CN211689726U

CN211689726U - Permeable pavement

Info

Publication number: CN211689726U
Application number: CN202020169958.4U
Authority: CN
Inventors: 王雷; 赵国良; 王诚杰; 翟国静; 宋杨; 李�昊; 李慧
Original assignee: Hebei University of Water Resources and Electric Engineering
Current assignee: Hebei University of Water Resources and Electric Engineering
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2020-10-16
Anticipated expiration: 2030-02-14

Abstract

The utility model discloses a permeable pavement; comprises a surface layer, a base layer and a cushion layer which are sequentially paved from top to bottom; the surface layer is formed by connecting a plurality of prefabricated splicing blocks; the prefabricated splicing block comprises a first permeable layer, a first concrete layer, a second permeable layer and a second concrete layer which are sequentially connected from top to bottom; the utility model discloses a first permeable bed, the second permeable bed, first permeable hole and water conservancy diversion passageway make the water can be through first delivery port and second delivery port discharge outside the road surface, and can not flow in the road bed of below, prevent that the road bed from subsiding, and prevent the road surface deflection through prestressed concrete layer, and protect the water conservancy diversion passageway of below, the butt joint of piece is realized prefabricating with spacing bellied cooperation to rethread spacing groove, rethread glue injection hole carries out the seam connection, can improve the structural stability on road surface when improving the drainage requirement.

Description

Permeable pavement

Technical Field

The utility model relates to a road construction technical field, concretely relates to permeable pavement.

Background

In order to improve the drainage capacity of the road surface, the existing road surface is mostly formed into a permeable road surface by permeable asphalt or concrete, the permeable road surface can eliminate a road surface water film which brings adverse effects of driving, and the safety and the comfort of driving in rainy days are obviously improved.

However, although the permeable pavement has a certain drainage function, the drainage capacity is limited, when the precipitation rate exceeds the drainage rate of the permeable pavement, the pavement still has accumulated water, so that the superiority of the permeable pavement cannot be exerted, and the existing permeable pavement introduces water below the base layer through the permeable structure, so that the problems of deflection, collapse and the like are easy to occur, and the safety of the road is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a permeable pavement to solve current drainage ability not good, arouse the problem that the deflection and subside easily.

In order to achieve the above object, the present invention provides the following technical solutions:

a permeable pavement comprises a surface layer, a base layer and a cushion layer which are sequentially paved from top to bottom;

the surface layer is formed by connecting a plurality of prefabricated splicing blocks;

the prefabricated splicing block comprises a first permeable layer, a first concrete layer, a second permeable layer and a second concrete layer which are sequentially connected from top to bottom;

prestressed steel bars are arranged in the first concrete layer, the first concrete layer is provided with a plurality of first water permeable holes, and the first concrete layer is arched on the longitudinal section of the water permeable pavement in the width direction;

a flow guide channel communicated with the first permeable hole is arranged in the second permeable layer, the length direction of the flow guide channel is consistent with the width direction of the permeable pavement, a first water outlet and a second water outlet which are communicated with the outside are arranged at the two opposite ends of the flow guide channel, and the radial sizes of the first water outlet and the second water outlet are larger than that of the flow guide channel;

in the width direction of the permeable pavement, one of two opposite sides of the prefabricated splicing block is provided with a plurality of limiting grooves which are uniformly arranged at intervals, and the length direction of each limiting groove is consistent with the thickness direction of the prefabricated splicing block; in the width direction of the permeable pavement, a plurality of limiting bulges which are uniformly arranged at intervals are arranged on the other side of the two opposite sides of the prefabricated splicing block, and the limiting bulges are matched with the limiting grooves; and a notch is formed in the bottom wall of the limiting groove, a glue injection hole is formed between the notch and the limiting protrusion, and the length direction of the glue injection hole is consistent with the thickness direction of the prefabricated splicing block.

According to the utility model provides a permeable pavement, through first permeable bed, the second permeable bed, first permeable hole and water conservancy diversion passageway make the water can be through first delivery port and second delivery port discharge road surface off, and can not flow into in the road bed of below, prevent that the road bed from subsiding, and prevent the road surface deflection through prestressed concrete layer, and protect the water conservancy diversion passageway of below, the butt joint of piece is realized prefabricating with spacing bellied cooperation to rethread spacing groove, rethread glue injection hole carries out the seam connection, can improve the structural stability on road surface when improving the drainage requirement.

In addition, according to the utility model discloses permeable pavement of above-mentioned embodiment can also have following additional technical characterstic:

according to the utility model discloses an example, the water conservancy diversion passageway is including pre-buried the intraformational honeycomb duct of second permeating water, the honeycomb duct be equipped with a plurality ofly with the first second of permeating water hole intercommunication is permeated water the hole.

According to the utility model discloses an example, the second permeable bed is equipped with a plurality ofly the honeycomb duct, it is a plurality of the even interval of honeycomb duct sets up, adjacent two the honeycomb duct is connected through connecting tube.

According to an example of the present invention, the second permeable layer is provided with a plurality of bosses extending downward, and each of the bosses is provided with the diversion channel therein; the second concrete layer is provided with an installation groove matched with the boss.

According to the utility model discloses an example, including setting up the first escape canal and the second escape canal of surface course both sides, first delivery port with first escape canal intercommunication, the second delivery port with the second escape canal intercommunication.

According to an example of the utility model, the first drainage ditch is covered with a first water-permeable cover plate, and the second drainage ditch is covered with a second water-permeable cover plate; the first water-permeable cover plate is far away from one side of the surface layer and is provided with a first kerbstone, and the second water-permeable cover plate is far away from one side of the surface layer and is provided with a second kerbstone.

According to an example of the present invention, the first permeable layer is made of permeable asphalt, and/or the second permeable layer is made of permeable asphalt or permeable rubber.

According to one example of the present invention, the base layer includes an inorganic binder, and the cushion layer includes graded crushed stones.

According to the utility model discloses an example, in permeable pavement's width direction, first permeable stratum has 0.7% -1.7% cambered surface slope with its heart to having of both sides.

According to an example of the present invention, the first permeable layer has a thickness of 30-50mm, the first concrete layer has a thickness of 100-150mm, the second permeable layer has a thickness of 60-80mm, and the second concrete layer has a thickness of 80-120 mm.

Advantages of the above additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic view of a partial structure of a permeable pavement according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a schematic structural diagram of the prefabricated segment of the present embodiment;

fig. 5 is an enlarged view of the portion C of fig. 4.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a surface layer; 2. a base layer; 3. a cushion layer; 4. prefabricating splicing blocks; 5. a first water permeable layer; 6. a first concrete layer; 7. a second water permeable layer; 8. a second concrete layer; 9. a first water permeable hole; 10. a flow guide channel; 11. a first water outlet; 12. a second water outlet; 13. a limiting groove; 14. a limiting bulge; 15. injecting glue holes; 16. a flow guide pipe; 17. a second water permeable hole; 18. a boss; 19. a first drain ditch; 20. a second drain ditch; 21. a first water-permeable cover plate; 22. a second water-permeable cover plate; 23. a first curb; 24. a second curb.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Referring to fig. 1, the present embodiment provides a permeable pavement, which includes a surface layer 1, a base layer 2 and a cushion layer 3, which are sequentially laid from top to bottom; different from the cast-in-place form in the prior art, the surface layer 1 of the embodiment is formed by connecting a plurality of prefabricated tiles 4, and because the permeable pavement is considered to be a rainy region with multiple applications, the pavement of the embodiment is provided with the cushion layer 3 on the basis of the base layer 2 in order to improve the anti-settlement and collapse performance, the base layer 2 and the cushion layer 3 of the embodiment can be any structural form of the base layer 2 and the cushion layer 3, for example, the base layer 2 is an inorganic binder, and the cushion layer 3 is graded broken stone.

Referring to fig. 2 and 3, the prefabricated segment 4 of the present embodiment includes a first water permeable layer 5, a first concrete layer 6, a second water permeable layer 7, and a second concrete layer 8, which are sequentially connected from top to bottom; the first permeable layer 5 of this embodiment is used as the uppermost layer of the surface layer 1, which is not only used for supporting and transferring load, but also has to have good permeability, so the first permeable layer 5 of this embodiment is preferably permeable asphalt. The second permeable layer 7 of this embodiment needs to have a certain deformation capacity and bearing capacity, and needs to have good connection performance with the upper and lower layers, so the second permeable layer 7 of this embodiment can be made of permeable asphalt or permeable rubber.

In order to improve the deformation resistance of the pavement and protect the diversion channel 10 below the pavement, prestressed steel bars are arranged in the first concrete layer 6 of the embodiment, and the longitudinal section of the stretched first concrete layer 6 in the width direction of the permeable pavement is arched; and in order to guarantee the water permeability, the first concrete layer 6 of this embodiment is equipped with a plurality of first holes 9 of permeating water, and the formation of first hole 9 of permeating water can be directly chooses for use the concrete that permeates water, also can be this first hole 9 of permeating water of mould shaping in advance.

In order to improve the drainage capacity, a diversion channel 10 communicated with the first permeable hole 9 is arranged in the second permeable layer 7, the length direction of the diversion channel 10 is consistent with the width direction of the permeable pavement, a first water outlet 11 and a second water outlet 12 leading to the outside are arranged at two opposite ends of the diversion channel 10, the radial size of the first water outlet 11 and the radial size of the second water outlet 12 are larger than that of the diversion channel 10, or the radial size of the first water outlet 11 and the radial size of the second water outlet 12 are larger than that of the diversion channel 10 except for the first water outlet 11 and the second water outlet 12, so that the water body can be drained in time. When raining, the water body enters the first permeable holes 9 from the first permeable layer 5, then enters the backflow pipeline from the first permeable holes 9, and finally is discharged from two sides of the road surface through the first water outlet 11 and the second water outlet 12.

Referring to fig. 4 and 5, in order to ensure the assembly connection between the prefabricated splicing blocks 4, in the width direction of the permeable pavement, one of the two opposite sides of the prefabricated splicing block 4 of the present embodiment is provided with a plurality of spacing grooves 13 uniformly spaced, and the length direction of the spacing grooves 13 is consistent with the thickness direction of the prefabricated splicing blocks 4.

Correspondingly, in the width direction of the permeable pavement, the other side of the two opposite sides of the prefabricated splicing block 4 of the embodiment is provided with a plurality of limiting bulges 14 which are uniformly arranged at intervals, and the limiting bulges 14 are matched with the limiting grooves 13; during assembly, the limiting groove 13 and the limiting protrusion 14 are directly butted, and the shape of the limiting protrusion 14 and the shape of the limiting groove 13 in the embodiment are preferably isosceles trapezoids.

Further, in order to ensure the connection of the joint of the two prefabricated splicing blocks 4, the bottom wall of the limiting groove 13 of the embodiment is provided with a notch, the bottom wall of the limiting groove 13 is the bottom wall of the two side walls and the bottom wall formed by the cross section of the limiting groove 13 in the horizontal direction, an injection hole 15 is formed between the notch of the bottom wall of the embodiment and the limiting protrusion 14, the length direction of the injection hole 15 is consistent with the thickness direction of the prefabricated splicing blocks 4, and the asphalt or the joint glue and other structures are injected through the injection hole 15 to complete the complete butt joint of the two prefabricated splicing blocks 4.

Above-mentioned structure is through first permeable bed 5, second permeable bed 7, first permeable hole 9 and water conservancy diversion passageway 10 make the water can be through first delivery port 11 and second delivery port 12 discharge outside the road surface, and can not flow into in the road bed of below, prevent that the road bed from subsiding, and prevent the road surface deflection through prestressed concrete layer, and protect water conservancy diversion passageway 10 to the below, the butt joint of prefabricated piece 4 of piecing together is realized with spacing protruding 14's cooperation to rethread spacing groove 13, rethread glue injection hole 15 carries out the seam connection, can improve the structural stability on road surface when improving the drainage requirement.

The following further describes a specific structural form of the above-described structure of the present embodiment.

Referring to fig. 2 and 3, the diversion channel 10 of the present embodiment includes a diversion pipe 16 embedded in the second permeable layer 7, and the diversion pipe 16 is provided with a plurality of second permeable holes 17 communicated with the first permeable holes 9. And preferentially, be equipped with a plurality of honeycomb ducts 16 in the second permeable layer 7 of a prefabricated piece 4, a plurality of honeycomb ducts 16 are even interval setting, and two adjacent honeycomb ducts 16 are connected through the connecting tube, and preferably have two honeycomb ducts 16 in the second permeable layer 7 of a prefabricated piece 4 of this implementation, can not reduce structural strength when having guaranteed drainage performance.

Through the connection of connecting tube to and through the butt joint of the first delivery port 11 and the second delivery port 12 of each prefabricated piece 4 of piecing together, realized that surface course 1 after assembling can form a drainage pipe network that is linked together, prevent the jam of a certain honeycomb duct 16, can wash through the first delivery port 11 and the 12 drainage of second delivery port and intaking in the outside moreover, guaranteed drainage pipe network's unobstructed.

Further, in order to protect the draft tube 16, in the present embodiment, the second permeable layer 7 is provided with a plurality of bosses 18 extending downward, each boss 18 is provided with the draft channel 10 therein, or the draft tube 16 is installed in the boss 18; the second concrete layer 8 is provided with a mounting groove matched with the boss 18, under the protection of the prestressed first concrete layer 6, the mounting groove and the boss 18 further prevent the diversion channel 10 from deforming, and the combination of the second permeable layer 7 and the second concrete layer 8 is easy to realize, so that the binding force of the two is improved.

Referring to fig. 1, the permeable pavement of this embodiment further includes a first drainage ditch 19 and a second drainage ditch 20 disposed at two sides of the surface layer 1, the first water outlets 11 of the prefabricated segments 4 at one side of the permeable pavement are communicated with the first drainage ditch 19, the second water outlets 12 of the prefabricated segments 4 at the other side of the permeable pavement are communicated with the second drainage ditch 20, and a water body is directly guided into a drainage system near a road through the drainage ditches.

Preferably, in order to prevent the drainage ditch from entering impurities, a first water-permeable cover plate 21 is covered on the first drainage ditch 19, and a second water-permeable cover plate 22 is arranged on the second drainage ditch 20; and the first apron 21 of permeating water of this embodiment is equipped with first curb 23 in the one side of keeping away from surface course 1, and the second apron 22 of permeating water is equipped with second curb 24 in the one side of keeping away from surface course 1, and first apron 21 and the second apron 22 of permeating water still play the foundation effect of curb except protecting the escape canal promptly for the escape canal constitutes drainage road surface with prefabricated piece 4 jointly, also can improve road surface width size.

Furthermore, in order to improve the drainage performance, the inventor improves the structural parameters of the road surface through a large number of tests, firstly, in the width direction of the permeable road surface, the first permeable layer 5 has 0.7% -1.7% of cambered surface gradient from the center to the two sides, so that the optimal drainage performance is ensured, and meanwhile, the load bearing and the road surface noise reduction are facilitated.

Further, the thickness of the first water permeable layer 5 of the present embodiment is 30-50mm, preferably 35mm, the thickness of the first concrete layer 6 is 100-150mm, preferably 105mm, the thickness of the second water permeable layer 7 is 60-80mm, preferably 60mm, and the thickness of the second concrete layer 8 is 80-120mm, preferably 110 mm. The whole drainage flow path is shortened as much as possible while the anti-deflection and deformation cracking are ensured.

In the description of the present invention, it should be understood that the terms "inside" and "outside" are used for indicating the orientation or the positional relationship based on the orientation or the positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the indicated device must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The permeable pavement is characterized by comprising a surface layer, a base layer and a cushion layer which are sequentially paved from top to bottom;

2. The permeable pavement of claim 1, wherein the diversion channel includes a diversion pipe pre-embedded in the second permeable layer, the diversion pipe having a plurality of second permeable holes communicating with the first permeable holes.

3. The permeable pavement of claim 2, wherein a plurality of the flow-guiding pipes are arranged in the second permeable layer, the flow-guiding pipes are evenly spaced, and two adjacent flow-guiding pipes are connected by a connecting pipeline.

4. The permeable pavement of claim 3, wherein the second permeable layer is provided with a plurality of downwardly extending bosses, each boss having the diversion channel disposed therein; the second concrete layer is provided with an installation groove matched with the boss.

5. The permeable pavement of claim 4, comprising a first drainage ditch and a second drainage ditch disposed on both sides of the pavement, wherein the first water outlet is communicated with the first drainage ditch, and the second water outlet is communicated with the second drainage ditch.

6. The permeable pavement of claim 5, wherein the first drainage ditch is covered with a first permeable cover plate, and the second drainage ditch is covered with a second permeable cover plate; the first water-permeable cover plate is far away from one side of the surface layer and is provided with a first kerbstone, and the second water-permeable cover plate is far away from one side of the surface layer and is provided with a second kerbstone.

7. Permeable pavement according to any one of claims 1-6, characterized in that the first permeable layer is made of permeable asphalt and/or the second permeable layer is made of permeable asphalt or permeable rubber.

8. The permeable pavement of any one of claims 1-6, wherein the base course includes an inorganic binder and the underlayment includes graded crushed stones.

9. The permeable pavement according to any one of claims 1 to 6, wherein the first permeable layer has a camber slope of 0.7% to 1.7% from the center to both sides thereof in the width direction of the permeable pavement.

10. The permeable pavement according to any one of claims 1 to 6, wherein the first permeable layer has a thickness of 30-50mm, the first concrete layer has a thickness of 100-150mm, the second permeable layer has a thickness of 60-80mm, and the second concrete layer has a thickness of 80-120 mm.