Latest from Tunnels and Tunnelling
Missed opportunities
Simon Burras of Applied Industrial System laments what are for him the three main missed opportunities to reduce cost of ownership on tunnel life safety systems.
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Santiago Expressway
This article looks at the challenges of constructing a tunnel in the urban environment of Santiago, through soils. The authors are Juan Kuster and Rossana Nuñez of Costanera Norte and Erik Chávez,...
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Bolaños Tunnel
An innovative stabilisation system has allowed contractor FCC-Acciona to stay on track boring the Bolaños Rail Tunnel, which is a critical part of Spain’s high speed rail expansion
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Sydney harbour crossing awarded
Australia – A JV of CPB Contractors, John Holland and Ghella has been awarded the new metro crossing below Sydney Harbour. Ghella takes a 10% share, with CPB (a CIMIC company) and John Holland splitting the remainder equally.
Australia – A JV of CPB Contractors, John Holland and Ghella has been awarded the new metro crossing below Sydney Harbour. Ghella takes a 10% share, with CPB (a CIMIC company) and John Holland splitting the remainder equally.
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Four groups in contest for Zojila Tunnel
India - Local media has reported that four teams are in the running for the Zojila Tunnel contract in Jammu & Kashmir, northern India. These are: a JV of Reliance Infrastructure and Dogus Construction; Larsen and Toubro; IL&FS Engineering and Construction; Jaiprakash Power Ventures
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Fort Wayne celebrates ceremonial start to tunnel
USA - The mayor, Tom Henry, and members of the Fort Wayne City Council, along with staff from the Utility Advisory Group, and contractors S.A. Healy Company and Salini Impregilo, among others, attended a ceremony to mark ground breaking for tunnelling on June 15.
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NY governor orders accelerated tunnel repairs
USA – New York's governor Andrew Cuomo announced June 12 orders to accelerate construction on bridges and tunnels in the region, in anticipation of added traffic due to Amtrak emergency repair work.
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Regional Connector project makes milestone
US – The TBM excavating twin tunnels for the Regional Connector project in Los Angeles broke through to the Grand Ave/Bunker Hills Station at 2nd/Hope Thursday morning, June 1.
LATEST FEATURES
It is the morning after Burns Night and Tunnels and Tunnelling visits the Costain-Vinci Construction Grands Projets joint venture working on the Shieldhall Strategic Tunnel project in Glasgow for client, Scottish Water. One of the main purposes is to stop the disfiguring floods in the city whose name in broken Gaelic means ‘dear green place’
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The expanse macabre
Rolzur Eternal Green Solutions is constructing an underground mausoleum in Israel to meetthe growing demand for burial space. Alex Conacher reports
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Hidden and safe
Paola De Pascali talked with an Italian Consortium that proposes to put nuclear power plants underground, including the reactor, repositories, and a centre for characterisation, treatment and conditioning of radioactive waste
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Shape matters
Sarah Cain and Mark Diederichs of the Geological Sciences and Geological Engineering department of Queen’s University in Kingston, Ontario, study the impact of tunnel shape and profile details on brittle damage development. Cain is the recipient of the Dan Eisenstein Memorial Scholarship, which is awarded annually to a post-graduate student planning to undertake or currently undertaking post-graduate studies in the field of tunnelling at a recognised university in Canada
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Uncanny valley
The use of digital technology to improve training is growing in the tunnelling sector withinnovations that can improve safety and save money
BLOGS
All the way up, all the way down
More rumblings from California as a SpaceX employee has posted a photo of Elon Musk’s newly acquired TBM to Instagram – before swiftly removing it. Before moving on, a quick glossary: SpaceX is the packleader of several companies that are vying to commercialise and reduce the cost of space travel; Elon Musk is its eccentric South African billionaire owner and Instagram is a social media platform for photographs that boasts 700 million users.
More rumblings from California as a SpaceX employee has posted a photo of Elon Musk’s newly acquired TBM to Instagram – before swiftly removing it. Before moving on, a quick glossary: SpaceX is the packleader of several companies that are vying to commercialise and reduce the cost of space travel; Elon Musk is its eccentric South African billionaire owner and Instagram is a social media platform for photographs that boasts 700 million users.
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Approaching the age gap
Two-thirds of job openings for engineers in Canada are related to retirement replacement, according to a report released by the association Engineers Canada.
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Confidence in conferences
Parallel technical sessions seem to irritate conference goers, with particularly awkward setups being remembered and discussed for years after the event.
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Calling drifter
In this issue we have a comment article written by Martin Knights, a past president of the International Tunnelling Association calling on engineers to “value their signature” and think about what they are putting their names to when they sign off on something. It starts on page 18 and is well worth a read.
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Peak Demand
The fourth and final unity of the Ingula Pumped Storage Scheme recently went into commercial operation. Most readers will be aware of the need for schemes of this type, but it is interesting to sit down and think about the sheer importance of the end-use of what tunnel engineers are building.
