| 放顶煤开采的步距选择 |
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| 引用本文： | 郭绍坤,赵明江,侯森.放顶煤开采的步距选择[J].江西煤炭科技,2011(4):44-46. |
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| 作者姓名： | 郭绍坤 赵明江 侯森 |
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| 作者单位： | 铁煤集团大兴煤矿,辽宁铁岭,112700 |
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| 摘 要： | 影响中厚煤层顶煤回收率的因素较多,除采矿地质条件、煤层赋存状态、支架类型外,放顶步距也十分重要。放顶步距的合理与否,直接影响顶煤回收率。放煤步距与中厚煤层松散冒落过程有关,简要分析了放顶煤步距的选择及特殊条件下的生产工艺。
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| 关 键 词： | 放顶煤开采 回采工艺 步距选择 |
Step-distance Selection in Sublevel Caving |
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| Guo Shaokun,Zhao Mingjiang,Housen.Step-distance Selection in Sublevel Caving[J].Jiangxi Coal Science & Technology,2011(4):44-46. |
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| Authors: | Guo Shaokun Zhao Mingjiang Housen |
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| Affiliation: | Guo Shaokun,Zhao Mingjiang,Housen(Daxing Colliery,Tie Mei Group Co.,Tieling,Liaoning 112700) |
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| Abstract: | In addition to geological conditions,coal seam occurrence and support patterns,caving step distance also has an influence on top coal recovery rate in medium-thick seam and has relations with the process of loosening and breakage of medium-thick coal seam.The authors make a brief analysis of rational step-distance selection and propose the production techniques under special conditions. |
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| Keywords: | sublevel caving stoping technique step distance selection |
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