戈塘金矿房柱法开采围岩稳定性分析
陈洲,左宇军
Stability Analysis of Surrounding Rock of Chamber and Pillar Mining in Getang Gold Mine
Zhou CHEN,Yujun ZUO
表1
采空区跨度计算结果
Table 1
Calculation results of goaf span
序号
直接顶板厚度
h/
m
矿房跨度
L/
m
1
4
≤6.86
2
6
≤10.22
3
8
≤13.50
4
10
≤16.82