Latest from Tunnels and Tunnelling
Take initiative
Lindsey Gauthier, research assistant, and Lana Gutwin, research coordinator, both of CETT, outline the work and research of the consortium, which is part of the University of Alberta
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Waterview tunnel
Tommy Parker, NZ Transport Agency and Iain Simmons, Well-Connected Alliance gave a presentation on the Waterview Connections project. Paul Perry of Hewson Consulting Engineers reports
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A digital twin
Digitalisation offers a variety of new possibilities. One of them is the modelling of infrastructure with Building Information Modelling (BIM).
Read moreLATEST NEWS
Sydney Metro CBD breakthrough
Australia – The first TBM has broken through into the Pitt Street metro station in Sydney’s central business district (CBD). TBM ‘Nancy’, a double shield hard rock gripper machine manufactured by Herrenknecht has tunnelled 6km through sandstone and shale since launching from Marrickville in October. TBM ‘Mum Shirl’, excavating the parallel tunnel, is a few hundred metres behind.
Australia – The first TBM has broken through into the Pitt Street metro station in Sydney’s central business district (CBD). TBM ‘Nancy’, a double shield hard rock gripper machine manufactured by Herrenknecht has tunnelled 6km through sandstone and shale since launching from Marrickville in October. TBM ‘Mum Shirl’, excavating the parallel tunnel, is a few hundred metres behind.
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Crossrail issues three-month progress update
Great Britain – Crossrail has released a progress update covering the last three months. The client has committed to regular updates, following heavy criticism for budget and schedule overruns.
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NYC DEP celebrates breakthrough on Delaware Bypass project
New York – New York City Department of Environmental Protection (DEP) commissioner Vincent Sapienza and crews celebrated the TBM breakthrough at shaft 6B on the Delaware Aqueduct Bypass tunnel project.
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Second Terratec TBM delivered to Rio Subterraneo a Lomas
Argentina – The second of two new 4.66m diameter Terratec EPBMs has been delivered for a 13.5km potable water tunnel system, in Buenos Aires. Factory acceptance for the TBM, which was manufactured for the Río Subterráneo a Lomas tunnel, took place in July.
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Montgomery Tunnel ventilation upgrades double thrust
Belgium – MoJet outlet silencers have doubled the in-tunnel thrust of the jet fans at the Montgomery Tunnel in Brussels.
LATEST FEATURES
Monitoring of ground surface movements induced by the construction of the Chelsea to Battersea Pipeline Tunnel project is presented as part of this case study. The surface settlements induced by the shaft construction have been analysed and compared with current methodologies and information from recent projects. Movements from excavation and construction of the tunnel are also analysed, and back-analysis of volume losses is presented. The authors are Veriuska Ortiz Lovera, geotechnical engineer, Mott MacDonald; Andrew Hejdner, project manager, Cadent Gas; James McCaffrey, construction manager, Skanska UK Construction; and Mohammad Arasteh, senior tunnel engineer, Mott MacDonald
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Enrique fernández gonzález
Alejandro Sanz of gGravity Engineering remembers Enrique Fernández González (1960-2019)
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Get the muck out
Following reader requests, Amy Duncan of Dos Santos International has written this article on the development of the sandwich belt high angle conveyor concept, which has recently been employed on the Grand Paris Express project
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Marr’s improved lifting plan for sydney metro
An existing lifting plan for the Sydney Metro project was scrapped in favour of one more appropriate for cramped site conditions. Paola De Pascali reports
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Underground heat recovery
Matt Houchin, assistant engineer – tunnel ventilation and operations, WSP, presents this paper on the potential for heat recovery from tunnels
LATEST Blogs
Planning for the twenties
In this issue of Tunnels and Tunnelling International Paola De Pascali reports from the World Tunnel Congress, which was held in Naples in May and saw a number of publications from working groups and committees. The ITA Committee for Technology (ITAtech was particularly prolific.
In this issue of Tunnels and Tunnelling International Paola De Pascali reports from the World Tunnel Congress, which was held in Naples in May and saw a number of publications from working groups and committees. The ITA Committee for Technology (ITAtech was particularly prolific.
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Wisdom of the Faroes
As I write, the Tunnels and Tunnelling team is preparing to leave for the Rapid Excavation and Tunnelling Conference in the USA, the world’s richest, and one of its largest countries. It always seems to have a megaproject underway or in the pipeline.
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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.
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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.
