1) drawing test
放煤试验
1.
Based on drawing test of the different drawing technology in fully mechanized working face with sublevel caving, which is mined in the light of cutting one knife then drawing one time, two knives then drawing one time, three knives then drawing one time, three knives then drawing two times, it is determined that double turns gap draw.
根据改造型支架低位放顶煤特点 ,提出了现场生产合理放煤方式选择的原则 ,在综放工作面进行一刀一放 ,、二刀一放、三刀一放和三刀二放 ,以及不同放煤工艺放煤试验的基础上 ,确定了放煤步距为 1 。
2) caving
放煤
3) drawing technology
放煤工艺
4) caving coal supporter
放煤支架
5) drawing interval
放煤步距
1.
The effects of different drawing intervaland top-coal fragmental size on flow character of coal-gangue and sand,and on mixed degree of coal and gangue were analyzed during drawing top-coal.
分析了不同放煤步距、顶煤块度对放煤过程中煤矸砂流动形态、混矸程度的影响。
2.
Feasible drawing interval is the basis to study mining equipment of fully-mechanize coal mining with caving method.
综放开采的合理放煤步距是研制综放工作面成套技术装备的基础,是提高综放工作面采出率与煤质的关键之一。
3.
Through observing on spot in compound mining face,the activity rule of roof coal is analyzed,the reason of roof coal crushing and distribution state are summrised,the reasonable drawing interval and questions noticed in roof and floor mannge are provided.
通过对综放工作面的现场观测 ,分析了顶煤的活动规律 ,总结出顶煤破碎的原因及分带情况 ,并提出合理的放煤步距及工作面顶底板管理中应注意的问
6) caving coal height
放煤高度
参考词条
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。