Novel geonet

By designing an irregular N-sided grid and setting nodal protrusions at the intersections, the stress concentration problem of existing geonets is solved, and the tensile and shear strengths are improved. It is suitable for slope protection projects and ensures structural stability and safety.

CN223991355UActive Publication Date: 2026-03-13SHANDONG DONGKAI ENG MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

When subjected to the thrust of rock blocks or ballast, existing geogrids are prone to stress concentration at the mesh and joints, leading to debonding and breakage, and insufficient strength.

Method used

It adopts an irregular N-sided grid structure, with plastic filaments interwoven to form a mesh, and protrusions are set at the intersections to increase the connection strength. The material is PP or PE, and the plastic filaments and protrusions are integrally formed.

Benefits of technology

It significantly improves the tensile and shear strength of geonets, reduces weight, enhances structural stability and service life, and is suitable for slope protection projects to prevent soil erosion and landslides.

✦ Generated by Eureka AI based on patent content.

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Abstract

A novel geonet is characterized in that a net body is formed by interweaving and connecting a plurality of plastic filaments to form a plurality of irregular N-polygon grids, and N is larger than or equal to 4; and nodal protrusions are arranged at the intersections of the plastic filaments, so that the connection strength of the intersections is improved. Through the design of the net body structure and the selection of materials, the strength of the geonet is greatly improved compared with the prior art, the bearing capacity of the geonet is greatly enhanced, the gram weight of a product is reduced, and the use amount of the materials is effectively reduced while the strength is guaranteed. The geonet is particularly suitable for slope protection engineering, soil erosion and landslide can be effectively prevented, and the stability and safety of a slope structure are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of slope protection technology, and more specifically, to a novel geonet. Background Technology

[0002] Geonets are mainly used in soft soil foundation treatment, roadbed reinforcement, slope protection, bridge abutment reinforcement, coastal slope protection, slope greening, and reservoir bottom reinforcement projects. Laying geonets on road slopes can prevent rockfalls, avoiding harm to people or vehicles; wrapping ballast with geonets can prevent ballast loss and roadbed deformation, improving roadbed stability; laying geonets can reinforce road surfaces and prevent the development of reflective cracks; as a reinforcing material in retaining wall fill, geonets can disperse soil stress, limit lateral displacement, and enhance stability; geonets can be used to make gabions for the protection of dams and rock surfaces, preventing erosion, landslides, and soil erosion.

[0003] Existing geogrids are generally two-dimensional meshes made of high molecular polymers such as polyethylene through thermoplastic or die extrusion. The mesh shape is generally regular. When subjected to the thrust of rock blocks or ballast, stress concentration easily occurs in the mesh and the joints between the meshes, causing debonding and leading to mesh breakage. This is a shortcoming of the existing technology. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art above, and then to propose a new type of geonet.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a new type of geonet, including a mesh body, wherein the mesh body is formed by multiple plastic filaments interwoven and connected to form several irregular N-sided grids, wherein N≥4; and protrusions are provided at the intersections of the plastic filaments to increase the connection strength at the intersections.

[0006] A further improvement of this utility model is that the plastic filament and the segment are integrally formed.

[0007] A further improvement of this utility model is that the mesh body forms several irregular quadrilateral grids.

[0008] A further improvement of this invention is that the material of the plastic filament is PP material.

[0009] A further improvement of this invention is that the material of the segment is PP material.

[0010] A further improvement of this invention is that the material of the plastic filament is PE material.

[0011] A further improvement of this invention is that the material of the segment is PE material.

[0012] The beneficial effects of this utility model are as follows: Through the design of the mesh structure and the selection of materials, this application significantly improves the strength of the geonet compared to existing technologies, greatly enhancing its resistance to external forces. Tensile and shear strengths are significantly increased, while the weight of the product is reduced; that is, while ensuring strength, the amount of material used is effectively reduced. This geonet is particularly suitable for slope protection projects, effectively preventing soil erosion and landslides, and ensuring the stability and safety of the slope structure. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0014] In the diagram, 1 represents the mesh body, 11 represents the plastic filaments, 12 represents the segment, and 13 represents the mesh. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0016] Example 1: As Figure 1 As shown, a novel geonet includes a mesh body 1, which is formed by interlacing multiple plastic filaments 11 to create several irregular N-sided grids 13, where N ≥ 4; N represents the minimum number of sides of the polygon, and N ≥ 4 means that these grids 13 have at least four sides, ensuring structural diversity and stability. Preferably, N is 5. Several irregular pentagonal grids are formed within the mesh body. Compared with existing technologies, the multiple N-sided grids 13 formed in this application can adapt to the external forces generated by rock blocks or ballast on the mesh body, and evenly distribute the external forces to each plastic filament 11, reducing stress concentration and minimizing mesh breakage.

[0017] At the intersections of the plastic filaments 11, protrusions 12 are provided. These protrusions 12 not only increase the contact area at the intersections, but also, through their unique shape design, effectively disperse the stress acting on the mesh, significantly improving the overall structural stability and service life. The protrusions 12 connect and reinforce each intersection of the plastic filaments 11, making the geonet less prone to damage when facing complex and changing soil environments and external forces.

[0018] Furthermore, the plastic filaments 11 and the joints 12 are integrally formed by punching holes in a mold at designed positions on a plastic plate, followed by heating and stretching from different directions. This design simplifies the production process, reduces assembly costs, ensures a seamless connection between the two, avoids the risk of structural failure due to weak connections, and further improves the overall performance of the geonet.

[0019] Furthermore, the mesh 1 forms several irregular quadrilateral grids 13. The quadrilateral grids 13 can more evenly distribute soil pressure, making them particularly suitable for engineering fields such as slope protection and roadbed reinforcement.

[0020] Furthermore, the plastic filaments 11 are made of PP material, and the nodule 12 is also made of PP material. PP (polypropylene) material is lightweight, high-strength, corrosion-resistant, and has good thermal stability, making it very suitable for geonets that are exposed to outdoor environments for extended periods.

[0021] In addition to the PP material mentioned above, the plastic filaments 11 and the protrusions 12 can also be made of PE (polyethylene) material, which has high flexibility and wear resistance.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A new type of geonet, characterized in that, The net body is formed by a plurality of plastic filaments which are interwoven to form a plurality of irregular N-sided polygonal meshes, wherein N is greater than or equal to 4; and a node protrusion is arranged at the intersection of the plastic filaments to increase the connection strength at the intersection.

2. The novel geonet according to claim 1, characterized by, The plastic filament and the node protrusion are integrally formed.

3. The novel geonet according to claim 1, characterized by, The net body forms a plurality of irregular quadrilateral meshes.

4. The novel geonet according to any one of claims 1 to 3, characterized in that, The material of the plastic filament is PP material.

5. The novel geonet according to claim 4, characterized by, The material of the node protrusion is PP material.

6. The novel geonet according to any one of claims 1 to 3, characterized in that, The material of the plastic filament is PE material.

7. The novel geonet according to claim 6, characterized by The material of the node protrusion is PE material.