| 突出煤层快速掘进深孔预裂爆破预抽瓦斯技术 |
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| 引用本文： | 刘健,刘泽功,石必明,蔡峰.突出煤层快速掘进深孔预裂爆破预抽瓦斯技术[J].煤炭科学技术,2008,36(8). |
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| 作者姓名： | 刘健 刘泽功 石必明 蔡峰 |
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| 作者单位： | 安徽理工大学,能源与安全学院,安徽,淮南,232001;安徽理工大学,煤矿安全高效开采省部共建教育部重点实验室,安徽,淮南,232001 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，国家支撑计划，国家自然科学基金，国家自然科学基金，安徽省教育厅自然科学基金 |
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| 摘 要： | 为了解决在低透气性突出煤层巷道掘进过程中,煤层瓦斯预抽效果差,煤与瓦斯突出指标经常超限,掘进速度缓慢等问题,提出了深孔预裂爆破煤层增透、高抽巷抽放煤层瓦斯与巷帮钻孔边抽边掘相结合的综合技术.研究表明,该技术可有效地消除激发突出的应力和煤体结构的不均匀性,提高煤体强度和煤层透气性,使巷帮钻孔和高抽巷钻孔瓦斯抽放量大幅度提高,能有效预防和消除在掘进过程中煤与瓦斯突出的危险性,从而使巷道掘进速度提高.
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| 关 键 词： | 预抽瓦斯 边抽边掘 深孔预裂爆破 |
Technology of gas pre-drainage with deep borehole pre-cracking blasting for gateway rapid excavation in seam with outburst |
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| LIU Jian,LIU Ze-gong,SHI Bi-ming,CAI Feng.Technology of gas pre-drainage with deep borehole pre-cracking blasting for gateway rapid excavation in seam with outburst[J].Coal Science and Technology,2008,36(8). |
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| Authors: | LIU Jian LIU Ze-gong SHI Bi-ming CAI Feng |
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| Affiliation: | LIU Jian~(1,2) LIU Ze-gong~(1,2) SHI Bi-ming~(1,2) CAI Feng~(1,2)(1.School of Energy , Safety,Anhui University of Science , Technology,Huainan 232001,China,2.Key Lab of Mine Safety , High Efficient Mining Jointly Established by Anhui Province , the Ministry of Education,China) |
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| Abstract: | In order to solve the poor seam drainage effects,coal and gas outburst index was often over the limits,slow excavation speed and other problems in the gateway excavation in a low permeability and outburst seam,the paper provided the comprehensive technology in combined with the deep borehole pre-eracking blasting in seam to improve the permeability of the seam,seam gas drainage with a high lev- el gateway and the gateway excavation with gas drainage operation.The study showed that the technology could effec... |
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| Keywords: | gas pre-drainage gas drainage operation with the excavation operation deep borehole pre-cracking blasting |
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