CN207167170U - A kind of dry type grass planting ditch of ecological, environmental protective - Google Patents
A kind of dry type grass planting ditch of ecological, environmental protective Download PDFInfo
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- CN207167170U CN207167170U CN201721137236.5U CN201721137236U CN207167170U CN 207167170 U CN207167170 U CN 207167170U CN 201721137236 U CN201721137236 U CN 201721137236U CN 207167170 U CN207167170 U CN 207167170U
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Abstract
The utility model discloses a kind of dry type grass planting ditch of ecological, environmental protective, including vegetable layer, planting soil layer, backfill layer, permeable formation, gravel layer, the perforated pipe being cascading, the perforated pipe is axially set in the middle part or bottom of gravel layer along dry type grass planting ditch, in addition to is arranged at planting soil layer and backfills the bentonite bed between layer.The utility model between planting soil layer and backfill layer by setting bentonite bed, utilize the characteristic of adsorbable 8~15 times of own vol waters of bentonite, when irrigating in dry season or raining once in a while, it can fully absorb and preserve moisture, so as to effectively extend irrigation time, reach and reduce the foster number of dry type grass planting ditch dry season watering tube, reduce the purpose of human and material resources cost；Meanwhile and can enough keep dry type grass planting ditch can transmit, permeate at rainy season, settling, filtering, biodegradable rainwater, play a part of reduce run-off, improve Runoff.
Description
Technical field
The utility model belongs to municipal drainage technical field, and in particular to and one kind can effectively extend irrigation time, manpower,
The low ecological, environmental protective dry type grass planting ditch of material resources cost.
Background technology
With the development of urbanization, city hardening area increase, rainwater infiltration capacity is reduced in rainfall, causes heavy rain big vast
Peak shifts to an earlier date, flood peak becomes big, simultaneously because the ratio increase on waterproof ground, rainfall runoff have the characteristics of big water, water quality inferiority,
Pollution of area source is caused to have sudden.Urban road rainwater discharge at present still uses " gutter-inlet for stom water-connection mostly
The conventional discharge mode such as pipe-municipal pipeline ", in some outskirts of a town or the combination area of city and country based on irrigation canals and ditches draining.This traditional row
Aqueous mode causes a large amount of city rainwater directly to discharge, and not only water resource waste is serious, and influences Urban Water Environment and whole stream
The hydrologic cycle of domain surface water body and underground water, urban ecological system is destroyed, jeopardize urban drinking water safety.
Grass planting ditch refers to the landscape earth's surface irrigation canals and ditches drainage system for planting vegetation.Rainwash with compared with low flow velocity through grass planting ditch
Withhold, plant filtering and infiltration, most suspended particulate contaminants in rainfall runoff and be partly dissolved state pollutant and effectively remove.
The grass planting ditch in roadside can replace traditional inlet for stom water and drainage pipeline networks, because the pollutant in grass planting ditch is visible, therefore grass planting
Ditch replaces traditional underdrainage system, fundamentally solves the problems, such as traditional rainwater and sewage conduct hybrid junction and disorderly connects, passes through
Appropriate control measures, effectively control and processing footpath stream transmission procedure and the pollutant entered before receiving water body.According to earth's surface
Transmission means of the runoff in grass planting ditch, grass planting ditch can be divided into 3 types：Standard transmission grass planting ditch（standard
conveyance swales）, dry grass planting ditch（dry swales）With wet grass planting ditch（wet wales）.Standard transmission grass planting ditch structure
Make simply, be widely used in rainfall runoff transmission and processing early stage, apply in general to the open environment such as highway and park；It is dry
Grass planting ditch adds bottom discharge system on the basis of standard transmission grass planting ditch, and arranges filling out with more preferable permeance property
The bed of material, diafiltration and the transmission performance of grass planting ditch are enhanced, be adapted to the application of urban environment；Wet grass planting ditch then keeps moistening shape for a long time
State, due to the defects of growing mosquito, general urban environment is difficult to use.The widely used dry type in city of the prior art is planted
Careless ditch, its section structure are to set stronger backfill layer, permeable formation and the gravel layer of water penetration in the lower leaf of planting soil layer, although
It so can be to ensure that dry type grass planting ditch possesses the premise of drainage, rainwater collecting function, but the water conservation cycle can be caused short, in nothing
When the long-time such as dry season of rain is without precipitation, the easy water shortage of planting soil layer causes the vegetation death planted thereon, is seen so as to reduce
Reward property, to safeguard that vegetation needs the number for increasing manual watering or machinery spray, human and material resources cost can be caused higher again, into
To restrict the key of dry type grass planting ditch application.
Utility model content
The purpose of this utility model is that irrigation time, the low life of human and material resources cost can effectively be extended by providing one kind
State environmentally-friendly dry grass planting ditch.
What the purpose of this utility model was realized in：Including be cascading vegetable layer, planting soil layer, backfill
Layer, permeable formation, gravel layer, perforated pipe, the perforated pipe are axially set in the middle part or bottom of gravel layer along dry type grass planting ditch, also
Including being arranged at planting soil layer and backfilling the bentonite bed between layer.
Bentonite is a kind of claystone, is also known as smectite clay rock, often containing a small amount of illite, kaolinite, galapectite, green mud
Stone, zeolite, quartz, feldspar, calcite etc., bentonite have strong a hygroscopicity and dilatancy, and adsorbable 8~15 times from body
Long-pending water；As a form of gel and suspension can be dispersed into aqueous medium, this medium solution has certain viscosity, thixotropy
And lubricity；There is stronger cation exchange capacity (CEC)；There is certain adsorption capacity to various gases, liquid, organic substance, it is maximum
Adsorbance is up to 5 times of weight of itself；Its admixture with water, mud or fine sand has plasticity and cohesiveness, meanwhile, water suction
Drainability is good after saturation, and excessive moisture can fully leak out to lower floor, retains the original function of grass planting ditch.
One layer of valency is set between planting soil layer and backfill layer that the utility model passes through the dry type grass planting ditch in prior art
The not high bentonite bed of lattice, using the characteristic of adsorbable 8~15 times of own vol waters of bentonite, irrigated in dry season or even
When you rain, it can fully absorb and preserve moisture, so as to effectively extending irrigation time, reach and reduce dry type grass planting ditch dry season and pour
Water pipe supports number, reduces the purpose of human and material resources cost；Meanwhile and can enough keeps dry type grass planting ditch can be quick at rainy season
Transmission, infiltration, sedimentation, filtering, the function of biodegradable rainwater, play a part of reducing run-off, improve Runoff.
Brief description of the drawings
Fig. 1 is the utility model cross section structure schematic diagram；
In figure：1- vegetable layers, 2- planting soil layers, 3- backfill layers, 4- permeable formations, 5- gravel layers, 6- perforated pipes, 7- bentonites
Layer, 8- cobbles.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples, but not in any way to this practicality
Any changes and modifications that are new to be any limitation as, being made based on the utility model training centre, belong to protection model of the present utility model
Enclose.
As shown in figure 1, the utility model include be cascading vegetable layer 1, planting soil layer 2, backfill layer 3, infiltration
Layer 4, gravel layer 5, perforated pipe 6, the perforated pipe 6 are axially set in the middle part or bottom of gravel layer 5 along dry type grass planting ditch, also wrapped
Include the bentonite bed 7 being arranged between planting soil layer 2 and backfill layer 3.
The thickness of the planting soil layer 2 is 300~500mm, and the thickness of the bentonite bed 7 is 30~100mm, described time
The thickness of packing course 3 is 500~1000mm, and the thickness of the permeable formation 4 is 120~180mm.
The particle diameter of the gravel layer 5 is the single cobble rock layers of 50~φ of φ 80mm or is the thin of 5~φ of φ 10mm by particle diameter
The gravel layer that gravel mixes with the coarse gravel that particle diameter is 50~φ of φ 80mm.
The backfill layer 3 is made up of the good matrix of water filtering performance, and the permeable formation 4 is fine sand layer.
The vegetable layer 1 is the plant of floods and droughts two.
The plant of floods and droughts two includes cyperus alternifolius, mullet grass, tawny daylily and/or iris.
Between the permeable formation 4 and gravel layer 5 and/or the outer surface of perforated pipe 6 is provided with one layer of geotextiles.
The gradient of the perforated pipe 6 along dry type grass planting ditch axially inclined 1~3% is set, the one end of perforated pipe 6 closing and
Circumferentially it is provided with multiple through holes.
The perforated pipe 6 is UPVC perforated pipes, PPR perforated pipes, double thread ooze pipe or double-wall corrugated pipe.
Vegetable layer 1 in the planting soil layer 2 is interspersed with the cobble 8 that particle diameter is 50~φ of φ 80mm.
The section of the dry type grass planting ditch has circular section, triangular section, trapezoidal cross-section and right-angled trapezium section.
The lower section and side of the gravel layer 5 of the section of the dry type grass planting ditch are rammed earth layer.
Utility model works principle：
One layer of valency is set between planting soil layer and backfill layer that the utility model passes through the dry type grass planting ditch in prior art
The not high bentonite bed of lattice, using the characteristic of adsorbable 8~15 times of own vol waters of bentonite, irrigated in dry season or even
When you rain, it can fully absorb and preserve moisture, so as to effectively extending irrigation time, reach and reduce dry type grass planting ditch dry season and pour
Water pipe supports number, reduces the purpose of human and material resources cost；Meanwhile and can enough keeps dry type grass planting ditch can be quick at rainy season
Transmission, infiltration, sedimentation, filtering, the function of biodegradable rainwater, play a part of reducing run-off, improve Runoff.Enter one
Step, the thickness of planting soil layer be 300~500mm, and the thickness of bentonite bed is 30~100mm, backfill layer thickness be 500~
1000mm, the thickness of permeable formation is 120~180mm；By setting different Rotating fields and thickness, it can ensure that grass planting ditch is quick
While water seepage function is constant, and can ensures there is good storage capacity, and the moisture of bentonite bed storage can also pass through
Capillary effect enters planting soil layer and vegetation root system directly absorbs, so as to reach the number for reducing the watering of dry season vegetation.Further,
The particle diameter of gravel layer is the single cobble rock layers of 50~φ of φ 80mm or is φ by the bird's-eye gravel and particle diameter that particle diameter is 5~φ of φ 10mm
The gravel layer of 50~φ 80mm coarse gravel mixing, so as to the adjustment gravel layer of the precipitation flexible in size according to working environment
Composition, between seepage velocity and storage capacity formed balance.Further, between permeable formation and gravel layer and/or perforated pipe
Outer surface is provided with one layer of geotextiles, has both been avoided that tiny sandy soil etc. entered gravel layer and causing grass planting ditch to sink influences scape
See, and be avoided that the impurity such as sandy soil cause precipitation to block into perforated pipe, the filtered water into perforated pipe can be direct
As Treated sewage reusing, so as to improve the utilization rate of water resource；Further, since geotextiles have high temperature resistant, anti-freezing, it is ageing-resistant,
Corrosion resistant characteristic, therefore the adaptability of grass planting ditch can also be improved and reduce maintenance workload.Further, perforated pipe is along dry type
The gradient of grass planting ditch axially inclined 1~3% is set, and perforated pipe one end is closed and is circumferentially provided with multiple through holes；Perforated pipe
The gradient is 1~3% so that the rainfall runoff of collection is flowed using gravity along perforated pipe, is easy to accelerate the Urban Rain footpath collected
Stream, and the precipitation obstruction of silt can be reduced.In summary, the utility model, which has, can effectively extend irrigation time,
Reduce the characteristics of grass planting ditch human and material resources manage and protect cost.
As shown in figure 1, after heavy rain is fallen in city, the ponding of hard surface flows into dry type grass planting ditch of the present utility model, footpath
Flow along grass planting ditch to be withheld compared with low flow velocity, the filtering and infiltration of layer of plants 1, runoff absorbed by planting soil layer 2 and gradually under ooze
To bentonite bed 7, until saturation, unnecessary moisture is infiltered under continuing into good filter for expansion after bentonite bed 7 absorbs moisture
Water-based backfill layer 3, sand bed 4 simultaneously reach gravel layer 5, partial moisture infilters rammed earth layer addedly under being continued by gravity under
Water, and unnecessary water flows into traditional underdrainage system or middle water reclamation system through perforated pipe 6.By of the present utility model dry
Formula grass planting ditch is to the collective effects such as the precipitation of rainfall runoff, filtering, infiltration, withholding and biodegradation, most suspensions therein
Grain pollutant and it is partly dissolved state pollutant and effectively removes, so as to plays a part of reducing run-off, improve Runoff.And
When arid, the moisture of bentonite bed accumulation can effectively be extended by the direct absorption of capillarity and vegetation root system
Irrigation time, reach and reduce the foster number of dry type grass planting ditch dry season watering tube, reduce the purpose of human and material resources cost.
Claims (10)
1. a kind of dry type grass planting ditch of ecological, environmental protective, including the vegetable layer being cascading（1）, planting soil layer（2）, backfill layer
（3）, permeable formation（4）, gravel layer（5）, perforated pipe（6）, the perforated pipe（6）Gravel layer is axially set in along dry type grass planting ditch
（5）Middle part or bottom, it is characterised in that also include be arranged at planting soil layer（2）With backfill layer（3）Between bentonite bed
（7）.
2. the dry type grass planting ditch of ecological, environmental protective according to claim 1, it is characterised in that the planting soil layer（2）Thickness be
300~500mm, the bentonite bed（7）Thickness be 30~100mm, the backfill layer（3）Thickness be 500~1000mm,
The permeable formation（4）Thickness be 120~180mm.
3. the dry type grass planting ditch of ecological, environmental protective according to claim 1 or claim 2, it is characterised in that the gravel layer（5）Particle diameter
It is 50~φ of φ 80mm for the single cobble rock layers of 50~φ of φ 80mm or by the bird's-eye gravel and particle diameter that particle diameter is 5~φ of φ 10mm
The gravel layer of coarse gravel mixing.
4. the dry type grass planting ditch of ecological, environmental protective according to claim 1 or claim 2, it is characterised in that the backfill layer（3）By drainage
Matrix of good performance is formed, the permeable formation（4）For fine sand layer.
5. the dry type grass planting ditch of ecological, environmental protective according to claim 1 or claim 2, it is characterised in that the permeable formation（4）And gravel
Layer（5）Between and/or perforated pipe（6）Outer surface is provided with one layer of geotextiles.
6. the dry type grass planting ditch of ecological, environmental protective according to claim 1 or claim 2, it is characterised in that the perforated pipe（6）Along dry type
The gradient of grass planting ditch axially inclined 1~3% is set, the perforated pipe（6）Close and be circumferentially provided with multiple through holes in one end.
7. the dry type grass planting ditch of ecological, environmental protective according to claim 5, it is characterised in that the perforated pipe（6）Perforated for UPVC
Pipe, PPR perforated pipes, double thread ooze pipe or double-wall corrugated pipe.
8. the dry type grass planting ditch of ecological, environmental protective according to claim 1 or claim 2, it is characterised in that the planting soil layer（2）On
Vegetable layer（1）It is interspersed with the cobble that particle diameter is 50~φ of φ 80mm（8）.
9. the dry type grass planting ditch of ecological, environmental protective according to claim 1 or claim 2, it is characterised in that the section of the dry type grass planting ditch
There are circular section, triangular section, trapezoidal cross-section and right-angled trapezium section.
10. the dry type grass planting ditch of ecological, environmental protective according to claim 9, it is characterised in that the section of the dry type grass planting ditch it
Gravel layer（5）Lower section and side be rammed earth layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721137236.5U CN207167170U (en) | 2017-09-06 | 2017-09-06 | A kind of dry type grass planting ditch of ecological, environmental protective |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721137236.5U CN207167170U (en) | 2017-09-06 | 2017-09-06 | A kind of dry type grass planting ditch of ecological, environmental protective |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207167170U true CN207167170U (en) | 2018-04-03 |
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ID=61742998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721137236.5U Active CN207167170U (en) | 2017-09-06 | 2017-09-06 | A kind of dry type grass planting ditch of ecological, environmental protective |
Country Status (1)
| Country | Link |
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| CN (1) | CN207167170U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108371058A (en) * | 2018-04-23 | 2018-08-07 | 中国电建集团成都勘测设计研究院有限公司 | Grass planting ditch structure with water holding function |
| CN109511481A (en) * | 2018-12-14 | 2019-03-26 | 苍南县绿苑家禽专业合作社 | A kind of ecological, environmental protective grass planting ditch structure for chicken house |
| CN109618784A (en) * | 2018-12-12 | 2019-04-16 | 英德市旺地樱花种植有限公司 | A kind of abrupt slope oriental cherry great Shu plantation construction |
-
2017
- 2017-09-06 CN CN201721137236.5U patent/CN207167170U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108371058A (en) * | 2018-04-23 | 2018-08-07 | 中国电建集团成都勘测设计研究院有限公司 | Grass planting ditch structure with water holding function |
| CN108371058B (en) * | 2018-04-23 | 2023-08-22 | 中国电建集团成都勘测设计研究院有限公司 | Grass planting ditch structure with water holding function |
| CN109618784A (en) * | 2018-12-12 | 2019-04-16 | 英德市旺地樱花种植有限公司 | A kind of abrupt slope oriental cherry great Shu plantation construction |
| CN109511481A (en) * | 2018-12-14 | 2019-03-26 | 苍南县绿苑家禽专业合作社 | A kind of ecological, environmental protective grass planting ditch structure for chicken house |
| CN109511481B (en) * | 2018-12-14 | 2020-11-03 | 苍南县绿苑家禽专业合作社 | Ecological environment-friendly grass planting ditch structure for chicken farm |
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