Today on Tunnels & Tunnelling International


Forrestfield-Airport Link procurement begins
26 November, 2014 AUSTRALIA - An industry briefing was held on 14 November as the start of procurement activities for the Forrestfield-Airport Link. The project, to be located in Perth, Australia will create a rail link branching out to the airport and the Forrestfield suburb in the city’s southeast.
  • Tully to be awarded USD 282.5M repairs contract
    USA - MTA Bridges and Tunnels announced on November 17 it plans to award a four-year, USD 282.5M contract to Tully Construction Company for repairs and restoration projects related to damages at the Hugh L. Carey Tunnel in New York caused by Superstorm Sandy.
  • Bouygues signs contract for Baku metro
    Azerbaijan - Bouygues Travaux Publics, a subsidiary of Bouygues Construction, has signed a design and build contract worth around EUR 147M (USD 184.3M) for the separation of the red and green lines of the 28 May station, part of the metro system in Baku, the capital of Azerbaijan.
  • Breakthrough on Ottawa LRT
    CANADA - The roadheader mining in the central shaft from the east segment to the west segment punched through on November 7, according to the City of Ottawa. At the time of the breakthrough, 48 per cent of Lyon Station cavern excavation has completed.


Wrapping Farringdon
20 November, 2014 Angelos Gakis was a runner-up for this year’s Harding Prize. This article is based on his paper, ‘Design of a SCL wraparound tunnel utilising a 3 D geological model at Crossrail’s Farringdon Station’.
  • Innovative Infrastructure Inspection Technologies
    With aging infrastructure becoming a common problem throughout the United States, time efficient and innovative inspection technologies are needed in order to facilitate infrastructure inspections that can be done rapidly and in-depth with minimal impact to infrastructure operation as cost-effective as possible.
  • Warsaw metro’s improvements
    Poland’s capital Warsaw has two million inhabitants, but only one underground metro line. A second line, with 28 stations over 30km, is under construction. The central section of this line is being built under a turnkey contract awarded to the international agp Consortium, made up of contractors Astaldi of Italy, Gulermak of turkey and PBDIM of Poland. Italy’s rocksoil is providing technical assistance to the project, and here describes some of the challenges involved.
  • Gdansk Double
    Recent slurry TBM bores in Gdansk were the key challenge to build a new road link. Report by Patrick Reynolds.
  • Modelling in LA
    Angel del Amo and Angel Silvestre of Intecsa-Inarsa SA, and Vanessa Prieto an Pedro Velasco of of Itasca Consultores, explore subsidence prediction for the regional connector transit corridor tunnels in Los Angeles.


Remember the fifth of November
18 November, 2014 In a couple of months it will be the 410th anniversary of the first attempt at the Gunpowder Treason in the UK. By the time this issue reaches you, Guy Fawkes Night (‘Bonfire Night’ in the UK) itself will have passed. But less well known is an attempt, 11 months earlier, to blow up the British Parliament with a tunnelled cache of explosives, rather than the less exciting option of a cellar rented beneath the seat of government itself.
  • Young members matter
    In the last 15 months there has been a flourish of countries establishing Young Member Groups in tunnelling organisations, and that includes both Canada and the US. In May the ITA General Assembly in Brazil approved the creation of an ITA Young Members Group. Its mission is to “bridge the generation gap and provide a technical network platform for young professionals in the tunnelling and underground space industry."
  • Oh Canada
    With the autumn conference season upon us the tunnelling community is next month heading to Vancouver to take part in the Tunnelling Association of Canada’s biennial conference.
  • It's later than you think
    AS the tunnelling community plans to descend upon London for the British Tunnelling Society conference next month, Mayor Boris Johnson has set out a GBP 1.3 trillion (USD 2.2 trillion) development plan that lays down a treasure trove of underground opportunities for the city. The plan outlines the infrastructure developments needed to keep pace with London's growth.
  • Better together
    A sullen Lionel Messi stood with stooped shoulders next to the award winning German goalkeeper Manuel Neuer in the immediate aftermath of the Fifa World Cup Final.


NASTT’s 2015 No-Dig Show
15 Mar 2015 - 19 Mar 2015 NASTT’s No-Dig Show is the largest trenchless technology conference in North America, where professionals attend to learn new techniques that will save money and improve infrastructure. The overall No-Dig program is focused on one objective: helping you maximize your investment in trenchless technologies, services and applications.