Today on Tunnels & Tunnelling International


Xe-Pian Xe-Nammoy Project TBM en route
15 December, 2014 LAOS - A double shield TBM in on its way to the Xe-Pian Xe-Nammoy Hydropower project. The project calls for the construction of two central cored rock fill dams, waterway tunnels with a vertical shaft and a powerhouse generating capacity at 410MW.
  • TBM arrives in LA
    USA - The TBM cutterhead that will excavate portions of the Crenshaw/LAX light rail in Los Angeles arrived in late November from Germany, according to Metro Los Angeles.
  • Contractor pleas guilty in Toronto subway Construction Death
    CANADA - The 2011 death of a worker and injury to another at a Toronto Transit Commission (TTC) subway construction site in North York has resulted in a guilty plea and a CAD 400,000 (USD 350,000) fine, the Ministry of Labor of Ontario announced on November 28.
  • Mai Po to Ngau Tam Mei XRL tunnels excavated
    HONG KONG - The 2.35km northbound tunnel between Mai Po and Ngau Tam Mei in the Hong Kong section of the Guangzhou-Shenzhen-Hong Kong Express Rail Link project (XRL) was completed with the successful breakthrough of the TBM last month. Penta-Ocean Construction was awarded the contract four years ago.
  • Putin favours Crimea tunnel option
    RUSSIA - The Russian government plans to abolish a project to build a bridge to Crimea via the Kerch Strait and replace it by a tunnel, according to Oleg Savelyev, Russia’s minister for Crimean affairs.


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.