您要查找的是不是:
- Therefore,different mining methods including sublevel caving,sublevel open stoping with subsequent filling are tried to solve these problems. 采矿方法从充填法改为分段崩落法、阶段崩落法及分段空场嗣后充填法,使采矿方法不断改进和完善,提高了矿山生产能力和矿石回收率。
- HU Ji-ping.A case study of modern underground mining methods (IV):sublevel open stoping with draw points on footwall [J].Foreign Metal Mining Magazine,1990(9):40-43. [4]胡际平.;现代地下矿山采矿方法典型实例 (八)--下盘漏斗分段空场采矿法[J]
- Narrow sublevel open stope method 窄分段分采空场法
- Application and Development of Filled Stope Mining Method in Underground Mine of BAIYIN Nonferrous Metals Co. 白银公司井下矿山充填采矿方法的应用。
- The experimental study of sublevel open stoping with tail filling and pre controlling of roof was introduced. 介绍了河东金矿预控顶分段空场尾砂充填采矿法试验研究。
- The Practise of Blast Technique of Sublevel Drilling and Stope Mining 分段凿岩阶段矿房法爆破工艺的实践
- Keywords medium-thickness broken orebody;sublevel open stope method;cutthrough; 中厚破碎矿体;分段空场采矿法;切割槽;
- Keywords All-tailing;Delayed cementing fill;Sublevel open stope method;Material pulp density; 全尾砂;分段空场法;嗣后胶结充填;料浆浓度;
- Keywords Open stope mining method Disposal of mined-out areas New disposals; 空场采矿法;采空区处理;新型处理方法;
- Keywords No.1 lead-zinc orebody;primary design;sublevel open stope method;sublevel drill and benching ore removal; 号铅锌矿体;初步设计;分段空场法;分段凿岩阶段出矿;
- the method of sublevel stoping mining room 分段凿岩阶段矿房法
- A rough study on structural parameters for open stope mining method in Zijinshan Copper Mine, Fujian Province 福建紫金山铜矿空场采矿方法结构参数的初步探讨
- sublevel open- stope mining 分段空场法
- Keywords gold deposit;fracture;narrow vein;sublevel open stoping; 黄金矿床;破碎;薄矿脉;采矿分段空场法;
- Application of medium-length hole sublevel open stoping to the mining of thick part of high grade complex orebody 中深孔分段空场采矿法在高品位复杂难采厚矿段的应用
- sublevel open stope method 分段无充填工祖采矿法
- Keywords Datuanshan deposit;Mining technology;Largediameter long-hole sublevel open stoping with delayed filling; 大团山矿床;采矿工艺;大直径深孔阶段空场嗣后充填;优化;
- Pea pods burst open when overripe. 豌豆过熟就会爆裂。
- Open tender for purchasing power transformer. 公开招标购买电力运输设备。
- We bivouacked on the open plain. 我们在开阔的原野上露营。