CN1529020A

CN1529020A - Roofing greening system

Info

Publication number: CN1529020A
Application number: CNA2003101117809A
Authority: CN
Inventors: 陈林东; 钟晓
Original assignee: JINHUI ECOLOGICAL ENVIRONMENT CO Ltd SHENZHEN CITY
Current assignee: JINHUI ECOLOGICAL ENVIRONMENT CO Ltd SHENZHEN CITY
Priority date: 2003-10-08
Filing date: 2003-10-08
Publication date: 2004-09-15
Anticipated expiration: 2023-10-08
Also published as: CN1243895C

Abstract

The invention is a kind of roof greening system; the system is constructed on the roof of building. It includes the overlapped waterproof layer, impound and drainage layer, clay isolating layer, nourishment clay layer and the plants grown on the nourishment clay layer; the impound and drainage layer unit includes large-area drainage window and the first impound slot whose aperture opposites towards the front face, and the second impound slot and the third impound slot whose apertures opposites to the reverse side around the window, the window is filled with ceramic particles; the water for watering the plants passes through the nourishment clay layer, clay isolation layer and penetrates into the impound and drainage layer, some passes through the window and discharged off or enters the humid layer, some are reserved in to slots for applying water when in water depletion.

Description

The roof greening system

Technical field

The present invention relates to horticulture technique, especially the roof greening system that designs at the building roof garden.

Background technology

Because City Building is intensive gradually, the area of leaving afforestation of city for is more and more littler, so building roof garden (being hanging garden) arises at the historic moment, and progressively becomes a kind of fashion.How the roof garden solves and guarantees to meet the roof load requirement well, can guarantee the hydrophobic technical problem of the moisture abundance and the root soil end of plant simultaneously again, just becomes key of success.

Summary of the invention

The present invention is according to the characteristics of roof greening, designed a kind of have retaining and hydrophobic double function, simultaneously can be according to the different roof greening systems that change water retention capacity of various places amount of rainfall.

Roof greening of the present invention system is based upon on the Roofing slab of building roof, comprises waterproofing course that order from bottom to top stacks, retaining drainage blanket, every soil layer, nutrition soil layer and the green plants of plantation on the nutrition soil layer; Described retaining drainage blanket is certain thickness to be arranged and be the structure that the groove window distributes alternately in the plane, wherein a certain retaining hydrophobic units comprise the hydrophobic window that area is bigger and be distributed in hydrophobic window periphery, notch towards first catch basin in front and notch towards second catch basin and the 3rd catch basin of reverse side, be filled with haydite in the described hydrophobic window; Water the water that is sprinkled upon on the green plants through the nutrition soil layer, infiltrate in the retaining drainage blanket every soil layer, a part continues to infiltrate the layer or drain of preserving moisture through hydrophobic window, and a part is stored in catch basin, provides moisture for it during in order to nutrition soil layer lack of water.

According to the difference of territory of use of institute amount of rainfall, native system can add the layer of preserving moisture between described waterproofing course and retaining drainage blanket, for the area of heavy rainfull, do not add the layer of preserving moisture, and then adds the layer of preserving moisture for lack of water area short of rain, keeps the moisture in the nutrition soil layer.

The laying method of retaining drainage blanket can have two kinds in the native system, and a kind of is described retaining drainage blanket forward when placing, and the section configuration of its hydrophobic window periphery catch basin is " M " shape, and the opening of wherein said first catch basin upwards; Open Side Down for second catch basin and the 3rd catch basin.At this moment, the part of water by hydrophobic window enter preserve moisture the layer or drain, another part then is stored in first catch basin.Because Open Side Down for second catch basin and the 3rd catch basin, thus water can not be stored in second catch basin and the 3rd catch basin, but stored portion of air, can keep the well-ventilated of nutrition soil layer and green plants root and fully absorb oxygen.

Another kind of laying method is a described retaining drainage blanket when oppositely placing, and the section configuration of its hydrophobic window one side is " W " shape, and Open Side Down for wherein said first catch basin, and the opening of second catch basin and the 3rd catch basin upwards.At this moment, the part of water by hydrophobic window enter preserve moisture the layer or drain, another part then is stored in second catch basin and the 3rd catch basin, first catch basin is stored air then.Under this kind state, the water-holding capacity of retaining drainage blanket increases, and the air capacity that stores reduces.

The upper edge of described three catch basins has through hole, and these three catch basins are communicated with adjacent hydrophobic window by this through hole, and the through hole that is in retaining drainage blanket edge is communicated with described three catch basins with the roof drainage system.When the water level that stores water in described three catch basins surpasses superposed through hole, water is overflowed by the through hole on top, inflow preserve moisture the layer or directly drain, the through hole that is in the below then can be imported air hydrophobic window, and can enter the root of green plants by the layer of preserving moisture, keep certain soil aeration.

Roof greening of the present invention system can dredge away redundant moisture, guarantees that the moisture of plant roots is fit to, and all soil end retaining bad root phenomenons can not occur, also makes roof have heat insulating function simultaneously, alleviates the burden of floor and reduces manufacturing cost.

Description of drawings

Fig. 1 is the schematic perspective view of roof greening of the present invention system.

Fig. 2 is that cross-sectional schematic is looked on the drainage blanket of retaining described in Fig. 14 left sides.

Fig. 3 is the cross-sectional schematic of roof greening of the present invention system.

Fig. 4 is the cross-sectional schematic of roof greening of the present invention system retaining drainage blanket 4 when oppositely placing.

Fig. 5 is that the drainage blanket of retaining described in Fig. 14 is overlooked partial schematic diagram.

Fig. 6 is that the drainage blanket of retaining described in Fig. 14 is looked up partial schematic diagram.

The specific embodiment

Further describe specific embodiments of the invention below in conjunction with accompanying drawing.

By Fig. 1 to Fig. 6 as can be known, this greening system is based upon on the Roofing slab 1 of building roof, comprises from bottom to top waterproofing course 2 that order stacks, retaining drainage blanket 4, every soil layer 5, nutrition soil layer 6 and the green plants 7 of plantation on nutrition soil layer 6; Described retaining drainage blanket 4 is for to have certain thickness and to be the structure that the groove window distributes alternately in the plane, wherein a certain retaining hydrophobic units comprise the hydrophobic window 41 that area is bigger and be distributed in hydrophobic window 41 peripheries, notch towards first catch basin 42 in front and notch towards second catch basin 43, the 3rd catch basin 44 of reverse side, be filled with haydite 45 in the described hydrophobic window 41; The described water that is sprinkled upon on the green plants 7 of watering is through nutrition soil layer 6, infiltrate in the retaining drainage blankets 4 every soil layer 5, a part continues to infiltrate the layer 3 or drain of preserving moisture through hydrophobic window 41, a part is stored in

catch basin

42 or 43 and 44, provides moisture for it during in order to nutrition soil layer 6 lacks of water.

By among Fig. 2 as can be known, according to the difference of territory of use of institute amount of precipitation, native system can between described waterproofing course 2 and retaining drainage blanket 4, add preserve moisture the layer 3, for the area of heavy rainfull, do not add the layer 3 of preserving moisture, then add the layer 3 of preserving moisture, can keep the moisture in the nutrition soil layer 6 like this for lack of water area short of rain.

By Fig. 2 and Fig. 6 as can be known, the laying method of retaining drainage blanket 4 can have two kinds in the native system, a kind of is that described retaining drainage blanket 4 forwards are when placing, the section configuration of its hydrophobic window 41 peripheral catch basins is " M " shape, the opening of wherein said first catch basin 42 makes progress, and Open Side Down for second catch basin 43 and the 3rd catch basin 44.At this moment, the part of water enters the layer 3 or drain of preserving moisture by hydrophobic window 41, and another part then is stored in first catch basin 42.Because Open Side Down for second catch basin 43 and the 3rd catch basin 44, so can not store water in second catch basin 43 and the 3rd catch basin 44, but stored portion of air, can keep the well-ventilated of nutrition soil layer 6 and green plants 7 roots and fully absorb oxygen.Another kind of laying method is a described retaining drainage blanket 4 when oppositely placing, and the section configuration of its hydrophobic window 41 peripheral catch basins is " W " shape, and Open Side Down for wherein said first catch basin 42, and the opening of second catch basin 43 and the 3rd catch basin 44 upwards.At this moment, the part of water enters the layer 3 or drain of preserving moisture by hydrophobic window 41, and another part then is stored in second catch basin 43 and the 3rd catch basin 44, and first catch basin 42 is stored air then.Under this kind state, the water-holding capacity of retaining drainage blanket 4 increases, and the air capacity that stores reduces.Described three

catch basins

42,43 and 44 upper edge have through hole 46, these three

catch basins

42,43 or 44 are communicated with adjacent hydrophobic window 41 by this through hole 46, and the through hole 46 that is in retaining drainage blanket 4 edges is communicated with described three

catch basins

42,43 or 44 with the roof drainage system.When the water level that stores water in described three

catch basins

42,43 or 44 surpasses superposed through hole 46, water is overflowed by the through hole 46 on top, the inflow layer 3 or directly drain of preserving moisture, the through hole 46 that is in the below then can be imported air hydrophobic window 41, and can enter the root of green plants 7 by the layer 3 of preserving moisture, keep certain soil aeration.

What described waterproofing course 2 used is the antiseep geotextiles, and its effect is that anti-liquid water contact flooring with plant roots, reaches to protect roof not invaded to touch, damage.Geotextiles generally is used for the occasion of antiseeps such as pond on a hill, reservoir, and its antiseep is effective, wear life reached more than 30 years.

The described layer 3 of preserving moisture adopts the felt of preserving moisture, but every square metre of retaining 4-5 of felt kilogram of preserving moisture can increase soil drought resisting function.But in the more area of rainfall, can save need not; Can use in the area that rainfall is few.

Described retaining drainage blanket 4 is made up of a plurality of retaining hydrophobic units that are evenly distributed.Determine the quantity of retaining hydrophobic units according to the size of green coverage.

Claims

1, a kind of roof greening system, this greening system is based upon on the floor (1) of building roof, comprises from bottom to top waterproofing course (2) that order stacks, retaining drainage blanket (4), every soil layer (5), nutrition soil layer (6) and the green plants (7) of plantation on nutrition soil layer (6); It is characterized in that:

Described retaining drainage blanket (4) is for to have certain thickness and to be the structure that the groove window distributes alternately in the plane, wherein a certain retaining hydrophobic units comprise the hydrophobic window (41) that area is bigger and be distributed in hydrophobic window (41) periphery, notch towards first catch basin (42) in front and notch towards second catch basin (43) and the 3rd catch basin (44) of reverse side, be filled with haydite (45) in the described hydrophobic window (41); Described retaining drainage blanket (4) is front or reverse side placement as required;

Water the water that is sprinkled upon on the green plants (7) through nutrition soil layer (6), infiltrate in the retaining drainage blanket (4) every soil layer (5), a part is drained through hydrophobic window (41), a part is stored in catch basin (42) or (43) and (44), provides moisture for it during in order to nutrition soil layer (6) lack of water.

2, according to the described roof greening of claim 1 system, it is characterized in that: between described waterproofing course (2) and retaining drainage blanket (4), add the layer (3) of preserving moisture.

3, roof greening according to claim 1 system, it is characterized in that: when place in described retaining drainage blanket (4) front, the section configuration of the peripheral catch basin of its hydrophobic window (41) is " M " shape, and the opening of wherein said first catch basin (42) upwards is used for retaining; Open Side Down for second catch basin (43) and the 3rd catch basin (44), is used to hold air and can not retaining.

4, roof greening according to claim 1 system, it is characterized in that: described retaining drainage blanket (4) is when oppositely placing, the section configuration of the peripheral catch basin of its hydrophobic window (41) is " W " shape, and Open Side Down for wherein said first catch basin (42), is used to hold air and can not retaining; The opening of second catch basin (43) and the 3rd catch basin (44) upwards is used for retaining.

5, roof greening according to claim 1 system, it is characterized in that: the edge of described first catch basin (42), second catch basin (43) and the 3rd catch basin (44) opening part has through hole (46), above-mentioned three catch basins (42), (43) or (44) are communicated with adjacent hydrophobic window (41) by this through hole (46), and the through hole (46) that is in retaining drainage blanket (4) edge is communicated with above-mentioned three catch basins (42), (43) or (44) with the roof drainage system.

6, roof greening according to claim 1 system is characterized in that: what described waterproofing course (2) used is the antiseep geotextiles.

7, roof greening according to claim 2 system is characterized in that: the described layer (3) of preserving moisture adopts the felt of preserving moisture.

8, roof greening according to claim 1 system is characterized in that: have a plurality of retaining hydrophobic units that are evenly distributed on the described retaining drainage blanket (4).