CN103669167A - Permeable pavement structure - Google Patents
Permeable pavement structure Download PDFInfo
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- CN103669167A CN103669167A CN201310751099.4A CN201310751099A CN103669167A CN 103669167 A CN103669167 A CN 103669167A CN 201310751099 A CN201310751099 A CN 201310751099A CN 103669167 A CN103669167 A CN 103669167A
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Abstract
The invention relates to a permeable pavement structure. The permeable pavement structure comprises a ground water collection layer, which is formed by arranging longitudinal tiles, a filtering layer, which is made of a permeable material, a rainwater collection layer, which is internally provided with a drainage blind ditch, a cushion ply and an original subgrade layer from the top to bottom in sequence, wherein the filtering layer further comprises an upper layer of levelling blanket and a lower layer of substrate. The permeable pavement structure aims at the vices of easiness in influencing water permeability, higher cost, narrower lawn mixed pavement application surface and the like of the conventional permeable pavement, regular materials, such as the tiles and gravels, are applied to carry out collection operation of rainwater on the pavement, and through setting an underground laminar water permeating and collection structure, collection or infiltration of the rainwater can be completed. The permeable pavement structure has the characteristics of strong water permeability, attractive appearance, wide application and the like.
Description
Technical field
The highway construction structure that the present invention relates to a kind of nonmotorized vehicle lane, particularly relates to a kind of permeable pavement structure.
Background technology
Rainwater is city preciousness and economic water resource.From sealing road surface or roof, guide rainwater into non-sealing road surface through the permeation filtration of soil, both can slow down the intensity of rainwater surface flow, underground water is supplemented, also can remove the part pollutant in rainwater, get rid of on the spot rainwater and reduce the accident causing due to ponding.Also the rainwater after filtering can be used as to the undrinkable water in city, reduce the demand of drinking water, saving water resource, the pressure of alleviation urban water supply.
In addition, rainwater-collecting can also be saved the construction cost of drinking water distribution system, obtains considerable economic benefit.Therefore, it is a rainwater utilization technology very with feasibility that water-permeable pavement is collected rainwater, and the design of water-permeable pavement water permeability has also been widely used in the construction on various road surfaces.
Since the nineties in 20th century, popular employing dank material covers the road surface in city in the world, or changes some hard surfaces of laying in the past into water-permeable pavement, to strengthen the ecological effect in city.
City runway generally adopts water permeability asphalt concrete or permeable concrete.But not runway generally adopts the forms such as meadow, floor tile turf splice type road surface, cobble, macadam pavement and porous brick.
The road surface such as turf, cobble sight is stronger, but only can be applicable to the few road surfaces of visitors flowrate such as gardens, residential quarters, is applied to that on other road surfaces, generalization is poor.Porous brick utilizes the draining of micropore technology, has the features such as water-permeable and air permeable, cold-resistant weather resistance, Antiskid noise, is widely used in humanoid pavement, square etc.Yet, after long-term use, easily cause blockage of the micro orifice and affect its permeable effect, and under the microthermal climate condition in very long winter of the north, the brick body of porous brick easily causes strength decreased because freezing etc., and the cost of this porous brick is higher, also affects its promotion prospect.
Summary of the invention
The object of the invention is to propose a kind of simple in structure, cost is lower, can be used in nonmotorized vehicle lane and can realize the novel water permeable road structure of rainwater infiltration and collection.
For achieving the above object, the invention provides a kind of permeable pavement structure, described permeable pavement structure comprise successively from top to bottom by longitudinal tile arrange the filter layer that catchments layer, formed by dank material in the ground forming, in establish the rainwater-collecting layer of weeper drain, and bed course and original subgrade layer, wherein, described filter layer also comprises the leveling layer on upper strata and the basic unit of lower floor.
Preferably, the tile catchmenting in layer in described ground is vertical longitudinal arrangement or inclination longitudinal arrangement, and the gap between adjacent tiles is tamped by rubble and/or fine sand.
Preferably, described leveling layer is mixed and is paved into fine sand by cement, and the volume ratio between described cement and fine sand is 1～1.5:12～16, and wherein, the mud content in fine sand is less than 2%, clod content is less than 1%, moisture content is less than 3%.
Preferably, the coefficient of permeability of described leveling layer is at least 2.0 * 10
-2cm/s, thickness are 30～50mm.
Preferably, described basic unit is paved into by graded broken stone or pervious concrete, and thickness is not less than 100mm.
Preferably, described bed course is that thickness is medium sand or the coarse sands layer of 40～50mm, and the mud content in bed course is less than 5%, clod content is less than 2%, moisture content is less than 3%.
Based on technique scheme, advantage of the present invention is:
The permeable pavement water permeability that the present invention is directed to current use is subject to the shortcomings such as time effects, cost is higher, mixing road surface, lawn application surface is narrower, the conventional materials such as application tile, rubble carry out the collection operation of rainwater on road surface, and by be arranged on underground stratiform permeable with collection structure jointly complete rainwater collection or under ooze.Road structure of the present invention also has that water permeability is strong, morphological appearance, the feature such as be widely used.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is layer structure schematic diagram of the present invention;
In figure:
The 1-layer that catchments on ground; 2-filter layer; 3-rainwater-collecting layer; 4-bed course; 5-original subgrade layer
11-tile; Place, 12-gap; 21-leveling layer; 22-basic unit; 31-weeper drain.
The specific embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Referring to Fig. 1, the specific embodiment of a kind of permeable pavement structure of the present invention shown in it, wherein, described permeable pavement structure comprise successively from top to bottom by longitudinal tile 11 arrange the filter layer 2 that catchments layer 1, formed by dank material in the ground forming, in establish the rainwater-collecting layer 3 of weeper drain 31, and bed course 4 and original subgrade layer 5, wherein, described filter layer 2 also comprises the basic unit 22 of the leveling layer 21He lower floor on upper strata.This kind of layer structure of the present invention, have water permeability strong, be easy to rainwater-collecting, and material cost is lower, the advantage such as is easy to apply.
Especially the tile 11 catchmenting in layer 1 in described ground can be vertical longitudinal arrangement, or be inclination longitudinal arrangement, and place, the gap between adjacent tiles 12 can be tamped by rubble and/or fine sand, in the present embodiment, place, gap 12 is tamped by joint filling sand, and the mixture that the described joint filling sand rubble that to be dry fine sand be less than 5mm with particle diameter mixes mutually with the ratio of 2:1, that is: described joint filling sand comprises that volume ratio is the mixture that the dry fine sand of 3:1～1.5:1 and rubble that particle diameter is less than 5mm form.The joint filling sand that the present invention uses must not be used damp sand, and should make the without hindrance whole gap of filling up between tile 11 every ground of joint filling sand locate 12.After filling, with mallet, the upper surface of tile 11 and joint filling sand is arranged smooth.
Further, leveling layer 21 of the present invention is mixed and is paved into fine sand by cement, and the volume ratio between described cement and fine sand is 1～1.5:12～16, and wherein, the mud content in fine sand is less than 2%, clod content is less than 1%, moisture content is less than 3%.Preferably, the coefficient of permeability of described leveling layer is at least 2.0 * 10
-2cm/s, thickness are 30～50mm.Thus for ground layer 1 the tile 11 that catchment provides a preferably holding plane layer.
On the other hand, basic unit 22 of the present invention is paved into by graded broken stone or pervious concrete, and thickness is not less than 100mm.Particularly, basic unit 22 select there is sufficient intensity, water permeability is good, water stability is good material, for example, graded broken stone or pervious concrete.During actual use, according to the difference of functional performance, the material of basic unit 22 can adopt graded broken stone or pervious concrete.The scleroid rubble of the general employing of graded broken stone, for example, adopt strong but pliable in texture, wear-resisting broken granite or limestone, and graded broken stone is applicable to the base layer construction of nonmotorized vehicle lane, and thickness should not be less than 100mm.
Further, described rainwater-collecting layer 3 is for laying the macadam of plastic drainage French drain 31, the rainwater oozing under 31 pairs of french drains is collected water conservancy diversion, one end of french drain 31 can arrange gathering-device (not shown), rainwater can be guided to rainwater in reservoir and recycle by french drain 31, or be guided in catch-basin, enter side by side municipal pipeline.Further, described bed course 4 for thickness be 40～50mm medium sand or coarse sands layer, and the mud content in bed course 4 is less than 5%, clod content is less than 2%, moisture content is less than 3%.Thus, can prevent from infiltrating the water of roadbed or underground water because capillarity rises, and can alleviate the stable impact of moisture subgrade frost road pavement structural entity, in the present embodiment, the material of bed course 4 preferably adopts the good medium sand of water permeability or coarse sand.
Particularly, operating principle of the present invention and work progress are:
The present invention is the water-permeable pavement structure that the conventional raw materials such as application tile, rubble are mated formation and formed, it on and lower structure mainly comprises: ground catchments layer 1, filter layer 2, rainwater-collecting layer 3, bed course 4 and original subgrade layer 5.
A. layer catchments on ground: by tile 11, be vertically arranged side by side and (be understood that for those skilled in the art, tile 11 can longitudinally vertically be arranged, also can fore-and-aft tilt arrange, the upper surface of a plurality of longitudinal tiles forms road structure), the place, gap 12 that tile is 11 is tamped by rubble and dry fine sand, rainwater can flow into the rubble gap between tile facade underground, and rubble and dry fine sand can play preliminary filtration and the effect purifying water.Every row's tile 11 can adopt side-by-side alignment to lay, also can be according to being staggered, and the opening direction of tile also can be adjusted at any time, can be combined into various patterns and pattern, attractive in appearance and practical.
B. filter layer: this layer is respectively leveling layer 21He basic unit 22 from top to bottom.
1. leveling layer 21 is paved into by cement and fine sand or rock ballast, and cement and fine sand volume ratio 1～1.5:12～16, be less than 2% by the mud content of sand; Clod content is less than 1%; Moisture content is less than 3%.The coefficient of permeability of bonding leveling layer should reach 2.0 * 10
-2cm/s, thickness is 30～50mm;
2. basic unit 22 should select there is sufficient intensity, water permeability is good, water stability is good material, preferably, basic unit 22 should adopt graded broken stone or pervious concrete.According to the difference of functional performance, base material can adopt graded broken stone or pervious concrete.Graded broken stone of the present invention preferably adopts scleroid rubble, strong but pliable in texture, wear-resisting broken granite or limestone for example, and graded broken stone is applicable to the base layer construction of nonmotorized vehicle lane, and thickness is not less than 100mm.
C. rainwater-collecting layer 3 is for laying the macadam of plastic drainage French drain 31, the rainwater oozing under 31 pairs of plastic drainage French drains is collected water conservancy diversion, one end of french drain 31 can arrange gathering-device (not shown), rainwater can be guided to rainwater in reservoir and recycle by french drain 31, or be guided in catch-basin, enter side by side municipal pipeline.
D. bed course: prevent from infiltrating the water of roadbed or underground water and rise because of capillarity, alleviate the stable impact of moisture subgrade frost road pavement structural entity, the material of bed course 4 of the present invention adopts the good medium sand of water permeability or coarse sand, and mud content is less than 5%; Clod content is less than 2%; Moisture content is less than 3%, and thickness is 40～50mm.
E. original subgrade layer is also former soil layer.
The work progress of permeable pavement structure of the present invention is:
A. preparation of construction: according to designing requirement unwrapping wire, and prune job place, do good material, instrument preparation.
B. roadbed is processed: with tamping machine or road roller, the former soil layer of roadbed is tamped or compacting, formed original subgrade layer.
C. setting cushion: mud content is less than to 5% medium sand or coarse sand and is laid on original subgrade layer; The making of bed course should be even, smooth, closely knit.On the bed course having paved, must not there is any disturbance.
D. lay rainwater-collecting layer: one deck rubble that first laying depth is 5～10mm on bed course, then on rubble, lay plastic drainage French drain; French drain one end is communicated with recovery reservoir or catch-basin (not shown).The other end can be connected with other french drains, forms subsurface stormwater french drain network.French drain is the preferably coated good geotextiles of water permeability around.After weeper drain sets, the rubble that continuation laying depth is 100～200mm.
E. lay basic unit: paving thickness is not less than the graded broken stone layer of 100mm on rainwater-collecting layer, be bulldozed rear water spray compacting and form basic unit; Ratio flat, rectangular particle diameter in rubble is less than 10%, in rubble, should not contain other materials such as ball clay, plant.Can adopt land leveller or other suitable facility that rubble is paved equably on predetermined width, surface should be smooth, and have the road camber of regulation.
Or on rainwater-collecting layer, paving thickness is not less than the pervious concrete basic unit of 100mm, adopts mechanical agitation, pervious concrete substrate surface should be smooth, avoids strongly vibrating.
F. lay leveling layer: after cement and rock ballast or fine sand are mixed, add a small amount of water, be layered on the top of basic unit, pave into the leveling layer that thickness is 30～50mm; Paving of leveling layer can adopt scraper plate method.
G. lay the ground layer that catchments: tile longitudinal arrangement, above leveling layer, is formed to the ground layer that catchments, and the tile spacing distance of described longitudinal arrangement is 5～10mm, and fill with joint filling sand at tile interval.Described joint filling sand comprises that volume ratio is the mixture of the dry fine sand of 3:1～1.5:1 and the rubble formation that particle diameter is less than 5mm.Sand must not use damp sand, so that can without hindrancely fill up the whole gap between brick every ground.After filling, with mallet, tile and joint filling sandstone are arranged smooth.
Technique scheme of the present invention, has mainly applied the conventional materials such as tile, rubble and has carried out rainwater on road surface collection, and by being arranged on the permeable and collection structure of underground stratiform, jointly complete rainwater collection or under ooze.Rainwater is permeated the ground by porous pavement, can recharge of groundwater resource, reduce road runoff coefficient, and cut down city peak flood flow, alleviate the burden of urban rainwater row drop system.By rainwater-collecting, also can solve part life or gardens problem of water consumption, economic environmental protection.The gas permeability of porous pavement also, to regulating temperature, the humidity of urban surface environment, is improved urban ecological environment and is had positive effect.This road surface good water permeability, intensity be high, firmly without independent maintenance, and morphological appearance, can be widely used in the nonmotorized vehicle lanes such as road, garden, park, community's sidewalk, sidewalk, cycleway.
It should be noted that, the present invention is according to the difference of functional performance, and described base material can adopt graded broken stone, pervious concrete or mode that both combine.In addition, as without rainwater-collecting or be guided to pipeline, also can not adopt the weeper drain of mating formation, and the method that adopts rainwater to ooze under directly makes it flow directly into ground water regime.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement the specific embodiment of the present invention; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (6)
1. a permeable pavement structure, it is characterized in that: described permeable pavement structure comprise successively from top to bottom by longitudinal tile (11) arrange the ground forms catchment layer (1), the filter layer (2) being formed by dank material, in establish the rainwater-collecting layer (3) of weeper drain (31), and bed course (4) and original subgrade layer (5), wherein, described filter layer (2) also comprises the leveling layer (21) on upper strata and the basic unit (22) of lower floor.
2. permeable pavement structure according to claim 1, is characterized in that: the tile (11) catchmenting in layer (1) in described ground is vertical longitudinal arrangement or inclination longitudinal arrangement, and the gap between adjacent tiles is tamped by rubble and/or fine sand.
3. permeable pavement structure according to claim 1, it is characterized in that: described leveling layer (21) is mixed and is paved into fine sand by cement, volume ratio between described cement and fine sand is 1～1.5:12～16, wherein, the mud content in fine sand is less than 2%, clod content is less than 1%, moisture content is less than 3%.
4. permeable pavement structure according to claim 3, is characterized in that: the coefficient of permeability of described leveling layer is at least 2.0 * 10
-2cm/s, thickness are 30～50mm.
5. permeable pavement structure according to claim 1, is characterized in that: described basic unit (22) is paved into by graded broken stone or pervious concrete, and thickness is not more than 100mm.
6. permeable pavement structure according to claim 1, is characterized in that: described bed course (4) is 40～50mm medium sand or coarse sands layer, and the mud content in bed course (4) is less than 5%, clod content is less than 2%, moisture content is less than 3%.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887616A (en) * | 2016-04-13 | 2016-08-24 | 南开大学 | Method for reinforcing water absorption by paving biochar under sponge city pavement |
| CN107021539A (en) * | 2017-03-13 | 2017-08-08 | 河海大学 | It is a kind of can catching heavy metal porous pavement hybrid system |
| CN108086088A (en) * | 2017-11-29 | 2018-05-29 | 中科联化有限公司 | A kind of environment friendly pervious Road System of new type colorful |
| CN109457566A (en) * | 2018-12-29 | 2019-03-12 | 江苏绿和环境科技有限公司 | A kind of assembled gap porous pavement |
| CN112626958A (en) * | 2020-11-25 | 2021-04-09 | 江苏冠懋绿化工程有限公司 | Gardens permeable pavement structure |
| CN113355975A (en) * | 2021-06-24 | 2021-09-07 | 东华大学 | Water purification afforestation integral type cavernosum structure of mating formation that permeates water |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887616A (en) * | 2016-04-13 | 2016-08-24 | 南开大学 | Method for reinforcing water absorption by paving biochar under sponge city pavement |
| CN105887616B (en) * | 2016-04-13 | 2018-06-26 | 南开大学 | A kind of method that sponge urban ground strengthens water suction by underlay charcoal |
| CN107021539A (en) * | 2017-03-13 | 2017-08-08 | 河海大学 | It is a kind of can catching heavy metal porous pavement hybrid system |
| CN108086088A (en) * | 2017-11-29 | 2018-05-29 | 中科联化有限公司 | A kind of environment friendly pervious Road System of new type colorful |
| CN109457566A (en) * | 2018-12-29 | 2019-03-12 | 江苏绿和环境科技有限公司 | A kind of assembled gap porous pavement |
| CN112626958A (en) * | 2020-11-25 | 2021-04-09 | 江苏冠懋绿化工程有限公司 | Gardens permeable pavement structure |
| CN113355975A (en) * | 2021-06-24 | 2021-09-07 | 东华大学 | Water purification afforestation integral type cavernosum structure of mating formation that permeates water |
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