我队的坑探生产水平在去年大跃进的基础上,今年又有了更大的跃进,上半年掘进工效較去年同期提高了52％,为加快勘探工作速度,滿足矿山生产的需要,八月份在两个新开坑道組織了独头坑道的快速掘进,其中21坑在8份月进170公尺,22坑月进155.7公尺,九月份21坑又月进了184.3米,加快了掘进速度降低了单位成本。现将九月份21坑月进184.3米的基本情况及其经验总結介紹如下: On the basis of the Great Leap Forward last year, our team made a further leap forward this year. In the first half of this year, the work efficiency of excavation increased by 52% over the same period of last year. In order to speed up the exploration and meet the needs of mine production, August In two newly opened tunnels, rapid tunneling of single-headed tunnels was organized. Among them, 21 pit went 170 meters in 8 months, 155.7 meters in 22 pitches and 184.3 meters in September, accelerating the speed of tunneling Reduce the unit cost. Now in September 21 pit into the 184.3 meters into the basic situation and its experience are summarized as follows: