摘要
王村煤矿在回采巷道掘进中一直采用"锚网+U型棚"联合支护。为了简化施工工序、提高掘进单进、降低支护成本,该矿与科研机构联合在14505轨道巷中部进行了锚网索支护实验,在保证巷道支护强度的前提下,取消巷道内的可缩性U型棚支护。实验表明,此种支护形式在王村煤矿能够有效的控制巷道两帮移近量,保证巷道有效使用断面。
The combined support of ＂anchor-mesh ＋ U-shape shed＂was always used for mining roadway excavation in Wangcun Coal Mine. In order to reduce construction process,improve advance rate of roadway driving and reduce support cost,the bolt-mesh-cable support experiment was conducted in the middle of №14505 roadway by Wangcun Coal Mine and research institution. The experiment shows that the new support form can effectively control the roadway deformation and ensure the effective cross section.
出处
《陕西煤炭》
2015年第3期110-111,99,共3页
Shaanxi Coal
关键词
锚网索
巷道支护
实践
分析
bolt-mesh-cable support
roadway support
practice
analysis
