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- The mining method which will be used at Hebei Fanshan Phosphorus Mine is a new one combining the sublevel caving mining method with sill pillar and sublevel caving mining method without sill pillar. 河北矾山磷矿采矿方法为有底柱和无底柱采矿法相结合的一种新的采矿法，其采场结构参数选取正确与否，将直接影响该方法优越性的发挥。
- Pillar-free sublevel caving mining method 无底柱分段崩落采矿法
- Application of Non-pillar Sublevel Caving Mining Method in Chadian Phosphorus Mine 无底柱分段崩落采矿法在汉中茶店磷矿的应用
- sublevel caving mining method 无底柱崩落采矿法
- 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。
- 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。
- Therefore,different mining methods including sublevel caving,sublevel open stoping with subsequent filling are tried to solve these problems. 采矿方法从充填法改为分段崩落法、阶段崩落法及分段空场嗣后充填法，使采矿方法不断改进和完善，提高了矿山生产能力和矿石回收率。
- 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. 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。
- FU Qiang,WU Jian.Research on the drawing technology of thinner top-coal in longwall sublevel caving mining[J].Ground Pressure and Strata Control,2000,17(3):2-6. [7]富强;吴健.;顶煤较薄煤层综放开采放煤工艺研究[J]
- The relation between ore loss and dilution during drawing in sublevel caving mining is analysedand studied on the hasis of the results from experiments and production. 本文根据实验及生产放矿结果，分析研究了无底柱分段崩落法放矿过程中矿石损失贫化的关系问题。
- 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。
- The mechanism of rock bursts occurred in gateways, combined with engineering practice, is studied and the mining in fully-mechanized sublevel caving mining faces is simulated by using the software FLAC(superscript 3D). 研究综放工作面回采巷道冲击地压发生机理，结合工程实例，运用FLAC(上标3D)软件模拟综放面回采。
- 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。
- It has great influence on the effect of dilution drawing,that the shape and size of ore remained mass at the tope dilution drawing in sublevel caving mining without bottom pillars. 无底柱分段崩落法矿石残留体的形态和大小在端部放矿对放矿效果有着重大影响。
- The paper firstly analyzed the damage mechanism in entry along the goaf with fully mechanized sublevel caving mining by which field actual measure the character of deforming and damage. 本文首先通过对深井综放开采沿空巷道的变形破坏特征的现场实测，分析了综放面沿空巷道的破坏机理。
- fully mechanized sublevel caving mining 综放开采
- fully-mechanized sublevel caving mining 综放开采
- fully mechanized sublevel caving mining face 综放工作面
- PILOT STUDY ON SUBLEVEL CAVING AND OFF-LOAD MINING METHOD IN THE SOUTH AREA OF XISHIMEN IRON ORE MINE 西石门铁矿南区崩落卸载采矿法试验研究
- Test and study on sublevel caving stage open-stope and overhand combination cut-and-fill mining method 分段落矿阶段空场与上向分层联合充填采矿法试验研究
