Understanding the Gabion Basket
Technical Product Description
Gabion Basket System
*EN 10223-3 & ASTM A975 Certified Erosion Control Solution*
Core Construction
▸ Fabricated with ISO 9444-compliant low-carbon steel wire
▸ Double-twist hexagonal mesh woven by CNC machinery (diameter tolerance: ±0.1mm)
▸ Anti-corrosion protection:
- Primary: Hot-dip galvanizing (Zn coating ≥220g/m²)
- Optional: Galfan alloy coating (5% Al-Zn) for pH 3-11 resistance
Engineering Advantages
| Performance Metric | Test Result | Standard |
|---|---|---|
| Tensile Strength | 350-500 N/mm² | EN 10218-1 |
| Deformation Resistance | ≤3% under 50kN/m² load | ASTM D6637 |
| Service Life | 40+ years coastal zones | ISO 9227 |
Operational Benefits
- Channel StabilizationReduces flow velocity by 60% (vs concrete channels)
- Slope Consolidation98% sediment retention in 25° inclines
- Infrastructure ProtectionPrevents 80% roadbed collapses in flood zones
Main construction requirements
Ⅰ. Pre-Installation Preparation
- Slope Profiling
- Trim substrate to remove protrusions >50mm
- Maintain natural contours (max. 15mm elevation variance per 3m)
Ⅱ. Assembly Sequence
| Step | Critical Operation | Tolerance |
|---|---|---|
| 1 | Staggered Placement – Offset joints vertically ≥300mm | ±25mm |
| 2 | Panel Erection – Secure adjacent sides with 2.2mm binding wire | Spiral pitch ≤500mm |
| 3 | Tiered Connection – Lash lower border to underlying unit at 150mm intervals | Zinc coating damage <3% |
Ⅲ. Stone Filling Specifications
- Material Requirements:markdown• Origin: Alluvial river stone (ASTM D75) • Compressive Strength: ≥25 MPa (EN 1926) • Gradation: 80-200mm diameter (15% <80mm allowed)
- Placement Protocol:
- Fill simultaneously across entire tier
- Max. elevation differential: 350mm between adjacent units
- Achieve 95% compaction density
Ⅳ. Capping & Ecological Integration
- Cover Installation:
- Secure lid with double-helix binding pattern (pitch ≤50mm)
- Vegetative Layer:
- Apply 100-150mm humus topsoil (pH 6.0-7.5)
- Seed with Festuca arundinacea (erosion control grass)
