SOIL IMPROVEMENT SYSTEM USING RESIN INJECTIONS IN SUBMERGED TUNNELS

The world of construction, and especially the area underground works, is immersed in a constant state innovation development. In this area, numerous innovative variables are handled, both improvements to material properties construction technology new user requirements demands. Throughout history, civil engineering has had offer support for needs comfort, aesthetics, sustainability worker safety, among others. Of these, latter most important it achieved increasing relevance recent years. This research intended comprehensive solution tunnelling process, beneath phreatic surfaces geological conditions with low cohesive strength subject high pressures. intention treat soil via injections applied from inside machine review replace worn tooling on its cutting wheel. proposed consists installation high-frequency perforation unit hydroshield tunneller. device analysed determine whether offers requirements. results obtained confirm 15% improvement compared existing solutions, greater efficiency execution speed while proving be safer technique terms preventing labour-related risks offering respect environment. Keywords: Subsea tunnel, Ground treatment, Water table, Injections, TBM, Hydroshields.