Latest from Tunnels and Tunnelling


Stakeholders reject working conditions as cause of Bond Street deaths
10 October, 2019 Great Britain – Two workers on Crossrail’s Bond Street project passed away in the same week. Various media have reported that working conditions relating to air quality or stress were to blame, but this has been rejected by stakeholders. Reports of further investigation, or further details of the illness were not forthcoming from the contractor or client.
  • The Victorian Tunnelling Training Centre is under construction
    Australia - The construction of the Victorian Tunnelling Training Centre (VTC) is set to start in Melbourne. The VTC will be located at Holmesglen Institute’s Drummond Street campus in Chadstone and will take the first students during Semester 1 over the next year.
  • Incimmet completes tough ventilation shaft
    Colombia – Peruvian mining contractor Incimmet has excavated a 30m-deep, 4.1m-diameter ventilation shaft for the Buriticá mine development project. Ground conditions at the Buriticá complex largely consist of andesite-porphyry, diorites and monzodiorites with intrusive hydrothermal gaps within the volcanic and sedimentary sequences.


Navigating live tunnel connections
30 September, 2019 Connecting the Des Plaines Tunnel System to the McCook Reservoir is one of the latest – and more challenging – components of TARP. Report by Cary Hirner and Faruk Oksuz of Black & Veatch, and Carmen Scalise of the Metropolitan Water Reclamation District of Greater Chicago
  • Properties of Fibres
    Benoit De Rivaz, a fibre expert working with Bekaert Maccaferri, a supplier of steel and polymer fibre discusses the various material characteristics of steel and polymer fibres, with special regards to long-term performance
  • Tunnelling costs and production rates benchmarked
    Bill Grose of Bill Grose Consulting and Aleister Hellier of the Infrastructure Projects Authority at Her Majesty’s Treasury in the UK present this paper on efforts to benchmark UK tunnelling costs and production rates in 2018
  • Code red
    Following the World Tunnel Congress in Naples, Paola de Pascali looks at Italy’s political and economic crisis, which is shared by the construction sector, itself struggling to stay afloat as large amounts of money are being lost
  • Life with the Seri Nala
    With excavation complete, engineers from the Afcons side of the Strabag- Afcons joint venture recall the most challenging moments from the southern drive of the Rohtang Tunnel. Alex Conacher reports


A 40-year strategy
27 September, 2019 There are many in this industry who will say “nothing changes” in tunnelling. Obvious technological advancements, mergers and retirements aside, many times they are right.
  • HS2 under review
    It is understood that HS2 is at the starting blocks and ready to go. The visible evidence of this can be seen across the county, with major demolition and enabling works around Euston and along the route. The long term effects on spreading wealth northwards can also be seen with development being undertaken in Birmingham and Manchester.
  • Planning for the twenties
    In this issue of Tunnels and Tunnelling International Paola De Pascali reports from the World Tunnel Congress, which was held in Naples in May and saw a number of publications from working groups and committees. The ITA Committee for Technology (ITAtech was particularly prolific.
  • Wisdom of the Faroes
    As I write, the Tunnels and Tunnelling team is preparing to leave for the Rapid Excavation and Tunnelling Conference in the USA, the world’s richest, and one of its largest countries. It always seems to have a megaproject underway or in the pipeline.
  • Preserving old and new
    Joining WTC 2019 in Naples was a full immersion into the Italian art of tunnelling. The plan was to show how engineering and innovation meet archaeology, architecture and art. The beauty of Naples is not only above ground, but it is a cradle of underground works, which unveils a network of Greek and Roman tunnels and underground structures dating to the fourth century BC.