CN211523446U - Grass planting ditch with high water storage capacity - Google Patents
Grass planting ditch with high water storage capacity Download PDFInfo
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- CN211523446U CN211523446U CN201922198928.6U CN201922198928U CN211523446U CN 211523446 U CN211523446 U CN 211523446U CN 201922198928 U CN201922198928 U CN 201922198928U CN 211523446 U CN211523446 U CN 211523446U
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Abstract
The utility model discloses a grass planting ditch with high water storage capacity, which comprises a surface water storage layer, a vegetable layer, a planting soil layer, a sand layer, a perforated drain pipe and a porous fiber cotton layer; the surface water storage layer is positioned above the planting soil layer and below the design ground line; the vegetable layer is located planting soil layer upper portion, it is located sandy stratum upper portion to plant the soil layer, the sandy stratum is located the cotton layer upper portion of porous fiber, the cotton layer of porous fiber is located plain soil tamp layer, be the lower floor of grass planting ditch, the perforation drain pipe is located the cotton layer upper portion of porous fiber, and wear to establish in the sandy stratum bottom, and the perforation drain pipe is equipped with the cotton layer setting of perforated one side orientation porous fiber, all still wrap up respectively along grass planting ditch length direction around perforation drain pipe and the cotton layer of porous fiber and have the geotechnological cloth that permeates water of at least one deck. The utility model has the advantages that: the water storage capacity is large, the requirement of sponge city construction can be met, the independent construction of a reservoir can be avoided, or the volume of the reservoir can be reduced, and the problem of shortage of urban land is solved.
Description
Technical Field
The utility model relates to a municipal works technical field, specific saying so relates to a grass planting ditch with high retaining volume.
Background
The main function of the current common grass planting ditches is to collect, convey and discharge runoff rainwater, and the grass planting ditches have certain rainwater purification function, but have limited storage capacity to rainwater resources. For the regions with insufficient water resources, the rainwater resources are of great importance for the conservation of underground water.
SUMMERY OF THE UTILITY MODEL
To the area that the water resource is abundant, need to supply and hold groundwater in the background art, the utility model aims to provide a grass planting ditch with high water storage capacity for solve its limited problem of storage capacity to rainwater resource.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a grass planting ditch with high water storage capacity comprises a surface water storage layer, a vegetation layer, a planting soil layer, a sand layer, a perforated drain pipe and a porous fiber cotton layer; the surface water storage layer is positioned above a planting soil layer of the grass planting ditch and below a design ground line; the vegetable layer is located the planting soil layer upper portion of grass planting ditch, the planting soil layer is located sandy stratum upper portion, the sandy stratum is located the cotton layer upper portion of porous fiber, the cotton layer of porous fiber is located on the plain soil tamp layer, is the lower floor of grass planting ditch, the perforation drain pipe is located the cotton layer upper portion of porous fiber to wear to establish in the sandy stratum bottom, and the perforation drain pipe is equipped with the cotton layer setting of fenestrate one side orientation porous fiber the cotton layer of perforation drain pipe and porous fiber all still wraps up the geotechnological cloth that permeates water of at least one deck respectively all around along grass planting ditch length direction.
In the technical scheme, the porous fiber cotton layer adopts the structure that the porosity is more than 90 percent and each m3The water storage capacity of the water storage tank reaches 0.9m3The above porous cellucotton.
In the technical scheme, the pipe diameter of the perforated drain pipe is not less than 110mm, the perforation rate is 1-3%, and the range alpha of perforation is 45-135 degrees of the lower half part of the perforated drain pipe.
In the technical scheme, the thickness of the sand layer is not less than 150mm, and medium coarse sand is preferred.
In the technical scheme, the thickness of the planting soil layer is not less than 100mm, preferably 200-300 mm, and the planting soil claim which is good in drainage, loose and fertile, free of building and household garbage and free of toxic and harmful substances is adopted.
In the technical scheme, the vegetation layer comprises two or more drought-enduring herbaceous plant varieties, and at least one production period is winter and spring, and one production period is summer and autumn.
In the technical scheme, the surface water storage layer is groove-shaped, and the depth of the surface water storage layer is 200-300 mm.
In the technical scheme, the density of the water-permeable geotextile is not lower than 200g/m3The lapping width is not less than 200 mm.
In the technical scheme, the cross section of the grass planting ditch can be in an inverted parabolic shape, a triangular shape or a trapezoidal shape.
In the technical scheme, one side of the grass planting ditch, into which rainwater flows, is also provided with a layer of pebbles, and the pebbles are positioned on a planting soil layer of the grass planting ditch.
Compared with the prior art, the utility model discloses an advantage and beneficial effect are:
(1) the porous fiber cotton layer is made of porous fiber cotton with the porosity of more than 90 percent and the water storage capacity of more than 90 percent of the volume of the porous fiber cotton layer, the water storage capacity of the porous fiber cotton layer is more than one time of that of a common grass planting ditch, rainwater can be absorbed and stored in the rainy period, the absorbed rainwater is released to the peripheral area in the dry period, underground water is supplemented, the drought condition of peripheral plants is relieved, and the natural accumulation, natural infiltration and natural utilization of the rainwater can be realized;
(2) the opening direction of the perforated drain pipe is arranged downwards to the porous fiber cotton layer, so that rainwater can be guaranteed to be preferentially infiltrated into the porous fiber cotton layer, and the excessive rainwater is drained to a rainwater collection system or a municipal rainwater pipe network through the perforated drain pipe after the porous fiber cotton layer is full of water;
(3) the perforated drain pipe is arranged at the upper part of the porous fiber cotton layer and the bottom of the sand layer, so that rainwater entering the perforated drain pipe can be ensured to be filtered by the sand layer, and the perforated drain pipe can be prevented from being blocked;
the utility model discloses can effectively solve the nervous problem of urban land, only need to rebuild a small part of road or square next door greenery patches into the utility model provides a high retaining volume plant grass ditch can, can satisfy sponge city construction needs on the one hand, on the other hand can avoid the independent construction cistern or reduce the cistern volume. This is especially important for the area with tense land.
Drawings
FIG. 1 is a schematic cross-sectional view of a grass planting ditch with high water storage capacity;
FIG. 2 is a schematic view of the range of the holes of the perforated drain pipe;
FIG. 3 is a schematic cross-sectional view of the grass planting ditch of the present invention connected to the overflow port;
description of reference numerals: 1. a surface aquifer; 2. a vegetable layer; 3. planting a soil layer; 4. a layer of sand; 5. a perforated drain pipe; 6. a porous fibrous cotton layer; 7. a plain soil ramming layer; 8. water-permeable geotextile; 9. Designing a ground line; 10. pebbles; 11. and an overflow port exceeding the standard.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, how to implement the present invention is further explained below with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, the utility model provides a grass planting ditch with high water storage capacity, which comprises a surface water storage layer 1, a vegetation layer 2, a planting soil layer 3, a sand layer 4, a perforated drain pipe 5 and a porous fiber cotton layer 6; wherein: the surface water storage layer 1 is positioned above the planting soil layer 3 of the grass planting ditch and is positioned below the design ground line 9; vegetable layer 2 is located 3 upper portions of planting soil layer of grass planting ditch, it is located 4 upper portions of sandy stratum to plant soil layer 3, sandy stratum 4 is located the cotton layer of porous fiber 6 upper portions, the cotton layer of porous fiber 6 is located on plain soil tamp layer 7, be the lower floor of grass planting ditch, perforation drain pipe 5 is located the cotton layer of porous fiber 6 upper portions, and wear to establish in the 4 bottoms of sandy stratum, and perforation drain pipe 5 is equipped with the cotton layer of perforated one side orientation porous fiber 6 setting, all still wrap up respectively along grass planting ditch length direction around perforation drain pipe 5 and the cotton layer of porous fiber 6 and have at least one deck geotechnological cloth 8 that permeates water.
In the utility model, the porous fiber cotton layer 6 adopts the porosity of more than 90 percent and per m3The water storage capacity of the water storage tank reaches 0.9m3The main rainwater storage part of the porous cellucotton is more than one time of the water storage capacity of the common grass planting ditch. The porous fiber cotton layer 6 can absorb and store rainwater in rainy days, release the absorbed rainwater to peripheral areas in dry days, supplement underground water, relieve the drought conditions of peripheral plants, and realize natural storage, natural permeation and natural utilization of rainwater.
The utility model discloses in, the pipe diameter of perforation drain pipe 5 is not less than 110mm, and the perforation rate is 1 ~ 3%, as shown in figure 2, and the scope alpha that the perforation was seted up on it is 45 between 135 at perforation drain pipe 5 lower half. Wherein, perforation drain pipe 5 is equipped with the purpose that perforation one side set up towards porous fiber cotton layer 6, is in order to guarantee that the rainwater is preferred to be oozed into porous fiber cotton layer 6 down, treats that porous fiber cotton layer 6 impounds the saturation back, and the rainwater is gathering to rainwater collection system or municipal rainwater pipe network through perforation drain pipe 5. To the region that has the rainwater retrieval and utilization requirement, this perforation drain pipe 5 can play the function of collecting the rainwater through preliminary purification on the one hand, and on the other hand can play the overflow effect that exceeds standard to can not ponding in the assurance grass planting ditch.
In the present invention, the thickness of the sand layer 4 should not be less than 150mm, preferably medium coarse sand. This sand layer 4 mainly plays the filtration purification effect to the rainwater, prevents to influence the life of porous cellucotton because of SS is too high in the rainwater, also can avoid perforation drain pipe 5 to be blockked up simultaneously.
The utility model discloses in, the thickness of planting soil layer 3 is preferred 200 ~ 300mm, and its minimum thickness should not be less than 100 mm. The planting soil layer 3 preferably adopts planting soil claim which has good drainage, is loose and fertile, does not contain building and domestic garbage, and is nontoxic and harmless.
The utility model discloses in, vegetable layer 2 contains two kinds and more than two kinds of drought-enduring herbaceous plant varieties, and wherein has at least one production cycle for the winter spring, and one production cycle is summer autumn.
The utility model discloses in, surface aquifer 1 is the flute profile, and its degree of depth is preferred 200 ~ 300 mm. This surface water-storage layer 1 does not generally hold water, only when rainfall is greater than the infiltration speed of grass planting ditch, the rainwater is too late when infiltrating, just plays the effect of short-time storage rainwater, treats that the rain stops the back, and the accessible infiltrates down to lower floor's porous fiber cotton layer 6 or discharges away through perforation drain pipe 5, realizes the function of alternate peak drainage.
In the utility model, the density of the permeable geotextile 8 is not lower than 200g/m3And the lap joint width of the permeable geotextile 8 is not less than 200 mm.
The utility model discloses in, the cross-sectional shape in grass planting ditch can be for the shape of the inverted parabolic line, triangle-shaped or trapezoidal.
In the utility model, one layer of pebbles 10 is laid on one side of the grass planting ditch where the rainwater is gathered, and the pebbles 10 are positioned on the planting soil layer 3 of the grass planting ditch. The pebble 10 can not only play a role in slowing down the flow rate of rainwater converging into the grass planting ditch and reducing the scouring effect on the grass planting ditch, but also play a role in intercepting large particles such as dry branches and fallen leaves, has a certain purification effect and can realize the primary purification of rainwater.
According to actual use needs, as shown in fig. 3, an overproof overflow port 11 can be designed at the tail end of the grass planting ditch and used for directly discharging the overproof rainwater in the grass planting ditch to be collected to a rainwater collection system or a municipal rainwater pipe network. The overflow port 11 is connected to the perforated drain pipe 5 and the rain water collecting system or the municipal rain water pipe network in the grass planting ditch, and the top of the overflow port is usually about 100mm higher than the lowest part of the surface water storage layer 1 of the grass planting ditch.
Finally, the above description is only the embodiments of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a grass planting ditch with high water storage capacity which characterized in that: comprises a surface water storage layer (1), a vegetable layer (2), a planting soil layer (3), a sand layer (4), a perforated drain pipe (5) and a porous fiber cotton layer (6); the surface water storage layer (1) is positioned above a planting soil layer (3) of the grass planting ditch and is positioned below a design ground line (9); vegetable layer (2) are located planting soil layer (3) upper portion of grass planting ditch, planting soil layer (3) are located sandy stratum (4) upper portion, sandy stratum (4) are located porous fiber cotton layer (6) upper portion, porous fiber cotton layer (6) are located on plain soil tamp layer (7), are the lower floor of grass planting ditch, perforation drain pipe (5) are located porous fiber cotton layer (6) upper portion to wear to establish in sandy stratum (4) bottom, and perforation drain pipe (5) are equipped with fenestrate one side and set up towards porous fiber cotton layer (6) perforation drain pipe (5) and porous fiber cotton layer (6) all still wrap up respectively along grass planting ditch length direction all around and have at least one deck geotechnological cloth (8) that permeates water.
2. According to claim 1The grass planting ditch with high water storage capacity is characterized in that: the porous fiber cotton layer (6) adopts a structure that the porosity is more than 90 percent and each m3The water storage capacity of the water storage tank reaches 0.9m3The above porous cellucotton.
3. A grass growing trench having a high impoundment capacity as defined in claim 1, wherein: the pipe diameter of the perforated drain pipe (5) is not less than 110mm, the perforation rate is 1-3%, and the perforation range alpha is 45-135 degrees of the lower half part of the perforated drain pipe (5).
4. A grass growing trench having a high impoundment capacity as defined in claim 1, wherein: the thickness of the sand layer (4) is not less than 150mm, and medium coarse sand is adopted.
5. A grass growing trench having a high impoundment capacity as defined in claim 1, wherein: the thickness of the planting soil layer (3) is not less than 100mm, and planting soil claim which has good drainage, is loose and fertile, does not contain building and domestic garbage, and is nontoxic and harmless is adopted.
6. A grass growing trench having a high impoundment capacity as defined in claim 1, wherein: the vegetable layer (2) comprises two or more drought-enduring herbaceous plant varieties, and at least one production period is winter and spring, and one production period is summer and autumn.
7. A grass growing trench having a high impoundment capacity as defined in claim 1, wherein: the surface water storage layer (1) is groove-shaped, and the depth of the surface water storage layer is 200-300 mm.
8. A grass growing trench having a high impoundment capacity as defined in claim 1, wherein: the density of the permeable geotextile (8) is not less than 200g/m3The lapping width is not less than 200 mm.
9. A grass growing trench having a high impoundment capacity as defined in claim 1, wherein: the cross section of the grass planting ditch is in an inverted parabolic shape, a triangular shape or a trapezoidal shape.
10. A grass growing trench having a high impoundment capacity as defined in claim 1, wherein: one side of the grass planting ditch, into which rainwater flows, is also provided with a layer of pebbles (10), and the pebbles (10) are positioned on a planting soil layer (3) of the grass planting ditch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922198928.6U CN211523446U (en) | 2019-12-10 | 2019-12-10 | Grass planting ditch with high water storage capacity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922198928.6U CN211523446U (en) | 2019-12-10 | 2019-12-10 | Grass planting ditch with high water storage capacity |
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| CN211523446U true CN211523446U (en) | 2020-09-18 |
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| CN201922198928.6U Active CN211523446U (en) | 2019-12-10 | 2019-12-10 | Grass planting ditch with high water storage capacity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111201853A (en) * | 2020-01-13 | 2020-05-29 | 北京金隅节能保温科技(大厂)有限公司 | Plant planting method based on porous cellucotton |
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- 2019-12-10 CN CN201922198928.6U patent/CN211523446U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111201853A (en) * | 2020-01-13 | 2020-05-29 | 北京金隅节能保温科技(大厂)有限公司 | Plant planting method based on porous cellucotton |
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