Abstract
By attaching the tenon design to the high-density polyethylene (HDPE) steel-plastic composite geogrid, one new type of geogrid structure named steel-plastic tenon geogrid is designed, which can improve the anti- extraction stability of the grid, further improve the stability of rock and soil, reduce the number of grids, and save project investment. Therefore, it is very important to study and master the structural features of the tenon geogrid in engineering applications. Through a large number of studies about laboratory pull-out tests, the author applied related software to numerically simulate the structural features of the tenon geogrid, and then obtained the relative rule between the tenon thickness, the tenon side length, the mesh size of the grid, and the geogrid-soil interface parameters. This is of great significance to the design and application of the steel- plastictenon geogrid.