Skip to main content
Stesso

Lay Retaining Wall Blocks and Geo-Grid

12:58
15:14
90.5K views

At 12:58 in

Creating a yard off a SKETCHY slope

Watch on YouTube

What happens here

Carefully lay the first course of segmental retaining wall blocks into the compacted gravel base. Ensure each block is perfectly level and aligned. Once the first course is complete, unroll and position the geo-grid material horizontally behind the blocks, extending it into the backfill area. The geo-grid has a specific 'shear strength' direction; ensure it is laid correctly (usually in the direction of the intended force against the wall) for proper function. Incorrect placement renders the geo-grid ineffective. After laying the geo-grid, add and compact more gravel behind the blocks and over the geo-grid. The geo-grid should extend 9 to 11 feet behind the wall face. Continue to build up the wall layers, ensuring geo-grid is placed every 2 feet of vertical height. This process involves adding blocks, laying geo-grid, backfilling with gravel, and compacting each layer. This multi-layered approach distributes the weight over a larger area, preventing deflection.

Goal: Construct multiple stable courses of the retaining wall with integrated geo-grid

Tools and materials

  • Geo-grid N/A — Reinforcing the soil behind the wall to prevent deflection
  • Level N/A — Ensuring blocks are perfectly level
  • Pins/Fasteners N/A — Securing subsequent block courses to the one below
  • Plate Compactor Wacker Neuson — Compacting backfill over the geo-grid
  • Rubber Mallet N/A — Adjusting and leveling blocks
  • Segmental Retaining Wall Blocks N/A — Building the main structure of the retaining wall
  • Shovel N/A — Spreading gravel and backfilling
  • Skid Steer Loader — Transporting and adding gravel backfill
  • String Line N/A — Maintaining straight alignment of the wall

What they say

Hide

way so as you watch this wall grow you're going to see us continuing to add layers but we're adding those layers in strategically geogrid gets placed every 2 ft of vertical height so in this image right here there's actually three layers of geogrid going in and the wall is approximately 5 ft tall so the bottom course of grid is all the way at the bottom and then the remaining two courses of grid make up for that difference but the wall is far from being done

Auto-generated from the video audio.