Rocksoil S.p.A. has designed more than 700 kilometres of tunnel in all types of ground and stress-strain conditions.

Key

AC = cellular arch
A.G.O. = Artificial Ground Overburden
BU = radial roof bolting
CG = freezing
CPRF = prefabricated segments
DR = drainage
EPB = EPB shield
HYDROS = Hydroshield shield
IN = traditonal injections
J.G.O. = horizontal jet-grouting
PT = mechanical precutting
SCU = shield
VA = active arch
VTR = Ground improvement of the advance core using glass-fibre structural elements

P = Preliminary design
F = Final design
D = Detail design
A = Advice