High-intensity welding point geogrid

A geogrid and welding point technology, which is applied in infrastructure engineering, roads, excavation, etc., can solve the problems of low welding strength between ribs, affecting the service life of grids, and low shear resistance of joints. Achieve the effect of improving shear resistance, prolonging service life and improving service life

Inactive Publication Date: 2011-01-26
YIXING HUATAI EARTHWORK MATERIAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These grids are formed by criss-crossing ribs and ribs, and ribs and ribs are generally formed by direct welding. Since steel wires and other reinforcing materials are added to these composite grid ribs, the polyethylene material on the surface of the ribs is very Thin, the welding strength of ribs and ribs is not high, and the joints are easy to desolder. In engineering applications, the service life of the grid is often affected by the low shear force of the joints

Method used

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  • High-intensity welding point geogrid

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with accompanying drawing:

[0013] A high-strength welded point geogrid, including ribs 3, is characterized in that the adjacent ribs 3 are placed between the upper connecting piece 1 and the lower connecting piece 2, through the upper connecting piece 1 and the lower connecting piece The connecting block composed of 2 is welded as a whole by ultrasonic welding.

[0014] A groove 4 is provided on the joint surface of the upper connecting piece 1 and / or the lower connecting piece 2 .

[0015] Grooves 4 corresponding to the size of the geogrid can be made on the joint surface of the two connecting sheets according to the width and thickness of the geogrid. When the geogrid is manufactured, the upper connecting piece 1 and the lower connecting piece 2 are installed at the joint between the ribs 3 and the ribs 3, and they are welded firmly by ultrasonic waves.

[0016] The grid made of the connecting bl...

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Abstract

The invention discloses a high-intensity welding point geogrid, comprising rib bands. The high-intensity welding point geogrid is characterized in that adjacent rib bands are arranged between an upper connecting piece and a lower connecting piece and welded into a whole through a connecting block formed by the upper connecting piece and the lower connecting piece in an ultrasonic wave way. A joint surface of the upper connecting piece and / or the lower connecting piece is provided with a groove. In the invention, when the geogrid is manufactured, the upper connecting piece and the lower connecting piece are arranged on a connection part of the rib bands which are formed by welding through the ultrasonic wave. The grid manufactured by the connecting block has the advantages of large welding surface and high intensity of the welding part, and particularly greatly improves the shearing resistance of the welding part, thereby prolonging the service life of the grid. In actual project application, the service life of the grid can be prolonged.

Description

technical field [0001] The invention belongs to the application field of geogrids, in particular to a high-strength welded geogrid used for reinforcement under foundations such as railways and highways. Background technique [0002] There are many kinds of geogrids currently used as foundation reinforcement materials such as railways and highways. Some plastic grids with small rib widths can be directly manufactured into overall grid or mesh grids through equipment. The connection between ribs is due to One piece, regardless of the strength of the connection point. However, due to the constraints of mechanical equipment, this kind of production cannot produce integral grids with wider ribs. Especially with the increase in the strength requirements of grids, many companies have developed various styles of high-strength geogrids. Such as steel-plastic composite geogrid and so on. These grids are formed by criss-crossing ribs and ribs, and ribs and ribs are generally formed b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/00E02D17/20
Inventor 李文平蒋卫锋
Owner YIXING HUATAI EARTHWORK MATERIAL
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