CN203795576U - Landscape depression for collecting stormwater runoff - Google Patents

Landscape depression for collecting stormwater runoff Download PDF

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Publication number
CN203795576U
CN203795576U CN201420149047.XU CN201420149047U CN203795576U CN 203795576 U CN203795576 U CN 203795576U CN 201420149047 U CN201420149047 U CN 201420149047U CN 203795576 U CN203795576 U CN 203795576U
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CN
China
Prior art keywords
depression
layer
water
region
rainfall runoff
Prior art date
Application number
CN201420149047.XU
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Chinese (zh)
Inventor
茹雯美
秦启宪
李雯
张希波
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上海市园林设计院有限公司
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Priority to CN201420149047.XU priority Critical patent/CN203795576U/en
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Publication of CN203795576U publication Critical patent/CN203795576U/en

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108Rainwater harvesting

Abstract

The utility model discloses a landscape depression for collecting stormwater runoff. The landscape depression comprises a water collection area arranged on an undisturbed soil layer, a landscape depression area is arranged in the middle of the water collection area and comprises a planting medium layer used for planting water-resistant plants, a sand layer, a geotextile layer, a gravel layer and a water permeable pipe used for being externally connected with water storage or water consuming facilities, the planting media layer, the sand layer and the geotextile layer are arranged sequentially from top to bottom and form a recessed arc-shaped structure, the gravel layer is arranged below the bottom of the geotextile layer, the water permeable pipe is arranged in the gravel layer, the upper surfaces of the areas, located on two sides of the landscape depression area, in the water collection area are higher than the upper surface of the landscape depression area, and the water permeable pipe is arranged downwardly and obliquely. The landscape depression can collect rainwater, and the rainwater can be reutilized after being subjected to permeation treatment to be improved in water quality; through permeation, rechargeable underground water restores the urban ecological environment; through on-site collection of permeated rainwater, rapid formation of urban peak discharge is delayed, and urban flood can be inhibited.

Description

Collect the view depression of rainfall runoff
Technical field
The utility model relates to field of civil engineering, relates in particular to a kind of view depression of collecting rainfall runoff.
Background technology
In greenery patches, often there will be up concave type greenery patches, this greenery patches can cause plant undergrowth herein when ponding.And long-term ponding and impeded drainage also can affect landscape effect.Run into this kind of situation, common processing method is to consider to lay blind pipe or drainage trenching at landform lowest part.Two kinds of above methods be all the rainfall runoff herein collecting is directly entered in municipal pipeline or periphery river, lake in, rainfall runoff is not recycled, and it is all not good with laying blind pipe landscape effect to lay gutter.
Therefore, how to provide a kind of and can make full use of rainfall runoff and the good view depression structure of landscape effect is those skilled in the art's technical problems urgently to be resolved hurrily.
Utility model content
The utility model can solve up concave type greenery patches ponding problem, and its object is to provide a kind of view depression of rainfall runoff being collected to recycling and the good collection rainfall runoff of landscape effect.
To achieve the above object, the utility model adopts following technical scheme:
A kind of view depression of collecting rainfall runoff, comprise the watershed being arranged on original state soil layer, the middle part of described watershed is provided with region, view depression, region, described view depression comprises plants for planting the planting medium layer of water-fast wet plant, layer of sand, geotechnique's layer of cloth, layer of gravel and for external water storage or with the water-permeable pipe of drainage facility, described planting medium layer, layer of sand and geotechnological layer of cloth set gradually and form a up concave type arcuate structure from top to bottom, described layer of gravel is arranged at the below, bottom of described geotechnological layer of cloth, described water-permeable pipe is arranged in described layer of gravel, in described watershed, be positioned at the upper surface in region of both sides, region, described view depression higher than the upper surface in region, described view depression, the downward-sloping setting of described water-permeable pipe.
Preferably, in the view depression of above-mentioned collection rainfall runoff, the lower termination of described water-permeable pipe is catchmented a little or river course or drainage system or pond.
Preferably, in the view depression of above-mentioned collection rainfall runoff, the gradient of described water-permeable pipe is 3 ‰-5 ‰, and transmission coefficient is more than or equal to 1x10 -4m/s.
Preferably, in the view depression of above-mentioned collection rainfall runoff, the upper surface of the planting medium layer in region, described view depression is respectively 3 ‰-5 ‰ from the gradient at two side direction centers.
Preferably, in the view depression of above-mentioned collection rainfall runoff, described planting medium layer is plantation soil layer.
Preferably, in the view depression of above-mentioned collection rainfall runoff, the region that is positioned at both sides, region, described view depression in described watershed is greenery patches or hard place.
Preferably, in the view depression of above-mentioned collection rainfall runoff, described hard place is road structure.
Preferably, in the view depression of above-mentioned collection rainfall runoff, described water storage or with drainage facility for catchmenting a little or river course or drainage system or pond.
Preferably, in the view depression of above-mentioned collection rainfall runoff, described geotechnological layer of cloth is nonweaven geotextile, and transmission coefficient is more than or equal to 1x10 -4m/s, mass area ratio is 100-300g/m 2.
Preferably, in the view depression of above-mentioned collection rainfall runoff, the transmission coefficient of described original state soil layer is more than or equal to 1x10 -5m/s.
Preferably, in the view depression of above-mentioned collection rainfall runoff, the particle diameter of the gravel of described layer of gravel is 5-10mm.
The view depression of the collection rainfall runoff that the utility model provides, comprise the watershed being arranged on original state soil layer, the middle part of described watershed is provided with region, view depression, region, described view depression comprises plants for planting the planting medium layer of water-fast wet plant, layer of sand, geotechnique's layer of cloth, layer of gravel and for external water storage or with the water-permeable pipe of drainage facility, described planting medium layer, layer of sand and geotechnological layer of cloth set gradually and form a up concave type arcuate structure from top to bottom, described layer of gravel is arranged at the below, bottom of described geotechnological layer of cloth, described water-permeable pipe is arranged in described layer of gravel, in described watershed, be positioned at the upper surface in region of both sides, region, described view depression higher than the upper surface in region, described view depression, therefore, the collected rainfall runoff in region that is positioned at both sides, region, described view depression in described watershed can be flowed to region, view depression, it can collect rainwater on the one hand, rainwater is processed and is improved after water quality through infiltration, can re-use, on the other hand, by infiltration, can recharge underground water urban ecological environment is repaired, again on the one hand, by collecting on the spot infiltration rainwater, delay the rapid formation of city peak flood flow, can suppress city flood.
Accompanying drawing explanation
The view depression of collection rainfall runoff of the present utility model is provided by following embodiment and accompanying drawing.
Fig. 1 is the structure sectional view in view depression of the collection rainfall runoff of the utility model one embodiment;
Fig. 2 is the floor map in view depression of the collection rainfall runoff of the utility model one embodiment;
In figure, in 1-original state soil layer, 2-watershed, region, 21-view depression, 211-planting medium layer, 212-layer of sand, 213-geotechnique layer of cloth, 214-layer of gravel, 215-water-permeable pipe, 216-is water-fast wet plant, 22-watershed, be positioned at region, other regions of 3-of both sides, region, described view depression.
The specific embodiment
Below the view depression to collection rainfall runoff of the present utility model is described in further detail.
Below with reference to accompanying drawings the utility model is described in more detail, has wherein represented preferred embodiment of the present utility model, should be appreciated that those skilled in the art can revise the utility model described here and still realize the beneficial effects of the utility model.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as to restriction of the present utility model.
For clear, whole features of practical embodiments are not described.They in the following description, are not described in detail known function and structure, because can make the utility model chaotic due to unnecessary details.Will be understood that in the exploitation of any practical embodiments, must make a large amount of implementation details to realize developer's specific objective, for example, according to the restriction of relevant system or relevant business, by an embodiment, change into another embodiment.In addition, will be understood that this development may be complicated and time-consuming, but be only routine work to those skilled in the art.
For the purpose of this utility model, feature are become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present utility model is further described.It should be noted that, accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the object of aid illustration the utility model embodiment lucidly.
Refer to Fig. 1 to 2, the present embodiment provides a kind of view depression of collecting rainfall runoff, comprise the watershed 2 being arranged on original state soil layer 1, the middle part of described watershed 2 is provided with region, view depression 21, region, described view depression 21 comprises plants for planting the planting medium layer 211 of water-fast wet plant 216, layer of sand 212, geotechnique's layer of cloth 213, layer of gravel 214 and for external water storage or with the water-permeable pipe 215 of drainage facility, described planting medium layer 211, layer of sand 212 and geotechnological layer of cloth 213 set gradually and form a up concave type arcuate structure from top to bottom, described layer of gravel 214 is arranged at the below, bottom of described geotechnological layer of cloth 213, described water-permeable pipe 215 is arranged in described layer of gravel 214, in described watershed 2, be positioned at the upper surface in region of 21 both sides, region, described view depression higher than the upper surface in region, described view depression 21, the downward-sloping setting of described water-permeable pipe 215.Because the upper surface in region 22 that is positioned at 21 both sides, region, described view depression in described watershed 2 is higher than the upper surface in region, described view depression 21; therefore; the collected rainfall runoff in region 22 that is positioned at 21 both sides, region, described view depression in described watershed 2 can be flowed to region, view depression 21; it can collect rainwater on the one hand; rainwater is processed and is improved after water quality through infiltration, can re-use; On the other hand, by infiltration, can recharge underground water urban ecological environment is repaired; Again on the one hand, by collecting on the spot infiltration rainwater, delay the rapid formation of city peak flood flow, can suppress city flood.。
Preferably, in the view depression of above-mentioned collection rainfall runoff, described water storage or with drainage facility for catchmenting a little or river course or drainage system or pond.Utilization is catchmented a little or river course or drainage system or pond, and the rainfall runoff that can collect in water-permeable pipe 215 supplies to utilize.
Preferably, in the view depression of above-mentioned collection rainfall runoff, the gradient of described water-permeable pipe 215 is 3 ‰-5 ‰.The water-permeable pipe 215 of above-mentioned gradient scope, had both been conducive to the laying of water-permeable pipe 215, was conducive to again discharge the rainfall runoff in water-permeable pipe 215.
Preferably, in the view depression of above-mentioned collection rainfall runoff, the upper surface of the planting medium layer 211 in region, described view depression 21 is respectively 3 ‰-5 ‰ transmission coefficients from the gradient at two side direction centers and is more than or equal to 1x10 -4m/s.So arrange, be both conducive to the plantation of water-fast wet plant 216, be conducive to again the performance of water storage effect.
In the present embodiment, described planting medium layer 211 is plantation soil layer.
Preferably, in the view depression of above-mentioned collection rainfall runoff, in described watershed 2, be positioned at 22Wei greenery patches, region or the hard place of 21 both sides, region, described view depression.Can as required greenery patches or hard place be arranged to in the region 22 that is positioned at 21 both sides, region, described view depression in described watershed 2.Greenery patches can utilize original state soil layer 1, and the soil layer that one deck suitable growth plant also can be set forms described greenery patches in this original state soil layer 1.Described hard place can be the road structure for walk.
Preferably, in the view depression of above-mentioned collection rainfall runoff, described geotechnological layer of cloth 213 is nonweaven geotextile, and transmission coefficient is more than or equal to 1x10 -4m/s, mass area ratio is 100-300g/m 2.The geotechnological layer of cloth 213 that said structure is set is in order to filter earth.
Preferably, in the view depression of above-mentioned collection rainfall runoff, the transmission coefficient of described original state soil layer 1 is more than or equal to 1x10 -5m/s.Adopt the original state soil layer 1 of above-mentioned coefficient of permeability, on the one hand, can allow water infiltrate in the soil of periphery, recharge underground water urban ecological environment is repaired.On the other hand, also can will can not be penetrated in time the water in Soil Surrounding, collect and water correction processing, be beneficial to re-use.
Preferably, in the view depression of above-mentioned collection rainfall runoff, the particle diameter of the gravel of described layer of gravel 214 is 5-10mm.It is in order further to filter earth, to allow clean water penetrate in water-permeable pipe that layer of gravel 214 is set.The gravel of above-mentioned particle size range, the earth of can better coming.
In addition, the region that is positioned at described watershed 2 outsides is other regions 3, can arrange as required and be greenery patches or hard place.
In sum, the view depression of the collection rainfall runoff that the utility model provides, comprise the watershed being arranged on original state soil layer, the middle part of described watershed is provided with region, view depression, region, described view depression comprises plants for planting the planting medium layer of water-fast wet plant, layer of sand, geotechnique's layer of cloth, layer of gravel and for external water storage or with the water-permeable pipe of drainage facility, described planting medium layer, layer of sand and geotechnological layer of cloth set gradually and form a up concave type arcuate structure from top to bottom, described layer of gravel is arranged at the below, bottom of described geotechnological layer of cloth, described water-permeable pipe is arranged in described layer of gravel, in described watershed, be positioned at the upper surface in region of both sides, region, described view depression higher than the upper surface in region, described view depression, therefore, the collected rainfall runoff in region that is positioned at both sides, region, described view depression in described watershed can be flowed to region, view depression, it can collect rainwater on the one hand, rainwater is processed and is improved after water quality through infiltration, can re-use, on the other hand, by infiltration, can recharge underground water urban ecological environment is repaired, again on the one hand, by collecting on the spot infiltration rainwater, delay the rapid formation of city peak flood flow, can suppress city flood.

Claims (10)

1. a view depression of collecting rainfall runoff, it is characterized in that, comprise the watershed being arranged on original state soil layer, the middle part of described watershed is provided with region, view depression, region, described view depression comprises for planting the planting medium layer of water-fast wet plant, layer of sand, geotechnique's layer of cloth, layer of gravel and for external water storage or with the water-permeable pipe of drainage facility, described planting medium layer, layer of sand and geotechnological layer of cloth set gradually and form a up concave type arcuate structure from top to bottom, described layer of gravel is arranged at the below, bottom of described geotechnological layer of cloth, described water-permeable pipe is arranged in described layer of gravel, in described watershed, be positioned at the upper surface in region of both sides, region, described view depression higher than the upper surface in region, described view depression, the downward-sloping setting of described water-permeable pipe.
2. the view depression of collection rainfall runoff according to claim 1, is characterized in that, the gradient of described water-permeable pipe is 3 ‰-5 ‰, and transmission coefficient is more than or equal to 1x10 -4m/s.
3. the view depression of collection rainfall runoff according to claim 1, is characterized in that, the upper surface of the planting medium layer in region, described view depression is respectively 3 ‰-5 ‰ from the gradient at two side direction centers.
4. the view depression of collection rainfall runoff according to claim 1, is characterized in that, described planting medium layer is plantation soil layer.
5. the view depression of collection rainfall runoff according to claim 1, is characterized in that, the region that is positioned at both sides, region, described view depression in described watershed is greenery patches or hard place.
6. the view depression of collection rainfall runoff according to claim 5, is characterized in that, described hard place is road structure.
7. the view depression of collection rainfall runoff according to claim 1, is characterized in that, described water storage or with drainage facility for catchmenting a little or river course or drainage system or pond.
8. the view depression of collection rainfall runoff according to claim 1, is characterized in that, described geotechnological layer of cloth is nonweaven geotextile, and transmission coefficient is more than or equal to 1x10 -4m/s, mass area ratio is 100-300g/m 2.
9. the view depression of collection rainfall runoff according to claim 1, is characterized in that, the transmission coefficient of described original state soil layer is more than or equal to 1x10 -5m/s.
10. the view depression of collection rainfall runoff according to claim 1, is characterized in that, the particle diameter of the gravel of described layer of gravel is 5-10mm.
CN201420149047.XU 2014-03-28 2014-03-28 Landscape depression for collecting stormwater runoff CN203795576U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104863083A (en) * 2015-06-11 2015-08-26 江西师范大学 Gardening intensive water storage and drainage method
CN104982249A (en) * 2015-06-11 2015-10-21 北京仁创科技集团有限公司 Rainwater garden used for green belt in the middle of road
CN105256697A (en) * 2015-11-10 2016-01-20 上海勘测设计研究院有限公司 Rainwater ecological regulation and storage system of artificial grass playground
CN105735451A (en) * 2016-03-04 2016-07-06 浙江德安科技股份有限公司 Rainwater collection and treatment system
CN107021588A (en) * 2017-06-20 2017-08-08 湖南文理学院 A kind of sponge urban construction osmos tube
WO2018095215A1 (en) * 2016-11-23 2018-05-31 环境保护部南京环境科学研究所 Spiral valley green space feature capable of reducing pollutants in runoff
CN109006370A (en) * 2018-06-27 2018-12-18 诚邦生态环境股份有限公司 Sponge-type green space system and its plants configuration method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104863083A (en) * 2015-06-11 2015-08-26 江西师范大学 Gardening intensive water storage and drainage method
CN104982249A (en) * 2015-06-11 2015-10-21 北京仁创科技集团有限公司 Rainwater garden used for green belt in the middle of road
CN105256697A (en) * 2015-11-10 2016-01-20 上海勘测设计研究院有限公司 Rainwater ecological regulation and storage system of artificial grass playground
CN105735451A (en) * 2016-03-04 2016-07-06 浙江德安科技股份有限公司 Rainwater collection and treatment system
WO2018095215A1 (en) * 2016-11-23 2018-05-31 环境保护部南京环境科学研究所 Spiral valley green space feature capable of reducing pollutants in runoff
CN107021588A (en) * 2017-06-20 2017-08-08 湖南文理学院 A kind of sponge urban construction osmos tube
CN109006370A (en) * 2018-06-27 2018-12-18 诚邦生态环境股份有限公司 Sponge-type green space system and its plants configuration method

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