2 Geogrids classification characteristics
Geogrid is a major geosynthetic material. Geogrids are divided into four categories: plastic geogrids, steel-plastic geogrids, glass fiber geogrids, and glass fiber polyester geogrids. Compared with other geosynthetics, it has unique performance and efficacy. Geogrids are often used as reinforcement material for reinforced soil structures or reinforcement material for composite materials, etc.
It is used in the fields of soft ground reinforcement, retaining wall and roadway anti-cracking engineering for highways, railroads, bridge abutments, approach roads, docks, dams and slag yards, etc.
3 Geogrid engineering role
1、Great strength, small creep, adapt to all kinds of environmental soils, can fully meet the use of high-grade highway in the tall retaining wall.
2、Can effectively improve the reinforced bearing surface of the embedded lock, bite effect, greatly enhance the bearing capacity of the foundation, effectively restrain the lateral displacement of the soil body, enhance the foundation stability performance.
3、Compared with traditional grating, it has the characteristics of high strength, strong bearing capacity, corrosion resistance, anti-aging, large friction coefficient, uniform eyelet, convenient construction, long service life, etc.
4、It is more suitable for deep-sea operation and embankment reinforcement, which fundamentally solves the technical problems of low strength, poor corrosion resistance, and short service life caused by long-term seawater erosion of other materials for gabions.
5、It can effectively avoid the construction damage caused by the crushing and destruction of the machine during the construction process.
4 Geogrid engineering role
1、Great strength, small creep, adapt to all kinds of environmental soils, can fully meet the use of high-grade highway in the tall retaining wall.
2、Can effectively improve the reinforced bearing surface of the embedded lock, bite effect, greatly enhance the bearing capacity of the foundation, effectively restrain the lateral displacement of the soil body, enhance the foundation stability performance.
3、Compared with traditional grating, it has the characteristics of high strength, strong bearing capacity, corrosion resistance, anti-aging, large friction coefficient, uniform eyelet, convenient construction, long service life, etc.
4、It is more suitable for deep-sea operation and embankment reinforcement, which fundamentally solves the technical problems of low strength, poor corrosion resistance, and short service life caused by long-term seawater erosion of other materials for gabions.
5、It can effectively avoid the construction damage caused by the crushing and destruction of the machine during the construction process.
5 Introduction of steel-plastic geogrid
Steel-plastic grating is made of high strength steel wire wrapped in high density polyethylene to form a high strength strip, which is welded at right angles to the plane of warp and weft and formed by ultrasonic welding.
Features of steel-plastic geogrid
- The tensile force of steel-plastic grating is borne by the high-strength steel wire woven in warp and weft, which produces high tensile modulus under low strain capacity.
- The steel wire of longitudinal and transverse ribs of steel-plastic composite geogrid is woven by warp and weft, and the outer wrapping layer is formed at one time, the steel wire and outer wrapping layer can coordinate, and the elongation rate of damage is very low (not more than 3%). The main force unit of steel-plastic composite geogrid is steel wire, and the creep amount is very low.
- Through the treatment of the plastic surface during the production process, a rough pattern is pressed to enhance the roughness of the grating surface and improve the friction coefficient between the steel-plastic composite geogrid and the soil.
- The width of the steel-plastic grating can be up to 6 m to achieve efficient and economic reinforcement effect.
- The high-density polyethylene used in steel-plastic grating can ensure that: it will not be eroded by acid and salt solution or oil at room temperature; it will not be attacked by water dissolution or microorganisms. At the same time, the high molecular properties of polyethylene are sufficient to resist the aging caused by ultraviolet radiation. The longitudinal and transverse ribs of the grating act in synergy after being stressed, so that no pulling or breaking of the knots will occur. And the actual project, after the compaction of the filler, is thus not subjected to the erosion of ultraviolet light and oxygen, so it can fully meet the requirements of permanent engineering construction.
- Strength, creep is small, adapt to all kinds of environmental soil, can fully meet the high-grade highway in the use of tall retaining walls.
- It can effectively improve the reinforced bearing surface embedding lock, bite effect, greatly enhance the bearing capacity of the foundation, effectively restrain the lateral displacement of the soil body, enhance the foundation stability performance.
- Compared with traditional grating, it has the characteristics of high strength, strong bearing capacity, corrosion resistance, anti-aging, large friction coefficient, uniform eyelet, convenient construction, and long service life.
- More adaptable to deep-sea operations, embankment reinforcement, fundamentally solves the technical problems of low strength, poor corrosion resistance, short service life caused by long-term seawater erosion of other materials to do gabions.
- Can effectively avoid the construction damage caused by machine crushing and destruction in the construction process.
Leave A Comment