CN108915063B - Shallow grass planting ditch with sewage intercepting and purifying functions for sponge city - Google Patents
Shallow grass planting ditch with sewage intercepting and purifying functions for sponge city Download PDFInfo
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- CN108915063B CN108915063B CN201810825887.6A CN201810825887A CN108915063B CN 108915063 B CN108915063 B CN 108915063B CN 201810825887 A CN201810825887 A CN 201810825887A CN 108915063 B CN108915063 B CN 108915063B
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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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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Abstract
The invention provides a shallow grass planting ditch with a sewage interception and purification function for a sponge city, which comprises an undisturbed soil layer, a second gravel layer and a second geotextile filter layer; two be provided with respectively in the original state soil layer top side soil between the side drainage curb stone in the bilateral symmetry form the border sloping block, just two the border sloping block is rather than adjacent the side drainage curb stone is laminated mutually. Because of the contact of first geotechnological cloth filter layer and rainwater infiltration auxiliary device, through the characteristic of sponge material among the rainwater infiltration auxiliary device, the rainwater can follow the quick seepage flow of rainwater infiltration auxiliary device, because of sponge layered structure overall structure among the rainwater infiltration auxiliary device is similar with the plant roots structure, and be the diffusion form and distribute inside original state soil water storage layer, so the rainwater can spread rapidly and permeate in original state soil water storage layer, accelerate the osmotic coefficient to soil original state soil water storage layer, the quick infiltration of the rainwater of being convenient for, strengthen planting the flood storage regulating power of shallow grass ditch to the rainwater.
Description
Technical Field
The invention belongs to the technical field of rainwater treatment, and particularly relates to a shallow grass planting ditch with a sewage interception and purification function for a sponge city.
Background
Shallow grass ditches are main facilities for rainwater infiltration of roads, are devices for realizing rainwater treatment and resource utilization, are also called vegetation shallow ditches, grass planting shallow ditches and grass planting ditches, are engineering measures for planting vegetation in surface ditches, and are generally collected and treated by gravity flow. When rainwater flows through the shallow grass ditches, most pollutants in runoff are removed under the combined action of precipitation, filtration, permeation, absorption, biodegradation and the like, and the purposes of rainwater runoff collection and utilization and runoff pollution control are achieved. The rainwater treatment and utilization facility has the advantages of simple structure, small investment, quick construction and easy maintenance, has good purification treatment effect on the rainfall runoff with small intensity, can effectively reduce the peak value of the runoff, can also create good landscape effect, and is a promising rainwater treatment and utilization facility.
Based on the above, the inventor finds that when the rainwater amount is large, a large amount of rainwater is difficult to rapidly infiltrate into the undisturbed soil water storage layer with a low soil permeability coefficient, so that the rainwater can be drained into a municipal rainwater pipe network or other water bodies only through the overflow device, and the flood storage adjusting capacity of the planting shallow grass ditches for the rainwater is low.
For example, application No.: CN201310740304.7 the invention discloses a shallow grass ditch, which comprises an overflow device, a geotextile layer, a vegetable layer and a planting soil layer, wherein the vegetable layer is positioned above the planting soil layer, the shallow grass ditch also comprises a filter layer and a water storage layer, the filter layer is positioned below the planting soil layer and above the geotextile layer, and the water storage layer is positioned below the geotextile layer. When rainwater flows into the shallow grass ditch from the road surface, the rainwater sequentially passes through the planting soil layer, the filtering layer, the geotechnical cloth layer and the water storage layer and finally flows into the undisturbed soil layer. Because the water storage layer is arranged below the filter layer, more rainwater can be quickly contained in the water storage layer, the water storage layer can timely contain rainwater for an original soil layer with a lower soil permeability coefficient, the rainwater on the water storage layer permeates the original soil layer again, the water storage layer can quickly store water, the condition that the geotechnical cloth layer is blocked by soil on a planting soil layer is effectively avoided by installing the filter layer, the rainwater can permeate the water storage layer quickly, and the flood storage adjusting capability of the shallow grass ditches for rainwater in the area with the lower soil permeability coefficient is effectively improved.
Based on the above patent, the inventor finds that although the above patent temporarily stores rainwater through the added aquifer, the aquifer itself can store less rainwater, so that the flood storage regulation capability is weaker, and the problem of low rainwater permeability coefficient of the undisturbed soil layer cannot be fundamentally solved.
Therefore, in view of the above, the present invention provides a shallow grass planting ditch with a sewage intercepting and purifying function for a sponge city, which is developed and improved for the existing structure and defects, so as to achieve the purpose of higher practical value.
Disclosure of Invention
In order to solve the technical problems, the invention provides a shallow grass planting ditch with a sewage interception and purification function for a sponge city, which aims to solve the problem that a large amount of rainwater is difficult to rapidly penetrate into an undisturbed soil water storage layer with a low soil permeability coefficient when the rainwater amount is large.
The invention is used for the purpose and the effect of planting shallow grass ditches with the functions of pollutant interception and purification in sponge cities, and is achieved by the following specific technical means:
a shallow grass planting ditch with a sewage interception and purification function for a sponge city comprises an undisturbed soil layer, side drainage curbs, edge inclined blocks, a concrete reservoir main body, a reservoir, an overflow well, a communication pipeline, an underground drainage pipe, an undisturbed soil water storage layer, a rainwater infiltration auxiliary device, a sponge layer, a sponge layered structure, a sewage interception and purification layer, a vegetation planting layer, a first gravel layer, a first geotextile filter layer, an interception layer, a second gravel layer and a second geotextile filter layer; the soil on the top side of an undisturbed soil layer between the two side drainage road edge stones is provided with one edge sloping block in a bilateral symmetry manner, and the two edge sloping blocks are respectively attached to the adjacent side drainage road edge stones; the concrete reservoir main body is arranged in the undisturbed soil layer at the bottom of the two edge inclined blocks, and the reservoir is arranged in the concrete reservoir main body; the bottom of the concrete reservoir main body is connected with a plurality of groups of overflow units communicated with the reservoir at intervals in a front-back arrangement mode, and each group of overflow units consists of two bilaterally symmetrical overflow wells; the two overflow wells in each group of overflow units are communicated with each other through one communication pipeline, and the two overflow wells in each group of overflow units are respectively communicated with the adjacent underground drainage pipes through one communication pipeline; the bottom end of the inner wall of the reservoir is provided with the interception layer which is formed by the second gravel layer and the second geotextile filter layer; the second geotextile filter layer is positioned below and is contacted with the bottom end of the inner wall of the reservoir, and the size of the second geotextile filter layer is consistent with that of the bottom end of the inner wall of the reservoir; the second gravel layer is paved above the second geotextile filter layer; the inner wall of the reservoir is filled with the undisturbed soil reservoir layer from the interception layer to the opening end; the rainwater infiltration auxiliary device is arranged on the top side of the undisturbed soil aquifer.
Further, the rainwater penetration assisting device is composed of the sponge layer and the sponge layered structure; the sponge layer is paved above the undisturbed soil water storage layer.
Furthermore, the bottom end surface of the sponge layer is in a front-back interval arrangement shape and is fixedly connected with a plurality of groups and the sponge layered structure which is of an integrated structure, and the sponge layered structures are not in contact with each other.
Furthermore, a plurality of groups of sponge layered structures fixedly connected with the bottom end face of the sponge layer are buried inside the undisturbed soil water storage layer.
Further, among the rainwater infiltration auxiliary device sponge layered structure overall structure is similar with plant roots structure, and is the diffuse form distribute in inside the original state soil aquifer.
Further, rainwater infiltration auxiliary device top be provided with by vegetation layer, vegetation planting layer, first grit layer and first geotechnological cloth filter layer constitute jointly cut dirty purification layer, and cut dirty purification layer and be located two between the border sloping block.
Further, the first geotextile filter layer is in contact with the sponge layer; the first gravel layer is paved above the first geotextile filter layer.
Furthermore, a vegetation planting layer is laid above the first gravel layer, and a vegetation layer is planted on the vegetation planting layer.
Compared with the prior art, the invention has the following beneficial effects:
rainwater is firstly gathered on the dirt intercepting and purifying layer, the rainwater permeates into the vegetation layer and the vegetation planting layer, large impurities flowing along with the rainwater permeate into the vegetation layer and the vegetation planting layer through the rainwater to be filtered and blocked, then the rainwater and part of soil in the vegetation planting layer flowing along with the rainwater penetrate through the first gravel layer to be filtered and blocked through the first gravel layer, the rainwater penetrates through the first gravel layer and then contacts with the first geotextile filter layer, due to the characteristics of the material of the first geotextile filter layer, the rainwater can rapidly permeate along the rainwater penetration auxiliary device, and part of the residual soil in the vegetation planting layer in the rainwater is filtered and blocked through the first geotextile filter layer, due to the contact of the first geotextile filter layer and the rainwater penetration auxiliary device, the rainwater can rapidly permeate along the rainwater penetration auxiliary device through the characteristics of the sponge material in the rainwater penetration auxiliary device, and due to the fact that the whole structure of the sponge layered structure in the rainwater penetration auxiliary device is similar to the structure of a plant root system, and the rainwater is distributed in the undisturbed soil water storage layer in a diffused manner, so that the rainwater can be rapidly diffused and permeated in the undisturbed soil water storage layer, the permeation coefficient of the undisturbed soil water storage layer is accelerated, the rainwater can be rapidly permeated, and the flood storage and adjustment capability of planting shallow grass ditches on the rainwater is enhanced.
Drawings
FIG. 1 is a schematic view of the structure of a shallow grass furrow for planting according to the present invention.
Fig. 2 is a schematic structural view of the rainwater penetration assisting device of the present invention.
Fig. 3 is a partially broken-away structural schematic view of the rainwater penetration assisting device of the invention.
Fig. 4 is a schematic view of the structure of the pollutant-cutting purification layer of the invention.
Fig. 5 is a schematic view of the interception layer structure of the present invention.
Fig. 6 is a schematic structural view of the non-interception purification layer, the rainwater penetration assisting device and the interception layer in fig. 1.
Fig. 7 is a side cross-sectional structural view of fig. 6 of the present invention.
FIG. 8 is a schematic cross-sectional view A-A of FIG. 2 of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1-undisturbed soil layer, 2-side drainage road edge stone, 3-edge sloping block, 4-concrete reservoir main body, 401-reservoir, 5-overflow well, 6-communication pipeline, 7-underground drainage pipe, 8-undisturbed soil water storage layer, 9-rainwater penetration auxiliary device, 901-sponge layer, 902-sponge layered structure, 10-pollutant-intercepting purification layer, 1001-vegetation layer, 1002-vegetation planting layer, 1003-first gravel layer, 1004-first geotextile filter layer, 11-intercepting layer, 1101-second gravel layer and 1102-second geotextile filter layer.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 8:
the invention provides a shallow grass planting ditch with a dirt intercepting and purifying function for a sponge city, which comprises an undisturbed soil layer 1, a side drainage road edge stone 2, an edge sloping block 3, a concrete reservoir main body 4, a reservoir 401, an overflow well 5, a communication pipeline 6, an underground drainage pipe 7, an undisturbed soil reservoir layer 8, a rainwater penetration auxiliary device 9, a sponge layer 901, a sponge layered structure 902, a dirt intercepting and purifying layer 10, a vegetation layer 1001, a vegetation planting layer 1002, a first gravel layer 1003, a first geotextile filter layer 1004, an intercepting layer 11, a second gravel layer 1101 and a second geotextile filter layer 1102; the two side drainage curbstones 2 are symmetrically arranged on the left and right sides in the soil on the top side of the undisturbed soil layer 1 between the two side drainage curbstones 2, and the two side sloping blocks 3 are respectively attached to the adjacent side drainage curbstones 2; the concrete reservoir main body 4 is arranged in the undisturbed soil layer 1 at the bottom of the two edge inclined blocks 3, and the reservoir 401 is arranged in the concrete reservoir main body; the bottom of the concrete reservoir body 4 is connected with a plurality of groups of overflow units communicated with the reservoir 401 at intervals in a front-back arrangement manner, and each group of overflow units consists of two bilaterally symmetrical overflow wells 5; the two overflow wells 5 in each group of overflow units are communicated with each other through one communication pipeline 6, and the two overflow wells 5 in each group of overflow units are respectively communicated with the adjacent underground drainage pipes 7 through one communication pipeline 6; the bottom end of the inner wall of the reservoir 401 is provided with the interception layer 11 which is composed of the second gravel layer 1101 and the second geotextile filter layer 1102; the second geotextile filter layer 1102 is positioned below and contacts with the bottom end of the inner wall of the reservoir 401, and the size of the second geotextile filter layer 1102 is consistent with that of the bottom end of the inner wall of the reservoir 401; the second gravel layer 1101 is laid above the second geotextile filter layer 1102; the inner wall of the reservoir 401 is filled with the undisturbed soil aquifer 8 from the interception layer 11 to the opening end; the rainwater infiltration auxiliary device 9 is arranged on the top side of the undisturbed soil water storage layer 8.
Wherein the rainwater penetration assisting device 9 is composed of the sponge layer 901 and the sponge layered structure 902; the sponge layer 901 is paved above the undisturbed soil water storage layer 8
The bottom end surface of the sponge layer 901 is fixedly connected with a plurality of groups of sponge layered structures 902 which are of an integrated structure, wherein the groups of sponge layered structures 902 are arranged at intervals in the front-back direction, and the groups of sponge layered structures 902 are not in contact with each other.
A plurality of groups of sponge layered structures 902 fixedly connected to the bottom end surface of the sponge layer 901 are buried inside the undisturbed soil water storage layer 8.
Wherein, among the rainwater infiltration auxiliary device 9 sponge layered structure 902 overall structure is similar with the plant roots structure, and is the diffusion form distribute in inside original state soil water-storage layer 8, so the rainwater can diffuse the infiltration rapidly and be in the original state soil water-storage layer 8, accelerate right the osmotic coefficient of original state soil water-storage layer 8, the quick infiltration of the rainwater of being convenient for strengthens planting the flood storage regulatory ability of shallow grass ditch to the rainwater.
Wherein, rainwater infiltration auxiliary device 9 top be provided with by vegetation layer 1001, vegetation planting layer 1002, first gravel layer 1003 and first geotechnological cloth filter layer 1004 constitute jointly cut dirty purification layer 10, and cut dirty purification layer 10 and be located two between the border sloping block 3.
Wherein the first geotextile filter layer 1004 is in contact with the sponge layer 901; the first gravel layer 1003 is laid on the first geotextile filter layer 1004, and performs a corresponding filtering function through the first geotextile filter layer 1004 and the first gravel layer 1003.
Wherein, there is one deck the vegetation planting layer 1002 above the first gravel layer 1003, and plant the one deck on the vegetation planting layer 1002 the vegetation layer 1001, via the vegetation layer 1001 and vegetation planting layer 1002 filter the big impurity via the flowing in the rainwater and block.
The specific use mode and function of the embodiment are as follows:
rainwater is gathered on the dirt intercepting and purifying layer 10, rainwater permeates into the vegetation layer 1001 and the vegetation planting layer 1002, large impurities flowing along with the rainwater permeate into the vegetation layer 1001 and the vegetation planting layer 1002 through the rainwater to be filtered and blocked, then the rainwater and part of soil in the vegetation planting layer 1002 flowing along with the rainwater penetrate through the first gravel layer 1003, the part of soil in the vegetation planting layer 1002 flowing along with the rainwater are filtered and blocked through the first gravel layer 1003, the rainwater penetrates through the first gravel layer 1003 and then contacts the first geotextile filter layer 1004, due to the characteristic of the material of the first geotextile filter layer 1004, the rainwater can permeate rapidly, while the part of soil in the vegetation planting layer 1002 remaining in the rainwater is filtered and blocked through the first geotextile filter layer 1004, due to the contact of the first geotextile filter layer 1004 and the rainwater permeation auxiliary device 9, the rainwater can permeate along the rainwater permeation auxiliary device 9 rapidly, the sponge layered structure 902 in the rainwater penetration assisting device 9 is similar to the plant root system structure in overall structure and is distributed inside the undisturbed soil water storage layer 8 in a diffusion manner, so rainwater can be quickly diffused and penetrated in the undisturbed soil water storage layer 8, along with continuous penetration of rainwater, the penetrated rainwater reaches the bottom of the undisturbed soil water storage layer 8 and contacts with the interception layer 11, the rainwater firstly passes through the second gravel layer 1101 to filter the soil in the undisturbed soil water storage layer 8 flowing along with the rainwater, then contacts the second geotextile filter layer 1102 to quickly penetrate, and then secondarily filters the soil in the undisturbed soil water storage layer 8 partially passing through the second gravel layer 110 along with the rainwater through the second geotextile filter layer 1102, and finally penetrates through the second geotextile filter layer 1102 to respectively flow into the overflow well 5 and then flow into the underground drain pipe 7 along the communication pipeline 6.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (1)
1. A plant shallow grass ditch for what sponge city has a dirty purification performance of cutting, its characterized in that: the shallow grass planting ditch with the functions of intercepting pollution and purifying for the sponge city comprises an undisturbed soil layer, side drainage curbs, an edge sloping block, a concrete reservoir main body, a reservoir, an overflow well, a communication pipeline, an underground drainage pipe, an undisturbed soil water storage layer, a rainwater infiltration auxiliary device, a sponge layer, a sponge layered structure, an intercepting and purifying layer, a vegetation planting layer, a first gravel layer, a first geotextile filtering layer, an intercepting layer, a second gravel layer and a second geotextile filtering layer; the soil on the top side of an undisturbed soil layer between the two side drainage road edge stones is provided with one edge sloping block in a bilateral symmetry manner, and the two edge sloping blocks are respectively attached to the adjacent side drainage road edge stones; the concrete reservoir main body is arranged in the undisturbed soil layer at the bottom of the two edge inclined blocks, and the reservoir is arranged in the concrete reservoir main body; the bottom of the concrete reservoir main body is connected with a plurality of groups of overflow units communicated with the reservoir at intervals in a front-back arrangement mode, and each group of overflow units consists of two bilaterally symmetrical overflow wells; the two overflow wells in each group of overflow units are communicated with each other through one communication pipeline, and the two overflow wells in each group of overflow units are respectively communicated with the adjacent underground drainage pipes through one communication pipeline; the bottom end of the inner wall of the reservoir is provided with the interception layer which is formed by the second gravel layer and the second geotextile filter layer; the second geotextile filter layer is positioned below and is contacted with the bottom end of the inner wall of the reservoir, and the size of the second geotextile filter layer is consistent with that of the bottom end of the inner wall of the reservoir; the second gravel layer is paved above the second geotextile filter layer; the inner wall of the reservoir is filled with the undisturbed soil reservoir layer from the interception layer to the opening end; the rainwater infiltration auxiliary device is arranged on the top side of the undisturbed soil water storage layer;
the rainwater penetration auxiliary device is composed of the sponge layer and the sponge layered structure; the sponge layer is paved above the undisturbed soil water storage layer;
the bottom end surface of the sponge layer is in a front-back interval arrangement shape and is fixedly connected with a plurality of groups of sponge layered structures which are integrated with the sponge layered structures, and the sponge layered structures of each group are not contacted with each other;
a plurality of groups of sponge layered structures fixedly connected with the bottom end face of the sponge layer are buried in the undisturbed soil water storage layer;
the whole structure of the sponge layered structure in the rainwater infiltration auxiliary device is similar to the structure of a plant root system and is distributed in the undisturbed soil water storage layer in a diffused manner;
the rainwater infiltration auxiliary device is characterized in that a sewage interception purification layer composed of the vegetation layer, the vegetation planting layer, a first gravel layer and a first geotextile filter layer is arranged above the rainwater infiltration auxiliary device, and the sewage interception purification layer is positioned between the two edge sloping blocks;
the first geotextile filter layer is contacted with the sponge layer; the first gravel layer is paved above the first geotextile filter layer;
one vegetation planting layer is laid above the first gravel layer, and one vegetation layer is planted on the vegetation planting layer.
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| CN201810825887.6A CN108915063B (en) | 2018-07-25 | 2018-07-25 | Shallow grass planting ditch with sewage intercepting and purifying functions for sponge city |
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| CN201810825887.6A CN108915063B (en) | 2018-07-25 | 2018-07-25 | Shallow grass planting ditch with sewage intercepting and purifying functions for sponge city |
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| CN108915063B true CN108915063B (en) | 2020-03-13 |
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| 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 |
| CN111705885B (en) * | 2020-06-23 | 2021-03-02 | 深圳市日昇生态科技股份有限公司 | Controllable slow flow sewage interception circulating structure based on sponge city construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5603587A (en) * | 1992-06-18 | 1997-02-18 | Hitachi, Ltd. | Drainage water pumping station and method for operating the same |
| CN202031005U (en) * | 2011-01-27 | 2011-11-09 | 上海市政交通设计研究院有限公司 | Ecological drainage channel |
| CN203307123U (en) * | 2013-06-18 | 2013-11-27 | 重庆大学 | Vegetated waterway system suitable for runoff diversion and filtration of sandy rainwater in mountainous city |
| CN103643612B (en) * | 2013-12-27 | 2016-12-07 | 深圳市建筑科学研究院股份有限公司 | Shallow grass ditch and the manufacture method of shallow grass ditch |
| CN105089142B (en) * | 2015-08-27 | 2017-05-10 | 天津大学 | Low elevation greenbelt rainwater regulation scheduling pool and distributed rainwater regulation scheduling pool system |
| CN205711615U (en) * | 2016-04-14 | 2016-11-23 | 泛亚景观设计（上海）有限公司 | Grass planting trench system |
| CN206298944U (en) * | 2016-12-26 | 2017-07-04 | 杨洁 | A kind of sponge urban ecology grass planting ditch |
| CN207553247U (en) * | 2017-12-06 | 2018-06-29 | 唐山学院 | Recessed greenery patches rainwater utilization and collection system |
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