An assembled integrated drainage module and roof waterproof structure

Abstract

This invention discloses a prefabricated integrated drainage module and roof waterproofing structure, belonging to the technical field of basement roof waterproofing structures. It includes multiple prefabricated modules, a connecting mechanism, and arc-shaped drainage channels. The connecting mechanism is located at the edge of the prefabricated modules and is used to splice multiple prefabricated modules. The arc-shaped drainage channels are located in the middle of the prefabricated modules. The arc-shaped drainage channels on two adjacent prefabricated modules are aligned and connected. When the seepage water reaches the top of the arc-shaped drainage channels, a siphon effect is generated between the multiple arc-shaped drainage channels, diverting the accumulated water to the end of the arc-shaped drainage channels for outflow. The prefabricated module includes a woven geotextile filter layer, a honeycomb permeable layer, a slope-forming layer, and an impermeable layer arranged sequentially. The slope-forming layer has a drainage slope. This invention integrates filtration, permeability, slope-forming, drainage, and seepage prevention functions through prefabricated modules, achieving effective and rapid drainage and effectively preventing seepage water from the planting soil from entering the basement.

Description

Technical Field

[0001] This invention relates to the field of waterproof structure technology for basement roofs, specifically to a prefabricated integrated drainage module and a waterproof structure for the roof. Background Technology

[0002] In civil building design, basements are often used as garages or important electrical and intelligent equipment rooms. The roof of the basement is often a green roof, and the waterproof and drainage structure of the roof is the key to ensuring the structural safety and functionality of the basement.

[0003] Currently, the conventional waterproof and drainage structure of a basement roof slab with planting features, from top to bottom, as follows: planting soil and vegetation layer, filter layer, permeable geotextile, plastic drainage grid drainage layer, 50-70mm thick C20 fine stone concrete protective layer, slope layer, plastic film isolation layer, root penetration resistant waterproof layer, ordinary waterproof layer, 20mm thick 1:3 cement mortar slope layer, and waterproof reinforced concrete roof slab. The structure below the fine stone concrete protective layer is the waterproof structure, and the structure above it is the drainage structure. The drainage layer can also use local drainage blind pipes to assist drainage.

[0004] However, due to the multiple layers of drainage and waterproofing structure, once damaged, the drainage function is lost, and the seepage water in the planting soil will accumulate for a long time, corroding the waterproofing layer below the fine stone concrete protective layer. If the waterproofing layer below the fine stone concrete protective layer is damaged, the seepage water will continue to seep down to the basement roof slab, causing dampness and dripping water on the basement roof slab. In severe cases, it will damage the roof slab structural layer, causing the roof slab to crack and affecting the service life of the drainage structure. Summary of the Invention

[0005] The purpose of this invention is to provide a prefabricated integrated drainage module and a waterproof roof structure. By setting up an integrated drainage module, it is possible to effectively prevent water seepage from the planting soil from entering the basement and avoid dampness, dripping, and cracking of the roof, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated integrated drainage module, comprising multiple prefabricated modules, a connecting mechanism, and an arc-shaped drainage channel. The connecting mechanism is located at the edge of the prefabricated module and is used to splice multiple prefabricated modules. The arc-shaped drainage channel is located in the middle of the prefabricated module. The arc-shaped drainage channels on two adjacent prefabricated modules after splicing are aligned and connected. When the infiltrated water reaches the top of the arc-shaped drainage channel, a siphon effect is generated between the multiple arc-shaped drainage channels, which diverts the accumulated water to the end of the arc-shaped drainage channel and out. The prefabricated module includes a woven geotextile layer, a honeycomb permeable layer, a slope-finding layer, and an impermeable layer arranged in sequence. The arc-shaped drainage channel extends from the honeycomb permeable layer to the impermeable layer. The slope-finding layer has a drainage slope to guide the infiltrated water from the honeycomb permeable layer to the arc-shaped drainage channel.

[0007] Preferably, the impermeable layer is a base plate with uneven granules on its lower surface. The uneven granules on the base plate form drainage channels distributed in a grid pattern. The drainage channels are attached to the fine stone concrete protective layer and are used to drain water accumulated due to damage or leakage of the prefabricated module.

[0008] Preferably, the woven geotextile filter layer and the honeycomb permeable layer are fixed together by PP plastic blind rivets, and the honeycomb permeable layer, the slope-finding layer and the impermeable layer are integrally formed.

[0009] Preferably, the prefabricated module is a square structure made of PP material, and the arc-shaped drainage channel is arranged in a cross-shaped structure, with multiple arc-shaped drainage channels forming a well-connected drainage network.

[0010] Preferably, the lower end and sidewalls of the arc-shaped drainage channel are connected to the honeycomb permeable layer, and the upper surface of the base plate is provided with a clearance notch that matches the arc-shaped surface of the arc-shaped drainage channel.

[0011] Preferably, the slope-finding layer is a sloping structure with a slope of 2°, and the top of the slope structure is located at the edge of the prefabricated module, while the bottom of the slope structure is located at the side wall of the arc-shaped drainage ditch.

[0012] Preferably, the connecting mechanism includes mounting slots fixed on adjacent two sides of the prefabricated module and mounting buckles fixed on the other two sides of the prefabricated module, wherein the mounting slots and mounting buckles are matched.

[0013] Preferably, the mounting slot is a concave structure, the mounting buckle is a convex structure, and the mounting slot and the impermeable layer are integrally formed, and the mounting buckle and the honeycomb permeable layer are integrally formed.

[0014] Preferably, the connecting mechanism further includes rubber waterstops located at the four corners of the prefabricated module, the thickness of which is the same as the thickness of the prefabricated module.

[0015] The present invention also provides a waterproof roof structure, comprising a prefabricated integrated drainage module as described above, and further comprising planting soil and vegetation layer and fine stone concrete protective layer. The prefabricated module is located between the planting soil and vegetation layer and the fine stone concrete protective layer. A waterproof structural layer is provided below the fine stone concrete protective layer. A roof is provided below the waterproof structural layer. Drainage ditch is provided around the roof. Water passage holes are provided at the joints of the prefabricated module. The water passage holes are respectively connected to the arc-shaped drainage channel and the drainage ditch.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention integrates filtration, permeability, slope finding, drainage, and seepage prevention functions into a prefabricated module composed of a woven geotextile filter layer, a honeycomb permeable layer, a slope finding layer, and an impermeable layer arranged in sequence. This achieves efficient and rapid drainage, effectively prevents water seepage from the planting soil from entering the basement, avoids dampness and cracking of the roof slab, and extends the service life of the drainage structure.

[0017] 2. By providing drainage channels on the lower surface of the impermeable layer, the present invention can further discharge water accumulated due to damage or leakage of prefabricated modules, thereby further improving the overall drainage effect.

[0018] 3. This invention uses a slope-forming layer with a drainage slope to eliminate the need for slope finding within the arc-shaped drainage channel, thus eliminating the slope finding process during the construction of the basement roof slab. This not only improves the reliability of drainage but also shortens the construction period. When the water in the arc-shaped drainage channel fills to the top, a siphon effect is generated, which quickly drains the water to the surrounding drainage ditches. The arc-shaped drainage channels are arranged in a crisscross pattern to form a well-connected drainage system, which can effectively and quickly remove water accumulated in the soil layer.

[0019] 4. The present invention, through the connection mechanism set on the prefabricated module, can be prefabricated in the factory and assembled on site according to the installation environment requirements, which can greatly improve the construction quality and project progress.

[0020] 5. This invention uses prefabricated modules made of PP material, which utilizes the compressive strength, aging resistance, and acid and alkali resistance of PP material to reduce the load on the roof and the risk of settlement. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention installed behind the basement ceiling; Figure 2 This is a schematic diagram of the side structure of the prefabricated module of the present invention; Figure 3 This is a top view of the prefabricated module structure of the present invention; Figure 4 This is a bottom view of the prefabricated module structure of the present invention; Figure 5 This is a schematic diagram of the structure after multiple prefabricated modules of the present invention are spliced ​​together.

[0022] In the diagram: 1. Planting soil and vegetation layer; 2. Fine aggregate concrete protective layer; 3. Precast module; 31. Woven geotextile layer; 32. Honeycomb permeable layer; 33. Slope-finding layer; 34. Impermeable layer; 35. Drainage channel; 4. Arc-shaped drainage ditch; 5. Rubber waterstop block; 6. Installation slot; 7. Installation buckle; 8. Waterproof structural layer; 9. Top slab; 10. Drainage ditch; 11. Water passage hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0024] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. Additionally, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0029] Please see Figure 1-5 This invention provides a technical solution: a prefabricated integrated drainage module, including multiple prefabricated modules 3, a connecting mechanism, and an arc-shaped drainage channel 4. It can filter impurities in the cover soil to prevent PP drainage module blockage. The connecting mechanism is located at the edge of the prefabricated module 3 and is used to splice multiple prefabricated modules 3. It can be prefabricated in the factory and assembled on site according to the installation environment requirements, which can greatly improve construction quality and project progress. The arc-shaped drainage channel 4 is located in the middle of the prefabricated module 3. The arc-shaped drainage channels 4 on two adjacent prefabricated modules 3 after splicing are aligned and connected. When the infiltrated water reaches the top of the arc-shaped drainage channel 4, a siphon effect is generated between the multiple arc-shaped drainage channels 4, which diverts the accumulated water to the end of the arc-shaped drainage channel 4 and flows out. The prefabricated module 3 includes a woven geotextile filter layer 31, a honeycomb permeable layer 32, a slope-finding layer 33, and an impermeable layer 34 arranged sequentially. The arc-shaped drainage channel 4 extends from the honeycomb permeable layer 32 to the impermeable layer 34. The woven geotextile filter layer 31 is fixed to the surface of the honeycomb permeable layer 32 and covers the opening of the arc-shaped drainage channel 4. The slope-finding layer 33 has a drainage slope to guide the infiltrated water from the honeycomb permeable layer 32 to the arc-shaped drainage channel 4. The prefabricated module 3 integrates filtration, permeability, slope-finding, drainage, and seepage prevention functions to achieve effective and rapid drainage, effectively prevent infiltrated water in the planting soil from entering the basement, avoid dampness and cracking of the roof slab 9, and extend the service life of the drainage structure.

[0030] Specifically, the impermeable layer 34 is a base plate with uneven granular surfaces on its lower surface. The uneven granules on the base plate form a grid-like drainage channel 35. The drainage channel 35 is attached to the fine stone concrete protective layer 2 and provides stable support through the base plate. At the same time, the uneven granules can increase the friction between the base plate and the fine stone concrete protective layer 2, preventing displacement of the precast module 3 after installation. In addition, the drainage channel 35 can form a second drainage channel. When the precast module 3 is damaged or leakage occurs between the splicing gaps, the accumulated water can diffuse and discharge to the surrounding precast modules 3 through the second drainage channel, realizing emergency leakage drainage.

[0031] Furthermore, the prefabricated module 3 is a square structure made of PP material, and the arc-shaped drainage trough 4 is set in a cross-shaped structure. The cross layout forms a well-connected drainage network, which can effectively and quickly drain the water accumulated in the cover layer. Moreover, the bottom of the arc-shaped drainage trough 4 is flush with the lowest point of the slope layer 33, so that no slope is required in the arc-shaped drainage trough 4.

[0032] Furthermore, the lower end of the arc-shaped drainage channel 4 is connected to the honeycomb permeable layer 32, and the upper surface of the base plate is provided with a clearance notch that matches the arc-shaped surface of the arc-shaped drainage channel 4, so that water accumulated in the honeycomb permeable layer 32 can smoothly enter the arc-shaped drainage channel 4, resulting in a tight fit, no gaps, and no leakage.

[0033] To optimize drainage, the arc-shaped drainage channel 4 located on the base plate has a smooth arc-shaped bottom. The arc-shaped bottom is continuous and smooth, without right angles or dead corners. When the slope is formed to collect water, the water flow can naturally slide along the arc surface to the bottom of the channel, without stagnation, mud accumulation, or impurity buildup. Moreover, when the arc-shaped cross-section is full of water, it is easier to form a full-pipe seal, quickly triggering a siphon and significantly improving the drainage speed, achieving rapid and strong drainage. The arc-shaped surface can completely fit with the arc-shaped clearance notch on the base plate, ensuring gapless installation, no leakage, and better sealing. Since the spliced ​​arc-shaped drainage channel 4 is a grid-like through channel, once water enters, it can spread in any direction. When the arc-shaped drainage channel 4 is full of water, the accumulated water can spread and be discharged to the surrounding prefabricated modules 3 through the arc-shaped drainage channel 4, achieving full-area coordinated drainage. If there is a local blockage, it will not affect the overall drainage effect, improving system redundancy and safety.

[0034] Specifically, the slope-finding layer 33 is a sloping structure with a slope of 2°. The 2° slope constitutes the drainage slope, and the top of the slope structure is located at the edge of the prefabricated module 3, while the bottom of the slope structure is located on the side wall of the arc-shaped drainage channel 4. This allows the arc-shaped drainage channel 4 to collect water without dead angles, eliminating the need for on-site slope-finding procedures, shortening the construction period, and ensuring slope accuracy.

[0035] Furthermore, the woven geotextile layer 31 and the honeycomb permeable layer 32 are fixed together using PP plastic blind rivets. The honeycomb permeable layer 32, the slope-finding layer 33, and the impermeable layer 34 are integrally formed. During the preparation of the prefabricated module 3, molten PP is first used to fill the cavity of the honeycomb permeable layer, and the central arc-shaped drainage channel and the cavity of the slope-finding layer are filled simultaneously. Finally, the impermeable layer, the uneven particles, the mounting clips, and the mounting slots are filled, and the honeycomb permeable layer, the slope-finding layer, and the base plate are solidified into a whole at one time. Then, PP plastic blind rivets are used to evenly rivet along the edge and central grid points of the solidified whole, with a rivet spacing of 50-100mm. This makes the woven geotextile layer 31, the honeycomb permeable layer 32, and the impermeable layer 34 a continuous PP matrix, increasing the overall firmness of the prefabricated module 3, preventing separation and material leakage, and ensuring high precision in factory prefabrication.

[0036] To facilitate the splicing and installation of multiple prefabricated modules 3 and make them suitable for use in basements of different sizes, the connecting mechanism includes mounting slots 6 fixed on the adjacent two sides of the prefabricated module 3 and mounting buckles 7 fixed on the other two sides of the prefabricated module 3. The mounting slots 6 and mounting buckles 7 are matched, enabling tool-free and quick splicing between two adjacent prefabricated modules 3, with accurate positioning, tight joints, and improved construction efficiency.

[0037] Furthermore, the mounting slot 6 has a concave structure, and the mounting buckle 7 has a convex structure. The mounting slot 6 and the impermeable layer 34 are integrally formed, and the mounting buckle 7 and the honeycomb permeable layer 32 are integrally formed, so that there is no splicing gap between the mounting slot 6 and the mounting buckle 7, reducing the probability of leakage due to splicing gaps. Moreover, the gap between the concave structure and the convex structure is 0.5-1mm, which allows the mounting slot 6 and the mounting buckle 7 to be inserted smoothly and can be self-locking to prevent detachment.

[0038] Furthermore, the connecting mechanism also includes rubber waterstop blocks 5 located at the four corners of the prefabricated module 3. The thickness of the rubber waterstop blocks 5 is the same as the thickness of the prefabricated module 3. The rubber waterstop blocks 5 are used to seal the corner gaps of the prefabricated module 3 after splicing, so as to stop water seepage and make the splicing of the prefabricated module 3 more flat and tight.

[0039] The present invention also provides a waterproof roof structure, comprising a prefabricated integrated drainage module as described above, and further comprising a planting soil and vegetation layer 1 and a fine stone concrete protective layer 2. The prefabricated module 3 is located between the planting soil and vegetation layer 1 and the fine stone concrete protective layer 2. A waterproof structural layer 8 is provided below the fine stone concrete protective layer 2. A roof slab 9 is provided below the waterproof structural layer 8. Drainage ditches 10 are provided around the roof slab 9. Water passage holes 11 are provided at the joints of the prefabricated module 3. The water passage holes 11 are respectively connected to the arc-shaped drainage channel 4 and the drainage ditch 10.

[0040] like Figure 1 As shown, the prefabricated integrated drainage module is suitable for engineering parts requiring both drainage and waterproofing protection, such as green roofs in basements of civil buildings, green garage roofs, and roof gardens. The following installation procedure is followed when installing this prefabricated integrated drainage module: S1. Lay a waterproof structural layer 8 above the top slab 9, and pour a fine stone concrete protective layer 2 above the waterproof structural layer 8. S2. Drainage ditch 10 is built around the basement roof slab 9, and drainage interface is reserved; S3. Place the precast module 3 on top of the fine stone concrete protective layer 2, connect two adjacent precast modules 3 through a connecting mechanism, and place rubber waterstop blocks 5 at the corners of the precast module 3 to seal the corner gaps. S4. A water passage hole 11 is opened at the splicing joint of the prefabricated module 3, so that the water passage hole 11 connects the arc-shaped drainage channel 4 and the drainage ditch 10 at the same time, ensuring that the drainage path is unobstructed. S5. Inspect the joints, the surrounding rubber waterstops 5 and the water passage holes 11, and seal them with structural adhesive. S6. Conduct a short-term water test to ensure that the water can smoothly flow into the arc-shaped drainage channel 4 and into the drainage ditch 10. S7. Backfill planting soil on top of prefabricated module 3 and lay a vegetation layer; By laying the prefabricated integrated drainage module on the basement roof slab 9, above the fine stone concrete protective layer 2, and below the planting soil and vegetation layer 1, the roof slab 9 is a waterproof reinforced concrete roof slab that provides structural support for the entire drainage system. The waterproof structural layer 8 is located below the fine stone concrete protective layer 2. The waterproof structural layer 8 includes a root-penetration resistant waterproof layer and an ordinary waterproof layer, and is the main waterproof barrier of the basement roof slab 9. Drainage ditches 10 are set around the basement roof slab 9 or in the designated water catchment area. Water passage holes 11 are set at the splicing joints of the prefabricated module 3 or at the ends of the drainage ditch. The water passage holes 11 connect the arc-shaped drainage ditch 4 and the drainage ditch 10 to realize the drainage of accumulated water. During drainage, rainwater infiltrates from the planting soil and vegetation layer 1, first filtering soil and impurities through the woven geotextile layer 31 on the top surface of the precast module 3, and then entering the honeycomb permeable layer 32. Guided by the slope-finding layer 33, the infiltrated water in the honeycomb permeable layer 32 flows from the edge of the precast module 3 towards the central cross-shaped drainage ditch 4. Since the bottom of the arc-shaped drainage ditch 4 is flush with the lowest point of the slope-finding layer 33, water is collected without dead angles. The water level in the arc-shaped drainage ditch 4 gradually rises. When the water reaches the top of the arc-shaped drainage ditch 4, a siphon effect is formed between the multiple arc-shaped drainage ditch 4, causing the water to... The water flows at high speed along the cross-shaped drainage channel to the end of the module, and then flows out through the water passage 11. The water discharged through the water passage 11 flows into the drainage ditch 10 around the basement roof slab 9, and is then discharged into the municipal pipe network or collection well by the drainage ditch 10. In addition, a small amount of leakage or local blockage water will enter the grid-like drainage channel at the bottom of the prefabricated module 3, and spread laterally to the adjacent prefabricated module 3 by the drainage channel 35, and finally flow into the drainage ditch 10. The impermeable layer 34 prevents water from seeping down, protects the waterproof layer below and the roof slab 9, and prevents water seepage into the basement, and prevents the roof slab 9 from becoming damp, dripping, and cracking.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated integrated drainage module, characterized in that: It includes multiple prefabricated modules (3), a connecting mechanism and an arc-shaped drainage channel (4). The connecting mechanism is located at the edge of the prefabricated module (3) and is used to splice multiple prefabricated modules (3). The arc-shaped drainage channel (4) is set in the middle of the prefabricated module (3). The arc-shaped drainage channels (4) on two adjacent prefabricated modules (3) after splicing are aligned and connected. When the infiltrated water fills to the top of the arc-shaped drainage channel (4), a siphon effect is generated between the multiple arc-shaped drainage channels (4) to guide the accumulated water to the end of the arc-shaped drainage channel (4) and out. The prefabricated module (3) includes a woven geotextile filter layer (31), a honeycomb permeable layer (32), a slope-finding layer (33), and an impermeable layer (34) arranged in sequence. The arc-shaped drainage channel (4) extends from the honeycomb permeable layer (31) to the impermeable layer (34). The slope-finding layer (33) has a drainage slope and is used to divert the infiltrated water of the honeycomb permeable layer (32) to the arc-shaped drainage channel (4).

2. The prefabricated integrated drainage module according to claim 1, characterized in that: The impermeable layer (34) is a base plate with concave and convex granules on the lower surface. The concave and convex granules on the base plate form drainage channels (35) distributed in a grid pattern. The drainage channels (35) are attached to the fine stone concrete protective layer (2) and are used to drain water caused by damage or leakage of the prefabricated module (3).

3. The prefabricated integrated drainage module according to claim 2, characterized in that: The woven geotextile filter layer (31) and the honeycomb permeable layer (32) are fixed together by PP plastic pull rivets. The honeycomb permeable layer (32), the slope-finding layer (33) and the impermeable layer (34) are integrally formed.

4. The prefabricated integrated drainage module according to claim 2, characterized in that: The prefabricated module (3) is a square structure made of PP material, and the arc-shaped drainage channel (4) is set in a cross-shaped structure. Multiple arc-shaped drainage channels (4) form a well-connected drainage network.

5. A prefabricated integrated drainage module according to claim 4, characterized in that: The lower end and sidewall of the arc-shaped drainage channel (4) are connected to the honeycomb permeable layer (32), and the upper surface of the base plate is provided with a clearance notch that matches the arc surface of the arc-shaped drainage channel (4).

6. The prefabricated integrated drainage module according to claim 5, characterized in that: The slope-finding layer (33) is a sloping structure with a slope of 2°, and the top of the slope structure is located at the edge of the prefabricated module (3), while the bottom of the slope structure is located on the side wall of the arc-shaped drainage ditch (4).

7. A prefabricated integrated drainage module according to claim 6, characterized in that: The connecting mechanism includes mounting slots (6) fixed on the adjacent two sides of the prefabricated module (3) and mounting buckles (7) fixed on the other two sides of the prefabricated module (3). The mounting slots (6) and mounting buckles (7) are matched.

8. The prefabricated integrated drainage module according to claim 7, characterized in that: The mounting slot (6) is concave, the mounting buckle (7) is convex, and the mounting slot (6) and the impermeable layer (34) are integrally formed, and the mounting buckle (7) and the honeycomb permeable layer (32) are integrally formed.

9. A prefabricated integrated drainage module according to claim 8, characterized in that: The connecting mechanism also includes rubber waterstop blocks (5) located at the four corners of the prefabricated module (3), and the thickness of the rubber waterstop blocks (5) is the same as the thickness of the prefabricated module (3).

10. A roof waterproofing structure comprising a prefabricated integrated drainage module as described in any one of claims 1-9, characterized in that: It also includes a planting soil and vegetation layer (1) and a fine stone concrete protective layer (2). The prefabricated module (3) is located between the planting soil and vegetation layer (1) and the fine stone concrete protective layer (2). A waterproof structural layer (8) is provided below the fine stone concrete protective layer (2). A top plate (9) is provided below the waterproof structural layer (8). Drainage ditches (10) are provided around the top plate (9). Water passage holes (11) are provided at the splicing joints of the prefabricated module (3). The water passage holes (11) are connected to the arc-shaped drainage channel (4) and the drainage ditch (10) respectively.

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