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Benoit Jones

Benoît is no longer an employee of the University of Warwick, but is an Honorary Fellow, which is kind of like a friend with benefits. Benoît is also Managing Director of Inbye Engineering Ltd, a spin-out company based on technology he invented, patented and developed while at the University of Warwick.

What's new or particularly interesting?

  • SMUTI is a finalist in the Ground Engineering Awards 2017.
  • "Strength Monitoring Using Thermal Imaging at Bond Street Station Upgrade" won two NCE Tunnelling Awards for Technology Innovation of the Year and Technical Innovation of the Year in London on 8th December 2016.
  • Benoit received the Austrian Tunnelling Society (ITA Austria)'s innovation prize special award for "International Contribution to Strengthening the NATM" at the Salzburg Geomechanics Colloquium on 12th October 2016.
  • Bowen Yang presented our paper "Numerical analysis of TBM tunnelling in sand using a state parameter model" at the International Conference on Geomechanics, Geo-energy and Geo-resources (IC3G) in Melbourne, Australia, 28th-29th September 2016.
  • Vishwajeet Ahuja presented our paper "Non-destructive approach for shotcrete lining strength monitoring" at the World Tunnel Congress in San Francisco, 22nd - 28th April 2016.
  • A short movie of the BTS conference presentation I gave on the 24th October 2013 about SMUTI

Biography

Benoît Jones graduated from the University of Bristol in 2000 with a First Class Honours degree in Civil Engineering with Study in Europe (Polytech’ Grenoble, France). He then joined Mott MacDonald as a Graduate Tunnel Engineer. Between 2002-2006 he undertook research for an EngD at the University of Southampton with Professor Chris Clayton as his supervisor, sponsored by Mott MacDonald and the EPSRC. After working on Crossrail MDC3, in late 2007 he went to work for Morgan Est (now Morgan Sindall) as Section Engineer on the King’s Cross Underground Station Redevelopment, then as Engineering Manager on the Stoke Newington to New River Head Thames Water Ring Main Extension Tunnel. In Autumn 2010 he joined OTB Engineering, a small consultancy specialising in tunnelling and geotechnics, working on temporary works designs for Tottenham Court Road Station Upgrade and for the Crossrail Eastern Running Tunnels (C305). He joined the School of Engineering at the University of Warwick in September 2011.

During his time with Chris Clayton at the University of Southampton he sought to answer questions about how loads come onto tunnel linings, and how tunnel junctions behave and should be analysed. This included field measurements and laboratory tests involving pressure cells, and numerical experiments using FLAC3D. The work on stress measurements used field data obtained from pressure cells installed in the sprayed concrete lining of the Heathrow Express Terminal 4 station concourse tunnel and the Terminal 5 SWOT frontshunt tunnel. Data was collected over 8 ½ years and 9 months respectively. Laboratory testing and careful analysis of the field data revealed a new kind of temperature sensitivity, the ‘ground reaction temperature sensitivity’. A suite of 3D numerical experiments simulating sequential tunnel junction construction with the ground modelled explicitly showed that most 2D approximations, wished-in-place analyses and Winkler spring models of shaft-tunnel junctions are both unconservative and incorrect.

He has worked with a large variety of different people from very different backgrounds. As well as working long shifts at the tunnel face, he has learnt a great deal about time management, safety, risk and contracts. He has managed subcontracts for design, monitoring services, labour-only, priced work and M&E installations. He successfully managed the interfaces with Network Rail, London Underground, Tube Lines, Metronet, Network Rail (CTRL) and British Waterways, whose tunnels and stations were underpassed by the Thames Water Ring Main Extension tunnel over a period of just a few months. At the same time he improved methods of predicting subsurface ground settlements due to tunnelling after finding that existing methods were inadequate at the depths below ground surface (40-60m) encountered on the project.

Research

Current research interests include:

  • New methods of early age strength testing for sprayed concrete linings (SMUTI)
  • Back-calculation of stresses from measured strains
  • Tunnel monitoring and its interpretation
  • Sprayed concrete technology and the composite action of sprayed concrete layers with or without waterproof membranes between them
  • The empirical and theoretical prediction of ground movements due to tunnelling
  • Uplift stability of open face tunnels

Teaching

From 2011 to the end of 2015, Benoît led or contributed to the following modules:

Research Grants and Contracts

  • 2014-2015: "The avoidance of bridge reconstruction" (with focus on tunnel enlargment to fit OHLE), SBRI/RSSB, £64k. Partners: TRL, OTB Engineering, Donaldson Associates.
  • 2012-2013: "Using thermal imaging techniques for the first time to monitor early strength development of sprayed concrete", Warwick Impact Fund (supported by the Higher Education Innovation Fund Round 5), £49k.
  • 2010-2012: "Surface and subsurface settlements due to tunnelling", ICE Research and Development Enabling Fund, £7k.

Professional Involvement

  • Chartered Civil Engineer, Member of the Institution of Civil Engineers
  • Editorial Panel member, ICE Proceedings Geotechnical Engineering, 2010-2015
  • Member of the Scientific Committee for WTC2016 in San Francisco
  • Member of the Organising Committee for BTS2013, BTS2014 and BTS2016 conferences
  • Member of the British Tunnelling Society (BTS), British Geotechnical Association (BGA), International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE) and the International Society for Rock Mechanics (ISRM)

Awards and Invited Lectures

  • 2016: 2 NCE Tunnelling Awards for "Strength Monitoring Using Thermal Imaging at Bond Street Station Upgrade", received in London on 8/12/16.
  • 2016: Ran workshop session on "Innovation in today's tunnelling projects" at the NCE Tunnelling Summit, London, 8/12/16.
  • 2016: ITA Austria Innovation Prize special award for "International Contribution to Strengthening the NATM" for Strength Monitoring Using Thermal Imaging, received in Salzburg on 12/10/16.
  • 2016: Invited lecture at BTS2016 Conference on Strength Monitoring Using Thermal Imaging at Bond Street Station Upgrade, with Aled Davies of Costain, London, 11/10/16.
  • 2016: Lecture to the Cambridge University Geotechnical Society, Queens' College, 17/2/16.
  • 2014: Lecture at East Midlands Geotechnical Group meeting, Nottingham University, 8/4/14.
  • 2013: Invited Lecture at BTS2013 Conference (see above in What's New?).
  • 2012: Lecture at the BTS Young Members' Conference at the ICE on 1st November 2012.
  • 2012: ICE Geotechnical Engineering Lecture "Low volume loss tunnelling for London Ring Main extension". Adobe Connect version appears to be corrupted so here are the presentation slides: Link to PDF of slides
  • 2010: ICE Geotechnical Engineering Lecture "Evaluation of innovative sprayed-concrete-lined tunnelling" (jointly with Chris Mundell of Atkins)
  • 2009: ICE Telford Premium Award for outstanding contribution to the civil engineering literature for "Evaluation of innovative sprayed-concrete-lined tunnelling" (Southwark News, Proc. ICE Geotechnical Engineering)
  • 2008-2010: ETB (now known as EngineeringUK) Visiting Lecturer

Selected Publications


Benoit Jones

Dr Benoît Jones
 
MEng EngD CEng MICE

Honorary Fellow

School of Engineering
University of Warwick
Coventry CV4 7AL
United Kingdom

B dot D dot Jones at warwick dot ac dot uk