CN111663624A - Urban road green belt sponge water storage device and water storage method thereof - Google Patents

Urban road green belt sponge water storage device and water storage method thereof Download PDF

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Publication number
CN111663624A
CN111663624A CN202010484021.0A CN202010484021A CN111663624A CN 111663624 A CN111663624 A CN 111663624A CN 202010484021 A CN202010484021 A CN 202010484021A CN 111663624 A CN111663624 A CN 111663624A
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CN
China
Prior art keywords
water
geotextile
pipe
water storage
soil
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Pending
Application number
CN202010484021.0A
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Chinese (zh)
Inventor
范镇玉
范利从
王晓飞
李彩云
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Sinohydro Bureau 11 Co Ltd
Powerchina 11th Bureau Engineering Co Ltd
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Sinohydro Bureau 11 Co Ltd
Powerchina 11th Bureau Engineering Co Ltd
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Application filed by Sinohydro Bureau 11 Co Ltd, Powerchina 11th Bureau Engineering Co Ltd filed Critical Sinohydro Bureau 11 Co Ltd
Priority to CN202010484021.0A priority Critical patent/CN111663624A/en
Publication of CN111663624A publication Critical patent/CN111663624A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F1/00Methods, systems, or installations for draining-off sewage or storm water
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/02Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F1/00Methods, systems, or installations for draining-off sewage or storm water
    • E03F1/002Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F3/00Sewer pipe-line systems
    • E03F3/04Pipes or fittings specially adapted to sewers
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins

Abstract

The invention belongs to the technical field of effective utilization of sponge urban construction rainwater, and particularly relates to an urban road green belt sponge water storage device and a water storage method thereof. The invention fully utilizes the urban road green belt or the urban green land to store the sponge water, and forms a rainwater passage system through the water collecting funnel, the vertical pipe, the horizontal branch pipe, the horizontal main pipe and the geotextile wrapped outside, and the system achieves the purposes of collecting rainwater and enhancing the rainwater permeability and fluidity through the small holes of the perforated pipe and the permeability of the geotextile, so that the rainwater can quickly permeate into the soil through the rainwater collection system, thereby promoting the development of the sponge city.

Description

Urban road green belt sponge water storage device and water storage method thereof
Technical Field
The invention belongs to the technical field of effective utilization of sponge urban construction rainwater, and particularly relates to an urban road green belt sponge water storage device and a water storage method thereof.
Background
In the construction of urban roads, expressways and partial towns, road green belts are widely applied, play a role in eliminating visual fatigue, purifying the environment, beautifying the city, weakening noise, absorbing harmful gases, releasing oxygen, reducing traffic accidents and the like, and occupy an irreplaceable important position in the construction of cities and highways. In the existing road green belt construction, two greening modes of a lifting type and a sinking type are generally adopted, relatively speaking, the lifting type green belt has a better safety effect on the advancing of vehicles, the traditional green belt construction method is that in the road construction process, a green belt part is reserved, concrete prefabricated parts are used as soil retaining curbstones around the green belt part after the road is finished, plant soil is backfilled after the road is installed in place, shrubs are planted for greening, low shrubs are generally used as main materials, and regular watering or natural rainwater is generally used for maintenance in the process. The method for planting shrubs has the advantages that the shrubs in green belts are relatively dense, the difficulty of loosening soil on artificial surface layers is high, the soil loosening operation is rarely carried out, the surface soil is in a hardened state in a long-time natural state, rainwater is lost along the surface layer during raining and hardly permeates into root systems of soil plants, or the water permeability is low, so that the growth of plants is not facilitated, in addition, the rainwater cannot permeate into the ground due to large-area ground hardening of a city, underground water cannot be effectively supplemented, the underground water level is reduced, the ecological development of the city is not facilitated, a method is adopted, a method is arranged in a road green belt or a green land of the city, part of rainwater can be effectively collected when rainwater exists, the infiltration capacity of the rainwater is increased, a certain rainwater collecting and storing function is provided, the water storing and saving function is achieved, the effective utilization of rainwater resources and the ecological environment protection are promoted, and the root systems of the shrubs in the green belts are ensured to quickly, the plant growth is promoted to become a part of a sponge city, particularly for northern areas with water shortage and rain shortage, the aim of combining infiltration and storage is achieved by how to increase the rainwater infiltration capacity of a road green belt when rainwater exists, and the problem is urgently needed to be solved by municipal greening engineering technicians.
The existing green belt for urban roads is only characterized in that a reserved green belt part is used as a soil retaining kerbstone before road pavement construction, then soil is backfilled, low shrubs, turf or other green plants are planted after leveling, then watering maintenance is carried out, and watering maintenance is not carried out regularly after survival. When the method is used for raining in rainy season, a large amount of rainwater runs off along the soil surface, and the rainwater collection is not facilitated.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a sponge water storage device for an urban road green belt and a water storage method thereof. The invention discloses a novel method for storing water in urban road greenbelts or urban green lands by using sponges, which improves the rainwater permeability and increases the water storage capacity of the greenbelts or the urban green lands by using the sponges, so as to achieve the purposes of fully collecting rainwater and effectively utilizing the rainwater.
In order to achieve the purpose, the invention adopts the following technical scheme: a sponge water storage device for urban road greenbelts comprises a water collection funnel, a vertical pipe, geotextile, a right-angle elbow and a three-way joint, wherein the water collection funnel is arranged along the length direction of the greenbelt, every interval is 1.5m, the water collection funnel is tightly attached to the inner side of a soil retaining curb, the inner bottom of the water collection funnel is lined with geotextile, the geotextile is tightly attached to the inner wall of the water collection funnel, graded broken stone is filled in the upper part of the inner lining geotextile of the water collection funnel, the geotextile is wrapped with geotextile by the upper part of the graded broken stone, the geotextile is firmly bound with the water collection funnel by a quick plastic binding band, the lower part of the water collection funnel is connected with the vertical pipe, the lower end of the vertical pipe is connected with a horizontal branch pipe, the outer surface of the horizontal branch pipe is wrapped with geotextile, the vertical pipe and the horizontal branch pipe are bonded by smearing hydrophilic glue through the right-angle elbow, the geotextile is firmly bound with the, the other end of the horizontal branch pipe is connected with the horizontal main pipe through a reducing tee joint, the joint is firmly bonded by using water adhesive, the horizontal branch pipe at the end part of the green belt is connected with the horizontal main pipe through a reducing elbow bend, the horizontal branch pipe and the horizontal main pipe are laid on the fly ash slag powder, the fly ash slag powder is leveled manually, the rainwater collection system is backfilled by using planting soil after being laid, and planting of green plants such as shrubs is carried out after backfilling.
The preferable riser is a PVC flower pipe with the diameter of phi 50mm, the water collecting funnel and the riser are connected through a matched PVC pipe hoop, and the joint is coated with water-based glue for bonding.
The geotextile is laminated by about 1.5cm after the preferable geotextile wraps the vertical pipe, the geotextile is firmly bound by the rapid plastic binding band, and the binding distance of the plastic binding band is 50 cm.
Preferably, the horizontal branch pipe is a PVC perforated pipe with the diameter of 50mm, the geotextile is overlapped by about 1.5cm after wrapping the outer surface of the horizontal branch pipe by the geotextile,
preferably, the horizontal main pipe is a PVC perforated pipe with the diameter of 75mm, the horizontal main pipe is wrapped by geotextile and is firmly bound with the horizontal main pipe by a quick plastic binding band, and the binding distance is 50 cm.
The preferable fly ash slag powder can be replaced by sandy soil with good permeability.
A water storage method of an urban road green belt sponge water storage device comprises the following steps:
(1) before surface layer construction is carried out after road foundation construction is finished, a measurer pays off lines according to the design size requirement at the reserved green belt part, then an excavator is used for downwards digging for 80cm, and manual matching machinery is used for leveling after the digging depth meets the requirement; according to the position and the size of the designed green belt, the position of the soil retaining curb of the green belt is measured and lofted, the contour line of the green belt is marked, appropriate lofting points are encrypted every 10m of the straight line part, the curve part and the end part of the green belt, and the straight and smooth appearance contour line is ensured after the soil retaining curb is installed; when the curbstones are installed, firstly, cement mortar with the thickness of 3cm and the ratio of 1:3 is used for leveling, then, the soil-retaining curbstones are installed according to the designed elevation, and the soil-retaining curbstones need to be installed correctly without concave and convex, and the phenomena of front and back high and low staggered teeth are avoided;
(2) backfilling fly ash slag soil or sandy soil with good water permeability, wherein the backfilling is carried out in a layered mode, the thickness of each layer is about 20cm, appropriate compaction can be carried out in the backfilling process, the overlarge sedimentation of a green belt soil layer caused by rainwater infiltration in the later period is prevented, a water-permeable water storage layer area II is formed by backfilling, the thickness of the water-permeable water storage layer area II is about 50cm, and the leveling is carried out by manual cooperation with machinery after the thickness meets the requirement;
(3) after the water permeable and water storage layer II is leveled, the PVC floral tubes are installed, firstly, the horizontal main tubes are laid along the length direction of the green belt, the horizontal main tubes are generally provided with two channels, the distance between the horizontal main tubes 10 is one third of the width L of the green belt, when the width of the green belt exceeds 5m, the number of rows of the horizontal main tubes can be properly increased, the horizontal main tubes are PVC floral tubes with the diameter phi of 75mm, the horizontal main tubes are connected through matched PVC pipe hoops and firmly bonded through hydrophilic glue, the outer walls of the horizontal main tubes are wrapped through geotextile, the wrapped geotextile is overlapped by about 1.5cm, then the geotextile is firmly bundled through quick plastic bundling bands, the bundling distance is 50cm, the horizontal main tubes are provided with a reducing tee joint every 1.5m along the length direction, and the other ends of the tee joints are connected with the horizontal branch pipes;
(4) after the horizontal main pipe is laid in place, laying and installing the horizontal branch pipes and the vertical pipes, wherein one ends of the horizontal branch pipes are connected with the horizontal main pipe through the reducing tee joints, and for the position of the end of the green belt, the horizontal branch pipes are directly connected with the horizontal main pipe through the reducing right-angle elbows; the other ends of the horizontal branch pipes are connected with the vertical pipe through the right-angle elbow, the connecting parts of the horizontal branch pipes and the vertical pipe are firmly bonded by using aqueous adhesives, the horizontal branch pipes and the vertical pipe are wrapped by geotextile, the wrapped geotextile is laminated by about 1.5cm, and then the geotextile is firmly bound by using a quick plastic binding band;
(5) the water collecting funnel is installed and is in a round table shape, the straight section of the bottom of the water collecting funnel is connected with the upper end of the vertical pipe through a pipe hoop and is firmly bonded by using a water-based adhesive, geotextile is arranged in the water collecting funnel and then filled with graded broken stone, the upper part of the water collecting funnel is wrapped by geotextile, the geotextile is wrapped on the graded broken stone, a fast plastic binding band is used for binding and firmly binding, and the top of the water collecting funnel is lower than the top end of the soil retaining curb by about 8 cm;
(6) the utility model discloses a rainwater infiltration system, including rainwater infiltration system, the utility model discloses a rainwater infiltration system is set up to the rainwater infiltration system, the backfill of afforestation planting soil is carried out after the funnel that catchments finishes, carry out the layering during backfill, backfill the back in place, the planting of afforestation bush is generally with the low short shrub of four seasons such as short photinia fraseri, the earthing is trampled with artifical around the afforestation bush, the protection to rainwater collection system will be noted at the in-process of planting of filling out soil, prevent being damaged, afforestation bush is planted and is accomplished the back, afforestation planting soil top is less than 5cm in side stone top, in the inboard peripheral.
Preferably, the water storage method of the urban road green belt sponge water storage device is characterized in that the water permeable water storage zone II is composed of a water permeable water storage layer, the water permeable water storage layer is made of fly ash slag powder or sandy soil with good permeability, a planting soil zone I is arranged on the upper part of the water permeable water storage zone II, and an original soil zone III is arranged on the lower part of the water permeable water storage zone II; and the undisturbed soil layer area III is formed by undisturbed soil layers.
Preferably, the diameter of the upper part of the water collecting funnel is 100mm, and the diameter of the lower part of the water collecting funnel is 50 mm.
Compared with the prior art, the invention has the beneficial effects that: the device and the water storage method are convenient for rainwater collection, increase the permeability of rainwater, ensure that the rainwater quickly permeates to the roots of greening plants in a short time, and increase the permeation quantity in soil, so that the method can ensure the moisture required by plant growth, can effectively supplement the surrounding underground water, and promote the sustainable development of urban ecology;
the sponge water storage method for the urban road green belt has the advantages of simple and practical flow, flexible installation, convenient grasp and operation by constructors and the following effects:
(1) the funnel of rainwater collection system, can not be in time to permeate the rainwater in the soil in the future and collect, permeate the accumulation that carries out the rainwater through the system to the aquifer, and this system is three-dimensional and the plane combines together, is favorable to the infiltration of rainwater.
(2) Adopt the PVC floral tube in the system, the outer parcel geotechnological cloth of floral tube is carrying out the rainwater like this and is collecting the in-process, and earth can not enter into the floral tube in, avoids causing the jam to the floral tube.
(3) The construction method has the advantages of reasonable device structure, flexible installation, simple process, low manufacturing cost, easy acceptance by workers during construction, capability of ensuring the engineering quality and good ecological benefit.
(4) The water storage layer adopts fly ash slag powder or sandy soil, and the water storage layer is formed at the root of the planting layer, so that on one hand, accumulation of rainwater is facilitated, and on the other hand, rainwater can permeate into soil through the water storage layer, and urban underground water is effectively supplemented.
(5) And a green ecological water circulation system is gradually built, so that the urban problems of waterlogging, water pollution, hardened pavement and the like in the current city are solved.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
FIG. 1 is a schematic top view of the present invention.
Fig. 2 is a schematic view of the cross-sectional structure a-a in fig. 1.
Fig. 3 is a schematic view of the cross-sectional structure B-B in fig. 1.
Fig. 4 is a schematic view of the structure of the water collection funnel of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are provided only for illustrating the present invention and are not intended to limit the scope of the present invention.
Please refer to fig. 1-4, which illustrates an urban road green belt sponge water storage device, comprising a water collecting funnel 3, a vertical pipe 5, a geotextile 31, a lining geotextile 33, a quarter bend 6, and a tee joint 91, wherein the water collecting funnel 3 is arranged at every 1.5m along the length direction of the green belt, the water collecting funnel 3 is tightly attached to the inner side of a soil retaining curb 4, the bottom of the water collecting funnel 3 is provided with a geotextile 33, the lining geotextile 33 is tightly attached to the inner wall of the water collecting funnel 3, the upper part of the lining geotextile 33 of the water collecting funnel 3 is filled with graded broken stones 32, the graded broken stones 32 are wrapped by the geotextile 31, the geotextile 31 is firmly bound with the water collecting funnel by a fast plastic binding band, the vertical pipe 5 is connected below the water collecting funnel 3, the vertical pipe 5 is a PVC flower pipe with a diameter of phi 50mm, the water collecting funnel 3 is connected with the vertical pipe 5 by a PVC pipe hoop, the joint is coated with water-based adhesive for bonding, the vertical pipe 5 is externally coated with geotextile, the geotextile is coated on the vertical pipe 5 and then is laminated by about 1.5cm, the geotextile is firmly bound by the rapid plastic binding band, the binding distance of the plastic binding band is 50cm, the lower end of the vertical pipe 5 is connected with the horizontal branch pipe 9, the vertical pipe 5 and the horizontal branch pipe 9 are coated with hydrophilic adhesive for bonding through the quarter bend 6, the horizontal branch pipe 9 is a PVC (polyvinyl chloride) floral tube with the diameter of 50mm, the outer surface of the horizontal branch pipe 9 is coated with geotextile, the geotextile is superposed by about 1.5cm, the geotextile is firmly bound with the horizontal branch pipe 9 by the rapid plastic binding band, the other end of the horizontal branch pipe 9 is connected with the horizontal main pipe 10 through the reducer tee joint 91, the joint is firmly bound by the water-based adhesive, the horizontal branch pipe 9 at the end of the greening belt is connected with the horizontal main pipe 10 through, the horizontal main pipe 10 is a PVC floral pipe with the diameter of 75mm, the horizontal main pipe 10 is wrapped by geotextile, and is firmly bound with the horizontal main pipe by a rapid plastic binding band, and the binding distance is 50 cm; the horizontal branch pipes 9 and the horizontal main pipe 10 are laid on fly ash slag powder with the thickness of 50cm, the fly ash slag powder is leveled manually, and the fly ash slag powder can be replaced by sandy soil with good permeability; and backfilling the rainwater collection system with planting plain soil after the rainwater collection system is laid, and planting greening plants such as shrubs and the like after backfilling.
A sponge water storage method for urban road green belts comprises the following steps:
(1) before surface layer construction is carried out after road foundation construction is finished, a measurer pays off lines according to the design size requirement at the reserved green belt part, then an excavator is used for downwards digging for 80cm, and manual matching machinery is used for leveling after the digging depth meets the requirement; according to the position and the size of the designed green belt, the position of the soil retaining side stones of the green belt is measured and lofted, the contour line of the green belt is marked, and every 10m of the straight line part, the curve part and the end part of the green belt are appropriately encrypted, so that the straight and smooth appearance contour line after the soil retaining side stones are installed is ensured; when the curbstones are installed, firstly, cement mortar with the thickness of 3cm being 1:3 is used for leveling, then the soil-retaining curbstones 4 are installed according to the designed elevation, the soil-retaining curbstones 4 need to be installed correctly, the phenomena of concave and convex, front and back high and low staggered teeth are avoided, and the top ends of the soil-retaining curbstones are ensured to be smooth, smooth and attractive;
(2) backfilling fly ash slag soil or sandy soil with good water permeability, backfilling layer by layer when backfilling, wherein the thickness of each layer is about 20cm, compacting properly in the backfilling process to prevent overlarge settlement of a green belt soil layer caused by rainwater penetration in the later period, backfilling to form a water-permeable water storage layer area II, wherein the thickness of the water-permeable water storage layer area II is about 50cm, and leveling by manually matching with a machine after the thickness meets the requirement; the permeable water storage zone II is composed of a permeable water storage layer 7, the permeable water storage layer 7 is preferably made of fly ash slag powder or sandy soil with good permeability, a planting soil zone I is arranged at the upper part of the permeable water storage zone II, and an original soil zone III is arranged at the lower part of the permeable water storage zone II; the undisturbed soil layer area III is composed of undisturbed soil layers 8,
(3) after leveling the permeable water storage layer II, the PVC flower tubes are installed, the horizontal main pipe 10 is laid firstly, the horizontal main pipe 10 is laid along the length direction of the green belt, two horizontal main pipes 10 are generally arranged, the distance between the horizontal main pipes 10 is one third of the width L of the green belt, two rows are arranged, when the width of the green belt exceeds 5m, the row number of the horizontal main pipes 10 can be properly increased, the horizontal main pipes 10 are PVC flower pipes with the diameter phi of 50mm, the horizontal main pipes 10 are connected by matched PVC pipe hoops and firmly bonded by hydrophilic glue, the outer walls of the horizontal main pipes 10 are wrapped by geotextile, the wrapped geotextile is laminated by about 1.5cm, then a fast plastic binding band is used for firmly binding, the binding distance is 50cm, a reducing tee joint 91 is arranged at the interval of 1.5m along the length direction of the horizontal main pipe 10, and the other end of the tee joint 91 is connected with the horizontal branch pipe 9.
(4) After the horizontal main pipe 10 is laid in place, the horizontal branch pipe 9 and the vertical pipe 5 are laid and installed, one end of the horizontal branch pipe 9 is connected with the horizontal main pipe 10 through the reducing three-way joint 91, and for the position of the end of the green belt, the horizontal branch pipe 9 is directly connected with the horizontal main pipe 10 through the reducing right-angle elbow 6; the other ends of the horizontal branch pipes 9 are connected with the vertical pipe 5 through the right-angle elbow 6, the connecting parts of the horizontal branch pipes 9 and the vertical pipe 5 are firmly bonded by using water adhesives, the horizontal branch pipes 9 and the vertical pipe 5 are wrapped by geotextile, the wrapped geotextile is laminated by about 1.5cm, and then the geotextile is bound by using a quick plastic binding band for fixation;
(5) the water collecting funnel 3 is installed, the water collecting funnel 3 is in a circular truncated cone shape, the diameter of the upper portion of the water collecting funnel 3 is 100mm, the diameter of the lower portion of the water collecting funnel 3 is 50mm, the straight section of the bottom of the water collecting funnel 3 is connected with the upper end of the vertical pipe 5 through a pipe hoop, the straight section is firmly bonded through water-based adhesive, the inner wall of the water collecting funnel 3 is provided with geotextile 33, then graded broken stone 32 is filled in the inner wall of the water collecting funnel 3, the upper portion of the water collecting funnel 3 is wrapped through geotextile, the geotextile is wrapped on the upper portion of the graded broken stone 32 and is firmly bound through a quick plastic binding band, and the top of the water collecting funnel 3;
(6) the utility model discloses a rainwater infiltration system, including funnel 3, catchment funnel 3, the backfill of afforestation planting soil 1 is carried out after the installation finishes, carry out the layering backfill during the backfill, backfill the back in place, carry out the planting of afforestation bush 2, afforestation bush 2 generally uses the low bush of four seasons such as short photinia fraseri, the earthing up around afforestation bush 2 is trampled with the manual work, the in-process of planting at the fill soil is paid attention to the protection to rainwater collection system, prevent being damaged, afforestation bush 2 plants the back that finishes, afforestation planting soil 1 top is less than the top distance of retaining curb 4 and is 5cm, position department at retaining curb 4, reserve the intercepting ditch along length direction, so that when raining, come too late infiltration rainwater to collect behind the intercepting ditch through catchment funnel 3 after entering rainwater infiltration system. The water storage method comprises a water collecting funnel 3, the water collecting funnel 3 is used for collecting rainwater, flower pipes and a water permeable water storage layer II, the flower pipes are made of PVC materials, the flower pipes are connected through PVC right-angle joints and tee joints, the flower pipes are firmly bonded through hydrophilic glue to form a whole, and the effects of permeation and water storage are achieved through the water storage layer. The invention fully utilizes the urban road green belt or the urban green land to store the sponge water, a rainwater channel system is formed by the water collecting funnel 3, the vertical pipe 5, the horizontal branch pipe 9, the horizontal main pipe 10 and the geotextile wrapped outside, and the system achieves the purposes of collecting rainwater and enhancing the rainwater permeability and the fluidity through the small holes of the perforated pipe and the permeability of the geotextile, thereby promoting the development of the sponge city. Compared with the prior art, the invention has the advantages of 1, simple structure, convenient installation, simple operation process flow and easy acceptance of construction personnel; 2. the input resources are less, and the PVC pipe is buried underground, so that the service life of the PVC pipe is prolonged; 3. when raining, rainwater cannot permeate into soil in time and enters the water storage layer through the water collection funnel, surface runoff is reduced, urban waterlogging is relieved, and underground water is supplemented; 4. a thinking mode with low influence on development is developed, the concept is changed, and the ecological environment is achieved from every point; 5. the cost of maintenance is low, only need to clear up the dross or the leaf of funnel surface gathering with the manual work when rainy season every year, guarantees that rain water can get into rainwater collection system smoothly.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims (9)

1. The sponge water storage device for the urban road green belts is characterized by comprising a water collecting funnel, a vertical pipe, geotextile, a reducing elbow bend and a three-way joint, wherein the water collecting funnel is arranged along the length direction of the green belt, one water collecting funnel is arranged every 1.5m and is tightly attached to the inner side of a soil retaining curb, the bottom of the water collecting funnel is provided with geotextile, the geotextile is tightly attached to the inner wall of the water collecting funnel, graded broken stones are filled in the upper part of the geotextile of the water collecting funnel, the upper part of the graded broken stones is covered with the geotextile, the geotextile is firmly bound with the water collecting funnel by a rapid plastic binding band, the lower part of the water collecting funnel is connected with the vertical pipe, the geotextile is wrapped outside the vertical pipe, the lower end of the vertical pipe is connected with a horizontal branch pipe, the outer surface of the horizontal branch pipe is wrapped by the geotextile, the vertical pipe and the horizontal branch pipe are bonded by coating a water-based, the geotechnical cloth is tied up firmly with quick plastics binding ribbon and horizontal branch pipe, the other end of horizontal branch pipe and horizontal person in charge are connected through reducing three way connection, and the water-based adhesive that bonds firmly connects, and the horizontal branch pipe of greenbelt tip is responsible for through reducing elbow bend and level and is connected, horizontal branch pipe and horizontal person in charge lay on fly ash slag powder, fly ash slag powder make level with the manual work, backfill with planting plain soil after rainwater collection system finishes laying, carry out planting of green plants such as bush after backfilling.
2. The urban road green belt sponge water storage device as claimed in claim 1, wherein the vertical pipe is a PVC flower pipe with a diameter of 50mm, the water collection funnel and the vertical pipe are connected through a PVC pipe hoop, and the joint is coated with water-based glue for bonding.
3. The urban road green belt sponge water storage device according to claim 2, wherein the geotextile is laminated by about 1.5cm after being wrapped by the geotextile, the geotextile is firmly bound by the rapid plastic binding tapes, and the binding distance of the plastic binding tapes is 50 cm.
4. The urban road green belt sponge water storage device as claimed in claim 1, wherein the horizontal branch pipe is a PVC flower pipe with a diameter of 50mm, and the geotextile is laminated by about 1.5cm after wrapping the outer surface of the horizontal branch pipe with the geotextile.
5. The urban road green belt sponge water storage device as claimed in claim 4, wherein the horizontal main pipe is a PVC floral pipe with a diameter of 75mm, the horizontal main pipe is wrapped by geotextile and tied firmly by a fast plastic binding band with a binding distance of 50 cm.
6. The urban road green belt sponge water storage device as claimed in claim 5, wherein the fly ash slag powder can be replaced by sandy soil with good permeability.
7. A water storage method of the urban road green belt sponge water storage device according to any one of claims 1 to 6, characterized by comprising the following steps:
(1) before the pavement construction is carried out after the construction of the road foundation part is finished, a measurer lays out lines on the reserved green belt part according to the design size requirement, then an excavator is used for digging downwards to the depth of 80cm, and the digging depth meets the requirement, and then the leveling is carried out manually and mechanically; according to the position and the size of the designed green belt, the position of the soil retaining side stones of the green belt is measured and lofted, the contour line of the green belt is marked, and every 10m of the straight line part, the curve part and the end part of the green belt are appropriately encrypted, so that the straight and smooth appearance contour line after the soil retaining side stones are installed is ensured; when the curbstones are installed, firstly, cement mortar with the thickness of 3cm and the ratio of 1:3 is used for leveling, then, the soil-retaining curbstones are installed according to the designed elevation, and the soil-retaining curbstones need to be installed correctly without concave and convex, and the phenomena of front and back high and low staggered teeth are avoided;
(2) backfilling fly ash slag soil or sandy soil with good water permeability, wherein the backfilling is carried out in a layered mode, the thickness of each layer is about 20cm, appropriate compaction can be carried out in the backfilling process, the overlarge sedimentation of a green belt soil layer caused by rainwater infiltration in the later period is prevented, a water-permeable water storage layer area II is formed by backfilling, the thickness of the water-permeable water storage layer area II is about 50cm, and the leveling is carried out by manual cooperation with machinery after the thickness meets the requirement;
(3) after the water permeable and water storage layer II is leveled, the PVC floral tubes are installed, firstly, the horizontal main tubes are laid along the length direction of the green belt, the horizontal main tubes are generally provided with two channels, the distance between the horizontal main tubes 10 is one third of the width L of the green belt, when the width of the green belt exceeds 5m, the number of rows of the horizontal main tubes can be properly increased, the horizontal main tubes are PVC floral tubes with the diameter phi of 75mm, the horizontal main tubes are connected through matched PVC pipe hoops and firmly bonded through hydrophilic glue, the outer walls of the horizontal main tubes are wrapped through geotextile, the wrapped geotextile is overlapped by about 1.5cm, then the geotextile is firmly bundled through quick plastic bundling bands, the bundling distance is 50cm, the horizontal main tubes are provided with a reducing tee joint every 1.5m along the length direction, and the other ends of the tee joints are connected with the horizontal branch pipes;
(4) after the horizontal main pipe is laid in place, laying and installing the horizontal branch pipe and the vertical pipe, wherein one end of the horizontal branch pipe is connected with the horizontal main pipe through a reducing tee joint, and for the position of the end of the green belt, the horizontal branch pipe is connected with the horizontal main pipe through a reducing right-angle elbow; the other ends of the horizontal branch pipes are connected with the vertical pipe through the right-angle elbow, the connecting parts of the horizontal branch pipes and the vertical pipe are firmly bonded by using aqueous adhesives, the horizontal branch pipes and the vertical pipe are wrapped by geotextile, the wrapped geotextile is laminated by about 1.5cm, and then the geotextile is firmly bound by using a quick plastic binding band;
(5) mounting a water collecting funnel, wherein the water collecting funnel is in a round table shape, a straight section at the bottom of the water collecting funnel is connected with the upper end of a vertical pipe through a pipe hoop and is firmly bonded by using a water-based adhesive, graded broken stones are filled in the water collecting funnel after the water collecting funnel is lined with geotextile, then the upper part of the water collecting funnel is wrapped by geotextile, the geotextile is wrapped on the upper part of the graded broken stones and is firmly bound by using a quick plastic binding band, and the top of the water collecting funnel is lower than the top end of a soil retaining curb by about 8 cm;
(6) the utility model discloses a rainwater infiltration system, including rainwater collection funnel, rainwater infiltration system, water collection funnel, afforestation planting soil backfill after finishing, carry out the layering during backfill, backfill the back in place, the planting of afforestation bush is carried out, afforestation bush generally uses the low short bush of four seasons such as low photinia fraseri, the earthing up is trampled with artifical around the afforestation bush, the protection to rainwater collection system will be noted at the in-process of planting of filling up soil, prevent being damaged, afforestation bush is planted and is accomplished the back, afforestation planting soil top is less than and keeps off curbstone top distance and be 5cm, keep off curbstone position, reserve the intercepting ditch along length direction, so that when raining, come too late infiltration rainwater to collect behind the intercepting ditch through water collection.
8. The method for storing water in the sponge water storage device for urban road green belts according to claim 7, characterized in that the water permeable water storage zone II is composed of a water permeable water storage layer, the water permeable water storage layer is made of fly ash slag powder or sandy soil with good permeability, a planting soil zone I is arranged on the upper part of the water permeable water storage zone II, and an original soil zone III is arranged on the lower part of the water permeable water storage zone II; and the undisturbed soil layer area III is formed by undisturbed soil layers.
9. The method for storing water in the sponge water storage device for urban road green belts as claimed in claim 7, wherein the diameter of the upper part of the water collection funnel is 100mm, and the diameter of the lower part of the water collection funnel is 50 mm.
CN202010484021.0A 2020-06-01 2020-06-01 Urban road green belt sponge water storage device and water storage method thereof Pending CN111663624A (en)

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CN209323643U (en) * 2018-11-22 2019-08-30 中国轻工业南宁设计工程有限公司 A kind of sponge-type rain penetration discharge structure
CN110528351A (en) * 2019-09-06 2019-12-03 广东洋艺建设有限公司 A kind of sponge municipal drainage structure and sponge city water cycle method
CN110725179A (en) * 2019-11-20 2020-01-24 南京信息工程大学 Multifunctional rainwater tree well structure and operation and maintenance method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110045209A (en) * 2009-10-26 2011-05-04 미라클워터 주식회사 Treatment apparatus for rain water
CN106759825A (en) * 2016-12-14 2017-05-31 浙江建设职业技术学院 A kind of construction method of sponge urban green space water storage system
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