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Method of inducing rigidity in backfilled underground mine systems
Abstract Drilling through large cement backfilled sections of underground mines, essentially perforating these, and filling these drill holes with fresh cement or some substance that will become or is already rigid. UV,e [rd
Method of inducing rigidity in backfilled underground mine systems
Abstract Drilling through large cement backfilled sections of underground mines, essentially perforating these, and filling these drill holes with fresh cement or some substance that will become or is already rigid. UV,e [rd
Method of inducing rigidity in backfilled underground mine systems
MURDOCK PAUL (author)
2021-08-26
Patent
Electronic Resource
English
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