Step 1: Excavate reinforced soil area.
Remove existing soils in the reinforced soil area to the maximum embedment length of the geo-grid design. Provide a generally level soil condition behind the wall units for the placement of each geo-grid layer.
Step 2: Cut Geogrid.
Cut sections from geo-grid roll to the specified length (embedment depth). Geo-grid roll direction is from the wall toward the embankment (check manufacturer's criteria). In most cases correct orientation is to roll the geo-grid perpendicular to the wall face.
Step 3: Install Geogrid.
Hook geo-grid over the fiberglass pins to ensure a positive mechanical connection between the unit and geo-grid
Step 4: Secure Geogrid.
Pull the pinned geo-grid taut to eliminate loose folds. Stake or secure back edge of geo-grid before and during backfill and compaction. Remove stakes, if desired, once backfill is placed. Place additional sections of geo-grid, abutting each other, for continuous coverage at each layer.
Step 5: Install next course of Keystone units.
Check for level with each new course.
Step 6: Place compacted backfill over geo-grid in 8” lifts.
Provide a minimum of six inches reinforced fill coverage prior to driving equipment over the geo-grid with wheeled or tracked equipment. Avoid driving or turning equipment directly on geo-grid to avoid excessive damage.
Central Supply is a proud distributor of StrataGrid geogrids. SrataGrid was designed to be a reinforcement material for retaining walls of all types. Stratagrid geogrid is mechanically and chemically durable, in the installation phase, and in various types of enviroments.
Stratagrid was designed to be a reinforcement material that is easy to install in the field. It can be cut by hand for precise shaping. The geometric stability also makes StrataGrid particularly appropriate for the use with segmental retaining wall units.