| 水力冲孔消突措施试验研究 |
| |
| 引用本文： | 刘英振,魏建平,刘彦伟.水力冲孔消突措施试验研究[J].煤炭科学技术,2011,39(3):67-70,86. |
| |
| 作者姓名： | 刘英振 魏建平 刘彦伟 |
| |
| 作者单位： | 河南理工大学瓦斯地质与瓦斯治理重点实验室,河南焦作,454000 |
| |
| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目，"十一五"国家科技支撑计划资助项目，教育部"瓦斯预测与治理"创新团队发展计划资助项目 |
| |
| 摘 要： | 针对淮南矿区埋深大、透气性低及高地应力的煤层赋存状态,为了解决石门揭煤过程中的煤与瓦斯突出问题,在谢桥等5个矿试验了水力冲孔技术,通过排出部分煤体和瓦斯,对煤体增透卸压,从而实现快速、安全的揭煤。研制了水力冲孔专用PZCK-C-*系列喷头,优化了水力冲孔工艺和技术参数,模拟对比了冲孔前后钻孔周围的应力变化。试验结果表明,在钻孔冲出煤量达到1.0～2.5 t/m时,其冲孔影响半径可以达到5.5～9.0 m,煤层透气性系数增大了70%～370%,实施水力冲孔后,冲孔控制区域的煤体得到卸压,透气性增大,突出潜能和瓦斯热力学能得到释放,快速消除了石门揭煤工作面的突出危险性。
|
| 关 键 词： | 水力冲孔 石门揭煤 快速消突 卸压增透 消突效果 冲孔工艺 |
Experiment Study on Outburst Control Measures with Hydraulic Borehole Flushing |
| |
| LIU Ying-zhen,WEI Jian-ping,LIU Yan-wei.Experiment Study on Outburst Control Measures with Hydraulic Borehole Flushing[J].Coal Science and Technology,2011,39(3):67-70,86. |
| |
| Authors: | LIU Ying-zhen WEI Jian-ping LIU Yan-wei |
| |
| Affiliation: | LIU Ying-zhen,WEI Jian-ping,LIU Yan-wei(Key Lab of Gas Geology and Gas Control,Henan Polytechnic University,Jiaozuo 454000,China) |
| |
| Abstract: | According to the seam deposit conditions of the deep depth,low permeability and high ground stress in Huainan Mining Area,in order to solve the coal and gas outburst problems occurred during the cross-cut seam opening process,the hydraulic borehole flushing technology was tested in Xieqiao Mine and other five mines.With partial coal and gas released,the penetration improvement and the pressure releasing of the seam could have a rapid and safety seam opening.A special PZCK-C-* series nozzle was researched an... |
| |
| Keywords: | hydraulic borehole flushing seam opening of crosscut rapid outburst control pressure releasing and improved penetration outburst control effect borehole flushing technique |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
