| 千米埋深特厚煤层井筒揭煤综合防突技术 |
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| 引用本文： | 雷文杰,薛晓晓,张瑶,孙钦昂,刘思佳.千米埋深特厚煤层井筒揭煤综合防突技术[J].煤炭科学技术,2011,39(8):50-53. |
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| 作者姓名： | 雷文杰 薛晓晓 张瑶 孙钦昂 刘思佳 |
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| 作者单位： | 贵州矿山安全科学研究院,贵州贵阳,550001 |
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| 基金项目： | 国家自然科学基金资助项目(40872191); 河南省杰出人才青年计划资助项目(104100510002) |
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| 摘 要： | 为解决千米埋深特厚煤层立井揭煤防突和穿煤施工安全,通过建立区域突出危险性预测、深孔预裂控制爆破增透抽放、效果检验和验证、中空锚杆金属骨架、远距离放炮揭煤、突出危险性预警和壁后预留排放等组成的七步法综合防突技术,从技术、施工组织、工程质量和安全防护4个环节保障施工安全。结果表明：采用深孔预裂控制爆破强化措施,抽放41 d达到区域防突要求;采用2圈中空锚杆注浆加固和壁后预留1圈排放孔等新工艺,揭煤和穿煤期间瓦斯浓度非常稳定,实现了零超限揭穿千米埋深9.8 m厚突出煤层。
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| 关 键 词： | 特厚煤层 井筒揭煤 防突 深孔预裂爆破 中空锚杆 注浆加固 |
Comprehensive Outburst Prevention Technology for Opening 1 000 m Deep Depth and Special Thick Seam in Mine Shaft |
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| LEI Wen-jie,XUE Xiao-xiao,ZHANG Yao,SUN Qin-ang,LIU Si-jia.Comprehensive Outburst Prevention Technology for Opening 1 000 m Deep Depth and Special Thick Seam in Mine Shaft[J].Coal Science and Technology,2011,39(8):50-53. |
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| Authors: | LEI Wen-jie XUE Xiao-xiao ZHANG Yao SUN Qin-ang LIU Si-jia |
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| Affiliation: | LEI Wen-jie1,2,XUE Xiao-xiao1,ZHANG Yao1,SUN Qin-ang1,LIU Si-jia1(1.Research Institute of Gas Geology,Henan Polytechnic University,Jiaozuo 454000,China,2.Guizhou Research Institute of Mine Safety Science,Guiyang 550001,China) |
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| Abstract: | In order to solve the seam opening outburst prevention and the seam passing construction safety in the mine shaft sinking with a depth of 1 000 m and ultra thick seam,with the seven step method comprehensive outburst prevention technology,including the establishing regional outburst danger prediction,the permeability improved gas drainage with deep borehole pre-crack controlled blasting,the effect inspection and verification,the middle hole bolt and metal frame,the seam opening with long distance blasting,e... |
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| Keywords: | ultra thick seam seam opening in mine shaft outburst prevention pre-fracturing blasting with deep boreholes quill bolt grouting reinforcement |
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