Salini Impregilo used #Palmieri's riser jacking in Argentina project.
https://tunnelingonline.com/salini-impregilo-nears-end-of-argentina-tunnelling-excavation-works/
Salini Impregilo is nearing the completion of the mechanized excavation of a nearly 12 km long outfall tunnel under the River Plate in Argentina.
cover tunnel photo by: Matt Brown from London, England / CC BY
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