CN110219357A - Multifunctional sponge urban municipal road biological cleaning stranded belt and its construction technology - Google Patents
Multifunctional sponge urban municipal road biological cleaning stranded belt and its construction technology Download PDFInfo
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- CN110219357A CN110219357A CN201910425323.8A CN201910425323A CN110219357A CN 110219357 A CN110219357 A CN 110219357A CN 201910425323 A CN201910425323 A CN 201910425323A CN 110219357 A CN110219357 A CN 110219357A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
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- 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
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- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
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- 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
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Abstract
The present invention relates to a kind of Multifunctional sponge urban municipal road biological cleaning stranded belt and its construction technologies, wherein biological cleaning stranded belt includes: waterproof geotextile layer；Water storage drainage blanket, aquifer, pervious bed, filter layer and the plantation layer being successively laid with from the bottom to top, plant the upper surface of layer in recessed arc；Water-permeable pipe；Drainage system in the middle part of the plantation layer is set；Wherein, drainage system includes: overflow pipe, and overflow pipe extends the surface of plantation layer；Siphon pipe；And main sewer.Biological cleaning stranded belt of the invention alleviates the generation of urban waterlogging, and when amount of rainfall is larger, when at the middle part of planting soil layer, accumulation is a certain amount of, it will be in extra rainwater suction overfall pipe by siphon pipe, and it is discharged by main sewer, effectively rainwater is timely discharged, to realize the multiple functions such as infiltration, water storage, water purification, backwater, draining, town road is included in a part in sponge city.
Description
Technical field
The present invention relates to municipal road construction technical field, in particular to a kind of Multifunctional sponge urban municipal road life
Object purifies stranded belt and its construction technology.
Background technique
Sponge city is a kind of urban construction new concept that country proposes.National house and town and country construction portion are required to 2020
Year, the area of 20% or more completed region of the city reaches target call, and the area to 80% or more the year two thousand thirty reaches target call.By
This can be seen that country improve resident living environment and Urban Water Environment there is an urgent need to sponge city requirement city is being rained
When have the function of seeping, be stagnant, store, is net, use, row.Road pavement is about 30% in the specific gravity that entire city is mated formation, and there is rainwater
The problem of road surface leads to runoff pollution, water resource waste is washed away, therefore, gives full play to effect of the town road in sponge city
It is extremely important.General town road mainly by car lane, non-motorized lane, pavement, in point band, side divide band to form.By
In the continuous improvement to town road landscape effect and green percentage, in point band and side divide the width of band to be increasing,
In the case where guaranteeing road safety use, band is divided to seem in performance with effect of the side point with infiltration, water storage, water purification, backwater, draining
It is very necessary.In current design of municipal road, all dividing strip height are above road table, can not play above-mentioned work at all
With, and road surface can be polluted from the rainwater that dividing strip flows out, it will also aggravate the pressure of drainage system.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of Multifunctional sponge urban municipal road biological cleaning is stagnant
Band and its construction technology are stayed, has the advantages that integrate infiltration, water storage, water purification, backwater, draining.
In order to achieve the above objectives, technical scheme is as follows:
A kind of Multifunctional sponge urban municipal road biological cleaning stranded belt, comprising:
It is laid on the waterproof geotextile layer of town road dividing strip inner wall；
Water storage drainage blanket, aquifer, pervious bed, filter layer and the plantation layer being successively laid with from the bottom to top, the plantation
The upper surface of layer is in recessed arc；
The water-permeable pipe being threaded through in the water storage drainage blanket；And
Drainage system in the middle part of the plantation layer is set；
Wherein, the drainage system includes:
Several overflow pipes uniformly distributed along town road extending direction, the overflow pipe extend the table of the plantation layer
Face and at least with plantation layer highest point flush；
One end is suspended in the middle part of plantation layer above minimum point and the other end bypasses the nozzle of the overflow pipe and is arranged in institute
State the siphon pipe extended to below the plantation layer in overflow pipe；And
It is connected to the main sewer of each overflow pipe lower end.
Above-mentioned technical proposal is realized, when rainwater is overflowed into dividing strip from town road, due to the blocking by waterproof geotextiles
Effect, during rainwater infiltration, does not penetrate into the bottom of town road, that is, is trapped in biological cleaning stranded belt, and rain
Water carries out a degree of purification, removal rain water part oil by the soil property of plantation layer and plant first during lower infiltration
Dirty and heavy metal, is then sufficiently filtered by filter layer, and the rainwater that aquifer is seeped under making reaches certain cleanliness,
When by pervious bed, the silt of filter layer is stopped, prevents its lower seeps from blocking water-permeable pipe, by by aquifer and water storage row
Water layer is stored, and excessive rainfall is discharged from water-permeable pipe, this part rainwater may collect in water-storing device, be used for
It irrigates and cleans, saved water resource；Since the upper surface of plantation layer is recessed arc, rainwater is flowing into biological cleaning
It is difficult to be back on road after stranded belt, so that the generation of urban waterlogging is alleviated, and when amount of rainfall is larger, in planting soil layer
When middle part accumulation is a certain amount of, by siphon pipe by extra rainwater suction overfall pipe, and by main sewer discharge, effectively
Rainwater is timely discharged, so that the multiple functions such as infiltration, water storage, water purification, backwater, draining are realized, by town road
It is included in a part in sponge city.
As a preferred solution of the present invention, the two sides of the plantation layer offer dashpot, paving in the dashpot
Equipped with erosion control brush layer, the side that the upper surface of the erosion control brush layer faces away from town road tilts upward setting.
It realizes above-mentioned technical proposal, by the way that erosion control brush layer is arranged, reduces rainwater and planting soil layer is washed away, improve planting soil
The stability of layer and the stability of plant growth play preferable buffer function simultaneously because erosion control brush layer is obliquely installed, and
Erosion control brush layer itself also has water penetration, facilitates rainwater through in inflow plantation layer.
As a preferred solution of the present invention, the erosion control brush layer is (5-7): the sepiolite of (15-20) by weight ratio
It mixes and forms with rubble.
Above-mentioned technical proposal is realized, by the way that sepiolite and rubble are mixed to form a layer erosion control brush layer, due to sepiolite counterweight
Metal ion has preferable absorption, and when rainwater passes through erosion control brush layer, the heavy metal ion in rainwater is first by Hai Pao
Stone absorption a part, reduces influence of the heavy metal ion to plantation layer, is more conducive to the growth of plant.
As a preferred solution of the present invention, the water storage drainage blanket is (1-3) by weight ratio: the haydite of (6-10) and
Rubble mixing composition.
Realize above-mentioned technical proposal, haydite and rubble, which all have preferable water storage performance and formed, is capable of forming certain seam
Gap facilitates draining.
As a preferred solution of the present invention, the aquifer is (3-5): (5-8): the silicon of (12-18) by weight ratio
Diatomaceous earth, river sand and coarse sand mixing composition.
Realize above-mentioned technical proposal, diatomite and river sand are provided with stronger water storage performance, improve biological cleaning stranded belt
Water storage water holding capacity after storing certain rainwater, improve the lower infiltration ability of rainwater after being mixed into coarse sand, enable rainwater
Enough quickly discharges.
As a preferred solution of the present invention, the pervious bed includes: the permeable soil being laid on above the aquifer
Work cloth and the permeable brick layer being laid on above the permeable geotextiles.
It realizes above-mentioned technical proposal, by water-permeable brick and permeable geotextiles collective effect, the silt in filter layer is carried out
Stop, while enabling rainwater fast strikethrough.
As a preferred solution of the present invention, the filter layer includes: the first mistake being arranged in above the pervious bed
Filtering layer and the second filter layer being arranged in above first filter layer, first filter layer are 2:(6-8 by weight ratio)；
(2-4): active carbon, fine sand, clay and the quartz sand mixing of (3-5) form, and second filter layer is laid with by glass fabric
It is formed.
Realize above-mentioned technical proposal, active carbon has preferable adsorption filtration ability, has for rainwater purification significant
Effect, and fine sand and quartz sand can be stopped and be filtered to the pollutant in rainwater, it will be active by the adhesion strength of clay
Charcoal, fine sand and quartz sand are sticked together, so that the first filter layer forms a complete filtration system, while clay also has
Preferable adherency filter capacity, realizes the filtering to rainwater, and to planting, layer carries out support and filtering is made by the second filter layer
With, prevent plantation layer from mixing with filter layer, while glass fabric intensity with higher, good mechanical performance and compared with
Strong corrosion resistance, not cracky.
As a preferred solution of the present invention, it is (3-6): (4-7): (75-85's) that the plantation layer, which includes weight ratio,
Flyash, charcoal and planting soil combine the mixed layer to be formed, and are embedded with stalk layer in the mixed layer.
Realize above-mentioned technical proposal, flyash meta-alkalescence, and rainwater is in acidity, in flyash and rainwater progress
With, the acid-base property of adjustable plantation layer, meanwhile, the elements such as calcic, potassium, phosphorus, sodium, magnesium, iron, copper, zinc, manganese in flyash can
To increase the fertility of soil, apply after flyash can chesson, increase porosity, mitigate the soil weight；Charcoal has more
Pore structure, biggish specific surface area and stronger adsorption capacity, can effectively drink up the rain in heavy metal and organic contamination
Object, and be conducive to the growth of plant, improve the survival rate of plant and the penetrating power of biological cleaning stranded belt；And stalk layer has
Preferable water conservation water-holding capacity, keeps the water replenishment of plant root, is conducive to the growth of plant, and after stalk fermentation rots
On the one hand the fertility that soil can be improved, on the other hand can mix, the interlaced shape of fibrous layer with charcoal and planting soil
Structure is reticulated, there is preferable filtration, purification effect to rainwater.
As a preferred solution of the present invention, the middle part of the plantation layer is equipped with non-irrigated small stream, is inserted with pipe in the drought small stream
Road fixed frame, the pipe fixing bracket include: stop collar and several fixed feets for being fixed on the stop collar, and the siphon pipe is inserted
It is connected in the stop collar.
It realizes above-mentioned technical proposal, certain rainwater can be stored in plantation layer surface by the way that non-irrigated small stream is arranged, meanwhile, work as drop
When excessive rainfall, rainwater can be drained by non-irrigated small stream, non-irrigated small stream also has certain water purification ability, and preliminary mistake can be carried out to rainwater
Filter, and can be by the dirt retention in rainwater inside non-irrigated small stream；And overflow pipe can be limited and be consolidated by pipe fixing bracket
It is fixed, and non-irrigated small stream is separated with overflow pipe, facilitate overflow pipe that the rainwater in non-irrigated small stream is discharged.
On the other hand, the present invention also provides a kind of construction technology of biological cleaning stranded belt, the technique includes following step
It is rapid:
Step 1: divide the width of band according in design of municipal road points of band and side, determine the width of biological cleaning stranded belt
Degree, and carry out the excavation of foundation pit；
Step 2: waterproof geotextiles are laid with along the inner wall of foundation pit and foundation pit is completely covered to form waterproof geotextile layer；
Step 3: the extending direction along town road is laid with water-permeable pipe in the middle position of bottom of foundation ditch；
Step 4: water storage drainage blanket, aquifer, pervious bed and filter layer, detailed process are successively laid from bottom to up are as follows:
Weight ratio is (1-3) by S01: the haydite and rubble of (6-10) pave after mixing in the bottom of foundation pit, and will be permeable
Pipe covering, to obtain water storage drainage blanket；
Weight ratio is (3-5): (5-8) by S02: diatomite, river sand and the coarse sand of (12-18) are laid on after being stirred
Above water storage drainage blanket, and paves compacting and form aquifer；
S03, permeable geotextiles is laid on aquifer after forming permeable geotextile layer, and water-permeable brick is closely laid on
Permeable brick layer is formed above water geotextiles, permeable geotextile layer and permeable brick layer collectively form pervious bed；
Weight ratio is 2:(6-8 by S04)；(2-4): after active carbon, fine sand, clay and the quartz sand of (3-5) are stirred
It is laid in permeable brick layer, and forms the first filter layer after compacting of tiling, then glass fabric is laid on the first filter layer
The second filter layer is formed, the first filter layer and the second filter layer collectively form filter layer；
Step 5: overflow pipe and main sewer are subjected to assembling and are laid in along the extending direction of town road close to foundation pit
Medium position；
Step 6: being (3-6): (4-7): after flyash, charcoal and the planting soil of (75-85) are stirred by weight ratio
Mixed planting soil is obtained, mixed planting soil is laid on above filter layer and is fixed main sewer, and is being routed to first
It is laid with stalk after design height and forms stalk layer, and continues to be laid with mixing planting soil up to the second design height, forms plantation layer,
And will plant simultaneously the surface layer finishing of layer in it is recessed when, the distance from bottom grade elevation 22-26cm of concave surface, and in plantation layer
Reserve dashpot in two sides；
Step 7: being (5-7) by weight ratio: the rubble and sepiolite of (15-20) are filled in dashpot after mixing and are formed
Erosion control brush layer, and surface layer is trimmed to and is tilted upward；
Step 8: siphon pipe is successively threaded through in each overflow pipe, and is suspended at the end of siphon pipe in the middle part of plantation layer
Top 2-5cm.
In conclusion the invention has the following beneficial effects:
The embodiment of the present invention is by providing a kind of Multifunctional sponge urban municipal road biological cleaning stranded belt and its applying
Work technique, wherein biological cleaning stranded belt includes: to be laid on the waterproof geotextile layer of town road dividing strip inner wall；By down toward
On be successively laid with water storage drainage blanket, aquifer, pervious bed, filter layer and plantation layer, it is described plantation layer upper surface be under
Recessed arc；The water-permeable pipe being threaded through in the water storage drainage blanket；Drainage system in the middle part of the plantation layer is set；Wherein,
The drainage system includes: several overflow pipe uniformly distributed along town road extending direction, and the overflow pipe extends described
Plant the surface of layer and the highest point flush at least with plantation layer；One end is suspended above minimum point and another in the middle part of plantation layer
One end bypasses the nozzle of the overflow pipe and is arranged in the siphon pipe extended to below the plantation layer in the overflow pipe；With
And it is connected to the main sewer of each overflow pipe lower end.When rainwater is overflowed into dividing strip from town road, due to by anti-water and soil
The barrier effect of work cloth does not penetrate into the bottom of town road during rainwater infiltration, that is, is trapped in biological cleaning delay
In band, and rainwater carries out a degree of purification by the soil property of plantation layer and plant first during lower infiltration, removes rainwater
Middle part greasy dirt and heavy metal are then sufficiently filtered by filter layer, and the rainwater that aquifer is seeped under making reaches certain
Cleanliness stops the silt of filter layer when by pervious bed, prevents its lower seeps from blocking water-permeable pipe, by by water storage
Layer and water storage drainage blanket are stored, and excessive rainfall is discharged from water-permeable pipe, this part rainwater may collect in water storage
In device, for irrigating and cleaning, water resource has been saved；Since the upper surface of plantation layer is recessed arc, rainwater exists
It is difficult to be back on road after flowing into biological cleaning stranded belt, to alleviate the generation of urban waterlogging, and when amount of rainfall is larger,
When at the middle part of planting soil layer, accumulation is a certain amount of, by siphon pipe by extra rainwater suction overfall pipe, and it is total by draining
Pipe discharge, is effectively timely discharged rainwater, to realize a variety of function such as infiltration, water storage, water purification, backwater, draining
Can, town road is included in a part in sponge city.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the embodiment of the present invention one.
Fig. 2 is the structural schematic diagram of pipe fixing bracket in the embodiment of the present invention one.
Number and corresponding component title represented by letter in figure:
100, waterproof geotextile layer；200, water storage drainage blanket；300, aquifer；400, pervious bed；410, permeable geotextiles；
420, permeable brick layer；500, filter layer；510, the first filter layer；520, the second filter layer；600, layer is planted；601, dashpot；
610, mixed layer；620, stalk layer；630, erosion control brush layer；640, non-irrigated small stream；700, water-permeable pipe；800, drainage system；810, spilling water
Pipe；820, siphon pipe；830, main sewer；840, pipe fixing bracket；841, stop collar；842, fixed feet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
A kind of Multifunctional sponge urban municipal road biological cleaning stranded belt, as shown in Figure 1, comprising: be laid on municipal administration
The waterproof geotextile layer 100 of road dividing strip inner wall；The water storage drainage blanket 200 that is successively laid with from the bottom to top, aquifer 300, thoroughly
Water layer 400, filter layer 500 and plantation layer 600, the upper surface of plantation layer 600 are in recessed arc；It is threaded through water storage drainage blanket
Water-permeable pipe 700 in 200；And the drainage system 800 at 600 middle part of plantation layer is set.
It is formed specifically, waterproof geotextile layer 100 covers entire road dividing strip by waterproof geotextiles, waterproof geotextiles exist
It is mutually stacked when laying, and seam crossing is at least overlapped 15cm or more, using suture or bonding between adjacent waterproof geotextiles
Form is fixed, to guarantee the waterproofness of seam crossing.
Water-permeable pipe 700 uses diameter for the flexible porous tube 700 of 10cm, water-permeable pipe 700 connect water-storing device or
It is directly connected to city sewer, the rainwater after filtration, purification is collected by water-storing device, irrigation cleaning can be carried out, is saved
About water resource.
Water storage drainage blanket 200 is (1-3) by weight ratio: haydite and the rubble mixing of (6-10) form, and in the present embodiment, adopt
The haydite and rubble for being 3:8 with weight ratio, the diameter of haydite are 15-20mm, and the diameter of rubble is 20-30mm, haydite and rubble
It all has preferable water storage performance and is formed and be capable of forming certain gap, facilitate draining.
Aquifer 300 is (3-5): (5-8) by weight ratio: diatomite, river sand and the coarse sand mixing of (12-18) form, this
In embodiment, aquifer 300 is mixed to form by diatomite, river sand and the coarse sand that weight ratio is 4:8:15, and diatomite and river sand are equal
Have stronger water storage performance, improves the water storage water holding capacity of biological cleaning stranded belt, it is certain in storage after being mixed into coarse sand
Rainwater after, improve the lower infiltration ability of rainwater, rainwater enable quickly to be discharged.
Pervious bed 400 includes: to be laid on the permeable geotextiles 410 of 300 top of aquifer and be laid on permeable geotextiles
The permeable brick layer 420 of 410 tops, permeable geotextiles 410 just have the form for manually rolling paving to pave, and seam crossing is at least overlapped
5cm or more, permeable brick layer 420 are closely tiled by at least two layers laying water-permeable brick that interlocks and are formed, and by two layers of water-permeable brick, lower layer is saturating
Gap between water brick is covered by upper layer water-permeable brick, by 410 collective effect of water-permeable brick and permeable geotextiles, to filter layer 500
In silt stopped, while enabling rainwater fast strikethrough.
Filter layer 500 includes: that the first filter layer 510 of 400 top of pervious bed is arranged in and is arranged in the first filter layer 510
Second filter layer 520 of top, the first filter layer 510 are 2:(6-8 by weight ratio)；(2-4): the active carbon of (3-5), fine sand,
Clay and quartz sand mixing composition, the second filter layer 520 is laid with by glass fabric to be formed, the first filter layer in the present embodiment
510 are made of the active carbon that weight ratio is 2:6:4:4, fine sand, clay and quartz sand mixing；Active carbon, which has, preferably to be adsorbed
Filter ability has significant effect for rainwater purification, and fine sand and quartz sand can stop the pollutant in rainwater
And filtering, active carbon, fine sand and quartz sand are sticked together by the adhesion strength of clay, so that the first filter layer 510 is formed
One complete filtration system, while clay also has preferable adherency filter capacity, realizes the filtering to rainwater, and passes through the
Two 520 pairs of filter layer plantation layers 600 carry out support and filtration, prevent mixing with filter layer 500 for plantation layer 600, together
When glass fabric intensity with higher, good mechanical performance and stronger corrosion resistance, not cracky.
Planting layer 600 includes weight ratio for (3-6): (4-7): flyash, charcoal and the planting soil of (75-85) combine shape
At mixed layer 610, be embedded with stalk layer 620 in mixed layer 610, mixed layer 610 is 5:6:80 by weight ratio in the present embodiment
Flyash, charcoal and planting soil mixing composition, plant the upper layer of layer 600 by manual amendment into recessed arc, and arc
Concave surface apart from designed elevation 22-26cm, stalk layer 620 with a thickness of 10-20cm, and surface distance designed elevation 1- thereon
1.25m；Flyash meta-alkalescence, and rainwater is in acidity, by neutralizing in flyash and rainwater progress, adjustable plantation layer 600
Acid-base property, meanwhile, the elements such as calcic, potassium, phosphorus, sodium, magnesium, iron, copper, zinc, manganese in flyash can increase the fertility of soil,
Apply flyash after can chesson, increase porosity, mitigate the soil weight；Charcoal has porous structure, biggish compares table
Area and stronger adsorption capacity, can effectively drink up the rain in heavy metal and organic pollutant, and be conducive to plant
Growth, improves the survival rate of plant and the penetrating power of biological cleaning stranded belt；And stalk layer 620 has preferable water conservation water storage
Ability keeps the water replenishment of plant root, is conducive to the growth of plant, and the rotten latter aspect of stalk fermentation can be improved
On the other hand the fertility of soil can be mixed with charcoal and planting soil, the interlaced formation reticular structure of fibrous layer, to rain
Water has preferable filtration, purification effect.
Meanwhile dashpot 601 is offered in the two sides of plantation layer 600, it is equipped with erosion control brush layer 630 in dashpot 601, prevents
The side that the upper surface of erosional layer 630 faces away from town road tilts upward setting, and tilt angle is 1-3 °, square erosional layer
Close to one end of road lower than road surface, one end far from road and road surface flush；By the way that erosion control brush layer is arranged
630, it reduces rainwater and planting soil layer is washed away, improve the stability of planting soil layer and the stability of plant growth, simultaneously because
Erosion control brush layer 630 is obliquely installed, and plays preferable buffer function, and erosion control brush layer 630 itself also has water penetration, facilitates rain
Water is through in inflow plantation layer 600.
Erosion control brush layer 630 is (5-7) by weight ratio: sepiolite and the rubble mixing of (15-20) form, in the present embodiment,
Erosion control brush layer 630 is made of the sepiolite that weight ratio is 6:16 and rubble mixing, by the way that sepiolite and rubble are mixed to form layer
Erosion control brush layer 630, since sepiolite has preferable absorption to heavy metal ion, when rainwater passes through erosion control brush layer 630,
Heavy metal ion in rainwater adsorbs a part by sepiolite first, reduces influence of the heavy metal ion to plantation layer 600, more
Be conducive to the growth of plant.
Drainage system 800 includes: several overflow pipe 810 uniformly distributed along town road extending direction, and overflow pipe 810 prolongs
Stretch out the surface of plantation layer 600 and the highest point flush at least with plantation layer 600；One end is suspended at 600 middle part of plantation layer most
Above low spot and the other end bypasses the nozzle of overflow pipe and is arranged in the siphon pipe for extending to 600 lower section of plantation layer in overflow pipe
820；And it is connected to the main sewer 830 of each overflow pipe lower end；The spacing of adjacent overflow pipe 810 is arranged in 2.5-3.2m
Between, and the highest point flush of the nozzle of overflow pipe 810 and plantation layer 600, siphon pipe 820 are U-tube or cotton thread, and outstanding
The surface 2-5cm of one end distance plantation layer 600 above plantation layer 600 is set, thus when rainwater is more, it can be existing by siphon
As the discharge of the ponding in layer 600 will be planted.
Further, it is equipped with non-irrigated small stream 640 at the middle part of plantation layer 600, non-irrigated small stream 640 is laid with by cobblestone to be formed, in non-irrigated small stream
Pipe fixing bracket 840 is inserted in 640, as shown in Fig. 2, pipe fixing bracket 840 includes: stop collar 841 and several is fixed on limit
The fixed feet 842 of position ring 841, siphon pipe 820 are plugged in stop collar 841, and fixed feet 842 is plugged and fixed in plantation layer 600
On；Certain rainwater can be stored on plantation 600 surface of layer by the way that non-irrigated small stream 640 is arranged, meanwhile, when rainfall is excessive, can lead to
It crosses non-irrigated small stream 640 to drain rainwater, non-irrigated small stream 640 also has certain water purification ability, can carry out rainwater preliminary filtering, and can incite somebody to action
Dirt retention in rainwater is inside non-irrigated small stream 640；And overflow pipe can be limited and be fixed by pipe fixing bracket 840,
And separate non-irrigated small stream 640 with overflow pipe, facilitate overflow pipe that the rainwater in non-irrigated small stream 640 is discharged.
When rainwater is overflowed into dividing strip from town road, due to the barrier effect by waterproof geotextiles, in rainwater infiltration
In the process, the bottom of town road is not penetrated into, that is, is trapped in biological cleaning stranded belt, and rainwater is during lower infiltration,
A degree of purification is carried out by the soil property of plantation layer 600 and plant first, removes rain water part greasy dirt and heavy metal, then
It is sufficiently filtered by filter layer 500, the rainwater that aquifer 300 is seeped under making reaches certain cleanliness, by permeable
When layer 400, the silt of filter layer 500 is stopped, prevents its lower seeps from blocking water-permeable pipe 700, by by aquifer 300 and storage
Water drainage blanket 200 is stored, and excessive rainfall is discharged from water-permeable pipe 700, this part rainwater may collect in water storage
In device, for irrigating and cleaning, water resource has been saved；Since the upper surface of plantation layer 600 is recessed arc, rainwater
Be difficult to be back on road after flowing into biological cleaning stranded belt, to alleviate the generation of urban waterlogging, and when amount of rainfall compared with
Greatly, when the accumulation of the middle part of planting soil layer is a certain amount of, by siphon pipe 820 by extra rainwater suction overfall pipe, and pass through
Main sewer 830 is discharged, and effectively rainwater is timely discharged, to realize infiltration, water storage, water purification, backwater, draining
Etc. multiple functions, town road is included in a part in sponge city.
Embodiment two
A kind of construction technology of biological cleaning stranded belt, the technique include the following steps:
Step 1: divide the width of band according in design of municipal road points of band and side, determine the width of biological cleaning stranded belt
Degree, and the excavation of foundation pit is carried out, the excavation of foundation pit is by the way of artificial bench excavation.
Step 2: waterproof geotextiles are laid with along the inner wall of foundation pit and foundation pit is completely covered to form waterproof geotextile layer
100, waterproof geotextiles are mutually stacked when being laid with, and seam crossing is at least overlapped 15cm or more, adopts between adjacent waterproof geotextiles
It is fixed with the form of suture or bonding, to guarantee the waterproofness of seam crossing.
Step 3: the extending direction along town road is laid with water-permeable pipe 700, water-permeable pipe in the middle position of bottom of foundation ditch
700 use diameter for the flexible porous tube 700 of 10cm, and water-permeable pipe 700 connects water-storing device or is directly connected under city
Water channel.
Step 4: successively laying water storage drainage blanket 200, aquifer 300, pervious bed 400 and filter layer 500 from bottom to up,
Detailed process are as follows:
Weight ratio is (1-3) by S01: the haydite and rubble of (6-10) pave after mixing in the bottom of foundation pit, and will be permeable
Pipe 700 covers, to obtain water storage drainage blanket 200, in the present embodiment, water storage drainage blanket 200 use weight ratio for the haydite of 3:8 with
Rubble, the diameter of haydite are 15-20mm, and the diameter of rubble is 20-30mm.
Weight ratio is (3-5): (5-8) by S02: diatomite, river sand and the coarse sand of (12-18) are laid on after being stirred
The top of water storage drainage blanket 200, and pave compacting and form aquifer 300, in the present embodiment, aquifer 300 uses weight ratio for 4:
Diatomite, river sand and the coarse sand of 8:15.
Permeable geotextiles 410 are laid on aquifer 300 after forming 410 layers of permeable geotextiles by S03, and water-permeable brick is tight
Close be laid on above permeable geotextiles 410 forms permeable brick layer 420, and 410 layers of permeable geotextiles and permeable brick layer 420 collectively form
Pervious bed 400, permeable geotextiles 410 just have the form for manually rolling paving to pave, and seam crossing is at least overlapped 5cm or more, permeable
Brick layer 420 is staggeredly laid with water-permeable brick by least two layers and closely tiles and formed, the seam by two layers of water-permeable brick, between lower layer's water-permeable brick
Gap is covered by upper layer water-permeable brick.
Weight ratio is 2:(6-8 by S04)；(2-4): after active carbon, fine sand, clay and the quartz sand of (3-5) are stirred
It is laid in permeable brick layer 420, and forms the first filter layer 510 after compacting of tiling, then glass fabric is laid on the first mistake
The second filter layer 520 is formed on filtering layer 510, the first filter layer 510 and the second filter layer 520 collectively form filter layer 500, this reality
It applies the first filter layer 510 in example to be made of active carbon, fine sand, clay and the quartz sand mixing that weight ratio is 2:6:4:4, glass fibers
Wei Bu seam crossing when being laid at least is overlapped 5cm.
Step 5: overflow pipe is subjected to assembling with main sewer 830 and is laid in along the extending direction of town road close
The medium position of foundation pit, the spacing of adjacent overflow pipe 810 is setting between 2.5-3.2m, and the nozzle and kind of overflow pipe 810
Plant the highest point flush of layer 600.
Step 6: being (3-6): (4-7): after flyash, charcoal and the planting soil of (75-85) are stirred by weight ratio
Mixed planting soil is obtained, mixed planting soil is laid on 500 top of filter layer and is fixed main sewer 830, and is being laid with
It is laid with stalk after to the first design height and forms stalk layer 620, and continues to be laid with mixing planting soil until the second design height, shape
At plantation layer 600, and simultaneously by plant layer 600 surface layer finishing in it is recessed when, the distance from bottom grade elevation 22- of concave surface
26cm, and dashpot 601 is reserved in the two sides of plantation layer 600；The powder that mixed layer 610 is 5:6:80 by weight ratio in the present embodiment
Coal ash, charcoal and planting soil mixing composition, stalk layer 620 with a thickness of 10-20cm, and surface distance designed elevation 1- thereon
1.25m。
Step 7: being (5-7) by weight ratio: the rubble and sepiolite of (15-20) are filled in shape in dashpot 601 after mixing
At erosion control brush layer 630, and surface layer is trimmed to and is tilted upward, in the present embodiment, erosion control brush layer 630 is the sea of 6:16 by weight ratio
Afrodite and rubble mixing composition.
Step 8: siphon pipe 820 is successively threaded through in each overflow pipe, and the end of siphon pipe 820 is made to be suspended at plantation
600 middle part top 2-5cm of layer, plugs pipe fixing bracket 840 at the middle part of plantation layer 600, and siphon pipe 820 is plugged on pipeline
It is fixed in fixed frame 840.
Step 9: the middle part for selecting diameter to be laid on plantation layer 600 for the cobblestone of 3-7cm forms non-irrigated small stream 640, non-irrigated small stream
640 total height is less than 12cm, and width is less than the overall width 1/5 of biological cleaning stranded belt.
It is a variety of to realize infiltration, water storage, water purification, backwater, draining etc. for the biological cleaning stranded belt made of above-mentioned technique
Function.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of Multifunctional sponge urban municipal road biological cleaning stranded belt characterized by comprising
It is laid on the waterproof geotextile layer of town road dividing strip inner wall；
Water storage drainage blanket, aquifer, pervious bed, filter layer and the plantation layer being successively laid with from the bottom to top, the plantation layer
Upper surface is in recessed arc；
The water-permeable pipe being threaded through in the water storage drainage blanket；And
Drainage system in the middle part of the plantation layer is set；
Wherein, the drainage system includes:
Several overflow pipes uniformly distributed along town road extending direction, the overflow pipe extend the surface of the plantation layer simultaneously
At least with plantation layer highest point flush；
One end is suspended in the middle part of plantation layer above minimum point and the other end bypasses the nozzle of the overflow pipe and is arranged in described overflow
The siphon pipe below the plantation layer is extended in flow tube；And
It is connected to the main sewer of each overflow pipe lower end.
2. Multifunctional sponge urban municipal road biological cleaning stranded belt according to claim 1, which is characterized in that institute
The two sides for stating plantation layer offer dashpot, and erosion control brush layer, the upper surface court of the erosion control brush layer are equipped in the dashpot
Setting is tilted upward to the side away from town road.
3. Multifunctional sponge urban municipal road biological cleaning stranded belt according to claim 2, which is characterized in that institute
It is (5-7) that erosion control brush layer, which is stated, by weight ratio: sepiolite and the rubble mixing of (15-20) form.
4. Multifunctional sponge urban municipal road biological cleaning stranded belt according to claim 1, which is characterized in that institute
It is (1-3) that water storage drainage blanket, which is stated, by weight ratio: haydite and the rubble mixing of (6-10) form.
5. Multifunctional sponge urban municipal road biological cleaning stranded belt according to claim 1, which is characterized in that institute
It is (3-5): (5-8) that aquifer, which is stated, by weight ratio: diatomite, river sand and the coarse sand mixing of (12-18) form.
6. Multifunctional sponge urban municipal road biological cleaning stranded belt according to claim 1, which is characterized in that institute
Stating pervious bed includes: to be laid on the permeable geotextiles above the aquifer and be laid on above the permeable geotextiles
Permeable brick layer.
7. Multifunctional sponge urban municipal road biological cleaning stranded belt according to claim 2, which is characterized in that institute
Stating filter layer includes: the first filter layer above the pervious bed is arranged in and is arranged in above first filter layer second
Filter layer, first filter layer are 2:(6-8 by weight ratio)；(2-4): active carbon, fine sand, clay and the quartz sand of (3-5)
Mixing composition, second filter layer is laid with by glass fabric to be formed.
8. Multifunctional sponge urban municipal road biological cleaning stranded belt according to claim 1, which is characterized in that institute
Stating plantation layer includes weight ratio for (3-6): (4-7): flyash, charcoal and the planting soil of (75-85) combine the mixing to be formed
Layer, stalk layer is embedded in the mixed layer.
9. Multifunctional sponge urban municipal road biological cleaning stranded belt according to claim 1, which is characterized in that institute
The middle part for stating plantation layer is equipped with non-irrigated small stream, is inserted with pipe fixing bracket in the drought small stream, the pipe fixing bracket include: stop collar and
Several fixed feets for being fixed on the stop collar, the siphon pipe are plugged in the stop collar.
10. a kind of construction technology of biological cleaning stranded belt, which is characterized in that the technique includes the following steps:
Step 1: dividing the width of band according in design of municipal road points of band and side, determine the width of biological cleaning stranded belt, and
Carry out the excavation of foundation pit；
Step 2: waterproof geotextiles are laid with along the inner wall of foundation pit and foundation pit is completely covered to form waterproof geotextile layer；
Step 3: the extending direction along town road is laid with water-permeable pipe in the middle position of bottom of foundation ditch；
Step 4: water storage drainage blanket, aquifer, pervious bed and filter layer, detailed process are successively laid from bottom to up are as follows:
Weight ratio is (1-3) by S01: the haydite and rubble of (6-10) pave after mixing in the bottom of foundation pit, and water-permeable pipe is covered
Lid, to obtain water storage drainage blanket；
Weight ratio is (3-5): (5-8) by S02: diatomite, river sand and the coarse sand of (12-18) are laid on water storage after being stirred
Above drainage blanket, and paves compacting and form aquifer；
Permeable geotextiles are laid on aquifer after forming permeable geotextile layer, water-permeable brick are closely laid on to permeable soil by S03
Permeable brick layer is formed above work cloth, permeable geotextile layer and permeable brick layer collectively form pervious bed；
Weight ratio is 2:(6-8 by S04)；(2-4): active carbon, fine sand, clay and the quartz sand of (3-5) are laid with after being stirred
The first filter layer is formed in permeable brick layer, and after compacting of tiling, then glass fabric is laid on the first filter layer and is formed
Second filter layer, the first filter layer and the second filter layer collectively form filter layer；
Step 5: overflow pipe and main sewer are subjected to assembling and are laid in foundation pit along the extending direction of town road
Portion position；
Step 6: being (3-6): (4-7) by weight ratio: flyash, charcoal and the planting soil of (75-85) obtain after being stirred
Mixed planting soil is laid on above filter layer and is fixed main sewer, and is being routed to the first design by mixed planting soil
It is laid with stalk after height and forms stalk layer, and continues to be laid with mixing planting soil until the second design height, forms plantation layer, and same
When by plant layer surface layer finishing in it is recessed when, the distance from bottom grade elevation 22-26cm of concave surface, and plantation layer two sides
Reserved dashpot；
Step 7: being (5-7) by weight ratio: the rubble and sepiolite of (15-20) are filled in dashpot after mixing and form erosion control
Brush layer, and surface layer is trimmed to and is tilted upward；
Step 8: siphon pipe is successively threaded through in each overflow pipe, and the end of siphon pipe is made to be suspended at top in the middle part of plantation layer
2-5cm。
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