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1)  top-coal and roof
顶煤岩
1.
In this paper, compositive research techniques including of three-dimensional numerical simulation, in-situ measurement, equivalent material simulation and theoretical analysis are carried out to investigate the stress distribution, failure mechanism and displacement and movement laws of top-coal and roof in fully mechanized top-coal caving (FMTC) face with thinner-thick seam.
本论文采用FLAC~(3D)计算机数值模拟、实验室相似材料模拟实验、现场观测以及理论分析等综合研究方法,对较薄厚煤层综放面顶煤岩应力分布、位移、破坏机理及运移规律进行了系统深入的研究。
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2)  top coal strata movement and displacement
顶煤岩运移
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3)  sandstone at the top of coal 3
3煤顶部砂岩
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4)  Detector of coal seam roof strata
煤层顶板岩层探测器
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5)  top coal
顶煤
1.
Research on loose blasting technology for top coal;
顶煤松动爆破技术的研究
2.
Analysis on three feature deformation parameters and multi damage of top coal in fully mechanized caving mining;
综放开采顶煤的三个特征变形参数及多次损伤分析
3.
Determination of working resistance of support under different top coal conditions;
不同顶煤条件下支架工作阻力的确定
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6)  roof-coal
顶煤
1.
From the influencing factors,the falling capability of roof-coal is studied systematically by finite element numerical analysis and observations in-situ.
从影响顶煤可放性的因素出发,结合现场观测,采用有限元数值分析方法,系统地研究了顶煤的可放性,并运用建立的顶煤可放性预测模型,对济宁二号煤矿的顶煤可放性进行了预测。
2.
This paper studies the failure mechanism of roof-coal in abutment presure according to the basic principle about rock deformation and roct mechanics.
本文以岩石力学关于岩石变形破坏的基本原理为基础,研究了在支承压力作用下顶煤破碎机理。
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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