CN211256533U - Drainage and noise reduction asphalt pavement structure - Google Patents
Drainage and noise reduction asphalt pavement structure Download PDFInfo
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- CN211256533U CN211256533U CN201921728508.8U CN201921728508U CN211256533U CN 211256533 U CN211256533 U CN 211256533U CN 201921728508 U CN201921728508 U CN 201921728508U CN 211256533 U CN211256533 U CN 211256533U
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Abstract
The utility model discloses a drainage is fallen asphalt pavement structure of making an uproar, including the ground basic unit, the ground basic unit upwards is metalling, close-graded asphalt concrete layer and porous asphalt concrete layer in proper order, mix the slaked lime granule in the porous asphalt concrete layer, is located the both sides on metalling, close-graded asphalt concrete layer and porous asphalt concrete layer just are located the top of ground basic unit is provided with the water-collecting layer, close-graded asphalt concrete layer's thickness is greater than porous asphalt concrete layer's thickness. The porous pavement enables the sound wave transmission process to generate larger displacement, and the noise reduction effect of the pavement is improved.
Description
Technical Field
The utility model relates to a municipal construction technical field especially relates to bituminous paving structure of making an uproar falls in drainage.
Background
The most part of urban noise comes from the noise that the vehicle produced on the urban road, and the vehicle not only can produce the noise when the operation, and the pump gas phenomenon that produces between vehicle and the road surface also can produce the noise, and the quality of life of city citizen has seriously been influenced in the production of these noises.
At present, chinese patent No. CN206319218U discloses a durable noise reduction road surface structure. The pavement structure comprises a rubber asphalt stress absorption layer, a bonding layer and an SBS modified emulsified asphalt wearing layer which are sequentially paved from bottom to top; the rubber asphalt stress absorbing layer is connected to the upper surface of the original pavement; the thickness of the rubber asphalt stress absorbing layer (2) is 5-10 mm; the bonding layer (3) is formed by spraying SBS modified emulsified asphalt, and the spraying amount is 0.3-0.6L/square meter. The thickness of the SBS modified emulsified asphalt abrasion layer (4) is 8-15 mm. The addition of the rubber powder improves the high stability and the noise reduction performance of the pavement.
The technical scheme has the following defects: the rubber powder is mixed in the asphalt concrete, so that the fatigue resistance of the concrete is favorably improved, and the noise reduction performance effect is weaker, so that the noise reduction performance of the pavement is to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a bituminous paving structure of making an uproar falls in drainage, porous road surface make the sound wave transmission process take place great displacement, have improved the noise reduction effect on road surface.
The technical purpose of the utility model is realized through following technical scheme:
asphalt pavement structure of making an uproar falls in drainage, including the foundation of the ground, the foundation of the ground upwards is metalling, dense level asphalt concrete layer and porous asphalt concrete layer in proper order, mix the slaked lime granule in the porous asphalt concrete layer, be located the both sides on metalling, dense level asphalt concrete layer and porous asphalt concrete layer just are located the top of foundation of the ground is provided with the water-collecting layer, dense level asphalt concrete layer's thickness is greater than porous asphalt concrete layer's thickness.
Through the technical scheme, the surface of the porous asphalt concrete layer is provided with the pores which are mutually communicated in a staggered manner, and the road surface with the pores can interfere the transmission of sound waves after the sound waves of the tires on the road surface contact the road surface, so that the sound waves generate larger displacement, a better noise reduction effect can be achieved, and the structural strength of the porous concrete can be enhanced by the slaked lime particles; in addition, rainwater on the road surface can flow into the dense asphalt concrete layer through the pores of the porous asphalt concrete, then flows into the gravel layer from the dense asphalt concrete layer, finally enters the water collecting layer, and further achieves a better drainage effect.
The utility model discloses further set up to: and a waterproof adhesive layer is arranged between the foundation layer and the gravel layer.
Through above-mentioned technical scheme, the setting up of waterproof adhesion layer can reduce the rainwater entering basement layer in the metalling, and then can reduce the basement layer and receive the rainwater and take place the condition emergence of sinking.
The utility model discloses further set up to: and a bonding layer is arranged between the dense asphalt concrete layer and the porous asphalt concrete layer.
Through above-mentioned technical scheme, the tie coat is favorable to making better adhesion between close-graded asphalt concrete layer and the porous asphalt concrete layer, and in addition, when needs are repaired and are changed porous asphalt concrete layer, the tie coat also can reduce the structure to close-graded asphalt concrete layer and cause the destruction.
The utility model discloses further set up to: the one side that the tie coat is close to porous asphalt concrete layer is provided with the bonding arch, the bonding arch is a plurality of and evenly distributed.
Through above-mentioned technical scheme, the bellied area of contact that has increased adhesive linkage and porous asphalt concrete that sets up of bonding is favorable to the bonding between dense level asphalt concrete layer and the porous asphalt concrete layer more.
The utility model discloses further set up to: and rubber particles protruding out of the pavement are arranged on one side of the porous asphalt concrete layer, which is far away from the dense asphalt concrete layer.
Through above-mentioned technical scheme, being provided with of rubber granule does benefit to the contact between tire and the porous asphalt concrete layer surface on the buffering road surface to can reduce and cause the damage to porous asphalt concrete layer, be favorable to increase of service life.
The utility model discloses further set up to: the surface of the foundation layer, which is abutted against the water collecting layer, is an inclined surface, and one side of the foundation layer, which is close to the crushed stone layer, is higher than one side of the crushed stone layer.
Through above-mentioned technical scheme, being provided with on inclined plane does benefit to the rainwater refluence that reduces in the water collecting layer to the metalling in, guarantees that the rainwater is normal flows out from the metalling.
The utility model discloses further set up to: the surface of the slaked lime particles is smooth and dry before being mixed with the porous asphalt concrete.
Through the technical scheme, the smooth and dry slaked lime particles can be better adhered to the porous asphalt concrete, and the possibility that the slaked lime particles fall off from the porous asphalt concrete is reduced.
The utility model discloses further set up to: the particle diameter of the crushed stone layer is larger than 0.5 mm.
Through above-mentioned technical scheme, select for use the rubble that the particle diameter is greater than 0.5mm to constitute the metalling, can guarantee the quick infiltration of rainwater for the rainwater can flow in the metalling fast, and during the flow inflow water-collecting layer, the possibility that the rainwater takes place ponding in the metalling is reduced.
To sum up, the utility model discloses a beneficial technological effect does:
1. through setting up porous asphalt concrete and metalling to and thoughtlessly have the lime hydrate granule in with porous asphalt concrete, porous asphalt concrete layer's surface has the pore of crisscross intercommunication each other, behind the tire sound wave contact road surface on the road surface, the transmission of sound wave can be interfered on the road surface that has the pore, thereby makes the sound wave produce great displacement, and then can reach better noise reduction, and the structural strength of porous concrete can be strengthened to the lime hydrate granule.
2. Through setting up waterproof adhesion layer, can reduce the rainwater in the metalling and get into the basement layer, and then can reduce the basement layer and receive the rainwater and take place the condition emergence of sinking.
3. Through setting up the tie coat, be favorable to making better adhesion between close-graded asphalt concrete layer and the porous asphalt concrete layer, in addition, when needs are repaired and are changed porous asphalt concrete layer, the tie coat also can reduce the structure to close-graded asphalt concrete layer and cause the destruction.
Drawings
FIG. 1 is a schematic layer structure diagram of the present invention, mainly illustrating the layer structure of an asphalt pavement;
fig. 2 is a schematic view of the structure of the adhesive layer of fig. 1.
Reference numerals: 1. a ground layer; 2. a crushed stone layer; 3. a dense asphalt concrete layer; 4. a porous asphalt concrete layer; 41. slaked lime particles; 42. rubber particles; 5. a water collection layer; 6. a waterproof adhesive layer; 7. a bonding layer; 71. and (6) bonding the bumps.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Asphalt pavement structure of making an uproar falls in drainage, as shown in figure 1, including the foundation layer 1, foundation layer 1 upwards is waterproof adhesive layer 6, metalling 2, close level asphalt concrete layer 3, tie coat 7, porous asphalt concrete layer 4 and water collection layer 5 in proper order, and water collection layer 5 is located waterproof adhesive layer 6, metalling 2, close level asphalt concrete layer 3, tie coat 7, porous asphalt concrete layer 4's both sides and is located the top of foundation layer 1.
As shown in fig. 1, the ground layer 1 is formed by piling up earth, the width of the ground layer 1 is greater than the width of the waterproof adhesive layer 6, the one side of the ground layer 1 abutting against the water collecting layer 5 is a slope, and the side close to the gravel layer 2 is higher than the side far away from the gravel layer 2. The waterproof adhesive layer 6 is laid on the upper surface of the foundation layer 1, and the waterproof adhesive layer 6 can prevent rainwater from entering the foundation layer 1, so that damage of the rainwater to the foundation layer 1 is reduced, and the possibility of collapse of the foundation layer 1 is reduced; the gravel layer 2 is formed by paving gravel, and the gravel with the particle diameter larger than 0.5mm is selected for paving, so that rainwater can flow in the gravel layer 2 quickly and flow into the water collecting layer 5, the possibility of water accumulation of the rainwater in the gravel layer 2 is reduced, and the thickness of the gravel layer 2 is larger than that of the waterproof adhesive layer 6; the density of the dense asphalt concrete layer 3 is high, and the dense asphalt concrete is poured on one surface of the gravel layer 2 far away from the waterproof adhesive layer 6; the thickness of the bonding layer is smaller than that of the dense asphalt concrete layer 3, the bonding layer is paved on one surface, far away from the gravel layer 2, of the dense asphalt concrete layer 3, the bonding layer 7 is favorable for enabling the dense asphalt concrete layer 3 and the porous asphalt concrete layer 4 to be bonded better, and in addition, when the porous asphalt concrete layer 4 needs to be repaired and replaced, the bonding layer 7 can also reduce damage to the structure of the dense asphalt concrete layer 3; the density of the porous asphalt concrete layer 4 is small, the porous asphalt concrete layer 4 is laid above the bonding layer 7, the porous asphalt concrete layer 4 is mixed with the slaked lime particles 41, the surface of the slaked lime particles 41 is smooth and dry before being mixed with the porous asphalt concrete, the slaked lime particles 41 can enhance the structural strength of the porous concrete, and the thickness of the dense-grade asphalt concrete layer 3 is larger than that of the porous asphalt concrete layer 4. The surface of the porous asphalt concrete layer 4 is provided with the pores which are communicated in a mutually staggered manner, and after the sound waves of the tires on the road surface contact the road surface, the road surface with the pores can interfere the transmission of the sound waves, so that the sound waves generate large displacement, and a good noise reduction effect can be achieved.
As shown in fig. 1, the porous asphalt concrete layer 4 is provided with a plurality of rubber particles 42 protruding from the road surface on the side away from the dense asphalt concrete layer 3, and the rubber particles 42 are uniformly distributed. The rubber particles 42 are made of soft materials, and are favorable for buffering the contact between the tire on the road surface and the surface of the porous asphalt concrete layer 4, so that the damage to the porous asphalt concrete layer 4 can be reduced, and the service life can be prolonged.
As shown in fig. 2, the bonding protrusions 71 are arranged on one side of the bonding layer 7 close to the porous asphalt concrete layer 4, the bonding protrusions 71 are uniformly distributed, the contact area between the bonding layer and the porous asphalt concrete is increased by the arrangement of the bonding protrusions 71, and the bonding between the dense asphalt concrete layer 3 and the porous asphalt concrete layer 4 is facilitated.
The concrete working principle is that rainwater on the road surface flows into the dense asphalt concrete layer 3 through the pores of the porous asphalt concrete, then flows into the gravel layer 2 from the dense asphalt concrete layer 3, and finally enters the water collecting layer 5, so that a better drainage effect is achieved. In addition, the surface of porous asphalt concrete layer 4 has the hole of mutual crisscross intercommunication, and after the tire sound wave on the road surface contacted the road surface, the road surface that has the hole can interfere the transmission of sound wave to make the sound wave produce great displacement, and then can reach better noise reduction effect.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. Drainage noise reduction bituminous paving structure, including basement layer (1), its characterized in that: the ground base layer (1) upwards is gravel layer (2), dense asphalt concrete layer (3) and porous asphalt concrete layer (4) in proper order, mix in porous asphalt concrete layer (4) lime hydrate granule (41), is located the both sides of gravel layer (2), dense asphalt concrete layer (3) and porous asphalt concrete layer (4) and be located the top of ground base layer (1) is provided with water-collecting layer (5), the thickness of dense asphalt concrete layer (3) is greater than the thickness of porous asphalt concrete layer (4).
2. The asphalt pavement structure with water drainage and noise reduction functions of claim 1, wherein: and a waterproof adhesive layer (6) is arranged between the foundation layer (1) and the gravel layer (2).
3. The asphalt pavement structure with water drainage and noise reduction functions of claim 1, wherein: and a bonding layer (7) is arranged between the dense asphalt concrete layer (3) and the porous asphalt concrete layer (4).
4. The asphalt pavement structure with water drainage and noise reduction functions of claim 3, wherein: the bonding layer (7) is close to one side of the porous asphalt concrete layer (4) is provided with bonding protrusions (71), and the bonding protrusions (71) are distributed uniformly and in a plurality.
5. The asphalt pavement structure with water drainage and noise reduction functions of claim 1, wherein: and rubber particles (42) protruding out of the pavement are arranged on one side, away from the dense asphalt concrete layer (3), of the porous asphalt concrete layer (4).
6. The asphalt pavement structure with water drainage and noise reduction functions of claim 1, wherein: the foundation layer (1) with the one side of catchment layer (5) butt is the inclined plane, and is close to one side of metalling (2) is higher than keeps away from one side of metalling (2).
7. The asphalt pavement structure with water drainage and noise reduction functions of claim 1, wherein: the slaked lime particles (41) are smooth and dry on the surface before being mixed with the porous asphalt concrete.
8. The asphalt pavement structure with water drainage and noise reduction functions of claim 1, wherein: the particle diameter of the crushed stone layer (2) is more than 0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921728508.8U CN211256533U (en) | 2019-10-15 | 2019-10-15 | Drainage and noise reduction asphalt pavement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921728508.8U CN211256533U (en) | 2019-10-15 | 2019-10-15 | Drainage and noise reduction asphalt pavement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211256533U true CN211256533U (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921728508.8U Active CN211256533U (en) | 2019-10-15 | 2019-10-15 | Drainage and noise reduction asphalt pavement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211256533U (en) |
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2019
- 2019-10-15 CN CN201921728508.8U patent/CN211256533U/en active Active
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