CN206692972U - A kind of porous asphalt pavement structure for bus rapid transit track - Google Patents
A kind of porous asphalt pavement structure for bus rapid transit track Download PDFInfo
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- CN206692972U CN206692972U CN201720036593.6U CN201720036593U CN206692972U CN 206692972 U CN206692972 U CN 206692972U CN 201720036593 U CN201720036593 U CN 201720036593U CN 206692972 U CN206692972 U CN 206692972U
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Abstract
The utility model provides a kind of porous asphalt pavement structure for bus rapid transit track, sequentially consists of subjacent bed, sub-layer, water-proof tack coat, drainage blanket and surface peening layer.The utility model proposes porous asphalt pavement structure, there is draining, antiskid, noise reduction, the function of surface such as anti-dazzle, and there is excellent durability, be a kind of safety, comfortably, the asphalt pavement structure of long-life.Wherein, drainage blanket can be discharged to road surfaces ponding rapidly, reduce the generation of road surface Moisture Damage；Not only increase rainy day car visibility, hence it is evident that improve road conditions identification distance, and rainy day braking distance is greatly shortened；Also having reduces noise, mitigates outstanding advantages of dazzle；Meanwhile increase surface peening layer and can effectively suppress because porous asphalt pavement caused by quick public transport vehicle fixed point brake disperses the phenomenon of grain, to strengthen the anti-ability of dispersing of Permeable asphalt mixtures, extend the service life of porous asphalt pavement.
Description
Technical field
The utility model belongs to field of road, and in particular to a kind of pavement structure for bus rapid transit track.
Background technology
For urban road congestion, the present situation of period traffic system overload operation on and off duty, bus rapid transit (BRT) track
Arise at the historic moment.Its form is similar to common public transport, but its transporting power is close to track traffic, and invests and operation cost is compared with track
Traffic is low, and the construction period is short, quick, is a kind of public transport pattern that current international traffic engineering circles are widelyd popularize,
Also paid much attention in China.
Rainy season and spring melt season, and Water Damage is most common phenomenon, including pit, it is loose, fall grain, check crack etc..Water stops
In road surfaces, under vehicular load repeated action, capillary flowing pressure is larger, easily makes asphalt stripping, and driving vehicle takes away aggregate,
Cause pit-hole.Road table ponding also result in knock into the back, water drift etc. traffic accident generation.Therefore, bus rapid transit (BRT) track is to drip
The drainage performance on blue or green road surface has higher requirement.
Utility model content
(1) technical problem solved
For the weak point of this area, the purpose of this utility model is the drainage asphalt road for providing a kind of surface peening
Face structure, its key problem in technology are that drainage is combined with durability, have the function of surface such as draining, antiskid, noise reduction, anti-dazzle, and
And there is excellent anti-performance of dispersing.
(2) technical scheme
One kind be used for bus rapid transit (BRT, bus rapid transit) track porous asphalt pavement structure, from it is lower to
On be followed successively by subjacent bed, sub-layer, water-proof tack coat, drainage blanket and surface peening layer.
For porous asphalt pavement using having more than 18% voidage, the asphalt of skeleton-gap structure does upper layer,
Water stream channel can be moved to inside road surface, reach the rapid purpose for being discharged to road surfaces ponding.Rainy day driving energy can be increased
Degree of opinion, significantly shorten rainy day braking distance, ensure the security of rainy day driving.
Meanwhile increase surface peening layer can effectively suppress due to drainage asphalt caused by quick public transport vehicle fixed point brake
Road surface is dispersed the phenomenon of grain, strengthens the anti-ability of dispersing of Permeable asphalt mixtures, extend porous asphalt pavement uses the longevity
Life.
Wherein, described surface peening layer is individual layer or bilayer；
The surface peening thickness degree of the individual layer is 0.3~1.2mm, and it is water-based high score to form surface peening layer material therefor
One kind of sub- modified emulsifying asphalt emulsion, alpha-cyanoacrylate resinae adhesive class material or neoprene-phenolic aldehyde gluing class material,
The aqueous high molecular modified emulsifying asphalt emulsion is emulsified asphalt modified with water-epoxy resin, waterborne polyurethane modified emulsification drip
Blue or green or aqueous acrylic modified emulsified asphalt；
Double-deck surface peening thickness degree is 0.5~2mm, and the surface peening layer material therefor on upper strata is water-based high score
One kind of sub- modified emulsifying asphalt emulsion, alpha-cyanoacrylate resinae adhesive class material or neoprene-phenolic aldehyde gluing class material；
The surface peening layer of lower floor is that SBS and/or SBR modified emulsifying asphalts or aqueous high molecular modified emulsifying asphalt emulsion are formed；
The aqueous high molecular modified emulsifying asphalt emulsion is emulsified asphalt modified with water-epoxy resin, waterborne polyurethane modified emulsification drip
Blue or green or aqueous acrylic modified emulsified asphalt.
Further, described drainage blanket thickness is 3~12cm, is open gradation asphalt structure, and its voidage is
18%~25%, infiltration coefficient is more than 3000ml/min.
Wherein, the water-proof tack coat is one in modified heated bitumen layer, modified emulsifying asphalt layer or crushed stone sealing structure
Kind.
According to the conventional form of construction work in this area, water-proof tack coat realizes water-proof binding effect, and its thickness, which is not done, to be had
Body limits.
Wherein, the sub-layer thickness is 5~20cm, is dense bitumen mixture structure.The making of sub-layer can be pressed
According to existing《Standard specification for construction and acceptance of highway asphalt pavement》Implement.
Wherein, described subjacent bed is the structure of roadbed, underlayment and basic unit's combination, on roadbed successively making underlayment and
Basic unit；Or described subjacent bed is the combining structure of floorings, waterproof layer and tack coat, and waterproof is set gradually on floorings
Layer and tack coat.
One of optimal technical scheme of the present utility model is：Described subjacent bed is roadbed, underlayment and the road of basic unit
Combining structure, wherein the underlayment is lime-sand-clay mixture underlayment, thickness is 15~20cm；The thickness of basic unit be 18~
45cm, the basic unit are framework compact type semi-rigid type base or flexbile base.
Another optimal technical scheme of the present utility model is：Described subjacent bed is floorings, waterproof layer and tack coat
Deck paving combining structure, wherein the material of the waterproof layer is Epoxy resin waterproof material, thickness is 0.01~0.5mm；
The material of the tack coat is bituminous epoxy binding material, and thickness is 0.1~1mm.
(3) beneficial effect
The utility model proposes porous asphalt pavement structure, there is draining, antiskid, noise reduction, the function of surface such as anti-dazzle, and
And there is excellent durability, it is a kind of safety, the comfortable, asphalt pavement structure of long-life.Wherein, drainage blanket can be arranged rapidly
From road surfaces ponding, the generation of road surface Moisture Damage is reduced；Not only increase rainy day car visibility, hence it is evident that road conditions identification distance is improved,
And rainy day braking distance is greatly shortened；Also having reduces noise, mitigates outstanding advantages of dazzle；Meanwhile it is strong to increase surface
Changing layer can effectively suppress because porous asphalt pavement caused by quick public transport vehicle fixed point brake disperses the phenomenon of grain, enhancing
The anti-ability of dispersing of Permeable asphalt mixtures, extend the service life of porous asphalt pavement.
Brief description of the drawings
Fig. 1 is the profile of bus rapid transit (BRT) track porous asphalt pavement structure of the utility model embodiment 1；
Fig. 2 is the profile of bus rapid transit (BRT) track porous asphalt pavement structure of the utility model embodiment 2；
In figure, 1:Surface peening layer；101：The upper strata of surface peening layer, 102：The lower floor of surface peening layer；2：Drainage blanket；
3：Water-proof tack coat；4：Sub-layer；5：Subjacent bed.
Embodiment
Following examples are used to illustrate the utility model, but are not limited to the scope of the utility model.Without departing substantially from this
In the case of utility model spirit and essence, the modifications or substitutions made to the utility model method, step or condition belong to
The scope of protection of the utility model.
, it is necessary to explanation, term " on ", " under ", "front", "rear", " top ", " bottom " in description of the present utility model
The orientation or position relationship of the instructions such as " interior ", " outer " are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
State the present invention and simplify description, rather than indicate or imply that signified device or element there must be specific orientation, with specific
Azimuth configuration and operation, it is impossible to be interpreted as limitation of the present invention.
Unless otherwise specified, the conventional meanses that technological means used in embodiment is known to those skilled in the art.
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail.
Embodiment 1
As shown in figure 1, a kind of bus rapid transit (BRT) track drainage asphalt pavement structure, making is on subjacent bed 5；From
Subjacent bed 5 is upward, is followed successively by sub-layer 4, water-proof tack coat 3, drainage blanket 2 and surface peening layer 1.
Wherein, the subjacent bed 5 is roadbed, underlayment and the road of basic unit combining structure.Making base successively on roadbed
Layer and basic unit；The underlayment is thick 20cm lime-sand-clay mixture underlayment；The basic unit is thick 40cm fly ash lime stabilized crushed rock
Base layer structure.According to existing《Highway road surface construction technology detailed rules and regulations》Construction.
Wherein, sub-layer 4 is the AC-25 cutting optimals that surface layer and thickness are 8cm in the AC-20 that thickness is 6cm from top to bottom,
According to existing《Standard specification for construction and acceptance of highway asphalt pavement》Implement；The water-proof tack coat 3 is SBS modified emulsifying asphalt layers；
Wherein, the solid content of SBS modified emulsifying asphalts is 55%, spread quantity 0.3kg/m2~0.6kg/m2。
2 thick 4cm of drainage blanket, its voidage are 20.4%, infiltration coefficient 6818ml/min；Mineral aggregate gradation is as shown in table 1：
Table 1：The drainage blanket mineral aggregate gradation of embodiment 1
1 thick 0.6mm of surface peening layer, material is emulsified asphalt modified with water-epoxy resin.
Embodiment 2
A kind of bus rapid transit (BRT) track drainage asphalt pavement structure, as shown in Fig. 2 making is on subjacent bed 5；From
Subjacent bed 5 is upward, is followed successively by sub-layer 4, water-proof tack coat 3, drainage blanket 2, surface peening layer.In the present embodiment, surface peening
Layer is bilayer, and the 101 thick 0.5mm of upper strata of surface peening layer, material is emulsified asphalt modified with water-epoxy resin.Surface peening layer
102 thick 0.3mm of lower floor, material is SBS modified emulsifying asphalts.
Wherein, subjacent bed 5 is the deck paving combining structure of floorings, waterproof layer and tack coat, on floorings successively
Waterproof layer and tack coat are set.Waterproof layer is thick 0.5mm Epoxy resin waterproof material.The tack coat is thick 1mm epoxy
Pitch binding material.
Sub-layer 4 is the AC-20 cutting optimals that thickness is 5cm, according to existing《Standard specification for construction and acceptance of highway asphalt pavement》It is real
Apply；
Water-proof tack coat 3 is rubber asphalt synchronous surface dressing structure；Specifically, using 4.75mm~9.5mm simple grains footpath
Rubble, and attached 0.3%~0.5% (in terms of rubble weight) SBS modified pitch is wrapped up in advance；Rubber asphalt spread quantity be 1.5kg/m2~
1.8kg/m2,60%~70% when crushed stone spreading amount is completely spreads；
2 thick 4cm of drainage blanket, its voidage are 19.0%, infiltration coefficient 5104ml/min；Mineral aggregate gradation is as shown in table 2：
Table 2：The drainage blanket mineral aggregate gradation of embodiment 2
| Sieve aperture/mm | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| Percent of pass/% | 100 | 92.3 | 67.2 | 18.0 | 13.8 | 11.1 | 10.2 | 8.4 | 7.6 | 6.0 |
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as the scope of protection of the utility model.
Claims (10)
- A kind of 1. porous asphalt pavement structure for bus rapid transit track, it is characterised in that sequentially consist of subjacent bed, Sub-layer, water-proof tack coat, drainage blanket and surface peening layer.
- 2. the porous asphalt pavement structure according to claim 1 for bus rapid transit track, it is characterised in that described Surface peening layer is individual layer；The surface peening thickness degree is 0.3~1.2mm, and it is aqueous high molecular modified emulsifying to form surface peening layer material therefor One kind in asphalt emulsion, alpha-cyanoacrylate resinae adhesive class material or neoprene-phenolic aldehyde gluing class material, it is described water-based Macromolecule modified emulsified asphalt emulsion is emulsified asphalt modified with water-epoxy resin, waterborne polyurethane modified emulsified asphalt and water-based One kind in acrylic acid modified emulsified asphalt.
- 3. the porous asphalt pavement structure according to claim 1 for bus rapid transit track, it is characterised in that the table Surface strengthening thickness degree is 0.5~2mm, and described surface peening layer is bilayer, and upper strata material therefor is aqueous high molecular modified milk Change one kind in asphalt emulsion, alpha-cyanoacrylate resinae adhesive class material or neoprene-phenolic aldehyde gluing class material；Lower floor is One kind in SBS modified emulsifying asphalts, SBR modified emulsifying asphalts or aqueous high molecular modified emulsifying asphalt emulsion is formed； The aqueous high molecular modified emulsifying asphalt emulsion is emulsified asphalt modified with water-epoxy resin, waterborne polyurethane modified emulsification drip One kind in blue or green or aqueous acrylic modified emulsified asphalt.
- 4. the porous asphalt pavement structure according to claim 1 for bus rapid transit track, it is characterised in that described Drainage blanket thickness is 3~12cm, is open gradation asphalt structure, and its voidage is 18%~25%, and infiltration coefficient is more than 3000ml/min。
- 5. the porous asphalt pavement structure according to claim 1 for bus rapid transit track, it is characterised in that described anti- Water tack coat is one kind in modified heated bitumen layer, modified emulsifying asphalt layer or crushed stone sealing structure.
- 6. the porous asphalt pavement structure according to claim 1 for bus rapid transit track, it is characterised in that under described It is 5~20cm to hold thickness degree, is dense bitumen mixture structure.
- 7. the porous asphalt pavement structure according to claim 1 for bus rapid transit track, it is characterised in that described Subjacent bed is the structure of roadbed, underlayment and basic unit's combination, making underlayment and basic unit successively on roadbed.
- 8. the porous asphalt pavement structure according to claim 7 for bus rapid transit track, it is characterised in that the bottom Basic unit is lime-sand-clay mixture underlayment, and thickness is 15~20cm；The thickness of basic unit is 18~45cm, and the basic unit is framework compact Type semi-rigid type base or flexbile base.
- 9. the porous asphalt pavement structure according to claim 1 for bus rapid transit track, it is characterised in that described Subjacent bed is the combining structure of floorings, waterproof layer and tack coat, and waterproof layer and tack coat are set gradually on floorings.
- 10. the porous asphalt pavement structure according to claim 9 for bus rapid transit track, it is characterised in that described The material of waterproof layer is Epoxy resin waterproof material, and thickness is 0.01~0.5mm；The material of the tack coat glues for bituminous epoxy Material is tied, thickness is 0.1~1mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720036593.6U CN206692972U (en) | 2017-01-12 | 2017-01-12 | A kind of porous asphalt pavement structure for bus rapid transit track |
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| CN201720036593.6U CN206692972U (en) | 2017-01-12 | 2017-01-12 | A kind of porous asphalt pavement structure for bus rapid transit track |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486980A (en) * | 2018-04-20 | 2018-09-04 | 上海理工大学 | A kind of aqueous epoxy resins micro-surfacing mixture based on multi-grade stone-stone research of grade-suit theory |
| CN108643037A (en) * | 2018-04-25 | 2018-10-12 | 广州市市政工程设计研究总院 | A kind of bridge asphalt pavement structure and method of construction |
-
2017
- 2017-01-12 CN CN201720036593.6U patent/CN206692972U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486980A (en) * | 2018-04-20 | 2018-09-04 | 上海理工大学 | A kind of aqueous epoxy resins micro-surfacing mixture based on multi-grade stone-stone research of grade-suit theory |
| CN108486980B (en) * | 2018-04-20 | 2020-08-28 | 上海理工大学 | Waterborne epoxy resin micro-surfacing mixture based on multistage embedded extrusion grading theory |
| CN108643037A (en) * | 2018-04-25 | 2018-10-12 | 广州市市政工程设计研究总院 | A kind of bridge asphalt pavement structure and method of construction |
| CN108643037B (en) * | 2018-04-25 | 2019-11-01 | 广州市市政工程设计研究总院有限公司 | A kind of bridge asphalt pavement structure and method of construction |
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