Influence of rock's structure at grain-scale on rockburst proneness

Angelika Klammer*, Lukas Gottsbacher, Joshua Biermann, Fritz Zobl, Robert Marschallinger, Peter Hofmann, Thomas Marcher, Wulf Schubert

*Corresponding author for this work

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

Abstract

As projects advance to deeper areas, rockbursts occur more frequently. This failure mode is particularly problematic, as the rock mass fails abruptly, releasing high amounts of energy, endangering the life of workers and damaging equipment. The hazard mode is highly influenced by the grain-level structure of the rock. The authors demonstrate this by comparing the grain-level structure of different rocks to their failure mechanism. For this an extensive laboratory program was performed, including uniaxial compression tests (incl. post-failure tests to evaluate the failure energy), acoustic emission testing (to monitor the cracking activity) and Object Based Image Analysis (OBIA) to analyze rock's structure at grain scale using thin sections taken before and after the compression test. The results allow a better understanding of the underlying mechanism and emphasize the usefulness of petrographic information within rockburst risk analysis.
Original languageEnglish
Title of host publication2021 ISRM International Symposium on Mechanics and Rock Engineering from Theory to Practice: EUROCK 2021
DOIs
Publication statusPublished - 6 Sep 2021
Event2021 ISRM International Symposium on Mechanics and Rock Engineering from Theory to Practice: EUROCK 2021 - Virtuell, Italy
Duration: 20 Sep 202125 Sep 2021

Publication series

NameIOP Conference Series: Earth and Environmental Science
PublisherIOP Publishing Ltd
Number1
Volume833
ISSN (Electronic)1755-1307

Conference

Conference2021 ISRM International Symposium on Mechanics and Rock Engineering from Theory to Practice
Abbreviated titleEUROCK 2021
Country/TerritoryItaly
CityVirtuell
Period20/09/2125/09/21
OtherEUROCK TORINO 2021 - European Rock Mechanics Symposium

ASJC Scopus subject areas

  • Civil and Structural Engineering

Fingerprint

Dive into the research topics of 'Influence of rock's structure at grain-scale on rockburst proneness'. Together they form a unique fingerprint.

Cite this