Latest from Tunnels and Tunnelling


Sky-high salaries agreed for West Gate tunnellers
15 June, 2021 Following the successful conclusion of a pay deal between the contractor and a local building union, tunnellers working on the US$5.2bn West Gate Tunnel project in Melbourne, Australia, look set to earn more than US$240,000 a year.
  • Bids invited for Phase 4 section of Delhi Metro
    Delhi Metro Rail Corp (DMRC) is inviting international bids for the design and construction of twin TBM-bored tunnels, cut and cover, plus underground ramp and other tunnel-related works for package DC-05 of Delhi Metro’s Phase 4.
  • Twin-tunnel win for Webuild consortium
    An Italian consortium comprising Webuild (70%) and Pizzarotti (30%) has been announced best bidder for the US$445m design-build Orsara-Bovino contract which includes significant tunnelling.
  • Tunnelling begins on Auckland Central Interceptor
    A Herrenknecht microtunnel boring machine (MTBM) has installed the first 3m-long section of concrete pipe on a new branch sewer that kicks-off the excavation of the 14.7km Watercare Central Interceptor Tunnel (CIT) in Auckland, New Zealand.


New generation FRC segments
10 May, 2021 Benoit de Rivaz, Technical Manager, Bekaert, France explains how the inclusion of steel fibres in precast concrete segments can bring environmental, economic and durability benefits
  • Handling the pressure
    Christian Wieczorek, Managing Director of AST Bochum and engineer/technical writer Roland Herr discuss ways of connecting hoses safely to modern compressors and look at new solutions
  • Transferable asset
    A technology developed for land-based tunnelling has found a new and expanding niche in bringing off-shore energy nearer to its consumers. Julian Champkin reports
    Crossrail’s approach to health and safety is as much about psychology and culture as it is prescription. Keren Fallwell reports