锚网索钢筋梯联合支护在大断面煤巷中的应用

Application of Combined Support with Bolt-mesh-anchor and reinforced-steel ladder in Driving Large Cross-section Roadway

针对锚网索架36U支护成本高的情况,寻求在保证安全的前提下降低支护成本的支护方式。在常村煤矿23区回风巷,通过分析巷道应力分布情况,并确定了锚网索钢筋梯复合支护方案、技术参数和施工方法,通过改进施工工艺和强化工程质量管理,有效地控制了巷道变形,取得了良好的支护效果。

Aiming at the high cost of 36Usupport with bolt-mesh-anchor,the authors analyze the roadway stress distribution and determine the scheme,technological parameter and construction method of combined support with bolt-mesh-anchor and reinforced-steel ladder in ventilation roadway of 23district in Changcun Colliery,which has effectively control the roadway deformation with good support effect.