CN204206806U - Overflow-type Rain Garden system - Google Patents
Overflow-type Rain Garden system Download PDFInfo
- Publication number
- CN204206806U CN204206806U CN201420373705.3U CN201420373705U CN204206806U CN 204206806 U CN204206806 U CN 204206806U CN 201420373705 U CN201420373705 U CN 201420373705U CN 204206806 U CN204206806 U CN 204206806U
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- rainwater
- spilling water
- overflow
- water wall
- growing area
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 239000004576 sand Substances 0.000 claims abstract description 14
- 239000002689 soil Substances 0.000 claims abstract description 13
- 239000004746 geotextile Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005406 washing Methods 0.000 abstract description 5
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 239000003086 colorant Substances 0.000 abstract description 4
- 238000000746 purification Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000012856 packing Methods 0.000 description 6
- 230000035699 permeability Effects 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001914 calming effect Effects 0.000 description 2
- 230000010485 coping Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005183 environmental health Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
Classifications
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- 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
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- Sewage (AREA)
Abstract
The utility model discloses a kind of overflow-type Rain Garden system, comprising growing area and being positioned at growing area makes rainwater form the spilling water wall of cross flow drop, described spilling water wall is step-like distribution along growing area entirety, described spilling water wall is the arc spilling water wall of entirety in bow font be made up of parapet and high-wall interval, be equipped with planting soil layer and sand filter blanket and boulder bed under described growing area successively, perforated drain pipe is arranged in boulder bed and is communicated with municipal storm sewer or rainwater reuse collection conduit with spilling water well respectively; By extending rainwater fashionable colors, facilitate rainwater in water holding district hold stream and under ooze, reduce rainfall runoff washing away the zone of vegetation simultaneously, realize the initial stage purification of road runoff rainwater in residential quarter, the reduction of outer row's runoff volume and the effective buffering to road runoff crest discharge during heavy rain, improve purifying rainwater ability, and be fully combined with surrounding enviroment, form certain landscape effect.
Description
Technical field
The utility model relates to, and belongs to rainwater comprehensive utilization and environmental protection technical field, particularly a kind of overflow-type Rain Garden system.
Background technology
Rainwater is the important step in city water cycle and the regional water circulatory system, to adjustment, supplements regional water, improves the ecological environment that it is very crucial to play a part.China is in the stage of High-speed Urbanization at present, and along with raising and the economic fast development of the level of urbanization, urban rainwater problem just more shows especially out, and main manifestations is: rainwater runoff pollution is serious; Urban Flood Waterlogging increased risk; Rainwater resource runs off in a large number; Urban ecological environment destruction is serious.Because Permeable stratum area various in city rolls up, traditional municipal storm-water system is it is emphasised that collect as early as possible and discharge city overland runoff, simultaneously direct the rainwater not adding process is directly disposed to water body, there are two drawbacks in this mode: 1. accelerates rainwater and collect to the water body of near cities, water body crest discharge is formed rapidly, larger pressure is caused to low lying areas; 2. early-stage rainwater is mingled with the environmental health that a large amount of pollutant directly to threaten water body; 3. traditional cities sewer cannot drain crest discharge in time completely, and the rainwash formed rapidly easily causes effectiveness factors to city.Urban rainwater problem is not only the key factor of the restriction national economic development, and be the serious problem of society today threatening people ' s health and the security of the lives and property, while the flood brought heavy rain and contamination accident are controlled, again heavy rain is regarded as important water resource be used, become the major issue that current urban development faces.
Ecological treatment at present for rainwater is more and more general, and the method is compared with traditional treatment method, and cost is lower, and is conducive to preserving the ecological environment.General principle is, when carrying the rainwater of pollutant through ecological treatment system, be with pollutant such as COD, SS, TP, TN, heavy metal etc. to be utilized or be broken down into low stain material or innocuous substance by Systemic absorption, thus water quality is purified.Urban rainwater self-purification both at home and abroad and disposal technology develop rapidly at present, such as a kind of baffling type constructed wetland device processing low-concentration area source pollution, reflecting flow type undercurrent artificial everglade, based on the Rain Garden etc. of low impact exploitation.These methods have investment operating cost lower, simple and convenient management and have the advantages such as certain aesthetic values, but urge to ooze to reduce in the water yield to emphasize deficiency at rainwater, do not take into full account the ecoscape harmony of rainwater-collecting facility and road and surrounding enviroment, and rainwater-collecting facility purifying rainwater scarce capacity, fully can not cushion again crest discharge during heavy rain.
Summary of the invention
The purpose of this utility model is to provide a kind of overflow-type Rain Garden system, by extending rainwater fashionable colors, facilitate rainwater in water holding district hold stream and under ooze, reduce rainfall runoff washing away the zone of vegetation simultaneously, realize the initial stage purification of road runoff rainwater in residential quarter, the reduction of outer row's runoff volume and the effective buffering to road runoff crest discharge during heavy rain, and be fully combined with surrounding enviroment, form certain landscape effect, conservation of nature environment, beautifying city living environment, improve urban air-quality, maintain the aspect advantages such as nature hydrology cyclic balance, LID technology in conjunction with process rainwater of the present utility model can be combined with traffic calming technology, while Collection utilization road rain water, alleviate the traffic safety problem such as overspeed of vehicle, the safety of further raising road traffic system.
A kind of overflow-type Rain Garden system of the present utility model, comprising growing area and being positioned at growing area makes rainwater form the spilling water wall of cross flow drop, described spilling water wall is step-like distribution along growing area entirety, described spilling water wall is the arc spilling water wall of entirety in bow font be made up of parapet and high-wall interval, be equipped with planting soil layer and sand filter blanket and boulder bed under described growing area successively, perforated drain pipe is arranged in boulder bed and is communicated with municipal storm sewer or rainwater reuse collection conduit with spilling water well respectively;
Further, the high-wall of described arc spilling water wall exceeds parapet 15cm and arranges; Geotextiles is provided with between described planting soil layer and sand filter blanket and boulder bed.
Further, described perforated drain pipe is responsible for by perforation vertical each other and multiple perforation arm forms, and the water side of described perforation supervisor is communicated with municipal storm sewer or rainwater reuse collection conduit, and the perforated area ratio of described perforated drain pipe is not less than 15%;
Further, along growing area circumference be provided with band gap kerbstone, its gap in fall isosceles trapezoid shape, along kerbstone spaced set; Described arc spilling water coping flushes setting with bottom the gap of kerbstone;
Further, described overflow well is arranged at and arranges with the parapet top 5cm exceeding arc spilling water wall along water (flow) direction;
Further, described perforated drain pipe lays perforation supervisor along planar water flow path direction, lays the gradient >=0.003, and arranges the perforation arm perpendicular to perforation supervisor every 1.5m;
Further, described arc spilling water wall is concrete;
Further, planting soil layer (11) is made up of planting soil and fine sand, coefficient of permeability K>=10
-5m/s, sand filter blanket be in, the mixing of coarse sand, coefficient of permeability K>=10
-5m/s, boulder bed adopts the cobble of particle diameter 20-30mm, coefficient of permeability K>=10
-5m/s, planting, in water holding district, arranges the gentle slope of 1% along water (flow) direction at the bottom of water holding district.
The beneficial effects of the utility model: overflow-type Rain Garden system of the present utility model, by extending rainwater fashionable colors, facilitate rainwater in water holding district hold stream and under ooze, reduce rainfall runoff washing away the zone of vegetation simultaneously, reduce rainfall runoff washing away the zone of vegetation simultaneously, and the initial stage purification of road runoff rainwater in residential quarter can be realized, the reduction of outer row's runoff volume and the effective buffering to road crest discharge during heavy rain, and be fully combined with surrounding enviroment, form certain landscape effect, conservation of nature environment, beautifying city living environment, improve urban air-quality, maintain the aspect advantages such as nature hydrology cyclic balance.LID technology in conjunction with process rainwater of the present utility model can be combined with traffic calming technology, while Collection utilization road rain water, alleviate the traffic safety problem such as overspeed of vehicle, improve the safety of road traffic system further.Such as, this system can share with other rain processing systems (as can the shallow careless trench system of overflow-type of Collection utilization road rain water), receive the draining (comprising runoff draining and underground water delivery etc.) of other rain processing systems, and with permeable garage Road System, permeable People's Bank of China Road System, the shallow careless trench systems of overflow-type etc. combine the large-scale rain processing system forming the garden type anti-rain-impact system being used for residential quarter road, make it when rainfall, overflow-type Rain Garden system not only can process the rainwater that upstream is come, also process the rainfall on own layer area, also by being with the road surface runoff rainwater on the permeable garage in the kerbstone process side road surface of gap, and opposite side adjacent permeable People's Bank of China road surface discharged by outlet ooze draining and road surface runoff rainwater thereof.At the rainfall initial stage, under first the rainwater that overflow-type Rain Garden is collected passes through, infilter the packing layer into bottom, collect through perforated drain pipe after the filtration of packing layer and drain; Along with the increase of rainfall intensity and rain time, the rainwater infiltration amount in overflow-type Rain Garden is less than periphery and upstream inflow gradually, and overflow-type Rain Garden starts ponding, and depth of accumulated water is increased to the height at the parapet top of arc spilling water wall gradually; The mode that the rainwater exceeded afterwards drops with cross flow is flowed to next lattice by three parapet tops, place of arc spilling water wall, forms certain landscape effect.Overflow-type Rain Garden system can cushion the scouring force of upland water further, reduces flow rate of water flow, adds the settling velocity of Residual contamination thing in rainwater, reduces the run-off in whole watershed.In addition, overflow-type Rain Garden system can also, to the mode of extension width in driveway, make road narrow at crossing's road width, thus impels the reduction speed of a motor vehicle of sending a car by crossing, improves the safety of road traffic system.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the profile of Fig. 1;
Fig. 3 is the distribution map of perforated drain pipe;
But Fig. 4 is arc waterwall vertical view;
But Fig. 5 is arc waterwall facade expanded view.
Embodiment
Fig. 1 is structural representation of the present utility model, and Fig. 2 is the profile of Fig. 1; Fig. 3 is the distribution map of perforated drain pipe; But Fig. 4 is arc waterwall vertical view; But Fig. 5 is arc waterwall facade expanded view.As shown in the figure: the overflow-type Rain Garden system of the present embodiment, comprising growing area 1 and being positioned at growing area 1 makes rainwater form the spilling water wall of cross flow drop, described spilling water wall is step-like distribution along growing area 1 entirety, described spilling water wall is the arc spilling water wall 2 of entirety in bow font be made up of parapet and high-wall interval, described growing area is equipped with planting soil layer 21 and sand filter blanket 22 and boulder bed 23 for 1 time successively, and perforated drain pipe 3 is arranged in boulder bed 23 and is communicated with municipal storm sewer or rainwater reuse collection conduit with spilling water well 5 respectively; Perforated drain pipe 3 downstream end is communicated with municipal storm sewer or rainwater reuse collection conduit and arranges; by extending rainwater fashionable colors; facilitate rainwater in water holding district hold stream and under ooze; reduce rainfall runoff washing away the zone of vegetation simultaneously; and ensure the ecoscape harmony of rainwater-collecting facility and road and surrounding enviroment; improve purifying rainwater ability; crest discharge during abundant buffering heavy rain; conservation of nature environment; beautifying city living environment; improve urban air-quality, maintain the aspect advantages such as nature hydrology cyclic balance.
In the present embodiment, the high-wall of described arc spilling water wall 2 exceeds parapet 15cm and arranges; Geotextiles 14 is provided with between described planting soil layer 21 and sand filter blanket 22 and boulder bed 23.Cushion the scouring force of upland water, reduce flow rate of water flow, add the settling velocity of Residual contamination thing in rainwater, reduce the run-off in whole watershed, at the rainfall initial stage, infilter the packing layer into bottom under first the rainwater that overflow-type Rain Garden is collected passes through, after the filtration of packing layer, collected by the perforated drain pipe in boulder bed 23 and drain; Along with the increase of rainfall intensity and rain time, shallow careless ditch moderate rain under water milliosmolarity is less than the inflow of packing layer gradually, and overflow-type Rain Garden starts ponding, and depth of accumulated water is increased to the height at the parapet top of arc spilling water wall 2 gradually; The mode that the rainwater exceeded afterwards drops with cross flow is flowed to next lattice by three parapet tops, place of arc spilling water wall 2, forms certain landscape effect.
In the present embodiment, described perforated drain pipe is made up of perforation vertical each other supervisor 31 and multiple perforation arm 32, the water side of described perforation supervisor 31 is communicated with municipal storm sewer or rainwater reuse collection conduit, and the perforated area ratio of described perforated drain pipe 3 is not less than 15%; For the discharge of infiltration water, meet the reuse requirement of rainwater.
In the present embodiment, be provided with the kerbstone of band gap 4 along growing area 1 circumference, its gap 4 in falling isosceles trapezoid shape, along kerbstone spaced set; The top (high-wall top) of described arc spilling water wall 2 flushes setting with bottom the gap 4 of kerbstone; Collect by band gap formula kerbstone the runoff rainwater that process flows to garden system, be convenient to this system on a large scale with overall situation under with the comprehensive utilization of other system, for the comprehensive improvement of heavy rain and process provide condition.
In the present embodiment, described overflow well 5 is arranged at and arranges with the parapet top 5cm exceeding arc spilling water wall 2 along water (flow) direction; The overflow well 5 arranged can discharge off design runoff rainwater, under the anti-rain-impact system of whole garden type cuts down the prerequisite of runoff volume in watershed, can play the effect of safety drain.
In the present embodiment, described perforated drain pipe 3 lays perforation supervisor 31 along planar water flow path direction, lays the gradient >=0.003, and arranges the perforation arm 32 perpendicular to perforation supervisor 31 every 1.5m; Collection and the discharge of infiltration water is beneficial to by the combination of bore a hole supervisor 31 and perforation arm 32.
In the present embodiment, described arc spilling water wall is 2 concrete; Arc spilling water wall 2 is combined with rubble barrier tape 6, and arc spilling water wall 2 adopts concrete cast-in-situ, and structure is simple, and weather resistance is good, durable in use.Rubble barrier tape is made up of the rubble of different gradation; Barrier tape two ends adopt larger volume stone, and mid portion is primarily of different fritter cobblestone, the rubble composition of grating; Admix appropriate plain concrete cobble is fixed; Rubble barrier tape is placed into the soil a layer 50mm.
In above-described embodiment, planting soil layer is made up of planting soil and fine sand, coefficient of permeability K>=10
-5m/s, sand filter blanket adopt in, coarse sand, coefficient of permeability K>=10
-5m/s, boulder bed adopts the cobble of particle diameter 20-30mm, coefficient of permeability K>=10
-5m/s, planting, in water holding district, arranges the gentle slope of 1% along water (flow) direction at the bottom of water holding district; Selected plant needs water-fast, drought-enduring and has view sight, and perforated drain pipe adopts plastic material finished product perforated drain pipe, porosity of=15%, arranges a band comb rainwater inspection well every about 15 lattice water holding districts at perforated drain pipe main pipe place.
Embody rule example:
Overflow-type Rain Garden system the widest part beam overall is 3.8m, clear span 3.5m, longitudinal gradient 0.005; The plantation layer of overflow-type Rain Garden system and packing layer, be respectively from the bottom to top: 55cm thick plantation soil layer, the thick middle sand filter blanket of 20cm, the thick boulder bed of 40cm.Be arranged in the perforated drain pipe of boulder bed, supervisor's caliber is d300, percent opening 0.15, and longitudinal gradient is 0.005; Perforated drain pipe arm 14 caliber d200, percent opening 0.15 is 0.003 along the water (flow) direction gradient.Band comb rainwater inspection well one is set at growing area end, and well comb top mark exceeds the most arc spilling water coping 5cm; The rainwater exceeding disposal ability by the overflow of band comb rainwater inspection well to the municipal storm sewer in downstream or rainwater reuse collection conduit.Wall material around overflow-type Rain Garden system is the clear rectangular slab of stone, and the material of arc spilling water wall or a word spilling water wall is concrete cast-in-situ.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. an overflow-type Rain Garden system, it is characterized in that: comprise growing area (1) and be positioned at the spilling water wall that growing area (1) makes rainwater formation cross flow drop, described spilling water wall is step-like distribution along growing area (1) entirety, described spilling water wall is the arc spilling water wall (2) of entirety in bow font be made up of parapet and high-wall interval, planting soil layer (11) and sand filter blanket (12) and boulder bed (13) is equipped with successively under described growing area, perforated drain pipe (3) is arranged in boulder bed (13) and is communicated with municipal storm sewer or rainwater reuse collection conduit with spilling water well (5) respectively.
2. overflow-type Rain Garden system according to claim 1, it is characterized in that: the high-wall of described arc spilling water wall (2) exceeds parapet 15cm and arranges, between described planting soil layer (11) and sand filter blanket (12) and boulder bed (13), be provided with geotextiles (14).
3. overflow-type Rain Garden system according to claim 2, it is characterized in that: described perforated drain pipe (3) is responsible for (31) by perforation vertical each other and multiple perforation arm (32) forms, the water side of described perforation supervisor (31) is communicated with municipal storm sewer or rainwater reuse collection conduit, and the perforated area ratio of described perforated drain pipe (3) is not less than 15%.
4. overflow-type Rain Garden system according to claim 3, it is characterized in that: the kerbstone being provided with band gap (4) along growing area (1) circumference, its gap (4) in fall isosceles trapezoid shape, along kerbstone spaced set; The top of described arc spilling water wall (2) flushes setting with bottom the gap of kerbstone.
5. overflow-type Rain Garden system according to claim 4, is characterized in that: described overflow well (5) is arranged at and arranges with the parapet top 5cm exceeding arc spilling water wall along water (flow) direction.
6. overflow-type Rain Garden system according to claim 5, it is characterized in that: described perforated drain pipe (3) lays perforation supervisor (31) along planar water flow path direction, lay the gradient >=0.003, and the perforation arm (32) perpendicular to perforation supervisor (31) is set every 1.5m.
7. overflow-type Rain Garden system according to claim 6, is characterized in that: described arc spilling water wall (2) is concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373705.3U CN204206806U (en) | 2014-07-04 | 2014-07-04 | Overflow-type Rain Garden system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373705.3U CN204206806U (en) | 2014-07-04 | 2014-07-04 | Overflow-type Rain Garden system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204206806U true CN204206806U (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420373705.3U Expired - Lifetime CN204206806U (en) | 2014-07-04 | 2014-07-04 | Overflow-type Rain Garden system |
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| CN (1) | CN204206806U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930396A (en) * | 2017-04-20 | 2017-07-07 | 苏州大学 | Sponge city modularization road rain water runoff treatment system and processing method |
| CN110984292A (en) * | 2019-11-29 | 2020-04-10 | 中国三冶集团有限公司 | Rainwater collection and secondary utilization system |
| CN112429906A (en) * | 2020-09-28 | 2021-03-02 | 江苏龙腾工程设计股份有限公司 | Special multistage purification type grass planting ditch for green sponge and construction method thereof |
-
2014
- 2014-07-04 CN CN201420373705.3U patent/CN204206806U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930396A (en) * | 2017-04-20 | 2017-07-07 | 苏州大学 | Sponge city modularization road rain water runoff treatment system and processing method |
| CN110984292A (en) * | 2019-11-29 | 2020-04-10 | 中国三冶集团有限公司 | Rainwater collection and secondary utilization system |
| CN112429906A (en) * | 2020-09-28 | 2021-03-02 | 江苏龙腾工程设计股份有限公司 | Special multistage purification type grass planting ditch for green sponge and construction method thereof |
| CN112429906B (en) * | 2020-09-28 | 2022-07-05 | 江苏龙腾工程设计股份有限公司 | Special multistage purification type grass planting ditch for green sponge and construction method thereof |
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