CN108842546A - A kind of ecological road for sponge city - Google Patents
A kind of ecological road for sponge city Download PDFInfo
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- CN108842546A CN108842546A CN201810686767.2A CN201810686767A CN108842546A CN 108842546 A CN108842546 A CN 108842546A CN 201810686767 A CN201810686767 A CN 201810686767A CN 108842546 A CN108842546 A CN 108842546A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C1/00—Design or layout of roads, e.g. for noise abatement, for gas absorption
- E01C1/002—Design or lay-out of roads, e.g. street systems, cross-sections ; Design for noise abatement, e.g. sunken road
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/221—Kerbs or like edging members, e.g. flush kerbs, shoulder retaining means ; Joint members, connecting or load-transfer means specially for kerbs
- E01C11/222—Raised kerbs, e.g. for sidewalks ; Integrated or portable means for facilitating ascent or descent
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
- E01C11/226—Coherent pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/103—Naturals or landscape retention bodies, e.g. ponds
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of ecological roads for sponge city, including permeable self-cleaning road surface and sunk type ecological purification band, the sunk type ecological purification band is located at the one or both sides on the permeable self-cleaning road surface, it is separated between the permeable self-cleaning road surface and the sunk type ecological purification band by kerbstone, the permeable self-cleaning road surface includes roadbed, underlayment, Drainage Base and self-cleaning surface layer from bottom to top, and the sunk type ecological purification band includes aquifer, initial rainwater filter layer and reservoir.It is stable, applied widely the beneficial effects of the invention are as follows the pollution of urban road initial rainwater, pavement structure can be eliminated, while urban waterlogging can be alleviated, water conservation, adjusting air humidity, fugitive dust is reduced, improve air quality.
Description
Technical field
The invention belongs to water environment Ecological Restoration Project technical fields, are related to a kind of environmental road for sponge city
Face.
Background technique
Sponge city, i.e. city can have in terms of adapting to environmental change and reply as sponge
Good " elasticity ", during rainfall, rainwater can by absorbing, regulating and storing, it is lower infiltration and purification etc. modes accumulate, etc.
It is released to when needs, then the water saved, to irrigate, rinse urban pavement and supplement urban groundwater etc., sea
Continuous city can promote urban ecological system function, reduce the generation of Urban Flood Waterlogging.
The run-off that 12.5mm rainfall is formed before initial rainwater refers to since rainfall forms surface runoff.Contain in initial rainwater
There are a large amount of polluters, some pollutants (such as BOD5) concentration it is close with the influent quality of municipal wastewater treatment plant, certain heavy metals
Content is more than the water inlet of municipal wastewater treatment plant.Therefore, initial rainwater direct emission can pollute water environment, it is necessary to carry out effective
Control mitigates the pollution to environment.
The road component part important as city, when rainfall, generate a large amount of road initial rainwater, road initial rainwater
Pollution sources multiplicity, including atmosphere, road surface itself, mankind's activity, vehicle, medicament etc., these pollution sources itself and between passing through
Interaction, so that road initial rainwater is seriously polluted.Road initial rainwater has become chief city's non-point pollution at present
One of.However, China's most cities road drainage substantially also rests in simple, quick drain mode, and to cut it is dirty,
The measures shortcoming such as delay, purification considers.
CN106351105A discloses a kind of sponge urban water-through road surface, including road surface ontology and is set to road surface ontology two
The gutter of side, the road surface ontology include the pervious asphalt concrete layer set gradually from top to bottom, permeable base course, water storage
Base course and tamping road bed layer.
CN107620240A discloses a kind of sponge urban water-through road surface, for being laid on a native soil layer roadbed, wherein
The porous pavement includes the skid resistant surface set gradually from top to bottom, filter layer, sand stone layer and mortar mixed mud layer, described
Filter layer includes the first tissue layer set gradually from top to bottom, diafiltration steel mesh layer and the second tissue layer, is mixed in the mortar
Multiple permeable through-holes are uniformly provided in dirt bed along the vertical direction.
The above prior art can realize the quick lower infiltration of rainwater, effectively prevent the generation of urban waterlogging, but all neglect
The problem of having omited the pollution of road initial rainwater, rainwater is directly entered Urban Underground water circulation system, to pollute city river, drink
With water head site, the sustainable use of city water resource is influenced.
Summary of the invention
The object of the present invention is to provide a kind of lifes that can eliminate the pollution of urban road initial rainwater for sponge city
State type road surface, the pavement structure is stable, applied widely, while can alleviate that urban waterlogging, water conservation, to adjust air wet
Degree reduces fugitive dust, improves air quality.
In order to solve the above technical problems, the present invention provides a kind of ecological road for sponge city, including it is saturating
Water self-cleaning road surface and sunk type ecological purification band, the sunk type ecological purification band are located at the side on the permeable self-cleaning road surface
Or two sides, it is separated between the permeable self-cleaning road surface and the sunk type ecological purification band by kerbstone.
The permeable self-cleaning road surface includes roadbed, underlayment, Drainage Base and self-cleaning surface layer, the bottom from bottom to top
Base uses lime-fly-ash stabilization soil pellet, and the Drainage Base uses graded gravel, and the wearing course of the self-cleaning surface layer is adopted
With big gap open gradation drainage type OGFC asphalt, waterproof geotextile is laid between the underlayment and Drainage Base.
The sunk type ecological purification band includes aquifer, initial rainwater filter layer and reservoir, the aquifer
Including chamaephyta, hemicryptophyte, cryptophyte and annual plant, the initial rainwater filter layer wraps from top to bottom
Include sandy gravel stratum, planting soil layer, drainage blanket；The reservoir is located at the lower part of drainage blanket, sets filter plate at the top of reservoir, bottom of pond is set
Sand filtering modules.
Preferably, the permeable self-cleaning road surface and the upper surface of the kerbstone are contour.
Preferably, the upper surface of the initial rainwater filter layer is located at the lower surface 400-600mm of the kerbstone.
It is further preferred that the kerbstone is mainly made of water-permeable brick, 5-10mm is spaced between adjacent water-permeable brick, it is described
Water-permeable brick for building waste be made, porosity is permeable to be absorbed as 10-50mm/s between 20-35%.
Preferably, the underlayment is with a thickness of 150-250mm, the Drainage Base with a thickness of 200-350mm, it is described
Self-cleaning surface layer with a thickness of 120-150mm.
Preferably, the gradation partial size of the graded gravel is 26.5-31.5mm.
Preferably, contain TiO in the OGFC asphalt mixture2And diatomite；The TiO2Partial size be 20-40nm,
The partial size of the diatomite is 15-35nm.
It is further preferred that the TiO2Account for the 0.1-0.5% of the OGFC asphalt mixture total weight, the diatom
Soil accounts for the 1.0-2.5% of the OGFC asphalt mixture total weight.
Preferably, the planting soil layer contains biogas residue active carbon, and the biogas residue activated carbon accounts for planting soil total weight
1-5%.
Preferably, the upper epidermis of the sandy gravel stratum sets the coarse sands layer of 300-500mm, and the partial size of the coarse sands layer is 27-
37mm；The bottom of the sandy gravel stratum sets the fine sand layer of 200-400mm, and the partial size of the fine sand layer is 8-14mm.
Preferably, the filter plate bottom sets 3-5 root collector pipe, the end of the collector pipe apart from sand filtering modules bottom with
Lower 300-500mm.
In order to preferably realize technical effect of the invention, the invention also includes self-priming is set in the sand filtering modules of reservoir
It pumps and is used for the maintenance of green plants, road dedusting cooling and the further dirt removed in initial rainwater in aquifer setting spray head
Contaminate object.
In order to preferably collect and utilize rainwater, the invention also includes the tops in reservoir to set discharge outlet, when rainfall is big
When, the clean rainwater of the initial rainwater of purification and later period is delivered to collecting-tank, for recharge of groundwater source or further purification
Afterwards as the domestic water of resident.
In order to guarantee the operational effect of ecological road of the present invention, sunk type ecological purification band should be carried out within every 5 years comprehensive
Maintenance, including replacement planting soil layer, cleaning aquifer filter plate, replacement sand filtering modules etc..
The present invention having the beneficial effect that compared with prior art：
(1) of the invention permeable self-cleaning road surface setting underlayment, Drainage Base and self-cleaning surface layer, it can be achieved that rainwater it is quick
Lower row, meanwhile, nanoscale TiO is added in the wearing course of surface layer2And diatomite, the growth of bacterium can be effectively suppressed, remove rain
Pollutant in water realizes the self-cleaning to surface layer and the purification of initial rainwater.
(2) sunk type ecological purification band setting aquifer, initial rainwater filter layer and reservoir, in quick rainwater harvest
Meanwhile the purified treatment of initial rainwater is realized using the sand filtering modules in initial rainwater filter layer and reservoir；Water storage layer choosing
Different ecological type plant is selected, is designed using the stratification of sunk type ecological purification band, is made full use of environmental resource, improve the steady of system
The degradation efficiency to rain water pollutant can be improved while qualitative；Planting soil layer adds biogas residue active carbon, to initial rainwater
The carry out quick adsorption accumulation of middle pollutant, after rainwater is decorporated, the pollutant accumulated in biogas residue active carbon is through micro- life in soil
Object and root system of plant are degraded, and the regeneration of biogas residue active carbon is completed；Biogas residue active carbon is also used as water-retaining agent simultaneously, meets
The demand of plant and edaphon to moisture.
(3) using drainage pavement, the structure setting of diatomaceous earth containing nano silicone and reservoir, in dry weather, road surface can
To absorb the moisture in reservoir, evaporation steam adjusts pavement temperature and humidity, reduces fugitive dust, improves environmental amenity degree.
(4) " seeping, stagnant, net, use, row " of rainwater may be implemented in ecological road of the invention, in prevention and treatment urban waterlogging
Meanwhile pollution of the initial rainwater to water environment is effectively avoided, permeable self-cleaning pavement structure is stablized, and decrease of noise functions is good, for sea
The construction in continuous city provides technical support.
Specific embodiment
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, below by preferred implementation of the invention
Example is described in detail, to facilitate the technical staff to understand.
Embodiment 1
A kind of ecological road for sponge city, including permeable self-cleaning road surface and sunk type ecological purification band, it is described
Sunk type ecological purification band be located at the one or both sides on the permeable self-cleaning road surface, the permeable self-cleaning road surface and the sinking
It is separated between formula ecological purification band by kerbstone.
The permeable self-cleaning road surface include from bottom to top roadbed, with a thickness of the underlayment of 150mm, with a thickness of 200mm's
Drainage Base and self-cleaning surface layer with a thickness of 120mm, the underlayment use lime-fly-ash stabilization soil pellet, the draining
Base uses gradation partial size for the graded gravel of 26.5mm, and the wearing course of the self-cleaning surface layer uses big gap open gradation drainage type
OGFC asphalt, the TiO for being 20nm containing partial size in the OGFC asphalt mixture2The diatomite for being 15nm with partial size,
The TiO2The 0.1% of the OGFC asphalt mixture total weight is accounted for, the diatomite accounts for the OGFC asphalt mixture gross weight
The 1.0% of amount；Waterproof geotextile is laid between the underlayment and Drainage Base.
The sunk type ecological purification band includes aquifer, initial rainwater filter layer and reservoir, the aquifer
Including chamaephyta, hemicryptophyte, cryptophyte and annual plant, the chamaephyta, bottom surface bud plant, kryptoblast
The planting proportion of plant and annual plant is 1: 5: 3: 2；The initial rainwater filter layer includes sandy gravel stratum, kind from top to bottom
Soil layer, drainage blanket are planted, the upper epidermis of the sandy gravel stratum sets partial size as 27mm, with a thickness of the coarse sands layer of 300mm, the sandy gravel stratum
The partial size that bottom is set is 8mm, and with a thickness of the fine sand layer of 200mm, the planting soil layer contains 1% natural pond of planting soil total weight
Slag active carbon；The reservoir is located at the lower part of drainage blanket, sets filter plate at the top of reservoir, bottom of pond sets sand filtering modules, described
Filter plate bottom sets 3 collector pipes, the end of collector pipe 300mm below sand filtering modules bottom.
The permeable self-cleaning road surface and the upper surface of the kerbstone are contour, the upper table of the initial rainwater filter layer
Face is located at the lower surface 400mm of the kerbstone；The kerbstone is mainly made of water-permeable brick, is spaced between adjacent water-permeable brick
5mm, the water-permeable brick for building waste be made, porosity be 35% between, it is permeable to be absorbed as 50mm/s.
In order to preferably realize technical effect of the invention, the invention also includes self-priming is set in the sand filtering modules of reservoir
It pumps and is used for the maintenance of green plants, road dedusting cooling and the further dirt removed in initial rainwater in aquifer setting spray head
Contaminate object.
In order to preferably collect and utilize rainwater, the invention also includes the tops in reservoir to set discharge outlet, when rainfall is big
When, the clean rainwater of the initial rainwater of purification and later period is delivered to collecting-tank, for recharge of groundwater source or further purification
Afterwards as the domestic water of resident.
In order to guarantee the operational effect of ecological road of the present invention, sunk type ecological purification band should be carried out within every 5 years comprehensive
Maintenance, including replacement planting soil layer, cleaning aquifer filter plate, replacement sand filtering modules etc..
Embodiment 2
A kind of ecological road for sponge city, including permeable self-cleaning road surface and sunk type ecological purification band, it is described
Sunk type ecological purification band be located at the one or both sides on the permeable self-cleaning road surface, the permeable self-cleaning road surface and the sinking
It is separated between formula ecological purification band by kerbstone.
The permeable self-cleaning road surface include from bottom to top roadbed, with a thickness of the underlayment of 250mm, with a thickness of 350mm's
Drainage Base and self-cleaning surface layer with a thickness of 150mm, the underlayment use lime-fly-ash stabilization soil pellet, the draining
Base uses gradation partial size for the graded gravel of 31.5mm, and the wearing course of the self-cleaning surface layer uses big gap open gradation drainage type
OGFC asphalt, the TiO for being 40nm containing partial size in the OGFC asphalt mixture2The diatomite for being 35nm with partial size,
The TiO2The 0.5% of the OGFC asphalt mixture total weight is accounted for, the diatomite accounts for the OGFC asphalt mixture gross weight
The 2.5% of amount；Waterproof geotextile is laid between the underlayment and Drainage Base.
The sunk type ecological purification band includes aquifer, initial rainwater filter layer and reservoir, the aquifer
Including chamaephyta, hemicryptophyte, cryptophyte and annual plant, the chamaephyta, bottom surface bud plant, kryptoblast
The planting proportion of plant and annual plant is 6: 35: 8: 14；The initial rainwater filter layer include from top to bottom sandy gravel stratum,
Planting soil layer, drainage blanket, the upper epidermis of the sandy gravel stratum set partial size as 37mm, with a thickness of the coarse sands layer of 500mm, the sandy gravel stratum
The partial size that sets of bottom as 14mm, with a thickness of the fine sand layer of 400mm, the planting soil layer contains the 5% of planting soil total weight
Biogas residue active carbon；The reservoir is located at the lower part of drainage blanket, sets filter plate at the top of reservoir, bottom of pond sets sand filtering modules, institute
The filter plate bottom stated sets 5 collector pipes, the end of collector pipe 500mm below sand filtering modules bottom.
The permeable self-cleaning road surface and the upper surface of the kerbstone are contour, the upper table of the initial rainwater filter layer
Face is located at the lower surface 600mm of the kerbstone；The kerbstone is mainly made of water-permeable brick, is spaced between adjacent water-permeable brick
10mm, the water-permeable brick for building waste be made, porosity be 20% between, it is permeable to be absorbed as 10mm/s.
In order to preferably realize technical effect of the invention, the invention also includes self-priming is set in the sand filtering modules of reservoir
It pumps and is used for the maintenance of green plants, road dedusting cooling and the further dirt removed in initial rainwater in aquifer setting spray head
Contaminate object.
In order to preferably collect and utilize rainwater, the invention also includes the tops in reservoir to set discharge outlet, when rainfall is big
When, the clean rainwater of the initial rainwater of purification and later period is delivered to collecting-tank, for recharge of groundwater source or further purification
Afterwards as the domestic water of resident.
In order to guarantee the operational effect of ecological road of the present invention, sunk type ecological purification band should be carried out within every 5 years comprehensive
Maintenance, including replacement planting soil layer, cleaning aquifer filter plate, replacement sand filtering modules etc..
Embodiment 3
A kind of ecological road for sponge city, including permeable self-cleaning road surface and sunk type ecological purification band, it is described
Sunk type ecological purification band be located at the one or both sides on the permeable self-cleaning road surface, the permeable self-cleaning road surface and the sinking
It is separated between formula ecological purification band by kerbstone.
The permeable self-cleaning road surface include from bottom to top roadbed, with a thickness of the underlayment of 200mm, with a thickness of 300mm's
Drainage Base and self-cleaning surface layer with a thickness of 130mm, the underlayment use lime-fly-ash stabilization soil pellet, the draining
Base uses gradation partial size for the graded gravel of 28mm, and the wearing course of the self-cleaning surface layer uses big gap open gradation drainage type
OGFC asphalt, the TiO for being 30nm containing partial size in the OGFC asphalt mixture2The diatomite for being 25nm with partial size,
The TiO2The 0.3% of the OGFC asphalt mixture total weight is accounted for, the diatomite accounts for the OGFC asphalt mixture gross weight
The 1.5% of amount；Waterproof geotextile is laid between the underlayment and Drainage Base.
The sunk type ecological purification band includes aquifer, initial rainwater filter layer and reservoir, the aquifer
Including chamaephyta, hemicryptophyte, cryptophyte and annual plant, the chamaephyta, bottom surface bud plant, kryptoblast
The planting proportion of plant and annual plant is 3: 10: 5: 7；The initial rainwater filter layer include from top to bottom sandy gravel stratum,
Planting soil layer, drainage blanket, the upper epidermis of the sandy gravel stratum set partial size as 32mm, with a thickness of the coarse sands layer of 400mm, the sandy gravel stratum
The partial size that sets of bottom as 10mm, with a thickness of the fine sand layer of 300mm, the planting soil layer contains planting soil total weight
3.5% biogas residue active carbon；The reservoir is located at the lower part of drainage blanket, sets filter plate at the top of reservoir, bottom of pond sets sand filtration mould
Block, the filter plate bottom set 4 collector pipes, the end of collector pipe 500mm below sand filtering modules bottom.
The permeable self-cleaning road surface and the upper surface of the kerbstone are contour, the upper table of the initial rainwater filter layer
Face is located at the lower surface 500mm of the kerbstone；The kerbstone is mainly made of water-permeable brick, is spaced between adjacent water-permeable brick
10mm, the water-permeable brick for building waste be made, porosity be 28% between, it is permeable to be absorbed as 30mm/s.
In order to preferably realize technical effect of the invention, the invention also includes self-priming is set in the sand filtering modules of reservoir
It pumps and is used for the maintenance of green plants, road dedusting cooling and the further dirt removed in initial rainwater in aquifer setting spray head
Contaminate object.
In order to preferably collect and utilize rainwater, the invention also includes the tops in reservoir to set discharge outlet, when rainfall is big
When, the clean rainwater of the initial rainwater of purification and later period is delivered to collecting-tank, for recharge of groundwater source or further purification
Afterwards as the domestic water of resident.
In order to guarantee the operational effect of ecological road of the present invention, sunk type ecological purification band should be carried out within every 5 years comprehensive
Maintenance, including replacement planting soil layer, cleaning aquifer filter plate, replacement sand filtering modules etc..
3 test sections are chosen according to three embodiments and are laid with ecological road, and ecological road is continuously monitored
(- 2016.7 months 2016.5 months), after rainfall 15min, rainwater and existing road rainwater in Example reservoir carry out dirty
Object monitoring is contaminated, monitoring result is as follows：
| Group | SS/(mg/L) | CODcr/(mg/L) | TN/(mg/L) | TP/(mg/L) |
| Embodiment 1 | 8.59-8.96 | 15.56-15.13 | 5.19-5.28 | 0.07-0.09 |
| Embodiment 2 | 7.42-7.68 | 17.86-18.00 | 5.30-5.47 | 0.08-0.10 |
| Embodiment 3 | 3.96-4.10 | 10.00-10.50 | 5.23-5.36 | 0.10-0.13 |
| Control group | 50-168 | 62.89-126.51 | 9.82-14.68 | 1.03-2.50 |
It is therefore seen that ecological road of the invention is to SS, COD in initial rainwatercr, the pollutants such as TN and TP have it is good
Good removal effect, while being found in monitoring process, seep slowly under control group rainwater on road surface, run-off is big, because of drop during monitoring
Rainfall is big, and 5 surface gathered waters occurred, and the quick lower infiltration of rainwater may be implemented in the road surface embodiment 1-3, effectively reduces road surface diameter
Flow, road surface is generated without seeping phenomenon in entire monitoring process.
By above experiments have shown that：Permeable self-cleaning road surface setting underlayment, Drainage Base and self-cleaning surface layer of the invention, can
Realize the quick lower row of rainwater, meanwhile, nanoscale TiO is added in the wearing course of surface layer2And diatomite, bacterium can be effectively suppressed
Growth, remove rainwater in pollutant, realize the self-cleaning to surface layer and the purification of initial rainwater；Meanwhile sunk type ecology
Purification zone realizes initial stage using the sand filtering modules in initial rainwater filter layer and reservoir while quick rainwater harvest
The purified treatment of rainwater.
Monitor the air regime discovery at embodiment and control group road surface 50cm, the temperature and humidity on the road surface embodiment 1-3
It has clear improvement compared with control group, wherein pavement temperature reduces 2-5 DEG C, and pavement humidity increases 30-40%.Since the present invention arranges
Water route face, diatomaceous earth containing nano silicone and reservoir structure setting, in dry weather, the water in reservoir is can be absorbed in road surface
Point, evaporation steam adjusts pavement temperature and humidity, reduces fugitive dust.
Therefore, " seeping, stagnant, net, use, row " of rainwater may be implemented in ecological road of the invention, in prevention and treatment urban waterlogging
While, pollution of the initial rainwater to water environment is effectively avoided, permeable self-cleaning pavement structure is stablized, and decrease of noise functions is good, is
The construction in sponge city provides technical support.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention rather than limits, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (10)
1. a kind of ecological road for sponge city, including permeable self-cleaning road surface and sunk type ecological purification band, described
Sunk type ecological purification band is located at the one or both sides on the permeable self-cleaning road surface, the permeable self-cleaning road surface and the sunk type
It is separated between ecological purification band by kerbstone, which is characterized in that the permeable self-cleaning road surface includes road from bottom to top
Base, underlayment, Drainage Base and self-cleaning surface layer, the underlayment use lime-fly-ash stabilization soil pellet, the draining base
Layer uses graded gravel, and the wearing course of the self-cleaning surface layer uses big gap open gradation drainage type OGFC asphalt, described
Waterproof geotextile is laid between underlayment and Drainage Base；The kerbstone is mainly made of water-permeable brick, adjacent water-permeable brick it
Between be spaced 5-10mm；The sunk type ecological purification band includes aquifer, initial rainwater filter layer and reservoir, the storage
Water layer includes chamaephyta, hemicryptophyte, cryptophyte and annual plant, the initial rainwater filter layer from upper and
It down include sandy gravel stratum, planting soil layer, drainage blanket；The reservoir is located at the lower part of drainage blanket, sets filter plate, pond at the top of reservoir
Bottom sets sand filtering modules.
2. ecological road according to claim 1, which is characterized in that the permeable self-cleaning road surface and the kerbstone
Upper surface it is contour, the upper surface of the initial rainwater filter layer is located at the lower surface 400-600mm of the kerbstone.
3. ecological road according to claim 1 or 2, which is characterized in that the water-permeable brick is made for building waste,
Porosity is permeable to be absorbed as 10-50mm/s between 20-35%.
4. ecological road according to claim 1, which is characterized in that the underlayment is with a thickness of 150-250mm, institute
State Drainage Base with a thickness of 200-350mm, the self-cleaning surface layer with a thickness of 120-150mm.
5. ecological road according to claim 1, which is characterized in that the gradation partial size of the graded gravel is
26.5-31.5mm。
6. ecological road according to claim 1, which is characterized in that contain TiO in the OGFC asphalt mixture2With
Diatomite.
7. ecological road according to claim 1, which is characterized in that the TiO2It is total to account for the OGFC asphalt mixture
The 0.1-0.5% of weight；The diatomite accounts for the 1.0-2.5% of the OGFC asphalt mixture total weight.
8. ecological road according to claim 1, which is characterized in that the planting soil layer contains biogas residue active carbon,
The biogas residue activated carbon accounts for the 1-5% of planting soil total weight.
9. ecological road according to claim 1, which is characterized in that the upper epidermis of the sandy gravel stratum sets 300-500mm
Coarse sands layer, the partial size of the coarse sands layer is 27-37mm；The bottom of the sandy gravel stratum sets the fine sand layer of 200-400mm, described thin
The partial size of layer of sand is 8-14mm.
10. ecological road according to claim 1, which is characterized in that the bottom of the filter plate sets 3-5 root and catchments
Pipe, the end of collector pipe 300-500mm below sand filtering modules bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810686767.2A CN108842546A (en) | 2018-06-28 | 2018-06-28 | A kind of ecological road for sponge city |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810686767.2A CN108842546A (en) | 2018-06-28 | 2018-06-28 | A kind of ecological road for sponge city |
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| CN112352493A (en) * | 2020-10-24 | 2021-02-12 | 湖南高尔园林绿化工程有限公司 | Sponge urban ecological moisturizing system and application thereof in urban engineering |
| CN112878134A (en) * | 2021-01-21 | 2021-06-01 | 安徽建开建设工程有限公司 | Highway asphalt pavement and construction method thereof |
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