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
表2 胶结充填体初始冒落块度组成
Table 2 Initial caving block composition of cemented backfill

块体

尺寸/m

块度

分级

各测点块度分布情况/%

平均值

/%

5行调查点6行调查点7行调查点
>0.6大块53201429
0.3~0.6中块19353630
0.1~0.3次中块11362223
<0.1小块16102818