丰山铜矿南缘采区应用无底柱分段崩落法采矿。
Sublevel caving method without sill pillar is adopted in the south section of Fengshan Copper Mine.
并对今后无底柱分段崩落法降低损失贫化具有重要的指导意义。
The paper is of important instructive importance to reduce loss and depletion by sublevel caving method without sill pillar.
并对今后无底柱分段崩落法降低损失贫化具有重要的指导意义。
The paper is of important instructive importance to reduce loss and depletion by su...
探讨了无底柱分段崩落法放矿规律，分析了造成损失贫化的原因。
This paper discusses the law of the ore drawing about Sublevel Caving Mining, and analyzes the reasons for the dilution and loss.
揭示无底柱分段崩落法结构参数优化的实质是放出体的空间排列优化问题。
It is exposed that the optimization of the structural parameters of sublevel caving is essentially that of the spacial configuration of the draw off body.
潘洛铁矿属中型生产规模铁矿山，原设计分条分段崩落法在生产中存在较多问题。
Panluo Iron Mine is of medium size and there are many problems in its production which USES the originally designed sublevel caving in strips.
低贫化放矿的推广应用对于实行无底分段崩落法的矿山具有一定的社会价值和经济价值。
Population and application of the dilution ratio ore drawing method has certain social value and economic value for implementation of the sill pillar-free subdrifting method.
灰关联度计算表明，采矿方法适应性排序为：露天开采法、分段崩落法、阶段矿房法等；
The gray relation degree indicates that the series for adaptability of every mining method are surface mining, sublevel caving mining, block stop mining etc;
采用沿脉布置的无底柱分段崩落法，当矿体底板倾角不足时，需要在下盘岩石中开掘进路。
Deficient floor slope Angle of an ore body often needs to dig a drift (or access) in its footwall rock when adopting non-pillar sublevel caving following-vein excavation.
丰山铜矿南缘矿带开采技术条件复杂，原采用的无底柱分段崩落法在生产中存在较大问题。
Because of the mining condition of ore belt of southern edge in Fengshan Copper Mine is more complicated, the originally used sublevel caving method in the production have obvious shortcomings.
大参数多分段并行无贫化放矿的无底柱分段崩落法，是当前崩落法先进理论和技术以及工艺的综合。
The big parameter and multi-subsection of sublevel caving method without sill pillow combines the Caving method with the advanced theoretic and technic.
目前- 350水平以上还在采用干式充填法还在出矿，- 350水平以下采用无底柱分段崩落法，已开采到- 385水平。
It adopt dry filling method in the orebody above -350m level and adopt the method of sublevel caving in the orebody under the level. Exploitation engineering already reach -385m level.
由于无底柱分段崩落法结构参数一直采用经验方法确定，很难保证结构参数最佳，本文分析了放出体和矿石堆体的形态及其影响因素。
Because of anciently usually adopting empirical method to determine the structure parameter of non pillar sublevel caving, there are hard to guarantee parameter optimize.
无底柱分段崩落法贫化大是由现行放矿方式造成的，改用不贫化放矿后可使矿石贫化率在回采率不降低情况下大幅度下降到8％以下。
High dilution for sublevel caving is caused by existing drawing mode. Using thd undilutiondrawing can greatly decrease the ore dilution below 8% without decreasing recovery.
研究表明，造成无底柱分段崩落法来出矿石贫比大的根本原因在于采用了不合理的截止品位放矿方式，无贫化放矿是无底柱分段崩落法最为理想的放矿方式。
Research shows that main cause of ore dilution in sublevel caving mining is tlnrational cut-off grade drawing. Non-dilution ore drawing is most ideal drawing mede.
介绍了无底柱分段崩落法放矿基本原理，利用室内单体模型和平面模型的放矿试验，分析了放矿体的流动规律，并据此确定了某金矿无底柱分段崩落法的基本结构参数。
After analyzing the movement law of ore drawing body, the basic parameters of sublevel mine in a gold mine are calculated by the experiment result of single model and surface model in a lab.
无底柱分段崩落采矿法是一种高效安全的采矿法。
西石门铁矿采用无底柱分段崩落采矿法开采。
Sublevel caving without sill pillar is used in Xishimen Iron Mine.
无底柱分段崩落采矿法存在损失贫化大和损失贫化难以控制的缺点。
Disadvantages of sublevel caving without sill pillar lie in high ore loss and dilution as well as difficult control of ore loss and dilution.
无底柱分段崩落采矿法是否适用于松软破碎矿体，一直是采矿界争论的焦点。
Whether the sill-free sublevel caving mining method is suitable to break and broken orebody has been being discussed for a long time.
在无底柱分段崩落采矿法中，铲运机由于其具有出矿效率高、机动灵活、多用性等优点而被广泛采用。
Scraper is widely used in pillarless sublevel caving due to its high ore drawing efficiency, mobility, flexibility and general purpose application.
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。
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。
Cut-off grade method has been used to control the ore drawing in non-pillar sublevel caving mining both in and outside China.
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