“三软”煤层沿空留巷技术的应用

The successful technological application of leaving road along goaf in “three soft” seam

在“三软”煤层工作面运输机巷试验沿空留巷技术 ,实践表明 ,采用锚杆 (索 )网梁联合支护和人工构筑煤垛、工字钢点柱和走向双排挑棚 ,有利于沿空留巷顶板稳定和下区段回收材料 ,取得了明显的经济和社会效益。

Testing the technology of leaving road along the goaf at “three soft'coal seam face in conveyor road proved that adopting the combining supporting technology with bolt and wire mesh,artificial structural coal wall,I-steel pole and the double ranks canopies are benifical to roof steady and recover materials.It has obtained obvious economic and social benefit.