A tunnel collapse has shut down Ethiopia’s newest and biggest hydropower station only weeks after it was opened.
Extensive hydro-demolition is under way on Montreal’s Highway 720 Ville Marie tunnel, as part of refurbishment works necessitated by failing concrete.
Normet has announced a promising start to 2010 with a capacity expansion in Finland, a new spare-parts centre in Holland and a big order from Hong Kong
Normet International has appointed Odd-Bjørn Kleven as director of tunnelling and special projects, a position which he has already taken up.
British Precast, the trade body for the UK concrete products industry, has started preparing a new specification for precast tunnel and shaft linings.
Following an official cutter-turning ceremony in January, the largest TBM ever seen in Mexico began excavating the 7.7km tunnel for Mexico City’s Line 12 metro.
Vietnam-based infrastructure construction specialist Cavico has signed a new agreement with state-owned Lilama for additional construction work at the Hua Na Hydropower plant in Vietnam.
UK-based BAM Nuttall Group (BNG) will be refurbishing the northbound bore of London’s Blackwall Tunnel under a US$76 million contract, signed recently with Transport for London.
A geologist and civil engineer by training, Boston area-based
geoconsultant Dr Peter J Tarkoy is a controversial and self-styled visionary in the tunnelling industry. He talks to George Demetri
Innovative and patented ground-consolidation technologies were used
for a series of structural and waterproofing measures on this tunnel
project in Austria
Barry L Sorteberg, president of Clean Slurry Technologies, looks at the current state of play in slurry technologies
The recent WT Roundtable raised serious questions about the function of the International Tunnelling Association (ITA). Here is an edited transcript of the debate
TBM manufacturing is becoming a truly global affair. George Demetri reports on a project in Texas which brings together a world-wide manufacturing and shipping effort
With Bauma just around the corner on April 19-25 at the New Munich Trade
Fair Centre in Munich, Germany, we take a look at selected exhibitors
from the tunnelling sector