To address the frequent occurrence of roof caving,severe over-excavation,and significant ore loss in a mine stope,combined with the limited operating space due to extremely thin ore veins,a bolt+double reinforcing bar support technology is proposed.The essence lies in the timeliness and flexibility of double reinforcing bar support,which allows the entire row of bolt groups to act collectively under the action of the support board during the support process,thereby stabilizing critical rock blocks that may cave in.This support scheme effectively solves the problem of supporting extremely thin ore veins,improves stope safety,and reduces ore dilution,thus enhancing the economic bene-fits of the mine.
关键词
急倾斜/极薄矿脉/破碎软岩/围岩支护/锚杆/双筋条
Key words
steeply inclined/extremely thin ore vein/broken soft rock/surrounding rock support/bolt/double rein-forcing bar
维普
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