Latest from Tunnels and Tunnelling
Fugro’s Rod Eddies, Simon Brightwell and Ray Wood discuss how tunnelling risks related to the ground and built structure can be managed into better stakeholder outcomes - such as accelerated construction, extended asset life and optimised return on investment - through integrated and appropriately phased use of modern geoscientific technologiesRead more
The tender process of the Rijnlandroute tunnel project in the West of the Netherlands adopted the Most Economically Advantageous Tender (MEAT) principle. This meant that the pricing offer of all bidders was reduced to a certain degree, based upon each bidder’s score for predefined criteria. Criteria such as reduction of hindrance, reduction of risks and request for a damage-free lining led to an incentive for innovationRead more
Algiers Metro TBM factory acceptance
Algeria – A CREG TBM has undergone factory acceptance ahead of delivery to the Algiers Metro Extension project. The 10.5m-diameter EPBM will bore a the 9.5km from El Harrach Station to Houari Boumediene International Airport. The contractor is Seli Overseas.
McNeilly to lead program management and construction management at WSP
US – Bernard P. McNeilly has been named to lead program management and construction management (PM/CM) at WSP USA, the company announced January 10.
Humber Tunnel TBM passes halfway point
Great Britain – The TBM boring the 5km Humber Tunnel has completed 50% of the excavation. The contractor, a joint venture of Skanska, Porr and A. Hak is utilising a VMT-guided, 4.4m-diameter Herrenknecht machine for excavation at a depth usually around 35m below the waterway with a minimum overburden of 12m. No ground treatment is foreseen.
HNTB adds to Seattle staff
US – Mike Wongkaew, joined HNTB Corporation’s national tunnel group on January 7 as national tunnel practice lead-Northwest and associate vice president. He is based in Bellevue, Washington, and oversees all tunnelling work on the Sound Transit West Seattle and Ballard Link Extension Project. He also serves as an accomplished resource to the firm’s clients and projects across the nation, the company said, adding in his previous capacity, Wongkaew served as chief tunnel engineer for research and development of an innovative underground transportation system.
Sequential excavation method (sem) is a type of tunnel design and construction that started to gain popularity in the 1960s and 1970s. The essential component of the SEM approach is to take advantage of the natural capacity and strength of surrounding geology to support the tunnel with minimum cost and time required.
T&T’s guide to UCT and highlights from the technical sessions
TAC Awards 2018
From rising stars to nationally acclaimed projects, the Tunnelling Association of Canada (TAC) presents its annual awards each fall to recognize the deserving individuals and engineering accomplishments in the Canadian tunnelling sector. The 2018 awards were presented on November 8 in Edmonton.
Time to travel
Bauma, the largest trade fair in the world, opens its doors in April 2019 in Germany. This year it will feature Canada as the partner country. Event organizers Messe Munchen and VDMA invite readers to attend the show
Federal, state and other agencies are working to bring super conducting maglev technology to the United States with an initial rail line between D.C. and Baltimore. Nicole Robinson looks at what the projects entails and what the tunnelling industry can expect
In what is possibly a nod to the season of good cheer, Ipsos Mori has published its annual veracity index. This poll by the market research company has the accolade of being the longest-running poll on trust in professions, having been taken consistently since 1983. The poll is simple; it asks respondents to say whether they trust different types of people to generally tell the truth.
Every few months I have a meeting with the magazine’s Editorial Advisory Board, in which I ask their advice, plan future issues and weather some constructive criticism (this editorial will be reviewed at about 11.30am on 18 January 2019 – not that I am feeling self-conscious).
Half a Degree
As T&T went to press the Intergovernmental Panel on Climate Change (IPCC), the UN body for assessing the science related to climate change, announced that limiting global warming to 1.5°C compared to 2°C would provide clear benefits to people and natural ecosystems, and goes hand in hand with ensuring a more sustainable and equitable society.
Science of the small
It has been a while since I wrote about tunnelling efforts to further humanity’s understanding of particle physics.
Welsh fairy tale
Fairy tales: we all remember our favourites. Steve Mackey, chair of the Rhondda Tunnel Society may well be living his own.
4th Annual Urban Underground Space & Tunnelling