Active Slope Protection Nets: Construction Specifications & Quality Standards

    As China rapidly develops transportation networks (highways, railways) and hydraulic projects, slopes and mountainous terrains pose significant challenges. Active slope protection nets are critical for both construction-phase safety and post-completion maintenance to ensure long-term stability. However, due to the lack of unified industry standards, the following site-tested guidelines are recommended:

  1. Anchor Rod Specifications

• Length: 2–3 meters (site-adjusted based on geological surveys).

• Anchorage Tensile Strength: ≥50 kN.

• Density: 75%–90% coverage (optimized for load distribution).

• Applications: Random anchor support, mesh anchoring, etc., reducing labor costs while enhancing structural resilience.

  2. Galvanized Mesh Requirements

• Material: Hot-dip galvanized steel wire (ASTM A123/A123M compliance).

• Anti-Corrosion Performance: Long-term rust resistance under harsh environmental conditions.

  3. Bolt Anti-Corrosion Measures

• Issue: Bolts are corrosion-prone weak points.

• Solution: Apply epoxy coatings or zinc-rich primers post-installation.

  4. Acceptance Criteria

• Load Testing: Verify anchor rod tensile strength (≥50 kN) via on-site pull-out tests.

• Mesh Integrity: Inspect for uniformity, joint strength, and galvanization continuity.

• Bolt Inspection: Ensure anti-corrosion treatments are undamaged.

Why These Guidelines Matter

    Active slope protection nets rely on anchor rod load-bearing capacity and corrosion-resistant materials to withstand decades of environmental stress. Adhering to these specifications minimizes slope failure risks, safeguards infrastructure, and extends service life.