1) top coal smash
顶煤破碎
1.
The effect of top coal smash result in different manners of moving support, pressure relief and “dower support—draw support—prop up” and sliding advance of support, are analyzed with contrast.
以放顶煤开采现场实测为基础 ,着重探讨了顶煤的变形特征、顶煤变形与支承压力的关系 ;对比分析了“卸载降架—拉架—支撑”和“带压移架”不同移架方式对顶煤破碎效果的影响 。
2) broken coal roof
破碎煤顶
1.
The truss cable support technology at the large cross-section set-up room with thick and broken coal roof
大断面厚层破碎煤顶综放切巷桁架锚索支护技术
3) fragmentation of top coal
顶煤破碎特征
4) top coal crushing mechanism
顶煤破碎机理
1.
The authors has expounded the top coal crushing mechanism and reasonable determination of caving coal height in roof caving workface,which helps to determine the feasibility of roof caving and complete mining according to the thickness of top coal and the degree of softness and hardness.
主要阐述了放顶煤工作面顶煤破碎机理及放煤高度的合理确定;针对放顶煤工作面的顶煤厚度和煤质软硬程度,正确判定顶煤是否具有可放性,为工作面能否一次采全高提供科学依据。
5) weak friable coal roadway
松软破碎煤顶巷道
6) broken roof
破碎顶板
1.
Prevention and control technology for spalling and failing of high inclined broken roof in fully mechanized mining face;
综采工作面大倾角破碎顶板片帮冒顶防治技术
2.
Research on broken roof consolidation technology in coal ming face;
采煤工作面破碎顶板加固技术研究
3.
Mechanism and project practices on broken roof control with wood bolt in fully mechanized coal mining face;
木锚杆控制综采面破碎顶板的机理及工程实践
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