Examveda

Which hazard was encountered during excavation of the Brenner Base Tunnel?

A. CO? emissions

B. Water inrush from karst

C. Ice pockets

D. Swelling rock

Answer: Option D

Solution (By Examveda Team)

Swelling rock such as anhydrite was encountered. Upon contact with water, it expanded, exerting pressure on the tunnel lining. Countermeasures included reinforced linings and waterproofing.

Join The Discussion

Related Questions on Case Studies and Applied Geological Engineering Projects