CN206571217U - Outdoor Parking position system based on sponge the idea of the city - Google Patents

Abstract

The utility model provides an outdoor parking space system based on the concept of a sponge city, which includes a foundation pit, a parking platform is arranged on the top of the foundation pit, and a number of permeable holes are arranged on the parking platform; Purification filter layer, the first water storage layer is formed between the purification filter layer and the parking platform; the second water storage layer is arranged below the purification filter layer; the purification filter layer includes garden planting soil, coarse sand and humus A sawdust mixture, with greenery planted on top of this purifying filter layer. In the utility model, when it rains, the rainwater enters the first aquifer through the permeable hole of the parking platform for regulation and storage; then, the rainwater slowly enters the second aquifer downwards, and enters the second aquifer under the action of the purification filter layer. The water quality in the second aquifer has improved substantially. It can be seen that the utility model has a certain control function on both the quantity and quality of rainwater, which is beneficial to saving water resources and reducing the risk of urban waterlogging.

Description

Outdoor parking space system based on the concept of sponge city

technical field

The utility model relates to the technical field of parking systems, in particular to an outdoor parking space system based on the concept of a sponge city.

Background technique

With the acceleration of the urbanization process, waterlogging disasters occur frequently in many places. Flood disasters have become an urban disease that plagues major cities in China. From 2008 to 2010 alone, 62% of cities experienced different degrees of rainstorms and waterlogging, causing property damage. losses and even casualties. The non-point source pollution formed by the showering and scouring of urban rainfall runoff is the second largest type of non-point source pollution after agricultural non-point source pollution. Especially in the early stage of heavy rain, due to the rainfall and runoff, the pollutants on the surface and deposited in the sewer network will suddenly wash into the receiving water body in a short period of time, causing water pollution. Waterlogging and non-point source pollution are the main problems faced by urban rain and floods. If they are not solved properly, they will affect the healthy development of the city and the safety of people's lives. Sponge city construction uses various low-impact development of rainwater infrastructure to give full play to the absorption, storage and slow release of rainwater by urban green spaces, roads and water systems, so that the hydrological characteristics after urban development and construction are close to those before development.

Permeable parking spaces are a relatively common low-impact development technique. Permeable parking spaces use permeable materials to replace concrete, asphalt and facing bricks used in traditional parking lots, so that rainwater can infiltrate in situ and reduce the runoff coefficient of the underlying surface. The permeable parking spaces are generally built on the soil foundation, and the permeable surface layer, permeable leveling layer, permeable base and permeable subbase are set from top to bottom. The permeable surface layer generally adopts permeable bricks, grass-embedded bricks, permeable concrete, etc.; the permeable leveling layer generally adopts dry sand, gravel or dry hard mortar, and the thickness is generally 20mm-30mm; the permeable base generally adopts graded gravel and medium coarse sand Or natural graded gravel materials, etc., the thickness of the permeable subbase is generally greater than 150mm.

Permeable paved parking spaces have a wide range of applications and are convenient for construction. They have the functions of reducing the surface runoff coefficient through infiltration, storing water, and replenishing groundwater. However, they have the following disadvantages:

1) It is easy to clog, and the water permeability will drop to the level of ordinary materials after clogging, and it can no longer function;

2) Water seepage and water permeability are limited: Although the surface layer of permeable parking spaces generally has a large permeability coefficient (generally greater than 1×10-4m/s), it can make medium and small rainfall penetrate into the base layer or underground in time, but because the surrounding soil generally has limited permeability , the ground floor of parking spaces will soon be saturated. According to the porosity of 20% based on the thickness of the crushed stone base layer of 200mm, the water storage capacity can meet the rainfall of 40mm, which is roughly equivalent to the once-a-year rainfall that lasts for one hour in South China, and the capacity will be close to the limit;

3) There is a risk of being damaged by freezing and thawing in cold areas.

Utility model content

Aiming at the defects in the prior art, the utility model provides an outdoor parking space system based on the concept of sponge city to provide the control function of both rainwater volume and water quality, and improve the rainwater quality while controlling the rainwater volume, so as to facilitate rainwater Reuse is conducive to saving water resources.

The utility model provides an outdoor parking space system based on the concept of a sponge city, which includes a foundation pit, a parking platform is provided on the top of the foundation pit, and a number of permeable holes are arranged on the parking platform; A purification filter layer, a first water storage layer is formed between the purification filter layer and the parking platform, and a second water storage layer is arranged below the purification filter layer; the purification filter layer includes garden planting soil, coarse sand and humus A sawdust mixture, with greenery planted on top of this purifying filter layer.

In the utility model, when it rains, the rainwater enters the first water storage layer through the permeable holes of the parking platform. The first water storage layer is an empty area formed between the parking platform and the purification filter layer, which is equivalent to a concave Therefore, the first aquifer can hold more rainwater, adjust and store the rainwater, and greatly reduce the accumulation of rainwater on the parking platform; then, the rainwater in the first aquifer will slowly Slowly go down through the purification filter layer and enter the second aquifer. Under the filtering effect of the purification filter layer, the water quality entering the second aquifer can be greatly improved, and the rainwater will flow to the underground soil layer in the second aquifer. Further infiltration, and finally into the groundwater, can effectively replenish groundwater resources. It can be seen that the utility model has a certain control function on the water quantity and water quality of rainwater, which is conducive to saving water resources; in addition, the garden planting soil, coarse sand and humus sawdust mixture of the purification filter layer have excellent purification ability, And it can support the survival of common lawn greening plants such as bermudagrass, ryegrass and tall fescue grass. Planting such greening plants on the top of the purification filter layer can effectively fill in the greening area reduced by the construction of the parking system, and can generally While effectively solving the problem of difficult parking in the old residential areas, the ecological function of the sponge city has been brought into play.

Preferably, the parking platform includes a plurality of parking boards; the foundation pit includes two short side walls and two long side walls, the long side walls are provided with a first support wall, and the short side walls are provided with There is a second support wall, and a plurality of second support walls are arranged at equal intervals between the two short side walls; the top of the first support wall and two adjacent second support walls is provided with a parking plate . The first supporting wall and the second supporting wall can well fix the parking board, ensure the bearing capacity and stability of the parking board, and improve the safety performance of the parking system.

Preferably, the parking slab includes a plurality of steel gratings, two adjacent steel gratings are connected by mounting clips, and support columns are provided at the joints of the two adjacent steel gratings. The structural strength of the steel grating is high, which can ensure the safety of the parking system; moreover, the steel grating has ventilation, lighting, heat dissipation and anti-skid properties, so that the green plants under the parking plate can receive enough sunlight, which is beneficial Vegetation growth.

Preferably, the second aquifer is a gravel aquifer, the gravel is limestone crushed stone with a diameter of 8-11mm without impurities, and the porosity of the second aquifer is 30%-40%; A non-woven fabric is arranged between the purification filter layer and the second water storage layer. After the rainwater is filtered, it can be stored in the second aquifer. The aquifer with this structure can hold 0.2 cubic meters of rainwater per square meter, which has an excellent effect of rainwater regulation and storage; moreover, in the purification and filtration Non-woven fabrics are arranged in the layer and the second water storage layer, which can effectively prevent the soil and other materials in the purification filter layer from falling into the second water storage layer, and ensure the stability of the purification filter layer.

Preferably, a drainage pipe is provided in the second aquifer, and the drainage pipe communicates with the overflow well; several drainage holes are provided on the circumference of the drainage pipe, and the opening ratio of the drainage pipe is 3%; The outer circumference of the drainage pipe is surrounded by non-woven fabrics. When the amount of rainwater is large and the regulation and storage capacity of the first aquifer and the second aquifer reaches the limit, the rainwater will enter the drainage pipe along the drainage hole, and then the excess rainwater will be discharged into the overflow well. This design structure can improve the regulation and storage capacity of the parking system, and further prevent the accumulation of rainwater on the parking plate, which is beneficial to urban construction; moreover, the non-woven fabric is arranged on the outer periphery of the drainage pipe, which can prevent impurities such as sediment from entering the drainage pipe middle.

Preferably, a waterproof cloth is provided at the bottom of the second water storage layer. When the distance between the second aquifer and the groundwater is greater than 1 meter, there is no need to set up a waterproof cloth, because the rainwater will be filtered twice during the process of infiltrating into the groundwater, so that the quality of the rainwater is further guaranteed and can be collected. However, when the bottom of the second aquifer is less than 1 meter away from the groundwater, although the quality of the purified and filtered rainwater has theoretically reached the standard for entering the groundwater, but , just in case, it is necessary to set up tarpaulins at the bottom of the second aquifer to prevent rainwater from entering the groundwater.

Preferably, the first supporting wall, the second supporting wall and the supporting columns are all made of reinforced concrete to ensure the stability and reliability of their supporting effect on the parking slab.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the specific implementation or the prior art. Throughout the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, elements or parts are not necessarily drawn in actual scale.

Fig. 1 is a top view of an outdoor parking space system based on the sponge city concept described in the utility model;

Fig. 2 is A-A sectional view among Fig. 1;

Fig. 3 is a B-B sectional view in Fig. 1 .

Reference signs:

1-Parking board; 2-First water storage layer; 3-Purification filter layer; 4-Second water storage layer; 5-First support wall; 6-Second support wall; 7-Support column; 8-Drain pipe ; 9 - overflow well.

detailed description

Embodiments of the technical solutions of the present utility model will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present utility model more clearly, so they are only examples, and should not be used to limit the protection scope of the present utility model.

As shown in Figure 1, Figure 2 and Figure 3, an outdoor parking space system based on the sponge city concept provided by an embodiment of the utility model includes a foundation pit, and in the foundation pit from top to bottom are parking plates 1, The first water storage layer 2, the purification filter layer 3 and the second water storage layer 4, wherein the upper surface of the parking plate 1 is flush with the road surface; the first water storage layer 2 is formed between the parking plate 1 and the purification filter layer 3 The vacant area is used to regulate and store rainwater to reduce the accumulation of rainwater on the parking plate 1; the purification filter layer 3 includes a mixture of garden planting soil, coarse sand and humus sawdust with a volume ratio of 5:4:1, which can remove 85% of rainwater TSS solid suspended solids, 50% of total nitrogen and 65% of total phosphorus, greatly improve the quality of filtered rainwater; the second aquifer 4 is a gravel aquifer with a porosity of 30%-40%. 8-11mm limestone gravel without impurities, after the rainwater is filtered, it can be stored in the second aquifer 4, and one square meter can hold 0.2 cubic meters of rainwater, which has an excellent effect of rainwater regulation and storage; A non-woven fabric is arranged between the above-mentioned purification filter layer 3 and the second water storage layer 4 to prevent materials such as soil in the purification filter layer 3 from falling into the second water storage layer 4 and ensure the stability of the purification filter layer.

Greening plants are planted on the top of the purification filter layer 3, and the components of the purification filter layer 3 can support the survival of common lawn greening plants such as bermudagrass, ryegrass and tall fescue grass, and such plants are planted on the top of the purification filter layer 3 Green plants can effectively fill the green area reduced due to the construction of the parking system, and when the plants mature, they can also bring the appearance characteristics of green parking spaces.

In this embodiment, the thicknesses of the first aquifer 2, the purification filter layer 3 and the second aquifer 4 are respectively 200 mm, 400 mm and 500 mm. In a community of 100,000 square meters, when the parking system provided by this embodiment occupies When the area of the community is about 2%, it can not only provide about 200 parking spaces, but also provide about 1,000 cubic meters of flood storage volume, which is equivalent to the 16mm rainfall of the entire community being controlled and utilized.

The foundation pit includes two short side walls and two long side walls. In order to support the parking plate and build a water storage space, a first support wall 5 is provided at the long side walls, and a first support wall 5 is provided at the short side walls. A second support wall 6 is provided, and a plurality of second support walls 6 are arranged at equal intervals between the two short side walls, and the tops of the first support wall 5 and two adjacent second support walls 6 are set A parking plate1.

Parking plate 1 adopts 7-10cm thick galvanized steel grating structure. According to the size requirements of general parking spaces, the width is generally 2500mm-3000mm, and the length is generally 5000-6000mm. The size of the galvanized steel grating used is 950mmx2100mm. One parking panel It is composed of 5-6 galvanized steel gratings installed side by side, and the two adjacent steel gratings are connected by matching installation clips, and a supporting column 7 is provided at the joint of the two adjacent steel gratings; Among them, the pore size of the galvanized steel grating is 100x30mm, and the pores of the steel grating form permeable holes that facilitate the smooth passage of rainwater.

The above-mentioned first support wall 5, second support wall 6 and support column 7 are all constructed with reinforced concrete structure to ensure the stability and reliability of their supporting effect on the parking slab.

In addition, the above-mentioned second aquifer 4 is provided with a drainage pipe 8, and the drainage pipe 8 communicates with the overflow well 9; a number of drainage holes are opened on the circumference of the drainage pipe 8, and the opening ratio is 3%. The amount of rainwater is large, and when the regulation and storage capacity of the first aquifer 2 and the second aquifer 4 reaches the limit, the rainwater will enter the drainage pipe 8 along the drainage hole, and then discharge the excess rainwater to the overflow well In 9, adopting this design structure can ensure the overall safety of the structure, and at the same time improve the regulation and storage capacity of the parking system, which is beneficial to urban construction; non-woven fabrics are arranged on the outer periphery of the drainage pipe 8 to prevent impurities such as silt from entering Drain pipe 8.

It should be noted that when the bottom of the second aquifer 4 is less than 1 meter away from the groundwater, although the quality of the purified and filtered rainwater has theoretically reached the standard for entering the groundwater, in order to be in case, It is necessary to arrange a tarp at the bottom of the second aquifer 4 to prevent rainwater from entering the groundwater; and when the distance between the second aquifer 4 and the groundwater is greater than 1 meter, it is not necessary to arrange a tarp.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present utility model. , which should be included in the claims of the utility model and the scope of the specification.

Claims (7)

1. a kind of Outdoor Parking position system based on sponge the idea of the city, it is characterised in that：

Including foundation ditch, the top of the foundation ditch is provided with landing, and the landing is provided with some permeable holes；

Cleaned filtering layer is provided with below the landing, first is formed between the cleaned filtering layer and the landing The second aquifer is provided with below aquifer, the cleaned filtering layer, green plants are implanted with the top kind of the cleaned filtering layer.

2. the Outdoor Parking position system according to claim 1 based on sponge the idea of the city, it is characterised in that：

The landing includes multiple parking plates；

The foundation ditch includes two short side walls and two long side wall, and the long side-walls are provided with the first knee wall, the short side wall Place is provided with the second knee wall, and spaced set has multiple second knee walls between two short side walls；

First knee wall and two neighboring second support coping are erected with a parking plate.

3. the Outdoor Parking position system according to claim 2 based on sponge the idea of the city, it is characterised in that：

The parking plate is included using installation folder connection between polylith steel grating, adjacent two pieces of steel gratings, and in adjacent two blocks of steel The seam crossing of panel is provided with support column.

4. the Outdoor Parking position system according to claim 3 based on sponge the idea of the city, it is characterised in that：

Second aquifer is gravel aquifer, and the gravel is broken using a diameter of 8-11mm lime stone free from foreign meter Stone, the porosity 30%-40% of second aquifer；

Non-woven fabrics is provided between the cleaned filtering layer and the second aquifer.

5. the Outdoor Parking position system according to claim 4 based on sponge the idea of the city, it is characterised in that：

Drainpipe is provided with second aquifer, the drainpipe is connected with overflow well；

Some osculums are offered in the circumference of the drainpipe, the percent opening of the drainpipe is 3%；

The periphery of the drainpipe is surrounded with non-woven fabrics.

6. the Outdoor Parking position system according to claim 5 based on sponge the idea of the city, it is characterised in that：

The bottom of second aquifer is provided with waterproof cloth.

7. the Outdoor Parking position system according to claim 3 based on sponge the idea of the city, it is characterised in that：

First knee wall, the second knee wall and support column use Reinforced Concrete Materials.