A multifunctional three-dimensional warp-knitted geogrid for geotechnical construction

Abstract

This invention discloses a multifunctional three-dimensional warp-knitted geogrid for geotechnical construction, comprising transverse strips, longitudinal strips, and pressure rings. The longitudinal strips are installed inside the transverse strips, and the pressure rings are located at the top of the transverse strips. Limiting strips are fixedly installed inside the transverse strips. Reinforcing crosses are fixedly installed at the top and bottom of the transverse strips, and limiting insertion holes A are formed inside the transverse strips. By inserting a plug into the limiting insertion holes A and B, the position of the combined transverse and longitudinal strips is fixed, and the intersection of the transverse and longitudinal strips is reinforced. Furthermore, when the pressure ring is pressed downwards, the bottom end of the plug can be inserted into the ground surface, thereby improving the stability of the three-dimensional warp-knitted geogrid. Additionally, water seeping into the surface of the transverse and longitudinal strips through the ground can seep downwards through the permeable cotton inside the pressure rings and plugs, improving water permeability and preventing water from remaining in the space where the three-dimensional warp-knitted geogrid is laid, thus ensuring the quality of the civil engineering project.

Description

Technical Field

[0001] This invention belongs to the field of geotechnical construction technology, and specifically relates to a multifunctional three-dimensional warp-knitted grid for geotechnical construction. Background Technology

[0002] Three-dimensional warp-knitted geogrid is made of high-strength fibers or polyester industrial filaments, which are warp-knitted into a directional mesh fabric and then coated with PVC to form a geogrid. It is known as "fiber soft steel reinforcement". Warp-knitted geogrid, also known as polyester geogrid or warp-knitted polyester geogrid, is one of the commonly used geosynthetic materials in civil engineering. Geogrids are mainly used in the construction of roadbeds, embankments and other projects to bear the settlement load of soil and strengthen the bearing capacity of the foundation.

[0003] When used for reinforcement, existing warp-knitted grids have large pores. When landslides occur, mud and stones can pass through the pores, resulting in low soil retention and protection performance and poor practicality. Furthermore, the existing warp-knitted grids use adhesive bonding between the horizontal and vertical strips after weaving, which requires a large amount of glue, increasing production costs. In addition, the existing warp-knitted grids have poor waterproofing and seepage prevention, causing seepage water to easily remain in the space where the three-dimensional warp-knitted grid is laid, thus deteriorating the quality of the civil engineering project. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a multifunctional three-dimensional warp-knitted geogrid for geotechnical construction. This invention solves the problem that existing warp-knitted geogrids have poor waterproofing and seepage prevention functions, which leads to water seepage easily remaining in the space where the three-dimensional warp-knitted geogrid is laid, thus deteriorating the quality of civil engineering projects.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional three-dimensional warp-knitted geogrid for geotechnical construction, comprising transverse strips, longitudinal strips, and pressure rings. The longitudinal strips are installed inside the transverse strips, and the pressure rings are located at the top of the transverse strips. Limiting strips are fixedly installed inside the transverse strips. Grid-reinforced crosses are fixedly installed at the top and bottom of the transverse strips. Limiting insertion holes A are opened inside the transverse strips, and limiting insertion holes B are opened inside the longitudinal strips. Connecting strips are fixedly installed on opposite sides of the pressure rings. A tube is connected to the bottom of the pressure rings. Infiltration cotton is installed inside both the pressure rings and the tubes, and oblique infiltration holes are opened on the outer side of the tubes.

[0006] Preferably, the horizontal strips, vertical strips, and grid-reinforced crosses all include a polyester layer, the outer side of the polyester layer is provided with an anti-corrosion coating, and the side of the anti-corrosion coating away from the polyester layer is provided with a waterproof coating.

[0007] The advantages of the above technical solution are that the polyester layer uses high-strength polyester industrial filaments, which are then coated with PVC, giving the horizontal strips, vertical strips, and mesh reinforcement crosses strong toughness. Furthermore, an anti-corrosion coating is applied to the outside of the polyester layer. This anti-corrosion coating uses a corrosion-resistant paint, which improves the corrosion resistance of the polyester layer buried underground, preventing the horizontal strips, vertical strips, and mesh reinforcement crosses from corroding and breaking after long-term underground use, thus extending the service life of the three-dimensional warp-knitted grid. Additionally, a waterproof coating is applied to the outside of the anti-corrosion coating. This waterproof coating uses a waterproof paint, which improves the waterproof performance of the polyester layer, preventing the horizontal strips, vertical strips, and mesh reinforcement crosses from being soaked in water underground for extended periods, thus preventing material damage.

[0008] Preferably, there are multiple horizontal strips and multiple vertical strips, and the multiple vertical strips and multiple horizontal strips are arranged in a cross shape.

[0009] The advantages of the above technical solution are that multiple transverse and longitudinal strips are arranged in a cross shape to form a complete three-dimensional warp-knitted grid, which can be applied to the reinforcement of soft soil foundation treatment and roadbed, embankment and other projects to improve the quality of the project and reduce the cost of the project. It has high tensile strength, high tear resistance and strong bonding force with soil and gravel.

[0010] Preferably, the limiting strips are arranged in groups of two, and the distance between the two limiting strips in each group is adapted to the width of the longitudinal strip.

[0011] The advantage of the above technical solution is that when multiple horizontal strips and multiple vertical strips are arranged in a cross shape to form a complete three-dimensional warp-knitted grid, multiple vertical strips can be inserted into multiple sets of limiting strips inside the horizontal strips, thereby limiting the position of the vertical strips inside the horizontal strips, ensuring that the grid size formed when the horizontal and vertical strips are arranged in a cross shape is constant, and ensuring the use effect of the three-dimensional warp-knitted grid.

[0012] Preferably, the dimensions of the limiting socket A are the same as those of the limiting socket B, and the positions of the limiting socket A and the limiting socket B correspond to each other.

[0013] The advantage of the above technical solution is that when multiple horizontal strips and multiple vertical strips are arranged in a cross shape to form a complete three-dimensional warp-knitted grid, the limiting insertion hole A opened on the surface of the horizontal strip can correspond to the limiting insertion hole B opened inside the vertical strip, thereby determining the position of the horizontal strip outside the vertical strip, ensuring that the grid size formed when the horizontal strips and vertical strips are arranged in a cross shape is constant, and ensuring the use effect of the three-dimensional warp-knitted grid.

[0014] Preferably, connecting posts are fixedly installed on opposite sides of the mesh-reinforced cross.

[0015] The advantages of the above technical solution are that the set grid reinforcement cross can enhance the tensile strength and tear resistance of the gaps in the three-dimensional warp-knitted grid, thereby improving the performance of the three-dimensional warp-knitted grid. In addition, the set connecting posts can connect the top and bottom grid reinforcement crosses of the transverse strips together, thereby improving the tensile strength and tear resistance of the grid reinforcement cross.

[0016] Preferably, the outer diameter of the insert is the same as the inner diameter of the limiting socket A and the limiting socket B, the insert is inserted into the inside of the limiting socket A and the limiting socket B, and the outer diameter of the pressure ring is larger than the inner diameter of the limiting socket A and the limiting socket B.

[0017] The advantages of the above technical solution are that during assembly, the insert can be inserted into the limiting holes A and B to fix the position of the combined transverse and longitudinal strips and reinforce the intersection of the transverse and longitudinal strips. In addition, when the pressure ring is pressed down, the bottom end of the insert can be inserted into the ground surface, thereby improving the laying stability of the three-dimensional warp-knitted grid. Furthermore, water that seeps into the surface of the transverse and longitudinal strips through the ground can seep downward through the seepage cotton inside the pressure ring and insert, improving the water seepage effect and preventing the seeping water from remaining in the space where the three-dimensional warp-knitted grid is laid, thus ensuring the quality of the civil engineering project.

[0018] Preferably, a steel wire strip is fixedly installed inside the polyester layer.

[0019] The advantage of the above technical solution is that the steel wire strips can improve the tensile strength and tear resistance of the polyester layer. Even after the high-strength polyester industrial filaments break, the steel wire strips can keep the transverse strips, longitudinal strips and grid reinforcement cross-shaped structure from breaking, thus ensuring the performance of the three-dimensional warp-knitted grid.

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

[0021] 1. During assembly, the insert can be inserted into the limiting holes A and B to fix the position of the combined transverse and longitudinal strips. The fixing method is simple, does not require glue, reduces production costs, and reinforces the intersection of the transverse and longitudinal strips. In addition, when the pressure ring is pressed down, the bottom end of the insert can be inserted into the ground surface, thereby improving the stability of the three-dimensional warp-knitted grid. Furthermore, water that seeps into the surface of the transverse and longitudinal strips through the ground can seep downward through the seepage cotton inside the pressure ring and insert, improving the water seepage effect and preventing the seeping water from remaining in the space where the three-dimensional warp-knitted grid is laid, thus ensuring the quality of the civil engineering project.

[0022] 2. The polyester layer is made of high-strength polyester industrial filament, coated with PVC, which gives the horizontal strips, vertical strips, and mesh reinforcement crosses strong toughness. An anti-corrosion coating is applied to the outside of the polyester layer. This anti-corrosion coating uses a corrosion-resistant paint, which improves the corrosion resistance of the polyester layer buried underground, preventing the horizontal strips, vertical strips, and mesh reinforcement crosses from corroding and breaking after long-term underground use, thus extending the service life of the three-dimensional warp-knitted grid. In addition, a waterproof coating is applied to the outside of the anti-corrosion coating. This waterproof coating improves the waterproof performance of the polyester layer, preventing the horizontal strips, vertical strips, and mesh reinforcement crosses from being damaged by water immersion underground for extended periods. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 3 This is a bottom-view three-dimensional structural diagram of the present invention;

[0026] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point B;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the transverse strip of the present invention;

[0028] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point C;

[0029] Figure 7 This is a schematic diagram of the longitudinal strip three-dimensional structure of the present invention;

[0030] Figure 8 This is a partially enlarged structural schematic diagram of the present invention;

[0031] Figure 9 This is a partial cross-sectional view of the present invention;

[0032] Figure 10 This is a schematic diagram of the horizontal and vertical strip hierarchical structure of the present invention.

[0033] In the diagram: 1. Horizontal strip; 2. Vertical strip; 3. Grid reinforcement cross; 4. Pressure ring; 5. Connecting strip; 6. Infiltration cotton; 7. Angled seepage hole; 8. Insert tube; 9. Waterproof coating; 10. Polyester layer; 11. Anti-corrosion coating; 12. Steel wire strip; 13. Limiting insertion hole A; 14. Limiting strip; 15. Limiting insertion hole B; 16. Connecting post. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention 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 invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figures 1-10 As shown, a multifunctional three-dimensional warp-knitted geogrid for geotechnical construction includes transverse strips 1, longitudinal strips 2, and pressure rings 4. The longitudinal strips 2 are installed inside the transverse strips 1, and the pressure rings 4 are located at the top of the transverse strips 1. Limiting strips 14 are fixedly installed inside the transverse strips 1. Grid reinforcement crosses 3 are fixedly installed at the top and bottom of the transverse strips 1. Limiting insertion holes A13 are opened inside the transverse strips 1, and limiting insertion holes B15 are opened inside the longitudinal strips 2. Connecting strips 5 are fixedly installed on the opposite side of the pressure rings 4. Inserts 8 are connected to the bottom of the pressure rings 4. Infiltration cotton 6 is installed inside both the pressure rings 4 and the inserts 8. Inclined infiltration holes 7 are opened on the outer side of the inserts 8.

[0036] The working principle of the above technical solution is as follows:

[0037] Multiple transverse strips 1 and multiple longitudinal strips 2 are arranged in a cross shape to form a complete three-dimensional warp-knitted grid. This grid can be applied to soft soil foundation treatment and reinforcement of roadbeds, embankments, and other engineering projects to improve project quality and reduce costs. It has high tensile strength, high tear resistance, and strong bonding with soil and gravel. When arranging multiple transverse strips 1 and multiple longitudinal strips 2 in a cross shape to form a complete three-dimensional warp-knitted grid, multiple longitudinal strips 2 can be inserted between multiple sets of limiting strips 14 inside the transverse strips 1, thereby limiting the position of the longitudinal strips 2 inside the transverse strips 1. This ensures that the grid size formed when the transverse strips 1 and longitudinal strips 2 are arranged in a cross shape, guaranteeing the effectiveness of the three-dimensional warp-knitted grid. When arranging multiple transverse strips 1 and multiple longitudinal strips 2 in a cross shape to form a complete three-dimensional warp-knitted grid, the limiting insertion holes A13 opened on the surface of the transverse strips 1 and the inner... The limiting insertion hole B15 is corresponding to the horizontal strip 1 outside the vertical strip 2, thus determining the position of the horizontal strip 1 outside the vertical strip 2. This ensures that the grid size formed when the horizontal strip 1 and the vertical strip 2 are arranged in a cross shape is constant, ensuring the effectiveness of the three-dimensional warp-knitted grid. During assembly, the insertion cylinder 8 can be inserted into the limiting insertion holes A13 and B15 to fix the position of the combined horizontal strip 1 and vertical strip 2 and reinforce the intersection of the horizontal strip 1 and vertical strip 2. In addition, when the pressure ring 4 is pressed down, the bottom end of the insertion cylinder 8 can be inserted into the ground surface, thereby improving the stability of the three-dimensional warp-knitted grid. Furthermore, water that seeps into the surface of the horizontal strip 1 and vertical strip 2 through the ground can seep downward through the seepage cotton 6 inside the pressure ring 4 and the insertion cylinder 8, improving the water seepage effect and preventing the seepage water from remaining in the space where the three-dimensional warp-knitted grid is laid, thus ensuring the quality of the civil engineering project.

[0038] In another implementation scheme, such as Figure 10 As shown, the horizontal strip 1, the vertical strip 2, and the grid reinforcement cross 3 all include a polyester layer 10. An anti-corrosion coating 11 is provided on the outer side of the polyester layer 10. A waterproof coating 9 is provided on the side of the anti-corrosion coating 11 away from the polyester layer 10. A steel wire strip 12 is fixedly installed inside the polyester layer 10.

[0039] The polyester layer 10 is made of high-strength polyester industrial filament, then coated with PVC, giving the transverse strips 1, longitudinal strips 2, and mesh reinforcement crosses 3 strong toughness. Furthermore, an anti-corrosion coating 11 is applied to the outer side of the polyester layer 10. This anti-corrosion coating 11 uses a corrosion-resistant paint, which improves the corrosion resistance of the polyester layer 10 buried underground, preventing the transverse strips 1, longitudinal strips 2, and mesh reinforcement crosses 3 from corroding and breaking after long-term underground use, thus extending the service life of the three-dimensional warp-knitted grid. Additionally, the anti-corrosion coating 11... The outer side is also coated with a waterproof coating 9, which is a waterproof coating material that can improve the waterproof performance of the polyester layer 10 and prevent the transverse strips 1, longitudinal strips 2 and grid reinforcement cross 3 from being soaked in water underground for a long time, thus preventing material damage. The steel wire strips 12 can improve the tensile strength and tear resistance of the polyester layer 10, so that even if the high-strength polyester industrial filament breaks, the steel wire strips 12 can keep the transverse strips 1, longitudinal strips 2 and grid reinforcement cross 3 intact, ensuring the performance of the three-dimensional warp-knitted grid.

[0040] In another implementation scheme, such as Figure 10 As shown, there are multiple horizontal strips 1 and multiple vertical strips 2, and the multiple vertical strips 2 and multiple horizontal strips 1 are arranged in a cross shape. The limiting strips 14 are in groups of two, and the distance between the two limiting strips 14 in each group is adapted to the width of the vertical strip 2. The specifications of the limiting insertion hole A13 are the same as those of the limiting insertion hole B15, and the positions of the limiting insertion hole A13 and the limiting insertion hole B15 correspond to each other. The specifications of the outer diameter of the insertion cylinder 8 are the same as those of the inner diameter of the limiting insertion hole A13 and the limiting insertion hole B15. The insertion cylinder 8 is inserted into the inside of the limiting insertion hole A13 and the limiting insertion hole B15. The specifications of the outer diameter of the pressure ring 4 are larger than those of the inner diameter of the limiting insertion hole A13 and the limiting insertion hole B15.

[0041] Multiple transverse strips 1 and multiple longitudinal strips 2 are arranged in a cross shape to form a complete three-dimensional warp-knitted grid. This grid can be applied to soft soil foundation treatment and reinforcement of roadbeds, embankments, and other engineering projects to improve project quality and reduce costs. It has high tensile strength, high tear resistance, and strong bonding with soil and gravel. When arranging multiple transverse strips 1 and multiple longitudinal strips 2 in a cross shape to form a complete three-dimensional warp-knitted grid, multiple longitudinal strips 2 can be inserted between multiple sets of limiting strips 14 inside the transverse strips 1, thereby limiting the position of the longitudinal strips 2 inside the transverse strips 1. This ensures that the grid size formed when the transverse strips 1 and longitudinal strips 2 are arranged in a cross shape, guaranteeing the effectiveness of the three-dimensional warp-knitted grid. When arranging multiple transverse strips 1 and multiple longitudinal strips 2 in a cross shape to form a complete three-dimensional warp-knitted grid, the limiting insertion holes A13 opened on the surface of the transverse strips 1 and the inner... The limiting insertion hole B15 is corresponding to the horizontal strip 1 outside the vertical strip 2, thus determining the position of the horizontal strip 1 outside the vertical strip 2. This ensures that the grid size formed when the horizontal strip 1 and the vertical strip 2 are arranged in a cross shape is constant, ensuring the effectiveness of the three-dimensional warp-knitted grid. During assembly, the insertion cylinder 8 can be inserted into the limiting insertion holes A13 and B15 to fix the position of the combined horizontal strip 1 and vertical strip 2 and reinforce the intersection of the horizontal strip 1 and vertical strip 2. In addition, when the pressure ring 4 is pressed down, the bottom end of the insertion cylinder 8 can be inserted into the ground surface, thereby improving the stability of the three-dimensional warp-knitted grid. Furthermore, water that seeps into the surface of the horizontal strip 1 and vertical strip 2 through the ground can seep downward through the seepage cotton 6 inside the pressure ring 4 and the insertion cylinder 8, improving the water seepage effect and preventing the seepage water from remaining in the space where the three-dimensional warp-knitted grid is laid, thus ensuring the quality of the civil engineering project.

[0042] In another implementation scheme, such as Figure 10 As shown, connecting posts 16 are fixedly installed on the opposite sides of the mesh-reinforced cross 3.

[0043] The set grid reinforcement cross 3 can enhance the tensile strength and tear resistance of the gaps in the three-dimensional warp-knitted grid, thereby improving the performance of the three-dimensional warp-knitted grid. In addition, the set connecting column 16 can connect the top and bottom grid reinforcement cross 3 of the transverse strip 1 together, thereby improving the tensile strength and tear resistance of the grid reinforcement cross 3. Furthermore, the grid reinforcement cross 3 can reduce the porosity of the warp-knitted grid, so that when a landslide occurs, mud and stones will not pass through the porosity of the grid, thus improving the performance of soil retention and protection.

[0044] The working principle and usage of this invention: Multiple transverse strips 1 and multiple longitudinal strips 2 are arranged in a cross shape to form a complete three-dimensional warp-knitted grid. This can be applied to soft soil foundation treatment and reinforcement of roadbeds, embankments, and other engineering projects to improve project quality and reduce costs. It has high tensile strength, high tear resistance, and strong bonding with soil and gravel. When multiple transverse strips 1 and multiple longitudinal strips 2 are arranged in a cross shape to form a complete three-dimensional warp-knitted grid, multiple longitudinal strips 2 can be inserted between multiple sets of limiting strips 14 inside the transverse strips 1, thereby limiting the position of the longitudinal strips 2 inside the transverse strips 1. This ensures that the grid size formed when the transverse strips 1 and longitudinal strips 2 are arranged in a cross shape is constant, ensuring the effectiveness of the three-dimensional warp-knitted grid. When multiple transverse strips 1... When multiple longitudinal strips 2 are arranged in a cross shape to form a complete three-dimensional warp-knitted grid, the limiting insertion holes A13 on the surface of the transverse strip 1 can be aligned with the limiting insertion holes B15 inside the longitudinal strip 2 to determine the position of the transverse strip 1 on the outside of the longitudinal strip 2. This ensures that the grid size formed when the transverse strips 1 and longitudinal strips 2 are arranged in a cross shape is constant, guaranteeing the performance of the three-dimensional warp-knitted grid. During assembly, the insert cylinder 8 can be inserted into the limiting insertion holes A13 and B15 to fix the position of the combined transverse strips 1 and longitudinal strips 2 and reinforce the intersection of the transverse strips 1 and longitudinal strips 2. In addition, when the pressure ring 4 is pressed down, the bottom end of the insert cylinder 8 can be inserted into the ground surface, thereby improving the performance of the three-dimensional warp-knitted grid. To ensure the stability of the installation, water seeping into the surfaces of the transverse strips 1 and longitudinal strips 2 through the ground can permeate downwards through the permeation cotton 6 inside the pressure ring 4 and the insert 8, improving the water permeability and preventing water from remaining in the space where the three-dimensional warp-knitted grid is laid, thus ensuring the quality of the civil engineering project. Furthermore, the polyester layer 10 is made of high-strength polyester industrial filaments coated with PVC, giving the transverse strips 1, longitudinal strips 2, and grid reinforcement crosses 3 strong toughness. An anti-corrosion coating 11 is applied to the outside of the polyester layer 10. This anti-corrosion coating 11 uses a corrosion-resistant paint, which improves the corrosion resistance of the buried polyester layer 10, preventing the transverse strips 1, longitudinal strips 2, and grid reinforcement crosses 3 from corroding and breaking after long-term underground use, thus extending the lifespan of the three-dimensional warp-knitted grid. To extend the service life of the grid, a waterproof coating 9 is also applied to the outside of the anti-corrosion coating 11. The waterproof coating 9 uses a waterproof paint, which enhances the waterproof performance of the polyester layer 10, preventing damage to the material caused by prolonged immersion in water underground for the transverse strips 1, longitudinal strips 2, and mesh reinforcement crosses 3. The steel wire strips 12 enhance the tensile and tear strength of the polyester layer 10, ensuring that even if the high-strength polyester industrial filaments break, the steel wire strips 12 can maintain the integrity of the transverse strips 1, longitudinal strips 2, and mesh reinforcement crosses 3, guaranteeing the effectiveness of the three-dimensional warp-knitted grid. The mesh reinforcement crosses 3 further enhance the tensile and tear strength at the gaps in the three-dimensional warp-knitted grid, improving its overall performance.Additionally, the connecting posts 16 can connect the top and bottom mesh reinforcement crosses 3 of the horizontal strip 1 together, improving the tensile and tear resistance of the mesh reinforcement crosses 3.

[0045] 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 multifunctional three-dimensional warp-knitted geogrid for geotechnical construction, comprising transverse strips (1), longitudinal strips (2), and pressure rings (4), characterized in that: The longitudinal strip (2) is installed inside the transverse strip (1), the pressure ring (4) is located at the top of the transverse strip (1), the limit strip (14) is fixedly installed inside the transverse strip (1), the top and bottom of the transverse strip (1) are fixedly installed with a grid-reinforced cross (3), and the opposite side of the grid-reinforced cross (3) is fixedly installed with a connecting post (16). The transverse strip (1) has a limiting insertion hole A (13) inside, and the longitudinal strip (2) has a limiting insertion hole B (15) inside. The positions of the limiting insertion hole A (13) and the limiting insertion hole B (15) are corresponding. A connecting strip (5) is fixedly installed on the opposite side of the pressure ring (4). The bottom of the pressure ring (4) is connected to the insert (8). The inner sides of the pressure ring (4) and the insert (8) are both equipped with seepage cotton (6). The outer side of the insert (8) is provided with an oblique seepage hole (7). The outer diameter of the insert (8) is the same as the inner diameter of the limiting insertion hole A (13) and the limiting insertion hole B (15). The insert (8) is inserted into the inside of the limiting insertion hole A (13) and the limiting insertion hole B (15). The outer diameter of the pressure ring (4) is larger than the inner diameter of the limiting insertion hole A (13) and the limiting insertion hole B (15). The transverse strip (1), longitudinal strip (2) and grid-reinforced cross (3) all include a polyester layer (10), and an anti-corrosion coating (11) is provided on the outer side of the polyester layer (10). A waterproof coating (9) is provided on the side of the anti-corrosion coating (11) away from the polyester layer (10). A steel wire strip (12) is fixedly installed inside the polyester layer (10).

2. The multifunctional three-dimensional warp-knitted geogrid for geotechnical construction according to claim 1, characterized in that: There are multiple horizontal strips (1) and multiple vertical strips (2), and the multiple vertical strips (2) and multiple horizontal strips (1) are arranged in a cross shape.

3. The multifunctional three-dimensional warp-knitted geogrid for geotechnical construction according to claim 1, characterized in that: The limiting strips (14) are in groups of two, and the distance between the two limiting strips (14) in each group is adapted to the width of the longitudinal strip (2).

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