CN103758201B - Band floods the clean integrated apparatus of surface flow rain-water accumulating and the method for culvert pipe - Google Patents

Band floods the clean integrated apparatus of surface flow rain-water accumulating and the method for culvert pipe Download PDF

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CN103758201B
CN103758201B CN201410014835.2A CN201410014835A CN103758201B CN 103758201 B CN103758201 B CN 103758201B CN 201410014835 A CN201410014835 A CN 201410014835A CN 103758201 B CN103758201 B CN 103758201B
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China
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flow
pipe
wetland unit
rain
culvert pipe
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CN201410014835.2A
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Chinese (zh)
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CN103758201A (en
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杜晓丽
高参
李俊奇
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北京建筑大学
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108Rainwater harvesting
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The present invention relates to the clean integrated apparatus of surface flow rain-water accumulating and method that band floods culvert pipe, this device comprises preliminary sedimentation room (1) and wetland unit (2), and surface flow rainwater enters wetland unit (2) by Perforated clapboard (4) after preliminary sedimentation room (1) preliminary sedimentation; Be arranged side by side in wetland unit (2) culvert pipe (3) of boring a hole, and culvert pipe (3) crosses the both sides of wetland unit (2), and two ends are provided with the plug (12) of perforation; Wetland unit (2) comprises gravel blanket (9), sand filter blanket (8) and plantation soil layer (7), buries perforated drain pipe (5) in gravel blanket (9) underground.This device and method can remove particle in runoff rainwater and dissolubility pollutant, realizes the removal of pollutant in rainfall runoff; Rainwater after process is saved in and culvert pipe (3) inner in device, not only for wetland plant growth, can also flood culvert pipe two ends and seep water to Soil Surrounding, reach the object continuing self-restraint recharge of groundwater by wetland inside.

Description

Band floods the clean integrated apparatus of surface flow rain-water accumulating and the method for culvert pipe
Technical field
What the present invention relates to that band floods culvert pipe stores clean Integral rain wetland groove and the method for the treatment of runoff rainwater thereof, floods the clean integrated apparatus of surface flow rain-water accumulating and the method for culvert pipe in particular to a kind of band.
Background technology
Rainwater is the important component part in city water cycle and the regional water circulating system, to adjustment, recharge of groundwater resource, improves the ecological environment that it is very crucial to play a part.Along with China's urbanization step is accelerated, city Permeable stratum area increases day by day, and the natural circulation of rainwater is on the hazard, and result in following problem.
(1) waterlogging takes place frequently: the construction of waterproof pavement has blocked rainwater infiltration passage, and rain penetration amount is reduced, and causes the increase of runoff peak flow, concentration time reduction, finally makes drainage pipeline networks can't bear the heavy load, cause waterlogging to take place frequently.
(2) runoff pollution is serious: waterproof urban surface becomes the accumulation area of various pollutant in mankind's activity, and pollutant washes away at rainfall runoff and finally enters urban water-body or part permeates the ground down, to urban water-body with infiltrate soil and cause severe contamination.
(3) rainwater resource runs off in a large number: China is the country of water resource critical shortage, and the quickening of urbanization step makes China city face severeer water shortage problem.But occur for preventing waterlogging, the drainage system against rain of China runs through the guiding theory of " arranging soon " all the time, a large amount of rainwater resource runs off in vain, not only can not in time recharge of groundwater, alleviate shortage of water resources present situation, but also add the burden of drainage pipeline networks, Wastewater Treatment Plant and water environment.
(4) deterioration of the ecological environment: while the expansion of city large area, break original ecological balanced system, cause bio-diversity to reduce, and due to the souring of rainfall runoff, also can cause the phenomenon such as the soil erosion, vegetation deterioration, nature, the human landscape are worth and create negative effect.Meanwhile, the increase of waterproof ground scale makes underground water can not get supplementing in time, have impact on the natural water circulation in city.
Visible, in urbanization process, promote that the natural circulation of rainwater is significant.The natural cycle system of rainwater builds to be needed to change original " arranging soon " thinking, oozes, inereasing water area under increasing rainwater, finally reaches the object of the reduction of discharging of rainwater, peak clipping and recharging groundwater.On the other hand, along with runoff Rainwater Quality pollutes aggravation, the purification of runoff Rainwater Quality is significant to the pollution of water body, soil to cutting down it.Therefore, the stagnant of surface flow rainwater stores and purifies the natural circulation of rainwater particularly important.
Such as application number is the Chinese invention patent of 201210335370.1, it discloses a kind of novel Glassed swale and the method for the treatment of runoff rainwater thereof, novel Glassed swale comprises vegetable layer and shallow ridges, and shallow ridges comprises bottom shallow ridges and side slope, is embedded with and oozes comb bottom shallow ridges.Along side slope to flowing after surface flow rainwater enters shallow ridges, purify by delay, vegetation filtration, absorption and osmosis diameter stream, moiety aggregation oozes comb in shallow ridges bottom design, the transmission of shallow ridges, filtration and penetrating power is made to obtain significant lifting, and floor space is little, compact conformation, but the rainwater after being cleaned in this invention is penetrated into bottom soon, be difficult to deposit.
Such as application number is the Chinese invention patent of 201010277742.0 again, it discloses that a kind of early-stage rainwater is collected, shunting, peak clipping and ecological purification method.Rainwater enters storm detention tank by municipal storm sewer, by the automatic control of pump, is separated and sends into earth's surface grass planting ditch by polluting comparatively serious initial stage storm runoff and carry out ecological purification and irrigation on the spot; Later stage can enter municipal pipeline containing the large discharge rainwater that pollutant is very low or directly enter Landscape River and utilize.This method is assisted mutually with surrounding Afforestation Landscape, and the present invention can collect, store the effective isolation of purified of heavy rain, and floor space is little, can automatically control.But the present invention needs the assistance of multiple department, and the cost built is higher.
Summary of the invention
The object of this invention is to provide the clean integrated apparatus of surface flow rain-water accumulating and method that a kind of band floods culvert pipe, the particle in runoff rainwater and dissolubility pollutant can be removed, realize the removal of pollutant in rainfall runoff, rainwater after part process can be saved inner in device and flood in culvert pipe, wetland plant is not only can be used for grow, culvert pipe two ends can also be flooded by wetland inside to seep water to Soil Surrounding, reach the object continuing self-restraint recharge of groundwater; The multi objective control of rainfall runoff water quality, the water yield can be realized by this device.
In order to realize above-mentioned purpose of design, the scheme that the present invention adopts is as follows:
Band floods the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe, and this device comprises and is placed in preliminary sedimentation room in a casing and wetland unit, and directly over preliminary sedimentation room, top is provided with rain perforaled strainer; The culvert pipe of multiple perforation is arranged in wetland unit.This device and method can remove particle in runoff rainwater and dissolubility pollutant, realize the removal of pollutant in rainfall runoff, Partial cleansing rear runoff rainwater can also be saved inner in device and flood in culvert pipe, not only can for wetland plant growth, can also continue, to Soil Surrounding infiltration, to reach the object continuing self-restraint recharge of groundwater by flooding culvert pipe two ends after rainfall terminates; The multi objective control of rainfall runoff water quality, the water yield can be realized by this device.
Preferably, Perforated clapboard is provided with between described preliminary sedimentation room and wetland unit.Preliminary sedimentation room and band flood culvert pipe and store clean integrated wetland unit and adopt Perforated clapboard to separate, and the height of Perforated clapboard groove is lower than the top of above-mentioned casing, directly enter wetland unit when amount of rainfall is larger than the height of Perforated clapboard groove then to be discharged by bleed off pipe, thus the plant avoided in wetland unit is submerged.
Preferably, arrange in described wetland unit and multiplely flood perforation culvert pipe, flood the position of perforation culvert pipe lower than perforated drain pipe outlet opening, rainwater through sand filter blanket purification can store in culvert pipe, continue infiltration by culvert pipe two ends perforation plug to Soil Surrounding after rainfall terminates, reach the object of supplementary recharging groundwater.The space that in prior art, filler catchments much smaller than the water storage space flooding perforation culvert pipe, thus makes culvert pipe add the water retention capacity of Rain-fed wetland.
In above-mentioned either a program preferably, runoff rainwater is received in described preliminary sedimentation room, and is removed by the particle in runoff rainwater after precipitation.
In above-mentioned either a program preferably, described wetland unit is equipped with gravel blanket, sand filter blanket and plantation soil layer from the bottom to top, plantation soil layer is planted and is implanted with plant.The benefit that gravel blanket, sand filter blanket and plantation soil layer carry out laying according to order is from bottom to top, the rainwater entering preliminary sedimentation indoor can slowly enter into wetland unit and then infiltrate sand filter blanket after the damming of Perforated clapboard, the rainwater in sand filter blanket through sand filter blanket retain and the metabolism of upper microorganism be purified after slowly penetrate into the absorption of plantation soil layer in order to plant.Wherein sand-gravel cushion plays propping sand filtering layer and reserves certain space to place perforated drain pipe.
In above-mentioned either a program preferably, described Perforated clapboard is a concave shape plate, and its surface is provided with multiple perforation.The rainwater entering preliminary sedimentation indoor can slowly enter into wetland unit and then infiltrate sand filter blanket after the damming of Perforated clapboard, and the rainwater in sand filter blanket slowly penetrates into the absorption of plantation soil layer in order to plant after the impurity and purification of sand filter blanket.
In above-mentioned either a program preferably, the height of described Perforated clapboard groove is lower than casing top; Perforated clapboard groove is higher than plantation soil layer top.
In above-mentioned either a program preferably, described Perforated clapboard lays geotextiles near sand filter blanket side, in order to avoid the gravel in wetland unit enters preliminary sedimentation room by Perforated clapboard perforation, reduces preliminary sedimentation room sediment space.
In above-mentioned either a program preferably, flow or blow over and cover completely perforated drain pipe in described gravel blanket, the outlet opening of perforated drain pipe is higher than culvert pipe.
In above-mentioned either a program preferably, described perforated drain pipe connects to form by inner perforated pipe with externally to the sealed tube of upper bending, flows or blow over and cover completely the outer wall perforation in gravel blanket, and the part exceeding casing is the pipe of sealing.During light rain, rainfall runoff flow be less than band flood culvert pipe store clean Integral rain wetland unit ooze accumulation of energy power time, rainwater enters wetland purification unit by the perforation of Perforated clapboard, current enter wetland unit in lateral infiltration mode, wetland water flow inside direction is horizontal flow and upward flow, and wetland unit internal liquid level constantly rises, during liquid level position externally ported to device perforated drainage pipe, through the rainwater of wetland unit purification, drain into subsurface stormwater pipeline by perforated drain pipe; Moderate rain or when raining heavyly, rainfall runoff flow be greater than band flood culvert pipe store clean Integral rain wetland unit ooze accumulation of energy power time, rainwater does not enter wetland purification unit by means of only the perforation of Perforated clapboard, the groove overflow also surmounting Perforated clapboard by top, preliminary sedimentation room enters wetland purification unit, rainwater enters wetland unit with lateral infiltration and Vertical Infiltration complex method, exceedes the rainwater that wetland purification unit oozes the amount of storing and drains into subsurface stormwater pipeline from bleed off pipe.When wetland unit internal liquid level rises to the outlet opening position of device perforated drainage pipe, through the rainwater of wetland unit purification, drain into subsurface stormwater pipeline by perforated drain pipe.
In above-mentioned either a program preferably, described outlet opening is concordant with the top of sand filter blanket.The outlet opening height of perforated drain pipe is concordant with the top of sand filter blanket, ensure that the rainwater entering wetland unit can not exceed plantation soil layer, thus ensure that the safety of plant in plantation soil layer.
In above-mentioned either a program preferably, the side of described wetland unit is provided with bleed off pipe, bleed off pipe and outlet opening homonymy.Moderate rain or when raining heavyly, rainfall runoff flow be greater than band flood culvert pipe store clean Integral rain wetland unit ooze accumulation of energy power time, rainwater does not enter wetland purification unit by means of only the perforation of Perforated clapboard, the groove overflow also surmounting Perforated clapboard by top, preliminary sedimentation room enters wetland purification unit, rainwater enters wetland unit with lateral infiltration and Vertical Infiltration complex method, exceed the rainwater that wetland purification unit oozes the amount of storing and drain into subsurface stormwater pipeline from bleed off pipe, ensure that the plant of plantation soil layer can not be flooded due to excessive rainfall.
In above-mentioned either a program preferably, the outlet of described bleed off pipe is higher than plantation soil layer.Exceed the rainwater that wetland purification unit oozes the amount of storing and drain into subsurface stormwater pipeline from bleed off pipe, ensure that the plant of plantation soil layer can not be flooded due to excessive rainfall.
In above-mentioned either a program preferably, the tube wall of described culvert pipe is bored a hole, its outer wall is enclosed with geotextiles.The outer wall of culvert pipe wraps up geotextiles, effectively can prevent tiny gravel from entering culvert pipe inside, avoid culvert pipe to lose water storage space.
In above-mentioned either a program preferably, the two ends of described culvert pipe pass casing, and its two ends add perforation plug.Install perforation plug additional at the two ends of culvert pipe, ensure that rainfall terminates retaining in rear culvert pipe and slowly infiltrates in Soil Surrounding, continue recharging groundwater.
In above-mentioned either a program preferably, described plug is bored a hole, its outer wrap has geotextiles, avoids the outside soil of device and enters blocking culvert pipe in culvert pipe inside from culvert pipe two ends, make culvert pipe lose the effect of retaining.
Another aspect of the present invention also provides a kind of method adopting above-mentioned band to flood the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe, comprises the steps:
Make Glassed swale transfer surface flow rainwater or road rain water footpath to flow to rain perforaled strainer and flow into preliminary sedimentation room, during light rain, rainfall runoff flow be less than wetland unit ooze accumulation of energy power time, rainwater enters wetland unit by the perforation of Perforated clapboard, and current enter wetland unit in lateral infiltration mode; Wherein, wetland unit water flow inside direction is horizontal flow and upward flow, and wetland unit internal liquid level constantly rises, and when liquid level is to outlet opening position, through the rainwater of wetland unit purification, drains into subsurface stormwater pipeline by perforated drain pipe.Moderate rain or when raining heavyly, make rainfall runoff flow be greater than wetland unit ooze accumulation of energy power time, rainwater does not enter wetland unit by means of only the perforation of Perforated clapboard, the groove overflow also surmounting Perforated clapboard by the top of preliminary sedimentation room enters wetland unit, rainwater enters wetland unit with lateral infiltration and Vertical Infiltration complex method, exceedes the rainwater that wetland unit oozes the amount of storing and drains into subsurface stormwater pipeline from bleed off pipe; Wherein, when wetland unit internal liquid level rises to outlet opening position, through the rainwater of wetland unit purification, drain into subsurface stormwater pipeline by perforated drain pipe.
In sum, operating principle of the present invention is: Glassed swale transfers surface flow rainwater or road rain water footpath flow to rain perforaled strainer inflow preliminary sedimentation room, during light rain, rainfall runoff flow be less than band flood culvert pipe store clean Integral rain wetland unit ooze accumulation of energy power time, rainwater enters wetland purification unit by the perforation of Perforated clapboard, current enter wetland unit in lateral infiltration mode, wetland water flow inside direction is horizontal flow and upward flow, wetland unit internal liquid level constantly rises, during liquid level position externally ported to device perforated drainage pipe, through the rainwater of wetland unit purification, subsurface stormwater pipeline is drained into by perforated drain pipe, moderate rain or when raining heavyly, rainfall runoff flow be greater than band flood culvert pipe store clean Integral rain wetland unit ooze accumulation of energy power time, rainwater does not enter wetland purification unit by means of only the perforation of Perforated clapboard, also surmount Perforated clapboard by top, preliminary sedimentation room and enter wetland purification unit by groove overflow, rainwater enters wetland unit with lateral infiltration and Vertical Infiltration complex method, exceedes the rainwater that wetland purification unit oozes the amount of storing and drains into subsurface stormwater pipeline from bleed off pipe.When wetland unit internal liquid level rises to device perforated drainage pipe externally ported position, through the rainwater of wetland unit purification, drain into subsurface stormwater pipeline by perforated drain pipe.
Above-mentioned two situations, wetland unit inside is in floodage, Partial cleansing rear rainfall runoff all can be made to store store in device inside for wetland plant growth, and make to flood culvert pipe inside delay purification runoff rainwater, it is infiltrated Soil Surrounding from two ends perforation plug, and rainfall terminates rear sustainable recharging groundwater.
Accompanying drawing explanation
Fig. 1 is according to the cross-sectional configuration schematic diagram flooding the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe and an embodiment of method with a kind of band of the present invention.
Fig. 2 is the structural representation flooding the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe and Fig. 1 middle punch dividing plate of method according to band of the present invention.
Fig. 3 is the top view flooding the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe and Fig. 1 of method according to band of the present invention.
Fig. 4 is the top view flooding the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe and Fig. 1 middle punch gutter of method according to band of the present invention.
Number in the figure illustrates:
Preliminary sedimentation room 1, wetland unit 2, culvert pipe 3, Perforated clapboard 4, perforated drain pipe 5, bleed off pipe 6, plantation soil layer 7, sand filter blanket 8, gravel blanket 9, plant 10, rain perforaled strainer 11, plug 12, outlet opening 13.
Detailed description of the invention
In order to understand the clean integrated apparatus of surface flow rain-water accumulating and the method for flooding culvert pipe according to band of the present invention better, describing below in conjunction with accompanying drawing and flooding the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe and the specific embodiment of method according to band of the present invention.
With reference to figure 1, flood the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe and the overall structure schematic diagram of method according to band of the present invention.Band floods the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe, and this device comprises and is placed in preliminary sedimentation room 1 in a casing and wetland unit 2, and directly over preliminary sedimentation room 1, top is provided with rain perforaled strainer 11; The culvert pipe 3 of multiple perforation is arranged in wetland unit 2.This device and method can remove particle in runoff rainwater and dissolubility pollutant, realize the removal of pollutant in rainfall runoff, Partial cleansing rear rainwater can also be saved in and perforation culvert pipe inner in device, not only can for wetland plant growth, the plug 12 also flooding the culvert pipe 3 two ends perforation of perforation by wetland unit 2 inside, to Soil Surrounding infiltration, reaches the object continuing self-restraint recharge of groundwater; The multi objective control of rainfall runoff water quality, the water yield can be realized by this device; Solve that waterlogging takes place frequently, runoff pollution is serious, rainwater resource runs off in a large number and the technical problem of ecological environment heavy damage.Adopt filler to catchment in prior art, and the space that filler catchments is much smaller than the water storage space flooding perforation culvert pipe, thus makes culvert pipe add the water retention capacity of Rain-fed wetland.
In the present embodiment, Perforated clapboard 4 is provided with between preliminary sedimentation room 1 and wetland unit 2.Preliminary sedimentation room 1 and band flood culvert pipe and store clean integrated wetland unit 2 and adopt Perforated clapboard 4 to separate, and the height of Perforated clapboard 4 groove is lower than the top of above-mentioned casing, directly enter wetland unit 2 when amount of rainfall is larger than the height of Perforated clapboard 4 groove then to be discharged by bleed off pipe 6, thus the plant 10 avoided in wetland unit 2 is submerged.
In the present embodiment, the casing top directly over wetland unit 2 is uncovered, absorbs sunlight sufficiently in order to plant 10, is conducive to plant 10 and better grows.
In the present embodiment, wetland unit 2 is equipped with gravel blanket 9, sand filter blanket 8 and plantation soil layer 7 from the bottom to top, plantation soil layer 7 is planted and is implanted with plant 10.The benefit that gravel blanket 9, sand filter blanket 8 and plantation soil layer 7 carry out laying according to order is from bottom to top, enter rainwater in preliminary sedimentation room 1 after primary deposition, slowly enter into after the damming of Perforated clapboard 4 wetland unit 2 then side direction infiltrate sand filter blanket 8, the rainwater in sand filter blanket 8 slowly upwards penetrates into the absorption of plantation soil layer 7 in order to plant 10 after the impurity and purification of sand filter blanket 8.Wherein sand-gravel cushion 9 plays propping sand filtering layer 8 and reserves certain space to place perforated drain pipe 5.
In the present embodiment, the height of Perforated clapboard 4 groove is lower than casing top; Perforated clapboard 4 groove is higher than plantation soil layer 7 top.
In the present embodiment, Perforated clapboard 4 lays geotextiles near the side of wetland unit 2, in order to avoid the gravel of wetland unit 2 sand filter blanket 8 enters preliminary sedimentation room 1 by Perforated clapboard 4 perforation, reduces the sediment space of preliminary sedimentation room 1.
In the present embodiment, flow or blow over and cover completely perforated drain pipe 5 in gravel blanket 9, the outlet opening 13 of perforated drain pipe 5 is higher than the culvert pipe 3 flooding perforation.
In the present embodiment, the outlet of described bleed off pipe 6 is higher than plantation soil layer 7.Exceed the rainwater that wetland purification unit 2 oozes the amount of storing and drain into subsurface stormwater pipeline from bleed off pipe 6, ensure that the plant 10 of plantation soil layer 7 can not be flooded due to excessive rainfall.
In the present embodiment, outlet opening 13 is concordant with the top of sand filter blanket 8.
As shown in Figure 2, in the present embodiment, Perforated clapboard 4 is a concave shape plate, and its surface is provided with multiple perforation.Enter rainwater in preliminary sedimentation room 1 just heavy after can slowly enter into wetland unit 2 after the damming of Perforated clapboard 4 and then infiltrate sand filter blanket 8, the rainwater in sand filter blanket 8 slowly penetrates into the absorption of plantation soil layer 7 in order to plant 10 after the impurity and purification of sand filter blanket 8.As can be seen from this figure, the middle part on Perforated clapboard 4 top is lower, and both sides are slightly higher, thus the rainwater entering into preliminary sedimentation room 1 when ensure that amount of rainfall is larger has been reduced flow when Perforated clapboard 4, reduces the impact to plant 10.
As shown in Figure 4, perforated drain pipe 5 connects to form by inner perforated pipe with externally to the sealed tube of upper bending, flows or blow over and cover completely the outer wall perforation in gravel blanket 9, and the part exceeding casing is the pipe of sealing.During light rain, rainfall runoff flow be less than band flood culvert pipe store clean Integral rain wetland unit 2 ooze accumulation of energy power time, rainwater enters wetland purification unit 2 by the perforation of Perforated clapboard 4, current enter wetland unit 2 in lateral infiltration mode, wetland water flow inside direction is horizontal flow and upward flow, and wetland unit 2 internal liquid level constantly rises, when liquid level is to outlet opening 13 position, device perforated drainage pipe outside, through the rainwater that wetland unit 2 purifies, drain into subsurface stormwater pipeline by perforated drain pipe 5; Moderate rain or when raining heavyly, rainfall runoff flow be greater than band flood culvert pipe store clean Integral rain wetland unit 2 ooze accumulation of energy power time, rainwater does not enter wetland purification unit 2 by means of only the perforation of Perforated clapboard 4, the groove overflow also surmounting Perforated clapboard 4 by top, preliminary sedimentation room 1 enters wetland purification unit, rainwater enters wetland unit 2 with lateral infiltration and Vertical Infiltration complex method, exceedes the rainwater that wetland purification unit oozes the amount of storing and drains into subsurface stormwater pipeline from bleed off pipe 6.When wetland unit internal liquid level rises to outlet opening 13 position of device perforated drainage pipe 5, through the rainwater that wetland unit 2 purifies, drain into subsurface stormwater pipeline by perforated drain pipe 5.
As shown in Figure 3, the side of wetland unit 2 is provided with bleed off pipe 6, bleed off pipe 6 and outlet opening 13 homonymy.Moderate rain or when raining heavyly, rainfall runoff flow be greater than band flood culvert pipe store clean Integral rain wetland unit ooze accumulation of energy power time, rainwater does not enter wetland purification unit by means of only the perforation of Perforated clapboard 4, the groove overflow also surmounting Perforated clapboard 4 by top, preliminary sedimentation room 1 enters wetland purification unit 2, rainwater enters wetland unit 2 with lateral infiltration and Vertical Infiltration complex method, exceed the rainwater that wetland purification unit oozes the amount of storing and drain into subsurface stormwater pipeline from bleed off pipe 6, ensure that the plant 10 of plantation soil layer 7 can not be flooded due to excessive rainfall.
In the present embodiment, the outer wall flooding perforation culvert pipe 3 described in is enclosed with geotextiles.The outer wall flooding perforation culvert pipe 3 wraps up geotextiles, effectively can prevent tiny gravel from entering culvert pipe inside, avoid culvert pipe to lose water storage space.
In the present embodiment, described in flood perforation culvert pipe 3 two ends pass casing, its two ends add the plug 12 of perforation.Install the plug 12 of perforation at the two ends of culvert pipe 3 additional, ensure that rainfall terminates retaining in rear culvert pipe 3 and still can slowly infiltrate in Soil Surrounding, continue recharging groundwater.In the present embodiment, the outer wrap of the plug 12 of perforation has geotextiles.Geotextiles is wrapped up in the outside of the plug 12 of perforation, avoids the outside soil of device and enter blocking culvert pipe in culvert pipe inside from culvert pipe two ends, make culvert pipe 3 lose the effect of retaining.
Another aspect of the present invention also provides a kind of method adopting above-mentioned band to flood the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe, comprises the steps:
Make Glassed swale transfer surface flow rainwater or road rain water footpath to flow to rain perforaled strainer 11 and flow into preliminary sedimentation room 1, during light rain, rainfall runoff flow be less than wetland unit 2 ooze accumulation of energy power time, rainwater enters wetland unit 2 by the perforation of Perforated clapboard 4, and current enter wetland unit 2 in lateral infiltration mode; Wherein, wetland unit 2 water flow inside direction is horizontal flow and upward flow, and wetland unit 2 internal liquid level constantly rises, and when liquid level is to outlet opening 13 position, through the rainwater that wetland unit 2 purifies, drains into subsurface stormwater pipeline by perforated drain pipe 5; Wherein, moderate rain or when raining heavyly, make rainfall runoff flow be greater than wetland unit 2 ooze accumulation of energy power time, rainwater does not enter wetland unit 2 by means of only the perforation of Perforated clapboard 4, also surmount Perforated clapboard 4 by the top of preliminary sedimentation room 1 and enter wetland unit 2 by groove overflow, rainwater enters wetland unit 2 with lateral infiltration and Vertical Infiltration complex method, exceedes the rainwater that wetland unit 2 oozes the amount of storing and drains into subsurface stormwater pipeline from bleed off pipe 6; Wherein, when wetland unit 2 internal liquid level rises to outlet opening 13 position, through the rainwater that wetland unit 2 purifies, drain into subsurface stormwater pipeline by perforated drain pipe 5.
In sum, operating principle of the present invention is: Glassed swale transfers surface flow rainwater or road rain water footpath flow to rain perforaled strainer inflow preliminary sedimentation room 1, during light rain, rainfall runoff flow be less than band flood culvert pipe store clean Integral rain wetland unit 2 ooze accumulation of energy power time, rainwater enters wetland purification unit by the perforation of Perforated clapboard 4, current enter wetland unit in lateral infiltration mode, wetland water flow inside direction is horizontal flow and to upper reaches, wetland unit 2 internal liquid level constantly rises, when liquid level is to device perforated drainage pipe 5 externally ported position, through the rainwater that wetland unit 2 purifies, subsurface stormwater pipeline is drained into by perforated drain pipe 5, moderate rain or when raining heavyly, rainfall runoff flow be greater than band flood culvert pipe store clean Integral rain wetland unit 2 ooze accumulation of energy power time, rainwater does not enter wetland purification unit 2 by means of only the perforation of Perforated clapboard 4, the groove overflow also surmounting Perforated clapboard 4 by top, preliminary sedimentation room 1 enters wetland purification unit 2, rainwater enters wetland unit 2 with lateral infiltration and Vertical Infiltration complex method, exceedes the rainwater that wetland purification unit oozes the amount of storing and drains into subsurface stormwater pipeline from overfall.When wetland unit 2 internal liquid level rises to device perforated drainage pipe 5 externally ported position, through the rainwater of wetland unit purification, drain into subsurface stormwater pipeline by perforated drain pipe.
Above-mentioned two situations, wetland unit inside is in floodage, part rainfall runoff all can be made to store and to store in device inside for wetland plant growth, and make to flood culvert pipe inner retentate portion purification runoff rainwater, it is infiltrated Soil Surrounding from the plug of two ends perforation, and rainfall terminates rear sustainable recharging groundwater.
In addition, the present invention also has: ooze under 1, increasing rainwater, abatement runoff peak value; 2, water-holding capacity is large, abatement runoff volume; 3, there is good filtration scrubbing performance, enter the water stabilization of plantation soil layer and infiltration Soil Surrounding; 4, rainfall terminates the sustainable supplementary recharging groundwater of rainwater of after purification, can not polluted underground water.
It will be apparent to those skilled in the art that any combination that band of the present invention floods the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe and method and comprises each several part in this manual.As space is limited and in order to make the simple and clear of manual, these combinations are not introduced one by one in detail at this, but after having seen this manual, the scope of the present invention that any combination of each several part be made up of this manual is formed is self-evident, does not therefore add and repeats.

Claims (12)

1. band floods the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe, and this device comprises and is placed in preliminary sedimentation room (1) in a casing and wetland unit (2), it is characterized in that: directly over preliminary sedimentation room (1), top is provided with rain perforaled strainer (11); The culvert pipe (3) of multiple perforation is arranged in wetland unit (2); Wetland unit (2) is equipped with gravel blanket (9), sand filter blanket (8) and plantation soil layer (7) from the bottom to top, and upper kind of plantation soil layer (7) is implanted with plant (10); Flow or blow over and cover completely perforated drain pipe (5) in gravel blanket (9), the outlet opening (13) of perforated drain pipe (5) is higher than culvert pipe (3); Perforated drain pipe (5) connects to form by inner perforated pipe with externally to the sealed tube of upper bending, flows or blow over and cover completely the outer wall perforation in gravel blanket (9), and the part exceeding casing is the pipe of sealing.
2. band as claimed in claim 1 floods the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe, it is characterized in that: be provided with Perforated clapboard (4) between preliminary sedimentation room (1) and wetland unit (2).
3. band as claimed in claim 2 floods the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe, it is characterized in that: Perforated clapboard (4) is a concave shape plate, and its surface is provided with multiple perforation.
4. band as claimed in claim 2 floods the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe, it is characterized in that: Perforated clapboard (4) lays geotextiles near sand filter blanket (8) side.
5. band as claimed in claim 2 floods the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe, it is characterized in that: the height of Perforated clapboard (4) groove is lower than casing top; Perforated clapboard (4) groove is higher than plantation soil layer (7) top.
6. band as claimed in claim 1 floods the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe, it is characterized in that: outlet opening (13) is concordant with the top of sand filter blanket (8).
7. band as claimed in claim 1 floods the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe, it is characterized in that: the side of wetland unit (2) is provided with bleed off pipe (6), bleed off pipe (6) and outlet opening (13) homonymy.
8. band as claimed in claim 7 floods the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe, it is characterized in that: higher than plantation soil layer (7) bottom the outlet of bleed off pipe (6).
9. band as claimed in claim 1 floods the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe, it is characterized in that: the tube wall of culvert pipe (3) is bored a hole, and its outer wall is enclosed with geotextiles, and is embedded in sand filter blanket (8).
10. band as claimed in claim 1 floods the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe, and it is characterized in that: the two ends of culvert pipe (3) pass casing, its two ends add plug (12).
11. are with the clean integrated apparatus of surface flow rain-water accumulating flooding culvert pipe as claimed in claim 10, it is characterized in that: the upper perforation of plug (12), its outer wrap has geotextiles.
The method of 12. 1 kinds of clean integrations of surface flow rain-water accumulating, adopts the band according to any one of claim 1-11 to flood the clean integrated apparatus of surface flow rain-water accumulating of culvert pipe, it is characterized in that, comprise the steps:
Make Glassed swale transfer surface flow rainwater or road rain water footpath to flow to rain perforaled strainer (11) and flow into preliminary sedimentation room (1), during light rain, rainfall runoff flow be less than wetland unit (2) ooze accumulation of energy power time, rainwater enters wetland unit (2) by the perforation of Perforated clapboard (4), and current enter wetland unit (2) in lateral infiltration mode; Wherein, wetland unit (2) water flow inside direction is horizontal flow and upward flow, and wetland unit (2) internal liquid level constantly rises, when liquid level is to outlet opening (13) position, through the rainwater that wetland unit (2) purifies, drain into subsurface stormwater pipeline by perforated drain pipe (5);
Moderate rain or when raining heavyly, rainfall runoff flow be greater than wetland unit (2) ooze accumulation of energy power time, rainwater does not enter wetland unit (2) by means of only the perforation of Perforated clapboard (4), the groove overflow also surmounting Perforated clapboard (4) by the top of preliminary sedimentation room (1) enters wetland unit (2), rainwater enters wetland unit (2) with lateral infiltration and Vertical Infiltration complex method, exceedes the rainwater that wetland unit (2) oozes the amount of storing and drains into subsurface stormwater pipeline from bleed off pipe (6); Wherein, when wetland unit (2) internal liquid level rises to outlet opening (13) position, through the rainwater that wetland unit (2) purifies, subsurface stormwater pipeline is drained into by perforated drain pipe (5).
CN201410014835.2A 2014-01-14 2014-01-14 Band floods the clean integrated apparatus of surface flow rain-water accumulating and the method for culvert pipe CN103758201B (en)

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