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

*Korrespondierende/r Autor/-in für diese Arbeit

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandBegutachtung

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.
Originalspracheenglisch
Titel2021 ISRM International Symposium on Mechanics and Rock Engineering from Theory to Practice: EUROCK 2021
DOIs
PublikationsstatusVeröffentlicht - 6 Sept. 2021
Veranstaltung2021 ISRM International Symposium on Mechanics and Rock Engineering from Theory to Practice: EUROCK 2021 - Virtuell, Italien
Dauer: 20 Sept. 202125 Sept. 2021

Publikationsreihe

NameIOP Conference Series: Earth and Environmental Science
Herausgeber (Verlag)IOP Publishing Ltd
Nummer1
Band833
ISSN (elektronisch)1755-1307

Konferenz

Konferenz2021 ISRM International Symposium on Mechanics and Rock Engineering from Theory to Practice
KurztitelEUROCK 2021
Land/GebietItalien
OrtVirtuell
Zeitraum20/09/2125/09/21
AnderesEUROCK TORINO 2021 - European Rock Mechanics Symposium

ASJC Scopus subject areas

  • Tief- und Ingenieurbau

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