Latest from Tunnels and Tunnelling


Middle East to see longest-ever sea outfall
11 August, 2020 Joseph Gallagher Group, in partnership with Al Hassanain BSC, has started work on the Middle East’s longest-ever sea outfall to be undertaken by pipejacking. It is seen as one of the region’s most complex water schemes.
  • Teams shortlisted for Toronto transit projects
    Six teams have been shortlisted by Infrastructure Ontario (IO) and Metrolinx for advance tunnelling work on the Scarborough Subway Extension and the Eglinton Crosstown West Extension in Toronto, Canada.
  • Ferrovial named 'most sustainable company'
    Ferrovial, the Spain-based infrastructure services provider, has been named the ‘most sustainable company in the infrastructure sector of 2020’ by World Finance Magazine.
  • 500 jobs to go at Aecom
    In a sweeping restructuring of its business, infrastructure services provider Aecom is to make up to 500 employees redundant in the UK and Ireland. All areas of the business, including engineer roles are likely to be affected, with the process starting in October and continuing through to January 2021.


Construction claims and dispute resolution
17 July, 2020 Every time the conditions of a construction project change – whether new ideas develop for implementation, or some unanticipated circumstances occur – the project’s cost and schedule will be affected. These changes and their cause could be interpreted by different stakeholders in various ways. So, there could be conflicts, disagreements and disputes on what portion of the cost and project schedule the contractor needs to be compensated for.
  • Trans Euro Express
    The Magistrale is a 1,500km high-speed rail project that will link France, Germany, Austria, Slovakia and Hungary. Julian Champkin reports on the tunnelling through Germany’s Swabian Alps.
  • Testing time for tunnel sprinklers
    Haukur Ingason, Ying Zhen Li and Magnus Arvidson of Sweden-based RISE Research Institute, and Ulf Lundström, Swedish Transport Administration discuss new tests on the use of automatic sprinklers in road tunnels.
  • Beneath Oslo and the deep fjords
    Dr Benoît Jones reports on the British Tunnelling Society’s evening meeting which discussed the technical challenges posed by future tunnels in Norway
  • A good dose of fibre
    Steel fibre-reinforced concrete and its historic use in metro tunnels was the subject of discussion at a seminar hosted by steel-fibre maker Bekaert. Paola De Pascali reports