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Soil Nailing is an
insitu reinforcing of the soil while it is excavated from the top down. Any
array of soil nails which are passive inclusions are installed in a grid that
functions to create a stable mass of soil. This mass of reinforced soil
functions to retain the less stable material behind it. In the right soil
conditions, soil nailing is a rapid and economical means of constructing
excavations support systems and retaining walls. In many applications soil
nailing can be the least disruptive way to construct a retaining wall. Soil
Nailing requires an unusual amount of hand work, craftsmanship and geotechnical
knowledge to construct. The typical construction sequence begins with the
excavation of a shallow cut. Then shotcrete is applied to the face of the cut
and soil nails are drilled and grouted. This sequence is then repeated until
subgrade is reached.
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