Geogrid
Geogrids are a special form of geosynthetics or geotextiles . Among other things, they serve to stabilize the subsoil in the course of construction work. They work as reinforcement for unbound mineral layers such as sand and earth. By using geogrids, the static loads introduced are distributed over a large area on the ground. The aim is to increase or restore the load-bearing capacity as well as the prevention of strong localized subsidence without costly and time-consuming soil replacement with more load-bearing material. Furthermore, the use of geogrids in supporting structures is an alternative to z. B. gravity walls instead.
Geogrids usually consist of industrially produced, UV- resistant polymer grids made of high-density polyethylene (PEHD), polypropylene (PP) or polyester (e.g. polyethylene terephthalate (PET)), but they can also be made from natural fibers or bioplastics. Depending on the manufacturing process, there are extruded and woven meshes. With regard to the load-bearing behavior, a distinction is made between rigid, rigid and flexible geogrids.