Initial Excavation and Base Layering
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What happens here
The video opens with a time-lapse showing the initial stages of constructing a retaining wall. This includes excavation of the hillside, laying the first course of segmental retaining wall blocks, adding backfill material (likely gravel), and placing layers of geogrid. Heavy machinery like a Kubota SVL 75-2 compact track loader and a Daewoo 75V excavator are utilized for earthmoving. Manual labor is also heavily involved in setting blocks and raking material.
Goal: Establish the foundational layers of the retaining wall and prepare the site.
Tools and materials
- Daewoo 75V Excavator Daewoo — Excavating the hillside and moving large amounts of earth
- Geogrid — Reinforcing the soil behind the wall to provide structural stability and resist lateral pressures
- Rakes — Spreading and leveling backfill material
- Segmental Retaining Wall Blocks — Constructing the face of the retaining wall
- Shovels — Manual excavation, moving gravel, and fine-tuning placement
- Gravel — Backfilling behind the wall for drainage and stability