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检索条件"主题词=Hard thick coal seam"
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Application of deep borehole blasting on fully mechanized hard top-coal pre-splitting and gas extraction in the special thick seam
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International Journal of Mining Science and Technology 2015年 第5期25卷 755-760页
作者: Liu Jian Liu Zegong Xue Junhua Gao Kui Zhou Wei State Key Laboratory of Deep coal Mining & Environmental Protection School of Energy and Safety Anhui University of Science & Technology Key Laboratory of Safety and High-efficiency coal Mining Ministry of EducationAnhui University of Science & Technology
In order to solve the problems of top-coal inadequate destruction and large amounts of gas emission in mining extra thick and hard coal seam,this study investigated the pre-splitting for deep borehole blasting and gas... 详细信息
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