Società Italiana Gallerie (Italian Tunnelling Society), Piazzale R. Morandi, 2 20121 MILANO. Tel: +39 02 77790417 – Fax +39 02 77790419 – web site: - open association (approximately 650 members), that promotes, coordinates and spreads the results of studies and researches in the field of underground works. It publishes the “Gallerie e grandi opere sotterranee/Tunnels and large underground works” magazine (in Italian and English).