PLATINUM GROUP METALS LTD
For the period ended Aug 31, 2024. Filed Oct 9, 2024.
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Aug 31, 2024 · Filed Oct 9, 2024
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EX-99.1 · Case
Case 3
Secondary stopes that will not be mined beneath or beside require only enough strength to be self-supporting and to provide a working base for an LHD or a longhole drill when mining the next stope above.
The design parameters for Case 3 backfill strength are summarized in Table 16-58. The secondary stopes will be capped with a layer of higher strength backfill.
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