CN116856218A - Temporary pavement slab unit and pavement slab - Google Patents
Temporary pavement slab unit and pavement slab Download PDFInfo
- Publication number
- CN116856218A CN116856218A CN202310896406.1A CN202310896406A CN116856218A CN 116856218 A CN116856218 A CN 116856218A CN 202310896406 A CN202310896406 A CN 202310896406A CN 116856218 A CN116856218 A CN 116856218A
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- China
- Prior art keywords
- pavement slab
- layer
- temporary pavement
- temporary
- grid
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- 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.)
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- 239000011162 core material Substances 0.000 claims abstract description 17
- 239000010410 layer Substances 0.000 claims description 61
- 239000000463 material Substances 0.000 claims description 12
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000010426 asphalt Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229920002748 Basalt fiber Polymers 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 206010063659 Aversion Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
- E01C9/08—Temporary pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
- E01C9/08—Temporary pavings
- E01C9/086—Temporary pavings made of concrete, wood, bitumen, rubber or synthetic material or a combination thereof
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The application relates to a temporary pavement slab unit and a pavement slab, comprising a pavement layer, a structural layer and a grid layer which are sequentially arranged from top to bottom; the pavement layer comprises a baffle plate arranged at the edge of the upper surface of the structural layer, a plurality of baffle plates form a frame, and the pavement layer is arranged in the frame; the structure layer comprises an upper panel and a lower panel which are arranged in parallel, and a core material with a cavity is arranged between the upper panel and the lower panel; the road surface plate unit and the road surface plate have strong bearing capacity and light weight, and ensure the safe and smooth passing of vehicles.
Description
Technical Field
The application relates to the technical field of road engineering, in particular to a temporary pavement slab unit and a pavement slab.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The smoothness of the road is an important basic condition for ensuring the smooth development of engineering, particularly under the conditions of emergency and severe environment, the road is frequently required to be salvaged on a severe roadbed so as to ensure the passing of military vehicles and troops, and the temporary pavement slab is a building road component which is frequently adopted when the road is salvaged.
The conventional temporary pavement slab comprises a steel pavement slab and other metal series, and the temporary pavement slab has high one-time investment and can be recycled, but has heavy weight, inconvenient transportation and poor deformability; non-metal series such as PP or PE road panels are also adopted, so that the road panels are light in weight and can be recycled, but the load is lower. The road surface boards are also found to have small friction force with vehicle tires and the road surface boards, and particularly can be more slippery in rainy and snowy weather, thus bringing danger to pedestrians and vehicles on the road; secondly, the road surface board has small ground grabbing force, and the problem of road surface board displacement after repeated rolling of vehicles exists.
Disclosure of Invention
Aiming at the defects of the prior art, the application aims to provide a temporary pavement slab unit and a pavement slab, which solve the problems of small friction coefficient, small gripping force, large steel plate weight, low load bearing of a light plastic template and the like of the current temporary pavement slab.
In order to achieve the above object, the present application is realized by the following technical scheme:
in a first aspect, an embodiment of the present application provides a temporary pavement slab unit, including a pavement layer, a structural layer, and a mesh layer sequentially disposed from top to bottom;
the pavement layer comprises a baffle plate arranged at the edge of the upper surface of the structural layer, a plurality of baffle plates form a frame, and the pavement layer is arranged in the frame;
the structure layer comprises an upper panel and a lower panel which are arranged in parallel, and a core material with a cavity is arranged between the upper panel and the lower panel;
the grid layer is formed by a plurality of grid strips which are arranged in a crossing way.
Optionally, the surface layer is paved by asphalt or polyurethane.
Optionally, the baffle at the edge of the upper surface of the structural layer is obliquely arranged towards the inner side direction.
Optionally, the upper panel and the lower panel are made of aluminum alloy materials or fiber reinforced composite materials.
Optionally, the core material is formed by aluminum honeycomb or fiber reinforced composite plates.
Optionally, a plurality of reinforcing ribs are further arranged between the upper panel and the lower panel.
Optionally, the grid strips of the grid layer are made of aluminum alloy or fiber reinforced composite material.
Optionally, the edges of the structural layer and the edges of the grid layer are staggered to form a lap joint structure between adjacent temporary pavement slab structures.
Optionally, the grid layer is provided with a plurality of fixing holes on the outermost grid strips, and the adjacent temporary pavement slab structure can be fixed by the fixing holes and the threaded fasteners or the connecting rings.
In a second aspect, embodiments of the present application provide a temporary pavement slab assembled from a plurality of temporary pavement slab units according to the first aspect.
The beneficial effects of the application are as follows:
1. the temporary pavement slab unit and the pavement slab have the grid layer, can effectively increase the ground grabbing force of the pavement slab and prevent the pavement slab from shifting, and meanwhile, the temporary pavement slab unit and the pavement slab have the structural layer, wherein the structural layer comprises an upper panel, a lower panel and a core material with a cavity in the middle, and the temporary pavement slab unit and the pavement slab have the characteristics of light weight, difficult deformation and cracking, have bending rigidity similar to that of a solid slab with the same thickness as a material, have the characteristics of low weight under the characteristics of ensuring high strength and high bearing, are convenient and quick to carry and construct, can be widely used for different places and temporary pavement under various ground conditions, and meet the traffic of wheeled vehicles and other heavy-duty vehicles.
2. The temporary pavement slab unit and the pavement slab are formed by paving asphalt or polyurethane, and the surface friction coefficient is large, so that the effect of increasing the adhesion between the pavement slab and a vehicle is achieved, and the safe passing of the vehicle is ensured.
3. According to the temporary pavement slab unit and the pavement slab, the baffle is obliquely arranged towards the inner side, so that the phenomenon of layered post-displacement of the pavement slab can be effectively avoided.
4. According to the temporary pavement slab unit and the pavement slab, the edges of the structural layer and the grid layer are staggered to form the lap joint structure, or the grid strips at the outermost side of the grid layer are provided with the fixing holes, so that adjacent pavement slab units can be connected in a lap joint mode or in a bolt and connecting ring mode, and the construction is convenient and quick.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
FIG. 1 is a schematic front view showing the overall structure of embodiment 1 of the present application;
FIG. 2 is a schematic side view of the overall structure of embodiment 1 of the present application;
FIG. 3 is a top view of a mesh layer of embodiment 1 of the present application;
FIG. 4 is a schematic front view showing the overall structure of embodiment 2 of the present application;
FIG. 5 is a side view schematically showing the overall structure of embodiment 2 of the present application;
FIG. 6 is a schematic view of an elliptical ring connection used in example 2 of the present application;
FIG. 7 is a schematic diagram of an S-ring connection used in example 2 of the present application;
the composite material comprises a frame 1, a surface layer 2, an upper panel 3, a lower panel 4, a core material 5, a grid layer 6, a lap joint structure 7 and a connecting ring 8.
Detailed Description
Example 1
The present embodiment provides a temporary pavement slab unit, as shown in fig. 1-2, including a pavement layer, a structural layer, and a mesh layer sequentially disposed from top to bottom.
The pavement layer is used for bearing tensile stress and compressive stress and comprises a frame 1, a pavement layer 2 is arranged in the frame 1, in the embodiment, baffles are arranged at the edge positions of the upper surface of the structural layer, a plurality of baffles jointly encircle to form the frame 1, and the inner space of all the baffles is provided with the pavement layer.
The baffle adopts aluminium alloy plate, and its bottom and structural layer upper surface welding or bonding are fixed.
The surface layer 2 is paved by asphalt or polyurethane, and has a large surface friction coefficient, so that the effect of increasing the adhesion force of the pavement slab and the vehicle is achieved, the skidding of the vehicle is avoided, and the safe passing of the vehicle is ensured.
In this embodiment, the baffle inclines towards the inboard direction of frame to make frame inner space top area be less than the bottom area, adopt this kind of setting method, can effectively avoid surface course 2 to appear layering back aversion.
Preferably, two opposing baffles distributed in the width direction of the temporary pavement slab unit are inclined toward the inside of the frame.
The structure layer comprises an upper panel 3 and a lower panel 4 which are arranged in parallel, the pavement layer is arranged on the upper surface of the upper panel 3, and a core material 5 with a plurality of cavities is arranged between the upper panel 3 and the lower panel 4.
In this embodiment, the upper panel 3 and the lower panel 4 are made of aluminum alloy plates, in other embodiments, the upper panel 3 and the lower panel 4 are made of an existing fiber reinforced composite material, in the fiber composite material, one or more of carbon fibers or high-strength glass fibers or basalt fibers are combined according to a set proportion, a resin matrix of the fiber reinforced composite material is a thermoplastic matrix or a thermosetting resin material, and the reinforcing material and the resin matrix are combined according to the set proportion according to actual requirements, so that a person skilled in the art can set according to actual requirements, and detailed description is omitted herein.
A core material 5 is disposed between the upper panel 3 and the lower panel 4, in this embodiment, the core material 5 is an aluminum honeycomb, and a plurality of cavities are formed in the core material 5, and in another embodiment, the core material 5 is a glass fiber reinforced plastic honeycomb having a plurality of cavities.
In this embodiment, the structural layer has the characteristics of light weight, difficult deformation and cracking, and similar bending stiffness to that of a solid metal plate with the same thickness because the core material 5 has a plurality of cavities. The upper panel 3 and the lower panel 4 mainly bear in-plane tensile stress and in-plane shear stress caused by bending moment; the core material 5 mainly receives shear stress generated by transverse force and plays a role in supporting and transmitting panel load.
The core material 5 is integrally connected with the upper panel 3 and the lower panel 4 by bonding, welding or fusion welding.
In this embodiment, if the temporary pavement slab is applied under a higher load condition, a plurality of reinforcing ribs made of aluminum alloy are further disposed between the upper panel 3 and the lower panel 4, and the reinforcing ribs are fixed with the upper panel 3 and the lower panel 4 by welding, bonding or fusion welding, so that the overall rigidity of the entire core 5 is improved, and the supporting force of the pavement slab is enhanced. In other embodiments, the reinforcing ribs may be made of fiber reinforced composite material, and the reinforcing ribs are made of the same material as the upper panel and the lower panel.
As shown in fig. 3, the grid layer 6 is formed by arranging a plurality of grid strips in a crossing manner, and preferably, the grid layer 6 comprises a plurality of longitudinal grid strips and a plurality of transverse grid strips, and the longitudinal grid strips and the transverse grid strips are fixed in a crossing manner and vertically to form a grid-like structure.
The adoption of the grid layer 6 can effectively increase the ground grabbing force of the pavement slab and prevent the pavement slab from shifting.
In this embodiment, the longitudinal grid bars and the transverse grid bars are made of aluminum alloy, in other embodiments, the longitudinal grid bars and the transverse grid bars are made of fiber reinforced composite materials, wherein the fiber reinforced composite materials are formed by mixing and reinforcing one or more of carbon fibers, high-strength glass fibers, basalt fibers and the like according to a set proportion, the resin matrix can be a thermoplastic matrix or a thermosetting resin material, and the reinforcing materials and the resin matrix can be combined according to the actual demand and according to the set proportion, which is set by a person skilled in the art according to the actual demand and is not described in detail herein.
The road surface board unit of this embodiment has grid layer 6, can effectively increase the road surface board grab the land fertility, prevent that the road surface board from shifting, have the structural layer simultaneously, the structural layer includes the top panel 3, the core 5 that has the cavity in the middle of lower panel 4 and, have light in weight, be difficult for deformation and fracture, bending rigidity is close with the solid metal sheet of thickness characteristics, grid layer 6 and structural layer's combination is used, under the characteristics of guaranteeing high strength, high bearing, still have low weight's characteristics, transport and construction convenient and fast, can extensively be used in different places and temporary road surface use under the various ground conditions, satisfy the traffic of wheeled vehicle and other heavy-duty vehicles.
The corresponding edges of the structural layer and the pavement layer are flush, the edges of the structural layer and the edges of the grid layer 6 are staggered to form a lap joint structure 7 of adjacent pavement slab units, and the edges of the structural layer and the grid layer 6 of the pavement slab units are staggered by a set distance along the length direction and the width direction to form a lap joint structure 7 overlapped with surrounding pavement slab units.
Example 2
The difference between the temporary pavement slab unit and the temporary pavement slab unit in embodiment 1 is that the corresponding edges of the pavement slab, the structural layer and the grid layer 6 are flush, and a plurality of fixing holes are formed in a plurality of grid strips positioned at the outermost side in the grid layer 6, and adjacent pavement slab units are fixed through the fixing holes in the grid strips by bolts and nuts or by connecting rings 8.
When the bolts and the nuts are adopted for fixing, the rod parts of the bolts penetrate through the corresponding fixing holes of the two adjacent temporary pavement slab units, and then the fixing nuts are screwed, so that the two adjacent temporary pavement slab units are fixed.
As shown in fig. 6-7, the connecting ring 8 is an oval ring or an S-shaped ring passing through corresponding fixing holes of two adjacent pavement slab units.
The adjacent temporary pavement slab units adopt the connecting mode, so that stress concentration caused by dislocation of adjacent pavement slabs during vehicle passing is relieved to a certain extent, and the service life of the pavement slab is prolonged.
Example 3
The embodiment provides a temporary pavement slab, which comprises a plurality of temporary pavement slab units according to the embodiment 1, wherein adjacent pavement slab units are in lap joint connection through a lap joint structure.
Example 4:
the embodiment provides a temporary pavement slab, which comprises a plurality of temporary pavement slab units according to the embodiment 2, wherein adjacent pavement slab units are fixed through fixing holes of grid bars and bolts and nuts or fixed through fixing holes and connecting rings.
The temporary pavement slab described in embodiment 3 and embodiment 4 is paved on a construction site by adopting a mode of lap joint or connection of bolts and connecting rings, and the length and the width can be arbitrarily combined according to paving requirements, so that the construction is convenient and quick.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. The temporary pavement slab unit is characterized by comprising a pavement slab, a structural layer and a grid layer which are sequentially arranged from top to bottom;
the pavement layer comprises a baffle plate arranged at the edge of the upper surface of the structural layer, a plurality of baffle plates form a frame, and the pavement layer is arranged in the frame;
the structure layer comprises an upper panel and a lower panel which are arranged in parallel, and a core material with a cavity is arranged between the upper panel and the lower panel;
the grid layer is formed by a plurality of grid strips which are arranged in a crossing way.
2. A temporary pavement slab unit according to claim 1, wherein the surface layer is constructed from asphalt or polyurethane.
3. A temporary pavement slab unit according to claim 1, wherein the baffles at the upper surface edges of the structural layers are inclined inwardly.
4. A temporary pavement slab unit according to claim 1, wherein the upper and lower slabs are formed of an aluminum alloy material or a fiber-reinforced composite material.
5. A temporary pavement slab unit according to claim 1, wherein said core is constructed from aluminum honeycomb or fiber reinforced composite panels.
6. A temporary pavement slab unit according to claim 1, wherein a plurality of reinforcing ribs are further disposed between the upper and lower panels.
7. A temporary pavement slab unit according to claim 1, wherein the grid strips of the grid layer are formed from an aluminum alloy or a fiber reinforced composite.
8. A temporary pavement slab unit according to claim 1, wherein the edges of the structural layers are staggered from the edges of the grid layers to form overlapping structures between adjacent temporary pavement slab structures.
9. A temporary pavement slab unit according to claim 1, wherein the outermost grid strips of the grid layer are provided with a plurality of attachment holes, and adjacent temporary pavement slab structures are secured by means of attachment holes and threaded fasteners or attachment rings.
10. A temporary pavement slab, characterized by being assembled from a plurality of temporary pavement slab units according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310896406.1A CN116856218A (en) | 2023-07-20 | 2023-07-20 | Temporary pavement slab unit and pavement slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310896406.1A CN116856218A (en) | 2023-07-20 | 2023-07-20 | Temporary pavement slab unit and pavement slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116856218A true CN116856218A (en) | 2023-10-10 |
Family
ID=88223223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310896406.1A Pending CN116856218A (en) | 2023-07-20 | 2023-07-20 | Temporary pavement slab unit and pavement slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116856218A (en) |
-
2023
- 2023-07-20 CN CN202310896406.1A patent/CN116856218A/en active Pending
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