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 4:
Secure Geo-grid.
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.
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Step 2:
Cut Geo-grid.
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..
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Step 5:
Install next course of Keystone units.
Check for level with each new course.
|
Step
3: Install Geo-grid.
Hook geo-grid over the fiberglass
pins to ensure a positive mechanical connection between the unit and
geo-grid |
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. |