Aufgrund von Revisionsarbeiten im Zulaufstollen musste dessen Zugang vergrössert werden.
Um diesen anschliessend gegen den Zulaufstollen hin wieder verschliessen zu können, wurde eine Panzertüre vorgesehen, da der vergrösserte Zugang nicht wieder zubetoniert werden konnte.
Hydro Exploitation, unternehmen, leistungen, kunden, stellen, publikation, sitten, wallis
www.hydro-exploitation.chAs a result of inspection work in the headrace tunnel, the entrance had to be enlarged.
To allow the headrace tunnel subsequently to be closed again, an armoured door had to be provided because the enlarged entrance was not to be concreted over again.
Hydro Exploitation, company, services, clients, jobs, publications, sion, valais
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