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- Trails of industrial draw body were carried out by installing marking particles in ore mass to study structure parameters of sub level caving of Meishan Iron Mine. 采用在试验矿体中设置标志颗粒,进行工业放出体试验,对梅山铁矿无底柱分段崩落法的采矿结构参数进行研究。
- fully mechanized sub level caving working face 综放工作面
- Keywords sub level caving;thick unconsolidated aquifers;safety pillars under water bodies;engineering geological model; 工程地质模型;放顶煤开采;厚松散含水层;防水煤岩柱;
- Keywords fully mechanized sub level caving;roadway along gob area;simulation calculation;depressurizing roadway;loosening blasting; 综采放顶煤;沿空巷道;模拟计算;卸压巷;松动爆破;
- Mechanism and Preventing Technique on Side Fall Root Caving of Coal Wall in Sub- Level Caving Mining workface 综放工作面煤壁片帮冒顶机理及防治技术
- Datuanshan XI #2 orebody at shizishan copper mine is a deep large size orebody,mined by the sub level open stoping method. 狮子山铜矿大团山XI%232矿体系深部厚大矿体，采用分段空场法开采。
- Reliability study of the production system using fully mechanized mining with sub - level caving method in parallel operations 平行作业综放生产系统可靠性研究
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- Nitrogen injection to the gob with buried pipes is used in 7235 full-mechanized caving mining face in Xuzhuang Colliery to prevent the left coal oxidizing and self-igniting. 摘要介绍了徐庄煤矿7235综放面开采中，采用埋管注氮方式向采空区注氮，防止采空区遗煤氧化自燃。
- I had to sub for the referee, who was sick. 裁判病了，我得代为裁判。
