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- As a result,the short hole shrinkage method with flat bottom structure was employed to mine the stope firstly,then stoping ore pillar by medium length hole caving method. 后沟金矿采用平底结构浅孔留矿法先采矿房，后用中深孔崩落法回采矿柱，经两年多的生产实践，取得较好的技术经济指标。
- shrinkage stoping with short hole 浅孔留矿法
- 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。
- Design Principle and Construction Expriences of Shrinkage Stoping with Short Hole in Vein Gold Mine 岩金矿山浅孔留矿法的设计原则和施工经验
- Bottom Structure Evolvement and Effect of Shallow Hole Shrinkage Stoping System 浅眼留矿法的底部结构演化及其效果
- Application of Short Hole Shrinkage Method in Gently Inclined Thick Ore Body 浅孔留矿法在缓倾斜中厚矿体中的应用
- Application of Shallow Hole Shrinkage Stoping with No-pillar in Gold Deposit Mining 无底柱浅孔留矿法在某金矿采矿的应用
- Application on Driving Ways of Oblique Long-wall Mining Face in Shallow Hole Shrinkage Stoping 伪斜工作面推进方式在浅孔留矿法中的应用
- Application of the Primary Filling System Following the Short Hole Shrinkage Method in Fengning Silver Mine of Hebei Province 浅孔留矿嗣后一次充填采矿法在河北省丰宁银矿的应用
- Even on a short hole, this is really hard to do. 尽管是在最短的距离,那么这种动作也是非常具有高难度的。
- 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。
- The WHF method,maily,emphasizes,decentral,real,press,effect,ofdeforgings,it has better results in solving of the metallurgical defects such as ingot segregation,central porosity,hole shrinkage. WHF法主要强调锻件的中心压实效应,对于解决因冶炼带来的锭型偏析、中心疏松、缩孔等缺陷有较好的效果,而且针对性强、方便适用,因此被广泛应用于大、中型轴类件的生产。
- 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
- shallow-hole shrinkage stoping method 浅孔留矿法
- Your work falls short of my expectations. 你的工作未达到我的期望。
- Our escape was little short of miraculous. 我们能逃脱简直是个奇迹。
- short-hole shrinkage stoping method 浅孔留矿法
