Proper installation begins before the roll even touches the ground.
Site Preparation
The subgrade must be free of sharp rocks, debris, or protruding rebar that could puncture the fabric. A smooth, compacted surface is ideal.
Unrolling and Handling
Geotextile rolls are heavy. Use proper lifting equipment to avoid damaging the core or the fabric. Unroll the fabric carefully, avoiding twists or tangles.
Overlap and Seaming
This is the most critical step. To ensure continuity, geotextiles must overlap. The standard overlap is typically 300mm to 500mm, but this can vary based on soil conditions and hydraulic load.
Inspection
Before covering the fabric with soil or aggregate, conduct a thorough inspection. Look for tears, holes, or areas where the overlap is insufficient.
Conclusion
Installation is where theory meets practice. By following these best practices, you ensure that the engineering specifications translate into a long-lasting, functional structure.