岳南煤业南翼回风大巷支护技术与实践

Yuenan Mining Industry South Wing Return Airway Supporting Technology and Practice

岳南煤业将南翼回风大巷地质条件与自然平衡拱理论结合,运用理论计算得出锚杆的主要支护参数,提出南翼回风大巷的支护设计方案,并设置监测点进行现场监测,结果表明顶底板移近量稳定在140 mm,两帮移近量稳定在150 mm,取得了较好的支护效果,实现了较好的技术和经济效益。

Combined Yuenan Mining Industry south wing return airway geological conditions with natural balance arch theory, the main anchor supporting parameters were got through theoretical calculation, south wing return airway supporting design scheme was put forward, monitoring point was set up to conduct field monitoring, the result showed that while bottom floor close quantity was 140 mm, and two rib sides close quantity 150 mm, which got good support effect and realized good technical and economic benefits.