| 深孔预裂爆破技术在综放工作面的应用 |
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| 引用本文： | 孙长青.深孔预裂爆破技术在综放工作面的应用[J].煤炭技术,2008,27(10). |
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| 作者姓名： | 孙长青 |
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| 作者单位： | 义马煤业集团公司孟津煤矿,河南,孟津,471142 |
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| 摘 要： | 通过采用深孔预裂爆破技术,提高了工作面单产和回采率,解决了巨厚煤层综放工作面因为煤质硬及夹矸导致顶煤难放回采率低的问题,为工作面高产、高效创造了良好条件。
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| 关 键 词： | 深孔预裂爆破技术 综放工作面 回采率 |
Application of Deep-hole and Pre-shear Blasting Technology at Fully Mechanized Face with Caving of Roof Coal |
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| SUN Chang-qing.Application of Deep-hole and Pre-shear Blasting Technology at Fully Mechanized Face with Caving of Roof Coal[J].Coal Technology,2008,27(10). |
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| Authors: | SUN Chang-qing |
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| Abstract: | Through adopting the deep-hole and pre-shear blasting technology,the per unit yield of working face and extraction rate are raised,the problems of difficult caving of roof coal and low extraction rate caused by coal hard and inserting gangue at the fully mechanized face with caving of roof coal in the huge thick coal seam are solved.The good conditions are created for the high production and high efficiency of the working face. |
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| Keywords: | deep-hole and pre-shear blasting technology fully mechanized face with caving of roof coal mining recovery |
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