Certificate In Strata Control - Metalliferous Exam Practice Questions - Certificate In Strata Control - Metalliferous (South Africa) Exam

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What is a major strata control benefit of placing cemented classified tailings backfill in deep narrow-vein tabular stopes?

It reduces total regional stope closure and Energy Release Rate (ERR), lowering overall rockburst risk It completely eliminates the need for any face area support or tendon installation It increases the stress concentration at the immediate stope face area to enhance rock breaking It acts as a rigid non-compressible pillar with zero volume change under deep overburden pressure

Correct Answer:

It reduces total regional stope closure and Energy Release Rate (ERR), lowering overall rockburst risk

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