2) angle of coal seam
煤层倾角
1.
In order to make the dragline adaptable to the variation of dip angle of coal seam,we built a mathematics model for dragline operation in coal seam with changing dip angle and thick overburden based on the basic theory of surface mining and on China\'s coal hosting condition and draglines\' working characteristics.
为了使拉斗铲能更好地适应煤层倾角的变化,提高拉斗铲工作效率,基于露天采矿基本原理、我国煤层赋存条件以及拉斗铲工况特点,建立了厚覆盖层简单倒堆形式下煤层倾角变化拉斗铲倒堆作业的数学模型,分析了煤层倾角变化对露天煤矿拉斗铲作业效率和抛掷爆破抛掷率的影响,得出了拉斗铲最大倒堆高度、排弃最大距离和有效抛掷率的普遍计算公式以及拉斗铲倒堆作业的限制条件。
3) deep inclined seam
大倾角煤层
1.
Analysis on numerical simulation of bolt support for mining gateway in deep inclined seam;
大倾角煤层回采巷道锚杆支护的数值模拟分析
2.
Gateway and pillar top coal caving mining technology in deep inclined seam with thickness between 3.5 to 10m;
3·5~10m大倾角煤层巷柱式放顶煤开采技术
4) steep coal seam
大倾角煤层
1.
Based on the strata behaviors of steep coal seams, the forms of roof breakage and movement were studied.
根据大倾角煤层采场矿压显现特点 ,对采场顶板岩层的运动、破坏形式进行了研究 。
6) deeply inclined coal seams
大倾角煤层
1.
Coal mining method in the deeply inclined coal seams with hydraulic powered shield supports on single leg sustai;
大倾角煤层单腿支撑式柔性掩护支架采煤法
2.
Beside on the overall analysis roof accidents of deeply inclined coal seams in Huainan mining group company during the period of 1988～2002,the types,characteristics,causes and its prevention measures of roof accidents in deeply inclined coal seams were discusse
在对淮南矿业集团大倾角煤层工作面1988～2002年间发生的顶板伤亡事故分析研究的基础上,阐述了大倾角煤层采场顶板事故类型、特点、原因及其预防措施。
3.
Beside on the overall analysis roof accidents of deeply inclined coal seams in Huainan mining group company during the period of 1988-2002,the types,characteristics,causes and its prevention measures of roof accidents in deeply inclined coal seams were discusse
在对淮南矿业集团大倾角煤层工作面1988-2002年间发生的顶板伤亡事故分析研究的基础上,阐述了大倾角煤层采场顶板事故类型、特点、原因及其预防措施。
补充资料：倾角
分子式：
CAS号：
性质：又称倾斜角。从水平面量起的角度。皮带输送机输送某种颗粒状物料时，可以按此角度倾斜，共值由试验或经验确定。
CAS号：
性质：又称倾斜角。从水平面量起的角度。皮带输送机输送某种颗粒状物料时，可以按此角度倾斜，共值由试验或经验确定。
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