Applications of Warp‑Knitted PET Geogrid
Applications of Warp‑Knitted PET Geogrid
Warp‑knitted PET geogrid features high tensile strength, low elongation, excellent creep resistance, and high junction strength with good acid‑alkali resistance. It is widely applied for soil reinforcement, soft‑soil foundation treatment and reinforced‑slope projects subject to long‑term loading.
1. Highway Engineering (Most Common Application)
- Subgrade reinforcement for new‑built highways: improve bearing capacity and mitigate differential settlement to prevent pavement cracking.
- Reconstruction and widening of existing roads: reinforce joints between old and new subgrades to restrain differential‑settlement‑induced longitudinal cracks.
- Reinforcement for low‑grade highways, rural roads, plant roads and parking lots.
2. Railway & Transit Engineering
- Subgrade reinforcement and soft‑ground treatment for high‑speed and conventional railways.
- Embankment and high‑fill slope stabilization to control long‑term creep‑related settlement.
- Backfill reinforcement for metro yards and light‑rail subgrades. *CRCC‑certified products are normally required for railway projects.*
3. Retaining Walls & Reinforced Soil Slopes
- Reinforced‑soil retaining walls, eco‑bag walls and lattice slope protection (uniaxial warp‑knitted PET geogrid is preferred).
- Stabilization of steep high‑fill slopes in mountainous areas to reduce sliding risks.
- Abutment back‑fill reinforcement to alleviate bump‑at‑abutment issues.
4. Municipal Engineering
- Subgrade for urban arterial roads and expressways; backfill reinforcement in sponge‑city zones.
- Backfill reinforcement for utility tunnels and box culvert foundations to control backfill settlement.
- Slope reinforcement within landfill liner systems (PVC‑coated chemical‑resistant grade required).
5. Airport, Port & Heavy‑load Storage Yards
- Foundation stabilization for airport runways and aprons.
- Reinforcement for port container yards and mineral stockyards under repeated heavy‑duty loads.
6. Hydraulic & River‑Regulation Works
- Embankment reinforcement for river levees and sea dykes; soft‑base treatment for bank‑protection structures to enhance anti‑slide performance.
7. Mining & Geotechnical Projects
- Slope stabilization for mine waste dumps and tailings ponds.
- Backfill reinforcement for quarry restoration and karst‑cavity‑developed sites.
8. Other Fields
- Subgrade and access‑road reinforcement for photovoltaic power‑station sites.
- Foundation treatment for large‑scale sports grounds and plazas.
> Selection Tips
- Biaxial warp‑knitted PET geogrid: for subgrade widening, soft‑ground improvement and subbase reinforcement under multi‑directional in‑plane loading.
- Uniaxial warp‑knitted PET geogrid: for retaining‑wall and high‑fill‑slope reinforcement under predominant longitudinal tension.
- For saline‑alkali sites and landfills, select products with modified PVC acid‑alkali‑resistant coating for enhanced chemical durability.
