CN206418364U - A kind of permeable road structure - Google Patents

Abstract

The utility model relates to the technical field of permeable pavements, more specifically a permeable roadbed structure, wherein the graded crushed stones are arranged above the compacted plain soil layer, and the water-stabilized crushed stones layer is arranged above the graded crushed stones, The root-resistance layer is set above the water-stabilized gravel layer, the bottom surface of the shock-absorbing buffer plate is in contact with the root-resistance layer, the bottom surface of the cow felt layer is set on the upper surface of the shock-absorbing buffer plate, and the asphalt pavement layer II is set on the cow felt layer The asphalt pavement layer I is set above the asphalt pavement layer II, the filter layer is set above the asphalt pavement layer I, the void concrete permeable layer is set above the filter layer, and the exposed aggregate permeable pavement is set on the void concrete permeable layer Above, the glass wool sliver is set in the shock-absorbing buffer plate. The permeable roadbed structure has good water permeability, which can effectively prevent water from seeping into the plain soil layer, and ensure that the roadbed will not be damaged. At the same time, it has good frost resistance, strong shock absorption performance, and stable structure.

Description

A permeable roadbed structure

technical field

The utility model relates to the technical field of water-permeable road surfaces, in particular to a water-permeable roadbed structure.

Background technique

The permeable pavement has water permeability, which can quickly eliminate the water accumulation on roads and squares when it rains; when it rains intensively, it can reduce the burden on urban drainage facilities and prevent river flooding and water pollution.

The existing permeable pavement lacks a filter layer, and debris will enter the ground through the pavement, which will damage the permeable pavement. Moreover, the existing permeable pavement has poor shock absorption and poor frost resistance in the north. It is easy to freeze and swell when the weather is cold. Single structure, easy to damage.

Contents of the invention

The technical problem mainly solved by the utility model is: to provide a permeable roadbed structure, which has good water permeability, can effectively prevent water from penetrating into the plain soil layer, and ensure that the roadbed will not be damaged, and at the same time has good frost resistance and shock absorption Strong performance and stable structure.

In order to solve the above technical problems, the utility model relates to the technical field of permeable pavement, more specifically, a permeable roadbed structure, including a permeable pavement with exposed aggregate, a permeable concrete layer with voids, a filter layer, asphalt pavement layer I, asphalt pavement layer II, Cow felt layer, shock-absorbing buffer board, glass wool sliver, root-resistance layer, water-stabilized crushed stone layer, graded crushed stone layer and plain soil compacted layer.

The graded crushed stone is arranged above the plain soil tamping layer, the water-stabilized crushed stone layer is arranged above the graded crushed stone, the root-resistance layer is arranged above the water-stabilized crushed stone layer, and the bottom surface of the shock-absorbing buffer plate is in contact with the The root resistance layer is in contact, the bottom surface of the cow felt layer is set on the upper surface of the shock-absorbing buffer plate, the asphalt pavement layer II is set above the cow felt layer, the asphalt pavement layer I is set above the asphalt pavement layer II, and the filter layer is set on Above the asphalt pavement layer I, the void concrete permeable layer is disposed above the filter layer, the exposed aggregate permeable pavement is disposed above the void concrete permeable layer, and the glass wool strip is disposed in the shock-absorbing buffer plate.

As a further optimization of the technical solution, the material of the filtering layer described in the permeable subgrade structure of the utility model is fine sand with a thickness of 20mm.

As a further optimization of the technical solution, the cross-section of the shock-absorbing buffer plate described in the permeable roadbed structure of the utility model is wavy, and the material of the shock-absorbing buffer plate is hard plastic.

As a further optimization of the technical solution, the material of the root resistance layer described in a permeable subgrade structure of the utility model is high-strength polyethylene.

As a further optimization of the technical solution, the particle size of the water-stabilized gravel layer described in a permeable subgrade structure of the utility model is 30 mm.

The beneficial effects of a permeable subgrade structure of the utility model are as follows:

The utility model relates to a permeable subgrade structure. The permeable subgrade structure has good water permeability, can effectively prevent water from seeping into the plain upper layer, ensures that the subgrade will not be damaged, and has good frost resistance, strong shock absorption performance and stable structure.

Description of drawings

Below in conjunction with accompanying drawing and specific implementation method, the utility model is described in further detail.

Fig. 1 is a structural schematic diagram of a permeable subgrade structure of the present invention.

In the figure: exposed aggregate permeable pavement 1, void concrete permeable layer 2, filter layer 3, asphalt pavement layer I 4, asphalt pavement layer II 5, cow felt layer 6, shock-absorbing buffer plate 7, glass wool sliver 8, root-resistance layer 9. Water stabilized crushed stone layer 10, graded crushed stone layer 11, plain soil compacted layer 12.

detailed description

Specific implementation mode one:

The present embodiment will be described below in conjunction with Fig. 1. The utility model relates to the technical field of permeable pavements, more specifically a permeable roadbed structure, including: a permeable pavement with exposed aggregates 1, a concrete permeable layer with voids 2, a filter layer 3, and an asphalt pavement layer I4, asphalt pavement layer II 5, cow felt layer 6, shock absorbing buffer plate 7, glass wool sliver 8, root resistance layer 9, water stabilized gravel layer 10, graded gravel layer 11 and plain soil compaction layer 12.

The graded crushed stone 11 is arranged above the plain soil compaction layer 12, the water-stabilized crushed stone layer 10 is arranged above the graded crushed stone 11, and the root-blocking layer 9 is arranged above the water-stabilized crushed stone layer 10, reducing The bottom surface of the shock buffer plate 7 is in contact with the root resistance layer 9, the bottom surface of the cow felt layer 6 is arranged on the upper surface of the shock absorber buffer plate 7, the asphalt pavement layer II 5 is arranged on the top of the cow felt layer 6, and the asphalt pavement layer I 4 Set above the asphalt pavement layer II 5, the filter layer 3 is set above the asphalt pavement layer I 4, the void concrete permeable layer 2 is set above the filter layer 3, the exposed aggregate permeable pavement 1 is set above the void concrete permeable layer 2 , The glass wool sliver 8 is arranged in the shock-absorbing buffer plate 7 .

The plain soil tamping layer 12 uses plain soil to tamp the soil foundation to ensure the stability and stability of the subgrade structure and enhance the strength of the subgrade. The graded crushed stone 11 has relatively strong hardness, and the graded crushed stone 11 is laid on the plain soil tamping layer 12 above, improve the hardness of the roadbed, and the road surface will not sink when vehicles pass by the road surface; the water-stabilized gravel layer 10 mainly bears the load on the road, and secondly improves the water stability performance to prevent groundwater from rising and surface water seepage; The root layer 9 is made of high-strength polyethylene with high strength, which can effectively prevent underground plant roots from piercing the permeable subgrade structure, ensure the integrity of the permeable subgrade structure, and prolong the service life of the permeable subgrade structure; the wave-shaped shock absorption Buffer plate 7 has good shock absorption and buffering effect, and when vehicle passes by, wave-shaped shock absorption buffer plate 7 will carry out shock absorption and buffering, improve the stability of vehicle running; Glass wool sliver 8 has the effect of shock absorption on the one hand, Improve the driving stability of the vehicle, on the other hand, it has good antifreeze and heat preservation performance, so as to ensure that the subgrade will not be damaged by freezing; the exposed aggregate permeable pavement 1 and the void concrete permeable layer 2 have good water permeability, ensuring that the water on the pavement will When the water enters the roadbed, it is guaranteed that water will not accumulate on the road surface, and vehicles and pedestrians can flow normally; when water enters the roadbed, under the blocking effect of the cow felt layer 6, it is guaranteed that the water will not seep further, and the water will flow from the cattle The two sides of the felt layer 6 flow out to ensure the smooth dispersion of water without destroying the roadbed. The layers of the permeable subgrade structure are pressed together, with a stable structure and long service life.

Specific implementation mode two:

The present embodiment is described below in conjunction with Fig. 1, and this embodiment is further described to embodiment one, and the material of described filtering layer 3 is fine sand, and its thickness is 20mm, and filtering effect is good, guarantees that sundries do not enter in the subgrade.

Specific implementation mode three:

The present embodiment will be described below in conjunction with FIG. 1 . This embodiment will further describe Embodiment 1. The cross-section of the shock-absorbing buffer plate 7 is wave-shaped, and the material of the shock-absorbing buffer plate 7 is hard plastic.

Specific implementation mode four:

The present embodiment will be described below with reference to FIG. 1 . This embodiment will further describe Embodiment 1. The material of the root blocking layer 9 is high-strength polyethylene.

Specific implementation mode five:

The present embodiment will be described below with reference to FIG. 1 . This embodiment will further describe Embodiment 1. The particle size of the water-stabilized gravel layer 10 is 30 mm.

Of course, the above descriptions are not limitations of the present utility model, and the present utility model is not limited to the above-mentioned examples. Changes, modifications, additions or replacements made by those of ordinary skill in the art within the essential scope of the present utility model also belong to Protection scope of the present utility model.

Claims (5)

1. A permeable subgrade structure, including exposed aggregate permeable pavement (1), void concrete permeable layer (2), filter layer (3), asphalt pavement layer I (4), asphalt pavement layer II (5), cow felt layer (6), shock-absorbing buffer plate (7), glass wool strip (8), root-resistance layer (9), water-stabilized crushed stone layer (10), graded crushed stone layer (11) and plain soil compacted layer (12 ), characterized in that: the graded crushed stone (11) is arranged above the plain compacted layer (12), and the water-stabilized crushed stone layer (10) is arranged above the graded crushed stone layer (11). The root layer (9) is arranged above the water-stabilized gravel layer (10), the bottom surface of the shock-absorbing buffer plate (7) is in contact with the root-resistance layer (9), and the bottom surface of the cow felt layer (6) is arranged on the shock-absorbing buffer On the upper surface of the plate (7), the asphalt pavement layer II (5) is arranged on the top of the cow felt layer (6), the asphalt pavement layer I (4) is arranged on the top of the asphalt pavement layer II (5), and the filter layer (3) Set above the asphalt pavement layer I (4), the void concrete permeable layer (2) is disposed above the filter layer (3), the exposed aggregate permeable pavement (1) is disposed above the void concrete permeable layer (2), and the glass wool Strips (8) are provided in the shock-absorbing bumper (7). 2. A permeable subgrade structure according to claim 1, characterized in that: the filter layer (3) is made of fine sand with a thickness of 20 mm. 3. A permeable subgrade structure according to claim 1, characterized in that: the cross-section of the shock-absorbing buffer plate (7) is wavy, and the material of the shock-absorbing buffer plate (7) is hard plastic. 4. The permeable subgrade structure according to claim 1, characterized in that: the material of the root-resistance layer (9) is high-strength polyethylene. 5. The permeable subgrade structure according to claim 1, characterized in that: the particle size of the water-stabilized gravel layer (10) is 30 mm.