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Welding connected geogrid and manufacturing method thereof

A geogrid and welding connection technology, which is applied in the field of geotechnical reinforcement materials, can solve the problem of low strength of the geogrid joint and achieve the effect of improving the tensile strength

Pending Publication Date: 2018-12-07
赵艳红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a welded and connected geogrid and its manufacturing method to solve the problem of low strength at the geogrid connection in the background technology, so that the connection strength of the geogrid connection is not low Based on the strength of the geogrid itself and the joints are fixed and will not move

Method used

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  • Welding connected geogrid and manufacturing method thereof
  • Welding connected geogrid and manufacturing method thereof
  • Welding connected geogrid and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A welded geogrid, comprising two geogrid single nets 1, the edge parts of the two geogrid single nets 1 overlap up and down, and a connecting piece 2 is arranged in the grid of the overlapping part, and the left and right sides of the connecting piece 2 The two sides are respectively welded and fixed with two geogrid single nets 1, and the welding and fixing are realized through the welding part 3. The welding part 3 is to melt and extrude the long strip of plastic between the connecting part 2 and the geotechnical grid through an extrusion welding machine or an injection molding machine. Between the ribs of the grid single net 1, it is formed by cooling and solidifying.

[0042] In this example, if figure 1 As shown, the geogrid single net is a planar network structure formed by interlaced connection of multiple ribs made of PE material, the grid is rectangular, and the width of one edge rib of the geogrid single net 1 is larger than that of other ribs width, and this...

Embodiment 2

[0046] A welded geogrid, comprising two geogrid single nets 1, the edge parts of the two geogrid single nets 1 overlap up and down, and the grids of the overlapping parts are filled with welding parts 3, so that the two geogrids The grid single net 1 is welded and fixed, and the welded parts 3 are formed by melting and extruding plastic strips into overlapping grids through an injection molding machine, and cooling and solidifying. The molten plastic contacts the ribs on the left and right sides of the overlapping grid, and after cooling and solidifying, the ribs on both sides are fixedly connected together.

[0047] In this example, if figure 1 As shown, the geogrid single net is a planar network structure formed by the cross connection of multiple ribs made of PP material. The grid is triangular. The width of one edge rib of the geogrid single net 1 is larger than that of other ribs The width of a whole continuous elongated rib 11 is formed, and the elongated rib 11 is equa...

Embodiment 3

[0051] The difference between this embodiment and Embodiment 1 is that the weldment 3 is made of PP material, the ribs of the geogrid single net 1 are made of PP material, and the bottom of the ribs of the geogrid single net 1 is provided with grooves, and the grooves can be only Be arranged at the bottom of the edge ribs, and also can be arranged at the bottom of all ribs. In this embodiment, grooves are arranged at the bottom of the edge ribs. The edge of the geogrid single net of this embodiment is not provided with elongated ribs. 11. U-shaped nails are used for connecting piece 2, such as Image 6 As shown, the two sides of the staple are respectively inserted into two adjacent overlapping grids, and the welded parts 3 in the molten state are filled in the overlapping grids, wrapping the staple, and after cooling and solidifying, the staple and its The surrounding ribs are fixedly connected.

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Abstract

The invention provides a welding connected geogrid and a manufacturing method thereof. The welding connected geogrid comprises a plurality of geogrid single nets, the adjacent geogrid single nets areoverlapped up and down, grid bodies in the overlapping part are internally welded and fixed, the welding fixation is realized through welding pieces, and the welding pieces are formed by cooling and curing fused plastic. According to the welding connected geogrid and the manufacturing method thereof, the welding pieces are used for realizing the connection of the geogrid single nets, so that the strength of rib strips of the geogrid single nets is not damaged; moreover, the welding pieces are formed by cooling and curing the fused plastic, the welding pieces are arranged in the overlapped gridbodies, the rib strips of the geogrid at the welding positions and the welding pieces are enabled to form an integrated structure, so that when the geogrid single nets on the two sides of the weldingpositions are subjected to external tension, the welding pieces are extruded by the rib strips on the two sides, the geogrid single nets at the welding positions cannot be separated, and the tensilestrength of the welding positions is improved.

Description

technical field [0001] The invention relates to the technical field of geotechnical reinforcement materials, in particular to a welded geogrid and a manufacturing method thereof. Background technique [0002] Plastic geogrid is a two-dimensional grid-like mesh material made of polypropylene, high-density polyethylene and other high-molecular polymers as the main raw material through extrusion and direct stretching or extrusion and stretching and welding. It is generally used for Laid in the soil, through the occlusal and interlocking effect between the grid mesh and the soil, an efficient stress transfer body is formed, so that the local load can be quickly and effectively transferred to a large area of ​​soil, so as to realize The purpose of reducing the local failure stress and improving the service life of the project, so the plastic grid is an extremely important reinforcement material used in the field of civil engineering. [0003] In the existing technology, the prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/00E01C3/00E02B3/00B29C45/14B29C47/02
CPCE01C3/00E02B3/00E02D3/005B29C45/14467E02D2300/0084
Inventor 何晓婷赵艳红
Owner 赵艳红