复杂开采条件下低品位镍矿安全高效回采方案研究

谭宝会,王永定,张志贵,龙卫国,李斌,何建元,龚臻

Study on Safety and Efficient Mining Scheme for Low Grade Nickel Ore Under Complex Mining Conditions

Baohui TAN,Yongding WANG,Zhigui ZHANG,Weiguo LONG,Bin LI,Jianyuan HE,Zhen GONG

图2 大体积胶结充填体诱导冒落形成覆盖层方案示意图 1-回采进路；2-中深孔炮排；3-下盘沿脉巷道；4-矿石散体垫层；5-切割立槽；6-上盘切割平巷；7-溜井；8-冒落胶结充填体；9-阶梯式退采方向；10-片麻岩；11-胶结充填体；12-矿体

Fig.2 Schematic diagram of overburden formation scheme by induced caving of large volume backfill