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Details van artikel 4 van 8 gevonden artikelen
| Titel: |
Damage to underground coal mines caused by surface blasting |
| Auteur: |
Fourie, A.B. Green, R.W. |
| Verschenen in: |
International journal of mining, reclamation and environment |
| Paginering: | Jaargang 7 (1993) nr. 1 pagina's 11-16 |
| Jaar: |
1993 |
| Inhoud: |
An investigation of the potential damage to underground coal workings as a result of surface blasting is described. Seismometers were installed in a worked out area of an underground mine, and the vibrations caused by nearby surface blasting recorded. These measurements were used to derive peak particle velocities. These velocities were correlated with observed damage underground in order to establish the allowable combinations of the two blasting parameters of charge mass per relay, and blast-to-gage point distance. An upper limit of 110mm/sec peak particle velocity was found to be sufficient to ensure that the damage to the particular workings under consideration was minimal. It was further found that a cube-root scaling law provided a better fit to the field data than the more common square-root law. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 4 van 8 gevonden artikelen
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