Soil Nailing is an example of a scope that does not occur on very many projects…we are
currently performing a major soil nailing scope out at Links Glenwood…take a look at the last 3
pics…we will be stabilizing a 22 foot excavation using soil nailing, which is an earth retention
technique using grouted tension-resisting steel nails that can be designed for permanent support
where walls need to be constructed from the top down. Typically, 3 to 6 feet of soil is excavated
from the top of the planned excavation. Near-horizontal holes are drilled into the exposed face at
typically 3 to 6 foot centers. Tension-resisting steel bars are inserted into the holes and grouted.
A drainage system is installed on the exposed face, followed by the application of reinforced
shotcrete facing. Bearing plates are then fixed to the heads of the soil nails. The soil at the base
of this first stage is then removed to a depth of about 3 to 6 feet. The installation process is
repeated until the design wall depth is reached. The finished soil nails produce a zone of
reinforced ground…at our Links Glenwood project, we are benching down 5 feet at time or so in
order to shore the site to begin construction on our below grade parking.
See photos on following pages