Stope ground pressure control is a key issue in an openstope mining process.
采场地压控制是空场采矿法开采工艺的关键环节。
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In open stopes the ground above the stope will support its own weight. So the stope is shaped like a series of rooms divided by walls or supported by pillars of ore.
Combining with several years experience on openstope backfill in one time, the causes of the problems were analyzed and some technique improvements were put forward.