CN220157224U - Urban sponge green space structure - Google Patents

Abstract

The utility model provides an urban sponge green land structure which comprises a plain soil layer, a filter layer, a first planting soil layer, a second planting soil layer, a nutrient soil layer, a lawn and a water storage device buried in the plain soil layer, wherein the plain soil layer, the filter layer, the ultraviolet sterilizer, a water pump and a water sprinkling assembly are sequentially connected, a drain pipe with a seepage hole is arranged in the second planting soil layer, and the drain pipe is connected with the water storage tank. The utility model collects water in soil layer through the drain pipe, leads to the water storage device to store water, the redundant water in soil layer is discharged out fast through the filter layer to prevent waterlogging, the water storage can meet the water demand of plants under the condition of continuous no precipitation, the filter and the ultraviolet sterilizer are additionally arranged, the water storage is converted into water meeting the requirements of sprinkling irrigation, and the water is used for irrigating plants on the ground through the water pump and the sprinkling assembly.

Description

Urban sponge green space structure

Technical Field

The utility model relates to the field of sponge cities, in particular to a sponge green land structure.

Background

With the increasing demand of large and medium-sized urban residents on urban green lands, sunbath culture is vigorously developed in large and medium-sized cities in China, and tree forests and grasslands in public green lands are becoming popular. However, the phenomena of grasslands, poor growth of greening plants, drought and waterlogging, uneven terrain and the like are increasingly prominent.

The sponge city is a new generation of integral concepts of water supply, rainwater and flood, and is similar to a sponge in green space, and has the elasticity of water storage and water supply under various environments. When raining, water absorption, water storage, water seepage and water purification are carried out, and the stored water is released and utilized as required, so that a closed loop circulation system is formed. At present, the construction of sponge cities needs to relate to technologies in a plurality of fields, including hydraulic engineering, environmental engineering, civil engineering, landscape design and the like, and the built sponge green land structure generally has the problems of function deficiency, unreasonable layout and structure, so that water absorption, water storage, water seepage and water purification cannot be continuously performed for a long time.

Disclosure of Invention

The utility model aims to: the utility model aims to provide the urban sponge green space structure capable of effectively conveying, filtering, storing and using urban rainwater aiming at the defects of the prior art.

The technical scheme is as follows: the utility model discloses an urban sponge green land structure which comprises a plain soil layer, a filter layer, a first planting soil layer, a second planting soil layer, a nutrient soil layer, a lawn and a water storage device buried in the plain soil layer, wherein the plain soil layer, the filter layer, the ultraviolet sterilizer, a water pump and a water sprinkling assembly are sequentially connected, a drain pipe with a seepage hole is arranged in the second planting soil layer, and the drain pipe is connected with the water storage tank.

Further, the filter layer comprises a gravel layer and geotextiles respectively arranged above and below the gravel layer.

Further, the thickness of the first planting soil layer is 340-360mm, the compaction coefficient is greater than 85%, the thickness of the second planting soil layer is 1100-1300mm, and the compaction coefficient is greater than 80%.

Still further, the drain pipes include a first drain pipe, a second drain pipe, a third drain pipe, the first drain pipe is disposed in the second planting soil layer, the second drain pipe is disposed in the first planting soil layer, the first drain pipe and the second drain pipe are connected through the third drain pipe, and the second drain pipe is connected to the water storage tank.

Further, the first drain pipe is enveloped by a stainless steel pipe at the passing portion.

Further, the water storage device is compacted in a plain soil layer by plain soil, the compaction coefficient is larger than 90%, a concrete layer and a graded broken stone layer are sequentially arranged at the bottom of the water storage device, and steel bars are arranged in the concrete layer.

Further, the water storage device comprises an overflow pipe connected to the municipal sewage pipe.

Further, the water storage tank further comprises a water supply pipe, a water spraying pipe and a spray head which are sequentially connected with the water pump, the water spraying pipe is arranged in the nutrient soil layer, and the spray head is arranged on the lawn.

Further, a water level sensor is arranged in the water storage tank.

The beneficial effects are that: the utility model collects water in soil layer through drain pipe, leads to water storage device to store water, the redundant water in soil layer is discharged fast through filter layer to prevent waterlogging, the water storage can meet the water demand of plant under continuous no-precipitation condition, and filter and ultraviolet sterilizer are added to convert water storage city to water meeting sprinkling irrigation requirement, water is used for irrigation of ground plant through water pump and sprinkling assembly.

Drawings

FIG. 1 is a plan view of the present utility model;

FIG. 2 is a plan view of an embodiment application project landscape and sprinkler;

FIG. 3 is a section A-A of FIG. 1;

FIG. 4 is a plan view of the water reservoir;

FIG. 5 is a section B-B of FIG. 4;

FIG. 6 is a plan view of a cistern;

FIG. 7 is a section C-C of FIG. 6;

FIG. 8 is a section D-D of FIG. 6;

FIG. 9 is a section E-E of FIG. 6;

FIG. 10 is a plan view of a water reservoir filter and an ultraviolet sterilizer;

FIG. 11 is a section F-F of FIG. 6;

fig. 12 is a side view of the climbing frame.

Detailed Description

The technical scheme of the utility model is described in detail below through the drawings, but the protection scope of the utility model is not limited to the embodiments.

Examples: the embodiment is applied to the Qinglong second-period project of Nanjing city in Jiangsu province, the area from the north of the Kinghou road to the mountain along the mountain road in the Nanjing area, the total length is about 5.5 km, the occupied area is about 62.7 hectares, the land area is about 48.9 hectares, and the water area is about 13.8 hectares.

As shown in fig. 1-3, the water storage device comprises a plain soil layer 8, a filter layer, a first planting soil layer 4, a second planting soil layer 2, a nutrition soil layer 1, a lawn and a water storage device buried below the plain soil layer 8, wherein the plain soil layer 8, the filter layer, the first planting soil layer 4, the second planting soil layer 2, the nutrition soil layer 1 and the lawn are arranged from bottom to top.

Wherein, the filter layer includes gravel layer 6 and sets up two-layer geotechnique's cloth 5 about gravel layer 6, and the thickness of gravel layer 6 is 600mm, and geotechnique's cloth 5 specification is 500 g/square meter, size is 6000 x 50000mm. The filter layer is connected with the nearest water system or is connected with a municipal rainwater and sewage pipe, so that flood drainage in a storm environment can be guaranteed.

The thickness of the first planting soil layer 4 is 350mm, the compaction coefficient is more than 85%, the thickness of the second planting soil layer 2 is 1200mm, and the compaction coefficient is more than 80%. The thickness of the nutrient soil layer 1 is 450mm, and the nutrient soil and coarse sand are adopted according to the following proportion of 3:1, mixing the materials in a mass ratio.

As shown in fig. 4 to 11, the water storage device 12 comprises a drain pipe, a water storage tank 29, a filter 22, an ultraviolet sterilizer 21, a water pump 23 and a sprinkler assembly which are sequentially connected, and an overflow pipe 17 connected with the water storage tank 29, wherein the drain pipe is arranged in the nutrient soil layer 1. The sprinkler assembly comprises a water feed pipe 37, a sprinkler pipe 13 and a sprinkler head 14 connected in sequence with a water pump 23, the sprinkler pipe 13 being arranged in the nutrient soil layer 1, the sprinkler head 14 being arranged on the lawn, the sprinkler head 14 in fig. 2 representing a circular spray range. The overflow pipe 17 is connected to a municipal sewage pipe, and a PVC pipe with a pipe wall thickness of 5mm and a diameter of 200mm is adopted.

The size of the water storage tank 29 of this embodiment is 2800×7660×3000mm, and the maximum water storage capacity is 37.26 cubic meters, and the field can be irrigated for 37 days. The water storage tanks 29 are of a three-section assembly structure, each section of water storage tank 29 is prefabricated by doping 8% of waterproof agent into C30 concrete, and the inner and outer walls of the water storage tanks 29 are coated with Flexcryl series acrylic acid polymer waterproof paint layers 28. Each section of water storage tank 29 is connected through mortise and tenon joint structure, is equipped with 20mm thick SBS rubber waterproof bed course 31 on the contact surface of mortise and tenon joint structure, prevents that the junction from leaking. In order to ensure the assembly positioning accuracy between the water storage tanks 29 of each section, through holes 30 penetrating through the water storage tanks 29 are formed in the top positions of the water storage tanks 29, positioning steel bars 32 horizontally penetrate through the through holes 30 of the water storage tanks 29 of each section, the setting of the positioning steel bars 32 can prevent sedimentation differences between the water storage tanks 29 of each section, and the whole water storage tanks 29 are ensured to be not easy to change. The water storage device 12 is compacted in the plain soil layer 8 by plain soil, the compaction coefficient is larger than 90%, a concrete layer 26 and a graded broken stone layer 25 are sequentially arranged at the bottom of the water storage device 12, reinforcing steel bars 27 with the diameter of 8mm are arranged in the concrete layer 26, the spacing between the reinforcing steel bars 27 is 150mm, and the thickness of the graded broken stone layer 25 is 200mm.

The water storage device 12 is provided with a climbing frame 33, the climbing frame 33 is fixed on the side wall of the water storage device 12 through a steel plate 35 arranged in concrete, and as shown in fig. 12, the top of the climbing frame 33 covers the well cover 7.

The drain pipes include a first drain pipe 3, a second drain pipe 10, and a third drain pipe 9. Wherein, the passing part of the first drain pipe 3 is encapsulated by a stainless steel pipe 11 with the thickness of 5mm and the diameter of 250mm, so as to prevent crushing. The first drain pipe 3, the second drain pipe 10 and the third drain pipe 9 are all PVC pipes. The pipe wall thickness of the first drain pipe 3 is 3mm, the diameter is 100mm, two layers of geotechnical cloth are wrapped, the first drain pipe 3 is arranged in the second planting soil layer 2, holes are punched every 40 meters to serve as seepage holes, and the extending directions of a plurality of groups of first drain pipes 3 are parallel to each other. The second drain pipe 10 has a pipe wall thickness of 5mm and a diameter of 200mm and is arranged in the first planting soil layer 4. The wall thickness of the third drain pipe 9 is 3.5mm, and the diameter is 160mm. Since the first drain pipe 3 and the second drain pipe 10 are arranged in different layered structures, the node of the first drain pipe 3 is connected longitudinally to the second drain pipe 10 with a third drain pipe 9, the second drain pipe 10 being connected to a water reservoir 29.

Rainwater permeates into the second planting soil layer 2, enters the first drain pipe 3 through a seepage hole on the first drain pipe 3, and sequentially enters the water storage tank 29 through the first drain pipe 3, the third drain pipe 9 and the second drain pipe 10. When the water storage tank 29 stores water to a certain height, the water flows out through the overflow pipe 17 and flows into the municipal rainwater pipe. On the other hand, the water in the water storage tank 29 passes through the built-in stainless steel mesh 34, the filter 22, the water pump 23, the water supply pipe 37, the sprinkler pipe 13 and the sprinkler head 14 to irrigate the lawn.

The water storage device 12 further comprises a water level sensor 20, a soil integrated sensor 15 and its sensor weak wire 24 and a data transmission center 19, which are arranged in a water storage tank 29. The equipment parameter of the water level sensor is a 0-3000mm Taizhou Liqing integral liquid level sensor, the equipment parameter of the soil comprehensive sensor is a model 485 soil nitrogen phosphorus potassium memory+temperature and humidity+pH five probe, and the equipment parameter of the data transmission center is a remote communication Internet of things module USR-LG207. The soil integrated sensor 15 and the water level sensor 20 send the obtained data of the nitrogen, phosphorus and potassium content of the soil, the temperature, the humidity, the pH value and the water level information of the water storage tank 29 to the data sending center 19 through the sensor weak wire 24, and the data is transmitted to the terminal through the data sending center.

As described above, although the present utility model has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the utility model itself. Various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (9)

1. The utility model provides a urban sponge greenbelt structure, its characterized in that includes plain soil layer (8), filter layer, first planting soil layer (4), second planting soil layer (2), nutrition soil layer (1) and lawn and buries retaining device (12) in plain soil layer (8) of arranging by supreme down, retaining device (12) are including water storage tank (29), filter (22), ultraviolet sterilizer (21), water pump (23) and the watering subassembly of connecting in proper order, be equipped with the drain pipe that has the seepage hole in second planting soil layer (2), drain pipe connection water storage tank (29).

2. Urban sponge green-land structure according to claim 1, characterized in that said filter layer comprises a crushed stone layer (6) and geotextiles (5) respectively arranged above and below the crushed stone layer (6).

3. Urban sponge green-land structure according to claim 1, characterized in that said first planting soil layer (4) has a thickness of 340-360mm, a compaction factor greater than 85% and said second planting soil layer (2) has a thickness of 1100-1300mm, a compaction factor greater than 80%.

4. Urban sponge greenbelt structure according to claim 3, characterized in that the drain pipes comprise a first drain pipe (3), a second drain pipe (10), a third drain pipe (9), the first drain pipe (3) being arranged in the second planting soil layer (2), the second drain pipe (10) being arranged in the first planting soil layer (4), the first drain pipe (3) and the second drain pipe (10) being connected by the third drain pipe (9), the second drain pipe (10) being connected to the water reservoir (29).

5. Urban sponge green space structure according to claim 4, characterized in that the first drain pipe (3) is enveloped in a stainless steel pipe (11) in the transit section.

6. Urban sponge green-land structure according to claim 1, characterized in that said water storage means (12) is compacted in plain soil layer (8) by plain soil with a compaction coefficient greater than 90%, the bottom of said water storage means (12) being provided in sequence with a concrete layer (26) and a graded crushed stone layer (25), in which concrete layer (26) reinforcing bars (27) are arranged.

7. Urban sponge greenbelt structure according to claim 1, characterized in that the water storage means (12) comprise an overflow pipe (17), which overflow pipe (17) is connected to a municipal sewage pipe.

8. Urban sponge green space structure according to claim 1, characterized in that said water storage tank (29) further comprises a water feed pipe (37) connected in sequence with the water pump (23), a sprinkler pipe (13) and a sprinkler head (14), said sprinkler pipe (13) being arranged in the nutrient soil layer (1), said sprinkler head (14) being arranged on the lawn.

9. Urban sponge green space structure according to claim 1, characterized in that a water level sensor (20) is provided in the water reservoir (29).