A polypropylene two-way plastic geogrid

Abstract

The invention provides a polypropylene bidirectional plastic geogrid, which includes transverse ribs, longitudinal ribs and connecting blocks. Arc slopes are provided at the top positions of the left and right ends of the connecting blocks, and several holes are opened on the inner surface of the top side of the arc slopes. A first rotating shaft is rotatably installed at one end of the groove and the hole groove, a baffle plate is fixedly installed at the upper end of one side of the outer surface of the first rotating shaft, and the left and right ends of the connecting block are provided with arc cavities. Connection grooves are fixedly installed through the outer surface of the side and the inner left and right ends of the connection grooves are provided with slide rails. The upper moving plate is fixedly installed between the two upper sliding bars, and the lower moving plate is fixedly installed between the two lower sliding bars. The invention can play the role of providing a fixed structure to the bottom end of the rib to avoid the problem that the grille is displaced and separated from the soil surface layer under strong wind blowing.

Description

technical field [0001] The invention relates to the technical field of coal mine underground mining, in particular to a polypropylene bidirectional plastic geogrid. 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] Based on the above description, Chinese Patent App...

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Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides a polypropylene two-way plastic geogrid, which aims to solve the problem that the two-way plastic geogrid in the prior art has no fixed structure at the bottom of the ribs. The grid will be shifted under the strong wind, so there will be technical problems that the grid will be detached from the soil surface as a whole

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