Prepare the Retaining Wall Base and Foundation
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High format wall going quick #retainingwall #excavator
What happens here
Although not explicitly shown in detail, the foundational step for constructing a durable stone retaining wall involves thorough site preparation. This typically includes excavating a trench to the required depth and width, ensuring the base is level and stable. A layer of geotextile fabric (often a black, permeable landscape fabric) is usually laid down to separate the native soil from the subsequent fill materials, preventing soil migration and improving drainage. Following this, a substantial base layer of gravel or crushed stone is placed and compacted. This compacted granular base provides excellent drainage, distributes the load evenly, and offers a stable, level surface for the first course of stone blocks. The video briefly shows a trench already prepared, lined with black fabric, and partially filled with a gravel base, indicating these preliminary steps have been completed.
Goal: Create a stable, level, and well-drained foundation for the stone retaining wall.
Tools and materials
- Geotextile Fabric — Separating soil layers and preventing migration, improving drainage
- Gravel or Crushed Stone — Creating a stable, well-drained base layer for the retaining wall
- Hand Tamper — Compacting the gravel base. For larger areas, a plate compactor is more efficient
- Level — Ensuring the base is perfectly level for the first course of stones
- Rake — Spreading gravel evenly in the trench
- Shovel — Manual excavation and leveling of the trench