两年多来的实践证明,一次成巷的施工方法是多快好省建设井巷工程的重要手段。早在1961年冬天,马万水小组就听说在煤矿系统里有一次成巷的施工方法,这种方法一次就把永久支护、水沟、轨道等六、七道工序作成了,巷道属上就能投入使用,既安全,又干净。他们想想自己过去搞快速掘进,每月的进尺指标到是很高,但是后面的支护等等永久设施拉下很长一段距离,投入不了生产;在拆除临时支护进行永久支护时,还常常发生冒顶事 The practice of more than two years has proved that the construction method of a lane is an important means of building a laneway project. As early as the winter of 1961, the Ma Wanshui team heard that there was a construction method for a lane in a coal mine system. This method once created six or seven steps of permanent support, ditch, and track, and the roadway was Can be put into use, safe and clean. They think about how fast they used to drive in the past. The monthly footage is very high, but the permanent facilities such as the back support are pulled down for a long distance and cannot be put into production; when the temporary support is removed for permanent support, Also often happens