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以巷道围岩应力场为零为基础,采用FLAC3D模拟手段,模拟支护参数对预应力场的影响,支护参数主要包括锚杆长度、锚杆间距、锚杆安装角度、锚固方式和锚杆预应力。并以模拟结果和实践为基础,提出该六要素在选择过程中应考虑的因素及重要性。
Based on the zero stress field of roadway surrounding rock, the influence of supporting parameters on the prestressing field was simulated by using FLAC3D simulation method. The supporting parameters mainly included length of anchor rod, spacing of anchor rod, anchor installation angle, anchorage method and anchor rod Prestressing. Based on the simulation results and practice, the factors and importance of these six factors should be considered in the selection process.