Reinforced three-dimensional geotechnical net revetment

Abstract

The utility model provides a kind of reinforced three-dimensional geotechnical net revetment, including metal guard net, nutrient base course and green vegetation, steep slope is laid on the slope surface of steep slope and is laid metal guard net, a layer of nutrient base course is laid on the bottom layer of metal guard net, green vegetation is planted in nutrient base course and from the surface of metal guard net, the metal guard net of entire steep slope slope surface is formed by several blocks, metal guard net is fastened on steep slope by fastener through nutrient base course, and adjacent metal guard net is fastened together by fastener splicing.The utility model is reinforced through the cross winding structure of vertical rib and interlaced rib of three-dimensional geotechnical net core, forms high-strength three-dimensional network, this structure can effectively disperse the stress of slope soil body, greatly enhances the integrity and shear strength of soil body, to realize the strong reinforcement to steep slope, effectively prevent landslide and soil erosion.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a reinforced three-dimensional geonet slope protection. Background Technology

[0002] In slope protection engineering, traditional slope protection techniques mainly include masonry slope protection, concrete slope protection, and geocell slope protection. While these methods can prevent soil erosion to a certain extent, they suffer from problems such as complex construction, high cost, and poor ecological benefits. For example, although concrete slope protection is structurally stable, it lacks conditions for vegetation growth, resulting in poor ecological landscape effects; while simple geonet slope protection, although allowing vegetation growth, has insufficient erosion resistance and structural strength, making it difficult to maintain long-term stability on steep slopes or in highly eroded areas. In recent years, geonet slope protection has gradually become an important method of slope protection due to its good soil stabilization and water retention performance and vegetation growth support capacity. For example, patent application CN222935925U discloses a hydraulic slope protection net that protects the soil layer of river embankment slopes using geonet slope protection. However, ordinary geonets are prone to deformation or even tearing under steep slopes or heavy rainfall conditions, leading to slope protection failure. Moreover, the connection between spliced ​​geonets is not strong enough and is prone to loosening or separation under long-term external forces. Summary of the Invention

[0003] This invention aims to address the shortcomings of existing technologies by providing a reinforced three-dimensional geonet slope protection system.

[0004] To achieve the above objectives, this utility model adopts the following technical solution:

[0005] A reinforced three-dimensional geonet slope protection includes a metal mesh, a nutrient base layer, and vegetation. The metal mesh is laid on the slope surface of the steep slope, and a nutrient base layer is laid on the bottom layer of the metal mesh. The vegetation is planted on the nutrient base layer and grows out from the surface of the metal mesh. The entire metal mesh on the steep slope is composed of several pieces. The metal mesh is fastened to the steep slope by fasteners passing through the nutrient base layer. Adjacent metal meshes are spliced ​​and fastened together by fasteners.

[0006] The metal protective netting includes an upper metal mesh, a lower metal mesh, and a reinforced three-dimensional geonet core in the middle layer, with a nutrient base layer set between the lower metal mesh and the reinforced three-dimensional geonet core.

[0007] The reinforced three-dimensional geonet core includes vertical bars and interlaced bars. The vertical bars are arranged side by side at intervals, and the interlaced bars are horizontally wrapped between the vertical bars in a crisscross manner.

[0008] The upper and lower metal meshes are hexagonal wire mesh.

[0009] The fastener includes a fastener plate and fastening nails. The fastener plate is a quadrilateral plate with a through hole in the middle. A fastening nail is provided at each of the four corners of the fastener plate, and the four corner fastening nails of the fastener plate pass through the edge of the adjacent metal mesh.

[0010] The four edges of the fastener plate are concave inward to form concave arc edges, and the fastening nails are inclined towards the outer edge of the fastener plate.

[0011] The beneficial effects of this utility model are as follows: This utility model forms a high-strength three-dimensional geonet core through the cross-entwining structure of vertical and interwoven bars. This structure can effectively disperse the stress of the slope soil, greatly enhance the integrity and shear strength of the soil, thereby achieving strong reinforcement of steep slopes and effectively preventing landslides and soil erosion. The nutrient base layer is firmly wrapped between the lower metal mesh and the reinforced three-dimensional geonet core, preventing it from being washed away by rainwater. Plant roots can penetrate through the hexagonal mesh metal mesh, extend into the interior of the slope, and intertwine with the three-dimensional geonet core to form a deep root anchoring system that combines mechanical and plant elements, enhancing the slope protection effect. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the surface structure of the metal mesh of this utility model;

[0014] Figure 3 for Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0015] Figure 4 This is a schematic diagram of the fastener structure of this utility model.

[0016] In the diagram: 1-Metal mesh; 11-Upper metal mesh; 12-Reinforced three-dimensional geonet core; 121-Vertical reinforcement; 122-Interwoven reinforcement; 13-Lower metal mesh; 2-Nutrient base layer; 3-Vegetation; 4-Fasteners; 41-Fastener plate; 42-Fastening nail; 43-Through hole; 5-Steep slope;

[0017] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] A reinforced three-dimensional geonet slope protection includes a metal mesh 1, a nutrient base layer 2, and vegetation 3. The metal mesh 1 is laid on the slope surface of the steep slope 5. A nutrient base layer 2 is laid on the bottom layer of the metal mesh 1. The vegetation 3 is planted on the nutrient base layer 2 and grows out from the upper surface of the metal mesh 1. The metal mesh 1 on the entire slope surface of the steep slope 5 is composed of several pieces. The metal mesh 1 is fastened to the steep slope 5 by fasteners 4 passing through the nutrient base layer 2. Adjacent metal meshes 1 are spliced ​​and fastened together by fasteners 4.

[0020] The metal protective net 1 includes an upper metal net 11, a lower metal net 13, and a middle reinforced three-dimensional geonet core 12. The nutrient base layer 2 is set between the lower metal net 13 and the reinforced three-dimensional geonet core 12. The upper metal net 11 and the lower metal net 13 are made of sturdy metal materials, providing double protection for the internal reinforced three-dimensional geonet core 12 and the nutrient base layer 2. This effectively resists rainwater erosion, water flow erosion, and the impact of external foreign objects, greatly extending the service life of the entire slope protection structure.

[0021] The reinforced three-dimensional geonet core 12 includes vertical bars 121 and interlaced bars 122. The vertical bars 121 are arranged side by side at intervals, and the interlaced bars 122 are horizontally wrapped between the vertical bars 121 in a cross manner.

[0022] The upper metal mesh 11 and the lower metal mesh 13 are hexagonal wire meshes, which allow plant roots to penetrate deep into the slope.

[0023] The fastener 4 includes a fastener plate 41 and fastening nails 42. The fastener plate 41 is a quadrilateral plate with a through hole 43 in the middle. A fastening nail 42 is set at each of the four corners of the fastener plate 41. The four corner fastening nails 42 of the fastener plate 41 pass through the edges of adjacent metal mesh 1. The unique design of the fastener 4 can pass through the edges of multiple adjacent metal mesh 1 at the same time, firmly splicing the metal mesh 1 and anchoring it as a whole on the slope. This can effectively ensure the integrity and stability of the mesh and prevent local warping or falling off.

[0024] The four edges of the fastener plate 41 are concave to form concave arc edges, and the fastening nails 42 are inclined to the outer edge of the fastener plate 41. The concave arc edges of the fastener plate 41 and the outwardly inclined fastening nail design avoid stress concentration and improve the strength of the fastener plate. On the other hand, it allows the fastening nails to be anchored into the soil at a better angle, providing stronger pull-out resistance and ensuring the reliability of the connection.

[0025] During construction, the steep slope 5 requiring protection is first cleaned, removing loose stones, tree roots, debris, etc., to ensure a basically flat slope. For soil slopes, compaction is performed to stabilize and solidify the slope. A nutrient base layer 2 is then laid on the treated steep slope 5. Prefabricated metal mesh 1 is then laid on top of the nutrient base layer 2 from top to bottom, and pressure is applied to embed the nutrient base layer 2 into the gaps between the lower metal mesh 13 and the reinforced three-dimensional geonet core 12 of the metal mesh 1. During installation, the edges of adjacent metal mesh 1 pieces should be tightly joined and secured using fasteners 4. Fastener plates 41 are placed over the joint corners of two or four adjacent metal mesh 1 pieces, with the fastening nails 42 at the four corners of the fastener plates 41 passing through these adjacent metal mesh 1 pieces. Within the edge grid, fastening nails 42 are driven into the steep slope 5 using tools such as hammers until the fastener plate 41 tightly presses against the metal mesh 1 below. Since the fastening nails 42 are designed to be inclined towards the outer edge of the fastener plate 42, they form a stronger anchoring force after being driven in, effectively preventing the metal mesh 1 from lifting or slipping. Through the hexagonal grid of the upper metal mesh 11, vegetation 3 is planted in the downward nutrient base layer 2. Planting can be done by spraying grass seeds. The plant roots will penetrate through the nutrient base layer 2, penetrate deep into the slope, and intertwine with the metal mesh 1, especially the reinforced three-dimensional geonet core 12, to form a strong ecological reinforcement system. After construction, proper watering, fertilization, and other maintenance management are carried out to ensure the healthy survival of the vegetation until its roots can fully play a role in stabilizing the slope.

[0026] Each metal protective mesh 1 is composed of an upper metal mesh 11, a lower metal mesh 13, and a middle reinforced three-dimensional geonet core 12, which are joined together by spot welding or binding. The upper metal mesh 11 and the lower metal mesh 13 are preferably hexagonal wire mesh of high galvanized gabion mesh, and the vertical bars 121 and interlacing bars 122 of the reinforced three-dimensional geonet core 12 are made of polymer materials or metal wire.

[0027] Nutrient base layer 2 is usually an engineering topsoil mixture composed of planting soil, organic fertilizer, fertilizer, water-retaining agent and binder. Its thickness can be determined according to design requirements and vegetation type, and is usually laid with a thickness of 5-10 cm.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication 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.

[0031] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A reinforced three-dimensional geonet slope protection method, characterized in that, The structure includes a metal mesh (1), a nutrient base layer (2), and green vegetation (3). The metal mesh (1) is laid on the slope of the steep slope (5). A nutrient base layer (2) is laid on the bottom layer of the metal mesh (1). Green vegetation (3) is planted on the nutrient base layer (2) and grows out from the top surface of the metal mesh (1). The metal mesh (1) on the entire slope of the steep slope (5) is composed of several pieces. The metal mesh (1) is fastened to the steep slope (5) by fasteners (4) passing through the nutrient base layer (2). Adjacent metal meshes (1) are spliced ​​and fastened together by fasteners (4).

2. The reinforced three-dimensional geonet slope protection according to claim 1, characterized in that, The metal mesh (1) includes an upper metal mesh (11), a lower metal mesh (13), and a reinforced three-dimensional geonet core (12) in the middle layer. The nutrient base layer (2) is set between the lower metal mesh (13) and the reinforced three-dimensional geonet core (12).

3. A reinforced three-dimensional geonet slope protection according to claim 2, characterized in that, The reinforced three-dimensional geonet core (12) includes vertical bars (121) and interlaced bars (122). The vertical bars (121) are arranged side by side at intervals, and the interlaced bars (122) are horizontally wrapped between the vertical bars (121) in a cross manner.

4. A reinforced three-dimensional geonet slope protection according to claim 2, characterized in that, The upper metal mesh (11) and the lower metal mesh (13) are hexagonal wire mesh.

5. A reinforced three-dimensional geonet slope protection according to claim 4, characterized in that, The fastener (4) includes a fastener plate (41) and fastening nails (42). The fastener plate (41) is a quadrilateral plate with a through hole (43) in the middle. A fastening nail (42) is provided at each of the four corners of the fastener plate (41). The four corner fastening nails (42) of the fastener plate (41) pass through the edge of the adjacent metal mesh (1).

6. A reinforced three-dimensional geonet slope protection according to claim 5, characterized in that, The four edges of the fastener plate (41) are concave to form concave arc edges, and the fastening nails (42) are inclined to the outer edge of the fastener plate (41).

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