CN216195233U - Concave ecological greenbelt structure - Google Patents

Abstract

The utility model discloses a concave ecological green land structure, which comprises a catchment gentle slope, a water filtering side wall and a water collecting pool bottom; the catchment gentle slope position is held the eminence, and the pond bottom of gathering water is located the lowest in greenery patches, and the bottom is leveled, and the drainage lateral wall is located catchment gentle slope bottom of the slope and gathers water between the pond edge, plays the joint support effect to catchment gentle slope bottom of the slope and the sunken slot that forms of pond edge. The concave greenbelt structure provided by the utility model is designed based on the sponge city construction principle, realizes the functions of intercepting and storing water, and preventing stagnant water and waterlogging of the urban greenbelts on the premise of ensuring the greenbelt rate of urban gardens, and can add a certain garden vitality to the cities, thereby achieving the effects of adding landscapes, supplementing greenbelts and improving flowers.

Description

Concave ecological greenbelt structure

Technical Field

The utility model relates to a concave ecological greenbelt structure, and belongs to the technical field of urban garden landscape and ecological environment construction.

Background

Along with the rapid development of modern economy, rapid urbanization leads to the rapid increase of the area of the urban impervious underlayment surface, the continuous reduction of the area of the pervious underlayment surface such as greenbelt and the like, so that the hydrologic cycle of the city changes, the characteristics of the urban rainfall runoff change, and the challenges are brought to the utilization of urban water resources and the flood control and drainage. The traditional urban waterlogging prevention and control concept mainly takes 'drainage', the rainwater infiltration capacity is sharply reduced along with the increase of the urban impervious area, the urban surface runoff is increased, and the defects are increasingly shown. When heavy rainfall intensity and continuous rainfall occur, the traditional urban drainage system becomes too heavy, and urban waterlogging events occur frequently, so that serious waterlogging disasters and negative social influences are caused.

Particularly, under the conditions of large urban population density and large building density, the construction of large-scale reservoirs, rainwater utilization facilities and large-scale greenbelts is impossible, and the limited storage and seepage potential of the greenbelts in urban garden construction should be fully exerted. At present, the investment amount for constructing the concave greenbelt is small, the maintenance workload is small, the popularization area amount is large, the urban rainwater runoff reduction effect is high, and the method is recommended to be widely adopted in residential districts, enterprises and public institutions and municipal greenbelts. However, due to the short time and insufficient prior experience, the specific technical details of the recessed green land construction are blindly provided, and some technical references with certain operability are urgently waited for.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in view of the prior art, the utility model provides a concave ecological green land structure.

The technical scheme is as follows: the concave ecological green land structure comprises a catchment gentle slope, a water filtering side wall and a water collecting pool bottom; the catchment gentle slope is located at a high position; the bottom of the water collecting tank is positioned at the lowest part of the green land, and the bottom is flat; the water filtering side wall is arranged between the bottom end of the catchment gentle slope and the bottom edge of the water collecting pool; and the joint of the water filtering side wall and the bottom edge of the water collecting tank is concave to form a groove.

The catchment gentle slope is arranged at a high position and plays roles in collecting surface water sources and filtering pollutants; the water filtering side wall plays a supporting role; the bottom of the water collecting tank is flat and is paved with planting matrix, and two ends of the water collecting tank are recessed to form grooves.

Wherein the slope of the catchment gentle slope is 10-15 degrees, planting soil is laid on the ground surface, and ornamental grass such as bermuda grass, bluegrass, zoysia japonica and the like is laid.

The height of the water filtering side wall is 75-90 cm, the gradient is 2-5 degrees, overflow holes are distributed in the water filtering side wall, and the overflow holes are connected with a municipal pipe network through PVC pipes in a sealing mode. According to practical conditions, the overflow holes are generally arranged at intervals of 5 m.

Wherein the aperture of the overflow hole is 10-12 cm.

The water filtering side wall is formed by building modeling bricks, the modeling bricks are hollow, two sides of the modeling bricks are communicated, the front side of the modeling bricks is open, the shape of the water filtering side wall is similar to an L shape, the height of the water filtering side wall is 20-25 cm, the width of the water filtering side wall is 16-22 cm, the thickness of the water filtering side wall is 6-10 cm, the bottom of the water filtering side wall extends out of 15cm, the outer side of the water filtering side wall is turned upwards by 5cm, the upper portion of the water filtering side wall extends out of 10cm, clay is filled inside the water filtering side wall, and therefore climbing plants such as iris, humifuse euphorbia herb, and small water turtle can be planted.

Wherein the width of the bottom of the water collecting tank is 5.5-6 m; the depth of the grooves at the two ends is 5-8 cm, and the width is 5-15 cm.

Planting matrix is laid at the bottom of the water collecting tank. The planting substrate is paved into an upper layer and a lower layer, the lower layer is a gravel layer with the particle size smaller than 3cm, the thickness is 6-8 cm, and the functions of filtering and ventilating are achieved; the upper layer is a soil layer which is a mixture of loess and commercially available nutrient soil, the mixing volume ratio is 3:1, and aquatic plants are directly planted. The aquatic plant is repairing plant such as Typha angustifolia, gladiolus, Cymbopogon flexuosus, Ecliptae herba, etc.

Wherein, container flower beds are dispersedly arranged at the bottom of the water collecting tank, clay is arranged in the container flower beds, and ornamental lotus is planted in the container flower beds to play a role in embellishing and beautifying.

Positions or connection relations and the like which are not described in the application can be realized by any prior art.

The concave greenbelt layout can effectively reduce the runoff of surface rainwater, correspondingly reduce the runoff coefficient, improve the infiltration effect, effectively reduce the peak flood in the rainy period and reduce the risk of urban inland inundation. The selection and matching of the multiple-effect functional plants are beneficial to playing the functions of absorption and filtration of various plants to pollutants, and effectively relieving the soil non-point source pollution. The special overflow hole design can effectively supplement underground water, and plays roles in rainwater recovery and resource storage. The landscape architecture is organically combined with municipal engineering, which not only embodies the ecological idea but also ensures the improvement of the urban green land landscape.

Has the advantages that: the sunken ecological green land structure provided by the utility model is provided on the basis of years of practical exploration and analysis comparison, and the core of the sunken ecological green land structure is that the traditional garden construction method that the tall and big garden layout is emphasized once is abandoned, the potential functions of sewage interception, water storage and filtration of the garden green land are ignored, and the sponge function of the garden green land cannot be fully exerted. The utility model realizes drainage through the catchment gentle slope and the water filtering side wall through simple and practical engineering measures, collects water at the bottom of the water collecting tank, is provided with the drainage ditch at the bottom of the water collecting tank, has simple structure, can reasonably arrange plants at the catchment gentle slope, the water filtering side wall and the bottom of the water collecting tank, realizes the functions of intercepting and storing water, and preventing stagnant water on the premise of ensuring the green land rate of urban gardens, promotes the win-win of garden green land construction and urban ecological management in China,

drawings

FIG. 1 is a schematic cross-sectional view of a sunken green land;

FIG. 2 is a schematic view of the shape of the ecological modeling brick;

fig. 3 is a schematic view of stacking of the ecological modeling bricks.

Detailed Description

The utility model will be better understood from the following examples.

The structures, proportions, and dimensions shown in the drawings and described in the specification are for understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined in the claims, and are not essential to the skilled in the art. In addition, the terms "upper", "lower", "front", "rear" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the relative positions may be changed or adjusted without substantial technical changes.

As shown in fig. 1, the field is first leveled to remove foreign materials such as stones, metal, glass, etc. Then, appropriately grooving according to the pre-ensured elevation, and then carrying out structural layout and material filling. The finished cross section structure comprises three parts, namely a catchment gentle slope I, a water filtering side wall II and a water collecting pool bottom III; the catchment gentle slope I is located at a high position and plays roles in collecting surface water sources and filtering pollutants; the water filtering side wall II is composed of a group of modeling bricks 2 with the same shape, and the modeling bricks 2 are stacked up and down on two sides to form a water filtering green wall and play a role in supporting; the bottom III of the water collecting tank is positioned at the lowest part of the green land, the bottom is flat, planting matrixes are laid on the bottom, and grooves 4 are formed in the two ends of the bottom.

Wherein the slope of the catchment gentle slope I is 10-15 degrees, planting soil is laid on the ground surface, and ornamental grass 1 such as bermuda grass, bluegrass, zoysia japonica and the like is laid; the height of the water filtering side wall II is 75-90 cm, the gradient is 2-5 degrees, overflow holes 3 with the aperture of 10-12 cm are arranged every 5m in the middle, and the water filtering side wall II is hermetically connected with a municipal pipe network through PVC pipes; the width of the water collecting tank bottom III is 5.5-6 m, and grooves 4 with the depth of 5-8 cm and the width of 10cm are reserved at two ends.

The modeling brick 2 is hollow, two sides of the modeling brick are communicated, the front side of the modeling brick is open, the modeling brick is similar to an L shape (shown in figure 2), the modeling brick is 20-25 cm high, 16-22 cm wide and 6-10 cm thick, the bottom 13 of the modeling brick extends out for 15cm, the outer side 14 of the modeling brick is turned upwards for 5cm, the upper part 11 of the modeling brick extends for 10cm outwards, clay is filled in the modeling brick, and climbing plants 9 such as iris, humifuse euphorbia herb, and the Chinemys reevesii are planted. The method of stacking is shown in figure 3.

The bottom III of the water collecting tank is filled with planting matrix and is divided into an upper layer and a lower layer which are paved, the lower layer is a gravel layer 7 with the particle size smaller than 3cm, the thickness is 6-8 cm, and the functions of filtering and ventilating are achieved; the upper layer is a soil layer 8 which is a mixture of loess and commercially available nutrient soil, the mixing volume ratio is 3:1, and aquatic plants 10 are directly planted, and the species are typha, gladiolus, saxifraga stolonifera, drocycas, and the like. In addition, container flower beds 6 are dispersedly arranged at the bottom III of the water collecting tank, clay is arranged in the container flower beds, and ornamental lotus seeds are planted in the container flower beds.

The present invention provides a method and a system for constructing a recessed ecological green space, and a method and a system for implementing the method and system are numerous, and the above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.

Claims (10)

1. A concave ecological greenbelt structure is characterized by comprising a catchment gentle slope (I), a water filtering side wall (II) and a water collecting pool bottom (III); the catchment gentle slope (I) is located at a high position; the bottom (III) of the water collecting tank is positioned at the lowest part of the green land, and the bottom is flat; the water filtering side wall (II) is arranged between the bottom end of the catchment gentle slope (I) and the edge of the water collecting pool bottom (III); and the joint of the water filtering side wall (II) and the edge of the water collecting tank bottom (III) is concave to form a groove (4).

2. The ecological green land structure of the concave type, as claimed in claim 1, wherein the slope of the catchment gentle slope (i) is 10-15 degrees.

3. The recessed ecological greenbelt structure according to claim 1, wherein the height of the drainage sidewall (II) is 75-90 cm and the slope is 2-5 degrees.

4. The recessed ecological green land structure according to claim 1, wherein the water filtering side walls (II) are distributed with overflow holes (3), and the overflow holes (3) are hermetically connected with a municipal pipe network through PVC pipes.

5. The recessed ecological green land structure according to claim 4, wherein the diameter of the overflow holes (3) is 10-12 cm.

6. A recessed ecological green space structure, according to claim 1, characterized in that the draining side walls (ii) are built up of shaped bricks (2).

7. The downward-concave ecological green land structure as claimed in claim 6, wherein the shaped bricks (2) are hollow, have two through sides, are open at the front side, have a height of 20-25 cm, a width of 16-22 cm and a thickness of 6-10 cm, extend from the bottom (13), turn up from the outer side (14), and extend from the upper part (11).

8. The recessed ecological green land structure, according to claim 1, characterized in that the width of the pool bottom (III) is 5.5-6 m; the depth of the edge groove (4) is 5-8 cm, and the width is 5-15 cm.

9. The recessed ecological green land structure according to claim 1, wherein planting substrates are laid on the water collecting tank bottom (III), the planting substrates are divided into an upper layer and a lower layer, the lower layer is a gravel layer (7) with the grain diameter smaller than 3cm, and the thickness of the gravel layer is 6-8 cm; the upper layer is a soil layer (8) which is a mixture of loess and commercially available nutrient soil.

10. The recessed ecological greenbelt structure according to claim 1, wherein the water collecting tank bottom (III) is provided with container flower beds (6) in a dispersed manner.

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