High Strength 50KN Polypropylene Geogrid Soil Reinforcement

TGDG 50-50 KN Road Railway Construction High Strength Polypropylene Uniaxial Plastic Geogrid

Uniaxial Plastic Geogrid Introduction

1. Unidirectional geogrid is made of high molecular polymer (PP or HDPE) extruded into thin plates, punched into regular mesh, and then stretched longitudinally. In this process, the polymer is in a linear state, and a long elliptic network structure with uniform distribution and high node strength is formed. Uniaxial tensile geogrid is a kind of high strength geosynthetics.
2. Unidirectional tension geogrid is a kind of high strength geomembrane with high polymer as main raw material, adding certain anti ultraviolet and anti-aging AIDS, and unidirectional stretching to make the original scattered chain molecules rearranged in a linear state, extruded into thin sheets, then punching regular holes, and then longitudinally stretched. In this process, the polymer is in a linear state, and a long elliptic network structure with uniform distribution and high node strength is formed.

Uniaxial Plastic Geogrid Specification

Uniaxial Plastic Geogrid Features

Uniaxial plastic geogrid is specially designed for soil reinforcement. It is manufactured with High Density Polyethylene resins or polypropylene, from the process of extruding and longitudinal stretching. It has high tensile strength, excellent interlock capacity, and low creep deformation. High quality uniaxial plastic geogrid has High tensile strength, good creep performance, convenient construction, low price.

Plastic Uniaxial Geogrid Applications

Plastic uniaxial geogrid is the kind of high strength geosynthetic material which can be used for any soil stabilization and reinforcement applications. The uniaxial plastic geogrid can bears alternating loads in the foundation and surface layer of road, it can also reduce the settlement of road surface and improve the self-support capacity of the soil. The uniaxial plastic geogrid can reduce the pressure of the retaining wall and extend the service life. Plastic uniaxial geogrid is widely used in dams, tunnels, piers, roads, railways, construction and other fields.

Editing of construction points

1. Construction site: it is required to compact and level, and remove the sharp protuberances.
2. Grid laying: on the flat and compacted site, the main stress direction (longitudinal) of the grid installed and laid shall be vertical to the axis of the embankment, and the laying shall be flat without wrinkles, and shall be tensioned as far as possible. The main stress direction of the laid grid is the full length without joint. The connection between the width and width can be bound and overlapped manually, and the lap width is not less than 10 cm. If the grid is more than two layers, the joints between layers shall be staggered. After large area laying, the flatness shall be adjusted as a whole. After filling a layer of soil and before rolling, the grid should be tensioned again by manual or machine tools, and the force should be uniform to make the grid in the soil in a straight stress state.
3. Selection of filler: the filler shall be selected according to the design requirements. It has been proved by practice that except frozen soil, swamp soil, domestic garbage, chalk soil and diatomite, they can be used as fillers. However, gravel soil and sand soil have stable mechanical properties and little affected by water content, so they should be preferred. The particle size of filler shall not be greater than 15cm, and the grading of filler shall be controlled to ensure the compaction weight.
4. Paving and compaction of filling materials: when the grid is laid and positioned, it shall be filled and covered in time, and the exposed time shall not exceed 48 hours. The flow operation method of laying and backfilling can also be adopted. First pave the filler at both ends, fix the grid, and then push forward to the middle. The rolling sequence is from two sides to the middle. During rolling, the roller can not directly contact with the reinforcement material, and the vehicle is not allowed to drive on it for fear of dislocation of reinforcement material. The compaction degree of each layer is 20-30cm. The compactness must meet the design requirements, which is also the key to the success or failure of reinforced soil engineering.
5. Waterproof and drainage measures: in reinforced soil engineering, the drainage treatment inside and outside the wall must be done well; the foot protection should be done to prevent erosion; the filtration and drainage measures should be set in the soil, and if necessary, the geotextile and permeable pipe (or blind ditch) should be set. Drainage should be conducted in a way that can not be blocked, otherwise hidden dangers will occur