CN201722578U - Pavement structure provided with water-permeable filter layer on roadbed - Google Patents
Pavement structure provided with water-permeable filter layer on roadbed Download PDFInfo
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- CN201722578U CN201722578U CN2010201414069U CN201020141406U CN201722578U CN 201722578 U CN201722578 U CN 201722578U CN 2010201414069 U CN2010201414069 U CN 2010201414069U CN 201020141406 U CN201020141406 U CN 201020141406U CN 201722578 U CN201722578 U CN 201722578U
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Abstract
The utility model provides a pavement structure provided with a water-permeable filter layer on a roadbed, comprising a surface layer, a base layer, a water-draining cushion layer and the roadbed from top to bottom, wherein the water-permeable filter layer is arranged between the roadbed and the water-draining cushion layer. As the water-permeable filter layer is arranged between the roadbed and the water-draining cushion layer, when ensuring that underground water rises and enters the water-permeable filter layer and then is drained out of a pavement, the pavement structure can effectively prevent fine grained soils or grains on the roadbed from being brought into the water-draining cushion layer by the underground water to avoid the losses of the fine grained soils or grains and reduce pavement subsidence, and also prevent the fine grained soils or grains from blocking holes of the water-draining cushion layer; and meanwhile, under the condition that the water-draining cushion layer has low porosity caused by bad control of construction quality, the pavement structure can prevent the fine grained soils or grains from blocking the holes on the water-draining cushion layer without further reducing the porosity, and has positive actions on the water drainage of the water-draining cushion layer.
Description
Technical field
The utility model relates to a kind of road structure, relates in particular to the road structure that permeable filtration beds is set on a kind of roadbed.
Background technology
In fields such as road, airfield runway and urban operating mechanisms, pavement life shortens a great problem that has become in the construction.Cause the reason of road surface early damage, the lost of life to have many.Wherein, studies show that " water is the dead enemy ".According to the source of water, the road surface damage by water is bad can be divided into two kinds of the bad and underground water damages of road table damage by water.Wherein, underground water has played very big damage effect to ground.Underground water damages, and is meant big roadbed soil of humidity or the higher area of groundwater table, and the water in roadbed soil, roadbed bottom or the cut slope enters the pavement destruction that road structure inside causes by capillarity or side direction seepage flow.When underground water enters road structure inside, under the continuous extruding of carload especially heavy duty, also can attach a small amount of roadbed fine grained soils, cause the roadbed fine grained soils to run off, the roadbed bulk strength reduces, cause pavement depression destruction and influence the road structure bearing capacity, the roadbed fine grained soils also can cause the road surface purt mud phenomenon frequently to occur with the subsidiary rising of water.Simultaneously, existing drainage blanket generally adopts honeycombed cement stabilization gravel class drainage blanket, and the construction quality of this drainage blanket is had relatively high expectations, and the system of mixing of this drainage blanket compound is high especially to the requirement of water supply volume, if it is water supply volume is too small, loose easily when rolling compound; If water supply volume is excessive, segregation phenomenon then appears easily.Construction control is bad, will influence its drainage effect, so porosity is generally lower.Therefore the fine grained soils that rises is easy to stop up the limited hole of drainage blanket, causes impeded drainage.
Therefore need provide the road structure that permeable filtration beds is set on a kind of roadbed, can effectively stop the roadbed fine grained soils rising loss of rising and causing, thereby make roadbed keep stable, and can not stop up the space of drainage blanket, make draining unimpeded because of underground water.
The utility model content
In view of this, the purpose of this utility model provides the road structure that permeable filtration beds is set on a kind of roadbed.The purpose of this utility model is achieved through the following technical solutions: the road structure that permeable filtration beds is set on a kind of roadbed, comprise surface layer, basic unit, drainage blanket and roadbed from top to bottom, be provided for filtering the permeable filtration beds of fine deposit between described roadbed and the drainage blanket.
Further, described surface layer is asphalt concrete pavement, portland cement concrete surface layer, roller compacted concrete surface layer, modified concrete surface layer or fibrous concrete surface layer; Described basic unit is flexbile base, semi-rigid type base or rigid base; Described drainage blanket is pellet bed course, organic binder stable granulate bed course, stabilized with inorganic binder pellet bed course or mangcorn sarking;
Further, described permeable filtration beds is the geotechnological layer of cloth of permeable filtration of thickness 0.5mm～2mm.
The beneficial effects of the utility model are: permeable filtration beds is set between roadbed and drainage blanket, can guarantee underground water rise enter bed course and discharge beyond the road surface in, effectively blocking-up roadbed fine grained soils or particle are brought into bed course by underground water, avoid the loss of roadbed fine grained soils or particle, reduce pavement depression, also can avoid roadbed fine grained soils or particle to stop up the hole of drainage blanket.Simultaneously, cause under the situation of porosity reduction owing to quality control on construction is bad at drainage blanket, can prevent that roadbed fine grained soils or particle from stopping up the existing hole of drainage blanket, can not cause porosity further to reduce, play positive effect for the drainage of bed course.
Other advantages of the present utility model, target and feature will be set forth in the following description, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.
Description of drawings
Below in conjunction with drawings and Examples the road structure that permeable filtration beds is set on the roadbed of the present utility model is described further, accompanying drawing is a structural representation of the present utility model.
The specific embodiment
As shown in the figure, the road structure of establishing permeable filtration beds on the roadbed of the present utility model is followed successively by surface layer 1, basic unit 2, drainage blanket 3, permeable filtration beds 4 and roadbed 5 from top to bottom.Surface layer 1 is one of asphalt concrete pavement, portland cement concrete surface layer, roller compacted concrete surface layer, modified concrete surface layer or fibrous concrete surface layer; Basic unit 2 is one of flexbile base, semi-rigid type base or rigid base; Drainage blanket 3 is one of pellet bed course, organic binder stable granulate bed course, stabilized with inorganic binder pellet bed course or mangcorn sarking; Permeable filtration beds 4 is the geotechnological layer of cloth of permeable filtration.In the present embodiment, because permeable filtration beds 4 has adopted the geotechnological layer of cloth of permeable filtration, utilize the not susceptible to plugging characteristics of geotextiles air permeability and good, high water-permeability and mesh, can guarantee underground water rise enter bed course and discharge beyond the road surface in, effectively blocking-up roadbed fine grained soils or particle are brought into drainage blanket by underground water, avoid the loss of roadbed fine grained soils or particle, reduce pavement depression, also can avoid roadbed fine grained soils or particle to stop up the hole of drainage blanket.
The concrete job practices of road structure of the present utility model is: at first built roadbed 5, smooth on roadbed 5, lay permeable filtration beds 4 uniformly, making drainage blanket 3 on permeable filtration beds 4 again, the basic unit 2 that on drainage blanket 3, paves then, surface layer 1 at last paves in basic unit 2.
Embodiment one, described surface layer 1 is the portland cement concrete surface layer, basic unit 2 is a semi-rigid type base, drainage blanket 3 is an organic binder stable granulate bed course, the geotechnological layer of cloth of permeable filtration that permeable filtration beds 4 is thickness 0.5mm gets final product the road structure that permeable filtration beds is set on the making roadbed of the present utility model according to aforementioned job practices.
Embodiment two, described surface layer 1 is an asphalt concrete pavement, basic unit 2 is a flexbile base, drainage blanket 3 is a stabilized with inorganic binder pellet bed course, the geotechnological layer of cloth of permeable filtration that permeable filtration beds 4 is thickness 1.25mm gets final product the road structure that permeable filtration beds is set on the making roadbed of the present utility model according to aforementioned job practices.
Embodiment three, described surface layer 1 is the fibrous concrete surface layer, and basic unit 2 is a flexbile base, and drainage blanket 3 is the pellet bed course, the geotechnological layer of cloth of permeable filtration that permeable filtration beds 4 is thickness 2mm gets final product the road structure that permeable filtration beds is set on the making roadbed of the present utility model according to aforementioned job practices.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (3)
1. the road structure of permeable filtration beds is set on the roadbed, comprise surface layer (1), basic unit (2), drainage blanket (3) and roadbed (5) from top to bottom, it is characterized in that: the permeable filtration beds (4) that is provided for filtering fine deposit between described roadbed (5) and the drainage blanket (3).
2. the road structure of permeable filtration beds is set on the roadbed according to claim 1, it is characterized in that: described surface layer (1) is asphalt concrete pavement, portland cement concrete surface layer, roller compacted concrete surface layer, modified concrete surface layer or fibrous concrete surface layer; Described basic unit (2) is flexbile base, semi-rigid type base or rigid base; Described drainage blanket (3) is pellet bed course, organic binder stable granulate bed course, stabilized with inorganic binder pellet bed course or mangcorn sarking.
3. the road structure of permeable filtration beds is set on the roadbed according to claim 1, it is characterized in that: described permeable filtration beds (4) is the geotechnological layer of cloth of permeable filtration of thickness 0.5mm～2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201414069U CN201722578U (en) | 2010-03-25 | 2010-03-25 | Pavement structure provided with water-permeable filter layer on roadbed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201414069U CN201722578U (en) | 2010-03-25 | 2010-03-25 | Pavement structure provided with water-permeable filter layer on roadbed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201722578U true CN201722578U (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201414069U Expired - Fee Related CN201722578U (en) | 2010-03-25 | 2010-03-25 | Pavement structure provided with water-permeable filter layer on roadbed |
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| CN (1) | CN201722578U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561381A (en) * | 2011-12-29 | 2012-07-11 | 中国一冶集团有限公司 | Method for preventing settling and cracking of large-area terrace by using bonded prestressed concrete beams in soft soil layer region |
| CN102561380A (en) * | 2011-12-29 | 2012-07-11 | 中国一冶集团有限公司 | Method for preventing settlement and cracking of large-area terrace in soft soil area by adopting unbounded prestressing concrete beams |
| CN102852059A (en) * | 2012-09-28 | 2013-01-02 | 中建五局土木工程有限公司 | Pavement structure based on water sand backfilling technology and construction method thereof |
| CN103556558A (en) * | 2013-10-21 | 2014-02-05 | 马银华 | Pavement construction with hierarchically completely encapsulated roadbed and construction method thereof |
| CN105378167A (en) * | 2013-02-22 | 2016-03-02 | 尼科伦有限公司 | Stabilized and reinforced civil constructions and method of making same |
| CN105908587A (en) * | 2016-04-28 | 2016-08-31 | 镇江市高等专科学校 | Roadbed thermal insulation construction method in frozen earth area |
| CN106555372A (en) * | 2017-01-22 | 2017-04-05 | 海绵城市道路材料（深圳）有限公司 | A kind of porous pavement is mated formation plate and porous pavement paving structure |
| CN109487656A (en) * | 2018-09-27 | 2019-03-19 | 广西交通科学研究院有限公司 | A kind of concrete road surface structure and its method that paves |
| CN111155403A (en) * | 2020-01-20 | 2020-05-15 | 芜湖海螺水泥有限公司 | Method for constructing surface mine road |
-
2010
- 2010-03-25 CN CN2010201414069U patent/CN201722578U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561381A (en) * | 2011-12-29 | 2012-07-11 | 中国一冶集团有限公司 | Method for preventing settling and cracking of large-area terrace by using bonded prestressed concrete beams in soft soil layer region |
| CN102561380A (en) * | 2011-12-29 | 2012-07-11 | 中国一冶集团有限公司 | Method for preventing settlement and cracking of large-area terrace in soft soil area by adopting unbounded prestressing concrete beams |
| CN102561380B (en) * | 2011-12-29 | 2014-09-17 | 中国一冶集团有限公司 | Method for preventing settlement and cracking of large-area terrace in soft soil area by adopting unbounded prestressing concrete beams |
| CN102852059A (en) * | 2012-09-28 | 2013-01-02 | 中建五局土木工程有限公司 | Pavement structure based on water sand backfilling technology and construction method thereof |
| CN105378167A (en) * | 2013-02-22 | 2016-03-02 | 尼科伦有限公司 | Stabilized and reinforced civil constructions and method of making same |
| CN105378167B (en) * | 2013-02-22 | 2018-01-26 | 尼科伦有限公司 | Civil engineering structure and its manufacture method stable and reinforce |
| CN103556558A (en) * | 2013-10-21 | 2014-02-05 | 马银华 | Pavement construction with hierarchically completely encapsulated roadbed and construction method thereof |
| CN103556558B (en) * | 2013-10-21 | 2015-06-24 | 重庆交通大学 | Pavement construction with hierarchically completely encapsulated roadbed and construction method thereof |
| CN105908587A (en) * | 2016-04-28 | 2016-08-31 | 镇江市高等专科学校 | Roadbed thermal insulation construction method in frozen earth area |
| CN106555372A (en) * | 2017-01-22 | 2017-04-05 | 海绵城市道路材料（深圳）有限公司 | A kind of porous pavement is mated formation plate and porous pavement paving structure |
| CN109487656A (en) * | 2018-09-27 | 2019-03-19 | 广西交通科学研究院有限公司 | A kind of concrete road surface structure and its method that paves |
| CN111155403A (en) * | 2020-01-20 | 2020-05-15 | 芜湖海螺水泥有限公司 | Method for constructing surface mine road |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20110325 |