| 周汝洪.新庄孜矿B8保护层开采对B6煤效果考察实践分析[J].安徽建筑大学学报,2017,25(1):24-28 |
| 新庄孜矿B8保护层开采对B6煤效果考察实践分析 |
| Analysis B8 protective layer mining effect on B6 coal of inspection practice in Xinzhuangzi mine |
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| DOI：10.11921/j.issn.2095-8382.20170106 |
| 中文关键词: 煤层群 保护层开采 瓦斯压力 煤层变形 瓦斯抽采 |
| 英文关键词: coal seams group protective layer mining gas pressure coal seam deformation the gas extraction |
| 基金项目:/ |
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| 摘要点击次数: 7275 |
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| 中文摘要: |
| 以突出矿井新庄孜矿为例，介绍了煤层群开采首采保护层卸压瓦斯抽采工程设计及被保护层瓦斯抽采效果。通过在66208工作面回采过程中瓦斯压力测定、瓦斯抽采效果和煤层最大变形量的考察，得出保护层工作面开采后，被保护层B6煤层透气性系数增大了902倍，B6煤层残余瓦斯含量为2.43m3/t；得出实际走向及倾向方向上的有效保护范围。最大化的回收煤炭资源，取得了较好的效果。 |
| 英文摘要: |
| With Xinzhuagzi mine as an example，the author introduces engineering design of relief gas extraction in the protective layer mining first and extracting effect in protected layer during multi-seam mining。By inspection gas pressure determination and the gas extraction effect and the maximum deformation of coal seam in the process of 66208 mining face，Protective face after mining，conclusion on Be protective B6 coal seam permeability coefficient increased 902 times，B6 residual gas content of coal seam is 2.43 m3 / t；Conclusion on the practical effective protection scope and tendency direction。 Maximize to the recovery of coal resources,Good results have been achieved。 |
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