Soil Nailing
Key words: soil nailing, construction
of wall, rail road
Soil nailing
is a construction technique in which steel bars are inserted in the holes
driven on ground slopes. The purpose of
nailing is to stabilize natural slopes, excavated slopes or retaining
walls.
One of the first applications of soil nailing
was in 1972 for a railroad widening project near Versailles, France, where an
18 m (59 ft) high cut-slope in sand was stabilized using soil nails (Rabejac
and Toudic 1974). Clouterre’s research program, (Schlosser 1983; Clouterre
1993) is another step in this direction..
In Germany, the first use of a soil nailing was
for construction of a wall in the year 1975 (Stocker et al. 1979). The first major
research program onn soil nail walls was undertaken in Germany from 1975 through
1981 by the University of Karlsruhe and the construction company Bauer.
(Gassler and Gudehus 1981; Schlosser and Unterreiner 1991).
In US, the first FHWA document on soil
nailing was issued through FHWA’s Office of Research and Development (Elias and
Juran 1991). Updated version of above FHWA soil nailing manual was made public
in 2003 (Carlos et al. 2003).
In India use of soil nailing technology is
gradually increasing and guidelines have been made by IRC( Indian Road
Congress) with the help of Indian Institute of Science, Bangalore.
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