Application of Roof Cutting and Pressure Relief Technology by Dense Small drilling holes in 108 Working Face of Dangjiahe Coal Mine

Modern Mining ›› 2020, Vol. 36 ›› Issue (12): 199-.

Application of Roof Cutting and Pressure Relief Technology by Dense Small drilling holes in 108 Working Face of Dangjiahe Coal Mine

QIN Yucheng WANG Hongyue

Online:2020-12-25 Published:2021-10-06

Abstract

QIN Yucheng WANG Hongyue. Application of Roof Cutting and Pressure Relief Technology by Dense Small drilling holes in 108 Working Face of Dangjiahe Coal Mine[J]. Modern Mining, 2020, 36(12): 199-.

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Application of Roof Cutting and Pressure Relief Technology by Dense Small drilling holes in 108 Working Face of Dangjiahe Coal Mine

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