2) Bench open stoping
阶段空场
1.
Test results show that the model is stable,the movement of stop roof and ground surface is less,the change of strain in the pillar is stable,Bench open stoping and subsequent filling mining is feasible.
试验结果表明模型总体呈稳定状态,采场顶板和地表沉降量较小,矿柱应变变化平稳,阶段空场嗣后充填法开采是可行的。
3) low approach phase
低空进场阶段
4) section-wise open stoping method
阶段空场出矿
1.
According to result of analysis & research,the decision is made to adopt section-wise drilling and section-wise open stoping method to the middle-thick ore body below 18m level.
经过分析和研究,对10 m以下中厚矿体采用分段凿岩、阶段空场出矿法开采,可以提高矿石回采率和减少矿石损失、贫化。
5) sublevel open-stope mining
分段空场法
1.
In the case of using sublevel open-stope mining method and from development work to pillar recovering,the technological & management measures for reducing ore loss and ore depletion are analyzed in details.
详细介绍了采用分段空场法从采矿准备到矿柱回采的各个阶段降低矿石损失与贫化的技术、管理措施,该方法在同类矿山的实际生产中具有借鉴作用。
6) sublevel open stope method
分段空场法
1.
1 lead-zinc orebody, and combining many years mine experiences,the sublevel open stope method with low costs,large productive capacity and high prod- uctivity was choiced,and the main technical and economical indexes was calculated in detail.
根据Ⅰ号铅锌矿体赋存特点及矿床开采技术条件,结合该公司多年来的矿山生产实践经验,采矿方法初步设计选用成本低、生产能力大、劳动生产率高的分段空场法,并对主要技术经济指标进行了计算。
补充资料：空场
1.空旷的场地。
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