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Gabion Retaining Walls: Design Guide & Best Practices (2025)
Complete engineering guide to gabion retaining wall design and construction.
Gabion Retaining Walls: Design Guide & Best Practices
Introduction
Gabion retaining walls have become increasingly popular in civil engineering and landscaping projects worldwide. Their flexibility, permeability, and environmental compatibility make them an excellent choice for various applications.
What is a Gabion Retaining Wall?
A gabion retaining wall consists of wire mesh baskets filled with stone or rock, stacked to form a gravity wall structure. The word "gabion" comes from the Italian "gabbione", meaning "big cage."
Key Advantages
- Flexibility: Unlike rigid concrete walls, gabion walls can adapt to ground movement without cracking
- Permeability: Water can flow through, eliminating hydrostatic pressure buildup
- Environmental Integration: Natural stone appearance blends with landscapes
- Cost-Effective: 30-50% cheaper than reinforced concrete walls
- Durability: PVC-coated or Galfan wire mesh lasts 50+ years
Design Parameters
- Wall height: 1-15 meters possible
- Face angle: Typically 6° batter (slope backward)
- Mesh type: Hexagonal double-twist, 80mm×100mm opening
- Wire diameter: 2.7mm PVC-coated / 3.4mm selvedge
- Stone fill: 100-200mm graded, hard, durable stone
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