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地下开采井巷中的井巷工程是矿山生产建设中的重要环节,其中,平巷掘进又占相当大的比重。矿山生产过程中为确保生产的持续性,每年所需进行的各期阶段平巷、生产探矿巷道及各种采准平巷的丁程量也是相当大的。据有关资料统计,一个年产矿石30～50万吨的中型矿山,每年的开拓、探矿、采准切割工程量就达一万米以上。矿山生产中出现的“采掘比例失调”、“三级矿量不足”的问题,究其原
Underground mining shaft in the roadway project is an important part of mine production and construction, of which, roadway driving and accounting for a large proportion. In order to ensure the continuity of production in the process of mine production, the amount of dunches required to carry out various phases of the project, including the production of roadways for prospecting and all kinds of quasi-leveling lanes, is also considerable. According to the statistics, an annual output of 300,000 to 500,000 tons of ore mines each year to open up, prospecting, quasi-cutting project amounted to more than 10,000 meters. Appears in the mine production “mining imbalance”, “three ore shortage” problem, the original