Exploitation of geothermal energy using tunnel lining technology in a mountain environment. A feasibility study for the Brenner Base tunnel - BBT

摘要

Mountain tunnels can be a direct and indirect source of geothermal energy thanks to the use of drainage water or the so-called thermal tunnel lining, respectively. The amount of available energy at the tunnel entrance depends on the hydrogeological and thermal properties of the rock-mass and the geometrical and technical characteristics of the tunnel (geometry, length, lining materials, excavation methods). Typically, the analysis of all these factors argues in favour of one solution rather than another.