Orichella e Timpagrande | Italy
Completed in: 1979
The telescopic Double Shield TBM was born. As part of the construction of the main tunnels of the project, SELI and Robbins developed the technology that allows to continuous excavation in deformable and complex ground/rock conditions. It became an innovation that set sector standards for decades.
Technical data
Excavation diameter
4.32 m
Tunnel length
4100 m
Geology
Granite
Type of support
Prefabricated segments
Client
ENEL – Italian Power Corporation
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