Characteristics of the stage collapse mining method
It is a kind of bottom column caving method and has the common feature of the bottom column caving method. The stage caving method is to recover at the full height of the stage. It no longer divides the segments, but uses all stages as a nugget to mine. It uses a deep-hole blasting method to break the ore at all stages. It is a single-step continuous recovery, and a sufficient volume of compensation space must be drilled before the collapse.
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