1) roadway caving method
巷道放顶煤开采
1.
Based on the application of artificial neural networks method, it sets up the artificial neural networks model for the evaluation on the degree of difficulty of top coal caving of roadway caving method in steep medium-thickness and high seam The model is made use of forecasting the technical-economic indexes of coal face and optimizing the technological parameters of roadway caving metho
应用人工神经网络方法，建立了急倾斜中厚－厚煤层巷道放顶煤开采可放性评价的人工神经网络模型。
2) roadway sub-level caving
巷道放顶煤
1.
The model computer simulation for roadway sub-level caving of steep medium thickness～thick seem was set ip on the basis of industrial test It is simulated that the recovery rate of roof coal was influenced by the thickness of seam, the height of caving level and the distance of chute Thus, the optimal height of caving level was determine
在工业性试验的基础上建立了急倾斜中厚－厚煤层巷道放顶煤计算机模拟模型，模拟了煤厚、分段高度、放煤口距离对顶煤回收率的影响，确定了不同煤厚的分段高
3) roadway caving
巷道放顶煤
1.
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。
2.
Applying systematic reliability theory, the mathematical model on the reliability of the production system of roadway caving in steep medium-thickness and hish seam is set up, and the calculating formulas of the effectiveness and production ability of this system are also given.
本文应用系统可靠性理论，建立了急倾斜中厚-厚煤层巷道放顶煤生产系统的可靠性数学模型，给出了系统可用度和生产能力的计算公式，并对梅田六矿试验区生产系统进行了可靠性分析。
4) combin gateway and pillar with fully mechanized top cawing mining
巷柱-综采放顶煤
1.
Refencing these advantages which are fully mechanized top cawing mining and gateway and pillar top coal caving for steep inclined thick or special thick seam in China , from that, the paper put forward a combin gateway and pillar with fully mechanized top cawing mining technology in steep inclined special thick seam with a thickness form 10 to 20 m.
综合我国急倾斜煤层水平分层综采放顶煤和水平分段巷柱式放顶煤两种采煤方法的技术优点,提出在厚度10~20m的急倾斜煤层内使用"巷柱-综采放顶煤"开采技术。
5) top coal caving
放顶煤开采
1.
The horizontal section top coal caving in steep seam is different from the gently inclined seam.
急斜煤层水平分段放顶煤开采与缓斜煤层不同,工作面沿煤层厚度的水平线布置,长度短。
2.
The mine adopts a coal demolish feebleization technique beforehand to implement top coal caving.
沈阳蒲河矿, 在煤层硬度系数f=2~3, 并含有夹矸层的复杂煤层中, 采用顶煤预爆破弱化技术, 成功地实施了放顶煤开采。
3.
Based on the physical phenomenon that the amount of the gamma ray radiation in rock is different from the amount of the gamma ray radiation in coal,the paper puts forward the method for coal rock detection in top coal caving.
基于岩层与煤层中存在的自然γ射线具有显著差异的特性 ,提出了用自然γ射线方法解决综采放顶煤开采放煤过程煤矸识别问题 ;分析了煤矿煤岩中自然γ射线分布特征及该方法的适用性 ;探讨了动态煤矸分界监测可行性和顶煤落放规律对煤矸识别的影
6) sub-level caving mining
放顶煤开采
1.
Based on conditions of Gengcuen coal mining (二 3)coal with sub-level caving mining.
以义马耿村矿二3煤放顶煤开采条件为基础 ,应用相似材料模拟方法 ,研究了开采后上覆岩层运动的过程、变化及特点 ,探讨了上覆岩层运动的规律 ;根据模拟结果 ,分析了开采范围内支承压力峰值的变化及对顶煤破碎的影响。
补充资料：综采放顶煤
综采放顶煤：厚煤层煤炭开采技术之一。把原来分层开采的煤炭，一次采完。方法是，在煤层底部按传统方法开采，使上面的煤炭在矿压的作用下，自动落下来。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条