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我队在某（铅）锌矿区坑道施工中，遇到掘进工作面大量涌水，最大涌水量15—20吨/小时，一般为10—12吨/小时，严重阻碍平硐掘进工作进行和各项经济指标完成，特别是威胁着职工安全生产。为此，我们对矿区上述涌水情况进行了深入分析研究。由于较准确掌握岩层涌水性和炮眼涌水规律，妥善采用四种引水、防水和分次爆破措施，顺利完成182米坑道掘进任务和各项生产指标，生产效率由0.73～0.85米/台班，提高到0.93米～1米/台班，台月效率从80米/台月，提高到115米/台月，现场材料费每米57.4元，下降为51.4元，节约6元/米，共计节约材料费1092元，每米总成本为214.6元，同时，为该矿区找到累计三米多厚铅锌矿体。现简介如下：
During the tunnel construction of a (lead) zinc mine, our team encountered a large amount of gushing water in the excavation face and the maximum water inflow was 15-20 tons per hour, usually 10-12 tons per hour, which seriously hindered the tunneling work and Economic indicators completed, in particular, threaten the safety of workers. To this end, we carried out in-depth analysis of the above gushing water conditions in the mining area. Due to the accurate grasping of rock burst and gushing-out of water, the four kinds of water diversion, waterproofing and graded blasting measures were properly adopted to successfully complete the 182-m tunnel excavation task and each production index, and the production efficiency increased from 0.73 to 0.85 m / To 0.93 m ~ 1 m / Taiwan class, the Taiwan and Taiwan efficiency from 80 m / Taiwan month, increased to 115 m / Taiwan month, the scene material costs 57.4 yuan per meter, down to 51.4 yuan, saving 6 yuan / meter, total saving materials Fees 1092 yuan, the total cost of 214.6 yuan per meter, at the same time, for the mine to find a total of three meters thick lead-zinc ore body. The brief introduction is as follows: