Eglinton Crosstown West Extension (ECWE) Advance Tunnel project in Toronto
Eglinton Crosstown West Extension (ECWE) Advance Tunnel project in Toronto Metrolinx image from Aecon press release.CRCHI World's Largest Diameter Vertical TBM for shaft boring
World's Largest Diameter Vertical Tunnel Boring Machine for shaft boring Made in China by CRCHI. http://en.crchi.com/art/2023/6/16/art_40592_4586039.html
cover tunnel photo by: Matt Brown from London, England / CC BY
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