CN219709977U - Asphalt pavement self-drainage structure - Google Patents

Abstract

The utility model provides an asphalt pavement self-drainage structure, which comprises a paving layer paved at the upper end of a roadbed, a drainage mechanism arranged on the paving layer and a water seepage mechanism arranged in the paving layer and communicated with the roadbed, wherein the paving layer sequentially comprises a cement stabilized gravel layer, a concrete gradient forming layer, a waterproof bonding layer, a permeable asphalt diversion layer, a permeable bonding layer and a permeable asphalt surface layer from bottom to top, the drainage mechanism comprises curb stones which are arranged at two sides of the paving layer and have drainage functions, and drainage grooves which are arranged at two sides of the upper surface of the paving layer and can collect and drain surface water and lower seepage water; according to the utility model, rainwater can be divided into three parts for diversion, the curb and the drainage groove are used for double-layer collection and drainage of surface water of the pavement, the water seepage mechanism can supplement part of rainwater into underground water, the drainage groove is used for collection and drainage of the lower seepage water, and the drainage capacity of the asphalt pavement, the service life of the pavement and the safety of the pavement are improved.

Description

Asphalt pavement self-drainage structure

Technical Field

The utility model belongs to the technical field of pavement construction, and particularly relates to a self-drainage structure of an asphalt pavement.

Background

Asphalt pavement is various types of pavement paved by mixing road asphalt materials into mineral materials, and asphalt binders improve the capability of paving granules to resist damage to the pavement caused by driving and natural factors, so that the pavement is flat, has less dust, is impermeable to water and is durable. Therefore, asphalt pavement is one of the most widely used advanced pavements in road construction; the permeable asphalt pavement has the advantages of high void ratio, large aggregate content with large particle size, strong cohesiveness, water drainage, capability of rapidly eliminating road surface water films, remarkably improving safety and comfort of driving in rainy days, high anti-skid performance, low noise, water mist inhibition, water drift prevention, glare reduction and the like, and is widely popularized and applied.

At present, when the permeable asphalt pavement rains, rainwater permeates the permeable asphalt pavement and is discharged into underground water along soil at the bottom to supplement the underground water, but due to limited permeable speed of the permeable asphalt pavement, when the permeable speed of the permeable asphalt pavement exceeds that of the permeable asphalt pavement in stormy weather, the rainwater is accumulated on the surface of the permeable asphalt pavement, so that the driving safety is influenced; and in leading into earth with whole rainwater, after the moisture saturation of earth, not only weakened the infiltration ability of earth, still make the road foundation soft, lead to the bearing strength of road surface to descend, not only influence the security that the car was gone on the road surface, still influence life and the reliability on road surface.

Disclosure of Invention

The utility model aims to provide a self-drainage structure of an asphalt pavement, which solves the problems that the permeable asphalt pavement in the prior art has limited drainage capacity, can not drain all the rainwater on the pavement, and the rainwater is easy to soften the roadbed and influence the strength and the use safety of the road when penetrating into the soil of the roadbed.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides an asphalt pavement is from drainage structure, includes the layer of mating formation of laying in the road bed upper end, sets up drainage mechanism on the layer of mating formation and setting in the layer of mating formation and with the seepage water mechanism of road bed intercommunication, the layer of mating formation is cement stable gravel layer, concrete slope formation layer, waterproof adhesive linkage layer, asphalt water conservancy diversion layer that permeates water, tie coat and asphalt surface course that permeates water in proper order from the bottom up, drainage mechanism is including setting up the layer both sides of mating formation and having the curb of drainage function, and offer the both sides of layer upper surface of mating formation, can collect the water drainage tank of emission with top layer water and infiltration water down.

Preferably, the curb is inside to be hollow structure, communicates each other between the adjacent curb, the curb orientation be equipped with a plurality of and inside intercommunication's hole of permeating water on the side of layer one side of mating formation.

Preferably, the water drainage tank is "concave" font, the water drainage tank includes: the water drainage device comprises an inner water drainage groove in a U shape, an outer water drainage groove in the outer part of the inner water drainage groove and in the U shape, and a top plate connected with the inner water drainage groove and the top of the outer water drainage groove, wherein a plurality of water drainage holes are formed in the outer water drainage groove and the adjacent side edge of a paving layer in a penetrating mode, the water drainage groove is located on the upper portion of a waterproof bonding layer, a filter plate is arranged on the upper portion of the inner water drainage groove, and two side edges of the filter plate are erected on the top plate.

Preferably, the water permeable asphalt surface layers adjacent to the two sides of the top of the water drainage groove are inclined downwards.

Preferably, the asphalt surface layer comprises a matched asphalt concrete layer and a drainage asphalt wearing layer which are arranged in a staggered manner along the length direction of the road, and the permeable asphalt guide layer is the drainage asphalt wearing layer.

Preferably, the porosity of the mix grade asphalt concrete layer is 3% -6%, and the porosity of the drainage asphalt wearing layer and the drainage asphalt wearing layer is 18% -25%.

Preferably, the water seepage mechanism comprises a water seepage pipe, one end of the water seepage pipe is communicated with the foundation, the other end of the water seepage pipe sequentially penetrates through the cement stabilized gravel layer, the concrete gradient forming layer, the waterproof bonding layer, the water permeable asphalt diversion layer and the water permeable bonding layer and is communicated with the inside of the water permeable asphalt surface layer, the water seepage pipe is filled with semi-open mixing-level asphalt concrete with the porosity of 6% -10%, and a plurality of water seepage holes are formed in the water seepage pipe in the water permeable asphalt surface layer and the water permeable asphalt diversion layer.

Compared with the prior art, the utility model has the advantages that:

1. according to the utility model, rainwater can be divided into three parts for diversion, the curb and the drainage groove are used for double-layer collection and drainage of the surface water of the road, the permeable asphalt diversion layer, the permeable bonding layer and the permeable asphalt surface layer are arranged to enable the rainwater to quickly permeate into the road, so that the drainage capacity of the asphalt road is improved, the drainage speed is accelerated, the drainage groove and the water seepage mechanism are arranged to shunt the lower seepage water, part of the rainwater flows into the foundation through the water seepage mechanism to supplement the groundwater, and part of the rainwater enters the drainage groove for collection and drainage, so that the phenomenon that excessive rainwater permeates into soil of the road is easy to cause softening of the road is effectively avoided, the strength of the asphalt road is ensured, and the service life and safety of the road are effectively improved;

2. according to the utility model, the concrete gradient forming layer is arranged, so that surface accumulated water of the asphalt pavement can flow out along the pavement in the direction of approaching the curb and the drainage tank, thereby being beneficial to the rapid drainage of the surface accumulated water and effectively avoiding the formation of a pavement water film;

3. according to the utility model, the staggered assembly-level asphalt concrete layer and the drainage asphalt wearing layer are used as the permeable asphalt surface layer, so that the strength of the asphalt pavement is effectively increased while the permeable effect is ensured, the occurrence of scattering particles of the asphalt pavement is effectively reduced, and the service life of the asphalt pavement is further prolonged;

4. by arranging two porous drainage asphalt layers, the thickness of water permeation and sound absorption of the asphalt pavement is effectively increased, the drainage capacity of the asphalt pavement is further improved, and traffic noise is greatly reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered limiting the scope, and that other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a self-draining structure of an asphalt pavement;

FIG. 2 is a schematic view of a curb structure;

FIG. 3 is a schematic diagram of a drain tank structure;

FIG. 4 is a schematic diagram of a water seepage pipe structure;

reference numerals: 1-pavement layer, 2-drainage mechanism, 3-infiltration mechanism, 4-cement stable rubble layer, 5-concrete slope formation layer, 6-waterproof adhesive layer, 7-asphalt water diversion layer that permeates water, 8-bonding layer that permeates water, 9-asphalt surface course that permeates water, 10-curb, 11-water drainage tank, 12-water hole, 13-interior water drainage tank, 14-outer water drainage tank, 15-roof, 16-water drainage hole, 17-filter, 18-mix level asphalt concrete layer, 19-drainage asphalt wearing layer, 20-infiltration pipe, 21-half-open mix level asphalt concrete, 22-infiltration hole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang" and the like, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.

Example 1

As shown in fig. 1, an asphalt pavement self-drainage structure comprises a pavement layer 1 paved at the upper end of a roadbed, a drainage mechanism 2 arranged on the pavement layer 1 and a water seepage mechanism 3 arranged in the pavement layer 1 and communicated with the roadbed, wherein the pavement layer 1 sequentially comprises a cement stabilized gravel layer 4, a concrete gradient forming layer 5, a waterproof bonding layer 6, a permeable asphalt diversion layer 7, a permeable bonding layer 8 and a permeable asphalt surface layer 9 from bottom to top, the drainage mechanism 2 comprises curb stones 10 arranged on two sides of the pavement layer 1 and having a drainage function, and drainage grooves 11 formed on two sides of the upper surface of the pavement layer 1 and capable of collecting and draining surface water and lower water seepage.

The concrete slope forming layer 5 is in a micro-arch shape, the gradient is 2% -3%, and the waterproof bonding layer 6, the permeable asphalt diversion layer 7, the permeable bonding layer 8 and the permeable asphalt surface layer 9 are paved along the gradient, so that the whole paving layer 1 is in a micro-arch shape; rainwater entering the curb 10 and the drainage tank 11 can flow into a municipal rainwater pipeline for unified collection and utilization.

When the rain water meter on part of the pavement is used for meeting rainy weather, under the action of gravity of the rain water meter on part of the pavement, the road slope flows to two sides of the pavement, and the pavement surface water is collected and discharged in a double-layer mode through the curb 10 and the drainage groove 11, part of the rain water infiltrates downwards and sequentially enters the permeable asphalt diversion layer 7, the permeable adhesive layer 8 and the permeable asphalt surface layer 9, the seepage mechanism 3 and the drainage groove 11 are used for shunting the seepage rain water, part of the seepage rain water flows into the foundation to supplement the underground water through the seepage mechanism 3, and part of the seepage rain water flows into the drainage groove 11 along the slope.

Example 2

On the basis of embodiment 1, as shown in fig. 2, the curb stone 10 has a hollow structure, adjacent curb stones 10 are mutually communicated, and a plurality of water permeable holes 12 communicated with the interior are formed in the side surface of the curb stone 10 facing the paving layer 1.

In this embodiment, the contact surface of curb 10 with layer 1 of mating formation still can set up a plurality of protruding structures, and then improves the area of contact between curb 10 and layer 1 of mating formation, and then improves overall structure's intensity, also can set up the filter screen on the hole 12 that permeates water, and then filter and purify the rainwater in getting into curb 10, be convenient for later stage to the collection utilization of rainwater.

Example 3

On the basis of embodiment 1, as shown in fig. 3, the drainage groove 11 is in a shape of a "concave", and the drainage groove 11 includes: the water drainage device comprises an inner water drainage groove 13 in a U shape, an outer water drainage groove 14 in the U shape and connected with the outer water drainage groove 13, and a top plate 15 at the top of the outer water drainage groove 14, wherein a plurality of water drainage holes 16 are formed in the outer water drainage groove 14 and the adjacent side edge of the paving layer 1 in a penetrating mode, the water drainage groove 11 is located on the upper portion of the waterproof bonding layer 6, a filter plate 17 is arranged on the upper portion of the inner water drainage groove 13, and two side edges of the filter plate 17 are erected on the top plate 15.

In the embodiment, the surface water of the asphalt pavement enters the inner drainage groove 13 after impurities are filtered by the filter plates 17, part of the infiltration rainwater flows to the side wall of the outer drainage groove 14 along the gradient, and enters the outer drainage groove 14 through the drainage holes 16, so that the rainwater can be rapidly collected and discharged, the drainage efficiency of the pavement is improved, the accumulated water of the pavement is effectively avoided, and the service life and the reliability of the pavement are improved;

in order to make the pavement surface water better flow into the drainage tank 11, the water permeable asphalt pavement layers 9 adjacent to the two sides of the top of the drainage tank 11 are inclined downwards.

Example 4

On the basis of the embodiment 1, the asphalt surface layer shown in fig. 1 comprises a dense asphalt concrete layer 18 and a drainage asphalt wearing layer 19 which are arranged in a staggered manner along the length direction of the pavement, and the water permeable asphalt guide layer 7 is the drainage asphalt wearing layer 19.

Wherein the porosity of the mix grade asphalt concrete layer 18 is 3% -6%, and the porosity of the drainage asphalt wearing layer 19 and the drainage asphalt wearing layer 19 is 18% -25%.

In the embodiment, the staggered arrangement of the mixed asphalt concrete layer 18 and the drainage asphalt wearing layer 19 can effectively increase the strength of the asphalt pavement while ensuring the water permeability effect, effectively reduce the occurrence of the scattering and particle-dropping condition of the asphalt pavement, and further prolong the service life of the asphalt pavement; the two layers of porous drainage asphalt layers effectively increase the thickness of asphalt pavement for water permeation and sound absorption, further improve the drainage capacity of the asphalt pavement and greatly reduce traffic noise.

Example 5

On the basis of embodiment 1, the water seepage mechanism 3 comprises one end communicated with a foundation, and the other end sequentially passes through the cement stabilized gravel layer 4, the concrete gradient forming layer 5, the waterproof bonding layer 6, the permeable asphalt diversion layer 7 and a plurality of water seepage pipes 20 which are bonded in a permeable manner and are communicated with the inside of the permeable asphalt surface layer 9, the water seepage pipes 20 are filled with semi-open-type mixed-level asphalt concrete 21 with the porosity of 6% -10%, and a plurality of water seepage holes 22 are formed in the water seepage pipes 20 in the permeable asphalt surface layer 9 and the permeable asphalt diversion layer 7.

In this embodiment, rainwater that seeps into the permeable asphalt surface layer 9 and the inner permeable asphalt guide layer 7 can enter the seepage pipe 20 through the seepage holes 22 and the openings at the top of the pipeline, and then slowly seeps into the roadbed by the semi-open-close-level asphalt concrete 21 with the porosity of 6% -10%, thereby playing a role in supplementing groundwater.

Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the utility model, and that those skilled in the art will be understood that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (7)

1. The utility model provides an asphalt pavement self-drainage structure which characterized in that: including lay layer (1) of mating formation on road bed upper end, set up drainage mechanism (2) and setting on layer (1) of mating formation are in layer (1) of mating formation and with water seepage mechanism (3) of road bed intercommunication, layer (1) of mating formation is cement stable gravel layer (4), concrete slope formation layer (5), waterproof adhesive linkage layer (6), asphalt water conservancy diversion layer (7), tie layer (8) and asphalt surface layer (9) permeate water in proper order, and drainage mechanism (2) are including setting up layer (1) both sides and have curb (10) of drainage function of mating formation, and set up both sides of layer (1) upper surface, can collect water drainage tank (11) of emission with top layer water and lower infiltration.

2. The asphalt pavement self-drainage structure according to claim 1, wherein: the road kerbs (10) are hollow structures, adjacent road kerbs (10) are communicated with each other, and a plurality of water permeable holes (12) communicated with the inside are formed in the side face, facing one side of the paving layer (1), of the road kerbs (10).

3. The asphalt pavement self-drainage structure according to claim 1, wherein: the water drainage tank (11) is in a concave shape, and the water drainage tank (11) comprises: the water draining device comprises an inner draining groove (13) which is U-shaped, an outer draining groove (14) which is arranged outside the inner draining groove (13) and is U-shaped, and a top plate (15) which is connected with the inner draining groove (13) and the top of the outer draining groove (14), wherein a plurality of draining holes (16) are formed in the adjacent side edges of the outer draining groove (14) and the paving layer (1) in a penetrating mode, the draining groove (11) is located on the upper portion of the waterproof bonding layer (6), a filter plate (17) is arranged on the upper portion of the inner draining groove (13), and two side edges of the filter plate (17) are arranged on the top plate (15).

4. A self-draining asphalt pavement structure according to claim 3, characterized in that: so that the water permeable asphalt surface layers (9) adjacent to the two sides of the top of the water drainage groove (11) are inclined downwards.

5. The asphalt pavement self-drainage structure according to claim 1, wherein: the asphalt surface layer comprises a dense asphalt concrete layer (18) and a drainage asphalt wearing layer (19) which are arranged in a staggered manner along the length direction of the road, and the permeable asphalt guide layer (7) is the drainage asphalt wearing layer (19).

6. The asphalt pavement self-draining structure according to claim 5, wherein: the porosity of the mix-grade asphalt concrete layer (18) is 3% -6%, and the porosity of the drainage asphalt wearing layer (19) and the drainage asphalt wearing layer (19) is 18% -25%.

7. The asphalt pavement self-drainage structure according to claim 1, wherein: the water seepage mechanism (3) comprises one end and a foundation, the other end sequentially penetrates through the cement stabilization gravel layer (4), the concrete gradient formation layer (5), the waterproof bonding layer (6), the permeable asphalt diversion layer (7) and a plurality of water seepage pipes (20) which are bonded in a permeable manner and are communicated with the inside of the permeable asphalt surface layer (9), the water seepage pipes (20) are filled with semi-open-type mixed-level asphalt concrete (21) with the porosity of 6% -10%, and a plurality of water seepage holes (22) are formed in the water seepage pipes (20) in the permeable asphalt surface layer (9) and the permeable asphalt diversion layer (7).