Geotechnical composite drainage network structure

Abstract

The utility model discloses a geotechnical composite drainage net structure which comprises a porous drainage net, a reinforcing layer and a permeable layer. The reinforcing layers are connected to the two sides of the porous drainage net, and the two permeable layers are connected with the reinforcing layers on the two sides respectively. The reinforcing layer comprises a connecting outer frame and a supporting plate, and the supporting plate is arranged in the connecting outer frame; flow guide grooves are formed in the two sides of the supporting plate, and a plurality of flow guide holes are formed in the flow guide grooves; a limiting cylinder is arranged in the flow guide groove, located on the top of the flow guide hole and fixedly connected with the supporting plate. A limiting ring is arranged at the top of the limiting barrel, a flow guide opening is formed in the bottom of the limiting barrel, a floating ball is arranged in the limiting barrel, and the outer diameter of the floating ball is larger than the diameter of the flow guide hole. The limiting cylinder and the floating ball are used for achieving the water flow control and blocking functions, and therefore capillary water is prevented from permeating into a dry foundation. When the drainage net structure is used, water is drained away through the porous drainage net, and meanwhile the dry state of the earth surface is kept.

Description

Technical Field

[0001] This utility model belongs to the field of drainage net technology, specifically a geosynthetic drainage net structure. Background Technology

[0002] Geogrids are drainage systems used in earthwork engineering. They are typically made of polypropylene or other similar materials, possessing high strength and corrosion resistance. The main function of geogrids is to promote rapid drainage of water from the soil through their mesh structure, reducing soil seepage pressure and preventing water accumulation and liquid buildup, thereby maintaining soil stability and drainage performance. Geogrids are widely used in roads, dams, fill projects, and water conservancy projects.

[0003] Traditional geogrids serve a drainage function in earthwork engineering, but they have a technical problem: they cannot prevent water from the underground soil from seeping through the mesh to the dry surface. Current drainage net structures typically promote the removal of water from the soil through their mesh structure, but their effectiveness in blocking underground water layers is limited. This allows underground water to still seep through the mesh to the surface, causing dry areas on the surface to become damp due to water erosion.

[0004] A novel composite geogrid drainage net is disclosed in patent publication number CN216108425U. This device separates the upper and lower cover layers and the porous drainage net by setting upper and lower reinforcing layers, which can effectively prevent the cover layer from getting stuck in the small holes when the external pressure is too great, thus ensuring the smooth drainage of the device. This type of composite geogrid drainage net has the advantages of high structural strength and resistance to clogging. However, the small holes on its upper and lower reinforcing layers can easily allow water in the underground soil to seep to the surface, causing water erosion in dry areas on the surface. Utility Model Content

[0005] The purpose of this utility model is to provide a geosynthetic drainage net structure to solve the following technical problems mentioned in the background art:

[0006] Current drainage network structures typically promote the removal of water from the soil through their mesh structure, but they have limited effectiveness in blocking underground water layers. This allows underground water to still seep through the drainage network to the surface, causing water erosion in dry areas on the surface.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A geosynthetic drainage net structure includes a porous drainage net, a reinforcing layer, and a permeable layer; the reinforcing layer is connected to both sides of the porous drainage net, and two permeable layers are respectively connected to the reinforcing layers on both sides.

[0009] The reinforcing layer includes a connecting outer frame and a support plate, with the support plate located inside the connecting outer frame; the support plate has flow guide grooves on both sides, and several flow guide holes are provided in the flow guide grooves;

[0010] A limiting cylinder is installed inside the flow guide channel. The limiting cylinder is located at the top of the flow guide hole and is fixedly connected to the support plate. A limiting ring is installed at the top of the limiting cylinder, and a flow guide port is installed at the bottom of the limiting cylinder. A float ball is installed inside the limiting cylinder, and the outer diameter of the float ball is larger than the diameter of the flow guide hole.

[0011] Furthermore, the permeable layer is made of non-woven geotextile.

[0012] Furthermore, a barbed hook is fixed to one side of the outer frame, and the barbed hook penetrates the permeable layer.

[0013] Furthermore, the permeation layer is connected to the connecting frame using an adhesive.

[0014] Furthermore, the outer frame is sealed to the support plate, and the support plate is sealed to the adjacent support plate.

[0015] Furthermore, the bottom sides of the support plate are inclined.

[0016] Furthermore, guide grooves are provided on both the left and right sides of the top of the support plate.

[0017] Furthermore, several drainage holes are provided on both the upper and lower sides of the porous drainage net, and the guide holes on the support plate correspond to the positions of the drainage holes.

[0018] Furthermore, a limiting rod is fixed to the limiting cylinder on one side of the bottom support plate of the porous drainage net, and the limiting rod is located at the bottom of the limiting ring.

[0019] Furthermore, the limiting cylinder has a two-lobed structure, with both lobes fixed to the support plate, forming a flow guide between the two lobes; the float is positioned between the two lobes of the limiting cylinder.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The reinforcing layer of this invention includes a connecting outer frame and a support plate, with guide channels and guide holes on both sides of the support plate. Water flow control and isolation are achieved using a limiting cylinder and a float, thus preventing water in the foundation from seeping into the dry ground and achieving moisture protection for the foundation. During use, this drainage net structure drains water through a porous drainage net while maintaining a dry surface, improving the stability and drainage effect of earthwork projects. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0023] Figure 2 for Figure 1 Enlarged schematic diagram of part A;

[0024] Figure 3 This is an exploded view of the present invention;

[0025] Figure 4 for Figure 3 Enlarged schematic diagram of part B;

[0026] Figure 5 This is a schematic diagram of the structure of the barbed hook of this application.

[0027] The markings in the diagram are: 1-permeable layer, 2-reinforcing layer, 3-connecting outer frame, 4-drainage hole, 5-porous drainage net, 6-support plate, 7-guide hole, 8-guide groove, 9-float ball, 10-limiting cylinder, 11-limiting ring, 12-limiting rod, 13-barb hook, 14-guide port. Detailed Implementation

[0028] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example

[0030] A geosynthetic drainage net structure, such as Figure 1 As shown, it includes a porous drainage net 5, a reinforcing layer 2, and a permeable layer 1; the reinforcing layer 2 is connected to both sides of the porous drainage net 5, and the two permeable layers 1 are respectively connected to the reinforcing layers 2 on both sides; the permeable layers 1 are used to filter water and prevent large particles from entering the porous drainage net 5 and causing blockage.

[0031] The reinforcing layer 2 includes a connecting outer frame 3 and a support plate 6, with the support plate 6 located inside the connecting outer frame 3; the support plate 6 has flow guide grooves 8 on both sides, and a plurality of flow guide holes 7 are provided in the flow guide grooves 8.

[0032] A limiting cylinder 10 is installed inside the flow guide channel 8. The limiting cylinder 10 is located at the top of the flow guide hole 7 and is fixedly connected to the support plate 6. A limiting ring 11 is installed at the top of the limiting cylinder 10, such as... Figure 4 As shown, a flow guide port 14 is provided at the bottom of the limiting cylinder 10, and a float ball 9 is provided inside the limiting cylinder 10. The outer diameter of the float ball 9 is larger than the diameter of the flow guide hole 7. The float ball 9 is used to block the flow guide hole 7 to prevent capillary water penetration.

[0033] Specifically, in use, the geosynthetic drainage net structure of this invention is buried between the foundation and the subgrade. Simultaneously, the porous drainage net 5 in the middle needs to be connected to the drainage ditches on both sides of the road. The drainage net structure serves to isolate the foundation and the subgrade. When drainage is needed, water flows through the permeable layer 1 into the guide channel 8 on the support plate 6. The water flow lifts the float 9, opening the guide hole 7. The water flows through the guide port 14 into the limiting cylinder 10, and then flows through the guide hole 7 into the porous drainage net 5, where it is drained away. After the water is drained, the float 9 falls, closing the guide hole 7. With the guide hole 7 closed, capillary flow can no longer lift the float 9, effectively preventing capillary water in the subgrade from seeping into the dry foundation through the drainage net. This effectively prevents the dry foundation from being eroded by moisture. It should be noted that the foundation is close to the ground surface; therefore, after drainage is completed, the foundation can remain dry through natural air drying. Even immediately after drainage, only a small amount of water will seep into the drainage channel 8 from the foundation. This water will evaporate and dry out. However, the base will store more water. Therefore, after drainage, a significant amount of water will seep out from the base. At this point, the float 9 can prevent this water from evaporating or seeping into the foundation by blocking the drainage hole 7, thus keeping the foundation dry and achieving moisture protection.

[0034] In a preferred embodiment, the permeable layer 1 is made of non-woven geotextile. Non-woven geotextile has advantages such as good permeability, high tensile strength, and corrosion resistance. As the material of the permeable layer 1, the main function of this non-woven geotextile is to filter water and prevent large particles from entering the porous drainage net 5 and causing blockage. Through the application of non-woven geotextile, it plays a crucial filtering role in the geosynthetic drainage net structure, ensuring the normal operation and stability of the earthwork project.

[0035] In a preferred embodiment, such as Figure 3 As shown, a barbed hook 13 is fixed to one side of the connecting outer frame 3, and the barbed hook 13 penetrates the permeable layer 1. The function of the barbed hook 13 is to enhance the bonding strength between the connecting outer frame 3 and the permeable layer 1, ensuring the stability and sealing of the geotextile drainage net structure. By penetrating the permeable layer 1, the barbed hook 13 tightly fixes the connecting outer frame 3 between the foundation and the subgrade, preventing the geotextile drainage net from loosening or falling off during use. Through the design and application of the barbed hook 13, the overall durability of the geotextile drainage net can be effectively enhanced, improving its reliability and longevity.

[0036] In a preferred embodiment, the permeable layer 1 and the connecting frame 3 are connected by an adhesive. The adhesive forms a uniform and firm bonding layer on the contact surface where the permeable layer 1 and the connecting frame 3 meet, thereby increasing the bonding strength and sealing performance between them. The application of the adhesive effectively prevents gaps or loosening between the permeable layer 1 and the connecting frame 3, preventing separation or slippage during use. This connection method improves the overall structural stability and durability of the geotextile drainage net.

[0037] In a preferred embodiment, the outer frame 3 is sealed to the support plate 6, and the support plate 6 is sealed to adjacent support plates 6. This sealed connection design effectively prevents moisture and particles from seeping or leaking through the connection, maintaining the airtightness and stability of the geotextile drainage net structure. The sealed connection between the outer frame and the support plate 6 prevents water from entering the drainage net from the outside, maintaining the normal operation of the drainage system. Simultaneously, the sealed connection between the support plate 6 and adjacent support plates 6 ensures the continuity and integrity of the entire drainage net system, preventing leakage at the connection points from affecting the drainage effect or structural stability.

[0038] In a preferred embodiment, such as Figure 1 As shown, the bottom sides of the support plate 6 are inclined. This design creates a space between the support plate 6 and the porous drainage net 5, facilitating drainage. This space allows water in the drainage system to flow quickly to the porous drainage net 5, effectively removing surface or groundwater and maintaining the dryness and stability of the earthwork. Furthermore, the inclined bottom sides of the support plate 6 also promote smooth water flow in the drainage system, improving drainage efficiency. This design effectively prevents water from stagnating or accumulating between the support plate 6 and the porous drainage net 5, avoiding drainage problems or blockages, and ensuring the normal operation and drainage function of the geotextile drainage net structure.

[0039] In a preferred embodiment, such as Figure 1 or Figure 3 As shown, guide channels 8 are provided on both the left and right sides of the top of the support plate 6. By providing guide channels 8 on both sides of the top of the support plate 6, the water flow can be evenly distributed, improving the drainage efficiency and capacity of the entire geotextile drainage network structure. This design effectively prevents water from stagnating or accumulating in the drainage system, reducing the risk of blockage and maintaining the smooth and stable operation of the drainage system.

[0040] In a preferred embodiment, such as Figure 1As shown, the porous drainage net 5 has several drainage holes 4 on both its upper and lower sides, and the guide holes 7 on the support plate 6 correspond to the positions of the drainage holes 4. This design ensures that water in the drainage system can flow quickly and evenly through the drainage holes 4 to the guide holes 7 on the support plate 6, achieving effective drainage. The corresponding positions of the guide holes 7 on the support plate 6 and the drainage holes 4 effectively guide the water flow, preventing water deviation or siltation, and maintaining the smooth flow and stability of the system. This design not only improves the performance and efficiency of the drainage system but also reduces maintenance costs and mitigates the risk of blockage during system operation, ensuring the long-term stable and reliable operation of the geotextile drainage net structure.

[0041] In a preferred embodiment, such as Figure 2 As shown, a limiting cylinder 10 on the support plate 6 at the bottom of the porous drainage net 5 is fixedly connected to a limiting rod 12, which is located at the bottom of the limiting ring 11. The limiting rod 12 is used to limit the float 9. The support plate 6 at the bottom allows water in the foundation to enter the drainage net and be discharged. When too much water seeps out of the foundation, the float 9 will rise and block the drainage holes 4 on the drainage net, preventing effective drainage. Therefore, the limiting rod 12 is needed to limit the upward distance of the float 9.

[0042] In a preferred embodiment, such as Figure 4 As shown, the limiting cylinder 10 has a two-lobed structure, with both lobes fixedly connected to the support plate 6, forming a flow guide 14 between the two lobes. The float 9 is positioned between the two lobes. The flow guide 14 formed between the two lobes guides the water flow smoothly, assisting in rapid drainage and flow, and improving drainage efficiency. This design ensures stable and reliable operation of the drainage system.

[0043] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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 this utility model.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A geocomposite drainage net structure, characterized by: It includes a porous drainage net (5), a reinforcing layer (2) and a permeable layer (1); the reinforcing layer (2) is connected to both sides of the porous drainage net (5), and the two permeable layers (1) are respectively connected to the reinforcing layers (2) on both sides; The reinforcing layer (2) includes a connecting outer frame (3) and a support plate (6), the support plate (6) is set inside the connecting outer frame (3); the support plate (6) has flow guide grooves (8) on both sides, and a number of flow guide holes (7) are set inside the flow guide grooves (8); A limiting cylinder (10) is provided inside the flow channel (8). The limiting cylinder (10) is located at the top of the flow hole (7) and is fixedly connected to the support plate (6). A limiting ring (11) is provided at the top of the limiting cylinder (10). A flow port (14) is provided at the bottom of the limiting cylinder (10). A float (9) is provided inside the limiting cylinder (10). The outer diameter of the float (9) is larger than the diameter of the flow hole (7).

2. A geocomposite drainage net structure according to claim 1, characterized in that: The permeable layer (1) is made of non-woven geotextile.

3. The geocomposite drainage net structure according to claim 1, characterized in that: A barbed hook (13) is fixed to one side of the outer frame (3), and the barbed hook (13) penetrates the permeable layer (1).

4. The geocomposite drainage net structure according to claim 1, characterized in that: The permeable layer (1) is connected to the connecting frame (3) by an adhesive.

5. The geocomposite drainage net structure according to claim 1, characterized in that: The outer frame (3) is sealed to the support plate (6), and the support plate (6) is sealed to the adjacent support plate (6).

6. A geocomposite drainage net structure according to claim 1, characterized in that: The bottom sides of the support plate (6) are inclined.

7. The geocomposite drainage net structure according to claim 1, characterized in that: The support plate (6) has guide grooves (8) on both the left and right sides of the top.

8. The geocomposite drainage net structure according to claim 1, characterized in that: The porous drainage net (5) has several drainage holes (4) on both the upper and lower sides, and the guide holes (7) on the support plate (6) correspond to the drainage holes (4).

9. The geocomposite drainage net structure according to claim 1, characterized in that: A limiting cylinder (10) is fixed to a limiting rod (12) on a support plate (6) on one side of the bottom of the porous drainage net (5). The limiting rod (12) is located at the bottom of the limiting ring (11).

10. The geocomposite drainage net structure according to claim 1, characterized in that: The limiting cylinder (10) has a two-lobed structure. Both limiting cylinders (10) are fixed to the support plate (6), and a guide port (14) is formed between the two limiting cylinders (10). The float (9) is set between the two limiting cylinders (10).

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