厚煤层巷道破碎顶板支护优化应用

Optimized Application of Broken Roof Support in Thick Coal Seam Roadway

为确保厚煤层巷道破碎顶板支护效果进一步提升,提出采用锚棚支护技术。实践表明,采用优化后的支护方式后,巷道在过断层影响带破碎区域的顶板没有发生破碎;在支护优化后的14~25 d,巷道围岩在支护作用下能够达到应力平衡的状态,而顶板和两帮的变形量不断变小,继25 d之后,顶板和巷帮围岩逐渐趋于稳定。

In order to ensure the further improvement of the support effect of the broken roof of the thick coal seam roadway,the anchor shed support technology is proposed.Practice shows that after adopting the optimized support method,the roof slab of the roadway in the broken area of the over fault influence zone did not break;after 14-25 d of support optimization,the surrounding rock of the roadway could reach the state of stress balance under the action of support,while the deformation of the roof slab and the two gangs became smaller continuously,following 25 d,the roof slab and the surrounding rock of the roadway gangs gradually tended to be stable.