TBM DiGs 2022 - Tunnel Boring Machines in Difficult Ground

Montanuniversität Leoben - Zentrum am Berg & ÖGG, 23.11. - 25.11.2022

TBM DiGs is an international conference series that provides a specialized technological forum for discussing and exchanging knowledge related to TBM works in difficult ground conditions. This series covers a wide range of topics, including characterization of difficult ground, field observations and case studies, physical and laboratory tests, numerical modelling and techniques, treatments of difficult ground, TBM design and installation, tunnel support design, monitoring and risk management. TBM DiGs 2022 is the fifth conference in this series.


TBM DiGs 2022 is jointly organized by Montanuniversität Leoben and OEGG (Austrian Society for Geomechanics). The conference organizers would like to welcome researchers and practitioners involved with TBM tunnelling to TBM DiGs 2022 to share, to cooperate, and to progress.

The TBM DiGs 2022 will be  a hybrid event and both, speakers and attendees, can choose to attend online or live. Provisions will be made for both options.

Abstract Summary

Dear participants!

Here you will find the abstract summary at your disposal:

Abstract Summary

We are looking forward to seeing you in Leoben!

Conference objectives and topics

The conference aims to bring together all who are interested in the use of tunnel boring machines in difficult ground, to review developments in the field over the previous two years, and to attempt to extrapolate for the near-term future. We anticipate that the conference will explore a great variety of topics.

Presentations in the following areas are invited:

  • Rock - Very Hard and Abrasive rocks
  • Rock - Squeezing ground
  • Rock - Long and deep tunnels
  • Soil - Sticky soil and Clogging
  • Soil - Abrasive sand and wear problems
  • Soil - High water pressure – hyperbaric challenges
  • Mixed Ground conditions
  • Innovation – New Technology (construction chemicals, sensory systems, big data, operational simulation)
  • High Groundwater inflow / Gassy tunnels
  • Extreme TBM tunneling (very small/big TBMs, remote areas, outer space construction)
  • Manufacturing challenges and new developments
  • Logistics and Site Management for challenging TBM tunneling

Key note speakers

Dipl.-Ing. Lars Babendererde

BabEng, Germany

Title of speech:
"Tunnelling remains vital!"

Prof. Dr. Mark Diederichs

Queen’s University, Canada

Title of speech:
"TBM challenges in deep and complex tectonic environments
– the devil is in the details"


The Conference provides an excellent opportunity for sharing knowledge through presentations. The Conference plans to accept submittals for oral presentation and for poster presentation. Please refer to the schedule presented below for information relating to important dates for the submittal and review process.

An abstract for each presentation, either oral or poster, must be submitted for review and acceptance. All abstracts and manuscripts shall be submitted to the Conference staff via the submission form below. The abstracts are limited to 300 words and, after acceptance, the manuscripts will be limited to 2 to 6 pages.

Who should attend?

Those involved with the use of tunnel boring machines in difficult ground comprise a diverse community, including academic researchers, industrial scientists and engineers, government scientists, and policy makers. All are welcome to this conference, ranging from those just beginning to those with substantial expertise.


TBM DiGs 2022 will be an exciting conference that will provide the opportunity for participants to meet others in the field, to exchange ideas, expertise and experience, and to renew and form new friendships and working relationships. The conference is structured so that participants can learn from both formal and informal interactions, such as presented papers, posters and social events.

Conference Timeline and important dates

15.11.2021:     Deadline for abstract submission

15.06.2022:     Deadline for full paper submission

01.05.2022:     Early bird registration opens

15.08.2022      Early bird registration ends

18.11.2022      End of regular registration


23.11.2022      09:00   Technical session starts

23.11.2022      19:00  Conference Dinner

24.11.2022      16:45   TBM DiGs ends

25.11.2022       08:00   Site visit to a tunnel construction site in Austria


Organisation Committee

Univ.Prof. Dipl.Ing. Dr. mont. Robert Galler

Head of Chair of Subsurface Engineering


+43 3842 402 3400

Ass.Prof. Dr. Marlène Villeneuve


+43 3842 402 3412

Priv.Doz. Ass.Prof. Dr.mont. Nina Gegenhuber


+43 3842 402 3407

Christine Santos Martinez

+43 662 875519

International Scientific Committee

Name                                Country

Georg Anagnostou         Switzerland

Lars Babendererde         Germany

Cemal Balci                      Turkey

Nick Barton                      Norway

Gianpino Bianchi             Italy

Nuh Bilgin                         Turkey

Jens Classen                   Germany

Knut Garshol                    Sweden

Jafar Hassanpour           Iran

Tom Iseley                       USA

Lars Langmaack            Germany

Sindre Log                       Norway

Ulrich Maidl                    Germany

Daniele Martinelli           Italy

Priscilla Nelson              USA

Bjorn Nilsen                    Norway

Daniele Peila                   Italy

Peter Raleigh                  USA

Jamal Rostami               USA

Franz Sempelmann        Austria

Giovanni Spagnoli          Germany

Gary Tang                        New Zealand

Markus Thewes             Germany

Kurosch Thuro               Germany

Dujuan Wang                  China

Jenny Yan                       China

Jian Zhao                        Australia


The 5th International Conference on Tunnel Boring Machines in Difficult Ground (TBM DiGs 2022) will be held at the Montanuniversität Leoben, Austria.