Install New Boulder Retaining Wall
At 13:22 in
Building a Failed Boulder Wall
What happens here
Begin installing the new, larger boulders for the retaining wall. Start with the largest boulders at the base, ensuring they are deeply embedded into the prepared foundation with sufficient 'toe-in' for stability. Use the mini excavator with the hydraulic grapple for precise placement of each boulder. As each course is laid, angle the boulders slightly back into the slope (battering the wall) to provide additional resistance against soil pressure. Pack soil tightly behind each rock, making sure to avoid large voids. Continue laying courses, staggering the joints, and ensuring proper interlock between the boulders. Periodically, use the tamper to compact the soil behind the newly placed rocks. This step requires careful planning and execution to create a robust and durable retaining wall.
Goal: Construct a stable and durable boulder retaining wall.
Tools and materials
- Hydraulic Grapple CMP Attachments — Precise handling and placement of boulders
- Mini Excavator Daewoo 75V — Placing new boulders
- Shovel — Adjusting smaller rocks and backfilling soil
- Tamper/Compactor Wacker Neuson — Compacting soil behind the newly placed rocks
- Large Boulders N/A — Constructing the new retaining wall
- Soil/Backfill N/A — Filling gaps and behind the wall for compaction
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