煤炭工程 ›› 2014, Vol. 46 ›› Issue (1): 56-59.doi: 10.11799/ce201401018

• 生产技术 • 上一篇    下一篇

南阳矿区加长工作面安全高效回采技术

宋志荣   

  1. 山西高平科兴南阳煤业有限公司
  • 收稿日期:2013-07-03 修回日期:2013-07-29 出版日期:2014-01-10 发布日期:2014-01-10
  • 通讯作者: 宋志荣 E-mail:411424077@qq.com

The Mining Technology of Safety and efficient of Lengthened Face in NanYang Mine

  • Received:2013-07-03 Revised:2013-07-29 Online:2014-01-10 Published:2014-01-10

摘要:

为保证南阳矿区加长综放工作面的安全高效回采,综合运用矿压数据实测分析、理论分析及数值模拟等方法对工作面由150m延长至180m时支架合理支护强度、工作面矿压显现规律、临近采 空区侧巷道支护参数进行了研究分析。研究结果表明:工作面延长至180m时,支架的合理支护强度应不低于0.92MPa;超前支承压力峰值由14.89MPa增至17MPa,且应力峰值距工作面煤壁的位置延伸至前方16m,支承压力影响范围扩大到22~37m;临近采空区侧巷道应采用高强度锚杆锚索强力支护,巷帮应采用锚索补强支护。该研究成果保证了南阳矿区加长工作面的安全高效回采,对类似条件下矿井的安全开采具有重要的指导意义。

关键词: 加长工作面, 支护强度, 矿压显现, 支护参数优化

Abstract:

Abstract:To ensure the safety and efficient recovery of the lengthened in NanYang mine, the reasonable supporting strength the strata behavior regularity and the support parameter were studied and analyzed with a combination of field measurement theoretical analysis and numerical simulation methods when the working face extended to 180m from the 150m. The analysis showed that reasonable supporting strength shall not be less than 0.92MPa,the pressure peaks of abutment increased to 17MPa from 14.89MPa,the position extended to the front wall of 16m,the effects extended to 22~37m,the roadway near the gob should be strong support with high strength bolt and anchor.The research results has important guiding significance to NanYang mines and the similar condition mines.