New construction of the power transmission tunnel (ELT) West in the University Hospital of Basel

Steel arches and lag­ging plates are instal­led for the con­ven­tio­nal exca­va­tion method cal­led «Marcia­vanti». The plates are clamped pro­jec­ting back­wards between the first two steel arches. They are pushed for­ward while the loose ground in front of the first steel arch is exca­va­ted. The exca­va­tion mate­rial is lead away on a con­veyor belt.

The new power trans­mis­sion tun­nel (ELT) will be ope­ra­tio­nal after the inte­rior lining of the gal­lery.

Marti Gruppe
Seedorffeldstrasse 21
3302 Moosseedorf
+41 31 388 75 75