Evening Meetings 2009

The BTS has a membership of almost 700 individual and over 60 corporate members. It is one of the most vibrant gatherings of professional tunnellers in the world.


Canada Line Transit Tunnels, Vancouver, British Columbia

Ground stability when excavating in Earth Pressure Balance mode; how changes to the conditioning of the excavated soil cope with varying challenges presented by a highly permeable layer.


Professor Dan Eisenstein, Tunnelling Consultant; Jeff Hewitt, Canada Line Rapid Transit Inc.; Marco Moccichino, SELI; Andrea Ciamei SELI

Chalk mine treatment - new approaches. Joint Meeting with MinSouthBriars Lane mine stabilisation.

The scheme has used a structured approach to the specification, implementation and validation of chalk mine treatment methodologies and risk management. The presentation paper summarises the results of the works, details the methodologies employed and provides a benchmark for future chalk mine treatment schemes.


Chris Milne, Geotechnical Consultant to Hyder Consulting; Andrew O'Donovan, BAM Ritchies; John Rigby Jones, RJM Ground Solutions Limited

Disputes in Construction & Tunnelling Contracts: causes, rememdies, and lessons learned

Using case histories and their own experience, the speakers will consider the common causes of contractual disagreements on construction projects in general and tunneling schemes in particular. The talk will review how these issues may be addressed under the contract and through other means, and what lessons can be learned to prevent or reduce them on future projects.


Dr Nigel Legge, Navigant Consulting; Garry Crossley, Navigant Consulting; Caroline Pope, Berwin Leighton Paisner

Harding Prize 2009

Presentation of best papers for Engineers under the age of 33.


Formed in 1971 to provide a forum for meetings and discussion on tunnel-related matters, the BTS also publishes industry guidelines and codes of practice; conducts training courses to advance the education of tunnelling professionals; actively supports the recruitment of young people to the industry; acknowledges excellence in tunnelling; sponsors and supports industry conferences; and advises Government and the general public on the tunnelling industry.
Welcome to our site, our industry, our activities.


AGM and A3 Hindhead Tunnel

Design and construction of the primary lining at A3, Hindhead


Roger Bridge, Balfour Beatty; Paul Arnold, Highways Agency; Simon Stephenson, Mott MacDonald

Lessons learned from the Pinheiros Station accident in Sao Paulo, Brazil

This presentation will focus on the Pinheiros Station accident which occurred on 12 January 2007, during the construction of Line 4 of the Sao Paulo Metro. The presentation is based on the official investigation, carried out by the Institute for Technological Research of Sao Paulo. Main aspects of contracting, design, construction and management will be addressed, as well as risk factors and causes of the accident, aiming to draw lessons for future projects of tunnelling in urban areas.


Professor A P Assis, Sao Paulo Institute for Technological Research; Dr J M Barros, Sao Paulo Institute for Technological Research

Seismic Response of Segmental Tunnel Linings

The presentation discusses the results of analyses to predict radial and circumferential joint behaviour during seismic ovaling and wave propagation and provides guidelines for the design of precast systems in zones of high seismicity.


Gary Kramer, Hatch Mott MacDonald

Reconstruction of the Channel Tunnel after the fire of September 2008

Christian Maquaire will explain how Eurotunnel successfully rebuilt the fire-damaged section of the Channel Tunnel in less than four months. He will describe in detail each stage in the works - from initial diagnostics to the final techniques to restore commercial services - and highlight the major innovations developed by Eurotunnel during this project.


Christian Maquaire, Industrial Director, Eurotunnel

The Belfast Sewers Project - Stormwater Management Works Contract. Joint Meeting with BGA.

The Belfast Sewers Project is designed to alleviate the risk of flooding in central Belfast and improve the water quality of the River Lagan and its tributaries by significantly reducing the pollutant loadings from a number of combined sewer overflows. The scheme comprises 9.6km of tunnels which vary in diameter from 1.5m to 4m at depths ranging from 10m to 30m. The works also include 19 access shafts located throughout the city. The geology of Belfast is complex and highly variable which presented significant challenges throughout the construction phase.


Dr Alan Skates, Project Manager, Atkins; Mr W Gowdy, Project Sponsor, Northern Ireland Water; Mr Paul Ronicle, Project Manager, Morgan Est/Farrans JV

Debate by BTS Young Members Group

This house believes that the UK tunnelling industry has the sufficient range of engineering expertise and resources to meet the challenges of future projects. Abstract: the future of our tunnelling industry is uncertain. The discontinuous nature of landmark tunnelling projects has left a generation gap within the industry in both skills and experience. With world class infrastructure projects looming, the ability and reputation of the UK to resource these effectively is fast becoming an issue of national if not international importance. Each team will comprise a speaker from both ends of the age spectrum to ensure a vigorous and provocative debate. Audience participation is warmly welcomed.


Chair: Kate Cooksey, BTS YMG; For: Harnaik Mann, Arup; Neville Harrison, Consultant; Against: Jon Banyai, Mott MacDonald; John Edwards, Morgan Est