Features Archive

Archive of features from the global tunnels industry

Features By Date

October 2017

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Ground control
18 October 2017 Joseph Sopko, director of ground freezing for Moretrench, discusses the design of frozen Earth structure for cross passage excavation

In the field
18 October 2017 In June students from the geomechanics graduate program at Queen’s University in Kingston, travelled to Europe for two weeks of research and tours—seeing first hand the challenges and innovative solutions required to complete the region’s impressive geological engineering projects. Mark Diederichs reports

Working remotely
18 October 2017 Nichole Boultbee, engineering geologist with Golder Associates Ltd. and Oliver Robson, project manager with Innergex Renewable Energy Inc., report on the challenges of working in a remote and sensitive environment for the now operational Upper Lillooet River hydro facility

In the nick of time
18 October 2017 To secure the potable water supply for Montreal, a new intake tunnel is being built with a fast-track design and construction schedule. Jean Habimana, regional tunnel practice lead - east region for Hatc

Investigate and implement
17 October 2017 Toronto is preparing to build 22km of tunnels to improve waterways in the Great Lakes Basin. Mark Bruder of R.V. Anderson Associates Limited, Daniel Cressman of Black & Veatch, and Robert Mayberry with the City of Toronto outline the geotechnical investigation program for the Don River and Central Waterfront Wet Weather Flow System

Just like new
12 October 2017 In the TBM world, multi-use machines offer time and cost savings

Design considerations
12 October 2017 ACI recently drafted a new report as the first design guideline on FRC tunnel segments to provide specific guidance for this emerging technology. Mehdi Bakhshi, Verya Nasri and Federica Mercuriello of Aecom discuss how to implement the ACI 544 Guideline into tunnel design

Deep pile foundation interceptions in tunnelling at bank station
12 October 2017 This article is a reproduction of Omar Mohammed’s Harding Prize winning paper. The original can be found on the BTS website

Eyes on the prize
12 October 2017 The BTS Harding Prize recognises outstanding performance in the tunnelling industry by young engineers under the age of 33. Sally Spencer spoke to this year’s winner, Transport for London’s Omar Mohammed

Why hold back those tiers
12 October 2017 Martin Knights looks at the process of cooperation and innovation, and calls for a more collegial approach

September 2017

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Strength monitoring using thermal imaging
06 September 2017 In April Benoît Jones, managing director of Inbye Engineering and an Honorary Fellow at the University of Warwick, gave a presentation to the British Tunnelling Society Young Members on a new technology for monitoring the early strength of shotcrete called ‘Strength Monitoring Using Thermal Imaging’, or ‘SMUTI’. This article is a summary of the presentation

Bonding well
06 September 2017 To repair a limestone block tunnel more than 120 years old, a local watershed agency and its engineering consultant devised a solution using shotcrete to create a tunnel in a tunnel. Nicole Robinson reports on the Trout Brook Storm Sewer Interceptor’s rehabilitation

Andean Potential
06 September 2017 From hydropower and metro systems to mining and road tunnels, Chile’s tunnelling market remains buoyant and some major projects are on the horizon

Mair takes ice Presidency
06 September 2017 Paola De Pascali met with Lord Robert Mair to discuss his life and times as he prepares to take up the presidency of the ICE in 2018

James Clark Winner
06 September 2017 The BTS has recognised the life’s work and contribution of Joseph Gallagher Ltd chairman Joseph Gallagher by awarding him this year’s James Clark Medal. He talks to Keren Fallwell about his career

August 2017

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Design Considerations
30 August 2017 ACI recently drafted a new report as the first design guideline on FRC tunnel segments to provide specific guidance for this emerging technology. Mehdi Bakhshi, Verya Nasri and Federica Mercuriello of Aecom discuss how to implement the ACI 544 Guideline into tunnel design

TAC Workshop 2017
30 August 2017 Every autumn the Tunnelling Association of Canada (TAC) alternates hosting a conference in even years and a workshop in odd. This year tunnellers will convene in Montreal at the École de Technologie Supérieure (ÉTS), October 12-13 for “Tunnelling and Underground Spaces – The Urban Challenge.”

GeoOttawa
30 August 2017 The Canadian Geotechnical Society (CGS) and the Canadian National Chapter of the International Association of Hydrogeologists (IAH-CNC) are hosting GeoOttawa 2017, the 70th Canadian Geotechnical Conference and the 12th Joint CGS/IAH-CNC Groundwater Conference. The conference will be held at the Shaw Centre in Ottawa, Ontario, from Sunday, October 1 to Wednesday, October 4.

Rules of Thumb
29 August 2017 In this issue Keivan Rafie covers the design and specification of waterproofing systems

In Practice
29 August 2017 Over the past two decades major advancements have been developed to improve the mechanical performance, ease of application and durability of shotcrete materials. Nicolas Ginouse, William Clements and Scott Rand of King Packaged Materials Company present an overview of current state-of-theart practices and latest technology available to the tunnelling industry.

Bonding well
29 August 2017 To repair a limestone block tunnel more than 120 years old, a local watershed agency and its engineering consultant devised a solution using shotcrete to create a tunnel in a tunnel. Nicole Robinson reports on the Trout Brook Storm Sewer Interceptor’s rehabilitation