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Keywords: steelwork
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Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-007
... steelwork and concrete lining. In the case of the "hard" option, vertical compres- sive strains of 0,3 0,35 were determined in proximity to the reef plane intersection and are thus sub - critical to the above design limit. This limit is only reached in areas 55 m above and 70 m below the reef intersection...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-020
... Characterization stope extraction Upstream Oil & Gas shaft protection backfill shaft metals & mining dislocation intersection excavation reservoir geomechanics steelwork lining closure friction angle pillar reef early shaft reef extraction Magnitude Static and Dynamic Considerations...

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