| 超千米井简深部揭煤防突技术 |
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| 引用本文： | 李春常. 超千米井简深部揭煤防突技术[J]. 中州煤炭, 2011, 0(4) |
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| 作者姓名： | 李春常 |
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| 作者单位： | 河南煤业化工集团鹤煤公司三矿,河南鹤壁,458020 |
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| 摘 要： | 鹤煤公司三矿新副井揭煤深度954.20 m,揭煤区域位于背斜轴部,开采情况表明背斜轴部瓦斯涌出量明显大于两翼,瓦斯涌出量沿远离背斜轴部方向大致呈线形关系递减.由于情况特殊,对揭煤区域瓦斯抽放进行了设计研究,根据突出煤层瓦斯抽放要求,确定采用区域瓦斯抽放和局部瓦斯抽放的防突措施,为提高抽放效果,采取深孔预裂爆破增加煤层透气性.采取上述措施后,经效果检验与区域验证,揭煤区域达到了消突标准.
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| 关 键 词： | 千米井筒 抽放钻孔 深孔爆破 效果检验 |
Coal and Gas Outburst Prevention Technology of Uncovering Coal in Deep Ultra 1 000 m Shaft |
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| Li Chunehang. Coal and Gas Outburst Prevention Technology of Uncovering Coal in Deep Ultra 1 000 m Shaft[J]. Zhongzhou Coal, 2011, 0(4) |
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| Authors: | Li Chunehang |
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| Affiliation: | Li Chunchang(No.3 Mine,Hebi Coal Industry Co.,Henan Coal and Chemistry Industry Group Co.,Ltd.,Hebi 458020,China) |
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| Abstract: | The depth of new auxiliary shaft of No.3 Mine in Hebi Coal Industry Co.,is 954.20 m,the uncovered coal region lies on the anticline axis.Mining situation shows that,the gas emission of anticline axis position is larger than both sides of anticline axis,and the gas emission shows a decreasing linear relationship with the distance from the anticline axis.Based on the special circumstances,coordinate design and study on gas drainage were adopted in uncovering coal regions.According to the gas drainage requirem... |
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| Keywords: | 1 000 m shaft gas drainage drillhole deep hole blasting effect test |
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