Lift off! Giant HS2 tunnelling machine to be given a new lease of life
After completing the 3.5-mile mission to excavate the first section of the Bromford Tunnel, linking North Warwickshire and Birmingham, HS2’s giant tunnel boring machine (TBM) Mary Ann is being stripped down ready to take on her next tunnelling adventure. The first stage in the process to disassemble the 1,600-tonne machine saw the TBM’s 8.62-metre diameter […]