CN107879559A - The lasting landscape water scenery of low-maintenance and rainwater self-purifying system under overpass - Google Patents
The lasting landscape water scenery of low-maintenance and rainwater self-purifying system under overpass Download PDFInfo
- Publication number
- CN107879559A CN107879559A CN201711315778.1A CN201711315778A CN107879559A CN 107879559 A CN107879559 A CN 107879559A CN 201711315778 A CN201711315778 A CN 201711315778A CN 107879559 A CN107879559 A CN 107879559A
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- rainwater
- water
- maintenance
- overpass
- low
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- 238000012423 maintenance Methods 0.000 title claims abstract description 35
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- 238000000746 purification Methods 0.000 claims abstract description 37
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/086—Drainage arrangements or devices
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
Abstract
The invention provides a kind of lasting landscape water scenery of low-maintenance under overpass and rainwater self-purifying system, including：Overpass rainwater-collecting module, the rainwater buffer module being arranged on below overhead bridge floor, the current wetland being laid on below rainwater buffer module is arranged on the ecological pond in current wetland center, and is arranged on the underground conservation pool of ecological pond side.The lasting landscape water scenery of low-maintenance and rainwater self-purifying system are ingenious in design under this overpass, pass through the cooperation between overpass rainwater-collecting module, rainwater buffer module, current wetland, ecological pond and underground conservation pool, realize the collection of rainwater, purification, save and recycle, solve the problems, such as overpass rainwater be exhausted directly to municipal pipeline and caused pressure is excessive cause surface gathered water and landscape Maintenance Difficulty caused by landscape effect difference and rainwater resource waste.
Description
Technical field
The present invention relates to a kind of self-purifying system, and in particular to the lasting landscape water scenery of low-maintenance and rainwater under a kind of overpass
Self-purifying system.
Background technology
With the continuous expansion in city, the pressure of urban road just increasingly increases, and is dropped so the appearance of overpass is undoubtedly
The low pressure of urban road.Increasing overpass shuttles in city now, has changed into the part that can not be ignored,
So the Greening problem of the rainwater-collecting of overhead bridge floor, purification and Utilizing question and overhead space under bridge is also gradually by people's weight
Depending on.
At present, the common drainage pattern of overpass has two kinds：The first, is that rainwater passes through drainage pipeline after bridge floor collects
It is exhausted directly to road surface, then be discharged to municipal pipeline by road grade again.But when heavy showers occurs, road surface can be caused to accumulate
Water, increase the discharge pressure of municipal pipeline, or even there can be certain potential safety hazard to road traffic.Second, be that rainwater exists
Bridge floor by drainage pipeline is exhausted directly to municipal pipeline after collecting.This drainage pattern can equally be managed in heavy showers weather to municipal administration
Cause very big pressure in road.Further, since the maintenance of landscape is more difficult under urban viaduct, so that many overpass at present
The utilization rate of lower subsidiary space is smaller.Some is even direct to be just used for stacking debris, both have impact on the attractive in appearance of city, has been brought again
Certain potential safety hazard.Now due to not in place to the maintenance management of overpass greening, the Afforestation Landscape under many bridges does not have
To showing well, substantial contribution is wasted.Simultaneously as be negligent of trimming, green plants grown tall can hinder driving sight or
Vehicular traffic is scratched, danger is brought to driver driving.This is also the weight that many people afforest in the presence of query to overpass at present
Want reason.There is important meaning in terms of Afforestation Landscape is while the landscape of beautifying city for improving region environment under overpass
Justice, particularly purification air, windproof cooling, weaken noise, absorb and retain dust, reduce urban heat land effect etc. play it is great
Meaning.
Greenery patches is often because of illumination, pouring, floristics, orographic condition limitation under overpass, the conventional shade tolerance of ground greening compared with
Strong plant (including trees, cover plant etc.), there is certain landscape performance, performance preferably encloses and softening function, this
Class landscape is safeguarded more difficult.Therefore need to combine overpass rainwater-collecting and purification, and establish preferable low-maintenance landscape, enter
And establish water storage-self-purification of water-low-maintenance landscape system.
Publication No.：CN205636879 Chinese patent discloses a kind of " overpass rainwater-collecting, purification and utilization system
Bulk cargo is put ", the device includes ecological drainage tank, filter, tank, rainwater conflux pipe, tank overflow pipe and tank row
Water pipe, the ecological drainage tank are provided with drainage tank case top, and the water inlet of the ecological drainage tank is located at the drainage tank case top
On, ball-cock assembly is provided with the ecological drainage tank, the ball float of the ball-cock assembly can be with the liquid level in the ecological drainage tank
Rise and moved to the water inlet of the ecological drainage tank, replaceable filter is equipped with the side wall and bottom wall of the ecological drainage tank
Net, the bottom of the ecological drainage tank side wall are provided with drainage tank drainpipe or draining valve.The device can collect overpass bridge floor
Rainwater, filtration, purification is carried out to early-stage rainwater and irrigates greenbelt plant under overpass using cleaned rainwater, passed through simultaneously
Plant absorption, adsorption by soil are discharged into municipal rain system again after realizing the filtering of bridge floor rainwater ecological, mitigate the pollution of rainwater on road surface source.
, can be to municipal rain pipe but the unnecessary rainwater of the system is directly discharged into municipal storm sewer due to being purified without botanical system
Road causes further to pollute, and is not easy to the recycling again of rainwater.
In addition, Publication No.：CN203904816U Chinese patent discloses a kind of " overpass rainwater-collecting, irrigation, benefit
To system ", the system includes overpass bridge floor, bridge pier inlet, and spray piping is provided with bridge pier, spray is connected on spray piping
Head；Inlet is connected with sedimentation basin, sets filter layer in sedimentation basin, on sedimentation basin after first interface connection spray pump with shower
Road is connected, and is connected after second interface connection magnetic valve with municipal tap water supply pipeline, with surpassing after the 3rd interface connection ultrafiltrate pump
Filter is connected, and the pure water inlet of ultrafilter is connected with municipal tap water supply pipeline, and the 4th interface of sedimentation basin is sewage discharge
Mouthful.The system is by sedimentation basin to that can be used for the irrigation to greenbelt after ponding preliminary purification；By the effect of ultrafiltration system,
It can be imported tentatively earning water is purified again in sedimentation basin after reaching requirement in municipal makeup Water System, be easy to use
In elsewhere, the recovery, purification and recycling of waste water are accomplished well.But the replacing of filter layer is very tired in system
Difficulty, and spray pump, ultrafiltrate pump are required for outer boundary's offer power to implement, wherein, it is necessary to someone to go to operate ability
Complete, virtually waste human and material resources.
The content of the invention
In view of the shortcomings of the prior art, the present invention proposes a kind of lasting landscape water scenery of low-maintenance under overpass and rainwater certainly
Cleaning system, collection, purification, savings and the utilization that the system possesses rainwater are integrated, solve overpass rainwater and be exhausted directly to
Municipal pipeline and caused pressure is excessive cause surface gathered water and landscape Maintenance Difficulty caused by landscape effect difference and rainwater resource
The problem of waste.
To realize above-mentioned technical proposal, under a kind of overpass provided by the invention the lasting landscape water scenery of low-maintenance and rainwater from
Cleaning system, including：Overpass rainwater-collecting module, the overpass rainwater-collecting module include laterally having drainage grade
Overhead bridge floor and the bridge pier for supporting overhead bridge floor, rainwater-collecting hole, rainwater are provided with the overhead bridge floor transverse end edge
Collect and water falling pipe is installed below hole；The rainwater buffer module being arranged on below overhead bridge floor, the rainwater buffer module by
At least two buffer pools are composed in series, and are mounted on reducing the PP modules of the flow velocity of rainwater in each buffer pool, on overhead bridge floor
Rainwater-collecting hole pass through the water inlet of water falling pipe and buffer pool connect；The undercurrent being laid on below rainwater buffer module is wet
Ground, the current wetland include sandy gravel stratum, metalling and the biomass focus layer laid successively from top to bottom, the biomass focus layer
Lower section laying anti-seepage geotextile, the outlet pipe of buffer pool is laid on sandy gravel stratum, and is provided with unidirectional screen, is planted on current wetland
The xylophyta and herbaceous plant of water purification are implanted with, and uses based on xylophyta, be aided with herbal wetland plant
Configuration mode；The ecological pond in current wetland center is arranged on, kind is implanted with water purification water plant and put in the ecological pond
Supporting has drainability animal, and the inlet channel connected with current wetland biomass focus layer is provided with the end edge in the ecological pond；
The underground conservation pool of ecological pond side is arranged on, the underground conservation pool is provided with water inlet, gap and delivery port, wherein
Delivery port is arranged on the bottom of cistern side wall, and is connected respectively with current wetland and the water inlet pipe in ecological pond by power water pump
Connect, gap is arranged on the top of cistern side wall and is connected with municipal storm sewer, and water inlet is arranged on cistern side wall
Top and be connected with the overflow pipe in ecological pond.
In the above-mentioned technical solutions, when raining, by the lower slightly overhead bridge floor in middle high both sides by rainwater catchment to bridge floor
The rainwater-collecting hole set in transverse end edge, and inputted by water falling pipe to the buffer pool in rainwater buffer module, and pass through
Energy dissipating reduction of speed is carried out to rainwater for PP modules in buffer pool and multi stage precipitation filters, and remove large granular impurity in rainwater,
And the small suspension in rainwater can be adsorbed by PP modules, plays a part of purifying water.After energy dissipating is filtered
Rainwater flows into current wetland, sandy gravel stratum, metalling and the biology being sequentially distributed from top to bottom in current wetland by Action of Gravity Field
Matter focus layer can be to the further filtering of rainwater, can be with by the cooperation of sandy gravel stratum, metalling and biomass focus layer and water purification plant
The material such as heavy metal, N, P in the large particulate matter and purified water in rainwater is filtered out, the rainwater after filtering is made by gravity again
With flowing into the relatively low ecological pond of physical features, pass through the water purification water plant of plantation and the drainability animal put in a suitable place to breed in ecological pond
Biological cleaning is carried out to rainwater, the organic pollution in rainwater is removed, water quality is further improved, ecological basin side wall
Top be provided with gap, when water level reaches the position of gap in pond, unnecessary water can flow into underground conservation pool, underground
Cistern plays a part of storing rainwater in heavy rain, unnecessary when the water level of rainwater in cistern reaches the position of gap
Purification after rainwater can be directly discharged into municipal storm sewer, be easy to use water elsewhere；It can pass through water pump again on non-rainy day
On demand to the current wetland under overpass and ecological water replenishment, so as to realize the collection of rainwater, purification, savings and utilization, solution
Overpass rainwater of having determined be exhausted directly to municipal pipeline and caused pressure is excessive cause surface gathered water and landscape Maintenance Difficulty caused by
The problem of landscape effect difference and rainwater resource waste.
Preferably, the PP modules include two side plates be arranged in parallel and surface perforate, are mounted side by side between biside plate
There are multiple dismountable baffle plates, upper cover plate and lower cover are covered with respectively above and below side plate, consequently, it is possible to can be according to existing
Field demand realizes any combination of PP modules, is not limited by place, and because the method mutually spliced using module, is applied
Work is simple, without big machinery, and is convenient for changing.
Preferably, the surface porosity factor of the PP modules latus inframedium, baffle plate, upper cover plate and lower cover differs, described
Side plate, baffle plate, upper cover plate and lower cover surface porosity factor are respectively 80%, 90%, 95% and 75%, by porosity not
Together, it is possible to achieve the guiding of water (flow) direction.
Preferably, the side plate, baffle plate, upper cover plate and lower cover are made by polypropylene plastics, by polypropylene plastics system
Grown into service life, it is durable in use, ageing-resistant, high temperature, low temperature, adapt to various adverse circumstances.
Preferably, current wetland is designed to circular banding, and the inlet channel set in the end edge in ecological pond is with delaying
Rush between the outlet pipe in pond and at least keep 2m distance.It is to increase rainwater latent that current wetland, which is designed to circular banding,
The length that stream wetland flows through, makes rainwater more effectively be purified, and experiment proves that what is set in the end edge in ecological pond enters
2m distance is at least kept just to can guarantee that rainwater obtains preferably after flowing through current wetland between waterpipe and the outlet pipe of buffer pool
Filter effect so that the content of material such as heavy metal, N, P significantly reduces in purified water.
Preferably, the plant that the present invention selects is as follows：Water purification xylophyta is square bar Portugal, great Ye Glochidion puberums, Shui Dong
Brother, Ficus lyrata, Monstera deliciosa, the bamboo palm or Ivy Tree Bark, water purification herbaceous plant be Hymenocallis americana, thorn taro, Chinagreen Herb, grass-leaved sweetflag,
Big banyan, epipremnum aureum or eel grass.
It is furthermore preferred that the xylophyta that shade tolerance is planted on current wetland is great Ye Glochidion puberums, water east brother, the bamboo palm or duck
Pin wood, the herbaceous plant of shade tolerance are Hymenocallis americana, pierce taro or Chinagreen Herb.This current wetland uses based on xylophyta,
It is aided with herbal wetland plant configuration mode, the maintenance cost in plant later stage can not only be reduced, and has taken into account plant
Ecological purification function and landscape persistence.
Preferably, the ecological pond also uses the Plant compound type based on xylophyta, supplemented by herbaceous plant, kind
The xylophyta of the shade tolerance of plant is square bar Portugal, Ficus lyrata or Monstera deliciosa, the herbaceous plant of shade tolerance is thorn taro, Hymenocallis americana,
Grass-leaved sweetflag, big banyan or eel grass, can not only beautify the environment, and can the further thing such as the organic pollution in purified water, N, P
Matter.
Preferably, the drainability animal put in a suitable place to breed in the ecological pond is spiral shell or Macropodus opercularis, filterability aquatic animal
As consumer, the young ovum of mosquito can be nibbled, consumption humus, filter food algae, promotes the ecological balance in ecological pond.
Preferably, PP modules are installed, PP is inserted in underground conservation pool inside as buffer pool in the underground conservation pool
Module, PP modules can adsorb the small suspension in rainwater, play a part of purifying water, and convenient installation, bearing capacity
Greatly, mosquito and algae are not grown.
The lasting landscape water scenery of low-maintenance and the beneficial effect of rainwater self-purifying system under a kind of overpass provided by the invention
It is：
1) the lasting landscape water scenery of low-maintenance and rainwater self-purifying system are ingenious in design under this overpass, pass through overpass rainwater
Cooperation between collection module, rainwater buffer module, current wetland, ecological pond and underground conservation pool, realize the receipts of rainwater
Collect, purify, save and recycle, and except the water storage in underground conservation pool is irrigated into current wetland or ecological water again
Power is needed during pond, other steps are voluntarily implemented by gravity, and the power consumption of whole system operation is very small；
2) the rainy lasting landscape water scenery of low-maintenance of this overpass and rainwater self-purifying system on overpass to being collected into
Water carries out energy dissipating first with buffer pool, reduces the flow velocity of rainwater；Carried out again by current wetland and ecological pond further net
Change, utilize water plant (plant absorption) and the mistake in the adsorption filtration of current wetland matrix and ecological pond with catharsis
The composite purification system that filter property animal (animal filter food) is formed purifies to rainwater, preferable to the effect of rainwater purification；Wherein,
Matrix and water purification water plant in current wetland can filter out large particulate matter, moreover it is possible to heavy metal, N, P etc. in purified water
Material；In ecological pond water purification water plant can the further material such as the organic pollution in purified water, N, P, sink water
Plant can be with floating dust in defaulted water；And filterability aquatic animal can nibble the young ovum of mosquito, consume humic as consumer
Matter, filter food algae；
3) due to xylophyta compared to herbaceous plant for, more suitable for used in lack manual maintenance wetland and water body
All it is set to be more suitable in wetland and water body in system, the features such as the persistence of its landscape, resistance to low level management and strong adaptability
Popularization and application, thus the current wetland and ecological pond in the system use with xylophyta (square bar Portugal, great Ye Glochidion puberums,
Water east brother, Ficus lyrata, Monstera deliciosa, the bamboo palm or Ivy Tree Bark) based on, be aided with herbaceous plant (Hymenocallis americana, thorn taro, Chinagreen Herb, stone
Calamus, big banyan, epipremnum aureum or eel grass) shade tolerance Plant compound type, the maintenance cost in plant later stage can not only be reduced, and
The ecological purification function and landscape persistence of plant are taken into account；
4) the lasting landscape water scenery of low-maintenance and rainwater self-purifying system can alleviate the pressure of municipal pipeline under this overpass,
The surface gathered water caused by municipal pipeline impeded drainage, and therefore caused road traffic problem are avoided, and by right
Landscape effect difference and rainwater resource waste caused by the efficient re-using of rainwater can solve the problems, such as landscape Maintenance Difficulty.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of invention.
Fig. 2 is the planar structure schematic diagram of invention.
Fig. 3 is the structural representation of current wetland in the present invention.
Fig. 4 is the structural representation in the ecological pond of the present invention.
Fig. 5 is the schematic diagram of underground conservation pool in invention.
Fig. 6 is the schematic flow sheet schematic diagram of invention.
Fig. 7 is the schematic diagram of PP modules in invention.
1st, overhead bridge floor；11st, bridge pier；12nd, water falling pipe；2nd, buffer pool；21st, buffer pool outlet pipe；22nd, unidirectional screen；
3rd, current wetland；31st, sandy gravel stratum；32nd, metalling；33rd, biomass focus layer；34th, rammed earth layer；35th, anti-seepage geotextile；4th, it is raw
State pond；41st, pond water inlet pipe；42nd, pond overflow pipe；43rd, soil horizon；44th, pool wall；5th, cistern；51st, water inlet；52、
Delivery port；53rd, gap；6th, PP modules；61st, side plate；62nd, upper cover plate；63rd, lower cover；64th, baffle plate.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Whole description, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Ability
The every other embodiment that domain ordinary person is obtained under the premise of creative work is not made, belong to the protection of the present invention
Scope.
Embodiment：The lasting landscape water scenery of low-maintenance and rainwater self-purifying system under a kind of overpass.
Referring to figs. 1 to shown in Fig. 7, the lasting landscape water scenery of low-maintenance and rainwater self-purifying system under a kind of overpass, including：
Overpass rainwater-collecting module, the overpass rainwater-collecting module include laterally having drainage grade (middle high
Both sides are lower slightly) overhead bridge floor 1 and bridge pier 11 for supporting overhead bridge floor 1, be provided with the overhead transverse end edge of bridge floor 1
Rainwater-collecting hole, rainwater-collecting hole lower section are provided with water falling pipe 12, and overhead bridge floor 1 is arranged into the lower slightly horizontal stroke in middle high both sides
To gradient inclined-plane, beneficial to it is rainy when rainwater collection, the overhead cross fall of bridge floor 1 design passes through middle high between 3 ‰ -5 ‰
The rainwater-collecting hole that the lower slightly overhead bridge floor 1 in both sides will be set on rainwater catchment to bridge floor transverse end edge；
The rainwater buffer module of the overhead lower section of bridge floor 1 is arranged on, the rainwater buffer module is by three series connection groups of buffer pool 2
Into being mounted on reducing the PP modules 6 of the flow velocity of rainwater in each buffer pool 2, the rainwater-collecting hole on overhead bridge floor 1 is by falling
Waterpipe 12 is connected with the water inlet of buffer pool 2, and energy dissipating reduction of speed is carried out to rainwater by the PP modules 6 in buffer pool 2
Precipitate and filter with three-level, remove large granular impurity in rainwater, wherein, it is be arrangeding in parallel and surface perforate that PP modules 6 include two
Side plate 61, multiple dismountable baffle plates 64 are mounted side by side between biside plate 61, have passed through buckle respectively above and below side plate 61
Be covered with upper cover plate 62 and lower cover 63, as shown in fig. 6, and side plate 61, baffle plate 64, upper cover plate 62 and lower cover 63 by poly-
Acrylic plastic is made and surface porosity factor differs, the side plate 61, baffle plate 64, upper cover plate 62 and the surface pore of lower cover 63
Rate is respectively 80%, 90%, 95% and 75%；It is to reduce the flow velocity of rainwater simultaneously that the effect of PP modules 6 is placed in each buffer pool 2
And filtering large granular impurity, the outlet of buffer pool 2 can be blocked when preventing rainwater excessive, while PP modules 6 can be according to live need
Ask and be combined, do not limited by place, and because the method mutually spliced using module, construction is simple, without
Big machinery；
The current wetland 3 being laid on below rainwater buffer module, the current wetland 3 are to replace upper strata by three layers of matrix
Soil, including sandy gravel stratum 31, metalling 32 and the biomass focus layer 33 laid successively from top to bottom, the biomass focus layer 33
Anti-seepage geotextile 35 is laid in lower section, and shown in reference picture 3, anti-seepage geotextile 35 is used to prevent rainwater infiltration from entering underground rammed earth
Layer 34, ensure that rainwater can be flowed in three layers of matrix in current wetland 3；Buffer pool outlet pipe 21 is laid on sandy gravel stratum
On 31, when the rainwater in buffer pool flows into current wetland 3 by Action of Gravity Field, sandy gravel stratum 31 is first passed around, sandy gravel stratum 31 can be with
Filter out the granule foreign in rainwater, and metalling 32 make it that current wetland 3 is centrally formed a water stream channel, ensure that rainwater can be with
Flowed in three layers of matrix in wetland, biomass focus layer 33 is for filtering out the pollutants such as the heavy metal in rainwater, N, P；
And this current wetland 3 does matrix with biomass char, the impurity in water can have both been adsorbed, again can be as the planting matrix of plant
Use, current wetland 3 is designed to a circular banding, in order to increase the length that rainwater flows through in current wetland 3,
Rainwater is set more effectively to be purified so that the content of material such as large particulate matter, heavy metal, N, P significantly reduces in purified water；It is latent
The xylophyta that shade tolerance is planted on stream wetland 3 is great Ye Glochidion puberums, water east brother, the bamboo palm or Ivy Tree Bark, and the draft of shade tolerance is planted
Thing is Hymenocallis americana, thorn taro or Chinagreen Herb, can not only be purified water, and can reduce the maintenance cost in plant later stage, is had
There is landscape persistence.
Be arranged on the ecological pond 4 in the center of current wetland 3, in the ecological pond 4 kind be implanted with water purification water plant and
Drainability animal is put in a suitable place to breed, the water inlet connected with the biomass focus layer 33 of current wetland 3 is provided with the end edge in the ecological pond 4
Pipeline, current wetland 3 are provided with water outlet around ecological pond 4, and in the end of current wetland 3 by the side of water body
Mouthful, the water after the purification of current wetland 3 can flow into the relatively low ecological pond 4 of physical features by Action of Gravity Field by delivery port, raw
Water purification water plant (square bar Portugal, Ficus lyrata, Monstera deliciosa, thorn taro, Hymenocallis americana, grass-leaved sweetflag, the big banyan of plantation in state pond 4
Or eel grass), filterability animal (spiral shell, Macropodus opercularis), the composite purification system formed using water plant and filterability animal come
The organic matter of further purifying rainwater, makes the water quality of rainwater be much improved；The aquatic plant of water purification in wherein ecological pond 4
Thing can be with the material such as the organic pollution in purified water, N, P, and submerged plant can be with floating dust in defaulted water；Filterability is aquatic
Animal can nibble the young ovum of mosquito, algae is eaten in consumption humus, filter, due to meetings such as evaporation and plant growths as consumer
Landscape water is consumed, moisturizing is carried out using the rainwater after being purified in follow-up underground conservation pool 5；
The underground conservation pool 5 of the ecological side of pond 4 is arranged on, the underground conservation pool 5 is provided with water inlet 51, gap
53 and delivery port 52, wherein delivery port 52 is arranged on the bottom of the side wall of cistern 5, and by power water pump respectively with current wetland
3 connect with the water inlet pipe in ecological pond 4, and gap 53 is arranged on the top of the side wall of cistern 5 and is connected with municipal storm sewer
Connect, water inlet 51 is arranged on the top of the side wall of cistern 5 and is connected with ecological pond overflow pipe 42, and underground conservation pool 5 is in heavy rain
When play a part of store rainwater, when the water level of rainwater in underground conservation pool 5 reaches the position of gap 53, unnecessary purification
Rainwater afterwards can be directly discharged into municipal storm sewer, be easy to use water elsewhere, such as the water supply for sprinkling truck；Rained non-
It again can be by water pump on demand to the current wetland 3 under overpass and the moisturizing of ecological pond 4, so as to realize the collection of rainwater, net
Change, savings and utilize, solve overpass rainwater be exhausted directly to municipal pipeline and caused pressure it is excessive cause surface gathered water and
The problem of landscape effect difference and rainwater resource waste caused by landscape Maintenance Difficulty.
Shown in reference picture 2, unidirectional screen 22 is installed on buffer pool outlet pipe 21, can both filter and flowed into out of buffer pool
The rainwater of current wetland, it can prevent the rainwater in current wetland 3 from pouring in down a chimney into buffer pool 2 again.Similarly, current wetland outlet pipe
41 are also provided with unidirectional screen 22, can both filter the rainwater that ecological pond 4 is flowed into from current wetland 3, can prevent ecology again
The rainwater in pond 4 pours in down a chimney into current wetland 3.
Shown in reference picture 2 and Fig. 4, ecological pond 4 is located at the middle position of current wetland 3, the pool wall 44 in ecological pond 4
On be provided with the pond water inlet pipe 41 connected with the biomass focus layer 33 of current wetland 3, the bottom of pond in ecological pond 4 is from top to bottom successively
Including soil horizon 43, sandy gravel stratum 31 and metalling 32, preferably to maintain the ecological balance in ecological pond 4, this ecological water
Pond 4 is a composite purification system combined by water purification water plant and filter feeder, can reach plantation-Water warfare
Integration effect, the ecological pond is the storm water man- agement and rainwater utilization facility of a kind of ecological sustainability, have low cost,
The advantages that high-effect.
In the present embodiment, PP modules 6 are inserted, PP modules 6 can adsorb rain in the inside of underground conservation pool 5 as buffer pool 2
Small suspension in water, plays a part of purifying water, and convenient installation, and bearing capacity is big, does not grow mosquito and algae.
Described above is presently preferred embodiments of the present invention, but the present invention should not be limited to the embodiment and accompanying drawing institute is public
The content opened, so every do not depart from the lower equivalent or modification completed of spirit disclosed in this invention, both fall within protection of the present invention
Scope.
Claims (9)
1. the lasting landscape water scenery of low-maintenance and rainwater self-purifying system under a kind of overpass, it is characterised in that including：
Overpass rainwater-collecting module, the overpass rainwater-collecting module include laterally have drainage grade overhead bridge floor and
For supporting the bridge pier of overhead bridge floor, rainwater-collecting hole, rainwater-collecting hole lower section are provided with the overhead bridge floor transverse end edge
Water falling pipe is installed；
The rainwater buffer module being arranged on below overhead bridge floor, the rainwater buffer module is by least two buffer pool series connection groups
Into being mounted on reducing the PP modules of the flow velocity of rainwater in each buffer pool, the rainwater-collecting hole on overhead bridge floor passes through overboard
The water inlet of pipeline and buffer pool connects；
The current wetland being laid on below rainwater buffer module, the current wetland include the gravel laid successively from top to bottom
Layer, metalling and biomass focus layer, the lower section laying anti-seepage geotextile of the biomass focus layer, the outlet pipe of buffer pool are laid on
On sandy gravel stratum, kind is implanted with the xylophyta and herbaceous plant of water purification on current wetland, and uses using xylophyta to be main and auxiliary
With herbal wetland plant configuration mode；
The ecological pond in current wetland center is arranged on, kind is implanted with water purification water plant and has put filter in a suitable place to breed in the ecological pond
Water-based animal, the inlet channel connected with current wetland biomass focus layer is provided with the end edge in the ecological pond；
The underground conservation pool of ecological pond side is arranged on, the underground conservation pool is provided with water inlet, gap and delivery port,
Wherein delivery port is arranged on the bottom of cistern side wall, and passes through the power water pump water inlet with current wetland and ecological pond respectively
Pipe connects, and gap is arranged on the top of cistern side wall and is connected with municipal storm sewer, and water inlet is arranged on cistern
The top of side wall is simultaneously connected with the overflow pipe in ecological pond.
2. the lasting landscape water scenery of low-maintenance and rainwater self-purifying system, its feature exist under overpass according to claim 1
In：The PP modules include two side plates be arranged in parallel and surface perforate, have been mounted side by side between biside plate multiple detachable
Baffle plate, be covered with upper cover plate and lower cover respectively above and below side plate.
3. the lasting landscape water scenery of low-maintenance and rainwater self-purifying system under overpass according to claim 2, it is characterised in that：
The PP modules latus inframedium, baffle plate, the surface porosity factor of upper cover plate and lower cover differ, the side plate, baffle plate, upper cover plate
It is respectively 80%, 90%, 95% and 75% with lower cover surface porosity factor.
4. the lasting landscape water scenery of low-maintenance and rainwater self-purifying system, its feature under the overpass according to Claims 2 or 3
It is：
The side plate, baffle plate, upper cover plate and lower cover are made by polypropylene plastics.
5. the lasting landscape water scenery of low-maintenance and rainwater self-purifying system, its feature exist under overpass according to claim 1
In：Current wetland is designed to circular banding, the inlet channel and the outlet pipe of buffer pool set in the end edge in ecological pond
Between at least keep 2m distance.
6. the lasting landscape water scenery of low-maintenance and rainwater self-purifying system, its feature exist under overpass according to claim 1
In：The water purification xylophyta planted on the current wetland is square bar Portugal, great Ye Glochidion puberums, water east brother, Ficus lyrata, the curvature of the spinal column
Bamboo, the bamboo palm or Ivy Tree Bark, water purification herbaceous plant are Hymenocallis americana, thorn taro, Chinagreen Herb, grass-leaved sweetflag, big banyan, epipremnum aureum or hardship
Grass.
7. the lasting landscape water scenery of low-maintenance and rainwater self-purifying system, its feature exist under overpass according to claim 1
In：The water purification water plant of plantation is in the ecological pond：Square bar Portugal, Ficus lyrata, Monstera deliciosa, Hymenocallis americana, grass-leaved sweetflag,
Big banyan or eel grass.
8. the lasting landscape water scenery of low-maintenance and rainwater self-purifying system, its feature exist under overpass according to claim 1
In：The drainability animal put in a suitable place to breed in the ecological pond is spiral shell or Macropodus opercularis.
9. the lasting landscape water scenery of low-maintenance and rainwater self-purifying system, its feature exist under overpass according to claim 1
In：PP modules are installed in the underground conservation pool.
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