A multi-layered composite drainage mat

Abstract

The utility model discloses a multilayer composite drainage net mat, including net mat body, net mat body is three -dimensional structure, the upper and lower sides of net mat body are equipped with framework layer one, framework layer two respectively, and the side of framework layer one, framework layer two away from each other all is equipped with support block, and all is equipped with corresponding through -slot on framework layer one, framework layer two, the side of framework layer one, framework layer two away from each other all is equipped with filter cloth structure, and filter cloth structure includes inside geotextile layer one, outside geotextile layer two, and the degree of fineness of geotextile layer one is greater than geotextile layer two, in the utility model discloses filter cloth structure is stable and does not easily jam, and double -deck filter cloth structure forms gradient filtration, improves practicality.

Description

Technical Field

[0001] This utility model relates to the field of engineering materials technology, specifically to a multi-layer composite drainage mesh mat. Background Technology

[0002] Engineering drainage mesh is a three-dimensional mesh structure material made of high-molecular polymers through a special process. Its core function is to efficiently guide and drain liquids or gases, while also providing isolation, protection, and reinforcement. The conventional structure consists of two layers of geotextile wrapping a three-dimensional drainage mesh core in the middle. The mesh core provides a durable and stable drainage channel, can withstand high pressure while maintaining its porosity, and the geotextile acts as a filter, preventing surrounding soil particles from clogging the channel and ensuring long-term drainage efficiency.

[0003] In engineering applications, drainage mesh mats are mainly used for roadbed and pavement drainage, tunnel lining drainage, underground structure waterproofing and drainage, slope protection, and landfill drainage systems. They can significantly improve the stability and durability of engineering structures and effectively prevent problems such as softening, frost heave, leakage, or landslides caused by water accumulation. In practical use, the fine pores of geotextiles used for initial filtration are easily clogged by fine particles, reducing drainage efficiency. If the geotextile pores are too large, they cannot prevent fine particles from entering the core, which may cause internal blockage over time. Furthermore, in soils containing sharp gravel, mats with larger pores are easily punctured. Therefore, there is room for technological improvement. Utility Model Content

[0004] This invention aims to solve the above-mentioned technical problems: geotextile with fine pores is easily clogged by fine particles, reducing drainage efficiency; and if the geotextile pores are too large, it cannot prevent fine particles from entering the core. The invention provides a multi-layer composite drainage mat.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a multi-layer composite drainage mat, including a mat body; the mat body is a three-dimensional structure; the upper and lower sides of the mat body are respectively provided with a first skeleton layer and a second skeleton layer, and the sides of the first skeleton layer and the second skeleton layer that are far apart from each other are provided with support blocks, and the first skeleton layer and the second skeleton layer are each provided with corresponding through grooves.

[0006] Both the first and second skeleton layers have filter cloth structures on their mutually distant sides. The filter cloth structure includes an inner geotextile layer one and an outer geotextile layer two. The density of the first geotextile layer is greater than that of the second geotextile layer.

[0007] Furthermore, the mesh body includes several curved and folded ribs, all of which are made of high-density polyethylene. The ribs intersect and fuse at the intersection points to form a three-dimensional spatial network.

[0008] Furthermore, all the support blocks are hemispherical and hollow inside, and each of the ends that are far apart from each other has a flat surface.

[0009] Furthermore, the support block and the through groove are arranged alternately, and the support block is made of rubber.

[0010] Furthermore, the support blocks are provided with openings at their opposite ends, and the outer side of the openings is fixedly connected to the filter cloth structure.

[0011] Furthermore, the first geotextile layer and the second geotextile layer are needle-punched from PET fibers.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] The system consists of two geotextile layers, one and two, with different densities. In practical use, the relatively dense outer geotextile layer two can intercept particles, preventing them from entering the mattress and causing blockages, thus maintaining the long-term unobstructed flow of internal drainage channels. The relatively sparse geotextile layer one provides structural reinforcement and prevents blockages caused by small particles that occasionally pass through the geotextile layer two.

[0014] By adding skeleton layer one and skeleton layer two between the mesh pad and the filter cloth structure, the filter cloth structure is supported, making it less likely to collapse and stick tightly to the mesh pad, thus avoiding reducing the filtration space. The support blocks set on skeleton layer one and skeleton layer two are arranged opposite each other to further increase the overall internal space, increase the area through which the fluid passes, and reduce the possibility of clogging. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a structural breakdown diagram of this utility model.

[0017] Figure 3 This is a schematic diagram of the skeleton layer one and skeleton layer two of this utility model.

[0018] Figure 4 This utility model is Figure 1 Enlarged view of point A in the middle.

[0019] As shown in the figure: 1. Mattress body, 2. Skeleton layer one, 3. Skeleton layer two, 4. Support block, 5. Through groove, 6. Geotextile layer one, 7. Geotextile layer two. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] Example 1, in conjunction with Appendix Figure 1 , 2A multi-layer composite drainage mat includes a mat body 1, which has a three-dimensional structure. The mat body 1 includes several curved and folded ribs, all made of high-density polyethylene. The ribs intersect and fuse at the intersections to form a three-dimensional spatial network. Thus, the space between the ribs forms countless continuous drainage channels that are not easily crushed, which can quickly gather and guide water flow in all directions. Moreover, the three-dimensional structure has high strength and can disperse the stress from the overlying load, protecting the underlying structure.

[0022] Combined with appendix Figure 1 , 2 1, 2, 3, 4. The upper and lower sides of the mesh body 1 are respectively provided with skeleton layer 1 2 and skeleton layer 2 3. The sides of skeleton layer 1 2 and skeleton layer 2 3 that are far apart from each other are provided with support blocks 4. The support blocks 4 are all hemispherical and hollow inside. Thus, the support blocks 4 form a support between the mesh body and the outer filter cloth structure, which not only improves the structural strength, but also provides space to facilitate auxiliary drainage.

[0023] Based on the above structure, each of the support blocks 4 has a flat surface at one of its far-away ends; the flat surface has an opening, and the outer side of the opening is fixed to the filter cloth structure. The opening facilitates the provision of a diversion channel and further reduces the risk of blockage.

[0024] In addition, the support block 4 is made of rubber, which can undergo slight deformation to buffer when subjected to impact or external force;

[0025] Combined with appendix Figure 2 , 3 Both the first skeleton layer 2 and the second skeleton layer 3 are provided with corresponding through grooves 5. The support block 4 and the through groove 5 are staggered, and the through groove 5 provides a flow channel.

[0026] Based on the above structure, filter cloth structures are provided on the mutually distant sides of the skeleton layer 2 and skeleton layer 3. Specifically, the filter cloth structure includes an inner geotextile layer 6 and an outer geotextile layer 7. The density of geotextile layer 6 is less than that of geotextile layer 7. Geotextile layer 6 and geotextile layer 7 are needle-punched from PET fibers. Specifically, the relatively dense outer geotextile layer 2 intercepts particles, preventing them from entering the mesh and causing accumulation and blockage, thus maintaining the long-term unobstructed flow of the internal drainage channels. The relatively sparse geotextile layer 1 strengthens the structure and prevents blockage by small particles that occasionally pass through geotextile layer 2. In summary, a gradient filtration is formed, making the permeability gradually change from the outside to the inside.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A multi-layer composite drainage mesh mat, comprising a mesh mat body (1); characterized in that: The mesh body (1) is a three-dimensional structure; the upper and lower sides of the mesh body (1) are respectively provided with skeleton layer one (2) and skeleton layer two (3), and the sides of skeleton layer one (2) and skeleton layer two (3) that are far apart from each other are provided with support blocks (4), and the skeleton layer one (2) and skeleton layer two (3) are respectively provided with corresponding through grooves (5). The skeleton layer 1 (2) and skeleton layer 2 (3) are provided with filter cloth structures on their mutually distant sides. The filter cloth structure includes an inner geotextile layer 1 (6) and an outer geotextile layer 2 (7). The density of the geotextile layer 1 (6) is less than that of the geotextile layer 2 (7).

2. The multi-layer composite drainage mesh mat according to claim 1, characterized in that: The mesh body (1) includes several curved and folded ribs, all of which are made of high-density polyethylene. The ribs intersect and fuse at the intersection to form a three-dimensional spatial network.

3. The multi-layer composite drainage mesh mat according to claim 1, characterized in that: The support blocks (4) are all hemispherical and hollow inside, and each of the ends that are far apart from each other has a flat surface.

4. The multi-layer composite drainage mesh mat according to claim 3, characterized in that: The support block (4) and the through groove (5) are staggered, and the support block (4) is made of rubber.

5. The multi-layer composite drainage mesh mat according to claim 4, characterized in that: The support blocks (4) have openings at their far ends, and the outer side of the openings is fixed to the filter cloth structure.

6. The multi-layer composite drainage mesh mat according to claim 1, characterized in that: The first geotextile layer (6) and the second geotextile layer (7) are needle-punched from PET fibers.

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