Epidemic prevention type building greening site for preventing viruses from polluting soil and underground water

Abstract

The utility model discloses an epidemic prevention type building greening site capable of preventing viruses from polluting soil and underground water, belongs to the field of ecological buildings, and solves the problem that rainwater of an epidemic prevention type building carries viruses to cause environmental pollution. A plurality of water collecting tanks are arranged in a greening field around a building, the greening field sequentially comprises a plain soil layer, a first impermeable film, a first ceramsite layer, a first non-woven fabric, a first coarse sand layer, a first planting soil layer and a lawn from bottom to top, the first ceramsite layer is connected with the water collecting tanks through first seepage pipes, and the water collecting tanks are connected to a disinfection tank through drainage pipes. Rainwater in the epidemic prevention type building greening site is passively collected, treated and then discharged, and viruses are prevented from being diffused and spread along with the rainwater and soil.

Description

Technical Field

[0001] The utility model belongs to the field of ecological buildings, and in particular relates to an epidemic prevention type building greening site which can prevent viruses from contaminating soil and groundwater. Background Art

[0002] Public health events are highly sudden, involving a high risk of water, environmental, and food contamination that seriously endangers public health. Pathogens migrate during movement and diffusion in soil and groundwater. Viruses can migrate from pollution sources into groundwater through unsaturated soil, thereby contaminating drinking water. They can survive and migrate hundreds of meters in the pores of aquifer soil. Since there are generally many pathogens in the roads, squares, and green areas of the epidemic prevention building site, in order to prevent rainwater from infiltrating through the green area and contaminating the underground soil and groundwater, the use of passive collection and treatment building construction technology is a necessary measure to achieve timely and effective prevention of hidden dangers, thereby reducing environmental and economic costs, and effectively achieving passive collection and treatment, which is conducive to the sustainable development of the green ecological environment of the site. Utility Model Content

[0003] The utility model aims to provide an epidemic prevention type building greening site which can prevent viruses from contaminating soil and groundwater, so as to solve the problem that rainwater of epidemic prevention type buildings carries viruses and causes environmental pollution.

[0004] The technical solution of the utility model is: an epidemic prevention type building greening site for preventing viruses from contaminating soil and groundwater, a plurality of water collection pools are arranged in the greening site around the building, the greening site is composed of a plain soil layer, a first impermeable membrane, a first ceramsite layer, a first non-woven fabric, a first coarse sand layer, a first planting soil layer and a lawn from bottom to top, the first ceramsite layer is connected to the water collection pool through a first seepage pipe, and the water collection pool is connected to a disinfection pool through a drainage pipe.

[0005] As a further improvement of the utility model, a sedimentation area is provided at the bottom of the water collection tank, and the drainage pipe is located above the sedimentation area.

[0006] As a further improvement of the utility model, the first seepage pipe is arranged to slope toward the water collection tank.

[0007] As a further improvement of the utility model, the drainage pipe is arranged to slope toward the disinfection pool.

[0008] As a further improvement of the utility model, a top cover is provided on the top of the water collecting pool, and a water permeable hole is opened on the top cover.

[0009] As a further improvement of the utility model, a plurality of tree pits are provided in the green area around the building, and the tree pits are filled with a second anti-seepage membrane, a second expanded clay layer, a second non-woven fabric, a second coarse sand layer and a second planting soil layer from bottom to top, and the second expanded clay layer is connected to the water collection tank through a second seepage pipe.

[0010] As a further improvement of the utility model, the second seepage pipe is arranged to slope toward the water collection tank.

[0011] As a further improvement of the utility model, a rainwater grate is provided on the top of the tree pit.

[0012] The beneficial effects of the utility model are as follows: the utility model realizes the passive collection, treatment and discharge of rainwater in the greening site of the epidemic prevention building. The rainwater infiltrates from the first planting soil layer and the second planting soil layer, passes through the first coarse sand layer and the second coarse sand layer to adsorb viruses, and then passes through the first non-woven fabric and the second non-woven fabric to filter impurities. Then the rainwater flows into the first ceramsite layer and the second ceramsite layer, flows into the water collection pool through the first seepage pipe and the second seepage pipe, and then is sent to the disinfection pool through the drainage pipe. After disinfection treatment, it is discharged to prevent the virus from spreading with the rainwater; the utility model sets a first impermeable membrane under the first ceramsite layer and a second impermeable membrane under the second ceramsite layer to prevent the rainwater from further infiltrating into the plain soil layer, and prevent the virus from spreading with the soil. The utility model has a simple structure and economical cost, and effectively prevents possible pathogens from flowing through the greening site and infiltrating and contaminating the underground soil and groundwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] In the figure: 1-lawn; 2-first planting soil layer; 3-first coarse sand layer; 4-first non-woven fabric; 5-first expanded clay layer; 6-first anti-seepage membrane; 7-plain soil layer; 8-collecting pool; 9-first seepage pipe; 10-drainage pipe; 11-sedimentation area; 12-collecting pool foundation; 13-top cover; 14-pebbles; 16-tree pool; 18-rainwater grate; 19-second expanded clay layer; 20-second non-woven fabric; 21-second coarse sand layer; 22-second planting soil layer; 23-second seepage pipe; 24-second anti-seepage membrane; 25-tree pool foundation. DETAILED DESCRIPTION

[0015] The utility model is described in detail below in conjunction with the accompanying drawings.

[0016] like Figure 1 As shown, an epidemic prevention type building greening site for preventing viruses from contaminating soil and groundwater, a plurality of water collection pools 8 are arranged in the greening site around the building, and the greening site is composed of a plain soil layer 7, a first impermeable membrane 6 (flexible HDPE material), a first ceramsite layer 5, a first non-woven fabric 4 (polyester fiber material), a first coarse sand layer 3, a first planting soil layer 2 and a lawn 1 from bottom to top, the first ceramsite layer 5 is connected to the nearest water collection pool 8 through a first seepage pipe 9, and the water collection pool 8 is connected to the disinfection pool through a drainage pipe 10.

[0017] A sedimentation area 11 is provided at the bottom of the water collection tank 8 , and a drainage pipe 10 is located above the sedimentation area 11 .

[0018] The first seepage pipe 9 is arranged with a slope (3%) toward the water collecting tank 8 .

[0019] The drainage pipe 10 is sloped (0.8%) towards the disinfection tank.

[0020] A concrete drain cover 13 is provided on the top of the water collecting pool 8, and a water permeable hole is provided on the cover 13. Black pebbles 14 with a particle size of 50 mm are scattered on the cover 13.

[0021] When tall trees are transplanted locally on the site, concrete blocks are used to build a tree pit 16, and the tree pit 16 is filled with a second anti-seepage membrane 24, a second ceramsite layer 19, a second non-woven fabric 20 (made of polyester fiber), a second coarse sand layer 21 and a second planting soil layer 22 from bottom to top. The second ceramsite layer 19 is connected to the nearest water collection tank 8 through a second seepage pipe 23.

[0022] The second seepage pipe 23 is arranged with a slope (3%) toward the water collecting pool 8 .

[0023] A rainwater grate 18 is provided on the top of the tree pond 16. Black pebbles 14 with a particle size of 50 mm are scattered on the rainwater grate 18.

[0024] The distance between the 8 water collection tanks is 25m.

[0025] The water collection tank 8 is composed of 150mm thick self-waterproof C25 reinforced concrete (reinforced double-layer bidirectional 10@200), 20mm thick 1:2.5 cement mortar leveling layer, three layers of cement-based penetrating crystalline waterproof coating, 7mm thick polymer cement mortar leveling layer, and 20mm thick polymer cement mortar surface cement finishing from outside to inside. The water collection tank 8 is provided with a water collection tank foundation 12 at the bottom, which is poured with 100mm C15 concrete.

[0026] A tree pit foundation 25 is provided at the bottom of the tree pit 16 and is cast with 100 mm of C15 concrete.

[0027] The first coarse sand layer 3 and the second coarse sand layer 21 have a particle size of 3-5 mm and a laying thickness of 50 mm.

[0028] The first nonwoven fabric 4 and the second nonwoven fabric 20 have a thickness of 0.2 mm.

[0029] The particle size of the first ceramsite layer 5 and the second coarse sand layer 21 is 20-30 mm, and the laying thickness is 100 mm.

[0030] The first impermeable membrane 6 is laid to the water collection pool 8 and turned up 250 mm along its outer wall. The second impermeable membrane 24 is turned up 250 mm along the inner wall of the tree pool.

[0031] The compaction density of the bare soil layer 7 is ≥94%.

[0032] The specification of drain pipe 10 is DN200.

[0033] Rainwater infiltrates from the first planting soil layer 2 and the second planting soil layer 22, passes through the first coarse sand layer 3 and the second coarse sand layer 21 to adsorb viruses, and then passes through the first non-woven fabric 4 and the second non-woven fabric 20 to filter out impurities. Then the rainwater flows into the first expanded clay layer 5 and the second expanded clay layer 19, and flows into the collection pool 8 through the first seepage pipe 9 and the second seepage pipe 23. After sedimentation, it is sent to the disinfection pool through the drainage pipe 10 and discharged after disinfection to prevent the virus from spreading with the rainwater. The first impermeable membrane 6 and the second impermeable membrane 24 prevent the rainwater from further infiltrating into the plain soil layer 7 to prevent the virus from spreading with the soil.

[0034] The utility model is suitable for passively collecting and treating rainwater in quarantine areas of epidemic prevention buildings, effectively preventing pathogens from infiltrating through green areas and polluting underground soil and groundwater, which is beneficial to the sustainable development of the green ecological environment of the area.

Claims

1. An epidemic prevention building greening site for preventing viruses from contaminating soil and groundwater, characterized by: A plurality of water collection pools (8) are arranged in a greening area around a building. The greening area comprises, from bottom to top, a plain soil layer (7), a first impermeable membrane (6), a first ceramsite layer (5), a first non-woven fabric (4), a first coarse sand layer (3), a first planting soil layer (2) and a lawn (1). The first ceramsite layer (5) is connected to the water collection pool (8) via a first seepage pipe (9), and the water collection pool (8) is connected to a disinfection pool via a drainage pipe (10).

2. The anti-epidemic building greening site for preventing viruses from contaminating soil and groundwater according to claim 1, characterized in that: A sedimentation area (11) is provided at the bottom of the water collection tank (8), and the drainage pipe (10) is located above the sedimentation area (11).

3. The anti-epidemic building greening site for preventing viruses from contaminating soil and groundwater according to claim 2, characterized in that: The first seepage pipe (9) is arranged to slope toward the water collection tank (8).

4. The anti-epidemic building greening site for preventing viruses from contaminating soil and groundwater according to claim 3, characterized in that: The drainage pipe (10) is arranged to slope toward the disinfection pool.

5. The anti-epidemic building greening site for preventing viruses from contaminating soil and groundwater according to claim 4, characterized in that: A top cover (13) is provided on the top of the water collecting pool (8), and a water permeable hole is provided on the top cover (13).

6. An epidemic prevention-type building greening site for preventing viruses from contaminating soil and groundwater according to any one of claims 1 to 5, characterized in that: A plurality of tree pits (16) are also provided in the greening area surrounding the building. The tree pits (16) are filled with a second anti-seepage membrane (24), a second ceramsite layer (19), a second non-woven fabric (20), a second coarse sand layer (21) and a second planting soil layer (22) in sequence from bottom to top. The second ceramsite layer (19) is connected to the water collection tank (8) via a second seepage pipe (23).

7. The anti-epidemic building greening site for preventing viruses from contaminating soil and groundwater according to claim 6, characterized in that: The second seepage pipe (23) is arranged to slope toward the water collection tank (8).

8. The anti-epidemic building greening site for preventing viruses from contaminating soil and groundwater according to claim 7, characterized in that: A rainwater grate (18) is provided on the top of the tree pit (16).

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