Establish Elevations and Excavate Trenches
3:33
15:14
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At 3:33 in
Creating a yard off a SKETCHY slope
What happens here
After the initial boulder wall is complete, use a laser level and string line to establish the precise elevations and alignment for the main retaining wall. This involves setting up the laser receiver on a grade rod and using it to mark the desired height along the wall's path. Next, carefully excavate a wide, flat trench that will serve as the primary footing for the geo-grid. Additionally, dig a narrower, deeper trench for the front face of the retaining wall blocks. Ensure all organic material is removed from these trenches to prevent future settlement.
Goal: Create precise footings for the geo-grid and retaining wall blocks
Tools and materials
- Excavator Bucket — Digging trenches and moving soil
- Grade Rod with Receiver — Measuring height relative to the laser level
- Impact Driver Milwaukee — Removing bolts to change excavator buckets
- Laser Level — Establishing precise elevations for the retaining wall
- Mini Excavator — Digging the wide and narrow trenches
- String Line — Marking the exact line and height of the wall
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