Earlier this month, Rob Carr Pty Ltd (RCPL) successfully launched the Metro Tunnel’s first tunnel boring machine (TBM) as the company commenced excavation of a new tunnel 20m under Melbourne’s busy St Kilda Road.
RCPL is undertaking the realignment of the South Yarra Sewer at the Domain Interchange as a sub-contractor to John Holland Group, who are delivering the Metro Tunnel early works.
Using a five-metre long Iseki Unclemole TBM, RCPL will excavate a 190m tunnel from Albert Road to Domain Road, lining the tunnel with glass-reinforced plastic to create a new section of sewer.
A 16m access shaft has been built at Albert Road to launch the TBM. RCPL will operate the TBM remotely from the Albert Road site office.
This new section of sewerage pipeline will replace a 100-year-old brick pipeline so that construction of a new station at Domain can start next year. Once the pipeline is constructed, it will have capacity to manage flow volume equivalent to two Olympic-size swimming pools every hour.