The implementation and quantification of the Vallejos and McKinnon re-entry methodology

Izak Gerhardus Morkel, Paolo Rossi-Rivera

Research output: Chapter in Book/Conference paperConference paper

Abstract

The occurrence of seismicity in high stress hard rock mines poses a challenge to geotechnical engineers and mine management around the world. Only a few practical options are available when the mitigation of seismic risk is considered. One of the most widely used options is the implementation of a reentry protocol. These protocols are useful at limiting personnel exposure to elevated seismic hazard associated with the occurrence of a firing. There are several methodologies available for determining an appropriate reentry time. The success rate of these methods varies between sites. Recent work by Vallejos and McKinnon (2010) suggest a new approach to the reentry problem. They provide methodology that could be implemented on any mine site with a seismic system. The method evaluates the current response in terms of the statistical properties of the rock mass based on historic responses. Discussions on the practical implementation of the method on a site-wide basis were limited, and did not provide an indication of what could quantitatively be expected from the method. The Vallejos and McKinnon method could be automated and practically implemented on most mine sites with a comprehensive seismic data record. It was shown the methodology, in some cases, may be an improvement on the widely used ‘blanket’ rule implemented on many mine sites.
Original languageEnglish
Title of host publicationDeep Mining 2017
Subtitle of host publicationProceedings of the Eighth International Conference on Deep and High Stress Mining
EditorsJohan Wesseloo
Place of PublicationPerth, Australia
PublisherAustralian Centre for Geomechanics
Pages173-181
ISBN (Print)9780992481063
Publication statusPublished - 28 Mar 2017
Event8th International Conference on Deep and High Stress Mining - Perth, Australia
Duration: 28 Mar 201730 Mar 2017

Conference

Conference8th International Conference on Deep and High Stress Mining
CountryAustralia
CityPerth
Period28/03/1730/03/17

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methodology
hard rock
seismic hazard
seismicity
seismic data
mitigation
method
rock
protocol

Cite this

Morkel, I. G., & Rossi-Rivera, P. (2017). The implementation and quantification of the Vallejos and McKinnon re-entry methodology. In J. Wesseloo (Ed.), Deep Mining 2017: Proceedings of the Eighth International Conference on Deep and High Stress Mining (pp. 173-181). Perth, Australia: Australian Centre for Geomechanics.
Morkel, Izak Gerhardus ; Rossi-Rivera, Paolo. / The implementation and quantification of the Vallejos and McKinnon re-entry methodology. Deep Mining 2017: Proceedings of the Eighth International Conference on Deep and High Stress Mining. editor / Johan Wesseloo. Perth, Australia : Australian Centre for Geomechanics, 2017. pp. 173-181
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Morkel, IG & Rossi-Rivera, P 2017, The implementation and quantification of the Vallejos and McKinnon re-entry methodology. in J Wesseloo (ed.), Deep Mining 2017: Proceedings of the Eighth International Conference on Deep and High Stress Mining. Australian Centre for Geomechanics, Perth, Australia, pp. 173-181, 8th International Conference on Deep and High Stress Mining, Perth, Australia, 28/03/17.

The implementation and quantification of the Vallejos and McKinnon re-entry methodology. / Morkel, Izak Gerhardus; Rossi-Rivera, Paolo.

Deep Mining 2017: Proceedings of the Eighth International Conference on Deep and High Stress Mining. ed. / Johan Wesseloo. Perth, Australia : Australian Centre for Geomechanics, 2017. p. 173-181.

Research output: Chapter in Book/Conference paperConference paper

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Morkel IG, Rossi-Rivera P. The implementation and quantification of the Vallejos and McKinnon re-entry methodology. In Wesseloo J, editor, Deep Mining 2017: Proceedings of the Eighth International Conference on Deep and High Stress Mining. Perth, Australia: Australian Centre for Geomechanics. 2017. p. 173-181