王建,贾明涛, 陈忠强

贵州某金矿井下生产采用凿岩台车、铲运机、大型矿用卡车、混凝土湿喷车及装药车等配套的机械化水平分层充填采矿法。矿山采用斜坡道开拓，中段高度60m，分段高度20m，分层回采高度5m。垂直矿体走向布置穿脉道，沿矿体走向布置采场，不留矿柱，进行胶结充填。采矿综合回收率达到95%以上，贫化率小于5%。2012年生产性单位成本为27.33$/t。生产实践表明，该无轨采矿工艺技术先进，安全可靠，对国内其他无轨矿山建设具有示范作用和参考价值。

Application of Large Mechanized Horizontal Cut and Fill Method in a Certain Gold Mine

Mechanized horizontal cut and fill mining method is applied by a certain gold mine in Guizhou province. Large mining machines are introduced such as jumbo, LHD, large mining truck, spray machine and explosive truck. The mine is developed by decline system and the height of the level and subsection is 60 meters and 20 meters respectively. Mining layer height is 5 meters. Cross cut is designed perpendicular to the ore body, and stopes are distributed along the ore body. Cemented filling is used and no ore pillar is left. The overall recovery rate of ore achieved exceeds 95% with the dilution rate less than 5%. Unit operation cost in 2012 is 27.33$/t. Production practice shows that this trackless mining technique is both advanced and safe, and it is helpful for domestic trackless mining.