Latest from Tunnels and Tunnelling


LATEST NEWS

  • 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.
  • 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.

LATEST FEATURES

Sequential excavation method tunnelling
20 December, 2018 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.
  • UCT 2018
    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
  • Corridor Connections
    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

LATEST Blogs

Goodwill to some, not all
18 December, 2018 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.
  • Telling tales
    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.

LATEST EVENTS

  • NASTT
    17 Mar 2019 - 21 Mar 2019