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- Fully mechanized top caving mining 综放
- Fire extinguish gel technology and its application in fully mechanized top caving mining face 凝胶灭火技术及其在综放工作面中的应用
- ANALYSIS ON THE MARCO SIZE EFFECT OF IRREGULAR PILLAR LEFT ALONG A MECHANIZED TOP CAVING MINING FACE 综放沿空异形煤柱广义尺寸效应研究
- NUMERICAL ANALYSIS ON TOP COAL MOVEMENT AND STRESS DISTRIBUTION IN MECHANIZED TOP CAVING MINING OF THICK COAL SEAM 厚煤层综放开采顶煤运移及应力分布规律的数值分析
- The Practice of Choosing and Matching the Fully Mechanized Top Caving Mining Equipment Them under Soft Roof, Soft Coal and Soft Floor 三软不稳定厚煤层综放设备选型配套经验
- Safety sealing and opening for fire disaster of fully mechanized top caving mining face with high gassy and spontaneous combustion 高瓦斯易燃厚煤层综放面火灾的安全封闭与启封
- Techniques and practice of longwall with top caving mining in soft and combustible coal Seam with steep dip, extra-thickness 急倾斜特厚松软易燃煤层综放开采技术与实践
- mechanized top caving mining 综放开采
- 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。
- This article introduced applications,observation and research's actuality and developing trend of fully mechanized top coal caving mining under water. 介绍放顶煤开采技术在水体下采煤领域中的应用情况、观测研究现状及其发展趋势。
- The movement of top coal and top roof is discussed with the data observed from the caving mining of deeply inclined thick coal seam with horizontal section in Zhaogezhuang colliery of Kailuan Group. 就开滦集团赵各庄矿在急倾斜厚煤层采用水平分段开采过程中的现场观测,探讨顶煤和顶底板运移。
- Finally, the paper considers that the fully mechanized coal caving mining is helpful to control outburst hazard. 认为:具突出危险性的厚煤层采用综采放顶煤开采法对消突是有积极作用的.
- 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。
- Formula(1),(2),(6),(7) are calculating foundati on to define working face length for fully mechanised caving mining under defini te geology factor. 文中式(1)、(2)、(6)、(7)可作为在地质因素一定的条件下,确定综放工作面长度的计算依据。
- 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。
- Favorable and unfavorable factors of mining under sea are analyzed in this paper after introducing the cause of selecting full-mechanized caving mining. 摘要介绍了龙口海域下开采的有利与不利因素,分析了海域下选择综放开采的原因;
- 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。
- Fully Mechanized LongwaU Top Caving Face 综放面
- The application of elevated fully mechanized caving mining technology is an economical and efficient means for an old coal mine with an exploitation history of 38 years. 应用高位综放工艺回采煤柱资源对于已有38年开采历史的老矿来说是一种经济、高效的手段。