Latest from Tunnels and Tunnelling
The big conversion
Paola De Pascali spoke with Florent Detraux, tunnel construction manager at Vinci Construction Grand Projets, about the conversion of an NFM TBM to use Herrenknecht Variable Density technology on the third metro line Phase 4A in Cairo.
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Helsinki spreads west
Paola De Pascali talked with Salminen Jukka principal designer of rock engineering at Pöyry’s to understand how the Western Metro is being extended from Matinkylä to Kivenlahti.
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Remaking Nepal
Alex Conacher travelled to the Bheri Babai Diversion Multipurpose Project in Nepal, where, in a world first, tunnellers are driving a TBM through the Himalayan Siwalik geology. Once complete the project will unlock irrigation and hydropower potential in the region.
Read moreLATEST NEWS
Final breakthrough at Emisor Oriente
Mexico – The final breakthrough was celebrated at Lot 4 of Mexico City’s Túnel Emisor Oriente (TEO) in May after marking the completion of ten years and 62.1km of tunnelling. The contractor, Carso Infraestructura y Construcción (CARSO) completed the drive with the last of six 8.93m diameter Robbins EPBs.
Mexico – The final breakthrough was celebrated at Lot 4 of Mexico City’s Túnel Emisor Oriente (TEO) in May after marking the completion of ten years and 62.1km of tunnelling. The contractor, Carso Infraestructura y Construcción (CARSO) completed the drive with the last of six 8.93m diameter Robbins EPBs.
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VSM record depth at York Potash
Great Britain – The Herrenknecht vertical shaft sinking machine has finished its work at Woodsmith Mine, excavating the access shaft for Sirius Minerals transport system to 115m and setting a new VSM world record in the process. The previous record was 84m. The shaft will now be excavated using traditional techniques to the full 360m depth.
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LA Purple Line celebrates halfway milestone
US – Los Angeles' Purple Line Extension project celebrated a major milestone on June 2—the halfway completion mark for construction on Section 1, the first four-mile subway section between Koreatown and Beverly Hills, Stantec announced on June 4.
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Cranes supplier details improved lifting plan for Sydney Metro
Australia – Marr Contracting supplied two tower cranes to the Sydney Metro. The tower cranes were an update to an earlier plan, which anticipated the use of crawlers. However, site congestion made this untenable.
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Breakthrough on Blacklick
US – The first microtunnel drive on the Blacklick Creek Trunk Sewer in Albany, Ohio, made a breakthrough, Aldea Services announced yesterday. It is serving as the construction management team and trenchless design engineers.
LATEST FEATURES
Horizontal Directional Drilling (HDD)
Includes: Q&A with Ali Asadi (M.Eng Candidate from Concordia University’s Department of Building, Civil and Environmental Engineering)
Includes: Q&A with Ali Asadi (M.Eng Candidate from Concordia University’s Department of Building, Civil and Environmental Engineering)
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Conditions of contract
Alex Conacher reports on the Emerald Book, published at WTC 2019
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A step forward for fresh air
Fathi Tarada, managing director of Mosen Ltd, reviews a new emissions guidance report issued by the World Road Association
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Restoration
Matthew Hubel, Schemmer Associates, discusses restoration for the City of Omaha’s Missouri River Water Resource Recovery Facility
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In the clear
Tunnelling below St. Louis will improve wastewater capacity and alleviate overflows, Desiree Willis, technical writer for Robbins, reports
LATEST Blogs
Preserving old and new
Joining WTC 2019 in Naples was a full immersion into the Italian art of tunnelling. The plan was to show how engineering and innovation meet archaeology, architecture and art. The beauty of Naples is not only above ground, but it is a cradle of underground works, which unveils a network of Greek and Roman tunnels and underground structures dating to the fourth century BC.
Joining WTC 2019 in Naples was a full immersion into the Italian art of tunnelling. The plan was to show how engineering and innovation meet archaeology, architecture and art. The beauty of Naples is not only above ground, but it is a cradle of underground works, which unveils a network of Greek and Roman tunnels and underground structures dating to the fourth century BC.
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Underground Movement
Tunnels and Tunnelling turns 50 this month. Here follows the magazine’s first ever editorial, reprinted in tribute to the founding editor:
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Records not worth breaking
In June the tunnelling industry will gather in Chicago for its annual conference, a city that has invested heavily in stormwater management.
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Congress, clients and codes
If you are one of the 1,000 or so delegates at the World Tunnel Congress; benvenuto a Napoli. This year it is Europe’s turn to host WTC, with Naples being selected at the 2016 congress in San Francisco as the industry’s chosen gathering point.
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Update from Forrestfield
There is some late-breaking news as Tunnels and Tunnelling International goes to press. On 19 February the Forrestfield-Airport Link’s client announced that its two stopped TBMs should resume tunnelling in mid- and late-March respectively, good news for a project that was previously held up by a sinkhole last September.
