Road permeable pavement structure
Through the design of multi -layer structure of road permeable pavement, including the filtering structure and drainage system, it solves the problem of poor water permeability in existing roads, realizes the effective penetration and discharge of rainwater, and improves the shock absorption effect of the road surface.
Patent Information
- Application Number
- CN202421009711.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The existing roads have poor water permeability. After the rainwater accumulates and the vehicle drives, it is easy to cause road damage.
Design a kind of road permeable pavement structure, including pavement layers, concrete structure layers, buffer layers, soil base layers, filtering structures, flow track structures, drainage pipes, and drainage sink structures. And set the buffer layer between the soil base layer and the concrete structure layer to improve the shock absorption effect.
Effectively achieve the penetration and discharge of rainwater, prevent the road of the pavement, and at the same time improve the shock absorption effect of the pavement and prolong the service life.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of road paving, in particular to a road permeable paving structure. Background Art
[0002] Road is the infrastructure for various trackless vehicles and pedestrians to pass through; according to its usage characteristics, it can be divided into highways, urban roads, rural roads, factory and mine roads, forestry roads, test roads, competition roads, automobile test roads, workshop passages and school roads, etc. In ancient China, there were also post roads;
[0003] The existing roads have poor water permeability. Rainwater accumulation and vehicle traffic can easily cause road damage.
[0004] Therefore, those skilled in the art provide a road permeable pavement structure to solve the problems raised in the above background technology. Utility Model Content
[0005] In view of the above-mentioned defects in the prior art, a permeable road pavement structure is provided, which enables the surface water on the road to be effectively infiltrated and discharged, thereby preventing the surface water from damaging the road; in addition, the road surface is also provided with a vibration reduction effect.
[0006] The technical solution adopted by the utility model to solve the above technical problems is:
[0007] The permeable road pavement structure is characterized by comprising, from top to bottom, a road surface layer, a first concrete structure layer, a second concrete structure layer, a buffer layer and a soil base layer; and
[0008] a first filter structure and a second filter structure, wherein the first filter structure is arranged between the first concrete structure layer and the second concrete structure layer, and the second filter structure is arranged between the buffer layer and the soil base layer;
[0009] A flow channel structure and a drainage pipe, wherein the flow channel structure is arranged in the first concrete structure layer and communicated between the pavement layer and the first filter structure; the drainage pipe is arranged in the second concrete structure layer and the buffer layer and communicated between the first filter structure and the second filter structure;
[0010] The drainage trough structure is arranged in the soil base layer and is located at the bottom of the second filtering structure. The drainage trough structure is connected with the second filtering structure; the second filtering structure has the function of gathering rainwater to the drainage trough structure.
[0011] According to the above technical solution, a groove is provided at the top of the second concrete structure layer, and the outlets of all the flow channel structures are located directly above the groove; the first filtering structure includes a first impermeable layer paved on the inner wall surface of the groove, a first filter screen paved on the surface of the first impermeable layer, and a sand and gravel layer filling the area of the groove above the first filter screen, and the top ends of all the drainage pipes pass through the first impermeable layer, and the top pipe openings of the drainage pipes abut against the lower surface of the first filter screen.
[0012] According to the above technical solution, a fixed groove is provided at the top of the soil base layer, and the outlets of all the drainage pipes are located directly above the fixed groove; the second filtering structure includes a second impermeable layer paved on the inner wall surface of the fixed groove, and a gravel layer filled in the fixed groove area above the second impermeable layer, and the top of the drainage trough structure passes through the second impermeable layer, and the top of the drainage trough is attached to the bottom of the gravel layer.
[0013] According to the above technical solution, the second anti-seepage layer adopts an inverted trapezoidal structure, and the inner bottom end of the inverted trapezoidal structure is flush with the top end of the drainage ditch structure.
[0014] According to the above technical solution, the drainage trough structure includes a drainage pipe arranged along the length direction of the road surface, a drainage trough fixed at the top of the drainage pipe, a water-permeable hole connecting the drainage trough and the inside of the drainage pipe, and a second filter screen laid in the drainage trough; all of the water-permeable holes are located in the bottom area of the drainage trough, and the size of the second filter screen matches the size of the drainage trough.
[0015] According to the above technical solution, the drainage trough structure also includes a reinforcement rod, and multiple reinforcement rods are fixed on the drainage pipe and form a certain angle with the drainage pipe; the reinforcement rods penetrate the side of the drainage pipe and extend into the soil base. The multiple reinforcement rods and the drainage pipe form an integrated structure to strengthen the contact area between the drainage pipe and the soil base, thereby increasing the stress tolerance of the drainage pipe.
[0016] According to the above technical solution, the first anti-seepage layer and the second anti-seepage layer are both waterproof geotextile layers.
[0017] According to the above technical solution, a bonding layer is arranged between the pavement layer and the first concrete structure layer; the bonding layer adopts water-permeable modified emulsified asphalt.
[0018] According to the above technical solution, large pieces of crushed stone are filled in the flow channel structure.
[0019] According to the above technical solution, the contact surface between the top of the buffer layer and the bottom of the second concrete structure layer is a wavy surface, and the buffer layer adopts a plastic particle permeable concrete layer.
[0020] The utility model has the following beneficial effects:
[0021] 1. Rainwater enters the first filter structure through the flow channel structure in the pavement layer to achieve initial filtration of rainwater; then the rainwater enters the second filter structure through the drainage pipe from the first filter structure to achieve secondary filtration of rainwater; finally, the rainwater filtered by the second filter structure is gathered to the drainage trough structure under the action of the second filter structure and discharged into the external municipal pipe network. In addition, a buffer layer is set between the soil base layer and the second concrete structure layer, which can improve the overall shock absorption effect of the road body and extend its service life.
[0022] 2. The second anti-seepage layer adopts an inverted trapezoidal structure, and the inner bottom end of the inverted trapezoidal structure is flush with the top of the drainage trough structure. The inverted trapezoidal structure of the second anti-seepage layer is used to gather rainwater entering the second filtration structure to the top of the drainage trough structure and enter the drainage trough structure for discharge.
[0023] 3. Multiple reinforcing rods form an integrated structure with the drainage pipe, which strengthens the contact area between the drainage pipe and the soil base, thereby increasing the stress-bearing capacity of the drainage pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a structural schematic diagram of an embodiment provided by the utility model;
[0025] Figure 2 This is a schematic diagram of the buffer layer installation structure of an embodiment provided by the utility model;
[0026] Figure 3 yes Figure 2 A is an enlarged structural diagram;
[0027] Figure 4 yes Figure 2 The enlarged structural diagram at B in FIG.
[0028] In the figure, 1, pavement layer; 2, first concrete structure layer; 3, second concrete structure layer; 4, buffer layer; 5, soil base layer; 6, first filtration structure; 6-1, first anti-seepage layer; 6-2, first filter screen; 6-3, sand and gravel layer; 7, second filtration structure; 7-1, second anti-seepage layer; 7-2, gravel layer; 8, flow channel structure; 9, drainage pipe; 10, drainage trough structure; 10-1, drainage pipe; 10-2, drainage trough; 10-3, water-permeable hole; 10-4, second filter screen; 10-5, reinforcement rod; 11, bonding layer; 12, large pieces of gravel. DETAILED DESCRIPTION
[0029] The utility model is described in detail below with reference to the accompanying drawings and embodiments.
[0030] Reference Figure 1 to Figure 4 As shown, the utility model provides a permeable road pavement structure.
[0031] Example 1
[0032] From top to bottom, it includes a pavement layer 1, a first concrete structure layer 2, a second concrete structure layer 3, a buffer layer 4 and a soil base layer 5; and
[0033] A first filter structure 6 and a second filter structure 7, wherein the first filter structure is arranged between the first concrete structure layer and the second concrete structure layer, and the second filter structure is arranged between the buffer layer and the soil base layer;
[0034] A flow channel structure 8 and a drainage pipe 9, wherein the flow channel structure is arranged in the first concrete structure layer and communicated between the pavement layer and the first filter structure; the drainage pipe is arranged in the second concrete structure layer and the buffer layer and communicated between the first filter structure and the second filter structure;
[0035] The drainage trough structure 10 is arranged in the soil base layer and is located at the bottom of the second filter structure. The drainage trough structure is connected to the second filter structure; the second filter structure has the function of gathering rainwater to the drainage trough structure.
[0036] In this embodiment, rainwater enters the first filter structure through the flow channel structure in the road surface layer to achieve initial filtration of rainwater; then the rainwater enters the second filter structure from the first filter structure through the drainage pipe to achieve secondary filtration of rainwater; finally, the rainwater filtered by the second filter structure is gathered to the drainage trough structure under the action of the second filter structure and discharged into the external municipal pipe network. In addition, a buffer layer is provided between the soil base layer and the second concrete structure layer, which can improve the overall shock absorption effect of the road body and extend its service life.
[0037] Example 2
[0038] The structure and principle of embodiment 2 are similar to those of embodiment 1, except that a preferred arrangement of the first filtering structure is provided.
[0039] A groove is provided at the top of the second concrete structure layer, and the outlets of all the flow channel structures are located directly above the groove; the first filtering structure includes a first impermeable layer 6-1 paved on the inner wall surface of the groove, a first filter screen 6-2 paved on the surface of the first impermeable layer, and a gravel layer 6-3 filled in the area of the groove above the first filter screen, and the top ends of all the drainage pipes pass through the first impermeable layer, and the top pipe openings of the drainage pipes are against the lower surface of the first filter screen. The road surface water penetrates into the gravel layer through the flow channel structure, and then enters the drainage pipe after being filtered by the gravel layer and the first filter screen; the gravel layer is laid on the upper part of the groove, and the first filter screen is set at the lower part, so that a good filtering effect can be achieved.
[0040] Example 3
[0041] The structure and principle of Example 3 are similar to those of Example 1, except that: a preferred arrangement of the second filter structure is provided. A fixed groove is provided at the top of the soil base layer, and the outlets of all the drainage pipes are located directly above the fixed groove; the second filter structure includes a second impermeable layer 7-1 paved on the inner wall surface of the fixed groove, and a gravel layer 7-2 filled in the fixed groove area above the second impermeable layer. The top of the drainage trough structure passes through the second impermeable layer, and the top of the drainage trough is attached to the bottom of the gravel layer. The filtered water in the first filter structure enters the gravel layer of the second filter layer through the drainage pipe. The gravel layer can also play a filtering role, and the water that has been filtered multiple times enters the drainage trough structure through the water-permeable holes, and is finally discharged to the external municipal pipe network.
[0042] Preferably, the second anti-seepage layer adopts an inverted trapezoidal structure, and the inner bottom end of the inverted trapezoidal structure is flush with the top of the gutter structure. The inverted trapezoidal structure of the second anti-seepage layer is used to gather rainwater entering the second filter structure to the top of the gutter structure and enter the gutter structure for discharge.
[0043] Example 4
[0044] The structure and principle of embodiment 4 are similar to those of embodiment 1, except that: a preferred arrangement of the drainage trough structure is provided. The drainage trough structure includes a drainage pipe 10-1 arranged along the length of the road surface, a drainage trough 10-2 fixed at the top of the drainage pipe, a water-permeable hole 10-3 connecting the drainage trough and the inside of the drainage pipe, and a second filter screen 10-4 laid in the drainage trough; all the water-permeable holes are located in the bottom surface area of the drainage trough, and the size of the second filter screen matches the size of the drainage trough. The second filter screen is arranged in the drainage trough to prevent small gravel from entering the water-permeable hole and causing blockage.
[0045] In order to enhance the installation strength of the drainage trough structure in the soil base, the drainage trough structure further includes reinforcing rods 10-5, multiple reinforcing rods are fixed on the drainage pipe and form a certain angle with the drainage pipe; the reinforcing rods penetrate the side of the drainage pipe and extend into the soil base. The multiple reinforcing rods and the drainage pipe form an integrated structure to enhance the contact area between the drainage pipe and the soil base, thereby increasing the stress tolerance of the drainage pipe.
[0046] In Examples 1-4, the first anti-seepage layer and the second anti-seepage layer are both waterproof geotextile layers.
[0047] In Examples 1-4, in order to improve the firmness between the pavement layer and the first concrete structure layer, an adhesive layer 11 is provided between the pavement layer and the first concrete structure layer; the adhesive layer is made of water-permeable modified emulsified asphalt.
[0048] In embodiments 1-4, large pieces of crushed stone 12 are filled in the flow channel structure, which not only ensures the structural strength, but also does not affect the water penetration.
[0049] In embodiments 1-4, preferably, the contact surface between the top of the buffer layer and the bottom of the second concrete structure layer is a wavy curved surface, and the buffer layer is a plastic particle permeable concrete layer.
[0050] The above are only preferred embodiments of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the protection scope of the present invention.
Claims
1. The road permeable pavement structure is characterized by: From top to bottom, it includes a pavement layer, a first concrete structure layer, a second concrete structure layer, a buffer layer, and a soil base layer; and a first filter structure and a second filter structure, wherein the first filter structure is arranged between the first concrete structure layer and the second concrete structure layer, and the second filter structure is arranged between the buffer layer and the soil base layer; A flow channel structure and a drainage pipe, wherein the flow channel structure is arranged in the first concrete structure layer and is connected between the pavement layer and the first filter structure; The drainage pipe is arranged in the second concrete structure layer and the buffer layer, and is connected between the first filter structure and the second filter structure; The drainage trough structure is arranged in the soil base layer and is located at the bottom of the second filtering structure. The drainage trough structure is connected with the second filtering structure; the second filtering structure has the function of gathering rainwater to the drainage trough structure.
2. The permeable road pavement structure according to claim 1, characterized in that: A groove is provided at the top of the second concrete structure layer, and the outlets of all the flow channel structures are located directly above the groove; the first filtering structure includes a first impermeable layer paved on the inner wall surface of the groove, a first filter screen paved on the surface of the first impermeable layer, and a sand and gravel layer filling the area of the groove above the first filter screen, and the top ends of all the drainage pipes pass through the first impermeable layer, and the top pipe openings of the drainage pipes are against the lower surface of the first filter screen.
3. The permeable road pavement structure according to claim 2 is characterized in that: A fixed groove is provided at the top of the soil base layer, and the outlets of all the drainage pipes are located directly above the fixed groove; the second filtering structure includes a second impermeable layer paved on the inner wall surface of the fixed groove, and a gravel layer filled in the fixed groove area above the second impermeable layer, the top of the drainage trough structure passes through the second impermeable layer, and the top of the drainage trough is attached to the bottom of the gravel layer.
4. The permeable road pavement structure according to claim 3 is characterized in that: The second anti-seepage layer adopts an inverted trapezoidal structure, and the inner bottom end of the inverted trapezoidal structure is flush with the top end of the drainage ditch structure.
5. The permeable road pavement structure according to claim 1, characterized in that: The drainage trough structure includes a drainage pipe arranged along the length direction of the road surface, a drainage trough fixed at the top of the drainage pipe, a water-permeable hole connecting the drainage trough and the inside of the drainage pipe, and a second filter screen laid in the drainage trough; all of the water-permeable holes are located in the bottom area of the drainage trough, and the size of the second filter screen matches the size of the drainage trough.
6. The permeable road pavement structure according to claim 5, characterized in that: The drainage trough structure also includes reinforcing rods, a plurality of which are fixed on the drainage pipe and form a certain angle with the drainage pipe; the reinforcing rods penetrate the side of the drainage pipe and extend into the soil base layer.
7. The permeable road pavement structure according to claim 3 is characterized in that: The first anti-seepage layer and the second anti-seepage layer are both waterproof geotextile layers.
8. The permeable road pavement structure according to claim 1, characterized in that: A bonding layer is arranged between the pavement layer and the first concrete structure layer; the bonding layer adopts water-permeable modified emulsified asphalt.
9. The permeable road pavement structure according to claim 1, characterized in that: Fill the flow channel structure with large pieces of crushed stone.
10. The permeable road pavement structure according to claim 1, characterized in that: The contact surface between the top of the buffer layer and the bottom of the second concrete structure layer is a wave curved surface, and the buffer layer adopts a plastic particle permeable concrete layer.