1) stoping by opening
堑沟式采矿法
2) Trench ore-drawing
堑沟出矿
3) Trench gathering of ore
堑沟受矿
6) trench bottom structure
堑沟受矿底部结构
1.
In view of existing problems of bottom structure in stopes in Xinqiao Pyrite Mine,trench bottom structure is selected by making analysis and comparison between both bottom structures of trench and mill hole bottom and optimal parameters of trench bottom structure are studied systematically with theory formula.
针对新桥硫铁矿目前采场底部结构所存在的问题 ,通过对堑沟底部结构和漏斗底部结构进行分析比较 ,选择了堑沟受矿底部结构 ,并系统地运用理论公式对底部结构的主要参数进行了优化。
补充资料：撅坑堑
1.见"撅坑撅堑"
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条