Applegate, John Daniel2017-03-012017-03-011991Applegate, John Daniel (1991) Rock mechanics aspects of sequential grid mining, University of the Witwatersrand, Johannesburg, <http://wiredspace.wits.ac.za/handle/10539/22127>http://hdl.handle.net/10539/22127A project report submitted to the Faculty of Engineering, University, of the Witwatersrand, Johannesburg, in partial fulfilment of the requirements for the degree of Master of Science in Engineering Johannesburg, 1991As mining proceeds deeper on Elandsrand Gold Mine scattered mining will no longer be viable due to the excessive stress levels which would occur during mining of the final remnants between raises. Longwall mining with strike stabilizing pillars would eliminate this need for remnant mining. However, since the Ventersdorp contact Reef on Elandsrand has a relatively large number of faults and dykes and highly variable grade, longwall mining would result in a excessive amount of off-reef mining and mining of unpayable reef.Online resource (180 leaves)enGold mines and mining--Research--South AfricaRock mechanics--South AfricaThesis