1) shallow buried coal seam
近浅埋煤层
1.
Based on mining practice of 2302 Mining Face of Yuyang Colliery,this paper applied two mechanics models of "board" and "beam" to analyzing and calculating first roof weighting pace of basic roof in shallow buried coal seam.
以榆阳煤矿2302工作面的开采实践为工程背景,利用"板"和"梁"两种力学模型对近浅埋煤层开采基本顶初次来压步距进行了分析和计算,结合基本顶实际垮落步距确定出适合近浅埋地质条件下的力学模型,并计算了"板"力学模型在不同边界条件下初次来压步距。
2) shallow seam
浅埋煤层
1.
Simulating of determining reasonable working resistance of support in shallow seam of thick clay layers;
浅埋煤层工作面合理阻力支架选型相似模拟实验研究
2.
Post-buckling behavior for roof strata in shallow seam longwall mining;
浅埋煤层长壁开采顶板岩层的后屈曲性态
3.
Study on catastrophe mechanism for roof strata in shallow seam longwall mining;
浅埋煤层长壁开采顶板岩层灾害机理研究
3) shallow coal seam
浅埋煤层
1.
Study on stability of overburden stratum structure by numerical simulation for shallow coal seam;
浅埋煤层覆岩结构稳定性数值模拟研究
2.
Criterion of broken and limit stride calculation in shallow coal seam coved with thick loose layer;
厚松散层浅埋煤层覆岩破断判据及跨距计算
3.
Simulating test on damage regularities of thick sandy soil layer and load distribution on key roof block in shallow coal seams;
浅埋煤层厚沙土层顶板关键块动态载荷分布规律
4) thick seam with shallow depth
浅埋厚煤层
1.
Research on rational width of protective coal pillar for slicing mining in thick seam with shallow depth;
浅埋厚煤层分层开采保护煤柱合理宽度研究
5) shallow thick coal seam
浅埋深特厚煤层
1.
Based on the high mining height of fully-mechanized top-coal caving in shallow thick coal seam and the few falling waste rock in goal, the key roof can not be supported effectively,the facture mechanical model of key roof was established.
根据浅埋深特厚煤层综放开采采高大,采空区垮落矸石不充分,不能有效支撑老顶岩梁,造成老顶架后切落的特点,建立了老顶断裂力学模型,利用断裂力学理论推导了老顶的断裂步距和支架的合理工作阻力。
6) shallowly-buried and thick seam
浅埋深厚煤层
补充资料：近浅
1.浅陋，平庸。
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