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- forced block caving method 阶段强制崩落法
- Tonkuangyu Copper Mine sets up a set of simple and convenient monitoring system of orebody caving state in the mine stope to use block caving method. 铜矿峪铜矿在自然崩落法采场中，建立了一整套简便易行的矿体崩落状态监测系统。
- forced block caving 强制块段崩落,强制分段崩落开采
- gravity block caving method 阶段自然崩落法
- block caving method 分段崩落采矿法
- According to the theory and method of particle flow code in two dimensions (PFC2D), the block caving law of natural caving mining method was investigated. 以自然崩落采矿法为研究对象,利用二维颗粒流数值模拟(PFC2D)的原理和方法,研究了自然崩落法矿体崩落规律。
- The predicting results can be used as the basis for design and practice of block caving. 预测结果可以作为自然崩落法工程设计与实施的参考依据。
- Feasible drawing interval is the basis to study mining equipment of fully-mechanize coal mining with caving method. 综放开采的合理放煤步距是研制综放工作面成套技术装备的基础,是提高综放工作面采出率与煤质的关键之一。
- On Ground Pressure Control Method in Block Caving 自然崩落法地压控制方法探讨
- Sublevel Mechanized caving method shows the characteristics of high out-put,more dust sources,high dust concentration and difficult to control. 煤矿综采放顶煤工作面开采强度大、产尘尘源多、粉尘浓度高，因而对尘毒的治理难度大。
- The original block caving system with floor pillar exists many effects,such as development work large,constraction difficult,production efficiency lower and ore loss great. 原采用有底柱崩落法底板漏斗方案，存在采准工程量大、施工困难、生产效率低和矿石损失贫化大等问题。
- The paper is of important instructive importance to reduce loss and depletion by sublevel caving method without sill pilla... 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。
- To simulate the problem,a numerical analysis method,FLAC3D is applied to analysis the depressurization range of sublevel caving method. 应用FLAC3D对分段崩落法的卸压范围进行了数值分析,据此确定出适于卸压的采场结构,由此形成了无底柱分段崩落法开采倾斜矿体的卸压开采方案。
- On the basis of industry test,this paper analyses mining feasibility of applying roadway caving method and caving broken mechanism in high gas steeply indined medium coal seams. 在工业性试验的基础上,分析了在高瓦斯急倾斜中厚煤层中应用巷道放顶煤法开采的可行性和顶煤的破碎机理。
- In light of the characteristics of Nonpillar sublevel caving method,Probability integral method is used to predict mining subsidence and modified to improve predicting accuracy. 针对无底柱分段崩落法的采矿特点,把概率积分法引入金属矿山开采沉陷预测中,并通过模型修正提高预测精度。
- The rockfall hazard will take place inevitably under the condition of steeper hillside after ground collapse or cave to ground surface caused by exploitation with caving method. 摘要在山体下进行崩落开采崩通或塌陷到地表时，在陡峭的山体地形条件下将不可避免地产生滚石灾害。
- Most of mines whore a pillarlcss sublcvcl caving method is introduced experience ground pressure, as manifested by deformation and damage of mining entrances and connecting slots. 在使用无底柱分段崩落法的矿山,大都存在着地压现象。其主要表现是采矿进路和联络道的变形破坏。
- Strong Griffin forces block all the major roads between us and the city of Gehenna. 顽固的狮鹫大军封锁了所有通往吉赫纳的道路。
- As the first successful introduction of natural caving method in domestic nonferrous metal mine,Tongkuangyu Mine increases production capacity and reduces production costs. 铜矿峪矿作为国内第一个成功引进自然崩落法技术的有色金属矿山,提高了矿山生产能力,降低了生产成本。
- This paper analyses the reasons for the gob fire of the face with fully mechanized mining caving method in free burning seam and gives the gob fire eradication means. 分析了王营矿极易自燃煤层综放工作面采空区自燃发火的原因，提出了防治措施。
