A sloping roof greening structure

Abstract

The utility model discloses a kind of slope roof greening structures, including slope roof structure layer, prefabricated step, asphalt waterproof layer, planting soil, high concentration modified hydrophilic polyurethane buffer layer, low concentration modified hydrophilic polyurethane scour prevention layer, drainage vertical pipe filter screen, water collecting pipe filter screen, drainage vertical pipe, water collecting pipe, reservoir, drip irrigation tape;Prefabricated step is set on slope roof structure layer, asphalt waterproof layer is set on slope roof structure layer and prefabricated step surface, high concentration W-OH buffer layer is set on asphalt waterproof layer surface, low concentration W-OH scour prevention layer is set on the surface of planting soil;The utility model's ladder type roof has better water-retention and soil conservation function, by setting two layers of W-OH layer of different concentration, not only can improve the rainwater scouring resistance and water-retention of slope roof surface layer planting soil, also can improve plant survival rate, and reduce the maintenance cost of later period, can effectively improve the greening effect of slope roof.

Description

Technical Field

[0001] This utility model relates to the field of building engineering, and in particular to a greening structure for pitched roofs. Background Technology

[0002] Urban greening is a crucial aspect of urban development, and its importance is increasingly evident with population growth and accelerating urbanization. Among these initiatives, rooftop greening, as an innovative form of urban greening, is playing an increasingly vital role.

[0003] For pitched roofs, traditional greening methods, such as frame-structured roofs and protective netting roofs, cannot meet the requirements for erosion control and water retention during roof greening. Rainwater runoff will cause soil pollution of the walls, blockage of sewers, etc., resulting in difficult and costly maintenance and low plant survival rates. Prefabricated stepped roof structures offer better water and soil retention capabilities. Furthermore, the use of a new type of modified hydrophilic polyurethane (W-OH) further enhances the erosion control and water retention capacity of roof greening. W-OH is a novel water and soil retention material that can react with water in any proportion to quickly form an elastic gel-like solidified layer. This solidified layer has excellent water and soil retention properties, does not harm vegetation, and connects with the soil to form a mesh-like structure, achieving the effect of water and soil retention. This, in turn, promotes plant growth and is a new and highly efficient water and soil conservation material. For example, utility model patent CN 216949135 U discloses a planting slope for roofs, which has a W-OH layer at the top of the planting soil, which can have stronger erosion resistance and water retention in the early stage of vegetation growth, and is beneficial to the development of plant seeds.

[0004] Based on this, introducing prefabricated stepped roof structures and modified water-soluble polyurethane (W-OH) into greening of pitched roofs can effectively solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this application embodiment is to provide a greening structure for pitched roofs. By setting up a prefabricated stepped roof structure and two layers of W-OH with different concentrations, it can not only improve the rainwater erosion resistance of the planting soil on the pitched roof surface, but also have water retention and soil stabilization properties, and improve the survival rate of plants in the planting soil, thereby solving at least one of the technical problems involved in the background art.

[0006] To solve the above-mentioned technical problems, this application is implemented as follows: A greening structure for a pitched roof includes a pitched roof structural layer 1, precast steps 2, an asphalt waterproof layer 3, planting soil 4, a high-concentration W-OH buffer layer 5, a low-concentration W-OH erosion-resistant layer 6, a drainage riser 7, a water collection pipe 8, a water storage tank 13, and a drip irrigation tape 14. The precast steps 2 are fixed sequentially from top to bottom on the pitched roof structural layer 1. The asphalt waterproof layer 3 is disposed on the surfaces of the pitched roof structural layer 1 and the precast steps 2. The high-concentration W-OH buffer layer 5 is disposed on the surface of the asphalt waterproof layer 3. Planting soil 4 is filled between adjacent precast steps 2. The low-concentration W-OH erosion-resistant layer 6 is disposed on the surface of the planting soil 4. A water collection trough is fixed at the lower part of the pitched roof structural layer 1, with the upper part of the water collection trough connected to the water collection pipe 8 and the bottom part connected to the drainage riser 7. The water storage tank 13 is suspended above the planting soil layer. The drip irrigation tape 14 is disposed on the downward-facing side of the precast steps 2.

[0007] Optionally, the pitched roof structure layer 1 is constructed by cast-in-place method, with a groove 50mm deep and 300mm wide reserved; the precast steps 2 are fixed in the groove.

[0008] Optionally, the prefabricated step 2 is a right-angled trapezoid with an upper base length of 50mm and is completely embedded in the sloping roof structure layer. The trapezoid is 300mm high and the lower base length is 300mm~400mm. The interval between two adjacent prefabricated steps 2 is 400mm~500mm.

[0009] Optionally, the asphalt waterproof layer 3 is made of petroleum asphalt waterproof coating with a thickness of 4mm to 6mm; the length, width and height of the water storage tank 13 are 30cm×30cm×40cm, the diameter of the drip irrigation tape 14 is 16mm, and the perforation spacing of the drip irrigation tape 14 is 15cm to 20cm.

[0010] Optionally, the lower layer of planting soil 4 is loam, and the upper layer is nutrient soil.

[0011] Optionally, the high-concentration W-OH buffer layer 5 has a W-OH concentration of 10%~12%, a thickness of 3mm~5mm, and a spraying rate of 2.0L / m³. 2 The low-concentration W-OH erosion-resistant layer 6 has a W-OH concentration of 3% to 5%, a thickness of 1 mm to 2 mm, and a spraying rate of 1.4 L / m³. 2 .

[0012] Optionally, the water collection pipe 8 has an outer diameter of 50 mm and a wall thickness of 2 mm; a water collection pipe filter screen 10 is provided at the water inlet end of the water collection pipe 8.

[0013] Optionally, the pitched roof structure layer 1 is pre-embedded with T-shaped embedded parts, and the T-shaped embedded parts are fixedly connected to the prefabricated steps 2 with anchors.

[0014] Optionally, the T-shaped embedded part is a fixing bolt 11; the anchor is an internal hexagonal nut 12; the prefabricated step 2 has a fine channel 21 that mates with the fixing bolt 11 and a coarse channel 22 that mates with the internal hexagonal nut 12; the fine channel 21 and the coarse channel 22 are interconnected.

[0015] The beneficial effects of the embodiments of this application are as follows: 1. The stepped roof design makes the soil surface parallel to the ground, preventing the soil from sliding under its own weight, effectively stabilizing the soil, and reducing the erosion of the soil by rainwater.

[0016] 2. By setting a high-concentration W-OH buffer layer on the asphalt waterproof layer, the waterproof function can be achieved, and the impact of the roof structure on the planting soil can be reduced.

[0017] 3. By setting a low-concentration W-OH anti-erosion layer on the surface of the planting soil, the erosion resistance of the planting soil can be effectively improved, while also having water retention properties, thereby effectively improving the seed germination rate and the greening effect of the roof.

[0018] 4. The pre-embedded fixing structure is set up to fix the pitched roof structure layer and the prefabricated steps into one piece, which increases the stability of the structure.

[0019] 5. Using drip irrigation improves water utilization, reduces water evaporation, and maintains suitable soil moisture content, thereby improving soil quality. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 A cross-sectional view of the green roof structure provided in the embodiments of this application.

[0021] Figure 2 An elevation view of the green roof structure provided in the embodiments of this application.

[0022] Figure 3 This is a diagram illustrating the connection between the pitched roof structure layer and the prefabricated steps in the embodiment.

[0023] Among them, 1 is the sloping roof structural layer, 2 is the precast steps, 21 is the narrow channel, 22 is the coarse channel, 3 is the asphalt waterproof layer, 4 is the planting soil, 5 is the high-concentration W-OH buffer layer, 6 is the low-concentration W-OH anti-erosion layer, 7 is the drainage riser, 8 is the water collection pipe, 9 is the drainage riser filter screen, 10 is the water collection pipe filter screen, 11 is the fixing bolt, 12 is the internal hex nut, 13 is the water storage tank, and 14 is the drip irrigation tape. Specific implementation methods The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1 Please see Figure 1 and Figure 2 As shown in the embodiment of this application, a green roof structure is provided, including a roof structure layer 1, precast steps 2, an asphalt waterproof layer 3, planting soil 4, a high-concentration W-OH buffer layer 5, a low-concentration W-OH anti-erosion layer 6, a drainage riser 7, a water collection pipe 8, a drainage riser filter screen 9, a water collection pipe filter screen 10, a water storage tank 13, and a drip irrigation tape 14. The precast steps 2 are set on the roof structure layer 1, the asphalt waterproof layer 3 is set on the surface of the roof structure layer 1 and the precast steps 2, the high-concentration W-OH buffer layer is set on the surface of the asphalt waterproof layer, the low-concentration W-OH anti-erosion layer is set on the surface of the planting soil, the water storage tank 13 is suspended on the planting soil layer, and the drip irrigation tape 14 is set on the downward-facing side of the precast steps 2.

[0025] In this application, W-OH is a modified hydrophilic polyurethane.

[0026] The prefabricated step 2 is a right-angled trapezoid with an upper base length of 50mm and is completely embedded in the sloping roof structure layer. The trapezoid is 300mm high and the lower base length is 300mm~400mm. The two steps are spaced 400mm~500mm apart.

[0027] By setting up prefabricated stepped pitched roofs, the soil surface is made parallel to the ground, preventing the soil from sliding under its own weight, which can effectively stabilize the soil and reduce the erosion of the soil by rainwater.

[0028] The high-concentration W-OH buffer layer 5 is uniformly sprayed onto the surface of the asphalt waterproof layer 3. The high-concentration W-OH buffer layer 5 is formulated with modified hydrophilic polyurethane, with a concentration of 10%~12%, and a spraying rate of 2.0 L / m³. 2 .

[0029] Furthermore, an anti-aging agent of 0.5% to 0.9% by mass of the modified hydrophilic polyurethane is added to the high-concentration W-OH buffer layer 5.

[0030] In one specific embodiment, the high-concentration W-OH buffer layer 5 has a concentration of 10% and a thickness of 5 mm.

[0031] By spraying a high-concentration W-OH buffer layer 5 onto the surface of the asphalt waterproof layer, the adverse effects of high-temperature expansion of concrete can be effectively reduced, and it can also act as a water barrier to prevent water infiltration, thereby improving the overall waterproof performance of the structure.

[0032] The low-concentration W-OH erosion-resistant layer 6 is applied to the surface of the planting soil 4. The concentration of the low-concentration W-OH erosion-resistant layer 6 is 3%~5%, and the spraying rate is 1.4L / m². 2 .

[0033] The low-concentration W-OH erosion-resistant layer 6 also contains 0.2% to 0.3% by mass of the modified hydrophilic polyurethane as an anti-ultraviolet agent.

[0034] In one specific embodiment, the low-concentration W-OH anti-erosion layer 6 has a concentration of 3.5% and a thickness of 2 mm.

[0035] In one specific embodiment, the length, width and height of the water storage tank (13) are 30cm×30cm×40cm, the diameter of the drip irrigation tape 14 is 16mm, and the perforation spacing of the drip irrigation tape 14 is 15cm~20cm.

[0036] By setting a low-concentration W-OH erosion-resistant layer on the surface of the planting soil, the erosion resistance of the planting soil can be effectively improved, while also having water retention properties, thereby effectively improving seed germination rate and the greening effect of the roof.

[0037] Example 2 like Figure 3 As shown, to ensure the stability of the precast step 2, fixing bolts 11 are pre-embedded in the roof structure layer 1. These fixing bolts 11 pass through the precast step 2 and are fixedly connected. Further, the precast step 2 forms a narrow channel 21 that mates with the fixing bolts 11 and a wide channel 22 that mates with the hexagonal socket nut 12; the channel 21 and the wide channel 22 are interconnected. After the hexagonal socket nut 12 is threadedly connected to the fixing bolts 11, it is secured to the step between the narrow channel 21 and the wide channel 22, thus further fixing the precast step 2. After the hexagonal socket nut 12 is fixed, a waterproof structure such as asphalt can be filled into the wide channel 22.

[0038] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0039] Furthermore, it should be noted that the scope of the methods and systems in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0040] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A greening structure for pitched roofs, characterized in that, The structure includes a pitched roof structural layer (1), precast steps (2), an asphalt waterproof layer (3), planting soil (4), a high-concentration W-OH buffer layer (5), a low-concentration W-OH erosion-resistant layer (6), drainage risers (7) and water collection pipes (8), a water storage tank (13), and drip irrigation tape (14); the precast steps (2) are fixed to the pitched roof structural layer (1) from top to bottom, and the asphalt waterproof layer (3) is set on the surface of the pitched roof structural layer (1) and the precast steps (2); the high-concentration W-OH buffer layer (5) is fixed to the surface of the pitched roof structural layer (1) and the precast steps (2); the high-concentration W-OH erosion-resistant layer (6) is fixed to the surface of the pitched roof structural layer (1) and the precast steps (2). A W-OH buffer layer (5) is set on the surface of the asphalt waterproof layer (3); planting soil (4) is filled between adjacent precast steps (2); the low concentration W-OH anti-erosion layer (6) is set on the surface of the planting soil (4); the water storage tank (13) is suspended on the planting soil layer; the drip irrigation tape (14) is set on the downward side of the precast steps; a water collection trough is fixed at the bottom of the sloping roof structure layer (1), the upper part of the water collection trough is connected to the water collection pipe (8), and the bottom is connected to the drainage riser (7).

2. The greening structure for a pitched roof according to claim 1, characterized in that, The sloping roof structure layer (1) is constructed by cast-in-place method, with a groove 50mm deep and 300mm wide reserved; the precast steps (2) are fixed in the groove.

3. The greening structure for a pitched roof according to claim 1, characterized in that, The prefabricated step (2) is a right trapezoid with an upper base length of 50mm and is completely embedded in the roof structure layer. The height of the trapezoid is 300mm and the lower base length is 300mm~400mm. The interval between two adjacent prefabricated steps (2) is 400mm~500mm.

4. The greening structure for a pitched roof according to claim 1, characterized in that the asphalt... The waterproof layer (3) is made of petroleum asphalt waterproof coating with a thickness of 4mm~6mm; the length, width and height of the water storage tank (13) are 30cm×30cm×40cm, the diameter of the drip irrigation tape (14) is 16mm, and the spacing between the holes in the drip irrigation tape (14) is 15cm.

5. The greening structure for a pitched roof according to claim 1, characterized in that, The lower layer of the planting soil (4) is loam, and the upper layer is nutrient soil.

6. The greening structure for a pitched roof according to claim 1, characterized in that, The high-concentration W-OH buffer layer (5) has a W-OH concentration of 10%~12%, a thickness of 3mm~5mm, and a spraying rate of 2.0L / m³. 2 The low-concentration W-OH erosion-resistant layer (6) has a W-OH concentration of 3% to 5%, a thickness of 1 mm to 2 mm, and a spraying rate of 1.4 L / m³. 2 .

7. A greening structure for pitched roofs according to claim 1, characterized in that, The water collection pipe (8) has an outer diameter of 50 mm and a wall thickness of 2 mm; a water collection pipe filter screen (10) is provided at the water inlet end of the water collection pipe (8).

8. A greening structure for a pitched roof according to claim 7, characterized in that, The diameter of the water collection pipe filter screen (10) is 48mm; the outer diameter of the drainage riser (7) is 100mm, the wall thickness is 3.2mm, and the spacing is 5m~10m; a water riser filter screen (9) is provided on the top of the drainage riser (7), and the water riser filter screen (9) is a stainless steel filter screen with a diameter of 96.8mm.

9. A greening structure for a pitched roof according to claim 1, characterized in that, The pitched roof structure layer (1) is pre-embedded with T-shaped embedded parts, and the T-shaped embedded parts are fixedly connected to the anchors through the prefabricated steps (2).

10. A greening structure for a pitched roof according to claim 9, characterized in that, The T-shaped embedded part is a fixing bolt (11); the anchor is an internal hexagonal nut (12); the prefabricated step (2) has a fine channel (21) that cooperates with the fixing bolt (11) and a coarse channel (22) that cooperates with the internal hexagonal nut (12); the fine channel (21) and the coarse channel (22) are interconnected.

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