1) hard supporting-board
顶底板硬
2) hard roof and hard floor
坚硬顶底板
3) hard roof
坚硬顶板
1.
Numerical Simulation of hard roof processing step;
坚硬顶板处理步距的数值模拟
2.
Numerical simulation of moving features of hard roof with three-dimensional discrete element method and nonlinear dynamic analysis;
坚硬顶板运动特征的数值模拟及非线性动力学分析
3.
Numerical simulation study with 3DEC on impacted movement of hard roof in manless working face extraction;
无人工作面开采坚硬顶板冲击运动的3DEC数值模拟研究
4) Mid-Hard Roof
中硬顶板
5) thick-hard roof
厚硬顶板
1.
8102 face in the Guobei Coal Mine, key technologies of reasonable mining under the condition of soft coal, thick-hard roof and contiguous seams have been studied by the integrated means of theory analysis,numerical simulation and field measurement.
本文以涡北煤矿8102工作面的地质条件和生产技术条件为基础,综合运用理论分析、数值模拟和现场实测等方法,对软煤、厚硬顶板、极近距离煤层合理开采关键技术进行了系统研究。
6) roof and floor
顶底板
1.
Water inflow forecast from roof and floor in the deep area of No.1 panel;
深部首采工作面顶底板涌水量预计
2.
Based on analysis of characteristics of the roof and floor of each minable seam,this paper demonstrated some common issues occurring in underground working activities,providing reliable data for helping shaft geologists with their engineering design and construction and then contributing to mining activities in a better way.
通过对童亭井田各可采煤层顶底板特性分析,对不同顶底板岩性及采掘中遇见的问题进行了说明,为矿井地质工作人员设计、施工提供了可靠的地质依据,以更好地为矿井生产服务。
3.
On the basis of digital acoustic logging and density logging data, the stability of theroof and floor of the main workable coal seams in Hanzhuang wellfield of Qinshui coalfield,Shanxi.
根据数字声波测井和密度测井资料，讨论了山西沁水煤田韩庄井田主要可采煤层顶底板的稳定性。
补充资料：顶底复吹转炉的炉底(正在倾炉出钢)(宝钢)
顶底复吹转炉的炉底(正在倾炉出钢)(宝钢)
顶底复吹转炉的炉底(正在倾炉出钢)(宝钢)
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