1) wedge pillar mining method
刀柱法采煤
2) longwall-pillar mining
刀柱采煤法
1.
Longwall mining beneath the area mined with longwall-pillar mining method in ultra-close multiple-seams is the distance of the two coal seams is very short, superstratum coal seam use longwall-pillar mining method, underlayer coal seam use longwall mining.
极近距离煤层刀柱采空区下长壁开采法是指两层煤层的层间距离很近，上层煤层采用刀柱采煤法进行回采，下层煤层采用长壁采煤法进行回采。
3) reamer-pillar coal mining method
刀柱式采煤法
1.
According to the analysis of geological conditions in Jinrong Coal Mine and the characters of reamer-pillar coal mining method,the construction arrangment,carrying coal systems,excavating coal technigue of the reamer-pillar coal mining method are specifically introduced.
通过对晋荣煤矿地质条件的分析,结合刀柱式采煤方法的特点,详细介绍了刀柱式采煤法的施工布置、运煤系统、采煤工艺等在晋荣煤矿一1煤层的应用,有针对性地提出了在回采过程中采取的安全技术措施。
4) knife column recovery coal mining
刀柱回采遗留煤体
5) long-pillar working
留大煤柱开采法
6) splitting method of pillar recovery
煤柱分隔回采法
补充资料：法刀
1.刽子手行刑的刀。
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