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Determination of the in situ modulus of the rockmass by the use of backfill measurements

Author: Gurtunca, RG ; Adams, DJ Date: Mar 1991 In situ measurements and numerical modelling based on elastic theory showed that backfill stresses are considerably higher than originally thought. This has led to a change in understanding of rockmass behaviour. After describing previous ... Read more
An evaluation of the effectiveness of backfill as regional support in reducing seismicity

Author: Hemp, DA Date: May 1992 This report is concerned with the analysis data from three sites during mining with and without backfill, in order to determine the effect that backfill on regional seismicity. Since the geology and stress fields in any two areas used for ... Read more
Ground motion studies in a backfilled stope at West Driefontein

Author: Goldbach, OD Date: Oct 1991 This report looks at the ground motion from 24 small magnitude seismic events recorded at various points inside a backfilled stope. The in-stope ground motion is compared to that recorded at an off-reef site. The seismic events are analysed ... Read more
The influence of backfill on seismicity

Author: Hemp, DA ; Goldbach, OD Date: Sep 1990 In this report the seismicity at three different sites was investigated during mining with backfilled and mining without backfill. In order to evaluate the effectiveness of backfill as regional support in reducing seismicity. The seismic ... Read more
Results of a backfill monitoring programme at Vaal Reefs 5 Shaft

Author: Squelch, AP Date: Aug 1990 This report documents the results of the in situ measurements carried out in the 68-52 stope at Vaal Reefs 5 Shaft. The in situ stress-strain behaviour of classified tailing backfill has been measured in panel P3. There is good agreement ... Read more

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Browsing by Subject "Backfills"

Browsing by Subject "Backfills"

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