In this field, TREVIICOS technological development is aimed at eliminating static bentonite muds commonly used for the support of the excavation in case of loose soils or soft cohesive soils.
The purpose of said elimination is to reduce the size of the site, and minimize the soil debris polluted by stabilizing slurries. The research led to the design of a new range of hydraulic drilling rigs through which it is possible to perform cased holes/shafts with diameters up to 60'' and to a max. depth of 131 ft.
Drill rigs are equipped with hydraulic clamps for the retrieval of the temporary casing once the concrete casting is completed