Special cutterhead for the tunnel boring machine (TBM) by Herrenknecht bored full-face granite with hardness over 120MPa with an S-curve alignment through a fixed coordinate.
cover tunnel photo by: Matt Brown from London, England / CC BY
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https://themalaysianreserve.com/2021/04/14/mmc-plsb-sets-another-achievement-in-malaysia-book-of-records/
MMC PLSB sets another achievement in Malaysia Book of Records
themalaysianreserve.comMMC Pembetungan Langat Sdn Bhd (MMC PLSB) recorded another achievement in the Malaysia Book of Records for the “Breakthrough of the Longest Microtunneling Diameter Nominal 1800 Multi Curvature Sewerage Pipeline in Full Rock” in Cheras Perdana,...