CN203128970U - Water permeable road surface capable of purifying rainwater - Google Patents
Water permeable road surface capable of purifying rainwater Download PDFInfo
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- CN203128970U CN203128970U CN 201320049570 CN201320049570U CN203128970U CN 203128970 U CN203128970 U CN 203128970U CN 201320049570 CN201320049570 CN 201320049570 CN 201320049570 U CN201320049570 U CN 201320049570U CN 203128970 U CN203128970 U CN 203128970U
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Abstract
The utility model discloses a water permeable road surface capable of purifying rainwater. The road surface comprises a geotextile layer, a sand mat paved on the geotextile layer, a graded macadam layer paved on the sand mat and a porous surface layer paved on the graded macadam layer. By reasonably arranging the road surface materials and the structural layers, the road surface can improve the quality of rainwater infiltrating into an earth base so as to reduce the pollution on urban groundwater and purify rainwater.
Description
Technical field
The utility model relates to a kind of road surface, is specifically related to a kind of porous pavement that purifies rainwater.
Background technology
In urban construction, most urban road, park, garden and public squares are fluid-tight close-graded concrete and flag paving.Though thisly mat formation simply, with low cost, be unfavorable for rainwater infiltration, replenish urban groundwater, thereby cause the city cone of groundwater phenomenon to occur, the aggravation surface subsidence has brought very big negative effect to urban ecological environment.
Outside in urban road road table, include all kinds of pollutants, comprise solid particle, organic pollution, nitrogen phosphorus nutrition thing etc., these pollutants can flow with rainwater when rainfall, can cause phreatic pollution when these pollutants enter in the soil matrix.
Summary of the invention
Have multiple pollutant at city road table, rainwater infiltrates the phenomenon that soil matrix causes groundwater pollution easily by the road surface, and the purpose of this utility model is to provide a kind of porous pavement that purifies rainwater.
For this reason, the porous pavement of the purified rainwater that provides of the utility model comprises the geotextile layer, is laid on sand cushion on the geotextile layer, is laid on the graded broken stone layer on the sand cushion and is laid on porous friction course on the graded broken stone layer.
Other technologies of the present utility model are characterized as:
Described graded broken stone layer comprises that the graded broken stone that is laid on the sand cushion goes to a grassroots level and be laid on basic unit on the graded broken stone of graded broken stone on going to a grassroots level.
Described porous friction course comprises under the porous that is laid on the graded broken stone layer surface layer and is laid on the porous upper layer on the surface layer under the porous.
The thickness of described sand cushion is 5～10cm.
The thickness that described graded broken stone is gone to a grassroots level is that 15～50cm, void content are 12%～16%.
The thickness of basic unit is 8～12cm on the described graded broken stone, and void content is 8%～15%.
The void content of surface layer is 18%～25% under the described porous.
The void content of described porous upper layer is 18%～25%.
By ground surface material and deck reasonably are set, the rainwater quality of infiltrating soil matrix can be improved in road surface of the present utility model, thereby reduces the pollution to urban groundwater, realizes the catharsis to rainwater.
Description of drawings
Below in conjunction with accompanying drawing and the specific embodiment the utility model is done step detailed description.
Fig. 1 is the permeable pavement structure schematic diagram that can purify rainwater of the present utility model.
The specific embodiment
Each deck of porous pavement has the function of infiltration rainwater, can make the rainwater that drops to the road table infiltrate soil matrix, therefore, from improving the water cycle perspective in city, improves the angle of balance of city ecosystem and sets out, and porous pavement has society and environmental benefit significantly.
Because particle and factors such as other particles relevant with vehicle operating, atmospheric falling dust and deicer that the leakage of tire wear, road materials wearing and tearing, transportation article, brake linkage produce, in the table of urban road road, include all kinds of pollutants, comprise solid particle, organic pollution, heavy metal, nitrogen phosphorus nutrition thing, chloride, grease, agricultural chemicals etc., these pollutants can flow with rainwater when rainfall, when adopting porous pavement, should avoid these pollutants to enter in the soil matrix, cause phreatic pollution.Therefore, can be optimized porous pavement material and textural association, realize that by ground surface material and deck reasonably are set the road surface to infiltrating the filtration, purification of rainwater, guarantees that underground water is not contaminated.Can effectively alleviate the present situation that can not get replenishing after the urban groundwater exploitation by the making porous pavement, because there is multiple pollutant in the road table, can not pollute underground water in order to ensure the rainwater that infiltrates soil matrix, the permeable pavement structure layer material need rationally be set, corresponding effective filtration beds is set simultaneously, thereby makes the rainwater that infiltrates soil matrix clean relatively.
As shown in Figure 1, the porous pavement that purifies rainwater of the present utility model comprises the geotextile layer 6 that is layed on the roadbed and the sand cushion 5 that is layed on the geotextile layer 6, at sand cushion 5 the graded broken stone layer is set, this graded broken stone layer can be the different graded broken stone base of two-layer nominal maximum particle diameter, be respectively the graded broken stone that is laid on the sand cushion 5 and go to a grassroots level 4 and be laid on the graded broken stone basic unit 3 on the graded broken stone on 4 that goes to a grassroots level, lay porous friction course at graded broken stone base, this porous friction course can be the different porous asphalt mixture of two-layer nominal maximum particle diameter or honeycombed cement concrete pavement, and it is respectively under the porous that is laid on the graded broken stone layer surface layer 2 and is laid on the porous upper layer 1 on the surface layer 2 under the porous.
Wherein be layed in the geotextile layer 6 on the soil matrix, its penetrating power is higher, generally in 0.00l～0.lcm/s scope, and can stop the particle in the soil matrix to enter road structure;
Be layed in the sand cushion 5 on the geotextile layer 6, thickness is generally 5～10cm, adopts medium sand or coarse sand making and compacting;
Be layed in graded broken stone base on the sand cushion 5 and be divided into that basic unit 3 and graded broken stone go to a grassroots level 4 on the graded broken stone, graded broken stone goes to a grassroots level 4, and to adopt the nominal maximum particle diameters be the graded broken stone of 26.5～37.5mm, thickness is generally 15～50cm, and void content is about 12%～16%; Basic unit's 3 employing nominal maximum particle diameters are the graded broken stone of 16～20mm on the graded broken stone, and thickness is generally 8～12cm, and void content is 8%～15%;
The porous asphalt mixture or the honeycombed cement concrete pavement that are layed on the graded broken stone base are divided into surface layer 2 under porous upper layer 1 and the porous, surface layer 2 is that the nominal maximum particle diameter is at porous asphalt mixture or the honeycombed cement concrete of 16～25mm under the porous, porous upper layer 1 be the nominal maximum particle diameter at porous asphalt mixture or the honeycombed cement concrete of 5～13mm, surface layer 2 material void rates are 18%～25% under porous upper layer 1 and the porous.
Road surface of the present utility model has taken into full account the filtration to particulate matter when design, be provided with geotextile and sand cushion at the soil matrix end face, this materials at two layers has good filter effect, porous asphalt mixture, honeycombed cement concrete and graded broken stone material with top course in the while sub-surface are porous crack structure, also have certain absorption and filter capacity to infiltrating rainwater, rainwater is by the filtration layer by layer of road surface structare layer, pollutant load when infiltrating soil matrix is less, and is clean relatively.
Embodiment:
According to the technical solution of the utility model, present embodiment provides a kind of porous pavement that can purify rainwater.
The braid that the soil matrix end face laying geotextile layer 6 of this embodiment adopts poly-vinegar class material to make, transmission coefficient 0.007cm/s, sand cushion 5 during geotextile layer 6 end face are laid, thickness 5cm; The graded broken stone that middle sand cushion 5 end face making nominal maximum particle diameters are 31.5mm goes to a grassroots level 4, and its graded broken stone is selected limestone aggregates for use, and void content is 13%, and thickness is 20cm; Go to a grassroots level making nominal maximum particle diameter on 4 of graded broken stone is basic unit 3 on the graded broken stone of 19mm, and its graded broken stone is selected limestone aggregates for use, and void content is 11%, and thickness is 10cm; Basic unit's 3 end face making nominal maximum particle diameters are surface layer 2 under the porous of 16mm on the graded broken stone, it adopts basalt aggregate and high-viscosity modified asphalt preparation, the mixture gap rate is 20%, thickness is 6cm, surface layer 2 end face making nominal maximum particle diameters are the porous upper layer 1 of 10mm under the porous, it adopts basalt aggregate and high-viscosity modified asphalt preparation, and the mixture gap rate is 20%, and making thickness is 4cm.
Adopt road table rainwater by behind this road structure, can filter 70%～80% suspended particulate substance ss and 50%～60% organic pollution COD, the rainwater after the filtration is clean relatively, has realized that porous pavement purifies the function of rainwater.
Claims (8)
1. porous pavement that can purify rainwater, it is characterized in that, comprise geotextile layer (6), be laid on sand cushion (5) on the geotextile layer (6), be laid on the graded broken stone layer on the sand cushion (5) and be laid on porous friction course on the graded broken stone layer.
2. the porous pavement that purifies rainwater as claimed in claim 1, it is characterized in that described graded broken stone layer comprises that the graded broken stone that is laid on the sand cushion (5) goes to a grassroots level (4) and be laid on the graded broken stone basic unit (3) on the graded broken stone on (4) that goes to a grassroots level.
3. the porous pavement that purifies rainwater as claimed in claim 1 is characterized in that, described porous friction course comprises surface layer under the porous that is laid on the graded broken stone layer (2) and is laid on porous upper layer (1) on the surface layer under the porous (2).
4. the porous pavement that purifies rainwater as claimed in claim 1 is characterized in that, the thickness of described sand cushion (5) is 5～10cm.
5. the porous pavement that purifies rainwater as claimed in claim 2 is characterized in that, the go to a grassroots level thickness of (4) of described graded broken stone is that 15～50cm, void content are 12%～16%.
6. the porous pavement that purifies rainwater as claimed in claim 2 is characterized in that, the thickness of basic unit on the described graded broken stone (3) is that 8～12cm, void content are 8%～15%.
7. the porous pavement that purifies rainwater as claimed in claim 3 is characterized in that, the void content of surface layer under the described porous (2) is 18%～25%.
8. the porous pavement that purifies rainwater as claimed in claim 3 is characterized in that, the void content of described porous upper layer (1) is 18%～25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049570 CN203128970U (en) | 2013-01-29 | 2013-01-29 | Water permeable road surface capable of purifying rainwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049570 CN203128970U (en) | 2013-01-29 | 2013-01-29 | Water permeable road surface capable of purifying rainwater |
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| CN203128970U true CN203128970U (en) | 2013-08-14 |
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| CN 201320049570 Expired - Fee Related CN203128970U (en) | 2013-01-29 | 2013-01-29 | Water permeable road surface capable of purifying rainwater |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981785A (en) * | 2014-05-30 | 2014-08-13 | 北京建筑大学 | Pervious concrete paving system with penetration and drainage guide tubes |
| CN104695298A (en) * | 2015-02-12 | 2015-06-10 | 广州市市政工程设计研究院 | Complete permeable compound type road surface structure |
| CN105040554A (en) * | 2015-06-23 | 2015-11-11 | 滁州市瑞景园林建设有限公司 | Garden path structure and paving construction technology thereof |
| CN106565175A (en) * | 2016-11-14 | 2017-04-19 | 绍兴职业技术学院 | Permeable high elastic modulus mortar for sponge city and preparation method thereof and application mode thereof |
| CN108408818A (en) * | 2018-03-27 | 2018-08-17 | 中国科学院武汉岩土力学研究所 | A kind of industrial pollution area building substrate contamination object separation purifying system |
| CN109706815A (en) * | 2019-01-21 | 2019-05-03 | 济南城建集团有限公司 | A kind of roadnet with multilayer water purification structure |
-
2013
- 2013-01-29 CN CN 201320049570 patent/CN203128970U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981785A (en) * | 2014-05-30 | 2014-08-13 | 北京建筑大学 | Pervious concrete paving system with penetration and drainage guide tubes |
| CN104695298A (en) * | 2015-02-12 | 2015-06-10 | 广州市市政工程设计研究院 | Complete permeable compound type road surface structure |
| CN105040554A (en) * | 2015-06-23 | 2015-11-11 | 滁州市瑞景园林建设有限公司 | Garden path structure and paving construction technology thereof |
| CN106565175A (en) * | 2016-11-14 | 2017-04-19 | 绍兴职业技术学院 | Permeable high elastic modulus mortar for sponge city and preparation method thereof and application mode thereof |
| CN108408818A (en) * | 2018-03-27 | 2018-08-17 | 中国科学院武汉岩土力学研究所 | A kind of industrial pollution area building substrate contamination object separation purifying system |
| CN108408818B (en) * | 2018-03-27 | 2024-03-29 | 中国科学院武汉岩土力学研究所 | Industrial pollution area building substrate pollutant isolation and purification system |
| CN109706815A (en) * | 2019-01-21 | 2019-05-03 | 济南城建集团有限公司 | A kind of roadnet with multilayer water purification structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20160129 |
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| EXPY | Termination of patent right or utility model |