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
图1
岩梁支承条件
H
-岩梁厚度;
L
-矿房跨度;
q
-岩梁自重及外部均布荷载。
Fig.1
Supporting condition of rock beam