CN214497034U - New and old road bed mosaic structure of road widening - Google Patents
New and old road bed mosaic structure of road widening Download PDFInfo
- Publication number
- CN214497034U CN214497034U CN202023041908.7U CN202023041908U CN214497034U CN 214497034 U CN214497034 U CN 214497034U CN 202023041908 U CN202023041908 U CN 202023041908U CN 214497034 U CN214497034 U CN 214497034U
- Authority
- CN
- China
- Prior art keywords
- new
- old
- roadbed
- road
- fixed
- 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
Landscapes
- Road Paving Structures (AREA)
Abstract
The application relates to a splicing structure of a new roadbed and an old roadbed for widening a road, which relates to the field of road paving technology and comprises the old roadbed and the new roadbed, wherein a multi-stage step structure is arranged on the splicing surface of the old roadbed and the new roadbed; a plurality of first inserted rods are embedded in the old roadbed along the width direction; a plurality of second inserted rods are embedded in the new roadbed along the width direction; a reinforcing steel bar is connected between the first inserted link and the second inserted link; a first fixed steel bar is connected between the position of the second inserted bar close to the bottom and the correspondingly arranged step structure; and a second fixing steel bar is fixed on one side of the second inserted bar, which is far away from the old roadbed. The method and the device have the effect of improving the connection strength of the new road and the old road.
Description
Technical Field
The utility model belongs to the technical field of road paving and specifically relates to a new and old road bed mosaic structure is widened to road.
Background
At present, with the rapid development of economy, the vehicle holding amount is gradually increased, so that the road needs to be widened and modified to meet the requirement of economic development.
In the related art, a new road is usually directly paved on one side of an old road, and a connection portion between the new road and the old road is mainly connected by means of a reinforcing bar or the like.
In view of the above-mentioned related technologies, the inventor believes that, due to factors such as too long service life, the old road surface is squeezed by vehicles and the deformation thereof reaches a saturated state, and the new road surface is not yet compressed and deformed, so that the strength between the new and old road surfaces is different and the road surface is uneven in height difference, which is likely to damage the joint of the new and old road surfaces when repeatedly pressed, and further causes the crack separation of the road surface structure at the joint of the new and old road surfaces.
SUMMERY OF THE UTILITY MODEL
In order to improve the joint strength of new and old road, this application provides a new and old road bed mosaic structure of road widening.
The application provides a new and old road bed mosaic structure of road widening adopts following technical scheme:
a splicing structure for widening new and old roadbeds on a road comprises an old roadbed and a new roadbed, wherein a multi-stage step structure is arranged on the splicing surface of the old roadbed and the new roadbed; a plurality of first inserted rods are embedded in the old roadbed along the width direction; a plurality of second inserted rods are embedded in the new roadbed along the width direction; a reinforcing steel bar is connected between the first inserted link and the second inserted link; a first fixed steel bar is connected between the position of the second inserted bar close to the bottom and the correspondingly arranged step structure; and a second fixing steel bar is fixed on one side of the second inserted bar, which is far away from the old roadbed.
Through adopting above-mentioned technical scheme, at the first inserted bar of old road bed internal fixation, at new road bed internal fixation second inserted bar to connect reinforcing bar again on first inserted bar and second inserted bar, can effectively link together old road bed and new road bed, form stable overall structure. First fixed reinforcing bar and old roadbed fixed connection, second fixed reinforcing bar and new roadbed fixed connection can further improve the connection effect to new road bed and old roadbed, reduces new road bed and old roadbed junction and produces the possibility of fracture separation, and the road surface links up more firmly reliably.
Preferably, the first fixed steel bar is provided with a first connecting rod which is obliquely arranged from bottom to top to one side close to the old roadbed; the first connecting rod is provided with a plurality of along the length direction interval of first fixed reinforcing bar.
Through adopting above-mentioned technical scheme, set up the head rod of slope on first fixed reinforcing bar, be favorable to improving the joint strength of first fixed reinforcing bar and new road bed, strengthen the reliability of being connected of first fixed reinforcing bar and new road bed.
Preferably, the second fixed steel bar is provided with a second connecting rod which is obliquely arranged from bottom to top to one side far away from the old roadbed; the second connecting rod is provided with a plurality of along the length direction interval of second fixed reinforcing bar.
Through adopting above-mentioned technical scheme, the setting of second connecting rod is favorable to strengthening the fixed reinforcing bar of second and is connected with new road bed for the fixed reinforcing bar of second can improve the joint strength of second inserted bar and new road bed, improves the wholeness of new road bed and old road bed.
Preferably, the new roadbed is sequentially paved with a gravel base layer, a concrete slag layer, a coarse gravel layer and an asphalt layer from bottom to top.
Through adopting above-mentioned technical scheme, rubble basic unit can regard as the bottom of new road bed, and is firm reliable, and the concrete slag blanket can be favorable to improving the connection of rubble basic unit and coarse gravel layer, and coarse gravel layer low in cost, intensity is high.
Preferably, the upper end face of the gravel base layer is flush with the upper end face of the step structure at the bottommost part of the old roadbed; the upper end surface of each step structure positioned above the gravel base layer is an inclined surface; the inclined plane is obliquely arranged towards one side of the old roadbed.
Through adopting above-mentioned technical scheme, be the inclined plane with the up end setting of stair structure, can have a pulling force that is close to old roadbed direction to the position of being connected of new roadbed and old roadbed, be favorable to improving the joint strength of new roadbed and old roadbed.
Preferably, a first steel wire mesh is laid between the asphalt layer and the coarse gravel layer; and a second steel wire mesh is laid between the coarse gravel layer and the concrete slag layer.
Through adopting above-mentioned technical scheme, the setting of first wire net and second wire net is favorable to strengthening the holistic structural strength of new road bed.
Preferably, one side of the first steel wire mesh is paved and fixed on an inclined plane; one side of the second steel wire mesh is paved and fixed on the other inclined plane.
Through adopting above-mentioned technical scheme, first wire net and second wire net can carry out fixed connection with corresponding inclined plane, because first wire net and second wire net are latticed, have stronger frictional force with new road bed, can further consolidate the combination of new road bed and old road bed for new road bed is more firm reliable with old road bed junction.
Preferably, first wire net and second wire net all are provided with the locating lever of a plurality of intervals settings.
Through adopting above-mentioned technical scheme, all be provided with the locating lever on first wire net and second wire net, the locating lever is pegged graft in new road bed, is favorable to improving the tensile strength ability of first wire net and second wire net, further strengthens the tensile strength ability of new road bed and old road bed linking department, and the steadiness is higher.
In summary, the present application includes at least one of the following beneficial technical effects:
the first inserted bar is fixed in the old roadbed, the second inserted bar is fixed in the new roadbed, and the first inserted bar and the second inserted bar are connected with reinforcing steel bars, so that the old roadbed and the new roadbed can be effectively connected together to form a stable integral structure;
the upper end face of the step structure is arranged to be an inclined plane, so that a pulling force approaching to the old roadbed can be applied to the connecting part of the new roadbed and the old roadbed, and the connecting strength of the new roadbed and the old roadbed can be improved;
first wire net and second wire net can carry out fixed connection with corresponding inclined plane, because first wire net and second wire net are latticed, have stronger frictional force with new road bed, can further consolidate the combination of new road bed and old road bed for new road bed is more firm reliable with old road bed junction.
Drawings
Fig. 1 is a schematic structural diagram of the whole of the embodiment of the present application.
Description of reference numerals: 1. old roadbed; 11. a first plunger; 12. reinforcing steel bars; 13. a first fixed rebar; 14. a first connecting rod; 2. a new roadbed; 21. a macadam base; 22. a concrete slag layer; 23. a coarse gravel layer; 24. an asphalt layer; 25. a second plunger; 26. a second fixed rebar; 27. a second connecting rod; 3. a first step; 4. a second step; 5. a third step; 6. a first steel wire mesh; 61. positioning a rod; 7. and the second steel wire mesh.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses new and old road bed 1 mosaic structure of road widening. Referring to fig. 1, a road widening new and old roadbed 1 splicing structure comprises an old roadbed 1 and a new roadbed 2, wherein the new roadbed 2 is the widening roadbed of the old roadbed 1, and the upper surfaces of the new roadbed 2 and the old roadbed 1 are flush. The new roadbed 2 is sequentially paved with a gravel base layer 21, a concrete slag layer 22, a coarse gravel layer 23 and an asphalt layer 24 from bottom to top, the gravel base layer 21 can firmly fix the base layer of the new roadbed 2, the concrete slag layer 22 can effectively enhance the bonding capacity of two adjacent layer structures, the coarse gravel layer 23 is low in manufacturing cost and high in strength, concrete mortar is mixed in the coarse gravel layer 23, and the compression resistance and the bonding capacity of the new roadbed 2 can be further improved.
Referring to fig. 1, a three-level step structure is formed on the splicing surfaces of an old roadbed 1 and a new roadbed 2 through roughening treatment, the three-level step structure of the old roadbed and the new roadbed is matched with the three-level step structure of the new roadbed, the three-level step structure is a first-level step 3, a second-level step 4 and a third-level step 5 from bottom to top in sequence, the upper end surfaces of the second-level step 4 and the third-level step 5 are inclined surfaces, and the inclined surfaces face the old roadbed 1. The up end of rubble basic unit 21 and the up end parallel and level of first order step 3, the up end of concrete slag blanket 22 and the highest point parallel and level of second order step 4, the up end of coarse gravel layer 23 and the highest point parallel and level of third order step 5, and the position that rubble basic unit 21 is close to old road bed 1 is fixed through concrete mortar bonding with first order step 3, the position that concrete slag blanket 22 is close to old road bed 1 passes through concrete mortar bonding with second order step 4 and fixes, coarse gravel layer 23 is close to old road bed 1's position and third order step 5 and passes through concrete mortar bonding fixedly.
Referring to fig. 1, a first steel wire mesh 6 is laid between an asphalt layer 24 and a coarse gravel layer 23, a second steel wire mesh 7 is laid between the coarse gravel layer 23 and a concrete slag layer 22, one side of the first steel wire mesh 6 is laid on the inclined plane of a third step 5, the first steel wire mesh 6 is fixedly connected with the inclined plane of the third step 5 through a bolt, one side of the second steel wire mesh 7 is laid on the inclined plane of a second step 4, and the second steel wire mesh 7 is fixedly connected with the inclined plane of the second step 4 through a bolt. Through the setting of first wire net 6 and second wire net 7, can strengthen new road bed 2 and old road bed 1's joint strength for the difficult fracture that takes place in new road bed 2 and old road bed 1's linking department.
Referring to fig. 1, in order to further improve the connection effect of new road bed 2 and old road bed 1, all be fixed with the locating lever 61 of a plurality of vertical settings on first wire net 6 and second wire net 7, a plurality of locating levers 61 set up along the width direction interval of road, and the top height of a plurality of locating levers 61 is uneven along the width direction height of road, can improve the joint strength of the different degree of depth of adjacent layer structure.
Referring to fig. 1, in order to enhance the tensile strength of the joint of the new roadbed 2 and the old roadbed 1, a plurality of vertically arranged first inserted bars 11 are embedded in the old roadbed 1, and the first inserted bars 11 are embedded in the width direction of the old roadbed 1. The second inserted bar 25 vertically arranged is buried in the new roadbed 2, the second inserted bar 25 is buried in a plurality of positions along the width direction of the new roadbed 2, and a plurality of sharp spines are arranged at the bottoms of the first inserted bar 11 and the second inserted bar 25, so that the pulling resistance of the first inserted bar 11 and the second inserted bar 25 is improved. Fixedly connected with reinforcing bar 12 between first inserted bar 11 and the second inserted bar 25, reinforcing bar 12 level sets up, and reinforcing bar 12's one end is located pitch layer 24. The position that is close to the bottom at second inserted bar 25 is fixed with the first fixed reinforcing bar 13 that the level set up, and first fixed reinforcing bar 13 passes through bolt and the up end fixed connection of first step 3, in order to strengthen the joint strength of first fixed reinforcing bar 13 and new road bed 2, there are a plurality of head rods 14 at the last fixed surface of first fixed reinforcing bar 13, head rod 14 sets up to the lopsidedness that is close to old road bed 1 from bottom to top, and a plurality of head rods 14 set up along the length direction interval of first fixed reinforcing bar 13. A second fixing reinforcing steel bar 26 which is horizontally arranged is fixed on one side of the second inserted bar 25 far away from the old roadbed 1, the second fixing reinforcing steel bar 26 is positioned in the coarse gravel layer 23, a second connecting rod 27 which is obliquely arranged from bottom to top on one side of the old roadbed 1 is fixed on the second fixing reinforcing steel bar 26, and a plurality of second connecting rods 27 are arranged at intervals along the length direction of the second fixing reinforcing steel bar 26. The inclination directions of the first connecting rods 14 and the second connecting rods 27 are different, so that the connection strength of the joint of the new roadbed 2 and the old roadbed 1 can be improved, and the first fixing reinforcing steel bars 13 and the second fixing reinforcing steel bars 26 at different heights further enhance the connection firmness of the new roadbed 2 and the old roadbed 1.
The implementation principle of the splicing structure of the new and old road beds 1 for widening the road is as follows: through the arrangement of the first inserted bar 11, the second inserted bar 25 and the reinforcing steel bars 12, the connection strength of the new roadbed 2 and the old roadbed 1 can be improved, and a stable integral structure is formed. The arrangement of the first steel wire mesh 6 and the second steel wire mesh 7 further improves the tensile capacity of the joint of the new roadbed 2 and the old roadbed 1. The first fixing reinforcing steel bars 13 and the second fixing reinforcing steel bars 26 can improve the tensile property of the new roadbed 2 and the old roadbed 1 in different depth directions, and reduce the possibility that the joint of the new roadbed 2 and the old roadbed 1 is easy to crack.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a new and old road bed mosaic structure of road widening, includes old road bed (1) and new road bed (2), its characterized in that: the splicing surface of the old roadbed (1) and the new roadbed (2) is provided with a multi-stage step structure; a plurality of first inserted rods (11) are buried in the old roadbed (1) along the width direction; a plurality of second inserted rods (25) are buried in the new roadbed (2) along the width direction; a reinforcing steel bar (12) is connected between the first inserted bar (11) and the second inserted bar (25); a first fixed steel bar (13) is connected between the position, close to the bottom, of the second inserted bar (25) and the correspondingly arranged step structure; and a second fixing steel bar (26) is fixed on one side of the second inserted rod (25) far away from the old roadbed (1).
2. The splicing structure of the new and old road bases for widening roads of claim 1, wherein: a first connecting rod (14) which is obliquely arranged from bottom to top and is close to one side of the old roadbed (1) is arranged on the first fixed reinforcing steel bar (13); the first connecting rods (14) are arranged in a plurality at intervals along the length direction of the first fixed steel bars (13).
3. The splicing structure of the new and old road bases for widening roads of claim 1, wherein: the second fixed steel bars (26) are provided with second connecting rods (27) which are obliquely arranged from bottom to top on one side far away from the old roadbed (1); the second connecting rods (27) are arranged in a plurality at intervals along the length direction of the second fixed reinforcing steel bars (26).
4. The splicing structure of the new and old road bases for widening roads of claim 1, wherein: the new roadbed (2) is sequentially paved with a gravel base layer (21), a concrete slag layer (22), a coarse gravel layer (23) and an asphalt layer (24) from bottom to top.
5. The splicing structure of the new and old road bases for widening roads of claim 4, wherein: the upper end surface of the gravel base layer (21) is flush with the upper end surface of the step structure at the bottommost part of the old roadbed (1); the upper end surface of each step structure above the gravel base (21) is an inclined surface; the inclined plane is obliquely arranged towards one side of the old roadbed (1).
6. The splicing structure of the new and old road bases for widening roads of claim 5, wherein: a first steel wire mesh (6) is laid between the asphalt layer (24) and the coarse gravel layer (23); and a second steel wire mesh (7) is laid between the coarse gravel layer (23) and the concrete slag layer (22).
7. The splicing structure of the new and old road bases for widening roads of claim 6, wherein: one side of the first steel wire mesh (6) is paved and fixed on an inclined plane; one side of the second steel wire mesh (7) is paved and fixed on the other inclined plane.
8. The splicing structure of the new and old road bases for widening roads of claim 7, wherein: and a plurality of positioning rods (61) arranged at intervals are arranged on the first steel wire mesh (6) and the second steel wire mesh (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023041908.7U CN214497034U (en) | 2020-12-16 | 2020-12-16 | New and old road bed mosaic structure of road widening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023041908.7U CN214497034U (en) | 2020-12-16 | 2020-12-16 | New and old road bed mosaic structure of road widening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214497034U true CN214497034U (en) | 2021-10-26 |
Family
ID=78208863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023041908.7U Active CN214497034U (en) | 2020-12-16 | 2020-12-16 | New and old road bed mosaic structure of road widening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214497034U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134763A (en) * | 2021-11-30 | 2022-03-04 | 中铁第四勘察设计院集团有限公司 | Short-circuit foundation structure of embankment and construction method thereof |
| CN114855532A (en) * | 2022-04-15 | 2022-08-05 | 重庆昂然建筑工程有限公司 | Reconstruction construction method for old road in rural area |
-
2020
- 2020-12-16 CN CN202023041908.7U patent/CN214497034U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134763A (en) * | 2021-11-30 | 2022-03-04 | 中铁第四勘察设计院集团有限公司 | Short-circuit foundation structure of embankment and construction method thereof |
| CN114855532A (en) * | 2022-04-15 | 2022-08-05 | 重庆昂然建筑工程有限公司 | Reconstruction construction method for old road in rural area |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214497034U (en) | New and old road bed mosaic structure of road widening | |
| CN103898841A (en) | Hollow slab bridge reinforcing method | |
| CN112281564B (en) | Soft soil roadbed structure and reinforcing construction process | |
| CN106835880A (en) | Highway lateral support type peg board formula is without earth roadbed | |
| CN106522055A (en) | Construction method of widening roadbed of road | |
| CN214783016U (en) | Road repairing roadbed structure | |
| CN214992786U (en) | Municipal administration road design road surface domatic structure | |
| CN207017093U (en) | New-old concrete bond widens seam-line removal structure | |
| CN211571228U (en) | Road surface roadbed mosaic structure for reconstruction and extension engineering | |
| CN214782977U (en) | New and old road bed mosaic structure | |
| CN217174220U (en) | Overlap joint structure of new and old road bed seam | |
| CN211665457U (en) | Roadbed reinforced structure for highway engineering construction | |
| CN112962383A (en) | Asphalt pavement structure capable of preventing crack propagation and construction method | |
| CN218026926U (en) | Inclined shaft track laying bed | |
| CN217810289U (en) | Concrete road surface asphalt paving's anti-reflection crack road surface structure | |
| CN214737095U (en) | Novel crack control asphalt concrete pavement structure | |
| CN221030558U (en) | Assembled trench component | |
| CN216304317U (en) | Roadbed widening structure | |
| CN221072138U (en) | Combined structure of concrete pavement and asphalt repair pavement | |
| CN213740385U (en) | Horizontal new and old road bed connection structure with waterproof function | |
| CN217629213U (en) | Subgrade is with taking nail skeleton geogrid | |
| CN112281548B (en) | Construction method of large-gradient ballast bed | |
| CN220013258U (en) | Reinforcing steel bar combined type new and old pavement lap joint structure | |
| CN219470575U (en) | Roadbed geogrid | |
| CN221837343U (en) | New and old roadbed splicing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |