深部煤层巷道预应力锚杆-锚索支护协调性数值模拟研究

he supoort effection of gate way in deep roadways is determined by bolt-anchor's coordination.With engineering geological characteristics of Pingmei AG 11th Coal Mine,numerical simulation for different schemes of bolt-anchor are carried out by ANSYS,reasonable parametres will be found.Support to achieve the best results.Finally,The effection of bolt and anchor's pretention and inter-row to roadway's stability is discussed.we have an exclusion:With the bolt's pretention is increased,the deformation of each part is decreased,also,the deformation of each part have a linear relation with bolt's pretention.With the anchor's pretention is increased,the deformation of roof is decreased, other part of roadway is increased,also,the deformation of each part have a linear relation with anchor's pretenton.With bolt's inter-low is increased, deformation of bottom is increased firstly,later,decreased,other part is increased,the deformation of each part have a parabola relation with anchor's pretention.