Jet grouting (for ground improvement)
Trevi S.p.A.

By means of the TREVIJET system it is possible to obtain columns with the following diameters:

- 0,35 – 1,00 m by means of TREVIJET T1

- 0,60 – 1,00 m by means of TREVIJET T1/S

- 1,40 – 3,00 m by means of TREVIJET T2

Said dimensions and the mechanical features of the treated soil highly depend on the combination of several elements such as the nature of the soil, the applied pressure, the monitor’s rotation and extraction speed and the composition of the grouting mixture.

With the aim of optimising all these variables and obtaining the best technical productive result, Trevi developed and tested in several sites a whole set of drilling and grouting rigs characterised by a highly advanced technological content as well as advanced checking systems. In this way, it is possible to work with large-size equipment that are assembled on cranes for vertical treatments at remarkable depths, or small size drill rigs suitable for working in basements and in reduced areas in case of consolidations of pre-existing buildings and monuments.

Last but not least in importance, we must mention the application of the TREVIJET system in case of sub-horizontal treatments for preventive consolidation works of tunnels, before the excavation, in loose and un-cohesive soils.