大倾角孤岛综采面支架围岩稳定性控制研究 副本.pdfVIP

第30 卷 第3 期 采矿与安全工程学报 Vol.30 No.3 2013 年05 月 Journal of Mining Safety Engineering May 2013 文章编号：1673-3363-(2013)03-0343-051 大倾角孤岛综采面支架- 围岩稳定性控制研究 谢生荣，张广超，张守宝，何富连，肖殿才，田春阳 ( 中国矿业大学(北京)资源与安全工程学院，北京 100083) 摘要 针对 1523 大倾角工作面进入孤岛区后支架- 围岩事故频发的开采难题，探析了支架- 围岩事 故频发原因，采用现场测试与回归计算分析方法研究冒漏片帮与支护参数的相关性关系，并提出 了支架故障诊断、防倒防滑装置、稳定性控制指标和设备操作工艺等综合控制技术。结果表明： 采用该技术后端面顶板冒高大于0.40 m 的冒顶频率由76%减小到16%，端面煤体片深大于0.5 m 的片帮频率由72%减小到23% ，未发生恶性片帮冒顶与支架倒架现象，有效解决了大倾角孤岛面 支架- 围岩失稳的控制难题。 关键词 大倾角孤岛面；片帮冒顶；故障诊断；支架- 围岩关系 中图分类号 TD 32 文献标志码 A Stability control of support-surrounding rock in the large inclination fully mechanized island face XIE Sheng-rong ，ZHANG Guang-chao ，ZHANG Shou-bao ，HE Fu-lian ， XIAO Dian-cai ，TIAN Chun-yang (College of Resource and Safety Engineering，China University of Mining Technology，Beijing 100083 ，China) Abstract In allusion to the problem of support–surrounding rock accidents when No.1523 fully mechanized face with large inclination advanced to the island district, we analyzed the cause of the ac- cident. The relative relationship between roof fall and rib spalling and support parameters was studied by spot testing and regression analysis. Then the synthetical control technology including fault diagnose, device for anti-falling and anti-slipping, stability control indices, equipment operation process and so on was put forward. Result shows that the frequency of roof fall height over 0.40 m decreased from 76% to 16%, and the frequency of rib spalling over 0.50 m decreased from 72% to 23% after the technology was applied in coal face of No.1523. So no serious accidents of rib spalling and roof fall occured, the