Tunnelling begins on Brisbane's Legacy Way

摘要

Tunnelling has started on Legacy Way in Brisbane, Queensland,Left: Early breakthrough on Tunnpl dp .Snvpmp following the recent launch of the first TBM, Annabel. Transcity, which is building the tunnel, announced the milestone last month.Annabel will excavate the westbound tunnel. Work was expected to begin in June 2012, but ran behind schedule due to changes in legislation for tunnelling, the company said. Transcity incurred an AUD 250,000 (USD 259,400) penalty each day it ran late.The second TBM, Joyce, which is being assembled on site, will start excavation of the eastbound tunnel later this year. It will take approximately 18 months for the TBMs to complete the journey from the western worksite at Toowong to the eastern worksite at Kelvin Grove.