myGeobrugg
System length
18 m
Year of installation
2008
Initial situation
The old bridge over the Reno di Lei was hit by a rockfall. As part of the restoration work, a suitable measure was sought for protecting the old bridge – and the abutment of the new bridge situated above it – from falling rock. For reasons of aesthetics and to preserve the surrounding countryside, it was not possible to construct a rockfall protection roof above the portal.
Description
The solution presented by Geobrugg envisioned a RXI-200 rockfall barrier (2000 kJ) acting as a deflector, with the system being aligned almost vertically above the abutment. In contrast to a conventional rockfall barrier, three central suspension cables were installed in addition to the upper and lower suspension cables in order to reduce net deflection and allow rocks to be diverted.
Customer
Graubünden Civil Engineering Authority
Contractor
Crestageo AG, Chur
Protected object
Road, Other
Engineering
DIAG Davoser Ingenieure AG, Davos / Switzerland
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