Experimental Study of Forces Induced in Mechanical Excavation of Rock

John Pultorak, Dmitry Drozdov, Jia Liang Le, Emmanuel Detournay

Research output: Contribution to journalConference articlepeer-review


This paper presents preliminary results of an experimental campaign aimed at mapping the dependence of the cutting force on the depth of cut in scratch tests performed with a sharp cutter. Tests conducted in Berea sandstone and Indiana limestone confirm that the scaling of the force with the depth of cut depends on the cutting regime. They also show a dependence of the nature of the frequency distribution of the cutting force on the modes of failure.

Original languageEnglish (US)
Pages (from-to)156-162
Number of pages7
JournalGeotechnical Special Publication
Issue numberGSP 321
StatePublished - 2020
EventGeo-Congress 2020: University of Minnesota 68th Annual Geotechnical Engineering Conference - Minneapolis, United States
Duration: Feb 25 2020Feb 28 2020

Bibliographical note

Funding Information:
The authors gratefully acknowledge support from the National Science Foundation under Grant No. 1742823. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the NSF.

Publisher Copyright:
© 2020 American Society of Civil Engineers.


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