Latest from Tunnels and Tunnelling


Hamas publicises new tunneling activity
01 September, 2015 GAZA – Short months after Israel declared victory over Hamas in the underground theatre, the group has posted a propaganda video appearing to show a tunnel from its base in Gaza into Israel.
  • ITAtech publishes new segment guidance
    GLOBAL – The ITA Committee for Technology (ITAtech) has recently published a ‘draft’ guideline for the design of precast fibre reinforced concrete segments. Tunnels and Tunnelling understands that some internal politics is responsible for the draft label, but that it is in effect a finalised guideline.
  • Thames Tideway financial backers confirmed
    GREAT BRITAIN – Construction of the new ‘super sewer’ in London will begin next year. Confirmation of finance for the independent investors to finance and deliver the scheme was announced in August.
  • Buchan awarded Shieldhall ring supply contract
    GREAT BRITAIN – Buchan Underground was recently awarded a contract to supply 3,277 precast rings for the Shieldhall Tunnel project in Glasgow. Each 4.56m-diameter ring is made up of six segments, each weighing 2300kg that equates to over 19,500 segments to be supplied to the project.
  • Sulza in surprise leadership change
    SWITZERLAND – Pump manufacturer Sulza announced its surprise that CEO Klaus Stahlmann announced his resignation last month. The board of directors added that to maintain clarity and focus in management, it released Stahlman with immediate effect and appointed CFO Thomas Dittrich as interim CEO. The recruiting process is ongoing.


Multitasking in Mississauga
13 August, 2015 With six job sites near residential areas, building a new sewer requires well-coordinated operations. Keivan Rafie, project engineer on the Southland Technicore Mole JV and Anthony Parente, director, Wastewater - Region of Peel, report on the Hanlan Feedermain North and Mississauga City Centre Watermain Tunnels, and the JV's inhouse monitoring for noise and vibration.
  • Harbour rescue
    Despite damage by Superstorm Sandy, crews are smoothly wrapping up a successful tunnel project in New York. The journey to TBM breakthrough this January, however, was anything but smooth. Robbins technical writer Desiree Willis reports.
  • Rapid response
    Ground freezing in Washington, D.C., will reduce the effects of construction on a quiet neighborhood prone to flooding. Nicole Robinson reports on the First Street Tunnel.
  • Central America’s First Metro
    Central America’s first metro is a boon for tiny Panama’s traffic-beleaguered highways, but despite a positive start future work neglects tunnelling. Santiago Erans of FCC speaks to Tunnels and Tunnelling in the aftermath of a successful completion of Line One, and the award of Line Two.
  • Next gen potash
    At a joint meeting of the British Tunnelling Society and Min South, John Elliott - managing Director, Alan Auld Engineering and Alun Price Jones - technical Director, Cementation Mining presented the Picadilly potash mine in Canada. The presentation looked at some deep mine shafts and explored the next generation of potash mines currently being sunk in Canada. The design and construction of the shafts for the Piccadilly project were also described in detail.


Optimism Abounds
13 August, 2015 At the rapid excavation and Tunnelling Conference (RETC) in New Orleans this June, there was a discernable attitude shift of the industry from 2014 to 2015. At the North America Tunneling (NAT) event in Los Angeles—where a news crew local to Seattle roamed the exhibit hall, looking for answers about the stalled TBM on the Alaskan Way viaduct project—the tone of most conversations expressed hesitation, concern and frustration.
  • Holding out for a hero
    As I write this comment the Greek banks have closed. Accounts, and non-internal payments for the majority of account holders have been frozen and queues of people are lining up on the high streets to withdraw no more than EUR 60 (USD 66.88) per day. Some hours from now it is due to repay EUR 1.6bn (USD 1.78bn) to the International Monetary Fund (IMF), but it has just requested a new two-year EUR 29.1bn aid deal from a bailout mechanism that is in place for Eurozone countries.
  • Give a voice to future tech
    In a previous comment I wrote about ITA president Soren Eskesen's progress with bringing tunnelling to the attention of the UN bodies studying ways to mitigate the effects of flooding and other natural disasters caused by climate change. He has had some success in this, but talking about innovations and actually putting them in place are sometimes a world apart.
  • Closing the gender gap
    Last December, the University of Minnesota’s College of Science and Engineering hosted a very well-attended family fair showcasing science, technology, engineering and mathematics (STEM). Children as young as two years old built bridges out of marshmallows and toothpicks, as part of the civil engineering exhibit, and wide range of other activities designed by student across the various departments captivated the attention of of children of all ages.
  • Lofty hopes for world's highest
    FAR ABOVE the destruction and loss of life caused by the Nepal earthquake last month, climbers sheltering at the Everest Base Camp endured days of avalanches. Huddling together under tables, and taking it in turns to dig one another out of smothered tents.