Performance and cutter life assessments in hard rock tunnelling

Francisco Javier Macias, Lisa Wilfing, Tobias Andersson, Kurosch Thuro, Amund Bruland

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations


Tunnel boring is shown to be a suitable technique method in hard rock tunnelling. Performance, disc cutter consumption and therefore cost are strongly influenced when using Tunnel Boring Machines (TBMs) in hard rock conditions. Furthermore, good predictions of TBM performance and cost facilitate the control of risk as well as avoiding delays and budget overruns. Good rock boreability assessments may be decisive for planning and controlling risk when extremely hard rocks are involved. An ongoing TBM project in particularly hard rock has been analyzed in terms of performances and cutter life assessments. Extensive geological back-mapping, complete rock laboratory testing and gathering of TBM data has been carried out in order to analyze and assess performance and cutter life by using the CSM, Gehring and NTNU prediction models for hard rock TBMs.

Original languageEnglish
Title of host publicationISRM Regional Symposium, EUROCK 2015
PublisherInternational Society for Rock Mechanics
Number of pages6
ISBN (Print)9783950389814
StatePublished - 2015
EventISRM Regional Symposium, EUROCK 2015 - Salzburg, Austria
Duration: 7 Oct 201510 Oct 2015

Publication series

NameISRM Regional Symposium, EUROCK 2015


ConferenceISRM Regional Symposium, EUROCK 2015


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