The Research of Trench Roof at the Bottom of Stope of Large Diameter Deep Hole Mining
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Abstract
To reduce the cost of mining, the economic and safety methods are compared according to the characteristics of large diameter deep hole mining in Zijingshan Copper Mine, and the trench roof of mediumlength hole blasting is analysed also.It is proved that the adjusted trench roof can improve the economic benefit under the promise of safety.
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