After defining the tunnel cross-section properties, users can from now on (since PLAXIS 3D 2016) proceed with defining the tunnel excavation sequence from within the Tunnel Designer. This includes deactivating side-wall drifts, benches or inverts, and (de)activating temporary or permanent support like rockbolts, jack forces, grout pressure and liner segments.

The excavation sequence needs to be defined only once and will be used later on in Staged Construction mode to generate the full excavation along the tunnel's trajectory.