Ground probing and treatments in rock TBM tunnel to overcome limiting conditions

摘要: The negative consequences on TBM performances caused by an insufficiently complete and detailed “geo” characterization of the rock masses that have to be bored are discussed in paper taking into account possible ground probing operations a tunnel treatment techniques carried out ahead face can applied make construction feasible when limiting or prohibitive conditions for TBM, must faced. A description some relevant inspiring projects tunnels where treatments were used also presented discussed.tic approach concept physical volume inhomogenous medium. numerical experiments representative structures shown good correspondence between results obtained with accurate equivalent models