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China: TBM breakthrough at Guangzhou Haizhu Bay Tunnel project
'The first super large diameter municipal Tunnel Boring Machine (TBM) tunnel in the Pearl River Basin-Guangzhou Haizhu Bay Tunnel project has successfully achieved double-line breakthrough.'
cover tunnel photo by: Matt Brown from London, England / CC BY
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https://www.constructionbriefing.com/news/tbm-breakthrough-at-guangzhou-haizhu-bay-tunnel-project/8038672.article
TBM breakthrough at Guangzhou Haizhu Bay Tunnel project
www.constructionbriefing.comTMB makes breakthrough at US$1.7 billion Chinese tunnel projectÂ