Unidirectional plastic Geogrid It refers to the polymerization with density ethylene （ HDPE ）Raw material, plasticized and extruded board The geogrid is formed by punching, heating and stretching, extruding and pressing, punching the thin plate into regular hole network, and then stretching longitudinally. It is generally used for laying in the soil, forming a stress transmission mechanism through the occlusion and interlocking between the grid mesh and the soil, so that local loads can quickly spread to large areas of soil, so as to reduce local failure stress and improve the service life of the project Product point
1. Strengthen subgrade, distribute diffusion load locally, improve stability and bearing capacity of subgrade, and extend service life;
2. It can bear * * * large alternating load; 3. Prevent subgrade deformation and cracking caused by loss of subgrade materials;
4. Increase the self bearing capacity of the filling behind the retaining wall, reduce the earth pressure of the retaining wall, save costs, extend the service life, and reduce maintenance costs;
5. Slope maintenance combined with shotcrete anchor concrete construction method can not only save 30-50 * * *, but also shorten the construction period by more than twice;
6. Adding geogrid to the subgrade and surface layer of the highway can reduce deflection, reduce rutting, delay the occurrence time of cracks by 3-9 times, and reduce the thickness of the structural layer by 36;
7. It is suitable for all kinds of soil and can be obtained from different places, saving labor and time;
8. The construction is simple and fast, which can greatly reduce the construction cost.
Scope of application
It is mainly used for retaining walls, abutments, steep slope works, etc;
Retaining walls and abutments belong to stressed structures, which bear all external loads: active earth pressure, dynamic load on the upper part of the structure, temperature stress, etc. Under the long-term tension of reinforced materials, and under the repeated action of dynamic load, the molecular structure of materials will fatigue, and their performance will decay, accelerating the grid. In order to avoid the deformation of the structure due to the creep of reinforced materials, the unidirectional plastic geogrid made of HDPE shall be used.
