Sand-filled gabions are wire mesh structures used for sand fixation, erosion control, and ecological restoration. These units are made from double-twisted hexagonal mesh manufactured from galvanized or PVC-coated low-carbon steel wire. Unlike traditional stone gabions, the baskets are filled with sand, planting soil, or sand-gravel mixtures to stabilize loose surfaces and support vegetation growth. Typical sizes include 1×1×1 m, 2×1×1 m, and 3×1×1 m gabion boxes, and 3×2×0.23 m and 6×2×0.30 m gabion mattresses. Product categories include sand-filled gabion boxes, sand-filled gabion mattresses, and sand barrier gabions. These systems are widely used for windbreak barriers, dune stabilization, slope protection, riverbank reinforcement, and vegetation restoration in desert, plateau, and sandy regions. The permeable mesh structure allows water infiltration while retaining sand and supporting plant development.
| Feature | Traditional Gabions | Sand-Filled Gabions |
|---|---|---|
| Main Filling Material | Filled with rocks or pebbles, particle size larger than mesh openings | Filled with sand, planting soil, or sand-gravel mixtures |
| Core Function | Erosion control, soil retention, flood protection | Sand fixation, vegetation growth, ecological restoration |
| Structural Form | Wire mesh baskets filled with large stones | Wire mesh baskets filled with sand or soil |
| Permeability | Very high permeability through gaps between stones | Moderate permeability depending on sand density |
| Stability Mechanism | Stone weight provides structural stability | Mesh confinement stabilizes sand and soil |
| Vegetation Support | Limited vegetation growth between stones | Supports plant seeds and root development |
| Typical Applications | Riverbank protection, retaining walls, seawalls | Desert control, ecological slopes, sand barriers |
| Installation Environment | Areas with abundant stone materials | Areas with abundant sand but limited rock |
| Construction Material Source | Requires transported rock or quarry stone | Can use local sand or soil materials |
| Ecological Function | Structural protection | Ecological restoration and sand stabilization |