece (10).
2. The heightening and reinforcing structure for a road concrete guardrail according to claim 1, wherein: the side connecting structure (8) is a connecting plate arranged between the guardrail (1) and the precast concrete heightening piece (10), an anchor hole I is arranged on the connecting plate, the guardrail (1) and the precast concrete heightening piece (10), and an anchor bolt I (9) is arranged on the anchor hole.
3. The heightening and reinforcing structure for a road concrete guardrail according to claim 1, wherein: be equipped with the screw on hollow steel pipe (4), be equipped with on guardrail (1) and precast concrete increase piece (10) with the corresponding anchor eye II of screw hole, guardrail (1) and precast concrete increase piece (10) and are connected with hollow steel pipe (4) through crab-bolt II.
4. The heightening and reinforcing structure for a road concrete guardrail according to claim 1, wherein: the grout pressing hole (6) is positioned on the side wall of the precast concrete heightening piece (10).
5. A method for heightening and reinforcing a road concrete guardrail is characterized in that a drill hole which penetrates through a guardrail foundation (2) and goes deep into a road shoulder is drilled on an existing guardrail (1), a precast concrete heightening piece (10) is arranged on the guardrail (1), a preformed hole (5) which is mutually butted with the drill hole is formed in the precast concrete heightening piece (10), a hollow steel pipe (4) for connection is arranged in the drill hole and the preformed hole (5), and a slurry filling layer (7) is filled in a gap between the drill hole and the hollow steel pipe (4) so as to heighten and reinforce.
6. The method for heightening and reinforcing a road concrete guardrail according to claim 5, comprising the following specific steps:
step 1: drilling a hole in the existing guardrail (1), wherein the hole penetrates through a guardrail foundation (2) and goes deep into a road shoulder, and a hollow steel pipe (4) is arranged in the hole;
step 2: the upper end of the hollow steel pipe (4) is butted with a preformed hole (5) on the precast concrete heightening piece (10);
and step 3: grouting is carried out through a grouting hole (6) in the precast concrete heightening piece (10), and slurry is filled in a gap between the drilled hole and the hollow steel pipe (4);
and 4, step 4: the guardrail and the precast concrete heightening member (10) are laterally reinforced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210048208.5A CN114197351A (en) | 2022-01-17 | 2022-01-17 | Highway concrete guardrail heightening and reinforcing structure and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210048208.5A CN114197351A (en) | 2022-01-17 | 2022-01-17 | Highway concrete guardrail heightening and reinforcing structure and method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114197351A true CN114197351A (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210048208.5A Pending CN114197351A (en) | 2022-01-17 | 2022-01-17 | Highway concrete guardrail heightening and reinforcing structure and method thereof |
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| Country | Link |
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| CN (1) | CN114197351A (en) |
Cited By (1)
| 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 |
Citations (6)
| 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 |
| CN104153311A (en) * | 2014-08-19 | 2014-11-19 | 崔洪军 | Road guardrail reinforcing device and reinforcing method thereof |
| CN106498881A (en) * | 2016-12-26 | 2017-03-15 | 河南省交通规划设计研究院股份有限公司 | Highway corrugated guardrail Promotion Transformation method |
| 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 |
| KR101854087B1 (en) * | 2017-09-29 | 2018-06-08 | 이승철 | Height Extension Method of Concrete Guardrail |
| 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 |
-
2022
- 2022-01-17 CN CN202210048208.5A patent/CN114197351A/en active Pending
Patent Citations (6)
| 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 |
| CN104153311A (en) * | 2014-08-19 | 2014-11-19 | 崔洪军 | Road guardrail reinforcing device and reinforcing method thereof |
| CN106498881A (en) * | 2016-12-26 | 2017-03-15 | 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 |
| 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 |
Cited By (1)
| 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 |
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