The Active Slope Protection Net consists of hot-dip galvanized steel wire rope mesh, support ropes, anchor rods, and stitching ropes. Applied to natural slopes or engineered cuttings, Active Slope Protection Net exerts pre-tension (10–50 kN on edge ropes) to confine loose rock and soil, preventing collapse and controlling rockfall trajectory. The GPS2 configuration offers a protection energy level up to 100 kJ and a service life of ≥30 years under normal conditions.
Technical Parameters
|
Component |
Specification |
Remarks |
|
Wire Rope Mesh |
D0/08/300, 4×4 m panel |
D0 = hot-dip galvanized, Φ8 mm rope, 300×300 mm aperture |
|
Wire Garble Mesh |
SO/2.2/50, 2.6×10.2 m |
Φ2.2 mm wire, 50×50 mm aperture |
|
Horizontal Support Rope |
Φ16 mm (1×19 construction) |
Breaking force ≥120 kN |
|
Vertical Support Rope |
Φ12 mm (1×19 construction) |
Breaking force ≥70 kN |
|
Stitching Rope |
Φ8 mm |
Same as main mesh wire |
|
Anchor Rod |
Φ16 mm wire rope anchor, L=2.0–4.0 m |
Grid spacing 4.5×4.5 m, pullout force ≥50 kN |
|
Protection Energy Level |
≤100 kN·m (100 kJ) |
For GPS2 standard |
|
Anti-corrosion |
Hot-dip galvanizing |
Zinc coating ≥100 g/m² |
|
Service Life |
≥30 years (hot-dip galvanized) |
Alternative: ≥50 years (Zn-Al alloy), ≥20 years (PE coated, light-avoided) |
|
Installation Pre-tension |
Edge rope 10–50 kN |
Applied for slope surface conformity |
Product Advantages
- Wire rope tensile strength ≥1770 MPa; single Φ8 mm wire breaking force ≥40 kN.
- Support rope breaking forces: horizontal ≥120 kN, vertical ≥70 kN.
- Anchor pullout resistance ≥50 kN per rod; length adjustable 2–4 m based on soil/rock conditions.
- Mesh aperture 300×300 mm controls block size; optional SO/2.2/50 secondary grid (50×50 mm) retains small debris.
- Pre-tensioned installation (10–50 kN on edge ropes) provides active slope confinement.
- Corrosion resistance: hot-dip galvanized (≥100 g/m² zinc) yields ≥30 years service life. Zn-Al alloy coating extends to ≥50 years.
Applications
Highway and railway cuttings in mountainous regions.
Mine slope stabilization and quarry face protection.
Weathered rock slopes and shallow soil slopes requiring erosion control.
Areas with small to medium loose blocks (GPS2: ≤100 kJ; GTC types: ≤50 kJ, blocks ≤1 m³).
Frequently Asked Questions (FAQ)
Q1: What is the difference between GPS2 and GAR2?
A: GPS2 includes both D0/08/300 wire rope mesh and SO/2.2/50 wire garble mesh (double layer), suitable for slopes with small loose rocks. GAR2 uses only the wire rope mesh (single layer), designed for stable rock slopes without small debris.
Q2: How long can the Active Slope Protection Net last?
A: Standard hot-dip galvanized system lasts ≥30 years. For extended life (≥50 years), a Zn-Al alloy coating is available. GTC-65A/B types offer approximately 100 years but with 70–80% strength retention and are not recommended for blocks larger than 1 m³.
Q3: Which model should be selected for a soil slope with small falling stones?
A: GPS2 (with SO/2.2/50 wire garble mesh) or GTC-65A (high-strength garble mesh with long corrosion life) are appropriate. GPS2 offers higher strength (≤100 kJ); GTC-65A provides longer life (≈100 years) but lower energy absorption (≤50 kJ).
Q4: What does the marking D0/08/300 mean?
A: D0 indicates hot-dip galvanized steel wire rope; 08 indicates wire diameter Φ8 mm; 300 indicates mesh aperture 300×300 mm.
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