Latest from Tunnels and Tunnelling


LA TBM reaches second station
25 August, 2016 US – The TBM mining the rail tunnels for the Crenshaw/LAX line in Los Angeles broke through the station box for Martin Luther King, Jr. Station, the Los Angeles Country Metropolitan Transportation Authority (Metro) announced August 22.
  • Tunnelling ends on Eglinton
    Canada – The Ontario Ministry of Transportation announced August 17 tunnelling is now complete on the 10km of underground alignment for the Eglinton Crosstown LRT line.
  • Ottawa releases study on trunk tunnel feasibility
    Canada – A tunnel between the Macdonald-Cartier Bridge and Highway 417 for mixed traffic is technically possible, according to a recently completed feasibility study, the City of Ottawa said on August 17.
  • Trans-Pennine tunnel route options unveiled
    Great Britain – Five potential routes for the proposed Sheffield to Manchester tunnel have been unveiled. The Department for Transport calls it the most ambitious road scheme undertaken in the UK for five decades.


Big city move
18 August, 2016 TBMs are being built on an ever larger scale, pushing the limits our congested cities can accommate. Rhian Owen speaks with two freight forwarding companies about the obstacles they face when machines through large cities
  • Tunnel warfare
    This article is the second part of an insight into wartime tunneling by Myles O’Reilly. The first part can be found in the previous issue of Tunnels and Tunnelling
  • Test of Strength
    The redevelopment of Bond Street Tube station has recently trialled a new method of early strength monitoring of shotcrete. Rhian Owen highlights the risks of spraying concrete and how Strength Monitoring Using Thermal Imaging (SMUTI) could help eliminate the dangers
  • No dig live
    The UK-based trenchless technology show returns to the popular new Peterborough venue
  • All academic?
    Research from academics in UK institutions is improving understanding of tunnels and the effects of building them, making construction more cost effi cient and tunnels safer all over the world. Bernadette Ballantyne reports


Tunnel Buzz
17 August, 2016 So the referendum came and went, and the UK looks set to leave the European Union. Emotions are high and column inches long when it comes to the topic so I won’t add my refl ections on the politics or economics of the situation here.
  • Information overload
    Ome 40 miles from Silicon Valley, Peter Hirshberg delivered a captivating presentation on infrastructure, innovation and the Maker City to the largest gathering of the tunnelling industry in history, as one of WTC’s keynote speakers.
  • The lamps are going out
    In light of the recent vote by the British people demanding a split from the European Union, it is hard not to think about the history of the continent. Times are peaceful now, although it does not always seem that way, and looking back even a century reveals an unrecognisable political mess. This month marks an important historical landmark as far as peace in Europe goes; it is exactly 100 years since the start of the Battle of the Somme.
  • Learning through doing
    TODAY CELEBRATIONS are underway in Switzerland as the world’s longest railway tunnel opens. It is 1 June, and stakeholders and political figures are attending a day-long programme of events at the tunnel, prior to a festival for the people involved in the project which is due to take place tomorrow.
  • Looking forward
    This time last year I wrote about the impressive amount of tunnelling required to solve the unanswered questions of the scientific community. In recent years, the Large Hadron Collider (LHC) has been the highest profile of these projects.