Uniaxial geogrid based on high density polyethylene (HDPE) as raw material, is a high-strength geosynthetic materials, plastics extrusion plates, punching, heating, drawing made. By stretching makes chain-shaped molecule of the original distribution of scattered re-orientation of the linear state and fully improved tensile strength and rigidity of the grid. Be laid in the soil, constitute an efficient stress transmission mechanism through the the grille mesh soil between the bite and the interlocking role, the local load quickly spread to a large area of ??soil, enabling to reduce the local failure stress, improve the the Engineering service life of purpose. Features advantage is that in the long-term sustained loads little tendency to deformation (creep), the creep strength is significantly better than other materials geogrid improve engineering life and improve the profile of the bearing capacity of the walls or dams, extending service life, reduce floor space and shorter cycle times, reduce cost, reduce maintenance costs, it is widely used in reinforced reinforcement material. Enhanced roadbed and effectively diffuse its load to improve stability and bearing capacity of the subgrade, extend the service life; 2. Alternating load can withstand greater; 3. Prevent subgrade deformation caused by the loss of roadbed materials, cracking; 4 retaining wall backfill self-supporting capacity improved to reduce the earth pressure retaining wall, to save costs, extend the service life and reduce maintenance costs; 5. Combine anchor sprouting concrete construction method for slope maintenance, not only can save 30% -50% of the investment, and can shorten the construction period more than doubled; 6. highway roadbed and surface geogrid can reduce deflection and reduce rutting postponed cracks appear 3-9 times can be reduced structural thickness of up to 36%; 7. applicable to a variety of soil, do not need to draw material from, saving time and labor; 8 construction is simple and quick, and can greatly reduce the cost of construction. 9, unidirectional high tensile strength, creep resistance, chemical stability; 10, and the coefficient of friction of the sand and gravel. Construction methods ○ when used for roadbed, pavement, construction methods and the way geogrid. ○ When used in reinforced earth retaining wall, the construction methods are as follows: 1, set the basis for the design of the wall system construction, when elected precast reinforced concrete panel, usually 12-15 cm thick supported on the basis of pre-cast concrete. Its width is not more than 30 cm, and a thickness of not less than 20 cm, depth of not less than 60 cm to prevent the foundation frost heave. 2, the flat base of the wall, according to design requirements excavation, leveling. Soft soil required compaction or other fill, compacted to the required density should be slightly beyond the walls. 3, the laying of reinforcement, the main strength of the reinforcement direction should be perpendicular to the walls, fixed to the pin. The wall backfill mechanical filling, the distance between the wheels and the reinforcement should be kept at least 15 cm. 20-15 cm thick layer of soil compaction after. 5, the construction of the wall, the wall at the package geotextile prevent filling dropout. Usage: Uniaxial geogrid is a high-strength geosynthetic materials, widely used in dams, tunnels, docks, roads, railways, buildings, rivers, lakes and the coast reinforced retaining walls, dams, deck, steep slopes and Geocell engineering. 1, mainly used for retaining walls, abutments, steep slopes engineering;, retaining walls and abutments belonging to the force structure, and assume all external loads: active earth pressure, the upper part of the structure of dynamic load, temperature stress, reinforcement material in a larger tension for a long time, as well as the repeatedly under dynamic load, the molecular structure of the material fatigue performance occurred attenuation, accelerated aging of the grille. A high density polyethylene (HDPE) as a raw material should be selected to avoid the structure due to the creep of the reinforcement materials and produce large deformation unidirectional geogrid. One-way plastic geogrid construction methods, when used in the subgrade, pavement, excavation of foundation bed, set the sand cushion (height difference of not more than 10cm), rolled into the platform, laying the grille, and the vertical axis to should Geocell is mainly affected by the direction of the force, the longitudinal lap 15-20cm, horizontal 10cm, lap banding with plastic tape, and laying on the grill every 1.5-2m with a U-shaped nails fixed on the ground, laying gate should backfill material in a timely manner, the laying of geogrid layers, as the technical requirements. Second, when used in reinforced earth retaining wall construction payment as follows: 1, set the basis for the design of the wall system construction, elected with a precast reinforced concrete panels, generally thick 12-15cm is supported on the basis of pre-cast concrete. Its width is not more than 30cm, thickness not less than 20cm, depth of not less than 60cm to prevent the foundation frost heave;, flat base of the wall, according to design requirements excavation, leveling. Required compaction or change the fill soft soil, compacted to the required density should be slightly beyond the walls; laying of reinforcement, the main strength of the reinforcement direction should be perpendicular to the walls, fixed to the pin; 4 wall backfill, The by mechanical filling, the distance between the wheels and the reinforcement should be kept at least 15cm and the compaction layer of soil thickness of about 15-20cm; the construction of the wall, the wall at package geotextile to prevent filling dropout.