CN217267898U - Sponge city micro-space regulation green land system - Google Patents
Sponge city micro-space regulation green land system Download PDFInfo
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- CN217267898U CN217267898U CN202220351625.2U CN202220351625U CN217267898U CN 217267898 U CN217267898 U CN 217267898U CN 202220351625 U CN202220351625 U CN 202220351625U CN 217267898 U CN217267898 U CN 217267898U
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Abstract
The utility model provides a sponge city microspace regulation greenery patches system aims at providing one kind and can improve the regulation ability of recessed formula greenery patches, realizes reducing the recessed degree of depth in greenery patches, reduces because of sponge city facility design implements the sponge city microspace regulation greenery patches system to the interior vertical standard height dependence in place. The water storage green land comprises a storage green land, wherein the storage green land comprises a planting soil layer positioned on an upper layer and a storage layer positioned on a lower layer, the planting soil layer is used for planting vegetation, the porosity of the storage layer is more than 20%, and the storage layer stores water through the pores of the storage layer; the overflow well is positioned in the regulation and storage green land, the wall of the overflow well is formed by pouring permeable concrete, and the well mouth of the overflow well is communicated with the upper surface of the planting soil layer; the rainwater overflow hopper is positioned in the overflow well, the opening of the rainwater overflow hopper is upward, and the opening height of the rainwater overflow hopper is close to the interface of the planting soil layer and the regulation and storage layer; and one end of the drain pipe penetrates through the overflow well and is connected with the rainwater overflow hopper.
Description
Technical Field
The patent relates to the technical field of sponge cities, in particular to a sponge city micro-space green space storage regulating system.
Background
With the acceleration of urbanization process in China, the original ecological environment capacity cannot meet the requirement of urban development in the existing mode. The impervious ground in the urban gathering area is increased rapidly, so that the original infiltration channel of rainfall is blocked, the rainfall flood peak value is increased, and urban waterlogging is caused. Meanwhile, initial rainwater runoff pollution generated by rainwater washing of the ground threatens urban water ecological balance.
The construction concept of the sponge city is creatively provided for the country, the city is built into a sponge body to form a water elastic city, the water is absorbed, stored, seeped and purified when raining, and the stored water is released and utilized when needed, so that the good migration of rainwater in the urban development is realized. Therefore, the urban water environment condition is improved, and the capacity of coping with urban waterlogging risks is improved.
The concave green land is an important measure in a sponge city construction technical system controlled by city sources, is arranged in urban roads, districts and park green lands as a water storage, water purification and drainage facility, not only has remarkable delay regulation and storage effects on storm runoff, but also can control runoff pollution. In order to meet the water storage requirement, the water storage requirement is generally met by deeper concave depth, and the usually designed storage depth (namely the concave depth) is 200 mm-300 mm (the storage depth refers to the distance between the upper surface of the concave green and the ground elevation); the larger storage depth is not only contradictory to the accounting of the greening rate (the deeper the storage depth is, the lower the accounting of the greening rate is); in addition, for the concave green land arranged in the residential area, the soil layer of the residential area is thin, and the arrangement of the soil layer thickness of the residential area is directly influenced by the depth of the storage depth, so that the construction cost is increased.
Disclosure of Invention
The utility model aims at the great scheduling problem of the regulation degree of depth that exists to the typical recessed formula greenery patches in present stage, provide a sponge city microspace regulation greenery patches system, its regulation ability that can improve the recessed formula greenery patches realizes reducing the recessed degree of depth in greenery patches, reduces because of the reliance of sponge city facility design implementation to vertical standard height in the place.
The utility model adopts the technical proposal that:
a sponge urban micro-space storage regulation greenbelt system comprises:
the storage regulation green land comprises a planting soil layer positioned on the upper layer and a storage regulation layer positioned on the lower layer, wherein the planting soil layer is used for planting vegetation, the porosity of the storage regulation layer is more than 20%, and the storage regulation layer stores water through the pores of the storage regulation layer;
the overflow well is positioned in the regulation and storage green land, the wall of the overflow well is formed by pouring permeable concrete, and the well mouth of the overflow well is communicated with the upper surface of the planting soil layer;
the rainwater overflow hopper is positioned in the overflow well, the opening of the rainwater overflow hopper is upward, and the opening height of the rainwater overflow hopper is close to the interface of the planting soil layer and the regulation and storage layer;
and one end of the drain pipe penetrates through the overflow well and is connected with the rainwater overflow hopper.
Through adopting above-mentioned technical scheme, during the rainfall, the rainwater runoff assembles to recessed green land, holds back through planting the soil layer that the suspended pollutant infiltrates, flows in regulation layer and overflow well through the osmosis, fills up gradually when regulation layer aperture, and the water level risees gradually to the opening back of rainwater overflow fill in the overflow well, and the rainwater that the overflow fill was crossed to the overflow well passes through overflow fill and drain pipe in time discharges to play the effect that the rainwater was accumulated and was polluted with the control runoff. When the rainfall is large, the infiltration effect is too late to infiltrate the ground, the rainwater runoff can directly flow into the overflow well through the wellhead of the overflow well from the upper surface of the planted soil layer, and the overproof rainfall is timely removed on the premise of meeting the rainwater storage function. This technical scheme utilizes the hole on regulation layer to impound to cooperation overflow well and rainwater overflow fill effectively improve the regulation ability of concave formula greenery patches, thereby can reduce the concave degree of depth in greenery patches, reduce sponge urban facility to the interior vertical standard height in place dependence.
Preferably, the opening height of the rainwater overflow hopper is flush with the interface between the planting soil layer and the regulation and storage layer. In this scheme, the opening height of rainwater overflow fill with plant soil layer and regulation layer interface parallel and level, be applicable to the rainfall comparatively evenly in the ground area, during the rainfall, the rainwater runoff assembles to lower concave greenery patches infiltration, accumulates the effect of gathering the rainwater in regulation layer and overflow well through the through-hole on infiltration and the perforated pipe. When rainfall gradually increases, the regulation layer pore space is gradually filled, the water level in the overflow well rises, the overflow hopper is submerged, and excessive rainwater can be timely discharged through the overflow hopper and the drain pipe.
Preferably, the opening height of the rainwater overflow hopper is higher than the interface of the planting soil layer and the regulation and storage layer. In this scheme, the opening height of rainwater overflow fill is higher than planting soil layer and regulation and storage layer interface, and it reduces green space system's drainage ability through the drainage water level that improves the system, increases green space system's the retaining degree of depth, is applicable to the area that the rainfall is less, makes green space system accumulate the rainwater as much as possible when the rainfall, ensures that the vegetation on upper strata survives.
Preferably, the opening height of the rainwater overflow hopper is lower than the interface of the planting soil layer and the regulation and storage layer. In this scheme, the opening height of rainwater overflow fill is less than plants soil layer and regulation layer interface, and its drainage water level through the reduction system strengthens greenery patches system drainage ability, reduces the retaining degree of depth of greenery patches system, is applicable to the comparatively abundant area of rainwater, does not need too much accumulation rainwater during the rainfall, can in time discharge unnecessary rainwater, prevents the waterlogging.
Preferably, a grate is placed in the wellhead of the overflow well, a sewage intercepting hanging basket is arranged below the grate, and pebbles are piled around the wellhead of the overflow well. So, can prevent that runoff pollutant from getting into the overflow well and blockking up overflow hopper and drain pipe.
Preferably, the drain pipe is arranged in the storage layer and communicated with the municipal rainwater pipe network system. Therefore, rainwater in the green land system can be discharged in time, and waterlogging is prevented.
Preferably, a perforated pipe is arranged in the storage layer, a plurality of water through holes are formed in the pipe wall of the perforated pipe, and one end of the perforated pipe is communicated with the overflow well. Therefore, rainwater in the storage layer can be helped to enter the overflow well as soon as possible, and the water level in the overflow well is kept consistent with the storage layer.
Preferably, the storage regulating layer is composed of crushed stones.
Preferably, the porosity of the storage regulating layer is controlled to be 30% -40%. Therefore, water can be stored through the pores of the storage layer, and the concave depth of the green land is reduced.
Preferably, the permeable geotextile is laid between the planting soil layer and the storage layer, and the permeable geotextile is also laid below the storage layer. Therefore, water and soil loss on the upper side and the lower side of the storage regulating layer can be prevented, and the porosity of the storage regulating layer is influenced.
The utility model discloses have following beneficial effect: the regulation ability of recessed greenery patches can be improved, the recessed degree of depth in greenery patches is realized reducing, reduces because of sponge city facility design implements the reliance to vertical elevation in the place.
Drawings
Fig. 1 is the utility model discloses a little space greenery patches regulation system structure sketch map of sponge city.
Fig. 2 is a schematic view of a cross-sectional structure of a-a in fig. 1 of a micro-space green space storage regulating system of a sponge city of the present invention.
Fig. 3 is the utility model relates to a sponge city microspace regulation system's top view.
In the figure:
1. planting a soil layer;
2. a storage layer;
3. a perforated pipe;
4. an overflow well;
5. a drain pipe;
6. water-permeable geotextile;
7. a rainwater overflow hopper;
8. pebbles;
9. a sewage intercepting hanging basket;
10. a fine-toothed comb.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The first embodiment is as follows: as shown in fig. 1 and 2, the micro-space green land regulation and storage system for sponge cities comprises a regulation and storage green land, an overflow well 4, a rainwater overflow hopper 7 and a drain pipe 5. The storage regulation green land comprises a planting soil layer 1 positioned on the upper layer and a storage regulation layer 2 positioned on the lower layer, wherein the planting soil layer 1 is used for planting vegetation; the porosity of the regulating layer 2 is more than 20%, and the regulating layer stores water through the pores of the regulating layer. The overflow well 4 is located in the regulated green. The well wall of the overflow well 4 is formed by pouring permeable concrete. The upper surface of soil layer is planted in the well head intercommunication of overflow well 4, and in this embodiment, the well head of overflow well flushes with the upper surface of planting the soil layer. The rainwater overflow hopper 7 is positioned in the overflow well, the opening of the rainwater overflow hopper 7 faces upwards, and the opening height of the rainwater overflow hopper 7 is close to the interface of the planting soil layer and the regulation and storage layer. One end of the drain pipe 5 passes through the overflow well and is connected with the lower end of the rainwater overflow hopper. In this embodiment, the other end of drain pipe communicates municipal rainwater pipe network system.
During rainfall, the rainwater runoff is gathered to concave greenery patches, holds back through planting the soil layer that the suspended pollutant oozes, flows in regulation layer and overflow well through the osmosis, fills up gradually when regulation layer aperture, and the water level risees gradually to the opening back of rainwater overflow fill in the overflow well, and the rainwater that the overflow fill was crossed to the overflow well passes through overflow fill and drain pipe in time discharges to play the effect that the rainwater was accumulated and was polluted with the control runoff. When the rainfall is large, the infiltration effect is too late to infiltrate the ground, the rainwater runoff can directly flow into the overflow well through the wellhead of the overflow well from the upper surface of the planted soil layer, and the overproof rainfall is timely removed on the premise of meeting the rainwater storage function. This technical scheme utilizes the hole on regulation layer to impound to cooperation overflow well and rainwater overflow fill effectively improve the regulation ability of recessed greenery patches, thereby can reduce the recessed degree of depth in greenery patches, reduce sponge urban facility to the reliance of vertical elevation in the place. In addition, because the concave green land in the embodiment has good regulation capacity and small concave depth, the plants planted on the planting soil layer can be matched with conventional plants, and the later-stage operation and maintenance management pressure can be reduced.
Specifically, the upper surface of the planting soil layer 1 is lower than the ground elevation by 50 mm-100 mm, so that rainwater can be collected to a green land system conveniently. The soil layer is improved soil, 50% coarse sand is doped in the soil for planting, the thickness is 300mm, the requirement for plant growth is met, and meanwhile, the permeability of the soil layer is improved. Conventional vegetation can be planted above the planting soil layer 1, and the later maintenance cost is reduced.
The regulation layer 2 comprises the rubble, and in this embodiment, the rubble that the particle size was 20mm ~30mm is selected for use to the rubble, and control porosity is 30% ~40%, and thickness is 300mm, can save water through the space between the rubble, when guaranteeing the regulation function, reduces the concave depth in greenery patches.
An overflow well 4 in the green land system penetrates through the regulation and storage layer 2 and the planting soil layer 1 from bottom to top, the well wall is poured by pervious concrete, the well bottom is poured by common concrete, so that the well bottom is not permeable, and rainwater in the regulation and storage layer can penetrate into the overflow well through the well wall.
Furthermore, a grate 10 is arranged in the wellhead of the overflow well 4, a sewage interception hanging basket 9 is arranged below the grate, and pebbles 8 are piled around the wellhead of the overflow well. So, can prevent that the runoff pollutant from getting into the overflow well and blockking up overflow hopper and drain pipe, the later maintenance of being convenient for. Meanwhile, pebbles 8 are piled around the inlet, and a certain purification effect on rainwater runoff can be achieved.
Furthermore, a drain pipe 5 is arranged in the regulation and storage layer and communicated with the municipal rainwater pipe network system. Therefore, rainwater in the green land system can be drained in time, and waterlogging is prevented.
Furthermore, a perforated pipe 3 is arranged in the storage layer, a plurality of water through holes are formed in the pipe wall of the perforated pipe, and one end of the perforated pipe is communicated with the overflow well. Therefore, rainwater in the storage layer can be helped to enter the overflow well as soon as possible, and the water level in the overflow well is kept consistent with the storage layer.
Furthermore, a permeable geotextile 6 is laid between the planting soil layer and the regulation and storage layer, and a permeable geotextile is also laid below the regulation and storage layer. Therefore, water and soil loss on the upper side and the lower side of the regulation layer can be prevented, and the porosity of the regulation layer is influenced.
In one embodiment of this embodiment, the opening height of the rain water overflow 7 is flush with the interface between the vegetation layer and the storage regulation layer. In this embodiment, the opening height of rainwater overflow fill with plant soil layer and regulation layer interface parallel and level, be applicable to the rainfall comparatively evenly in the ground, during the rainfall, the rainwater runoff assembles to lower concave greenery patches infiltration, accumulates in regulation layer and overflow well through the through-hole on infiltration and the perforated pipe, plays the effect of rainwater accumulation. When rainfall gradually increases, the regulation layer pore space is gradually filled, the water level in the overflow well rises, the overflow hopper is submerged, and excessive rainwater can be timely discharged through the overflow hopper and the drain pipe.
In another embodiment of this embodiment, the opening height of the rain water overflow 7 is higher than the interface of the vegetation layer and the storage layer. In the embodiment, the opening height of the rainwater overflow hopper is higher than the interface between the plant soil layer and the storage regulation layer, the drainage capacity of the green land system is reduced by improving the drainage water level of the system, the water storage depth of the green land system is increased, and the rainwater storage system is suitable for the areas with less rainfall, so that the green land system can store rainwater as much as possible during rainfall, and the survival of vegetation on the upper layer is guaranteed.
In the third embodiment of this embodiment, the opening height of the rain water overflow 7 is lower than the interface of the vegetation layer and the regulation layer. In this embodiment, the opening height of rainwater overflow fill is less than plants soil layer and regulation layer interface face, and its drainage water level through reduction system strengthens greenery patches system drainage ability, reduces greenery patches system's retaining degree of depth, is applicable to the comparatively abundant area of rainwater, does not need too much accumulation rainwater during the rainfall, can in time discharge unnecessary rainwater, prevents the waterlogging.
The embodiment of this embodiment is the preferred embodiment of the present invention, not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The utility model provides a little space regulation greenery patches system in sponge city which characterized by includes:
the storage regulation green land comprises a planting soil layer (1) located on the upper layer and a storage regulation layer (2) located on the lower layer, wherein the planting soil layer (1) is used for planting vegetation, the porosity of the storage regulation layer (2) is greater than 20%, and the storage regulation layer stores water through the pores of the storage regulation layer;
the overflow well (4) is positioned in the regulation and storage green land, the well wall of the overflow well (4) is formed by pouring permeable concrete, and the well mouth of the overflow well (4) is communicated with the upper surface of the planting soil layer (1);
the rainwater overflow hopper (7) is positioned in the overflow well (4), the opening of the rainwater overflow hopper (7) is upward, and the opening height of the rainwater overflow hopper (7) is close to the interface of the planting soil layer (1) and the regulation and storage layer (2);
and one end of the drain pipe (5) penetrates through the overflow well and is connected with a rainwater overflow hopper (7).
2. The sponge urban micro-space storage greenbelt system according to claim 1, wherein the opening height of the rainwater overflow hopper (7) is flush with the interface of the vegetation layer (1) and the storage layer (2).
3. The sponge urban micro-space storage greenbelt system according to claim 1, wherein the opening height of the rainwater overflow hopper (7) is lower than the interface of the vegetation layer (1) and the storage layer (2).
4. The sponge urban micro-space storage greenbelt system according to claim 1, wherein the opening height of the rainwater overflow hopper (7) is higher than the interface of the vegetation layer (1) and the storage layer (2).
5. A sponge urban micro-space storage greenbelt system according to claim 1, 2, 3 or 4, characterized in that a grate (10) is placed in the mouth of the overflow well (4), a sewage interception hanging basket (9) is arranged below the grate (10), and pebbles (8) are piled around the mouth of the overflow well (4).
6. A sponge urban micro-space storage greenfield system according to claim 1 or 2 or 3 or 4, characterized in that the drainage pipe (5) is arranged in a storage layer.
7. The sponge urban micro-space storage greenbelt system according to claim 1, 2, 3 or 4, characterized in that perforated pipes (3) are arranged in the storage layer (2), the pipe walls of the perforated pipes are provided with a plurality of water through holes, and one ends of the perforated pipes (3) are communicated with the overflow well (4).
8. The sponge urban micro-space storage green space system according to claim 1 or 2 or 3 or 4, characterized in that the storage layer (2) is composed of crushed stones.
9. The sponge urban micro-space storage regulation greenbelt system according to claim 1, 2, 3 or 4, characterized in that the porosity of the storage regulation layer (2) is 30% -40%.
10. The micro-space regulation and storage greenbelt system for sponge cities as claimed in claim 1, 2, 3 or 4, wherein a permeable geotextile (6) is laid between the planting soil layer (1) and the regulation and storage layer (2), and a permeable geotextile (6) is laid under the regulation and storage layer (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220351625.2U CN217267898U (en) | 2022-02-21 | 2022-02-21 | Sponge city micro-space regulation green land system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220351625.2U CN217267898U (en) | 2022-02-21 | 2022-02-21 | Sponge city micro-space regulation green land system |
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| CN217267898U true CN217267898U (en) | 2022-08-23 |
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