松散覆盖岩层的自然分级现象对使用崩落法开采的矿山开采效果有较明显的影响。
The natural grade classification of loose-covered rock has a great effect on caving mining efficiency.
崩落法开采急倾斜金属矿山的地表沉陷问题是国际性重大难题，属构造应力影响下地表移动问题。
The surface subsidence for caving mining used for metal mines with steep veins, a worldwide difficult problem, belongs to the realm of surface movement under the effect of tectonic stress.
对于金属矿的开采，一般认为分层崩落法与其他采矿法相比，是一种成本高、产量低、木材消耗量大的采矿方法。
Generally top slicing is a mining method of high cost, low productivity, and large consumption of timber as compared with other methods for mining metalliferous ore bodies.
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.
文章根据铜矿峪铜矿开采条件，运用边界元法进行了矿块崩落法拉底过程中应力分布规律的研究。
Studies of stress distribution during undercutting were carried out using Boundary Element Method for Tongkuangyu Copper Mine.
通过上述研究，为中厚矿体崩落法卸压开采的参数选择和优化提供了相应的依据和方法。
Based on the research above, it provides a basis and proposal for the choice and optimization of parameters for depressurized mining of the medium-thick ore-body.
崩落采矿法是金属矿山地下开采应用较多的一种高效采矿方法，覆岩下底部放矿损失贫化大是该采矿法的一个特点。
Caving method is a high efficiency mining method widely used in underground metal mines. While it is a characteristic of the method that the loss rate and dilution rate is high.
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.
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.
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;
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;
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