Sponge city efficient permeation green land planting structure

Abstract

The utility model discloses a kind of sponge city efficient permeation greenbelt planting structures, it includes: green grass layer, artificial backfill nutrient soil layer, non-woven geotextile, water-accumulating layer and original soil layer, water-accumulating layer, non-woven geotextile, artificial backfill nutrient soil layer and green grass layer are sequentially laid from bottom to top in the upper of original soil layer, first drainage pipeline is provided in original soil layer, a plurality of rootlet pipes are provided on first drainage pipeline, a plurality of rootlet pipes are arranged along the direction of first drainage pipeline, one end of rootlet pipe extends into water-accumulating layer, a plurality of first through holes are provided on rootlet pipe, overflow pipe is provided on first drainage pipeline, overflow pipe extends to green grass layer upwards, overflow hole is provided on first drainage pipeline, overflow hole bottom is connected with second drainage pipeline, second drainage pipeline is connected with water-collecting well, and sealing assembly is provided at overflow hole. The utility model can solve the problem of poor permeability of urban green space compared with prior art.

Description

Technical Field

[0001] This utility model relates to a planting structure, and more particularly to a high-efficiency permeable green space planting structure for sponge cities. Background Technology

[0002] Sponge city, a new generation of urban stormwater management concept, refers to a city's excellent "elasticity" in adapting to environmental changes and responding to natural disasters caused by rainwater; it can also be called a "water-resilient city." When it rains, it absorbs, stores, infiltrates, and purifies water; when needed, it releases and utilizes the stored water. Building a sponge city requires "sponge bodies." Urban "sponge bodies" include water systems such as rivers, lakes, and ponds, as well as urban infrastructure such as green spaces, gardens, and permeable pavements. Rainwater infiltrates, is retained, purified, and reused through these "sponge bodies," and the remaining runoff is discharged through pipe networks and pumping stations, thereby effectively improving the standards of the urban drainage system and alleviating the pressure of urban flooding.

[0003] Urban paved roads are generally used for vehicle traffic and heavy machinery operation. Over the years, the soil—a crucial component of the "sponge"—has undergone significant changes. The most obvious impact is on soil permeability and water retention. Due to road reconstruction and human interference, soil stratification is difficult to achieve, resulting in a thin topsoil layer. Urban land is either severely desertified or has a heavy, clayey texture, making it prone to compaction. The granular structure that promotes plant growth declines sharply, leading to plant mortality and decreased soil permeability and water retention. Utility Model Content

[0004] The purpose of this utility model is to provide a sponge city-efficient permeable green space planting structure to solve the problem of poor permeability of urban green spaces.

[0005] To achieve the above objectives, this utility model provides a high-efficiency permeable green space planting structure for sponge cities, comprising: a green turf layer, an artificial backfill nutrient soil layer, a non-woven geotextile, a water accumulation layer, and a native soil layer. The water accumulation layer, the non-woven geotextile, the artificial backfill nutrient soil layer, and the green turf layer are laid sequentially from bottom to top above the native soil layer. A first drainage pipe is installed within the native soil layer. Several root pipes are installed on the first drainage pipe, arranged along the direction of the first drainage pipe. One end of each root pipe extends into the water accumulation layer. Several first through holes are provided on each root pipe. An overflow pipe is installed on the first drainage pipe, extending upwards to the green turf layer. An overflow hole is provided on the first drainage pipe, with the bottom of the overflow hole connected to a second drainage pipe. The second drainage pipe is connected to a collection well. A sealing component is installed at the overflow hole.

[0006] As a further description of the above technical solution: The sealing assembly includes a fixed post and a float. The fixed post is fixedly connected to the second drainage pipe, and the float is movably connected to the fixed post. The float is located directly above the inlet of the second drainage pipe.

[0007] As a further description of the above technical solution: The fixing column is a cylindrical structure that runs vertically through the top and bottom, and the fixing column is provided with at least one second through hole.

[0008] As a further description of the above technical solution: The inner surface of the fixed column is provided with an inclined surface.

[0009] As a further description of the above technical solution: A filter screen is installed at the inlet of the overflow pipe.

[0010] As a further description of the above technical solution: The green turf layer is laid in a concave arc shape, and the overflow pipe is located at the lowest point of the green turf layer.

[0011] As a further description of the above technical solution: The water accumulation layer is surrounded by geotextile.

[0012] As a further description of the above technical solution: The water accumulation layer is a layer of gravel or coarse sand.

[0013] In summary, due to the adoption of the above technical solutions, the beneficial effects of this utility model are as follows: Through the arrangement of a green turf layer, an artificial backfill nutrient soil layer, a non-woven geotextile, a water accumulation layer, and a native soil layer, the geotextile isolates the nutrient soil from the native soil, preventing nutrient loss; the turf layer and nutrient layer promote vegetation establishment; the water accumulation layer, in conjunction with the geotextile, accelerates rainwater drainage and avoids waterlogging; the overall structure enhances the resistance to settlement and extends the project's lifespan; the root pipes and the first drainage pipe simulate the absorption of water from the water accumulation layer by plant roots, resulting in better absorption; and the overflow pipe improves drainage efficiency and reduces the occurrence of floods. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1This is a schematic diagram of a highly efficient permeable green space planting structure for sponge cities.

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0017] Figure 3 This is a schematic diagram of a sealing component in a high-efficiency permeable green space planting structure for sponge cities.

[0018] Legend: 1. Green turf layer; 2. Artificial backfill nutrient soil layer; 3. Non-woven geotextile; 4. Water collection layer; 5. Original soil layer; 6. First drainage pipe; 7. Root pipe; 8. Overflow pipe; 9. Second drainage pipe; 10. Water collection well; 11. Sealing component; 111. Fixing column; 112. Float ball; 12. Second through hole; 13. Filter screen. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of the embodiments of this utility model, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1-3 This utility model provides a high-efficiency permeable green space planting structure for sponge cities, comprising: a green turf layer 1, an artificial backfill nutrient soil layer 2, a non-woven geotextile 3, a water accumulation layer 4, and an original soil layer 5. The water accumulation layer 4, the non-woven geotextile 3, the artificial backfill nutrient soil layer 2, and the green turf layer 1 are laid sequentially from bottom to top above the original soil layer 5. A first drainage pipe 6 is provided within the original soil layer 5. Several root pipes 7 are provided on the first drainage pipe 6, arranged along the direction of the first drainage pipe 6. One end of each root pipe 7 extends into the water accumulation layer 4. Several first through holes are provided on each root pipe 7. An overflow pipe 8 is provided on the first drainage pipe 6, extending upwards to the green turf layer 1. An overflow hole is provided on the first drainage pipe 6, with the bottom of the overflow hole connected to a second drainage pipe 9. The second drainage pipe 9 is connected to a collection well 10. A sealing component 11 is provided at the overflow hole.

[0025] The sealing assembly 11 includes a fixed post 111 and a float 112. The fixed post 111 is fixedly connected to the second drainage pipe 9, and the float 112 is movably connected to the fixed post 111. The float 112 is located directly above the inlet of the second drainage pipe 9. When there is little water entering the first drainage pipe, the float cannot rise to block the overflow hole, and the water flows through the first drainage pipe and root pipes to the water accumulation layer, which can increase the water content of the green space. When there is a lot of water in the first drainage pipe, the float rises and the overflow hole opens, allowing water to flow from the second drainage pipe to the collection well for collection and utilization.

[0026] The fixing column 111 is a cylindrical structure that runs vertically through the column, and at least one second through hole 12 is provided on the fixing column 111 to facilitate the entry and exit of water.

[0027] The inner surface of the fixed column 111 is provided with a slope, which increases the water inlet area.

[0028] A filter screen 13 is installed at the inlet of the overflow pipe 8. This prevents impurities from entering and avoids pipe blockage.

[0029] The turf layer 1 is laid in a concave arc shape, and the overflow pipe 8 is located at the lowest point of the turf layer 1. This facilitates rainwater collection at the lowest point and promotes drainage.

[0030] The water-collecting layer 4 is surrounded by geotextile. The water-collecting layer 4 is a gravel layer or a coarse sand layer.

[0031] Working principle: The system consists of a green turf layer, an artificial backfill nutrient soil layer, a non-woven geotextile, a water accumulation layer, and an original soil layer. The geotextile isolates the nutrient soil from the original soil, preventing nutrient loss; the turf and nutrient layers promote vegetation establishment; the water accumulation layer, in conjunction with the geotextile, accelerates rainwater drainage and prevents waterlogging; the overall structure enhances resistance to settlement and extends the project's lifespan; the root pipes and primary drainage pipes simulate plant roots absorbing water from the water accumulation layer, resulting in better absorption; the overflow pipes improve drainage and reduce the occurrence of floods; when there is little water entering the primary drainage pipe, the float cannot rise and block the overflow hole, and water flows through the primary drainage pipe and root pipes to the water accumulation layer, increasing the moisture content of the green space; when there is a lot of water in the primary drainage pipe, the float rises and the overflow hole opens, allowing water to flow from the secondary drainage pipe to the collection well for collection and utilization.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A highly efficient permeable green space planting structure for sponge cities, characterized in that... The system includes: a green turf layer, an artificial backfill nutrient soil layer, a non-woven geotextile, a water accumulation layer, and a native soil layer. The water accumulation layer, non-woven geotextile, artificial backfill nutrient soil layer, and green turf layer are laid sequentially from bottom to top above the native soil layer. A first drainage pipe is installed within the native soil layer. Several root pipes are installed on the first drainage pipe, arranged along the direction of the first drainage pipe. One end of each root pipe extends into the water accumulation layer. Several first through holes are provided on each root pipe. An overflow pipe is installed on the first drainage pipe, extending upwards to the green turf layer. An overflow hole is provided on the first drainage pipe, with its bottom connected to a second drainage pipe. The second drainage pipe is connected to a collection well. A sealing component is installed at the overflow hole.

2. The sponge city high-efficiency permeable green space planting structure according to claim 1, characterized in that... The sealing assembly includes a fixed post and a float. The fixed post is fixedly connected to the second drainage pipe, and the float is movably connected to the fixed post. The float is located directly above the inlet of the second drainage pipe.

3. The sponge city high-efficiency permeable green space planting structure according to claim 2, characterized in that... The fixing column is a cylindrical structure that runs vertically through the top and bottom, and the fixing column is provided with at least two first through holes.

4. The sponge city high-efficiency permeable green space planting structure according to claim 3, characterized in that... The inner surface of the fixed column is provided with an inclined surface.

5. The sponge city high-efficiency permeable green space planting structure according to claim 1, characterized in that... A filter screen is installed at the inlet of the overflow pipe.

6. The sponge city high-efficiency permeable green space planting structure according to claim 1, characterized in that... The green turf layer is laid in a concave arc shape, and the overflow pipe is located at the lowest point of the green turf layer.

7. The high-efficiency permeable green space planting structure for sponge cities according to claim 1, characterized in that... The water accumulation layer is surrounded by geotextile.

8. The sponge city high-efficiency permeable green space planting structure according to claim 1, characterized in that... The water accumulation layer is a layer of gravel or a layer of coarse sand.

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