شبكة جغرافية ثنائية المحور — الشركة المصنعة، المواصفات & حلول تقوية الأرض

تحضير السطح:
Ensure the foundation surface is level, well-compacted, and free from sharp debris or standing water that could damage the geogrid. Verify the design elevation and alignment before installation to maintain surface uniformity and contact between soil and geogrid. A stable, firm base helps achieve uniform load transfer across both directions.

Unrolling & Orientation:
Biaxial geogrids are delivered in rolls and can be unrolled manually or by light machinery along the prepared surface.
Unlike uniaxial types, biaxial geogrids can be laid in any direction, as they have equal tensile strength in both longitudinal and transverse axes. Ensure the sheets are straight, flat, and free from folds or tension waves during placement.

Overlap Width:
For effective interlocking and load transfer, overlap adjacent sheets by 200–400 mm on both sides.
In areas with weak subgrades or heavy traffic loads, an overlap of up to 500 mm is recommended.
Secure overlaps with U-shaped pins, plastic ties, or staples at intervals of 1.0–1.5 m to prevent shifting during filling and compaction.

Backfilling & الضغط:
Spread the fill material gently over the geogrid from one end to the other, avoiding direct dumping from trucks to prevent displacement or damage.
Compact the fill in thin layers of 150–200 mm, using lightweight rollers or plate compactors. Proper compaction ensures full interlock between the aggregate and geogrid ribs, improving reinforcement performance and reducing settlement.

Anchorage at Edges:
At the edges or terminations, anchor the geogrid securely using pegs, sandbags, or mechanical fasteners before placing the next layer of fill. Ensure all corners and boundaries maintain firm contact with the subgrade to avoid curling or movement.