Multidirectional plastic stretching geogrid and manufacturing method thereof

Abstract

The invention relates to a multidirectional plastic stretching geogrid and manufacturing method thereof. The multidirectional plastic stretching geogrid comprises a plurality of unit bodies which areintegrally formed in a stretching mode. Each unit body comprises a rectangular frame formed by two transverse ribs and two longitudinal ribs, a first joint located in the rectangular frame and side ribs extending to the rectangular frame from the first joint. Second joints are formed at the joints of the transverse ribs and the longitudinal ribs. Third joints are formed at the joints of the side ribs and the rectangular frame. Two third joints, adjacent to the same second joint, in the same unit body are connected through a bottom rib. The multidirectional plastic stretching geogrid has a net-shaped structure, so that the superficial area of the grid is increased, and the anchoring locking force between the grid and filler is increased; and the multidirectional plastic stretching geogrid is balanced in strength in all directions and stable in mechanical property in the 360-degree direction, when the geogrid bears concentrated loads, due to the uniqueness of the structure that the unitbodies evenly radiate from the center to the outside, the loads can be evenly dispersed to the periphery, and local load concentration is avoided.

Description

technical field [0001] The invention relates to the technical field of geotechnical materials, in particular to geotechnical synthetic materials used in the fields of geotechnical engineering and civil engineering, in particular to a multi-directional plastic tensile geogrid and a manufacturing method thereof. Background technique [0002] Plastic tensile geogrid is a major geosynthetic material with a grid structure that can anchor and lock soil particles for reinforcement or strengthening. It is often used as reinforcement for reinforced soil structures or reinforcement for composite materials, etc. . [0003] With the continuous development of plastic tensile geogrid, there are many tightening or reinforcing materials with grid structure and plastic as the matrix at home and abroad. For example, common ones: uniaxially stretched plastic geogrid, biaxially stretched plastic geogrid, three-way stretched plastic geogrid, etc. The above products are made of plastic sheets t...

AI Technical Summary

Problems solved by technology

But there are also some problems, for example: the longitudinal strength of the unidirectional tensile geogrid is very large, but the transverse strength is very small, and it is only suitable for a single working condition with a certain direction of force; direction, but the strength is very weak in the diagonal direction, and the nodes must be used to disperse the load, so the nodes are easily damaged; the three-way grid is an equilateral triangle structure, which improves the strength in three directions

However, this kind of grille has the greatest strength when it is horizontal (or vertical) and 60° to the horizontal (or vertical), and the corresponding longitudinal strength is reduced, so there are unstable factors when bearing loads

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