煤炭工程 ›› 2013, Vol. 45 ›› Issue (12): 31-33.doi: doi:10.11799/ce201312012

• 施工技术 • 上一篇    下一篇

担炭沟煤矿4号煤层沿空掘巷技术研究

张玉军   

  1. 山西楼俊矿业集团
  • 收稿日期:2013-06-18 修回日期:2013-08-13 出版日期:2013-12-10 发布日期:2013-12-10
  • 通讯作者: 张玉军 E-mail:532407795@qq.com

Research on Roadway Driving Along Goaf Technology in Dantangou mine 4 cole seam

  • Received:2013-06-18 Revised:2013-08-13 Online:2013-12-10 Published:2013-12-10

摘要:

根据担炭沟煤矿浅埋煤层埋深浅、基岩薄、基载比小等特点,建立了沿空掘巷力学模型,通过对4101工作面采空区基本顶破断位置距离采空区距离和基本顶岩梁破断距的计算分析得出了实体煤上部基本顶岩梁稳定时间和合理窄煤柱的宽度。基于最佳沿空掘巷时机和窄煤柱宽度,对比分析了不同巷道围岩控制方案,得到了技术经济合理的锚杆支护参数,研究成果取得了初步成功。

关键词: 沿空掘巷, 掘巷时机, 窄煤柱宽度, 高强高预紧力

Abstract:

According to shallow buried depth, thin bedrock and small yl-load ratio features of coal seam in DanTangou coal mine, the Roadway Driving Along Goaf mechanical model was establishmented, through the 4101 goaf basic roof breaking distance from the mined-out area and its breaking distance calculation, the basic roof rock solid coal upper beam stabilization time and a reasonable narrow coal pillar width was analysis. Based on the best timing and gob narrow coal pillar width, roadway comparative analysis of different control schemes have been reasonable technical and economic parameters of bolting, research results achieved initial success.