DescriptionGeological uncertainties and the ensuing risks in the construction of long tunnels at great depth has been described in the ITA Report no. 4 - Long tunnels at great depth (ITA) : “…. the deeper the tunnel, the larger the uncertainties; the higher the probability of encountering adverse or unforeseen conditions for tunnelling, the greater the effort and the cost for site investigations to reduce the uncertainties”. Among the identified hazard sources, faults play a dominant role due to their squeezing potential, swelling and creep, possible inflow of water (and/or gases) and debris, or eventual displacements along active shear zones. Tunnelling through fault zones may therefore lead to critical events for both the construction process and the safety of the personnel. In order to minimise the risk, to be prepared in the case of an event or to overcome fault zones efficiently, a Fault Zone Management Plan has been developed. This Fault Zone Management Plan provides a systematic process developed for the cross-border BBT (Brenner Base Tunnel) railway tunnel at great depth between Italy and Austria.
|Period||11 Dec 2019|
|Event title||Underground Tunnelling for Substation Construction|
|Degree of Recognition||National|
Activity: Participation in or organisation of › Workshop, seminar or course (Participation in/Organisation of)