Permeable recycled asphalt mixture pavement structure

Abstract

The utility model provides a permeable recycled asphalt mixture pavement structure. The permeable recycled asphalt mixture pavement structure comprises a soil base layer, the drainage layer is arranged at the top of the soil base layer; the subbase layer is arranged at the top of the drainage layer; the permeable base layer is arranged at the top of the subbase layer; the permeable recycled asphalt mixture lower surface layer is arranged at the top of the permeable base layer. According to the permeable recycled asphalt mixture pavement structure provided by the utility model, the pavement is paved by adopting the permeable recycled asphalt mixture lower surface layer and the permeable recycled asphalt mixture upper surface layer, so that the recycling of waste pavement materials is realized, the resource waste is reduced, and the road construction cost is reduced; and pollution to the ecological environment caused by accumulation of the waste materials can also be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to road surface construction technical field especially relates to a water -permeable recycled asphalt mixture road surface structure. BACKGROUND

[0002] In today's urban construction process, in order to pursue the firmness and flatness of road surface, many cities use cement, asphalt, concrete and other materials to close the ground on a large scale, which replaces the original soil surface, due to the blockage of these closed materials, water is difficult to infiltrate smoothly, when the precipitation comes, rainwater cannot penetrate into the ground as quickly as on the natural soil surface, which will lead to serious waterlogging in the city, causing huge economic losses to the city.

[0003] In order to reduce the occurrence of such situations, water -permeable asphalt is used for road paving, and water -permeable asphalt pavement is also called porous asphalt pavement, which refers to a new type of asphalt concrete surface layer with a void ratio of more than 18% after compaction, which can form a drainage channel inside the mixture.

[0004] The coarse aggregate accounts for more than 80% in the composition of drainage asphalt mixture, and in the long-term traffic operation process, due to the aging of asphalt binder and the repeated action of vehicle load, coarse aggregate scattering and particle loss inevitably occur, when the scattering and particle loss disease reaches a certain degree, the skeleton embedded structure of coarse aggregate loses support, and the scattering and particle loss disease will deteriorate sharply, affecting the comfort and safety of road driving, in this case, the drainage asphalt pavement is usually repaired and maintained by milling and re-paving, which produces a large amount of milling waste, causing waste, and random stacking may pollute the environment and destroy the ecology, and the traditional road surface structure directly guides the rainwater to the soil base layer, and the rainwater is discharged through the water permeability of soil, when a large amount of rainwater flows into the soil base layer in a short time, the water permeability of the soil base layer will be quickly saturated in a very short time, once the soil base layer reaches saturation, its water permeability will decrease sharply, even completely lose the water permeability function, causing rainwater accumulation.

[0005] Therefore, it is necessary to provide a water -permeable recycled asphalt mixture road surface structure to solve the above technical problems. CONTENT OF UTILITY MODEL

[0006] The utility model provides a water -permeable recycled asphalt mixture road surface structure, solves the problem that the maintenance produces more milling waste, which causes waste, and may pollute the environment and destroy the ecology, and the water permeability of soil is limited, causing rainwater accumulation.

[0007] To solve the above technical problems, the utility model provides a water -permeable recycled asphalt mixture road surface structure, which comprises:

[0008] Soil base layer

[0009] a drainage layer disposed on top of the subbase layer;

[0010] a base layer disposed on top of the drainage layer;

[0011] a pervious base layer disposed on top of the base layer;

[0012] a pervious recycled asphalt mixture lower subbase layer disposed on top of the pervious base layer;

[0013] a pervious recycled asphalt mixture upper subbase layer disposed on top of the pervious recycled asphalt mixture lower subbase layer;

[0014] curbs disposed on both sides of the subbase layer, the drainage layer, the base layer, the pervious base layer, the pervious recycled asphalt mixture lower subbase layer and the pervious recycled asphalt mixture upper subbase layer, respectively, the curb having a mounting groove formed on a side surface thereof, an inner side surface of the mounting groove having a partition plate disposed thereon, the partition plate having a plurality of pervious holes formed therein.

[0015] Preferably, the curb has a water storage groove formed therein, the water storage groove being in communication with the pervious holes.

[0016] Preferably, the subbase layer has a middle portion higher than both side portions.

[0017] Preferably, the drainage layer comprises a first geotextile, a plastic film and a second geotextile, the first geotextile being disposed on top of the subbase layer, the plastic film being disposed on top of the first geotextile, the second geotextile being disposed on top of the plastic film, and the second geotextile being disposed on a bottom of the base layer.

[0018] Preferably, the water storage groove has a partition plate disposed on both side surfaces of an inner side surface thereof, the partition plate having a plurality of water leakage plates and a plurality of partition plates disposed on a top thereof, the partition plates and the water leakage plates being in abutment with each other.

[0019] Preferably, each of the water leakage plates has a plurality of through grooves formed therein.

[0020] Preferably, each of the water leakage plates has a filter plate disposed on a bottom thereof, the filter plate being in abutment with a top of the partition plate.

[0021] Compared with the related art, the pervious recycled asphalt mixture pavement structure has the following advantages:

[0022] This utility model provides a permeable recycled asphalt mixture pavement structure. By using a permeable recycled asphalt mixture lower layer and a permeable recycled asphalt mixture upper layer to pave the road, the reuse of waste pavement materials is realized, resource waste is reduced, road construction costs are lowered, and the pollution of the ecological environment caused by waste accumulation can also be avoided.

[0023] By employing a permeable recycled asphalt mixture surface layer and a permeable recycled asphalt mixture sublayer with high porosity, as well as a permeable base course, rainwater can quickly infiltrate into the underlying structural layers, reducing road surface water accumulation. Then, through the internal drainage layer and edge drainage structure, rainwater that permeates the road structure can be quickly collected into the water storage tanks on the side of the road and discharged, further enhancing the permeability of the road surface and preventing rainwater accumulation. Attached Figure Description

[0024] Figure 1 A schematic diagram of the first embodiment of a permeable recycled asphalt mixture pavement structure provided by this utility model;

[0025] Figure 2 for Figure 1 The diagram shows the three-dimensional structure of the curbstone.

[0026] Figure 3 for Figure 1 The enlarged schematic diagram of part A shown below;

[0027] Figure 4 A schematic diagram of the second embodiment of a permeable recycled asphalt mixture pavement structure provided by this utility model;

[0028] Figure 5 for Figure 4 The diagram shows a side cross-sectional view of the structure.

[0029] Numbered in the diagram: 1. Subbase, 2. Drainage layer, 21. First geotextile, 22. Plastic film, 23. Second geotextile, 3. Curbstone, 31. Water storage tank, 32. Installation groove, 33. Partition, 34. Permeable hole, 4. Subbase, 5. Permeable base, 6. Lower layer of permeable recycled asphalt mixture, 7. Upper layer of permeable recycled asphalt mixture, 8. Partition, 81. Filter plate, 82. Drainage plate, 83. Through groove, 84. Separator. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] First Embodiment

[0032] Please refer to the following: Figure 1 , Figure 2 , Figure 3 ,in,Figure 1 A structural diagram of a first embodiment of a water-permeable recycled asphalt mixture pavement structure provided by the utility model is shown in the figure; Figure 2 A Figure 1 A curbstone three-dimensional structure diagram is shown in the figure; Figure 3 A Figure 1 An A part enlarged diagram is shown in the figure. A water-permeable recycled asphalt mixture pavement structure comprises: a soil base layer 1;

[0033] A drainage layer 2 is arranged on the top of the soil base layer 1;

[0034] A bottom base layer 4 is arranged on the top of the drainage layer 2;

[0035] A water-permeable base layer 5 is arranged on the top of the bottom base layer 4;

[0036] A water-permeable recycled asphalt mixture lower layer 6 is arranged on the top of the water-permeable base layer 5;

[0037] A water-permeable recycled asphalt mixture upper layer 7 is arranged on the top of the water-permeable recycled asphalt mixture lower layer 6;

[0038] Curbstones 3 are arranged on both sides of the soil base layer 1, the drainage layer 2, the bottom base layer 4, the water-permeable base layer 5, the water-permeable recycled asphalt mixture lower layer 6 and the water-permeable recycled asphalt mixture upper layer 7 respectively, and mounting grooves 32 are formed in the side surfaces of the curbstones 3, the inner side surfaces of the mounting grooves 32 are provided with partitions 33, and a plurality of water-permeable holes 34 are formed in the interiors of the partitions 33.

[0039] The soil base layer 1 is improved in strength and stability by compaction and replacement, and meanwhile, the soil base layer is ensured to have a certain water permeability;

[0040] The drainage layer 2 is composed of two geotextiles and a plastic film 22, which can prevent fine particles in the soil from being washed away by water flow, thereby reducing seepage caused by soil loss;

[0041] The curbstones 3 are arranged on both sides of the soil base layer 1, and water storage grooves 31 are formed in the interiors of the curbstones 3, so that rainwater can be quickly collected and discharged, and rainwater accumulation is avoided;

[0042] The bottom base layer 4 can be semi-rigid materials such as stabilized macadam or lime-fly ash stabilized macadam after crushing of original cement pavement, which has high strength and stability, can bear vehicle load transmitted by the pavement, and provides a solid foundation for the entire pavement structure;

[0043] The water-permeable base layer 5 is made of large-particle water-permeable asphalt mixture (LSPM) or graded gravel, and the thickness of the water-permeable base layer 5 is generally 15-25 cm, which mainly provides stable support for the pavement and rapidly drains the rainwater permeating through the surface layer;

[0044] The upper water-permeable recycled asphalt mixture layer 7 is made of recycled asphalt mixture with high porosity, and the porosity is generally between 15% and 25%, which can rapidly permeate the rainwater to the underlying structural layer;

[0045] The lower water-permeable recycled asphalt mixture layer 6 is also made of recycled asphalt mixture, but the porosity can be slightly lower than that of the upper layer, generally between 10% and 15%;

[0046] The upper water-permeable recycled asphalt mixture layer 7 and the lower water-permeable recycled asphalt mixture layer 6 are both made of recycled asphalt mixture, which is made of recycled old asphalt pavement material through crushing, screening, adding new binder and aggregate, etc., which realizes the reuse of resources and has good water permeability.

[0047] The inside of the curb 3 is provided with a water storage groove 31, and the inside of the water storage groove 31 and the inside of the water-permeable hole 34 are in communication.

[0048] The top of the soil base layer 1 is high in the middle and low on both sides.

[0049] The drainage layer 2 comprises a first geotextile 21, a plastic film 22 and a second geotextile 23, the first geotextile 21 is arranged on the top of the soil base layer 1, the plastic film 22 is arranged on the top of the first geotextile 21, the second geotextile 23 is arranged on the top of the plastic film 22, and the second geotextile 23 is arranged on the bottom of the bottom base layer 4.

[0050] The working principle of the water-permeable recycled asphalt mixture pavement structure is as follows:

[0051] When in use, the soil base layer 1 is first compacted, then grooves for the curb 3 are excavated on both sides of the soil base layer 1, so that the curb 3 is installed, then the drainage layer 2 is laid on the top of the soil base layer 1, and then the bottom base layer 4 is laid on the top of the drainage layer 2, and then the water-permeable base layer 5, the lower water-permeable recycled asphalt mixture layer 6 and the upper water-permeable recycled asphalt mixture layer 7 are sequentially laid from bottom to top.

[0052] Compared with the related art, the water-permeable recycled asphalt mixture pavement structure has the following beneficial effects:

[0053] By adopting the water-permeable recycled asphalt mixture lower layer 6 and the water-permeable recycled asphalt mixture upper layer 7, the waste road surface materials are reused, the resource waste is reduced, the road construction cost is reduced, and the pollution to the ecological environment caused by waste accumulation can be avoided.

[0054] By adopting the water-permeable recycled asphalt mixture upper layer 7 and the water-permeable recycled asphalt mixture lower layer 6 with high porosity and the water-permeable base layer 5, rainwater can rapidly penetrate into the underlying structural layer to reduce the road surface water, and then the rainwater penetrating through the road surface structure can be rapidly collected into the water storage tank 31 at the side edge of the road surface and discharged through the drainage layer 2 and the edge drainage structure arranged inside, so that the water permeability of the road surface is further enhanced, and rainwater accumulation is avoided.

[0055] Second embodiment

[0056] Please refer to Figure 4 and Figure 5 , based on the water-permeable recycled asphalt mixture pavement structure provided by the first embodiment of the application, the second embodiment of the application provides another water-permeable recycled asphalt mixture pavement structure. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the separate implementation of the first embodiment.

[0057] Specifically, the water-permeable recycled asphalt mixture pavement structure provided by the second embodiment of the application is different in that a water-permeable recycled asphalt mixture pavement structure is provided, and a partition plate 33 is arranged on both sides of the inner side of the water storage tank 31, and a plurality of water leakage plates 82 and a plurality of partition plates 84 are arranged on the top of the partition plate 33, and the end surfaces of the partition plates 84 and the water leakage plates 82 are in abutment.

[0058] A plurality of through grooves 83 are formed in the interiors of the plurality of water leakage plates 82.

[0059] A filter plate 81 is arranged at the bottom of each of the plurality of water leakage plates 82, and the bottom of the filter plate 81 is in abutment with the top of the partition plate 8.

[0060] By arranging the filter plate 81 at the bottom of the water leakage plate 82, impurities can be prevented from falling into the inner side of the water storage tank 31. When the filter plate 81 is made of metal, the filter plate 81 is directly prefabricated at the bottom of the water leakage plate 82 during the processing of the water leakage plate 81, and the water leakage plate 81 is made of concrete.

[0061] The working principle of the water-permeable recycled asphalt mixture pavement structure provided by the application is as follows:

[0062] In the process of using, the partition plate 8 and the water leakage plate 82 are evenly laid on the top of the partition plate 8, and in the subsequent use, the rainwater of the road surface flows into the inner side of the through groove 83, then flows into the inner side of the water storage groove 31 through the filter plate 81, and then is discharged by the water storage groove 31.

[0063] Compared with the related art, the water-permeable recycled asphalt mixture pavement structure has the following beneficial effects:

[0064] Through the cooperation of the partition plate 8, the filter plate 81, the water leakage plate 82, the through groove 83 and the partition plate 84, when the rainwater cannot penetrate into the ground in time, the rainwater can flow to the roadside, then enters the inner side of the water storage groove 31 through the through groove 83, thereby increasing the drainage effect.

[0065] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, is also included in the patent protection range of the present application.

Claims

1. A pervious type recycled asphalt mixture pavement structure, characterized by, Include: The soil base layer; The drainage layer, which is provided on the top of the soil base layer; The bottom base layer, which is provided on the top of the drainage layer; The permeable base layer, which is provided on the top of the bottom base layer; The permeable recycled asphalt mixture lower layer, which is provided on the top of the permeable base layer; The permeable recycled asphalt mixture upper layer, which is provided on the top of the permeable recycled asphalt mixture lower layer; The curb, which is provided on both sides of the soil base layer, the drainage layer, the bottom base layer, the permeable base layer, the permeable recycled asphalt mixture lower layer and the permeable recycled asphalt mixture upper layer respectively, the side of the curb is provided with a mounting groove, the inner side of the mounting groove is provided with a partition plate, and the inside of the partition plate is provided with a plurality of water permeable holes.

2. A pervious type recycled asphalt mixture pavement structure according to claim 1, characterized in that, The inside of the curb is provided with a water storage groove, and the inside of the water storage groove and the inside of the water permeable hole are communicated.

3. The pervious recycled asphalt mixture pavement structure according to claim 1, characterized in that, The top of the soil base layer is high in the middle and low on both sides.

4. The pervious recycled asphalt mixture pavement structure according to claim 1, characterized in that, The drainage layer includes a first geotextile, a plastic film and a second geotextile, the first geotextile is provided on the top of the soil base layer, the plastic film is provided on the top of the first geotextile, and the second geotextile is provided on the top of the plastic film, and the second geotextile is provided on the bottom of the bottom base layer.

5. A pervious type recycled asphalt mixture pavement structure according to claim 2, characterized in that, The two sides of the inner side of the water storage groove are provided with partition plates, the top of the partition plate is provided with a plurality of water leakage plates and a plurality of partition plates, and the end surface of the partition plate and the water leakage plate abuts.

6. A pervious type recycled asphalt mixture pavement structure according to claim 5, characterized in that, The inside of a plurality of the water leakage plates is provided with a plurality of through grooves.

7. A pervious type recycled asphalt mixture pavement structure according to claim 6, characterized in that, The bottom of a plurality of the water leakage plates is provided with a filter plate, and the bottom of the filter plate abuts the top of the partition plate.

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