CN109809633A - A kind of biological delaying basin improving rainwater infiltration ability - Google Patents
A kind of biological delaying basin improving rainwater infiltration ability Download PDFInfo
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- CN109809633A CN109809633A CN201910103163.5A CN201910103163A CN109809633A CN 109809633 A CN109809633 A CN 109809633A CN 201910103163 A CN201910103163 A CN 201910103163A CN 109809633 A CN109809633 A CN 109809633A
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Abstract
The present invention provides a kind of biological delaying basins for improving rainwater infiltration ability, including infiltration area and storage area, area seep water including being detained tank main body and underground water supply pipe, it is detained in tank main body and is from top to bottom followed successively by planting soil layer, packing area and pebble support layer, underground water supply pipe is set in sub-surface, and it is connected to pebble support layer, underground water supply pipe is equipped with multiple through-holes, storage area includes reservoir bed, water storage well, communicating pipe and relief sewer, the bottom wall and side wall of water storage well are waterproof, cobble drainage blanket and sand filter are equipped in water storage well from the bottom to top, the bottom of water storage well with pebble support layer by being connected to communicating pipe, relief sewer is connected to water storage well, the present invention can efficiently improve rainwater infiltration ability and rainwater infiltration amount.
Description
Technical field
The present invention relates to rainwater treatment technical field more particularly to a kind of biological delaying basins for improving rainwater infiltration ability.
Background technique
The problems such as China faces shortage of water resources now, water security causes anxiety, water environment pollution, Ecology deteriorate, country mentions
" sponge city " this theory out.The biological delaying basin of one of technical measures as sponge city, can not only have
Control rainwater non-point pollution in effect ground can also cut down rainwash recharge of groundwater.
Rain flood refers to that the precipitation in certain territorial scope instantaneously gathers or flow through the flood that passes by of this range.Rain-flood resources
Change using being using as the rainwater of important water resources, the measure of application engineering and non-engineering disperses to implement, retain on the spot, makes it
Underground is seeped in time, recharge of groundwater, or gets up to recycle using this facility savings.
Low influence development stimulation of the biological delaying basin as a kind of efficient recharge of groundwater, since traditional structure is net in rainwater
There are limitations in terms of changing with rainwater infiltration.Rainwater causes the draining of lower layer's boulder bed fast, upper layer is filled out after the soil water reaches saturation
Slow problem is seeped under the bed of material, make rainwater not can efficient recharge of groundwater, overflow is caused, during most of pollutant is less
Later period rainwater is discharged into Storm Sewer Network, not only increases the water resource that discharge pressure more wastes a large amount of preciousnesses, and rain flood problem does not have
Preferably solved.
The largest source of city water resource is rainfall, and sponge urban facilities is by stagnant storage, lower infiltration, Urban Rain maximum limit
It stays in city to degree, Urban Storm Flood is switched to valuable water resource, in order to reach this purpose, traditional biological delaying basin
Drawback needs to solve.
Summary of the invention
In response to the deficiencies in the existing technology, the present invention provides it is a kind of improve rainwater infiltration ability biological delaying basin,
Improve rainwater infiltration ability and rainwater infiltration amount.
The present invention achieves the above technical objects by the following technical means.
A kind of biological delaying basin improving rainwater infiltration ability, including infiltration area and storage area；
The infiltration area includes being detained tank main body and underground water supply pipe, is from top to bottom followed successively by kind in the delay tank main body
It plants soil layer, packing area and pebble support layer, the underground water supply pipe to be set in sub-surface, and connects with the pebble support layer
Logical, the underground water supply pipe is equipped with multiple through-holes；
The storage area includes reservoir bed, water storage well, communicating pipe and relief sewer, and the reservoir bed is located at the delay
The top of tank main body, and be connected to the planting soil layer, the bottom wall and side wall of the water storage well are waterproof, in the water storage well
It is equipped with cobble drainage blanket and sand filter from the bottom to top, the bottom of the water storage well is connected by communicating pipe and the pebble support layer
Logical, the relief sewer is connected to the water storage well.
Preferably, permeable geotextiles are enclosed on the underground water supply pipe.
Preferably, it is equipped with the waterproof geotextiles of multilayer in the delay tank main body, the delay tank main body is divided into multilayer
Gallery, one end of the impermeable water conservancy project cloth are connect with the inner wall for being detained tank main body, and the other end is free end, so that multilayer institute
It states and forms snakelike infiltration access between gallery, the planting soil layer is located at most one layer of top surface gallery, the pebble support layer position
In most one layer of bottom surface gallery, intermediate several layers gallery is packing area, is filled respectively in each layer gallery in the packing area
There is different fillers, form different packing layers, each different packing layer is set in combination with practical earth's surface Runoff contaminants feature
Set different filler combinations.
Preferably, the waterproof geotechnique is furnished with four layers, so that the gallery being detained in tank main body is five layers, centre three
The layer gallery forms packing area, is followed successively by the first packing layer, the second packing layer and third from top to bottom in the packing area and fills out
The bed of material.
Preferably, high permeability filler is filled in first packing layer, fills aperture porosity in second packing layer
Filler, the third packing layer is interior to fill porosity filler.
Preferably, the filler in first packing layer is thick river sand and zeolite, and the quality of the zeolite is the thick river
The 20% of husky quality, the partial size of the zeolite are 5~10mm；Filler in second packing layer is thin river sand and fine coal
Ash, the quality of the flyash are the 5% of the quality of the thin river sand；Filler in the third packing layer is middle river sand and stone
Sand and sawdust, the quality of the quartz sand are the 20% of the quality of the middle river sand, and the quality of the sawdust is the middle river
The 5% of husky quality.
Preferably, the thickness of each layer gallery is equal in the packing area, is 150mm~200mm.
Preferably, the top of the water storage well is equipped with overflow port, the top of the top surface of the overflow port than the planting soil layer
Face is higher by 200mm, and the overflow port is equipped with the rain perforaled strainer for preventing sundries from flowing into, and the rain perforaled strainer is by cast iron or concrete
Material is made.
Preferably, the height of the sand filter is 50mm, the height of the cobble drainage blanket is 150mm.
Preferably, fine sand, middle sand and coarse sand are followed successively by the sand filter from top to bottom, is small in the cobble drainage blanket
Particle cobblestone.
Beneficial effects of the present invention:
1) present invention infiltration area and storage area can make biological delaying basin different piece play maximum effect, wherein seeping
It is configured lower water supply pipe in the sub-surface of the bottom in pool, rainwater can be made to become larger with soil contact product, under preferential infiltration
Layer soil, is slowed by the increase of moisture content, to improve rainwater infiltration amount, after soil saturation, rainwater infiltration slows,
Rainwater gradually accumulates, and from entering water storage well communicating pipe, while realizing rainwater infiltration and storage, does not reach overflow pipe position in rainfall
The rainwater of preceding accumulation can be infiltered by delaying down into underground, and therefore, the present invention can reach bigger than traditional biological delaying basin
Rainwater infiltration amount urban heat land effect is mitigated to recharge of groundwater, reducing the harm of rain flood has great meaning.
2) present invention is being detained setting multilayer gallery in tank main body, to form snakelike infiltration access, so as to so that rain
The hydraulic detention time of water increases, and percolation path increases, and makes pollutant and plant, and filler and microorganism have longer reaction and connect
The time is touched, the processing capacity of pollutant is improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram according to a kind of biological delaying basin of raising rainwater infiltration ability of the embodiment of the present invention.
Appended drawing reference:
1. overflow port；2. water storage well；3. sand filter；4. cobble drainage blanket；5. communicating pipe；6. relief sewer；7. kind of plant
Soil layer；8. the first packing layer；9. the second packing layer；10. third packing layer；11. pebble support layer；12. underground water supply pipe；13.
Sub-surface.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
The orientation or positional relationship of the instructions such as " thickness ", "upper", "lower", " axial direction ", " radial direction ", "vertical", "horizontal", "inner", "outside"
To be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or
It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as
Limitation of the present invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be with
Explicitly or implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or
Two or more, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
A kind of biology for improving rainwater infiltration ability according to an embodiment of the present invention is specifically described in conjunction with attached drawing first below
Delaying basin.
Referring to Fig. 1, a kind of biological delaying basin for improving rainwater infiltration ability according to an embodiment of the present invention, including infiltration
Area and storage area.
Specifically, infiltration area includes being detained tank main body and underground water supply pipe 12, is detained in tank main body and is from top to bottom followed successively by
Planting soil layer 7, packing area and pebble support layer 11, the Plants selection locality growth in planting soil layer 7 preferably and can adapt to
Lower temperature and the plant for having detergent power to pollutant.Underground water supply pipe 12 is set in sub-surface 13, and and cobble
Supporting layer 11 is connected to, and underground water supply pipe 12 is equipped with multiple through-holes, preferably, being enclosed with permeable geotechnique on underground water supply pipe 12
Cloth prevents soil and filler from entering and results in blockage.The setting of underground water supply pipe 12 makes rainwater and soil have bigger contact area,
Lower infiltration area is set to improve to increase seepage discharge.Underground water supply pipe 12 gos deep into soil to preferentially enter closer to underground simultaneously
The lower soil of water, makes it permeate the ground faster, the time that soil reaches saturated aqueous rate is reduced, under keeping rainwater faster
It seeps.
Storage area includes reservoir bed 15, water storage well 2, communicating pipe 5 and relief sewer 6, and reservoir bed 15 is located at delaying basin master
The top of body, and be connected to planting soil layer 7, the bottom wall and side wall of water storage well 2 are waterproof, are equipped with from the bottom to top in water storage well 2
Cobble drainage blanket 4 and sand filter 3, the bottom of water storage well 2 with pebble support layer 11 by being connected to communicating pipe 5, and communicating pipe 5 is using big
Cell size rain penetration pipe.Preferably, the top of water storage well 2 is equipped with overflow port 1, the top of the top surface of overflow port 1 than planting soil layer 7
Face is higher by 200mm, and delaying basin top is made to form 200mm reservoir bed 15.Relief sewer 6 is connected to water storage well 2, relief sewer
6 position is arranged according to local time dry spell, and the dry spell longer top that water storage well 2 is arranged in, the dry spell is shorter, and setting exists
The middle part of water storage well 2.Setting water storage well 2 can make rainwater while can be supplemented underground water after flowing into infiltration area's boulder bed
Soil and the rainwater storage that is detained will be had little time to penetrate into water storage well, penetrated into soil so that this part rainwater be made to delay.
The setting of infiltration area and storage area can make biological delaying basin different piece play maximum effect, wherein seeping water
It is configured lower water supply pipe in the sub-surface 13 of the bottom in area, rainwater can be made to become larger with soil contact product, under preferential infiltration
Layer soil, is slowed by the increase of moisture content, to improve rainwater infiltration amount, after soil saturation, rainwater infiltration slows,
Rainwater gradually accumulates, and from entering water storage well communicating pipe, while realizing rainwater infiltration and storage, does not reach overflow pipe position in rainfall
The rainwater of preceding accumulation can be infiltered by delaying down into underground, therefore, a kind of raising rainwater infiltration energy of the embodiment of the present invention
The biological delaying basin of power can reach the rainwater infiltration amount bigger than traditional biological delaying basin, to recharge of groundwater, mitigate Urban Thermal
Island effect, reducing the harm of rain flood has great meaning.
Preferably, the height of sand filter 3 is 50mm, the height of cobble drainage blanket 4 is 150mm, in sand filter 3 from up to
Under be followed successively by fine sand, middle sand and coarse sand, be little particle cobblestone in cobble drainage blanket 4.
Preferably, water storage well 2 is made of concrete structure, bottom is waterproof, and overflow port 1, which is equipped with, prevents sundries from flowing into
Rain perforaled strainer, rain perforaled strainer is made of cast iron or concrete material.
In order to improve delaying basin to the processing capacity of pollutant, multilayer is equipped with not in the delay tank main body in the present embodiment
Permeable geotextiles 14 will be detained tank main body and be divided into multilayer gallery, and one end of impermeable water conservancy project cloth 14 and the inner wall for being detained tank main body connect
It connects, the other end is free end, so that forming snakelike infiltration access between multilayer gallery, planting soil layer 7 is located at most one layer of top surface
Gallery, pebble support layer 11 are located at most one layer of bottom surface gallery, and intermediate several layers gallery is packing area, each layer gallery in packing area
Inside be separately filled with different fillers, form different packing layers, each packing layer with a thickness of 150mm~200mm, it is each not
Different filler combinations are arranged in combination with practical earth's surface Runoff contaminants feature in same packing layer.
Further, in this embodiment waterproof geotextiles 14 have four layers so that be detained tank main body in gallery be five
Layer, intermediate three layers of gallery form packing area, are followed successively by the first packing layer 8, the second packing layer 9 and third from top to bottom in packing area
Packing layer 10, wherein high permeability filler is filled in the first packing layer 8, and aperture porosity filler is filled in the second packing layer 9, the
Porosity filler is filled in three packing layers 10, the filler in the first packing layer 8 is thick river sand and zeolite, and the quality of zeolite is thick
The 20% of the quality of river sand, the partial size of zeolite are 5~10mm；Filler in second packing layer 9 is thin river sand and flyash, fine coal
The quality of ash is the 5% of the quality of thin river sand；Filler in third packing layer 10 is middle river sand and quartz sand and sawdust, quartz sand
Quality be middle river sand quality 20%, the quality of sawdust is the 5% of the quality of middle river sand.
A kind of biological delaying basin improving rainwater infiltration ability according to an embodiment of the present invention, have it is efficient addedly under
Outlet capacity has good rainwater purification ability simultaneously.Rainfall runoff be open etc. by grass planting ditch or kerbstone transfer facility enter it is stagnant
Stay pond.Rainfall runoff, which first has, seeps purification under planting soil layer 7, reach lower layer's filler by snakelike seepage flow access seepage flow, fill out first
Due to containing a large amount of dissolved oxygens in rainwater and since the porosity of the first packing layer 8 is big in the bed of material 8, oxygen, which enters, compares appearance
Easily, nitrogen occurs aminating reaction and nitration reaction and consumes a large amount of dissolved oxygens in rainwater, and organic nitrogen generates ammonia nitrogen, and ammonia nitrogen generates sub-
Nitrate nitrogen and nitrate nitrogen, since dissolved oxygen content tails off and flour filler can stop part of oxygen in the second packing layer 9
Into lower layer, third packing layer 10 and the second packing layer 9 is set to form anoxic and anaerobic environment, nitrate nitrogen is in 10 He of third packing layer
Second packing layer 9 occurs anti-nitration reaction generation nitrogen and is removed, and phosphorus and COD are due to each layer filling adsorption and microbial reaction
Also high-efficient purification is obtained.
After rainwater flows into pebble support layer 11, preferentially enter and penetrate into deep soil after recharge of ground water pipe 12, then with
Rainfall increase, rainwater infiltration amount becomes larger, and soil moisture content is gradually increased.Recharge of ground water pipe 12 can be such that rainwater connects with soil
Contacting surface product becomes larger, and preferentially penetrates into lower soil, is slowed by the increase of moisture content, to improve rainwater infiltration amount.Soil is full
It is slack-off with rear infiltration rate, so that draining is less than water inlet, rainwater gradually accumulates, and enters in water storage well 2 from communicating pipe 5, rainwater is simultaneously
Under blend storage, before rainfall does not reach 6 position of overflow pipe, the rainwater of accumulation can be infiltered by delaying down into underground.When
Amount of rainfall enters in water storage well 2 after reaching overflow port 1 more than when milliosmolarity, rainwater is gradually accumulated by reservoir bed 15 under delaying basin,
It is discharged finally by overflow pipe.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (10)
1. a kind of biological delaying basin for improving rainwater infiltration ability, which is characterized in that including infiltration area and storage area；
The infiltration area includes being detained tank main body and underground water supply pipe (12), is from top to bottom followed successively by kind in the delay tank main body
Soil layer (7), packing area and pebble support layer (11), the underground water supply pipe (12) is planted to be set in sub-surface (13), and with
Pebble support layer (11) connection, the underground water supply pipe (12) are equipped with multiple through-holes；
The storage area includes reservoir bed (15), water storage well (2), communicating pipe (5) and relief sewer (6), the reservoir bed
(15) it is located at the top for being detained tank main body, and is connected to the planting soil layer (7), the bottom wall of the water storage well (2) and side
Wall is waterproof, is equipped with cobble drainage blanket (4) and sand filter (3), the water storage well (2) in the water storage well (2) from the bottom to top
Bottom be connected to the pebble support layer (11) by communicating pipe (5), the relief sewer (6) and the water storage well (2)
Connection.
2. the biological delaying basin according to claim 1 for improving rainwater infiltration ability, which is characterized in that the underground moisturizing
Permeable geotextiles are enclosed on pipe (12).
3. the biological delaying basin according to claim 1 for improving rainwater infiltration ability, which is characterized in that the delaying basin master
It is equipped with the waterproof geotextiles of multilayer (14) in vivo, the delay tank main body is divided into multilayer gallery, the impermeable water conservancy project cloth (14)
One end with it is described be detained tank main body inner wall connect, the other end is free end, so that being formed between gallery described in multilayer snakelike
Infiltration access, the planting soil layer (7) is located at most one layer of top surface gallery, and the pebble support layer (11) is located at most one layer of bottom surface
Gallery, intermediate several layers gallery are packing area, are separately filled with different fillers in each layer gallery in the packing area,
Different packing layers is formed, different filler groups are arranged in combination with practical earth's surface Runoff contaminants feature in each different packing layer
It closes.
4. the biological delaying basin according to claim 3 for improving rainwater infiltration ability, which is characterized in that the impermeable water and soil
Work cloth (14) has four layers, so that the gallery being detained in tank main body is five layers, intermediate three layers of gallery forms packing area, institute
It states and is followed successively by the first packing layer (8), the second packing layer (9) and third packing layer (10) in packing area from top to bottom.
5. the biological delaying basin according to claim 4 for improving denitrogenation dephosphorizing ability, which is characterized in that first filler
High permeability filler is filled in layer (8), fills aperture porosity filler, the third packing layer in second packing layer (9)
(10) porosity filler is filled in.
6. the biological delaying basin according to claim 4 for improving denitrogenation dephosphorizing ability, which is characterized in that first filler
Filler in layer (8) is thick river sand and zeolite, and the quality of the zeolite is the 20% of the quality of the thick river sand, the zeolite
Partial size is 5~10mm；Filler in second packing layer (9) is thin river sand and flyash, and the quality of the flyash is institute
State the 5% of the quality of thin river sand；Filler in the third packing layer (10) is middle river sand and quartz sand and sawdust, the quartz
The quality of sand is the 20% of the quality of the middle river sand, and the quality of the sawdust is the 5% of the quality of the middle river sand.
7. the biological delaying basin according to claim 3 or 4 for improving denitrogenation dephosphorizing ability, which is characterized in that the filler
The thickness of each floor gallery is equal in area, is 150mm~200mm.
8. the biological delaying basin according to claim 1 for improving denitrogenation dephosphorizing ability, which is characterized in that the water storage well
(2) top is equipped with overflow port (1), and the top surface of the overflow port (1) is higher by 200mm than the top surface of the planting soil layer (7), institute
It states overflow port (1) and is equipped with the rain perforaled strainer for preventing sundries from flowing into, the rain perforaled strainer is made of cast iron or concrete material.
9. the biological delaying basin according to claim 1 for improving denitrogenation dephosphorizing ability, which is characterized in that the sand filter
(3) height is 50mm, the height of the cobble drainage blanket (4) is 150mm.
10. the biological delaying basin according to claim 9 for improving denitrogenation dephosphorizing ability, which is characterized in that the sand filter
(3) fine sand, middle sand and coarse sand are followed successively by from top to bottom, is little particle cobblestone in the cobble drainage blanket (4).
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| CN201910103163.5A CN109809633A (en) | 2019-02-01 | 2019-02-01 | A kind of biological delaying basin improving rainwater infiltration ability |
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| CN201910103163.5A CN109809633A (en) | 2019-02-01 | 2019-02-01 | A kind of biological delaying basin improving rainwater infiltration ability |
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| CN113754066A (en) * | 2021-09-28 | 2021-12-07 | 湖南工业大学 | Biological detention system for rainwater collection and treatment in building community |
| CN114086647A (en) * | 2021-11-22 | 2022-02-25 | 陕西古建园林建设集团有限公司 | A rainwater seepage well for urban flood control drainage |
| CN114086629A (en) * | 2021-11-22 | 2022-02-25 | 陕西古建园林建设集团有限公司 | Slope topography rainwater retaining structure |
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Application publication date: 20190528 |