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Warsaw Bródno Tunnel: TBM Anna breaks through at Trocka station shaft

    Teodor Adamczyk
    By Teodor Adamczyk Replies (1)

     

    Tvp : Contractor Gulermak's TBM Anna breaks through at  Trocka station shaft after 650 meters of boring. It had started on January 22 from the Zacisze station. It was the shortest spring of total 2878m tunelling Also the the last of the four tunnels built on both sections at stage 3 + 2 of Bródno second metro line. 

    The other TBMs Krystyna and Elisabetta finished boring in the west at the end of 2020 after 2736m of tunnelling in the east. TBM Maria had bored 2908 meters of tunnel.

    Now the Warsaw Bródno Tunnel construction comes to a new stage as excavation completed.

    https://www.tvp.info/52452898/warszawa-zakonczylo-sie-drazenie-ostatniego-tunelu-metra-na-brodnie

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