近几年来,我国的煤巷锚网支护技术得到飞速发展,大功率高效综采设备的引进,要求回采巷道断面加大,原有的架棚支护已无法适应高产高效放煤工作面快速推进的要求。锚网支护中突出的问题是支护速度太慢,原有的架棚支护单头进尺4 5 0m～5 5 0m左右,而锚网支护在30 0m～35 0m左右。 In recent years, the bolting and bolting technology of coal roadway has been developed rapidly in our country. The introduction of high-power and high-efficiency fully mechanized mining equipment requires that the cross-section of the mining roadway is enlarged and the original shelter support can not meet the requirement of high productivity and high efficiency caving face Promote the request. The outstanding problem in bolting support is that the support speed is too slow. The original single-head support of frame support is about 450m to 550m, while the anchor net support is about 30o to 35m.