摘要
根据大安山矿现场试验,结合巷道地质条件,选择"锚杆+长锚索支护"方式进行工业试验,通过监测支护4个不同巷道位置处围岩表面位移和锚杆、锚索的锚固力,可以发现巷道变形经历25 d基本趋于平稳,锚固力在支护后30 d达到稳定的数值,但未达到设计锚固力值,监测结果验证了支护方案的安全可行性。
Based on the experiment on site of Da＇anshan Mine,combined with geological conditions,anchor bolt ＋ long anchor rope was adopted to conduct the industrial experiment,by monitoring surrounding rock surface displacement and the anchor strength of anchor bolt and rope of 4 different position in roadway,the roadway deformation got stable after 25 days,anchor strength achieved stable after 30 days of support,but not achieving the designed anchor strength,the monitoring result showed that the support plan was feasible.
出处
《煤炭与化工》
CAS
2015年第11期63-65,68,共4页
Coal and Chemical Industry
关键词
锚杆
长锚索
锚固力
稳定
可行性
anchor bolt
long anchor rope
anchor strength
stability
feasibility
