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- Keywords overall shrinkage stoping;structural parameters of s tope;base structure;stoping of orepillar; 留矿全面采矿法;采场结构参数;底部结构;矿柱回采;
- overall shrinkage stoping 留矿全面采矿法
- Practice shows that shallow hole shrinkage stoping method greatly decreased mining workload,lessened mining time,and increased mining efficiency. 实践证明,改进后大大减少了采切工程量,缩短了施工时间,提高了生产效率,为同类矿山提供了经验。
- The combination of sublevel stoping and shrinkage stoping is proposed.The inharmoniously demand of ore for concentrator can be met by modulating the mining process. 推荐使用分段空场法和留矿采矿法进行采矿,通过对井下采矿作业的工艺调节,满足选矿厂的不均衡供矿。
- In this paper,the structure and construction of the flat bottom of short-hole shrinkage stope with grid fence attached are studied. 本文介绍了浅孔留矿法平底栏栅底部结构及其施工。
- In mining the extremely fractured thin ore body,the separation of waste rock in the conventional shrinkage stoping was replaced by the separation of the rich ore and retaining the lean ore. 对极破碎薄矿体的开采,采用了将常规的留矿法中分选废石改为分选富矿石留贫矿石的采矿方法。
- Blasting control in shrinkage stoping method 留矿法采矿控制爆破实践
- Application of shrinkage stoping method 留矿采矿法在民采中的应用
- shrinkage stoping with short hole 浅孔留矿法
- shallow-hole shrinkage stoping method 浅孔留矿法
- short-hole shrinkage stoping method 浅孔留矿法
- shrinkage stoping without floor pillar 无底柱留矿法
- He tried to varnish over the truth with a lie. 他试图用谎言来掩盖真相。
- I've got the hump over what he said to me. 我已经对他所说的很不耐烦了。
- She threw a scarf over her shoulders. 她在肩上披上一块肩巾。
- The boat heeled over in a strong wind. 船在强风吹袭下倾侧了。
- When extracting steeply-inclined thin orebody near outcrop, there normally exists triangle stopes.Many technological problems occur when extracting such stopes with common method of shrinkage stoping. 摘要急倾斜薄矿体露头附近开采时,常形成三角形不规则采场,采用普通浅孔留矿法回采存在一系列技术问题。
- They all cooed over the new baby. 他们对着新生婴儿爱抚地轻声细语。
- The dog kept a vigilant guard over the house. 这只狗警惕地守护着这所房屋。
- There's been an overall improvement recently. 近来各方面都有所改进。