CN207582619U - A kind of Rain Garden based on sponge city - Google Patents

A kind of Rain Garden based on sponge city Download PDF

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Publication number
CN207582619U
CN207582619U CN201721588909.9U CN201721588909U CN207582619U CN 207582619 U CN207582619 U CN 207582619U CN 201721588909 U CN201721588909 U CN 201721588909U CN 207582619 U CN207582619 U CN 207582619U
Authority
CN
China
Prior art keywords
layer
sponge city
rain garden
overflow well
foundation pit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201721588909.9U
Other languages
Chinese (zh)
Inventor
朱晓玥
杨茜
侯庆贺
黄启堂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian Agriculture and Forestry University
Original Assignee
Fujian Agriculture and Forestry University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujian Agriculture and Forestry University filed Critical Fujian Agriculture and Forestry University
Priority to CN201721588909.9U priority Critical patent/CN207582619U/en
Application granted granted Critical
Publication of CN207582619U publication Critical patent/CN207582619U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model is related to a kind of Rain Gardens based on sponge city, including the foundation pit being arranged between the pavement of both sides, overflow well is provided in the foundation pit, the lower end of the overflow well is provided with water outlet, the water outlet is connected through a connecting tube with municipal pipeline, and the outside of overflow well is disposed with aquifer, planting soil layer, coarse sands layer, filter layer, metalling and impervious barrier from top to bottom.The structure design of the utility model is reasonable, in heavy rain or rainy season, can cut down the run-off in sponge city, reduces instantaneous crest discharge, effectively avoids washing away the soil on planting soil layer.

Description

A kind of Rain Garden based on sponge city
Technical field:
The utility model is related to a kind of Rain Gardens based on sponge city.
Background technology:
The fast development in city, it is more and more large-scale to build, while human residential environment is improved, also bring with Municipal drainage and the safety problem that waterlogging is representative.Based on the more high buildings and large mansions of traditional urban construction, reinforced concrete construction quantity More, city hardening area is excessive, greenery area but very little;And urban ground hardening area is excessive, the rainwash of generation is difficult Under be seeped into soil, heavy showers or concentrate rainfall when, urban drainage pipe network carrying immense pressure, can not be in a short time by rainwater Drain, " seeing sea in city " phenomenon is caused to occur.Rainwater is quickly drained with pipe network, and more than 70% rainwater cannot be added utilization, Urban Water Shortage Problem of Cities is also difficult to be resolved.The water security problem increasingly aggravated in face of city, " sponge city " this new concept It is suggested, it is intended to solve to write in city and problem of water consumption, build green and healthy city good for habitation as primary goal.
Rain Garden is a kind of rain flood management measure, and the U.S. is the country for proposing this term concepts earliest.Ecology Sustainable use is the design principle of Rain Garden, using the purpose for efficiently using rainwater, saving water resource is designed as Rain Garden. Rainwater is saved by the measures such as natural green land and artificial construction wetland, is formed simultaneously unique City Garden landscape.Rainwater is spent Garden is the important practice for building sponge city, and Rain Garden with sponge urban construction is combined, can effectively solve urban waterlogging And water shortage problem, further promote the sound development of ecocity.However existing Rain Garden is encountering rainy season or heavy rain When, since surface runoff amount and instantaneous crest discharge are big, the soil on planting soil layer can be not only washed away, leads to water and soil stream It loses, and waste water resource.
Utility model content:
The purpose of this utility model is that being directed to more than shortcoming, a kind of Rain Garden based on sponge city is provided, It is reasonable in design, run-off can be effectively cut down, reduces instantaneous crest discharge.
To achieve these goals, the technical solution adopted in the utility model is:A kind of rainwater flower based on sponge city Garden including the foundation pit being arranged between the pavement of both sides, is provided with overflow well in the foundation pit, the lower end of the overflow well is set Water outlet is equipped with, the water outlet is connected through a connecting tube with municipal pipeline, and the outside of overflow well is disposed with from top to bottom Aquifer, planting soil layer, coarse sands layer, filter layer, metalling and impervious barrier.
Further, the thickness of the planting soil layer be 40 centimetres, planting soil layer by sand, compost, loamy soil with And clay mixes, wherein the content of sand is 60%~85%, and the content of compost is 5%~10%, and the content of clay is no more than 5%。
Further, the thickness of the coarse sands layer is 10 centimetres, and the grain size of coarse sands layer medium coarse sand is less than 5 millimeters.
Further, the thickness of the metalling is 30 centimetres, and the grain size of metalling medium stone is 5~20 millimeters.
Further, the filter layer is filtering geotextiles.
Further, the impervious barrier is anti-seepage geotextile.
Further, the both sides of the foundation pit are provided with vegetation buffer strip.
Compared with prior art, the utility model has the following effects that:The structure design of the utility model is reasonable, in heavy rain or During rainy season, the run-off in sponge city can be cut down, reduces instantaneous crest discharge, effectively avoids washing away the mud on planting soil layer Soil.
Description of the drawings:
Fig. 1 is the organigram of the utility model embodiment.
In figure:
1- pavements;2- foundation pits;3- overflow wells;4- connecting tubes;5- aquifers;6- planting soil layers;7- coarse sands layers;8- Filter layer;9- metallings;10- impervious barriers.
Specific embodiment:
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, a kind of Rain Garden based on sponge city of the utility model, including being arranged on both sides pavement Foundation pit 2 between 1 is provided with overflow well 3 in the foundation pit 2, and the lower end of the overflow well 3 is provided with water outlet, the water outlet Mouth is connected through a connecting tube 4 with municipal pipeline, by connecting tube by the rainwater-collecting in overflow well in municipal pipeline or water process Center by rainwater-collecting or recycles;The outside of overflow well 3 is disposed with aquifer 5, planting soil from top to bottom Layer 6, coarse sands layer 7, filter layer 8, metalling 9 and impervious barrier 10.
In the present embodiment, the thickness of the planting soil layer 6 is 40 centimetres, and planting soil layer 6 is by sand, compost, loamy texture Soil and clay mix, and wherein the content of sand is 60%~85%, and the content of compost is 5%~10%, and the content of clay is not More than 5%.
In the present embodiment, the thickness of the coarse sands layer 7 is 10 centimetres, and the grain size of 7 medium coarse sand of coarse sands layer is less than 5 millimeters.
In the present embodiment, the thickness of the metalling 9 is 30 centimetres, and the grain size of 9 medium stone of metalling is 5~20 millimeters.
In the present embodiment, the filter layer 8 is filtering geotextiles, to prevent the particulate matters such as soil from entering metalling;It crosses Filter earthwork cloth primarily serves the function of tentatively filtering, and surface is smooth, wearability is good, strength is high, and fabric air-permeability performance is good, leak Property is fast, easy to clean.
In the present embodiment, the impervious barrier 10 is anti-seepage geotextile, to ensure that infiltration does not influence neighboring buildings safety;Antiseepage Geotextiles, with the non-woven fabric compounded seepage by geo-textile material formed, there is good antiseepage to make using plastic film as antiseepage base material With conducive to the moisture that rainwater is penetrated into soil is collected, and water is drained and collected in water-permeable pipe.
In the present embodiment, the both sides of the foundation pit 2 are provided with vegetation buffer strip.
The above is only the preferred embodiment of the present invention, it is all done according to present utility model application the scope of the claims it is equal Deng variation and modification, it should all belong to the covering scope of the utility model.

Claims (7)

1. a kind of Rain Garden based on sponge city, including the foundation pit being arranged between the pavement of both sides, it is characterised in that: Overflow well is provided in the foundation pit, the lower end of the overflow well is provided with water outlet, and the water outlet is through a connecting tube and city Political affairs pipeline is connected, and the outside of overflow well is disposed with aquifer, planting soil layer, coarse sands layer, filter layer, rubble from top to bottom Layer and impervious barrier.
2. a kind of Rain Garden based on sponge city according to claim 1, it is characterised in that:The planting soil layer Thickness for 40 centimetres, planting soil layer is mixed by sand, compost, loamy soil and clay, and the content of wherein sand is 60%~85%, the content of compost is 5%~10%, and the content of clay is no more than 5%.
3. a kind of Rain Garden based on sponge city according to claim 1, it is characterised in that:The thickness of the coarse sands layer It is 10 centimetres to spend, and the grain size of coarse sands layer medium coarse sand is less than 5 millimeters.
4. a kind of Rain Garden based on sponge city according to claim 1, it is characterised in that:The thickness of the metalling It is 30 centimetres to spend, and the grain size of metalling medium stone is 5~20 millimeters.
5. a kind of Rain Garden based on sponge city according to claim 1, it is characterised in that:The filter layer was Filter geotextiles.
6. a kind of Rain Garden based on sponge city according to claim 1, it is characterised in that:The impervious barrier is anti- Ooze geotextiles.
7. a kind of Rain Garden based on sponge city according to claim 1, it is characterised in that:The both sides of the foundation pit It is provided with vegetation buffer strip.
CN201721588909.9U 2017-11-24 2017-11-24 A kind of Rain Garden based on sponge city Expired - Fee Related CN207582619U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721588909.9U CN207582619U (en) 2017-11-24 2017-11-24 A kind of Rain Garden based on sponge city

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721588909.9U CN207582619U (en) 2017-11-24 2017-11-24 A kind of Rain Garden based on sponge city

Publications (1)

Publication Number Publication Date
CN207582619U true CN207582619U (en) 2018-07-06

Family

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Family Applications (1)

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CN201721588909.9U Expired - Fee Related CN207582619U (en) 2017-11-24 2017-11-24 A kind of Rain Garden based on sponge city

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109469181A (en) * 2018-11-08 2019-03-15 江苏永通市政园林建设有限公司 A kind of sponge urban rainwater collection system
CN109811861A (en) * 2019-01-15 2019-05-28 南昌航空大学 A kind of Rain Garden suitable for NH_3-N treating

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109469181A (en) * 2018-11-08 2019-03-15 江苏永通市政园林建设有限公司 A kind of sponge urban rainwater collection system
CN109811861A (en) * 2019-01-15 2019-05-28 南昌航空大学 A kind of Rain Garden suitable for NH_3-N treating

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180706

Termination date: 20181124

CF01 Termination of patent right due to non-payment of annual fee