无底柱浅孔留矿采矿法60%。
Short-hole shrinkage method without sill pillar occupies 60%.
为此，本文建议选用无底柱诱导冒落法。
In the end, the paper suggests that it choose non-pillar induction caving.
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.
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.
无底柱分段崩落采矿法是一种高效安全的采矿法。
针对海底柱状取样器的科研和设计方向提出了建议。
The paper proposes some suggestion for the research and design direction of sea floor column sample devices.
用YSS声发射仪对采场四周的顶底柱进行声发射监测。
The acoustic emission monitoring of the roof and floor pillars surrounding the stopes was done with YSS acoustic emis-sion meter.
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.
酒泉钢铁公司桦树沟铁矿所用采矿方法是无底柱分段崩落采矿方法。
Sublevel caving without bottom pillar is the method of mining used at Huashugou Mine, Jiuchun Iron and Steel Co.
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.
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.
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.
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.
在此护顶层控制下，上覆充填体的下沉得到了有效控制，使底柱得以安全回收。
It was concluded that the subsidence of the overlying filling body can be effectively controlled by this roof protection layer so as to safe extraction of the pillars.
采场的顶柱作为永久矿柱损失，采场底柱、间柱等采场大量放矿完毕后，一次性进行回收。
The crown pillar of stope is permanent loss and not recoverable, while sill pillar and barrier pillar shall be recovered after the ore drawing work is completed.
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.
大间距无底柱由于加大了进路间距，改善了巷道的应力集中状态，提高了回采巷道的稳定性。
Due to the increase in access space, the stress concentration state of roadway is improved and the stability of extraction opening is increased.
某工程大型玻璃熔窑在一次漏玻璃液火灾中，钢管混凝土窑底柱表现出不寻常的抗火灾能力。
The concrete filled steel tubular columns for supperting furnace showed a outstanding fire-resistant capability in a fire case caused by the leakage of molten glass from one large glass furnace.
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.
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.
本文介绍了铜绿山矿全尾砂高水固化充填试验工艺，以及利用该技术实现底柱采场充填接项的试验研究。
Testing and study on utilizing this technology for tightened filling in sill stope in Tonglushan Mine are presented in this paper.
通过对山东王村铝土矿采矿方法优化的介绍，提出了一种新的采矿方法——人工顶柱无底柱长壁式崩落法。
Through the detail introduction on optimization of raining method in Shandong Wangcun Bauxite Mine, this paper puts forward a new mining method——longwall caving with artificial roof pillar.
本文着重分析了镜铁山矿无底柱崩落法悬顶问题，为合理安排矿山生产，合理利用矿产资源，提供了参考依据。
The article analyzes how the hanging arch is caused during non-pillar sublevel caving in Jingtieshan mine, in order to provide a reference for rational mining organization and resources utilization.
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.
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.
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