| 潘三矿13-1煤层水力冲孔试验研究 |
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| 引用本文： | 王新新,夏仕柏,石必明,穆朝民.潘三矿13-1煤层水力冲孔试验研究[J].煤炭科学技术,2011,39(4):60-64. |
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| 作者姓名： | 王新新 夏仕柏 石必明 穆朝民 |
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| 作者单位： | 1. 安徽理工大学,能源与安全学院,安徽,淮南,232001
2. 淮南矿业(集团)有限责任公司,煤矿安全开采管理研究总院,安徽,淮南,232001 |
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| 摘 要： | 为考察潘三矿13-1突出煤层水力冲孔技术措施的消突效果,基于13-1煤层的赋存条件,介绍了潘三矿-650 m东四运输大巷利用穿层钻孔进行水力冲孔试验的过程,研究了水力冲孔的冲出煤量、风流中瓦斯浓度、考察孔瓦斯流量、瓦斯抽采半径和冲孔前后瓦斯抽采流量变化等5个方面。结果表明:在单孔每米冲出煤量达到2.0~3.0 t时,13-1煤层瓦斯抽采半径达到4.5 m,考察孔瓦斯流量为冲孔前的10倍以上,瓦斯流量衰减系数仅为冲孔前的30%,在冲孔控制区域内煤体得到卸压,煤层瓦斯含量降低了近70%,释放了煤层的突出潜能,取得了明显的卸压增透效果。
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| 关 键 词： | 突出煤层 穿层钻孔 水力冲孔 卸压增透 瓦斯抽采半径 |
Experiment Research on Hydraulic Borehole Flushing in No.13-1 Seam of Pansan Mine |
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| WANG Xin-xin,XIA Shi-bai,SHI Bi-ming,MU Chao-min.Experiment Research on Hydraulic Borehole Flushing in No.13-1 Seam of Pansan Mine[J].Coal Science and Technology,2011,39(4):60-64. |
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| Authors: | WANG Xin-xin XIA Shi-bai SHI Bi-ming MU Chao-min |
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| Affiliation: | WANG Xin-xin1,XIA Shi-bai2,SHI Bi-ming1,MU Chao-min1(1.School of Energy and Safety,Anhui University of Science and Technology,Huainan 232001,China,2.Mine Safety and Mining Management Research Institute,Huainan Coal Mining Group Corporation Ltd.,China) |
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| Abstract: | In order to investigate the outburst elimination effect of the technical measures for the hydraulic borehole flushing in No.13-1 outburst seam of Pansan Mine,based on No.13-1 seam deposit conditions,the paper introduced the hydraulic borehole flushing trial with the borehole drilling through strata in-650 m East No.4 transportation roadway of Pansan Mine.The paper had a study on the coal cutting quantity from the hydraulic borehole flushing,the gas content of the air flow,the gas flow in the chock borehole,... |
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| Keywords: | outburst seam borehole drilling through strata hydraulic borehole flushing pressure releasing and permeability improvement gas drainage radius |
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