CN106013391B - A kind of hierarchical composite formula sinking greenery patches and its application based on artificial composite soil - Google Patents
A kind of hierarchical composite formula sinking greenery patches and its application based on artificial composite soil Download PDFInfo
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- CN106013391B CN106013391B CN201610570814.8A CN201610570814A CN106013391B CN 106013391 B CN106013391 B CN 106013391B CN 201610570814 A CN201610570814 A CN 201610570814A CN 106013391 B CN106013391 B CN 106013391B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
Abstract
The hierarchical composite formula sinking greenery patches and its application that the invention discloses a kind of based on artificial composite soil, including longitudinally disposed charge for remittance module, overflow module, water conservation module, transitional module and water storage module.Compared with prior art, the invention has the following advantages that (1) hierarchical composite formula sinking greenery patches of the present invention by be arranged compound longitudinal layer spread structure effectively absorb precipitation, reduce rainwash, delay peak it is current between, increase soil water infiltration amount and reservoir storage, raising water utilization rate；(2) present invention application have high-hydroscopicity can composite soil, reach that absorption speed is fast, moisture-holding capacity is big, reduce the accumulation of road surface excess water, enhancing Urban Hydrologic circulation；(3) it is wide to be laid with material source for layering of the present invention, and using universal, construction technology is simple, easy to spread；(4) hierarchical composite formula sinking greenery patches of the present invention changes traditional upwards-raised greenbelt, by landscape design in conjunction with water storage for preventing flood, reduces municipal administration greening and uses water.
Description
Technical field
The invention belongs to urban waterlogging prevention and treatments and rainwater management to utilize field, be related to sunk type greenery patches, more particularly to a kind of
Hierarchical composite formula sinking greenery patches and its application based on artificial composite soil.
Background technique
The greenbelt on city road side is upwards-raised greenery patches at present, is unfavorable for rainwater catchment system and flood control.In addition, northern
Square arid and semi-arid module, how flooded rainy season is, drought period water shortage, and traditional concave herbaceous field can not be provided for a long term plant growth in dry season
Required moisture.
There are narrow sense and broad sense in sunk type greenery patches (Sunken Greenbelt), and the sunk type greenery patches of narrow sense is also known as low
Gesture greenery patches, concave herbaceous field, typical structure are greenery patches elevation lower than 5~25cm of surrounding hardened ground elevation or so, and rainwater overflows
Head piece is located in greenery patches or greenery patches and hardened ground intersection, and inlet for stom water elevation is higher than greenery patches elevation and high lower than hardened ground
Journey；The sunk type greenery patches of broad sense further includes that depression, Rain Garden, rainpool, rainwater are wet other than the sunk type greenery patches of narrow sense
Ground, the multi-functional ecologic rainwaters facility such as regulate and store.
Sunk type greenery patches can collect around hardening earth's surface generate rainfall runoff, using vegetation, soil, microorganism work
With, retain and purify small flow rainfall runoff, more than greenery patches store seep capacity rainwater be discharged into Storm Sewer Network through inlet for stom water.Sunk type
Greenery patches can not only play the role of cutting down run-off, mitigate Urban Flood Waterlogging, but also the rainwater of lower infiltration can play increase
Soil water content is to reduce the effect of green land irrigation water consumption and recharge of groundwater stock number.Meanwhile runoff carrying
Nutriment needed for the pollutants such as nitrogen, phosphorus can be changed into vegetation promotes the growth of plant.
Sunk type greenery patches is the important content of " sponge city " construction, but since experiment is at high cost, time-consuming, difficulty for it
The factors such as big, less for the experimental study of " cavernous body ", numerous research and analyse is confined to theoretical calculation, with practical gap compared with
Greatly.The factors pair such as return period, catchment area, recessed depth are focused primarily upon for the research of sunk type greenery patches application effect at present
In the influence for retaining effect, the vertical layered for having ignored sunk type greenery patches is laid with to raising rainwater resources utilization rate, reduces earth's surface
The influence of runoff.
Summary of the invention
The technical issues of solution: in order to overcome the defects of the prior art, precipitation can effectively be absorbed by obtaining one kind, be reduced
Rainwash between delay peak is current, increases soil water infiltration amount and reservoir storage, improves water utilization rate, while inhaling by height
Water-base resin quickly absorbs a large amount of rainwater, slowly releases the characteristic of water, and rainwater resource time distribution of regulating and storing is uneven, when alleviating water shortage
Phase plant needs water, and the present invention sufficiently excavates the longitudinal space in sunk type greenery patches on the basis of traditional sunk type greenery patches, using height
Compound longitudinal layer paving structure is arranged in water-absorbing resins, provides under a kind of hierarchical composite formula based on artificial composite soil
Heavy greenery patches and its application.
Technical solution:
A kind of hierarchical composite formula sinking greenery patches based on artificial composite soil, including longitudinally disposed charge for remittance module, overflow
Module, water conservation module, transitional module and water storage module；The charge for remittance module is set to around greenery patches, and surrounds overflow module, the two
Intersection is equipped with buffer area, and kind has vegetation in it；Overflow pipe is buried in the overflow module, the overflow port of overflow pipe is set to
In the middle part of overflow module；The water conservation module is located at the lower part of overflow module, wherein is natural soil layer, water conservation in overflow module
It is the composite soil layer for being mixed with super absorbent resin in module；The transitional module is equipped with coarse sands layer and geotextiles from top to bottom
Layer；The water storage module is filled by small particle rubble and big Stone.
Preferably, the overflow port is higher than 0.05~0.1m of greenery patches elevation, lower than gathering ground around greenery patches.
Preferably, the composite soil layer is uniformly mixed by super absorbent resin and natural soil according to 1:1000,
Laying depth is 0.15~0.20m.
Preferably, the fineness modulus of the coarse sands layer is 3.7~3.1, and partial size is 0.5mm~2mm, laying depth 0.05
~0.1m.
Preferably, the geotextile layer laying depth is 0.02~0.05m.
Preferably, the partial size of small Stone is 1cm~3cm in water storage module, the partial size of big Stone be 3cm~
7cm.The above-mentioned hierarchical composite formula sinking greenery patches based on super absorbent resin is in road green belt, greenbelt in little residential region, Glassed swale etc.
Small-sized greenery patches purification retains initial rainwater, cuts down magnanimity, the application in extension delivery period drought period.
Preferably, the rainfall intensity of the rainwater is set as according to 10 years one chance precipitation standards of Nanjing precipitation and experiment condition
1.23mm/min, rainfall duration 60min；Greenery area: catchment area=1:4.
The utility model has the advantages that (1) hierarchical composite formula sinking greenery patches of the present invention based on artificial composite soil is multiple by setting
Mould assembly longitudinal layer paving structure effectively absorb precipitation, reduce rainwash, delay peak it is current between, increase soil water infiltration amount and store
Water improves water utilization rate；(2) from soil texture, the single recessed depth of change in traditional sunk type greenery patches is broken through
Viewpoint, using the composite soil of the material with high-hydroscopicity energy, the composite soil absorption speed is fast, moisture-holding capacity is big, mitigates
The accumulation of road surface excess water, enhancing Urban Hydrologic circulation；(3) the hierarchical composite formula of the present invention based on artificial composite soil is sunk green
The more traditional concave herbaceous field in ground is reduced, and is reduced the requirement of flooding property resistance to for concave herbaceous field vegetation, is improved greenery patches
Applicability；(4) it is wide to be laid with material source for layering of the present invention, and using universal, construction technology is simple, easy to spread；
(5) hierarchical composite formula sinking greenery patches of the present invention changes traditional upwards-raised greenbelt, by landscape design in conjunction with water storage for preventing flood,
It reduces municipal administration greening and uses water.
Detailed description of the invention
Fig. 1 is hierarchical composite formula sinking greenery patches top view；
Fig. 2 is hierarchical composite formula sinking greenery patches structural schematic diagram；
Wherein, I is charge for remittance module, and II is overflow module, and III is water conservation module, and IV is transitional module, and V is water storage module.
1 is overflow port, and 2 be buffer area, and 3 be natural soil layer, and 4 be composite soil layer, and 5 be coarse sands layer, and 6 be geotextile layer, and 7 be granule
Diameter rubble, 8 be big Stone, and 9 be overflow pipe.
Specific embodiment
Following embodiment further illustrates the contents of the present invention, but should not be construed as limiting the invention.Without departing substantially from
In the case where spirit of that invention and essence, to modification made by the method for the present invention, step or condition and replaces, belong to the present invention
Range.Unless otherwise specified, the conventional means that technological means used in embodiment is well known to those skilled in the art.
Embodiment 1
As shown in Fig. 2, a kind of hierarchical composite formula sinking greenery patches based on artificial composite soil, comprising: longitudinally disposed remittance
Water module I, overflow module II, water conservation module III, transitional module IV and water storage module V.The charge for remittance module I is water catchment area,
For the practical corresponding catchment area in sinking greenery patches；The medium of the overflow module II is natural soil, and depth 10cm, surface is set
There is overflow port 1.The overflow port 1 is higher than greenery patches surface 6cm, lower than gathering ground around sunk type greenery patches.
The nozzle of overflow pipe is located at II middle part of overflow module, is higher than sunk type greenery patches surface, lower than around sunk type greenery patches
Gathering ground；The overflow pipe 9 is the PVC pipe of diameter 100mm.
The big Stone layer lower surface distance hierarchical composite formula sinking greenery patches earth's surface based on artificial composite soil
52cm is laid with 15cm by the big Stone 8 of 3~7cm of partial size and is formed；Small particle metalling be layed in big Stone layer it
On, 5cm is laid with by the small particle rubble 7 of partial size 1-3cm and is formed；Geotextile layer 6 is layed on small particle metalling, by geotechnique
Woven fabric is laid with 2cm and forms；It is laid with coarse sands layer 5 in geotextile layer 6,5cm is laid with by the natural coarse sand of partial size 0.05-0.2cm and is formed.
It needs carry out 3~5 times pour water to make material natural subsidence in transitional module IV and V work progress of water storage module, improves
Compactness and intensity.
Module III is retained in the lower section of overflow module II, medium is the composite soil for being mixed with super absorbent resin；It is compound
Soil is that super absorbent resin and natural soils are uniformly mixed according to mixing ratio 1:1000, depth 15cm.Implementation process
In, it will be dug out away from earth's surface 10cm depth soil layer, and individually be stored as topsoil, 15cm deep soil under surface soil is dug out, with
It is backfilled after super absorbent resin mixing, because that can not irrigate acceleration, its is settled in backfilling process, therefore needing to wait for several days can be after
The continuous above-mentioned surface soil individually stored of backfill, also can be used the soil layer in planting in such a way that ditch buries.
The vegetation that buffer area 2 uses can weaken impact of the water catchment area water flow to sinking greenery patches, visually for Radix Ophiopogonis
Avoid the inadaptable sense of sinking greenery patches recess bring.Chinese ilex is planted on sunk type greenery patches surface, beautiful and resistance to flood.
Embodiment 2
The sunk type greenery patches that the construction of embodiment 1 obtains is used for rainwater flood control.
According to Nanjing Characteristics of Precipitation and experiment condition, precipitation standard: rainfall intensity 1.23mm/min, continuous rainfall is selected
Time t=60min (the slightly above 10 years one 60min precipitation intensity 1.209mm/min met in Nanjing).Separately design traditional sinking
Formula greenery patches and two groups of greenery patches of the hierarchical composite formula sinking application test based on artificial composite soil.Detailed process and result are as follows:
As described in Example 1, the hierarchical composite formula sinking greenery patches based on artificial composite soil is by water storage module V, stage die
Block IV, water conservation module III, overflow module II and charge for remittance module I are constructed；Wherein water storage module V needs to fill in the construction process
Water sedimentation is at least three times so that material settles, is closely knit.It after Chinese ilex plantation, is spaced at least two weeks, carries out artificial rainmaking test.
The result shows that: work as greenery area: catchment area=1:4, the sunk type greenery patches based on artificial composite soil
Table runoff coefficient reduces 0.1~0.2, and peak shows time retardation 5 minutes；Catchment area outside no greenery patches, traditional sunk type greenery patches
Surface runoff coefficient 0.42, the hierarchical composite formula sinking greenery patches based on artificial composite soil do not generate rainwash, in earth
Time of occurrence is flowed to postpone 20 minutes.Therefore, the hierarchical composite formula sinking greenery patches of the present invention based on artificial composite soil is effective
Runoff coefficient is reduced, between postponement peak is current, flood peak clipping and magnanimity, to be of great significance to urban waterlogging is alleviated.
Claims (7)
1. a kind of hierarchical composite formula sinking greenery patches based on artificial composite soil, which is characterized in that including longitudinally disposed charge for remittance
Module (I), overflow module (II), water conservation module (III), transitional module (IV) and water storage module (V)；The charge for remittance module (I)
Around greenery patches, and overflow module (II) is surrounded, the two intersection is equipped with buffer area (2), and kind has vegetation in it；It is described
Overflow pipe (9) are buried in overflow module (II), the overflow port (1) of overflow pipe (9) is set in the middle part of overflow module (II)；The water conservation
Module (III) is located at the lower part of overflow module (II), wherein is natural soil layer (3) to be retained module in overflow module (II)
It (III) is the composite soil layer (4) for being mixed with super absorbent resin in；The transitional module (IV) is equipped with coarse sands layer from top to bottom
(5) and geotextile layer (6)；The water storage module (V) is filled by small particle rubble (7) and big Stone (8)；The overflow
Mouth (1) is higher than 0.05 ~ 0.1m of greenery patches elevation, lower than gathering ground around greenery patches.
2. a kind of hierarchical composite formula sinking greenery patches based on artificial composite soil according to claim 1, which is characterized in that
The composite soil layer (4) is uniformly mixed by super absorbent resin and natural soil according to 1:1000, and laying depth is
0.15~0.20m。
3. a kind of hierarchical composite formula sinking greenery patches based on artificial composite soil according to claim 1, which is characterized in that
The fineness modulus of the coarse sands layer (5) is 3.7~3.1, and partial size is 0.5mm~2mm, and laying depth is 0.05 ~ 0.1m.
4. a kind of hierarchical composite formula sinking greenery patches based on artificial composite soil according to claim 1, which is characterized in that
Geotextile layer (6) laying depth is 0.02~0.05m.
5. a kind of hierarchical composite formula sinking greenery patches based on artificial composite soil according to claim 1, which is characterized in that
The partial size of water storage module (V) medium and small Stone (7) is 1cm~3cm, and the partial size of big Stone (8) is 3cm~7cm.
6. any hierarchical composite formula sinking greenery patches based on artificial composite soil of Claims 1 to 5 is in road green belt, small
Area greenery patches or Glassed swale purification retain initial rainwater, cut down magnanimity, the application in extension delivery period drought period.
7. application according to claim 6, which is characterized in that the rainfall intensity of the rainwater is 1.23mm/min, rainfall
It is lasted for 60min；Greenery area: catchment area=1:4.
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| CN201610570814.8A CN106013391B (en) | 2016-07-19 | 2016-07-19 | A kind of hierarchical composite formula sinking greenery patches and its application based on artificial composite soil |
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| CN201610570814.8A CN106013391B (en) | 2016-07-19 | 2016-07-19 | A kind of hierarchical composite formula sinking greenery patches and its application based on artificial composite soil |
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| CN106906888A (en) * | 2017-04-15 | 2017-06-30 | 苏州中海建筑设计有限公司 | A kind of residential quarter sponge urban facilities system |
| CN106894491A (en) * | 2017-04-15 | 2017-06-27 | 苏州中海建筑设计有限公司 | A kind of sponge city concave herbaceous field |
| CN108207604B (en) * | 2017-09-19 | 2020-05-12 | 邬瑛 | Light foam composite material with high water storage capacity and capable of continuously supplying water |
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| CN1318284A (en) * | 2001-06-13 | 2001-10-24 | 周鼎力 | Desert and dryland plant growing method for use in desert or/and dry soil |
| KR101270531B1 (en) * | 2011-03-16 | 2013-06-19 | 주식회사 데코페이브 | blocked the temporary storage space of rain water using recycled aggregate |
| US8940170B2 (en) * | 2011-08-22 | 2015-01-27 | Modular Wetland Systems, Inc. | Triple-chambered wetland biofilter treatment system |
| CN205100360U (en) * | 2015-11-04 | 2016-03-23 | 东南大学 | Urban road rainwater holds stagnant structure |
| CN205189098U (en) * | 2015-11-20 | 2016-04-27 | 苏交科集团股份有限公司 | A rainwater garden for building district |
| CN105693934A (en) * | 2016-03-10 | 2016-06-22 | 南京博星科技有限公司 | Organic-inorganic composite super absorbent polymer |
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Application publication date: 20161012 Assignee: Nanjing mickle Information Technology Co.,Ltd. Assignor: HOHAI University Contract record no.: X2021980003231 Denomination of invention: A layered composite sunken green space based on artificial composite soil and its application Granted publication date: 20190329 License type: Common License Record date: 20210430 |
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