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- pillarless sublevel caving method 无底柱分段崩落法
- pillarless sublevel caving method~ structural parameters 无底柱分段崩落法
- Optimizing Cut-off Grade of Ore Drawing in Pillarless Sublevel Caving 无底柱分段崩落法放矿截止品位优化
- Research on Ore Drawing Modes in Pillarless Sublevel Caving Based on SLS System 基于SLS系统的无底柱分段崩落法放矿方式研究
- Calculation of Rational Third-class Ore Reserve of Pillarless Sublevel Caving 无底柱分段崩落采矿法三级矿量的合理计算
- Study on Ore Loss and Dilution in Pillarless Sublevel Caving Based on SLS System 基于SLS系统的无底柱崩落法矿石损失贫化的研究
- Keywords Pillarless sublevel caving;Recovery;Undiluted ore recovery;Rock drop-in rate;Sublevel number; 无底柱分段崩落法;回收率;纯矿石回收率;岩石混入率;分段数;
- Keywords pillarless sublevel caving;SLS system;structural parameters;recovery ratio; 无底柱分段崩落法;SLS系统;结构参数;回收率;
- Keywords Pillarless sublevel caving;Ridge hangover;Ejective object;Large space structural parameters;Sublevel height; 关键词无底柱分段崩落法;脊部残留;放出体;大间距结构参数;分段高度;
- Pillarless sublevel caving 无底柱分段崩落法
- Sublevel caving without sill pillar is used in Xishimen Iron Mine. 西石门铁矿采用无底柱分段崩落采矿法开采。
- As a result,the new scheme of sublevel caving with footwall drifts,is raised. 为此,提出自放顶、设回收进路的无底柱分段崩落法新方案,实施后成效显著。
- It is key problem to raise the top coal recovery rate of the fully mechanized sublevel caving mining. 提高顶煤放出率是综放开采的一个重大课题,预注水弱化顶煤是解决这一问题的有效方法之一。
- Non-pillar sublevel caving may be used in the mining of gently inclined medium thick orebody when footwall cutting technology is adopted. 在采用下盘切岩工艺后,无底柱分段崩落法可以在缓倾斜中厚矿体中应用。
- With the increase of the depth of coal seams mined, rock bursts will easily occur in gateways with fully-mechanized sublevel caving mining. 摘要随着煤矿开采深度增加,综放开采回采巷道易发生冲击地压危害。
- Using hydraulic supports in heavy grade longwall face with sublevel caving,anti-topple and antiskid are the key factors. 在大倾角倾斜煤层进行综放开采,支架的防倒、防滑成为决定放顶煤开采成功与否的关键。
- Cut-off grade method has been used to control the ore drawing in non-pillar sublevel caving mining both in and outside China. 采用无底柱分段崩落采矿法,国内外一直采用截止品位放矿法来控制出矿。
- Through the quantitative analysis about base cracks of sublevel caving hydraulic supports,some useful measures were taken, effect is well. 通过对放顶煤支架底座开裂原因作定性定量分析,提出了合理的修复措施,修复后,使用效果很好。
- The measures for reduction of oes losing and degrading are described based on the sublevel caving practice in Hujiayu Copper Mine. 根据胡家峪铜矿的有底柱崩落法实践,探讨降低矿石损失和贫化率的有效途径。
- As a result,the current sublevel caving operation practice,the management and operation experiences and the existing mechanical equipme... 使矿山现行的无底柱分段崩落法作业习惯、管理操作经验和原有的机械设备能得到充分利用,提高了矿石回收率,增强了生产的安全性。