Observational studies in South African mines to mitigate seismic risks: challenges and achievements

SATREPS Team

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Mining-induced earthquakes pose a risk to workers in deep mines, while large earthquakes that occur near plate boundaries (and occasionally in stable continental regions) pose a risk to the public. A five-year Japanese–South African collaborative project’Observational studies in South African mines to mitigate seismic risks’ was concluded in 2015. Acoustic emission sensors, accelerometers, strain meters, and controlled seismic sources were installed in three deep Witwatersrand gold mines to monitor the deformation of the rock mass, the accumulation of damage during the earthquake preparation phase, and the propagation of the rupture front. A surface array of accelerometers was installed in the Far West Rand mining district. This data was integrated with measurements of stress, in-stope closure, and strong motion, as well as data recorded by the mine-wide seismic networks. New insights into the physics of earthquakes were gained, and technologies developed or adapted to assess seismic hazard and mitigate rockburst risks.

Original languageEnglish
Title of host publicationISRM AfriRock - Rock Mechanics for Africa
PublisherInternational Society for Rock Mechanics
Pages175-188
Number of pages14
ISBN (Electronic)9781920410995
Publication statusPublished - 2017
EventISRM AfriRock 2017 - Rock Mechanics for Africa - Cape Town, South Africa
Duration: 2017 Oct 32017 Oct 5

Publication series

NameISRM AfriRock - Rock Mechanics for Africa
Volume2017-October

Other

OtherISRM AfriRock 2017 - Rock Mechanics for Africa
CountrySouth Africa
CityCape Town
Period17/10/317/10/5

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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