Latest from Tunnels and Tunnelling


Severomuksky Tunnel TBMs ordered
06 December, 2019 Russia – Two 10.37m-diameter Robbins Crossover (XRE) machines have been chosen to bore the second Severomuysky Tunnel. The tunnel is a 15.5km-long drive that will form part of a new rail line that will supplement the existing Baikal-Amur Mainline (BAM).
  • Two Kowloon Peninsula road contracts awarded
    Hong Kong – Contracts for the Central Kowloon Route (CKR) and Trunk Road T2 have been awarded to Bouygues Construction. These projects form part of a new trunk road known as Route 6. When completed, Route 6 will provide an east-west link in the region with three lanes in both directions.
  • Felix Amberg awarded Stuva prize
    Switzerland – Amberg president Felix Amberg was awarded the Stuva prize last month. The award, presented at the German research group’s biennial conference, was given for a lifetime of achievement in the industry.
  • TfL finalises Silvertown contract
    Great Britain – The contract for the Silvertown Tunnel project has been finalised. The contract had been delayed by legal challenges, but the Riverlinx consortium, comprising Ferrovial’s Cintra, Bam PPP PGGM, Macquarie Capital, Aberdeen Standard Investments and SK E+C has taken the work.


Fire performance of Tunnel linings
05 December, 2019 Octavian Lalu and Tom Lennon of BRE Global review a number of experimental programmes undertaken at BRE on the performance in fire of tunnel linings, with a particular focus on concrete mix design to alleviate the effects of spalling
  • Fire safety
    This article is a reprint of the paper first published in the Proceedings of the 8th International Symposium on Tunnel Safety and Security, Borås, Sweden, 14-16 March, 2018, and presented as a keynote address there. The article has been abridged from the original paper
  • Keeping Pace
    Frank Grundholm, vice president for global HVACR sales at ABB Motion, explains how variable frequency drives (VFDs) are used together with electric motors for the effective control of rail and road tunnel ventilation fans
  • Forum Tunnel incident
    A tunnel fire is never a positive event, but when there is no loss of life there is good reason to be thankful. Fläkt Woods issued this account of a recent incident
  • Keeping up the Pressure
    A cut-and-cover tunnel in Italy will make use of high pressure compressed air in what engineers are claiming is a first for the Mediterranean country. Paola De Pascali spoke with Andrea Pigorini, the head of infrastructure engineering at Italferr, and a spokesperson for Salini Impregilo, to find out more