DISPOSITIVO TUBOLARE IN MATERIALE STABILE NON INQUINANTE, PREFERIBILMENTE VETRORESINA, DA UTILIZZARE NELLE TECNICHE DI CONSOLIDAMENTO DEL FRONTE DI SCAVO IN GALLERIA.

摘要

The invention concerns a tubular device made of fiberglass-reinforced plastic provided with internal longitudinal channels used both for inserting the hardenable fluid (cement mortar, grout or other) under pressure and for the exit of the same at the end of the reinforcement hole filling operation (8).