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冲击地压煤层大直径卸压孔快速成孔关键技术

魏宏超 王毅 王博

魏宏超, 王毅, 王博. 冲击地压煤层大直径卸压孔快速成孔关键技术[J]. 煤田地质与勘探, 2020, 48(2): 20-24. doi: 10.3969/j.issn.1001-1986.2020.02.004
引用本文: 魏宏超, 王毅, 王博. 冲击地压煤层大直径卸压孔快速成孔关键技术[J]. 煤田地质与勘探, 2020, 48(2): 20-24. doi: 10.3969/j.issn.1001-1986.2020.02.004
WEI Hongchao, WANG Yi, WANG Bo. Key technology for rapidly drilling large diameter destressing-drillhole in rockburst coal seam[J]. COAL GEOLOGY & EXPLORATION, 2020, 48(2): 20-24. doi: 10.3969/j.issn.1001-1986.2020.02.004
Citation: WEI Hongchao, WANG Yi, WANG Bo. Key technology for rapidly drilling large diameter destressing-drillhole in rockburst coal seam[J]. COAL GEOLOGY & EXPLORATION, 2020, 48(2): 20-24. doi: 10.3969/j.issn.1001-1986.2020.02.004

冲击地压煤层大直径卸压孔快速成孔关键技术

doi: 10.3969/j.issn.1001-1986.2020.02.004
基金项目: 

国家科技重大专项任务(2016ZX05045-003-002);中煤科工集团西安研究院有限公司科技创新基金项目(2016XAYMS23)

详细信息
    第一作者:

    魏宏超,1984年生,男,河北唐山人,博士研究生,副研究员,从事煤矿井下钻探技术研究与推广.E-mail:weihongchao@cctegxian.com

  • 中图分类号: TD15

Key technology for rapidly drilling large diameter destressing-drillhole in rockburst coal seam

Funds: 

National Science and Technology Major Project(2016ZX05045-003-002)

  • 摘要: 为了提高冲击地压矿井大直径卸压钻孔的成孔率和施工效率,通过对冲击地压矿井煤岩体应力特征、卸压孔孔壁扰动动力失稳特性及施工特点的分析,探讨了大直径卸压孔快速施工的关键点在于高效排渣、快速成孔提钻。采用具有1.25 m行程轨道、大通孔动力头的ZDY4000LR型钻机,优化了大直径卸压钻孔施工操作流程,形成了水介质螺旋宽翼片双动力排渣高效成孔工艺方法,并在河南义马矿区和陕西彬长矿区进行了现场试验。结果表明:该工艺技术能够安全、高效地施工大直径卸压钻孔,施工效率较大螺旋钻进技术提高了48.9%,成孔率可达到100%。研究成果对类似冲击地压矿区施工煤层卸压孔提供借鉴。

     

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出版历程
  • 收稿日期:  2019-11-11
  • 修回日期:  2020-02-24
  • 发布日期:  2020-04-25

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