掘进巷道锚杆支护参数研究

Study on Bolt Support Parameters of Roadway Excavation

为了保证巷道围岩的稳定性且能达到快速掘进的目的,以李雅庄矿6071工作面为研究对象,通过数值模拟手段,建立计算模型,采用锚杆(索)单元模拟锚杆(索),分析不同锚杆长度和不同锚杆间距时的预应力场的分布特征。

In order to guarantee the stability of surrounding rock and achieve quick excavation of the roadway.6071 working face of Liyazhuang coal mine was taken the research object,by means of numerical simulation,the calculation model was built with aid of the anchor rod（rope） units,and prestress field distribution under different anchor length and spacing was analysed.