Recent Evening Meetings

The BTS holds monthly evening meetings from September to June, generally on the third Thursday of the month. Unless otherwise stated, the meetings are at the Institution of Civil Engineers (ICE). Additional meetings are arranged by the BTS Young Members, by regional groups and as joint meetings with other societies. BTS Members can view recorded lectures on the ICE website for the first three months after the meeting. Thereafter the recordings are available for all to view and links are added below.


At the Univerysity of Central Lancashire. Joint Meeting: BTS / North West Geotechnical Group / Institute of Mechanical Engineers. From Preston to Hong Kong: High pressure hyperbaric interventions in tunnelling

The lecture will give a very brief introduction to compressed air work and its use for cutterhead maintenance interventions on Tunnel Boring Machines. It will focus on the use of state-of-the-art high-pressure techniques including non-air mixed gas breathing mixtures and saturation exposures for pressures of up to 15 bar. The hyperbaric engineering and physiology associated with such pressures will be explained as will the link between Preston and Tuen Mun – Chek Lap Kok tunnel in Hong Kong. Greenbank Lecture Theatre, Greenbank Building, Preston, PR1 1LJ. Parking permit can be downloaded on the tab to the right.



Technical Challenges with Future Tunnels in Norway: Under the City of Oslo and Deep Fjords

Norway has more than hard rock tunnelling. Under the city of Oslo you can find quick clay, black shale and a huge mix of different good and poor rock. In the middle of the existing infrastructure, we still plan for a new metro line, new railway line and tunnels for water, sewage and power cables. MSc Anne Kathrine Kalager will present the challenges, experiences and possible solutions for urban tunnelling in Oslo. In the more rural part of the country, we open the world’s longest and deepest subsea road tunnel on the 30th of December 2019. And we plan for an even longer and deeper tunnel on the western coast of Norway. Professor Eivind Grøv will present the challenges, possible solutions and the latest research regarding subsea tunnels and other larger infrastructure projects along the coast.


MSc Anne Kathrine Kalager, Project Manager, TBM Follo Line, Bane Nor; Professor Eivind Grov, Chief Scientist, SINTEF

Joint BTS/Minsouth Meeting - West Cumbria Mining

Since 2014, West Cumbria Mining has been developing plans for the creation of a metallurgical coal mine, off the coast near Whitehaven in West Cumbria to supply the UK and European steelmaking coal market, which currently imports around 45 million tonnes per annum. The presentation will cover the extensive programme of coal exploration, both onshore and offshore, which has determined details such as the design of the mine, method of extraction and processing of the coal itself. Mark will also cover the latest updates from the project and it is anticipated that site work will commence in Spring 2020, with coal production commencing around 24 months from the start of construction.


Mark Kirkbride, CEO, West Cumbria Mining

BTSYM February Meeting: Tunnel Maintenance, Repair & Improvement

Tunnels remain the most resilient, sustainable and cost effective civil engineering construction ever devised - as long as they are maintained well. With a substantial number of tunnels within UK reaching the limits of their use, the demand for pragmatic solutions for maintaining, repairing and improving existing tun-nel assets has therefore increased. Drawing in David’s 30+ years of experience, the lecture will provide an overview of various issues that existing tunnels face and explore the solutions that have previously been utilised for repairing, as well as improving, them.


David Hindle (Retired; ex-Chairman, OTB Engineering)

BTS March Meeting: Experimental investigations into the spalling of high strength concrete and the fire performance of tunnel linings

Tom Lennon, Principal Consultant at BRE Global, will give an overview of research into spalling of concrete structures and methods for assessing the fire performance of tunnel linings.


Tom Lennon, Principal Consultant at BRE Global

BTSYM April Meeting: Tunnel Ventilation

ONLINE ONLY - Ventilation systems play a critical role in ensuring operability and fire-safety of tunnels. It is therefore integral to understand reasons for tunnel ventilation, key factors governing ventilation design, and available equipment. Mark’s textbook talk on Tunnel Ventilation will provide an insight into fire and smoke control basics and analysis methods for Rail vs Road Tunnels. The talk will also provide an overview of different ventilation system types and approaches, as well as systems and equipment available for utilisation within underground space.


BTS April Meeting: Cancelled

Meetings held in previous years can be found in the Evening Meetings Archive.