CN210104904U

CN210104904U - Garden green land paving structure beneficial to water storage and drainage

Info

Publication number: CN210104904U
Application number: CN201822256743.1U
Authority: CN
Inventors: 李维; 孟亚萍; 朱捷; 黄益国; 高静; 王春发; 马玉勇; 刘绍杰; 陈瑾
Original assignee: Hengyang Agricultural Science Research Institute
Current assignee: Hengyang Agricultural Science Research Institute
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2020-02-21
Anticipated expiration: 2028-12-29

Abstract

The garden green land paving structure beneficial to water storage and drainage comprises a sandy soil layer, a purification permeable layer, a non-woven fabric layer, a coarse sand isolation layer and a planting soil layer which are sequentially paved on base soil from bottom to top; the planting soil layer is sunken downwards to form a water storage cavity. The planting soil layer is sunken downwards to form a water storage cavity. The utility model has the functions of water storage, water seepage and purification; the planting soil layer is sunken downwards to form a water storage cavity, rainwater can be effectively retained in rainy days, the retained rainwater can continuously and slowly seep downwards in a period of time, the water content of the soil can be increased to nourish vegetation on garden greenbelts, and underground water resources can be supplemented; the downward-seeping rainwater is purified when passing through the purification permeable layer, so that dust and soil can be filtered, and the pollution of a rainwater surface source to the urban environment is reduced.

Description

Garden green land paving structure beneficial to water storage and drainage

Technical Field

The utility model relates to a city infrastructure technical field, especially a do benefit to gardens greenery patches structure of mating formation that holds drainage.

Background

Along with the acceleration of the urbanization construction process, the lower bedding surfaces of the green lands of the urban gardens are increasingly covered by buildings, structures and various impervious bedding surfaces, so that rainwater cannot permeate into the lands, the water-vapor energy exchange in the atmosphere is isolated, a large amount of rainwater can be lost, the groundwater cannot be supplemented, and the drainage pressure of a municipal drainage pipeline is increased.

Disclosure of Invention

The utility model aims at overcoming the not enough of prior art, and provide a do benefit to gardens greenery patches structure of mating formation that holds drainage, it has not only considered city greenery patches infiltration and retaining function, has combined landscape effect to carry out plant collocation simultaneously, has formed the view area that collects the function and beautifully integrateed, has solved the relatively poor problem of current city gardens greenery patches infiltration performance.

The technical scheme of the utility model is that: the garden green land paving structure beneficial to water storage and drainage comprises a sandy soil layer, a purification permeable layer, a non-woven fabric layer, a coarse sand isolation layer and a planting soil layer which are sequentially paved on base soil from bottom to top; the planting soil layer is sunken downwards to form a water storage cavity.

The utility model discloses further technical scheme is: the water storage cavity is a groove or a pit.

The utility model discloses still further technical scheme is: the water storage cavity is respectively planted with hygrophytes and mesophytes from the bottom to the edge, and the outer side of the edge of the water storage cavity is planted with xerophytes.

The utility model discloses a further technical scheme is: the sandy soil layer, the purification permeable layer, the non-woven fabric layer and the coarse sand isolation layer are all sunken downwards, and the sunken shapes are all consistent with the sunken shapes of the planting soil layer.

The utility model discloses a further technical scheme is: the sandy soil layer is formed by mixing coarse sand in base soil and compacting; the purifying and water permeable layer is prepared by uniformly mixing one or more of perlite, vermiculite, ceramsite and quartz sand and then bonding the mixture by using an adhesive; the grit barrier layer consists only of clean grit.

The utility model discloses a further technical scheme is: the thickness of the planting soil layer is 500mm, the thickness of the coarse sand isolation layer is 50mm, the thickness of the purification permeable layer is 100mm, and the thickness of the sandy soil layer is 300-500 mm.

Compared with the prior art, the utility model have following advantage:

1. has the functions of water storage, water seepage and purification; the planting soil layer is sunken downwards to form a water storage cavity, rainwater can be effectively retained in rainy days, the retained rainwater can continuously and slowly seep downwards in a period of time, the water content of the soil can be increased to nourish vegetation on garden greenbelts, and underground water resources can be supplemented; the downward-seeping rainwater is purified when passing through the purification permeable layer, so that dust and soil can be filtered, and the pollution of a rainwater surface source to the urban environment is reduced.

2. When the rainwater storage device is arranged at two sides of a road, rainwater from the road surface can be received and accumulated so as to reduce the runoff of heavy rain, reduce the instantaneous peak flow and relieve the drainage pressure of municipal rainwater pipelines during heavy rain.

The invention is further described below with reference to the figures and examples.

Drawings

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

Detailed Description

Example 1:

as shown in figure 1, do benefit to gardens greenery patches structure of mating formation of holding drainage, include from the supreme sandy soil layer 2 of laying in proper order on basic unit soil 1 down, purify permeable bed 3, non-woven fabrics layer 4, coarse sand isolation layer 5 and planting soil layer 6. The planting soil layer 6 is sunken downwards to form a water storage cavity 7. The sandy soil layer 2, the purification permeable layer 3, the non-woven fabric layer 4 and the coarse sand isolation layer 5 are all sunken downwards, and the sunken shapes are all consistent with the sunken shapes of the planting soil layers 6.

The sandy soil layer 2 is formed by uniformly mixing coarse sand in the base soil and compacting, and compared with the base soil, the sandy soil layer not only increases the strength, but also can permeate rainwater. The purification permeable layer 3 is prepared by uniformly mixing one or more of perlite, vermiculite, ceramsite and quartz sand and then bonding the mixture by using an adhesive, and is used for permeating and purifying rainwater. Non-woven fabrics layer 4 is arranged in covering purification permeable layer 3 to prevent that dust and earth from getting into purification permeable layer 3, the life of extension purification permeable layer 3, the filtration and the drainage function of protection purification permeable layer 3. The grit barrier 5 consists only of clean grit. The planting soil 6 consists of soil suitable for the growth of wet plants.

Preferably, the water storage cavity 7 is a groove, the shape of the groove is not limited to a straight line shape, the groove can be designed into a natural bending shape according to landscape design requirements, and the elevation of the groove bottom and the width of the groove can be adaptively changed according to design attractive requirements. And an overflow port is arranged at the downstream of the groove and is connected with a municipal drainage pipeline for draining redundant rainwater.

Preferably, the impoundment chamber 7 is planted with hygrophytes (hygrophytes refer to plants growing in excessively humid places) and mesoplants (mesoplants refer to plants growing on soil with moderate water humidity, good ventilation and moderate nutrition, neither severe drought or water logging can be tolerated, so their morphological structure and physiological characteristics are also between those of xerophytes and hygrophytes) respectively from the bottom towards the edges, and with xerophytes outside the impoundment chamber 7 edges (xerophytes generally refer to suitable types of drought in designated aquatic plants).

Preferably, the thickness of the planting soil layer 6 is 500mm, the thickness of the coarse sand isolating layer 5 is 50mm, the thickness of the purification and water permeable layer 3 is 100mm, and the thickness of the sandy soil layer is 300-500 mm.

Claims

1. Do benefit to gardens greenery patches structure of mating formation that holds drainage, characterized by: comprises a sandy soil layer (2), a purification permeable layer (3), a non-woven fabric layer (4), a coarse sand isolation layer (5) and a planting soil layer (6) which are sequentially paved on base soil (1) from bottom to top; the planting soil layer (6) is sunken downwards to form a water storage cavity (7).

2. A garden green land paving structure facilitating water storage and drainage according to claim 1, wherein: the water storage cavity (7) is a groove or a pit.

3. A garden green land paving structure facilitating water storage and drainage according to claim 2, wherein: the water storage cavity (7) is respectively planted with hygrophytes and mesophytes from the bottom to the edge, and the outer side of the edge of the water storage cavity is planted with xerophytes.

4. A garden green land paving structure facilitating water storage and drainage according to claim 2 or 3, characterized in that: the sandy soil layer (2), the purification permeable layer (3), the non-woven fabric layer (4) and the coarse sand isolation layer (5) are all sunken downwards, and the sunken shapes are all consistent with the sunken shapes of the planting soil layer (6).