Z3301工作面回采巷道锚杆索棚联合支护效果分析

Effect Analysis of Combined Support of Bolt and Cable Shed in Z3301 Working Face Roadway

为检验锚杆索棚联合支护在隆博煤矿Z3301工作面应用效果,采用数值模拟和现场实测相结合的方法进行分析。结果表明,模拟得出锚杆索棚支护后矩形巷道变形量极小,顶底板移近量为0. 112 m,两帮移近量为0. 091 m;现场实测回采巷道顶底板移近量平均值为0. 105 m,两帮移近量平均值为0. 091 m。两种方法得出的结果一致,说明锚杆索棚联合支护能有效控制矩形巷道变形。

In order to test the application effect of bolt-cable-shed combined support in Z3301 working face of longbo coal mine,the method of combining numerical simulation and field measurement is adopted for analysis.The results show that the deformation of rectangular roadway after the support of bolt cable-roof is very small,the movement of roof and floor is 0.112 m,and the movement of two sides is 0.091 m.The field measured average of roof and floor movement of the mining roadway is 0.105 m,and the average of two sides'movement is 0.091 m.The results obtained by the two methods are consistent,indicating that the combined support of bolt,cable and roof can effectively control the deformation of rectangular roadway.