CN209891349U

CN209891349U - A formula of sinking greenery patches structure for sponge city

Info

Publication number: CN209891349U
Application number: CN201920312539.9U
Authority: CN
Inventors: 陈威风; 吴怡; 刘锰军; 姜光红
Original assignee: Zhejiang Green City Oriental Architectural Design Co Ltd
Current assignee: Zhejiang Green City Oriental Architectural Design Co Ltd
Priority date: 2019-03-12
Filing date: 2019-03-12
Publication date: 2020-01-03
Anticipated expiration: 2029-03-12

Abstract

The utility model relates to the technical field of urban water conservancy facilities, in particular to a sunk greenbelt structure for a sponge city, which comprises a soil layer, a reverse osmosis filter layer, a water storage layer and an overflow well penetrating through each layer, wherein the soil layer is provided with a vegetation protector on the surface, and the open end of the overflow well is higher than the soil layer; the bottom of the overflow well is communicated with an underground drainage pipeline; the overflow well is including encircleing overflow well wall and roof all around, the overflow well wall is higher than the part on soil horizon, and the interval is equipped with the adjustable fender who is used for controlling the overflow well head and opens and shuts, adjustable fender rotates through pivot and roof and is connected. The utility model discloses simple structure, overflow well opening design benefit can realize automatic opening and shutting, avoids blockking up, and the infiltration hole design of underground drainage pipe's pipe wall realizes that the controllable function of multi-angle regulation volume accords with the design theory in sponge city.

Description

A formula of sinking greenery patches structure for sponge city

Technical Field

The utility model relates to an urban water conservancy facility technical field especially relates to a formula of sinking greenery patches structure for sponge city.

Background

The sponge city is a new generation of city rain and flood management concept and can also be called as a 'water elastic city'. When raining, the utility model absorbs water, stores water, seeps water and purifies water, and when needed, the stored water is released and utilized. The sponge city construction mode emphasizes that green measures such as grass planting ditches, rainwater gardens, sunken greenbelts and the like are preferentially utilized to organize drainage, and the main planning and design concept of slow drainage and slow release and source dispersion control is adopted. Under the mode, a single 'fast discharge' mode in the traditional city construction is converted into a multi-target overall process comprehensive management mode of 'seepage, stagnation, storage, purification, utilization and discharge'.

The sunken green land is a green land lower than the surrounding ground, and uses an open space to receive and store rainwater so as to achieve the effect of reducing runoff discharge, and the internal plants are mainly indigenous herbaceous plants. In order to integrate the rain and flood management concept of sponge cities, the submerged greenbelt is constructed, and multiple benefits of waterlogging prevention and control, water resource utilization and landscape beautification can be realized.

In the past, the sunken greenbelts are not sufficiently paid attention to in municipal construction, so that the greenbelts cannot play the functions of storing and filtering rainwater. The existing sunken greenbelt is mostly provided with overflow holes, so that the application area is wide, but when the sunken greenbelt is applied in a large area, the sunken greenbelt is easily influenced by conditions such as terrain and the like, and the actual storage volume is small; in addition, the existing overflow holes have the hidden trouble of easy blockage, and the overflow discharge of runoff is blocked when rainstorm occurs, so that urban waterlogging is caused. The ground needs to be dug to clean the crushed stone layer during maintenance, the maintenance cost is high, and the urban landscape is damaged. Therefore, in order to further accelerate the construction of the sponge city, the design of a novel sunken greenbelt structure has important research significance.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome the problem that current formula greenery patches regulation volume is little, easy jam, maintenance cost are high, provide a regulation volume controllable, have dustproof prevent stifled function, maintenance cost low be used for sponge city's formula greenery patches structure that sinks.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a sunk greenbelt structure for a sponge city comprises a soil layer, a reverse osmosis filter layer, a water storage layer and an overflow well penetrating through all the layers, wherein the soil layer, the reverse osmosis filter layer, the water storage layer and the overflow well are sequentially arranged from top to bottom; the bottom of the overflow well is communicated with an underground drainage pipeline; the overflow well is including encircleing overflow well wall and roof all around, the overflow well wall is higher than the part on soil horizon, and the interval is equipped with the adjustable fender who is used for controlling the overflow well head and opens and shuts, adjustable fender rotates through pivot and roof and is connected.

The horizontal plane of the sinking type greenbelt structure of the utility model is lower than the road surface, the utility model breaks the conventional overflow well design structure, creatively opens the well mouth on the overflow well wall, utilizes the ingenious design of the movable baffle plate, when no rainfall occurs, the movable baffle plate vertically stands, and forms a closed structure with the top plate, prevents sundries from entering the overflow well, and avoids blockage; when rainstorm occurs, a small amount of accumulated water generated by the soil layer is filtered by the reverse osmosis filter layer to enter the water storage layer, and the excessive accumulated water can wash the movable baffle plate, so that the movable baffle plate is opened around the pin shaft to the inner cavity of the overflow well, and a large amount of accumulated water flows into the overflow well and is discharged from the underground drainage pipeline, and urban waterlogging can be effectively relieved; after accumulated water is drained, the movable baffle is reset under the action of gravity, and the overflow well is closed.

Preferably, the cross section of the overflow well is of a rectangular structure, and the movable baffle plates are respectively arranged on a pair of edges of the overflow well wall.

As preferred, be equipped with reset spring between adjustable fender and the roof, after ponding is discharged, reset spring can drive adjustable fender and reset fast, closes the overflow well.

Preferably, the pipe wall of the underground drainage pipeline is composed of a honeycomb framework and a plurality of regular hexagon elastic sheets filled in the honeycomb, and the middle of each elastic sheet is provided with an elastic cross water seepage port.

The utility model creatively arranges a plurality of seepage holes on the pipe wall of the underground drainage pipe, when the rainfall is mild, the accumulated water of the underground drainage pipe can not generate excessive pressure on the pipe wall, and the accumulated water directly flows out through the underground drainage pipe; when the rainfall is too large, excessive accumulated water can generate excessive pressure on the pipe wall, so that the elastic cross-shaped water seepage port is opened, and part of accumulated water seeps out through the water seepage port to replenish underground water; meanwhile, when groundwater is deficient, even if the internal accumulated water pressure of the underground drainage pipeline is not large enough, groundwater can be supplemented in a balanced mode through the seam structure, therefore, the function that the volume is controllable through multi-angle regulation is achieved, and the design concept of a sponge city is met.

Preferably, the aquifer is in communication with an underground aquifer conduit.

Preferably, the reverse osmosis filter layer comprises a plurality of gravels with different sizes, can filter the impurity in the rainwater, prevents simultaneously that ponding from reverse osmosis to the soil horizon, and the water after the filtration gets into underground water storage pipeline, through sewage treatment plant further purification treatment, recycles, and the problem that the municipal water is nervous is solved to the rational utilization water resource.

Preferably, the interfaces between the soil layer and the reverse osmosis filtering layer and between the reverse osmosis filtering layer and the water storage layer are of a wave-shaped curved surface structure. The wave-shaped curved surface structure can reduce stress between levels and is more stable.

Therefore, the utility model discloses following beneficial effect has: simple structure, overflow well opening design benefit can realize automatic opening and shutting, avoids blockking up, and the infiltration hole design of underground drainage pipe's pipe wall realizes the controllable function of multi-angle regulation volume, has the multi-target overall process integrated management mode of "oozing, stagnate, hold, net, use, row", accords with the design theory in sponge city.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the drainage state of the present invention.

FIG. 3 is a schematic structural view of the underground drainage pipeline in a closed state.

FIG. 4 is a schematic structural view of the opened state of the elastic cross water seepage port of the underground drainage pipeline.

In the figure: soil horizon 1, reverse osmosis filter layer 2, water storage layer 3, overflow well 4, vegetation protection body 5, underground drainage pipe 6, the overflow wall of a well 7, roof 8, adjustable fender 9, pivot 10, reset coil spring 11, cellular skeleton 12, regular hexagon shell fragment 13, elasticity cross infiltration mouth 14, gravel 15, ponding 16, road surface 17.

Detailed Description

The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings.

As shown in figure 1, the sunken green land structure for the sponge city comprises a soil layer 1, a reverse osmosis filter layer 2, a water storage layer 3 and an overflow well 4, wherein the soil layer 1 is provided with vegetation protectors 5 planted on the surface, the reverse osmosis filter layer 2 is composed of a plurality of gravels 15 with different sizes, the water storage layer 3 is communicated with an underground water storage pipeline, and the cross section of the overflow well penetrates through each layer and is of a rectangular structure. The interfaces between the soil layer and the reverse osmosis filtering layer and between the reverse osmosis filtering layer and the water storage layer are of a wave-shaped curved surface structure. The open end of the overflow well is higher than the soil layer; the bottom of the overflow well is communicated with an underground drainage pipeline 6; the overflow well includes overflow well wall 7 and roof 8, and the overflow well wall is higher than a set of opposite side on soil horizon and is equipped with the adjustable fender 9 that is used for controlling the overflow well head and opens and shuts symmetrically, and adjustable fender rotates with the roof through the pivot 10 that the cover was equipped with reset coil spring 11 to be connected, and the storage tank with adjustable fender shape adaptation is seted up to the roof bottom surface.

As shown in figure 3, the pipe wall of the underground drainage pipe is composed of a honeycomb framework 12 and a plurality of regular hexagon elastic sheets 13 filled in the honeycomb, and the middle parts of the elastic sheets are provided with elastic cross water seepage ports 14.

The utility model discloses theory of operation under the different states does:

(1) as shown in fig. 1, when there is no rainfall, the movable baffle stands vertically under the action of gravity and forms a closed structure with the top plate, so that impurities are prevented from entering the overflow well and blocking is avoided;

(2) when a small amount of rainfall falls, the accumulated water directly permeates the soil layer, is filtered by the reverse osmosis filter layer, enters the water storage layer and flows into the underground water storage pipeline;

(3) as shown in fig. 2, when a large amount of rainfall occurs, the redundant accumulated water generates impact force on the movable baffle plate, the movable baffle plate is driven to be opened inwards around the rotating shaft, and the accumulated water flows into the overflow well and flows into the underground drainage pipeline to be discharged; when the accumulated water is excessive, the movable baffle plate is large in opening range and can rotate into the containing groove formed in the bottom surface of the top plate, the accumulated water generates excessive pressure on the pipe wall of the underground drainage pipe, so that the elastic cross-shaped water seepage port is opened (see figure 4), and part of the accumulated water seeps out through the water seepage port to replenish the underground water; when the accumulated water is drained, the movable baffle returns to the state shown in figure 1 under the driving of the return spring.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A sunk greenbelt structure for a sponge city is characterized by comprising a soil layer (1), a reverse osmosis filter layer (2), a water storage layer (3) and an overflow well (4) penetrating through all the layers, wherein the soil layer (1), the reverse osmosis filter layer (2), the water storage layer (3) and the overflow well are sequentially arranged from top to bottom, a vegetation protector (5) is planted on the surface of the soil layer, and the opening end of the overflow well is higher than the soil layer; the bottom of the overflow well is communicated with an underground drainage pipeline (6); the overflow well comprises an overflow well wall (7) and a top plate (8), wherein a movable baffle (9) for controlling the opening and closing of the overflow well mouth is arranged at a part of the overflow well wall higher than a soil layer at intervals, and the movable baffle is rotatably connected with the top plate through a rotating shaft (10).

2. The sunk green land structure for sponge city as claimed in claim 1, wherein the bottom of the top plate is provided with a containing groove adapted to the shape of the movable baffle.

3. The structure of claim 1, wherein the cross section of the overflow well is rectangular, and the movable baffles are respectively arranged on a pair of edges of the overflow well wall.

4. A sunken greenbelt structure for a sponge city according to claim 1, wherein a return coil spring (11) is sleeved on the rotating shaft.

5. The sunk greenbelt structure for sponge city as claimed in claim 1, wherein the pipe wall of the underground drainage pipeline is composed of a honeycomb skeleton (12) and a plurality of regular hexagon spring plates (13) filled in the honeycomb, and the middle parts of the spring plates are provided with elastic cross water seepage ports (14).

6. The structure of claim 1, wherein the aquifer is in communication with an underground storage conduit.

7. A sunk greenbelt structure for sponge cities as claimed in claim 1, wherein the anti-seepage filtration layer is composed of a plurality of gravel (15) of varying sizes.

8. The structure of a sunk green land for a sponge city as claimed in any one of claims 1 to 7, wherein the interface between the soil layer and the reverse osmosis filtration layer and the interface between the reverse osmosis filtration layer and the aquifer are of a wave-shaped curved surface structure.