CN114319536B - Intelligent sponge ecological buffer zone and construction method thereof - Google Patents
Intelligent sponge ecological buffer zone and construction method thereof Download PDFInfo
- Publication number
- CN114319536B CN114319536B CN202111577185.9A CN202111577185A CN114319536B CN 114319536 B CN114319536 B CN 114319536B CN 202111577185 A CN202111577185 A CN 202111577185A CN 114319536 B CN114319536 B CN 114319536B
- Authority
- CN
- China
- Prior art keywords
- area
- shrub
- purification
- planting
- grass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention provides a smart sponge ecological buffer zone and a construction method thereof, and relates to the technical field of sponge cities and municipal engineering; the intelligent sponge ecological buffer zone is arranged into a slope structure from top to bottom along the rainwater flowing direction and comprises a arbor area, a first shrub area, a shrub buffer area, a second shrub area, an energy dissipation area, a herb purification area, a grass planting ditch, a purification ditch, a water storage area and a plurality of intelligent facility installation grooves; in the flowing process, the rainwater respectively passes through plant belts such as arbors, shrubs, grasses and the like to form an ecological barrier, and the rainwater is purified under the combined action of facilities such as buffering, energy dissipation, interception and purification and the like; the invention realizes the combination of vegetation interception and sponge facilities, effectively exerts the functions of vegetation such as purification, permeation and stagnation storage and the like, has landscape effect, simultaneously has simpler plane construction, reduces the construction cost, reserves space for the construction of an intelligent platform and has obvious comprehensive effect.
Description
Technical Field
The invention relates to the technical field of sponge cities and municipal engineering, in particular to a smart sponge ecological buffer strip and a construction method thereof.
Background
With the advance of sponge city construction, various industries such as buildings, municipal administration, landscape and garden and the like develop and apply around the core, and various technologies are poor, and various problems are also accompanied.
Common rainwater treatment facilities comprise a rainwater garden, a rainwater wetland, a bioretention pond and the like, and the common point of the technologies is that the functions of purifying, detenting, storing and the like of rainwater are finally realized through the interaction between rainwater and filler, plants and microorganisms in the flowing process, so that the rainwater treatment facilities are widely applied at present. However, such a technique has an important disadvantage that a deeper tank body is required as a supporting body, and for some construction districts with lower topography or areas with poorer geology, the technical difficulty of the application of the technique is increased, and the cost is also multiplied. The biological buffer zone is a plant zone combined with vegetation built in a junction area of a river channel and land at first, is used for buffering connection among different media, is an application technology with a large area range, and is shallow in construction depth. In addition, with the proposal of the smart city construction concept, higher requirements are put on various constructions, and how to balance the relationship among various elements in the sponge city construction is a problem which needs to be considered urgently.
Disclosure of Invention
The invention aims to provide a smart sponge ecological buffer zone and a construction method thereof, which combine vegetation surface interception with sponge facility special interception, effectively play the functions of vegetation such as purification, permeation and stagnation retention and the like, improve the interception efficiency, have landscape effect, reduce foundation excavation to the greatest extent and reduce construction difficulty and cost.
In order to achieve the above purpose, the invention provides the following technical scheme: a smart sponge ecological buffer zone is provided with a slope structure from top to bottom along the rainwater flowing direction, wherein the slope structure comprises a arbor and grass area, a first shrub and grass area, a shrub and grass buffer area, a second shrub and grass area, an energy dissipation area, a grass purification area, a grass planting ditch, a purification ditch and a water storage area which are sequentially arranged along the rainwater flowing direction, and a plurality of smart facility installation grooves which are respectively arranged on the slope structure; green plants are planted in the arbor area, the first shrub area, the shrub buffer area and the second shrub area respectively and are used for filtering inflowing rainwater in sequence; the shrub and grass buffer area is provided with planting stalks which are raised relative to the slope surface structure and used for buffering inflow rainwater; the energy dissipation area is a groove chamber structure which is sunken towards the interior of the slope surface structure, and the interior of the groove chamber structure is filled with buffer fillers for reducing the kinetic energy of rainwater flowing on the slope surface structure and slowing down scouring; the grass purification area, the grass planting ditch and the purification ditch are used for purifying inflowing rainwater in sequence, and the water storage area is used for storing the filtered and purified rainwater; wisdom facility mounting groove is used for installing network connection and equips in the intelligence of wisdom platform, real-time supervision domatic structural rainwater information.
Furthermore, the arbor area is an arbor and herbaceous mixed planting area, and the length of the arbor area along the slope surface structure is 3-5 m; the arbor is one or more of weeping willow, metasequoia and mulberry, the planting density of the arbor is 1-2 trees/square, and the planting depth is 0.5-0.8 m; the herbaceous plants are one or more of zoysia japonica, bermuda grass and wild cattle grass, and the planting density of the herbaceous plants is 20-40 plants per square.
Further, the first shrub and grass buffer area are deep-rooted shrub plant planting areas, and the deep-rooted shrub plants are one or more of peony, camellia, loosestrife and cotton rose; the length of the first shrub area along the slope surface structure is 1.5-2 m, the planting density of deep-rooted shrub plants in the first shrub area is 5-10 plants/square, and the planting depth is 0.3-0.5 m; the length of the grass-irrigating buffer area along the slope surface structure is 0.4-0.6 m, deep-rooted shrub plants are planted on the planting stalks of the grass-irrigating buffer area in a single row, and herbaceous plants are planted around the planting stalks in a covering mode to prevent scouring.
Further, the second shrub and grass area is a shallow-rooted shrub plant planting area, and the length of the second shrub and grass area along the slope surface structure is 2-3 m; the shallow-rooted shrub plants are one or more of coral trees, palms, gardenias, Chinese flowering crabapples, rhododendrons and camellia, the planting density of the shallow-rooted shrub plants in the second shrub area is 8-15 plants/square, and the planting depth is 0.3-0.5 m.
Furthermore, the energy dissipation area is provided with a groove chamber structure with a circular arc-shaped section parallel to the rainwater flow direction, the circular arc-shaped groove chamber structure comprises a front buffer area and a rear buffer area which are symmetrically divided along the radial direction of the circular arc-shaped groove chamber structure, and the front buffer area is adjacent to the second grass irrigation area; the buffering filler in the front buffering area is a pebble filler, the buffering filler in the rear buffering area is a gravel filler, the particle size of the pebble filler is 20-40 mm, the particle size of the gravel filler is 8-15 mm, and the filling depth is 0.3 m.
Further, the herbaceous purification area is a herbaceous plant planting area, and the length of the herbaceous purification area along the slope surface structure is 4-6 m; the herbaceous plants are one or more of zoysia japonica, bermudagrass and buffalo grass, the planting density of the herbaceous plants on the planting soil of the herbaceous purification area is 40-50 plants/square, and the planting depth is 0.1-0.2 m; the planting soil of the herbaceous purification area is a mixture of river sand, water plant aluminum sludge dry particles and soil with the volume ratio of 4:1:5, and pollutants such as nitrogen and phosphorus in rainwater can be effectively reduced through the planting soil.
Furthermore, the grass planting ditch is a ditch structure sunken towards the interior of the slope surface structure, grass planting with the density of 20-40 plants/square is planted in the ditch structure, the gradient of a water inlet of the ditch structure is 0.4-0.6, the gradient of a water outlet of the ditch structure is less than 0.3, the depth of the ditch structure is 0.2m, and the grass planting ditch can use modularization and is convenient for construction and installation.
Furthermore, the purification ditch and the water storage area are sequentially arranged at the tail end of the slope structure, and the water storage area is connected with the purification ditch; the purification ditch is of a square tank chamber structure along the horizontal section, purification filler is filled in the square tank chamber structure, the purification filler comprises a gravel filler surface layer, a ceramsite filter layer and a pebble cushion layer from top to bottom, the particle size of the gravel filler on the gravel filler surface layer is 15-25 mm, the filling depth is 0.1m, the particle size of the ceramsite filler on the ceramsite filter layer is 10-15 mm, the filling depth is 0.2m, the particle size of the pebble filler on the pebble cushion layer is 20-30 mm, and the filling depth is 0.1 m; the gravel packing surface layer is arranged in an L shape, a vacant area on one side, close to the water storage area, of the gravel packing surface layer in the L shape is filled with a soil layer, and the upper end surface of the soil layer is flush with the upper end surface of the gravel packing surface layer in the L shape;
the method comprises the steps that the purification ditch is defined to be in the length direction of the purification ditch along the arrangement direction perpendicular to the rainwater flowing direction, the thickness of the pebble cushion layer in the up-and-down direction is gradually increased from the two ends of the purification ditch in the length direction to the middle of the purification ditch in the length direction, a drainage pipeline is arranged at the bottom of the pebble cushion layer in the middle of the purification ditch in the length direction, and the drainage pipeline is communicated to an intelligent sponge ecological buffer belt external water storage device or a municipal pipeline.
Furthermore, the energy dissipation area is provided with a first intelligent facility installation groove, the purification ditch is provided with a second intelligent facility installation groove, the water storage area is provided with a third intelligent facility installation groove, the first intelligent facility installation groove and the second intelligent facility installation groove are respectively used for installing a real-time water quality monitoring transmitter, and the third intelligent facility installation groove is used for installing a water storage area water quantity monitor; the real-time water quality monitoring transmitter is preset with a water quality threshold value and is used for monitoring the quality of rainwater collected at the upstream in real time and automatically sending early warning information to the intelligent platform when the monitored water quality exceeds the preset water quality threshold value; the water storage area water quantity monitor is used for monitoring the water storage area water quantity in real time.
The invention also provides a construction method of the intelligent sponge ecological buffer zone, which comprises the following steps:
the method comprises the following steps: foundation pretreatment, namely digging or filling according to design requirements, wherein the compaction degree is controlled to be not lower than 95% during filling;
step two: after the foundation treatment is finished, performing groove construction, including an energy dissipation area and a purification groove, wherein the energy dissipation area is firstly constructed, and then the purification groove is constructed, and the compaction degree of the groove bottoms of the energy dissipation area and the purification groove meets the requirement control according to the requirements of the intelligent sponge ecological buffer zone;
step three: after the construction of the groove is finished and the groove is checked to be qualified, the filler in the groove is laid in the energy dissipation area and the purification groove, and the filler is laid in layers to ensure that each layer is compact;
step four: the construction of the surface planting soil of the slope structure takes an energy dissipation area as a boundary, the upper half part of the slope structure is firstly constructed, the upper half part comprises a arbor and grass area, a first shrub and grass area and a second shrub and grass area, and then the lower half part of the slope structure comprises a grass purification area and a grass planting ditch; wherein, the soil of the arbor area, the first shrub area, the shrub buffer area, the second shrub area, the herb purification area and the grass planting ditch does not contain silt, and the water content is 15-20% after the pavement is finished; finally, constructing the planting stalks in the grass-irrigating buffer area, and covering the planted grass in time after the construction is finished to prevent scouring;
step five: after the surface planting soil construction is finished, planting plants, wherein the planting mode of the plants comprises transplanting; and after the plants are transplanted, the plants are maintained to ensure the survival rate of the plants and ensure that the density of the plants meets the preset requirement in a replanting mode.
According to the technical scheme, the intelligent sponge ecological buffer strip and the construction method thereof provided by the invention have the following beneficial effects:
the invention discloses a smart sponge ecological buffer zone and a construction method thereof, wherein the smart sponge ecological buffer zone is arranged into a slope structure from top to bottom along the flowing direction of rainwater and comprises a arbor area, a first shrub area, a shrub buffer area, a second shrub area, an energy dissipation area, a herbal purification area, a grass planting ditch, a purification ditch, a water storage area and a plurality of smart facility installation grooves; due to the fact that the arbor, the shrub and the grass are staggered in the ecological buffer zone, rainwater respectively passes through arbor, shrub, grass and other plant zones to form an ecological barrier in the flowing process, different types of plants are arranged in a targeted mode, silt is intercepted in the surface layer flowing and intercepting and permeating technology and the energy dissipation area, and grass planting ditch filtering is matched, so that multi-stage application of the plants, the energy dissipation area, the grass planting ditch and the purification ditch is achieved; the invention converts the three-dimensional treatment technology into the planar treatment technology, develops the pollutant reduction technology with a complex structure on a plane, mainly filters and absorbs the pollutants on the plane, and greatly reduces the construction difficulty. Moreover, the construction idea of the smart city is implanted in the application, and the environment can be realized for the construction of the smart sponge city platform.
According to the intelligent sponge ecological buffer zone, an ecological barrier is formed by arbor, shrub and grass, and a solid sponge rainwater treatment measure is stretched into a plane-like treatment technology by combining core concepts of seepage, stagnation, storage and purification in sponge urban construction, so that rainwater passes through a longer flow path, the detention time is longer, and the purification effect is better. On the basis of rainwater buffering, the ecological buffering area not only realizes rainwater treatment, and crisscross arbor, the bush of arranging, grass are crisscross to have, and the prominent view effect that is better, and the plane construction is simpler simultaneously, greatly reduced construction cost, and for wisdom platform construction reserved space, the composite effect is showing.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a side view of the present invention;
FIG. 2 is a plan view of the present invention;
FIG. 3 is a structural diagram of the energy dissipation groove design of the present invention;
FIG. 4 is a side view of the purification ditch according to the present invention;
FIG. 5 is a front view of the structure of the purification ditch of the present invention.
In the figure, the specific meaning of each mark is as follows:
1-arbor area; 2-a first grass irrigation area; 3-a shrub and grass buffer area; 4-a second grass irrigation area; 5-energy dissipation area; 51-front buffer; 52-rear buffer; 53-a first smart facility installation slot; 6-a herbal clean-up zone; 7-planting grass furrows; 8-purifying the ditch; 81-gravel pack facing; 82-a second smart facility mounting slot; 83-soil layer; 84-a ceramsite filtering layer; 85-pebble cushion coat; 86-a drainage pipeline; 9-water storage area; 91-third smart facilities installation slot.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Similarly, the singular forms "a," "an," or "the" do not denote a limitation of quantity, but rather denote the presence of at least one, unless the context clearly dictates otherwise. The terms "comprises" or "comprising," and the like, mean that the elements or components listed in the preceding list of elements or components include the features, integers, steps, operations, elements and/or components listed in the following list of elements or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may also be changed accordingly.
Based on the technologies of rainwater gardens, rainwater wetlands, biological detention ponds and the like which are commonly adopted in the prior art, a deeper pond body is required to be used as a bearing body when the device is used, and the application difficulty and the cost are greatly multiplied for some building districts with lower topography or regions with poorer geology; the invention aims to provide a smart sponge ecological buffer zone which can be applied to a building district with low terrain or a region with poor geology and realizes the functions of rainwater purification, detention, storage and the like and a construction method thereof.
The invention will be described in detail with reference to the embodiments shown in the drawings.
The intelligent sponge ecological buffer strip shown by combining the figures 1 and 2 is provided with a slope structure from top to bottom along the rainwater flow direction, wherein the slope structure comprises an arbor grass region 1, a first shrub grass region 2, a shrub grass buffer region 3, a second shrub grass region 4, an energy dissipation region 5, a herb purification region 6, a grass planting ditch 7, a purification ditch 8 and a water storage region 9 which are sequentially arranged along the rainwater flow direction, and a plurality of intelligent facility mounting grooves which are respectively arranged on the slope structure, wherein rainwater sequentially passes through various functional regions on the slope structure, the arbor grass region 1, the first shrub grass region 2, the shrub grass buffer region 3 and the second shrub grass region 4 are respectively planted with green plants for sequentially filtering inflow rainwater, and the shrub grass buffer region 3 is provided with a planting stem which is raised relative to the slope structure and is used for buffering inflow rainwater; the energy dissipation area 5 is a groove chamber structure which is sunken towards the interior of the slope surface structure, and buffering fillers are filled in the groove chamber structure and are used for reducing the kinetic energy of rainwater flowing on the slope surface structure and slowing down the erosion of the rainwater on the intelligent sponge ecological buffer belt; herbaceous purifying area 6, grass planting ditch 7, purification ditch 8 purify the rainwater of flowing into in proper order, and retaining area 9 is used for storing the rainwater after the filtration purifies, and wisdom facility mounting groove is used for installing network connection and equips in the intelligence of wisdom platform, and intelligence is equipped and is used for the domatic structural rainwater information of real-time supervision.
Rainwater firstly reaches an arbor area 1, the arbor area 1 is an arbor and herb mixed planting area, deep roots of arbors are used for fixing soil, the integral structure of a gentle slope is guaranteed, and herbaceous plants are planted on the surface of the arbor area and used for filtering the rainwater; the length of the arbor area 1 along the slope surface structure is 3-5 m; the planted arbor is one or more of weeping willow, metasequoia and mulberry, the herb is one or more of zoysia japonica, bermudagrass and buffalo grass, the planting density of the arbor in the arbor area 1 is 1-2/square, and the planting depth is 0.5-0.8 m; the planting density of the herbaceous plants is 20-40 plants per square, and the planting depth is 0.1-0.2 m. In specific implementation, the weeping willow and the metasequoia planted on the arbor are mixed, the planting density is 2 plants/square, and the planting depth is 0.5 m; zoysia japonica and bermudagrass are planted in the matching of the herbs, the planting density is 25 plants/square, and the planting depth is 0.4 m.
The first shrub and grass area 2, the shrub and grass buffer area 3 and the second shrub and grass area 4 are used for planting shrubs and grass plants of different types, lengths and densities respectively, wherein the shrub and grass buffer area 3 is used for buffering water coming from the upper part, and the requirements on the planting density and the planting environment of the plant plants are high; therefore, the first shrub area 2 and the shrub buffer area 3 are both set as deep-rooted shrub plant planting areas, and the deep-rooted shrub plants are one or more of peony, camellia, loosestrife and cotton rose; the length of the first shrub area 2 along the slope surface structure is 1.5-2 m, the planting density of deep-rooted shrub plants in the first shrub area 2 is 5-10 plants/square, and the planting depth is 0.3-0.5 m; the length of the shrub buffer area 3 along the slope surface structure is 0.4-0.6 m, and deep-rooted shrub plants are planted on the planting peduncles of the shrub buffer area 3 in a single row; the second shrub and grass area 4 is a shallow root shrub plant planting area, and the length of the second shrub and grass area 4 along the slope surface structure is 2-3 m; the shallow-rooted shrub plant can be one or more of coral tree, palm, gardenia, Chinese flowering crabapple, azalea and camellia, the planting density of the shallow-rooted shrub plant in the second shrub area 4 is 8-15 plants/square, and the planting depth is 0.3-0.5 m.
In specific implementation, the length of the first grass irrigation area 2 along the slope surface structure is 1.5m, two deep-rooted shrubs of peony and camellia are planted, the planting density is 10 plants/square, and the planting depth is 0.4 m; the shrub and grass buffer area 3 is arranged at the lower part of the slope surface of the first shrub and grass area 2, the length of the shrub and grass buffer area 3 along the slope surface structure is 0.5m, two deep-rooted shrubs of the loosestrife and the cotton rose are planted, a row of plants are planted on the planted stems, the plants are closely planted without gaps, and the planted stem soil needs to be tightly compacted to bear enough impact; and the second shrub area 4 is planted with three shallow root shrub plants of coral tree, palm and gardenia along the slope surface structure with the length of 2-3 m, the planting density of 10 shrub plants per square and the planting depth of 0.3 m.
Referring to fig. 3, the energy dissipation zone 5 is provided with a chamber structure with a circular arc-shaped cross section along the direction parallel to the rainwater flow direction, is arranged below the middle part of the whole buffer zone, and is used for settling silt, reducing the kinetic energy of rainwater flowing on the slope surface and slowing down the erosion; to achieve the above object, the circular arc-shaped chamber structure comprises a front buffer area 51 and a rear buffer area 52 which are symmetrically divided along the radial direction of the circular arc-shaped chamber structure, wherein the front buffer area 51 is adjacent to the second grass irrigation area 4, so that the front buffer area contacts rainwater firstly, and the rear buffer area 52 contacts rainwater later; the buffering filler in the front buffering area 51 is pebble filler, the buffering filler in the rear buffering area 52 is gravel filler, the particle size of the pebble filler is 20-40 mm, the particle size of the gravel filler is 8-15 mm, and the depth of the gravel filler is 0.3 m. In specific implementation, the length of the front buffer area 51 along the slope surface structure is 0.4m, the particle size of the gravel filler is 25-30 mm, the length of the rear buffer area 52 along the slope surface structure is 0.4m, and the particle size of the gravel filler is 10-15 mm.
The herbaceous plant purification area 6 is a herbaceous plant planting area, and the length of the herbaceous plant purification area 6 along the slope structure is 4-6 m; the planted herbaceous plants are one or more of zoysia japonica, bermudagrass and buffalo grass, the planting density of the herbaceous plants on the planting soil of the herbaceous purification area 6 is 40-50 plants/square, and the planting depth is 0.1-0.2 m; the planting soil of the herbaceous purification area 6 is a mixture of river sand, water plant aluminum sludge dry particles and soil in a volume ratio of 4:1: 5. High density herbaceous plant is planted to 6 grass purification districts, carries out the aim at of strict demand to planting soil proportion, makes planting soil have higher permeability to make 6 filtration and the purifying effect to the rainwater of grass purification district obtain promoting. In the specific implementation, the length of the herbaceous purification area 6 along the slope surface structure is 5m, the zoysia japonica and the wild cattle grass are selected and planted in a matched mode, the planting density is 50 plants/square, and the planting depth is 0.1 m.
Referring to fig. 4 and 5, the purification trench 8 and the impoundment area 9 are sequentially arranged at the tail end of the slope structure, and the impoundment area 9 is connected to the purification trench 8; the purification ditch 8 is arranged to be a square tank chamber structure along the horizontal section, the inside of the square tank chamber structure is filled with purification filler, the main purpose is to perform strengthening treatment and distribute terminal rainwater through the filling filler, and the internal structure of the purification ditch is similar to a shallow biological detention pool. The purification filler comprises a gravel filler surface layer 81, a ceramsite filtering layer 84 and a gravel cushion layer 85 from top to bottom, the particle size of the gravel filler surface layer 1 is 15-25 mm, and the filling depth is 0.1 m; the particle size of the filler ceramsite in the ceramsite filter layer 84 is 10-15 mm, and the filling depth is 0.2 m; the particle diameter of filling pebbles of the pebble cushion layer 85 is 20-30 mm, and the filling depth is 0.1 m; the gravel packing surface layer 81 is L-shaped, the vacant area on one side of the L-shaped gravel packing surface layer 81 close to the water storage area 9 is filled with a soil layer 83, and the upper end surface of the soil layer 83 is flush with the upper end surface of the L-shaped gravel packing surface layer 81.
The arrangement direction of the purification ditch 8 along the direction perpendicular to the rainwater flow direction is defined as the length direction of the purification ditch 8, the thickness of the pebble cushion 85 in the up-down direction gradually increases from the two ends of the length direction of the purification ditch 8 to the middle of the length direction of the purification ditch 8, a drainage pipe 86 is arranged at the bottom of the pebble cushion 85 along the middle of the length direction of the purification ditch 8, and the drainage pipe 86 is communicated to an external water storage device or a municipal pipeline of the intelligent sponge ecological buffer zone for water storage or drainage. In specific implementation, the width of the purification ditch 8 along the horizontal direction is 0.6m, the depth of the purification ditch along the vertical direction is 0.6m, and the drainage pipeline 86 is directly connected into the water storage area 9.
In the embodiment shown in the attached drawings, the water storage area 9 is directly communicated with the outside by adopting a finished product water storage assembly module to realize water storage.
In order to realize the construction of the smart sponge city, smart sponge ecological buffer zones can be installed or reserved according to design requirements during construction, for example, in the figure, the energy dissipation zone 5 is provided with a first smart facility installation groove 53, and the first smart facility installation groove 53 is positioned on the side of the rear buffer zone 52 close to the herbal purification zone 6; the purification ditch 8 is provided with a second intelligent facility installation groove 82, the water storage area 9 is provided with a third intelligent facility installation groove 91, the first intelligent facility installation groove 53 and the second intelligent facility installation groove 82 are respectively used for installing a real-time water quality monitoring transmitter, and the third intelligent facility installation groove 91 is used for installing a water storage area water quantity monitor; the real-time water quality monitoring transmitter is preset with a water quality threshold value and is used for monitoring the quality of rainwater collected at the upstream in real time and automatically sending early warning information to the intelligent platform when the monitored water quality exceeds the preset water quality threshold value; the intelligent platform can judge the reason of the problem of the buffer zone according to the information and maintain in time; the water storage area water quantity monitor is used for monitoring the water storage area 9 water quantity in real time.
An embodiment of the invention provides a construction method of an intelligent sponge ecological buffer zone with the structure, which comprises the following steps:
the method comprises the following steps: foundation pretreatment, namely digging or filling according to design requirements, wherein the compaction degree is controlled to be not lower than 95% during filling;
step two: after the foundation treatment is finished, groove construction is carried out, wherein the groove construction comprises an energy dissipation area 5 and a purification groove 8, the energy dissipation area 5 is firstly constructed, then the purification groove 8 is constructed, and the compactness of the groove bottoms of the energy dissipation area 5 and the purification groove 8 meets the requirement of control according to the intelligent sponge ecological buffer zone;
step three: after the construction of the groove is finished and the groove is accepted, the energy dissipation area 5 and the purification ditch 8 are paved with the filling materials in the groove, and the filling materials are paved in layers to ensure that each layer is compact;
step four: the construction of the surface planting soil of the slope structure takes an energy dissipation area 5 as a boundary, the construction of the upper half part of the slope structure is firstly carried out, the construction comprises an arbor area 1, a first shrub area 2 and a second shrub area 4, and then the construction of the lower half part of the slope structure is carried out, and the construction comprises a herb purification area 6 and a grass planting ditch 7; wherein, the soil of the arbor area 1, the first shrub area 2, the shrub buffer area 3, the second shrub area 4, the herb purifying area 6 and the grass planting ditch 7 does not contain silt, and the water content is 15-20% after the pavement is finished; finally, constructing a 3-planting stem in the grass irrigation buffer area;
step five: after the surface planting soil construction is finished, planting plants in a planting mode including transplanting; and after the plants are transplanted, the plants are maintained to ensure the survival rate of the plants and ensure that the density of the plants meets the preset requirement in a replanting mode.
When the whole buffer zone is integrally implemented, the energy dissipation area 5 is used as a boundary, the soil content of the surface planting soil of each functional area in front of the energy dissipation area 5 accounts for more than 90%, the construction method has common soil permeability, the soil content of the planting layer behind the energy dissipation area 5 is reduced, and the permeability is enhanced.
The invention discloses an intelligent sponge ecological buffer zone and a construction method thereof, which combine vegetation surface layer interception with sponge facility special interception, form an ecological barrier by using trees, shrubs and grasses, combine the core concepts of seepage, stagnation, storage and purification in sponge urban construction, stretch a three-dimensional sponge rainwater treatment measure into a plane-like treatment technology, and ensure that rainwater passes through a longer flow path, has longer detention time and better purification effect. On the basis of rainwater buffering, the ecological buffering area not only realizes rainwater treatment, and crisscross arbor, the bush of arranging, grass are crisscross to have, and the prominent view effect that is better, and the plane construction is simpler simultaneously, greatly reduced construction cost, and builds with the wisdom platform, and jointly use, and whole functional strong.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (8)
1. A smart sponge ecological buffer zone is characterized in that the smart sponge ecological buffer zone is a slope structure from top to bottom along a rainwater flowing direction, and the slope structure comprises a arbor and grass area, a first shrub and grass area, a shrub and grass buffer area, a second shrub and grass area, an energy dissipation area, a herb purification area, a grass planting ditch, a purification ditch and a water storage area which are sequentially arranged along the rainwater flowing direction, and a plurality of smart facility installation grooves which are respectively formed in the slope structure; green plants are planted in the arbor area, the first shrub area, the shrub buffer area and the second shrub area respectively and are used for filtering inflowing rainwater in sequence; the shrub and grass buffer area is provided with planting stalks which are raised relative to the slope surface structure and used for buffering inflow rainwater; the energy dissipation area is a groove chamber structure which is sunken towards the interior of the slope surface structure, and the interior of the groove chamber structure is filled with buffer fillers for reducing the kinetic energy of rainwater flowing on the slope surface structure and slowing down scouring; the herbaceous purification area, the grass planting ditch and the purification ditch sequentially purify inflow rainwater, and the water storage area is used for storing the filtered and purified rainwater; the intelligent facility mounting groove is used for mounting intelligent equipment which is connected with the intelligent platform through a network, and the intelligent equipment is used for monitoring rainwater information on a slope surface structure in real time;
the length of the grass irrigation buffer area along the slope surface structure is 0.4-0.6 m;
the grass planting ditch is of a ditch structure which is sunken towards the slope structure, 20-40 plants per square are planted in the ditch structure, the gradient of a water inlet of the ditch structure is 0.4-0.6, the gradient of a water outlet of the ditch structure is less than 0.3, and the depth of the ditch structure is 0.2 m;
the energy dissipation area is provided with a first intelligent facility installation groove, the purification ditch is provided with a second intelligent facility installation groove, the water storage area is provided with a third intelligent facility installation groove, the first intelligent facility installation groove and the second intelligent facility installation groove are respectively used for installing a real-time water quality monitoring emitter, and the third intelligent facility installation groove is used for installing a water storage area water quantity monitor; the real-time water quality monitoring transmitter is preset with a water quality threshold value and is used for monitoring the quality of rainwater collected at the upstream in real time and automatically sending early warning information to the intelligent platform when the monitored water quality exceeds the preset water quality threshold value; the water storage area water quantity monitor is used for monitoring the water storage area water quantity in real time.
2. The ecological buffering area of intelligent sponge as claimed in claim 1, wherein the arbor area is a mixed arbor and herb area, and the length of arbor area along the slope surface structure is 3-5 m; the arbor is one or more of weeping willow, metasequoia and mulberry, the planting density of the arbor is 1-2/square, and the planting depth is 0.5-0.8 m; the herbaceous plants are one or more of zoysia japonica, bermuda grass and wild cattle grass, the planting density of the herbaceous plants is 20-40 plants per square, and the planting depth is 0.1-0.2 m.
3. The ecological buffer zone of smart sponge as claimed in claim 1, wherein the first shrub and grass buffer zone is a deep-rooted shrub plant growing zone, and the deep-rooted shrub plant is one or more of peony, camellia, loosestrife and cotton rose; the length of the first shrub area along the slope surface structure is 1.5-2 m, the planting density of deep-rooted shrub plants in the first shrub area is 5-10 plants/square, and the planting depth is 0.3-0.5 m; and planting deep-rooted shrub plants on the planting peduncles of the shrub buffer area in a single row.
4. The ecological buffer zone of wisdom sponge of claim 1, wherein the second shrub area is a shallow root shrub plant growing area, the length of the second shrub area along the slope structure is 2-3 m; the shallow-rooted shrub plants are one or more of coral trees, palms, gardenias, Chinese flowering crabapples, rhododendrons and camellia, the planting density of the shallow-rooted shrub plants in the second shrub area is 8-15 plants/square, and the planting depth is 0.3-0.5 m.
5. The ecological buffer zone of wisdom sponge of claim 1, wherein, the energy dissipation district sets up along being on a parallel with the rainwater flow direction cross-section be circular arc cell structure, the circular arc cell structure includes along the radial symmetry division anterior buffer zone of circular arc cell structure and rear portion buffer zone, anterior buffer zone borders on the second grass planting district; the buffering filler in the front buffering area is a pebble filler, the buffering filler in the rear buffering area is a gravel filler, the particle size of the pebble filler is 20-40 mm, the particle size of the gravel filler is 8-15 mm, and the filling depth is 0.3 m.
6. The intelligent ecological sponge buffer strip as claimed in claim 1, wherein the herbal purification area is a herbal growing area, and the length of the herbal purification area along the slope surface structure is 4-6 m; the herbaceous plants are one or more of zoysia japonica, bermuda grass and wild cattle grass, the planting density of the herbaceous plants on the planting soil of the herbaceous purification area is 40-50 plants/square, and the planting depth is 0.1-0.2 m; the planting soil of the herbaceous purification area is a mixture of river sand, water plant aluminum sludge dry particles and soil, wherein the volume ratio of the river sand to the water plant aluminum sludge dry particles to the soil is 4:1: 5.
7. The ecological buffering area of wisdom sponge of claim 1, wherein, the purification ditch and impounded area set up in proper order at the tail end of the sloping surface structure, impounded area links to the purification ditch; the purification ditch is of a square groove chamber structure along the horizontal section, purification filler is filled in the square groove chamber structure, the purification filler comprises a gravel filler surface layer, a ceramsite filter layer and a pebble cushion layer from top to bottom, the particle size of the gravel filler on the gravel filler surface layer is 15-25 mm, and the filling depth is 0.1 m; the particle size of the filler ceramsite in the ceramsite filter layer is 10-15 mm, and the filling depth is 0.1 m; the particle diameter of filling pebbles of the pebble cushion layer is 20-30 mm, and the filling depth is 0.1 m; the gravel packing surface layer is arranged in an L shape, a vacant area on one side, close to the water storage area, of the gravel packing surface layer in the L shape is filled with a soil layer, and the upper end surface of the soil layer is flush with the upper end surface of the gravel packing surface layer in the L shape;
the method comprises the steps that the purification ditch is defined to be in the length direction of the purification ditch along the arrangement direction perpendicular to the rainwater flowing direction, the thickness of the pebble cushion layer in the up-and-down direction is gradually increased from the two ends of the purification ditch in the length direction to the middle of the purification ditch in the length direction, a drainage pipeline is arranged at the bottom of the pebble cushion layer in the middle of the purification ditch in the length direction, and the drainage pipeline is communicated to an intelligent sponge ecological buffer belt external water storage device or a municipal pipeline.
8. A construction method of the intelligent sponge ecological buffer zone based on any one of claims 1 to 7 is characterized by comprising the following steps:
the method comprises the following steps: pretreating a foundation, digging or filling according to design requirements, wherein the compaction degree is controlled to be not lower than 95% during filling;
step two: after the foundation treatment is finished, performing groove construction, including an energy dissipation area and a purification groove, wherein the energy dissipation area is firstly constructed, and then the purification groove is constructed, and the compaction degree of the groove bottoms of the energy dissipation area and the purification groove meets the requirement control according to the requirements of the intelligent sponge ecological buffer zone;
step three: after the construction of the groove is finished and the groove is checked to be qualified, the filler in the groove is laid in the energy dissipation area and the purification groove, and the filler is laid in layers to ensure that each layer is compact;
step four: the construction of the surface planting soil of the slope structure takes an energy dissipation area as a boundary, the upper half part of the slope structure is firstly constructed, the upper half part comprises a arbor and grass area, a first shrub and grass area and a second shrub and grass area, and then the lower half part of the slope structure comprises a grass purification area and a grass planting ditch; wherein, the soil of the arbor area, the first shrub area, the shrub buffer area, the second shrub area, the herb purifying area and the grass planting ditch does not contain silt, and the water content is 15-20 percent after the pavement is finished; finally, the construction of planting stalks in the grass-irrigating buffer area is carried out, and the planted stalks are covered in time after the construction is finished, so that the scouring is prevented;
step five: after the surface planting soil construction is finished, planting plants in a planting mode including transplanting; and after the plants are transplanted, the plants are maintained to ensure the survival rate of the plants and ensure that the density of the plants meets the preset requirement in a replanting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111577185.9A CN114319536B (en) | 2021-12-22 | 2021-12-22 | Intelligent sponge ecological buffer zone and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111577185.9A CN114319536B (en) | 2021-12-22 | 2021-12-22 | Intelligent sponge ecological buffer zone and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114319536A CN114319536A (en) | 2022-04-12 |
| CN114319536B true CN114319536B (en) | 2022-08-26 |
Family
ID=81054773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111577185.9A Active CN114319536B (en) | 2021-12-22 | 2021-12-22 | Intelligent sponge ecological buffer zone and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114319536B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117323706A (en) * | 2023-12-01 | 2024-01-02 | 山东电力建设第三工程有限公司 | Construction method of double-medium gravity type filter tank of large-scale sea water desalination water plant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249416A (en) * | 2011-05-06 | 2011-11-23 | 北京锡兰石环境工程技术开发有限公司 | Method for ecologically reconstructing lakeshore buffer zone |
| CN107882149A (en) * | 2017-12-14 | 2018-04-06 | 湖南大辰环保科技有限公司 | Sponge urban road storm-collector system constituting method |
| CN108729326A (en) * | 2018-07-16 | 2018-11-02 | 中国建筑第八工程局有限公司 | Self-purification drainage system for the strand highway construction of sponge city |
| CN111333280A (en) * | 2020-04-22 | 2020-06-26 | 江西省水土保持科学研究院 | Compound nearly nature improvement river bank ecological buffer zone |
-
2021
- 2021-12-22 CN CN202111577185.9A patent/CN114319536B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249416A (en) * | 2011-05-06 | 2011-11-23 | 北京锡兰石环境工程技术开发有限公司 | Method for ecologically reconstructing lakeshore buffer zone |
| CN107882149A (en) * | 2017-12-14 | 2018-04-06 | 湖南大辰环保科技有限公司 | Sponge urban road storm-collector system constituting method |
| CN108729326A (en) * | 2018-07-16 | 2018-11-02 | 中国建筑第八工程局有限公司 | Self-purification drainage system for the strand highway construction of sponge city |
| CN111333280A (en) * | 2020-04-22 | 2020-06-26 | 江西省水土保持科学研究院 | Compound nearly nature improvement river bank ecological buffer zone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114319536A (en) | 2022-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20190047888A1 (en) | Tail water decentralized treatment and drainage system of sewage treatment plant | |
| CN103215920B (en) | Sectored multi-step ecological buffer revetment system | |
| CN103588303B (en) | Ecological check dam prevention and control system for three gorges reservoir region hilly land ravine agricultural non-point source pollution | |
| CN103306294B (en) | A kind of intermountain prevents the collection rain cleaning system of rain drop erosion soil erosion | |
| CN112358053A (en) | Composite ecological treatment method for intercepting farmland drainage pollutants | |
| CN106365320A (en) | Drained water recycling and nitrogen and phosphorus cascaded percolation, blocking and removal system for paddy field on southern gentle slope land and application method of system | |
| CN102926362B (en) | Pollution control and emission reduction method for farmland drainage | |
| CN114319536B (en) | Intelligent sponge ecological buffer zone and construction method thereof | |
| CN111333197B (en) | Ecological restoration method for low-water river | |
| CN203080471U (en) | Fan-shaped multi-step type ecological buffering type bank protection system | |
| CN112323717A (en) | Water system communication system and implementation method thereof | |
| CN113979599B (en) | Multi-interface gradient treatment method for mountain-type deepwater scenery and lake | |
| CN111919621A (en) | Shade tree pool structure based on cold region habitat restoration and manufacturing method | |
| CN108298702A (en) | A kind of tea place concentration development zone runoff treatment system | |
| CN113354093A (en) | River channel restoration method by coupling ecological revetment and aquatic plants | |
| CN112761103A (en) | Farmland non-point source catchment small circulation ecological management method and system | |
| CN108467120A (en) | A kind of tea place concentration development zone runoff treatment method | |
| CN111622189A (en) | Novel ecological ditch system | |
| CN218478616U (en) | Water quality purification system for farmland ecological ditch | |
| CN111779007A (en) | Highway slope greening structure | |
| CN208200532U (en) | A kind of tea place concentration development zone runoff treatment system | |
| CN212358227U (en) | Novel ecological ditch system | |
| CN214401626U (en) | Water system communication system | |
| CN113374026A (en) | Southwest hilly area sloping field area ditch rainwater is collected and is recycled system | |
| CN213952092U (en) | Cascaded soil and water conservation ecological slope protection structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |