CN221218365U - Road surface and road surface laying device with grid reinforced - Google Patents
Road surface and road surface laying device with grid reinforced Download PDFInfo
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- CN221218365U CN221218365U CN202323162962.0U CN202323162962U CN221218365U CN 221218365 U CN221218365 U CN 221218365U CN 202323162962 U CN202323162962 U CN 202323162962U CN 221218365 U CN221218365 U CN 221218365U
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- 239000010426 asphalt Substances 0.000 claims abstract description 116
- 239000010410 layer Substances 0.000 claims abstract description 114
- 239000000203 mixture Substances 0.000 claims abstract description 98
- 239000004568 cement Substances 0.000 claims abstract description 52
- 230000002787 reinforcement Effects 0.000 claims abstract description 37
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 101100257124 Caenorhabditis elegans sma-10 gene Proteins 0.000 claims abstract description 8
- 239000012790 adhesive layer Substances 0.000 claims abstract description 7
- 239000004033 plastic Substances 0.000 claims description 19
- 229920003023 plastic Polymers 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 5
- -1 polypropylene Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 230000008595 infiltration Effects 0.000 claims description 2
- 238000001764 infiltration Methods 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims 3
- 238000010276 construction Methods 0.000 abstract description 10
- 230000000149 penetrating effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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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
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model discloses a grid reinforced pavement and a pavement paving device, and relates to the technical field of road construction. The road surface is respectively from bottom to top roadbed, two ash stabilized macadam subbase layer, reinforced cement stabilized macadam base layer, high-permeability emulsified asphalt penetrating layer, reinforced AC-20 asphalt mixture layer, adhesive layer, SMA-10 ultrathin wearing layer, wherein: the reinforced cement stabilized macadam base layer comprises a cement stabilized macadam base layer and grid reinforced ribs integrally paved in the cement stabilized macadam base layer, and the reinforced AC-20 asphalt mixture layer comprises an AC-20 asphalt mixture layer and grid reinforced ribs integrally paved in the AC-20 asphalt mixture layer. The pavement paving device moves forward along the asphalt mixture paving machine in the same direction, and a gap for accommodating the grid reinforcement to pass through is formed; the device is arranged at the front side of a vibration pressing plate of the paver, and can realize the integrated paving of the grid reinforcement in the cement stabilized macadam base layer and the reinforcement AC-20 asphalt mixture layer by layer. The pavement disclosed by the utility model can reduce pavement surface cracks and prolong the service life.
Description
Technical Field
The utility model relates to the technical field of road construction, in particular to a grid reinforced pavement and a pavement paving device.
Background
Asphalt pavement has the advantages of simple construction, good travelling comfort and the like, and becomes a main paving form of the current high-grade highway in China. However, in the service process of the asphalt pavement, due to the joint coupling effect of factors such as vehicle load, ambient temperature, moisture and the like, the asphalt pavement is often subjected to rutting, cracks, pits and the like, so that the service life of the pavement is greatly shortened, meanwhile, the travelling comfort is also reduced, and a great threat is caused to travelling safety.
At present, expert scholars in the industry do considerable research on improving the performance of asphalt pavement, mainly comprising measures of optimizing the structural type of the pavement, improving the asphalt performance, adjusting the grading of mineral aggregate and the like, and obtain a rich research result, and the application effect in practical engineering is obvious. The grille is widely applied to engineering scenes such as side slopes, flood control dykes, dams and the like, and can greatly improve the mechanical properties of the structure. However, the application of gratings inside pavement layers is currently less limited by construction processes and equipment. If the grid can be used as a reinforcement layer to be paved in the mixed material layer, the grid has a more outstanding effect on improving various performances of the asphalt pavement.
Disclosure of Invention
The utility model provides a grid reinforced pavement and a pavement paving device aiming at the needs and the defects of the prior art.
In a first aspect, the present utility model provides a grid reinforced pavement, which solves the above technical problems by adopting the following technical scheme:
The utility model provides a road surface of grid reinforcement, this road surface structure is road bed, two ash stable rubble subbase, the stable rubble basic unit of reinforcement cement, high infiltration emulsified asphalt layer, the mixed layer of reinforcement AC-20 pitch, adhesive layer, SMA-10 ultrathin wearing layer from bottom to top respectively, wherein:
The reinforced cement stabilized macadam base layer comprises a cement stabilized macadam base layer and grid reinforced ribs integrally paved in the cement stabilized macadam base layer, and the reinforced AC-20 asphalt mixture layer comprises an AC-20 asphalt mixture layer and grid reinforced ribs integrally paved in the AC-20 asphalt mixture layer.
Optionally, the steel wire geogrid is adopted as the grid reinforcement integrally paved in the cement stabilized macadam base layer, and the specification of the steel wire geogrid is 10cm multiplied by 10cm.
Optionally, the grid reinforcement integrally laid in the AC-20 asphalt mixture layer is a biaxially oriented plastic geogrid made of polypropylene or polyethylene material, and the specification of the biaxially oriented plastic geogrid is 8cm multiplied by 8cm.
Optionally, the grid reinforcement is located three-quarters high in the cement stabilized macadam base and the AC-20 asphalt mix.
In a second aspect, the present utility model further provides a road surface paving device with reinforced grids, which solves the technical problems as follows:
The grid reinforced road surface paving device is arranged on the front side of a vibration pressing plate of an asphalt mixture paver and is used for paving a reinforced cement stabilized macadam base layer and a reinforced AC-20 asphalt mixture layer of a road surface structure, and the structure of the grid reinforced road surface paving device comprises a limit cross rod and a bottom rod which are arranged in parallel up and down;
The same side ends of the limiting cross rod and the bottom rod are connected through a screw rod to form a gap for accommodating the passing of the grid reinforcement, and the bottom rod is used for lifting the grid reinforcement upwards so as to enable the grid reinforcement to pass through the gap; the limiting cross rod is used for downwards pressing the grid reinforcement passing through the gap, and the grid reinforcement passing through the gap is positioned below the vibration pressing plate of the asphalt mixture paver;
The bottom rod is positioned at the front side of the vibration flattening plate of the asphalt mixture paver, two ends of the bottom rod are connected with telescopic rods, one ends of the telescopic rods are fixed on the side baffle plate of the vibration flattening plate of the asphalt mixture paver, and the other ends of the telescopic rods extend to the outer side of the crawler mechanism of the asphalt mixture paver through fixed hooks; the back side of the bottom rod is fixed with supporting teeth which are parallel to the ground and used for upwards supporting the grid reinforcement passing through the gaps, and the time for reinforcing the grid is reserved for the cement stabilized macadam base and the AC-20 asphalt mixture layer.
Optionally, the limiting cross bar has a circular arc chamfer in the direction of the grid reinforcement entry.
Optionally, the number of the supporting teeth involved is plural, the plural supporting teeth are parallel and equally spaced and then fixed on the back side of the bottom rod, and the upper surfaces of the plural supporting teeth are flush with the upper surface of the bottom rod.
The grating reinforced pavement and pavement paving device provided by the utility model have the beneficial effects that compared with the prior art:
(1) The grid reinforced pavement can effectively improve the high-temperature performance of the pavement structure and enhance the rut resistance; meanwhile, the anti-reflection coating has good inhibition effect on generation and transmission of the reflection cracks of the base layer, so that the road surface cracks are reduced, and the service life of the road surface is prolonged;
(2) The pavement paving device is arranged on the asphalt mixture paving machine, and can realize the addition of the grid in a certain layer in the pavement structure, improve the pavement performance and prolong the service life.
Drawings
FIG. 1 is a schematic view of a pavement structure according to a first embodiment of the present utility model;
Fig. 2 is a schematic view of a road surface paving apparatus according to a second embodiment of the present utility model.
The reference numerals in the drawings represent:
1. an SMA-10 ultra-thin wearing layer; 2. an adhesive layer;
3. A reinforced AC-20 asphalt mixture layer; 31. plastic geogrid, 32, AC-20 asphalt mixture layer;
4. High-permeability emulsified asphalt penetrating layer;
5. Reinforced cement stabilized macadam base; 51. steel wire geogrid; 52. cement stabilized macadam base;
6. A secondary ash stabilized macadam subbase layer; 7. roadbed;
8. A bottom bar; 9. a limiting cross bar; 10. support teeth; 11. a telescopic rod; 12. and a fixing hook.
Detailed Description
In order to make the technical scheme, the technical problems to be solved and the technical effects of the utility model more clear, the technical scheme of the utility model is clearly and completely described below by combining specific embodiments.
Embodiment one:
Referring to fig. 1, this embodiment provides a grid reinforced pavement, the pavement structure is from bottom to top roadbed 7, two ash stabilized macadam subbase layer 6, reinforced cement stabilized macadam subbase layer 5, high-permeability emulsified asphalt penetrating layer 4, reinforced AC-20 asphalt mixture layer 3, adhesive layer 2, SMA-10 ultrathin wearing layer 1, wherein:
The reinforced cement stabilized macadam base layer 5 comprises a cement stabilized macadam base layer 52 and a steel wire geogrid 51 integrally paved in the cement stabilized macadam base layer 52, wherein the specification of the steel wire geogrid is 10cm multiplied by 10cm;
The reinforced AC-20 asphalt mixture layer 3 comprises an AC-20 asphalt mixture layer 32 and a plastic geogrid 31 integrally paved in the AC-20 asphalt mixture layer 32, and the specification of the biaxially oriented plastic geogrid is 8cm multiplied by 8cm.
When the pavement of this embodiment is constructed:
Paving a roadbed 7, a two-ash stabilized macadam subbase layer 6, a high-permeability emulsified asphalt penetrating layer 4, a bonding layer 2 and an SMA-10 ultrathin wearing layer 1 by using conventional mechanical equipment and a construction method; paving the roadbed 7 by using equipment such as an excavator, a land leveler, a road roller and the like and related operation methods, and paving the adhesive layer 2 by using a sprinkling truck and related operation methods;
When the reinforced cement stabilized macadam base layer 5 is paved, firstly, a steel wire geogrid 51 is paved above a two-ash stabilized macadam base layer 6, then, a pavement paving device is installed on the front side of a vibration flattening plate of an asphalt mixture paving machine, the pavement paving device is provided with a gap for accommodating the steel wire geogrid 51 to pass through, then, cement stabilized macadam is poured into a hopper of the asphalt mixture paving machine, the asphalt mixture paving machine is started, the pavement paving device follows the asphalt mixture paving machine to advance in the same direction, and the steel wire geogrid 51 is positioned below the vibration flattening plate after passing through the gap of the pavement paving device, so that the integral pavement of the steel wire geogrid 51 in the cement stabilized macadam base layer 52 is realized;
When the reinforced AC-20 asphalt mixture layer 3 is paved, firstly, a plastic geogrid 31 is paved above a high-permeability emulsified asphalt permeable layer 4, then, a pavement paving device is installed on the front side of a vibration flattening plate of an asphalt mixture paver, the pavement paving device is provided with a gap for accommodating the plastic geogrid 31 to pass through, then, the AC-20 asphalt mixture is poured into a hopper of the asphalt mixture paver, the asphalt mixture paver is started, the pavement paving device follows the asphalt mixture paver to advance in the same direction, and the plastic geogrid 31 is positioned below the vibration flattening plate after passing through the gap of the pavement paving device, so that the plastic geogrid 31 is integrally paved in the AC-20 asphalt mixture layer 32.
In the construction process, referring to fig. 2, the road surface paving device includes a limit cross bar 9 and a bottom bar 8 which are disposed in parallel up and down, the same side ends of the limit cross bar 9 and the bottom bar 8 are connected by a screw to form a gap for accommodating the steel wire geogrid 51/plastic geogrid 31 to pass through, and the bottom bar 8 is used for lifting the steel wire geogrid 51/plastic geogrid 31 upwards so as to enable the steel wire geogrid 51/plastic geogrid 31 to pass through the gap; the limiting cross rod 9 is used for pressing down the steel wire geogrid 51/plastic geogrid 31 passing through the gap, and the steel wire geogrid 51/plastic geogrid 31 passing through the gap is positioned below a vibration pressing plate of the asphalt mixture paver; the bottom rod 8 is positioned at the front side of the vibration flattening plate of the asphalt mixture paver, two ends of the bottom rod 8 are connected with telescopic rods 11, one end of each telescopic rod 11 is fixed on a side baffle plate of the vibration flattening plate of the asphalt mixture paver, and the other end of each telescopic rod extends to be hooked on the outer side of a crawler mechanism of the asphalt mixture paver through a fixed hook 12; the back side of the bottom rod 8 is fixedly provided with a plurality of supporting teeth 10, the plurality of supporting teeth 10 are parallel and are arranged at equal intervals and then are fixed on the back side of the bottom rod 8, the upper surfaces of the plurality of supporting teeth 10 are flush with the upper surface of the bottom rod 8, the plurality of supporting teeth 10 are used for upwards supporting grid reinforcement through gaps, and the time for reinforcing the grids is reserved for the cement stabilized macadam base 5 and the AC-20 asphalt mixture layer 3.
It should be added that after the asphalt mixture paver finishes paving the cement stabilized macadam base layer and the AC-20 asphalt mixture layer by means of the pavement paving device, the steel wire geogrid 51 and the plastic geogrid 31 are correspondingly positioned at three-quarter high positions of the cement stabilized macadam base layer 5 and the AC-20 asphalt mixture layer 3.
It was found that, compared with the existing pavement (the structure of the pavement is from bottom to top, the roadbed 7, the two-ash stabilized macadam subbase layer 6, the reinforced cement stabilized macadam base layer 5, the high-permeability emulsified asphalt permeable layer 4, the reinforced AC-20 asphalt mixture layer 3, the adhesive layer 2 and the SMA-10 ultrathin wearing layer 1) in this embodiment, the steel wire geogrid 51 and the plastic geogrid 31 can reduce the stress strain level inside the cement stabilized macadam base layer 5 and the AC-20 asphalt mixture layer 3 in the pavement structure, improve the durability of the pavement structure, and prolong the service life of the pavement, and the concrete data are as follows:
specifically, for the steel wire geogrid 51 laid in the cement stabilized macadam base 5 of the present embodiment, it can reduce cracking of the cement stabilized macadam; for the plastic geogrid 31 paved in the AC-20 asphalt mixture layer 3 in this embodiment, the high temperature stability of the geogrid can be improved, and the rut resistance of the asphalt pavement is improved.
In general, the grating reinforced pavement can delay the generation and upward transmission of the base layer reflection cracks, reduce the pavement cracking risk, and has excellent rut resistance and prolonged pavement service life.
The supplementary ones are: the pavement structure in this embodiment is composed of a roadbed 7, a two-ash stabilized macadam subbase layer 6, a reinforced cement stabilized macadam subbase layer 5, a high-permeability emulsified asphalt penetrating layer 4, a reinforced AC-20 asphalt mixture layer 3, a bonding layer 2, and an SMA-10 ultrathin wearing layer 1, wherein the pavement paving device is additionally arranged on a construction equipment asphalt mixture paving machine of the reinforced cement stabilized macadam subbase layer 5 and the reinforced AC-20 asphalt mixture layer 3, and the construction method and the construction standard of each layer are not different from those of the existing pavement construction standard.
Embodiment two:
With reference to fig. 2, this embodiment further provides a grid-reinforced pavement paving device, which is installed on the front side of a vibration flattening plate of an asphalt mixture paver, and is used for completing pavement of a pavement reinforced cement stabilized macadam base layer 5 and a reinforced AC-20 asphalt mixture layer 3, wherein the reinforced cement stabilized macadam base layer comprises a grid reinforced and a cement stabilized macadam base layer, and the reinforced AC-20 asphalt mixture layer comprises a grid reinforced and an AC-20 asphalt mixture layer.
The structure of the pavement paving device comprises a limit cross rod 9 and a bottom rod 8 which are arranged in parallel up and down.
The same side ends of the limiting cross rod 9 and the bottom rod 8 are connected through a screw rod to form a gap for accommodating the passing of the grid reinforcement, and the bottom rod 8 is used for lifting the grid reinforcement upwards so as to enable the grid reinforcement to pass through the gap; the limiting cross rod 9 is used for pressing down the grid reinforcement passing through the gap, and the grid reinforcement passing through the gap is positioned below the vibration flattening plate of the asphalt mixture paver;
The bottom rod 8 is positioned at the front side of the vibration flattening plate of the asphalt mixture paver, two ends of the bottom rod 8 are connected with telescopic rods 11, one end of each telescopic rod 11 is fixed on a side baffle plate of the vibration flattening plate of the asphalt mixture paver, and the other end of each telescopic rod extends to be hooked on the outer side of a crawler mechanism of the asphalt mixture paver through a fixed hook 12; the back side of the bottom rod 8 is fixedly provided with a plurality of supporting teeth 10, the plurality of supporting teeth 10 are parallel to the ground, the plurality of supporting teeth 10 are parallel to each other and are arranged at equal intervals and then are fixedly arranged on the back side of the bottom rod 8, the upper surfaces of the plurality of supporting teeth 10 are flush with the upper surface of the bottom rod 8 and are used for upwards supporting grid reinforcement through gaps, and the time for reinforcing the grids is reserved for the cement stabilized macadam base 5 and the AC-20 asphalt mixture layer 3.
In this embodiment, the limiting cross bar 9 has an arc chamfer in the grid reinforcement entry direction.
When the road surface laying device of the present embodiment is used,
Preparation: the assembly of the pavement paving device is completed, the pavement paving device is placed on the front side of the vibration flattening plate of the asphalt mixture paving machine, the telescopic rod 11 is adjusted, one end of the telescopic rod 11 is fixed on the vibration flattening plate side baffle of the asphalt mixture paving machine, and the other end of the telescopic rod extends to be hooked on the outer side of the crawler mechanism of the asphalt mixture paving machine through the fixing hook 12.
And (II) paving:
1. Paving a reinforced cement stabilized macadam base layer: ① Grid reinforcement is paved above the two-ash stabilized macadam subbase layer 6 which is paved, and the grid reinforcement is arranged in a gap formed between the bottom rod 8 and the limit cross rod 9; ② Placing cement stabilized macadam in a hopper of the asphalt mixture paver, and starting the asphalt mixture paver: the asphalt mixture paver drives the pavement paving device to move forwards, the bottom rod 8 lifts the grid to stiffen, the limiting cross rod 9 presses down the grid to stiffen, the grid stiffen passes through a gap formed between the bottom rod 8 and the limiting cross rod 9, the grid stiffen passing through the gap is positioned above the supporting teeth 10 and below the vibration flattening plate, and meanwhile, cement stabilized macadam in the hopper of the asphalt mixture paver falls through the grid stiffen under the action of the winch cage and further falls on the surface of the secondary ash stabilized macadam base layer; ③ The vibration flattening plate compacts the cement stabilized macadam downwards to finish the laying of the reinforced cement stabilized macadam base 5.
2. Paving a reinforced AC-20 asphalt mixture layer: ① Grid reinforcement is paved above the high-permeability emulsified asphalt permeable layer 4 which is paved, and the grid reinforcement is placed in a gap formed between the bottom rod 8 and the limiting cross rod 9; ② Placing an AC-20 asphalt mixture in a hopper of an asphalt mixture paver, and starting the asphalt mixture paver: the asphalt mixture paver drives the pavement paving device to move forwards, the bottom rod 8 lifts the grid to stiffen, the limiting cross rod 9 presses down the grid to stiffen, the grid stiffen passes through a gap formed between the bottom rod 8 and the limiting cross rod 9, the grid stiffen passing through the gap is positioned above the supporting teeth 10 and below the vibration flattening plate, meanwhile, the AC-20 asphalt mixture in the hopper of the asphalt mixture paver falls through the grid stiffen under the action of the stranding cage and further falls on the surface of the high-permeability emulsified asphalt permeable layer; ③ And compacting the AC-20 asphalt mixture downwards by a vibration compacting plate to finish the paving of the reinforced AC-20 asphalt mixture layer 3.
The pavement paving device of the embodiment is arranged on the asphalt mixture paving machine, and in the pavement paving process of the first embodiment, the paving machine can be assisted to realize paving work of the reinforced cement stabilized macadam base layer 5 and the reinforced AC-20 asphalt mixture layer 3.
The supplementary ones are: the direction that the asphalt mixture paver was laid on the road surface is always taken as the front side, at this moment, spacing horizontal pole 9 is placed in the vibration flattening board front side of asphalt mixture paver, the vibration flattening board side shield of asphalt mixture paver is fixed in to road surface paving device's telescopic link 11 one end, the other end extends through fixed hook and hangs in the crawler of asphalt mixture paver outside, a plurality of support teeth 10 are fixed in bottom bar 8 trailing flank for prop up the grid reinforcing bar through the clearance, give cement stabilized macadam and AC-20 asphalt mixture that falls from asphalt mixture paver hopper enough time through the grid reinforcing bar, vibration flattening board downward compaction cement stabilized macadam and AC-20 asphalt mixture, finally realize the laying of reinforced cement stabilized macadam basic unit 5 and reinforced AC-20 asphalt mixture layer 3.
The foregoing has outlined rather broadly the principles and embodiments of the present utility model in order that the detailed description of the utility model may be better understood. Based on the above-mentioned embodiments of the present utility model, any improvements and modifications made by those skilled in the art without departing from the principles of the present utility model should fall within the scope of the present utility model.
Claims (9)
1. The utility model provides a road surface that grid adds muscle, its characterized in that, this road surface structure is road bed, two ash stabilized macadam subbase layers, adds muscle cement stabilized macadam basic unit, high infiltration emulsified asphalt layer, adds muscle AC-20 asphalt mixture layer, adhesive layer, SMA-10 ultrathin wearing layer from bottom to top respectively, wherein:
The reinforced cement stabilized macadam base layer comprises a cement stabilized macadam base layer and grid reinforced ribs integrally paved in the cement stabilized macadam base layer, and the reinforced AC-20 asphalt mixture layer comprises an AC-20 asphalt mixture layer and grid reinforced ribs integrally paved in the AC-20 asphalt mixture layer.
2. The grid-reinforced pavement of claim 1, wherein the grid reinforcement integrally laid in the cement stabilized macadam foundation layer is a steel wire geogrid.
3. A grid reinforced pavement according to claim 2, wherein the wire geogrid has a gauge of 10cm x 10cm.
4. The grid-reinforced pavement of claim 1, wherein the grid reinforcement integrally laid in the AC-20 asphalt mixture layer is a biaxially oriented plastic geogrid made of polypropylene or polyethylene material.
5. A grid reinforced pavement according to claim 4, wherein the biaxially oriented plastic geogrid has a gauge of 8cm x 8cm.
6. A grid ribbed pavement according to claim 1, wherein the grid ribs are located at three-quarters of the height of the cement stabilized macadam bed and AC-20 asphalt mix bed.
7. The grid reinforced pavement paving device is arranged on the front side of a vibration flattening plate of an asphalt mixture paver and is used for paving a reinforced cement stabilized macadam base layer and a reinforced AC-20 asphalt mixture layer of a pavement structure, and is characterized by comprising a limit cross rod and a bottom rod which are arranged in parallel up and down;
The limiting cross rod is connected with the end parts of the same side of the bottom rod through a screw rod to form a gap for accommodating the passing of the grid reinforcement, and the bottom rod is used for lifting the grid reinforcement upwards so as to enable the grid reinforcement to pass through the gap; the limiting cross rod is used for downwards pressing the grid reinforcement passing through the gap, and the grid reinforcement passing through the gap is positioned below the vibration pressing plate of the asphalt mixture paver;
The bottom rod is positioned at the front side of the vibration pressing plate of the asphalt mixture paver, two ends of the bottom rod are connected with telescopic rods, one ends of the telescopic rods are fixed on the side baffle plate of the vibration pressing plate of the asphalt mixture paver, and the other ends of the telescopic rods extend to the outer side of the crawler mechanism of the asphalt mixture paver through fixing hooks; the back side of the bottom rod is fixedly provided with supporting teeth which are parallel to the ground and are used for upwards supporting the grid reinforcement passing through the gaps, and the time for reinforcing the grid is reserved for the cement stabilized macadam base and the AC-20 asphalt mixture layer.
8. A grid ribbed pavement paving apparatus of claim 7, wherein the limit rail has a rounded chamfer in the grid ribbed entry direction.
9. The grid ribbed pavement laying apparatus of claim 7, wherein the plurality of support teeth are parallel and equally spaced and then fixed to the rear side of the bottom bar, and the upper surfaces of the plurality of support teeth are flush with the upper surface of the bottom bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323162962.0U CN221218365U (en) | 2023-11-23 | 2023-11-23 | Road surface and road surface laying device with grid reinforced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323162962.0U CN221218365U (en) | 2023-11-23 | 2023-11-23 | Road surface and road surface laying device with grid reinforced |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221218365U true CN221218365U (en) | 2024-06-25 |
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ID=91544894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323162962.0U Active CN221218365U (en) | 2023-11-23 | 2023-11-23 | Road surface and road surface laying device with grid reinforced |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221218365U (en) |
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2023
- 2023-11-23 CN CN202323162962.0U patent/CN221218365U/en active Active
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