CN216193741U - Bituminous paving structure based on coordinate road bed road surface deformation - Google Patents
Bituminous paving structure based on coordinate road bed road surface deformation Download PDFInfo
- Publication number
- CN216193741U CN216193741U CN202122737827.9U CN202122737827U CN216193741U CN 216193741 U CN216193741 U CN 216193741U CN 202122737827 U CN202122737827 U CN 202122737827U CN 216193741 U CN216193741 U CN 216193741U
- Authority
- CN
- China
- Prior art keywords
- asphalt
- layer
- base
- road
- paved
- 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 utility model relates to the technical field of road asphalt pavement structures, and provides an asphalt pavement structure based on coordinated roadbed and pavement deformation, which comprises a base, permeable asphalt, a cushion layer, a subbase layer, an asphalt concrete upper base layer, a cement concrete lower surface layer and a modified asphalt surface layer, wherein the permeable asphalt is paved at the upper end of the base, the cushion layer is paved at the upper end of the permeable asphalt, and the subbase layer is paved at the upper end of the cushion layer. The influence of the uneven deformation of the roadbed on the pavement structure can be effectively relieved.
Description
Technical Field
The utility model relates to the technical field of highway asphalt pavement structures, in particular to an asphalt pavement structure based on coordinated roadbed and pavement deformation.
Background
The deformation characteristic of the road surface is an important factor influencing the use quality of the road surface, and the deformation characteristic of the road surface is the property of various plastic deformations formed on the surface of the road surface due to the repeated action of wheel loads;
the uneven deformation of the roadbed, such as consolidation settlement of a soft foundation, settlement deformation of loess, freezing and thawing cycle deformation of frozen soil, moisture absorption expansion of expansive soil, dehydration drying shrinkage deformation and the like, seriously influences the stability of the roadbed structure, easily causes diseases such as landslide, collapse, slide collapse, cracking and the like of the roadbed, and simultaneously causes uneven distribution of road surface stress, easily causes waves, cuddles and subsidence of the road surface, even cracks of a surface layer and a semi-rigid base layer, and cracks of a concrete panel;
researches show that the existing asphalt pavement has the following defects:
because most of the existing asphalt pavements are pavement structures formed by repeatedly pouring single cement concrete and asphalt, when the pavements are rolled by vehicles, the pavement structures are damaged due to fatigue caused by the fact that broken stones are used as base layers or cushion layers are loose and easy to extrude and move;
at present, most of treatment of additionally paved asphalt concrete surface layers is concentrated on the concrete surface layers, and after the cement concrete surface layers are used for a long time, when asphalt is paved, the asphalt and roadbed on two sides are directly jointed, and the filled gravels on the inner side of the thick inner side of the asphalt and the roadbed on two sides are easy to move outwards when the asphalt is rolled by a vehicle, so that the surface layer structure is easy to break due to the hollowing, and the durability of the surface layer structure is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the prior art and provides an asphalt pavement structure based on coordinated roadbed pavement deformation.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an asphalt pavement structure based on coordinated roadbed and pavement deformation comprises a base, permeable asphalt, a cushion layer, a subbase layer, an asphalt concrete upper base layer, a cement concrete lower surface layer and a modified asphalt surface layer, wherein the permeable asphalt is paved at the upper end of the base, the cushion layer is paved at the upper end of the permeable asphalt, the subbase layer is paved at the upper end of the cushion layer, the asphalt concrete upper base layer is paved at the upper end of the subbase layer, the cement concrete lower surface layer is paved at the upper end of the asphalt concrete upper base layer, and the modified asphalt surface layer is paved at the upper end of the cement concrete lower surface layer;
the upper end of bed course has laid the rigidity and the bearing capacity that promote the road surface, strengthens road surface structure's wholeness and intensity, helps delaying the ground subassembly of road surface structure crack, the sky and fracture problem.
Preferably, the foundation assembly comprises a base plate and a connecting plate;
the base plate is laid in the middle of the upper surface of the cushion layer, and the connecting plate is laid on the side face of the upper surface of the cushion layer.
Preferably, a plurality of base plates are vertically laid on the upper end of the cushion layer at equal intervals.
Preferably, the connecting plates are provided with two groups, the two groups are respectively positioned at the outer ends of the base plates, and the connecting plates are connected with the roadbed of the road surface.
Preferably, the base plate is trapezoidal, and trapezoidal recess is formed at interval between the adjacent base plate.
Preferably, a base layer is embedded between the adjacent substrates, and the base layer is 20CM water-stable macadam.
Preferably, the connecting plate is "T" shape, and the parallel laminating of bottom of connecting plate is on the surface of bed course, and the centre of connecting plate is upwards vertical extension to the inside of asphalt concrete upper base layer.
Preferably, the connection plate is buried with a base layer on both sides, and the base layer is spaced in the middle of the connection plate.
Has the advantages that:
1-a base can be firmly hammered by paving a cushion layer at the upper end of the permeable asphalt, and a plurality of substrates are paved at the upper end of the cushion layer at equal intervals in the vertical direction to provide support for the subbase;
2-trapezoidal grooves are formed between adjacent substrates at intervals, when the base layers are laid, 20CM water-stable broken stones of the base layers are filled in the trapezoidal grooves, so that the base layers at the upper ends of the substrates are thinner, and the base layers between the adjacent substrates are thicker, so that when a road surface is rolled by a vehicle, the hard force of the road surface can be transmitted into the base layers between the adjacent substrates through the base layers, the broken stones are ensured to have certain integrity and rigidity, fatigue diseases of a surface layer structure caused by the fact that ordinary graded broken stones are used as base layers or cushion layers can be relieved, and the influence of uneven deformation of the road surface on the road surface structure can be effectively relieved;
3-the middle department of connecting plate upwards vertically extends to the inside of asphalt concrete upper base course, and the middle department of connecting plate carries out the interval with the subbase for the rubble of inboard subbase in situ landfill is difficult for moving to the outside when rolling, can be as a whole with original surface course structural connection, neither influences the bonding of asphalt concrete and both sides road bed, can eliminate old surface course structure's weak region again, effectively solves the problem that the crack upwards reflects that runs through.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a substrate structure according to the present invention;
FIG. 3 is a schematic diagram of a connecting plate structure according to the present invention.
Illustration of the drawings: 1-a substrate; 2-prime coat asphalt; 3-cushion layer; 4-a substrate; 5-connecting plates; 6-underlayment; 7-an asphalt concrete upper base layer; 8-cement concrete lower surface layer; 9-modified asphalt surface layer.
Detailed Description
Referring to fig. 1-3, an asphalt pavement structure based on coordinated roadbed and pavement deformation comprises a substrate 1, transparent asphalt 2, a cushion layer 3, a subbase layer 6, an asphalt concrete upper base layer 7, a cement concrete lower surface layer 8 and a modified asphalt surface layer 9, wherein the transparent asphalt 2 is paved at the upper end of the substrate 1, the cushion layer 3 is paved at the upper end of the transparent asphalt 2, the subbase layer 6 is paved at the upper end of the cushion layer 3, the asphalt concrete upper base layer 7 is paved at the upper end of the subbase layer 6, the cement concrete lower surface layer 8 is paved at the upper end of the asphalt concrete upper base layer 7, and the modified asphalt surface layer 9 is paved at the upper end of the cement concrete lower surface layer 8;
the upper end of the cushion layer 3 is laid with a foundation assembly which can improve the rigidity and the bearing capacity of the road surface, enhance the integrity and the strength of the road surface structure and help to delay the problems of cracks, hollowing and fracture of the road surface structure.
In this embodiment, the foundation assembly includes a base plate 4 and a connection plate 5;
the base plate 4 is laid at the middle of the upper surface of the mat 3, and the connection plate 5 is laid at the side of the upper surface of the mat 3.
In this embodiment, a plurality of base plates 4 are laid in the upper end of the cushion layer 3 at equal vertical intervals.
In this embodiment, connecting plate 5 is provided with two sets ofly, is located the outer end department of base plate 4 respectively, and connecting plate 5 meets the seam with the road bed on road surface for the seam is met to the one end of connecting plate 5 can meet with the road bed on road surface alone.
In this embodiment, the base boards 4 are trapezoidal, trapezoidal grooves are formed between adjacent base boards 4 at intervals, and when the base layer 6 is laid, 20CM water-stable crushed stones are filled in the trapezoidal grooves for filling.
In this embodiment, a base layer 6 is buried between adjacent substrates 4, and the base layer 6 is 20CM water-stable crushed stone.
In this embodiment, the connecting plate 5 is "T" shape, and the parallel laminating of bottom of connecting plate 5 is on the surface of bed course 3, and the centre of connecting plate 5 upwards vertically extends to the inside of asphalt concrete upper base 7.
Wherein, the upper end of connecting plate 5 is in same horizontal plane with the surface of asphalt concrete upper base course 7, can be as a whole with original surface course structural connection, neither influences the bonding of asphalt concrete and both sides road bed, can eliminate old surface course structure's weak area again.
In this embodiment, the base layers 6 are embedded in both sides of the connecting plate 5, and the base layers 6 are spaced apart from each other in the middle of the connecting plate 5, so that the crushed stones embedded in the inner base layers 6 are not easily moved outward during rolling.
The working principle is as follows:
in order to make the combination of the asphalt surface course and the non-asphalt material base course good, the thin layer which penetrates into the surface of the base course and is formed by pouring emulsified asphalt, coal asphalt or liquid asphalt on the base course 1 is permeable asphalt 2, the base course can be firmly beaten by paving the cushion course 3 on the upper end of the permeable asphalt 2, a plurality of base boards 4 are paved on the upper end of the cushion course 3 at equal intervals in the vertical direction to provide support for the subbase 6, trapezoidal grooves are formed at intervals between the adjacent base boards 4, 20CM water stable macadam of the subbase 6 is filled in the trapezoidal grooves when the subbase 6 is paved, so that the subbase 6 on the upper end of the base board 4 is thinner, and the subbase 6 between the adjacent base boards 4 is thicker, when the road surface is rolled by a vehicle, the hard force of the subbase 6 can be conducted to the subbase 6 between the adjacent base boards 4, the macadam is ensured to have certain integrity and rigidity, the fatigue of the surface course structure caused by the common graded macadam as the base course or the cushion course can be relieved, the influence of the uneven deformation of the roadbed on the pavement structure can be effectively relieved;
be provided with two sets of connecting plates 5 through the outer end department at base plate 4, can be better be connected with the edge on road surface, make the seam more natural, connecting plate 5 seams mutually with the roadbed on road surface, because connecting plate 5 is "T" shape, and the parallel laminating in the surface of bed course 3 in bottom of connecting plate 5, the vertical inside that extends to asphalt concrete upper base 7 that upwards is located in the middle of connecting plate 5, bottom base 6 is carried out the interval in the middle of connecting plate 5, make the difficult outside lateral shifting of rubble of inboard bottom base 6 intussuseption when rolling, can be as a whole with original surface course structural connection, neither influence the bonding of asphalt concrete and both sides roadbed, can eliminate old surface course structure's weak region again, effectively solve the problem of running through the crack upwards reflection.
Claims (7)
1. The utility model provides a bituminous paving structure based on coordinate road bed road surface warp which characterized in that: comprises that
The asphalt pavement structure comprises a substrate (1), wherein permeable asphalt (2) is paved at the upper end of the substrate (1);
the permeable asphalt (2), wherein a cushion layer (3) is laid at the upper end of the permeable asphalt (2);
the upper end of the cushion layer (3) is paved with a bottom base layer (6);
the upper end of the subbase layer (6) is paved with an asphalt concrete upper base layer (7);
the asphalt concrete upper base layer (7), wherein a cement concrete lower surface layer (8) is laid at the upper end of the asphalt concrete upper base layer (7);
the concrete surface layer (8) is arranged on the upper end of the concrete surface layer (8) and is paved with a modified asphalt surface layer (9);
the upper end of the cushion layer (3) is paved with a foundation assembly which can improve the rigidity and the bearing capacity of the road surface, enhance the integrity and the strength of the road surface structure and help to delay the problems of cracks, hollowing and fracture of the road surface structure, and the foundation assembly comprises a base plate (4) and a connecting plate (5);
the base plate (4) is paved in the middle of the upper surface of the cushion layer (3), and the connecting plate (5) is paved on the side surface of the upper surface of the cushion layer (3).
2. The asphalt pavement structure based on coordinated road-based pavement deformation according to claim 1, wherein: a plurality of base plates (4) are laid on the upper end of the cushion layer (3) at equal vertical intervals.
3. The asphalt pavement structure based on coordinated road-based pavement deformation according to claim 1, wherein: the two groups of connecting plates (5) are respectively positioned at the outer ends of the base plates (4), and the connecting plates (5) are connected with the roadbed of the road surface.
4. The asphalt pavement structure based on coordinated road-based pavement deformation according to claim 1, wherein: the base plates (4) are in a trapezoid shape, and trapezoid grooves are formed between every two adjacent base plates (4) at intervals.
5. The asphalt pavement structure based on coordinated road-based pavement deformation according to claim 1, wherein: a base layer (6) is embedded between the adjacent substrates (4), and the base layer (6) is 20CM water-stable macadam.
6. The asphalt pavement structure based on coordinated road-based pavement deformation according to claim 1, wherein: the connecting plate (5) is in a T shape, the bottom of the connecting plate (5) is attached to the surface of the cushion layer (3) in parallel, the middle of the connecting plate (5) vertically extends upwards to the inside of the asphalt concrete upper base layer (7), and the upper end of the connecting plate (5) and the surface of the asphalt concrete upper base layer (7) are located on the same horizontal plane.
7. The asphalt pavement structure based on coordinated road-based pavement deformation according to claim 1, wherein: the bottom base layers (6) are buried in the two sides of the connecting plates (5), and the bottom base layers (6) are spaced in the middle of the connecting plates (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122737827.9U CN216193741U (en) | 2021-11-10 | 2021-11-10 | Bituminous paving structure based on coordinate road bed road surface deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122737827.9U CN216193741U (en) | 2021-11-10 | 2021-11-10 | Bituminous paving structure based on coordinate road bed road surface deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216193741U true CN216193741U (en) | 2022-04-05 |
Family
ID=80907563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122737827.9U Active CN216193741U (en) | 2021-11-10 | 2021-11-10 | Bituminous paving structure based on coordinate road bed road surface deformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216193741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115928518A (en) * | 2022-12-15 | 2023-04-07 | 中国十七冶集团有限公司 | A pressure-resistant subgrade structure and its construction method |
-
2021
- 2021-11-10 CN CN202122737827.9U patent/CN216193741U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115928518A (en) * | 2022-12-15 | 2023-04-07 | 中国十七冶集团有限公司 | A pressure-resistant subgrade structure and its construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106638213B (en) | A kind of cement road construction method | |
| CN205276086U (en) | Expansion joint device is handled to combined type road surface tip | |
| CN105586818A (en) | Light foam layer for widening roadbed of road and construction process of light foam layer | |
| CN113215907B (en) | Asphalt additional paving structure for old concrete pavement of urban road intersection and construction method thereof | |
| CN111962350A (en) | Geocell Reinforced Cement Concrete Pavement Structure and Surface Slab Thickness Calculation Method | |
| CN204940030U (en) | Reconstruction and extension project new-old concrete bond Pavement mosaic structure | |
| CN204401444U (en) | A kind of high embankment filled soil end of the bridge anti-settling structure | |
| CN202787044U (en) | Longitudinal crack treatment structure for bituminous concrete pavement | |
| CN108277713A (en) | The roadbed laying structure and construction method extended for highway | |
| CN104452510B (en) | Immediate construction method of rural road | |
| CN212452152U (en) | A geocell reinforced cement concrete pavement structure | |
| CN216193741U (en) | Bituminous paving structure based on coordinate road bed road surface deformation | |
| CN217579587U (en) | Reinforced solidified soil road additionally provided with wear-resistant thin layer and adhesive layer | |
| CN213447912U (en) | Cement stabilized macadam base road structure | |
| CN110670436A (en) | Structure for preventing urban road subgrade from non-uniform settlement and construction method thereof | |
| RU2394959C1 (en) | Road surface structure | |
| CN217052896U (en) | Prefabricated assembly type roadbed splicing width structure | |
| CN107740323B (en) | Semi-rigid and semi-flexible highway extension splicing structure and construction method | |
| CN217781616U (en) | Asphalt pavement structure | |
| CN207552833U (en) | A kind of elevated bridge basal perimeter ground road structure | |
| CN214656062U (en) | A roadbed structure with improved durability | |
| CN213896603U (en) | Resistance to compression crack control road surface | |
| CN103898824B (en) | The method that Cold And Frozen-soil Regions roadbed processes substrate with plastic draining board | |
| CN212052140U (en) | A combined structure for widening, anti-freezing and cracking of roads in cold regions | |
| CN211142682U (en) | Structure for preventing urban road subgrade from non-uniform settlement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |