平顶山一矿是一个现代化的大型矿井,原设计能力150万吨,进入八十年代年产近300万吨。随着综合采煤的不断引进,产量的不断提高,采掘失调的现象时有发生,掘进跟不上回采,采面衔接紧张,为了改变这种状况,矿领导与工程技术人员大胆在回采巷道推广试用锚杆支护。78年3月至83年6月,五年多来共打锚杆15230米。其中综采巷道9280米,炮采巷道6533米。总共节约坑木6781米~3,和木支架相比,每米成巷可节约9.65元,取得了较好的经济效果。安全上也没有发生过任何事故。实践证明,锚杆支护用于回采巷道是可行的,是支护改革方向之一。但由于原国产锚杆钻机防尘和机械性能较差,致使使用受 Pingdingshan No. 1 Mine is a modern large-scale mine with an original design capacity of 1.5 million tons and an annual output of nearly 3 million tons in the 1980s. With the continuous introduction of comprehensive mining, continuous improvement of production, mining imbalances have occurred from time to time, digging can not keep up the mining, mining face tension, in order to change the situation, mine leaders and engineering and technical personnel to boldly promote the mining roadway Trial bolt support. From March 78 to June 83, a total of 15230 meters of anchors were hit in more than five years. One fully mechanized mining road 9280 meters, artillery mining road 6533 meters. A total saving of 6781 m pit pits 3, compared with wood brackets, into the lane can save 9.65 yuan per meter, and achieved good economic results. There have been no accidents in safety. Practice has proved that the use of bolt support for roadway mining is feasible, is one of the direction of support and reform. However, due to the original domestic drilling rig dust and poor mechanical properties, resulting in the use of subject