1) uphill and aowhill mining
上下山联合开采
2) up-pit and down-pit mining method
上、下山开采方式
3) coal cutting up and down
采区上(下)山
4) winning to the top
沿上山开采
5) rise heading drivage,rise driving
上山开采法
6) combined mining
联合开采
1.
Research and practices on combined mining for seams with closed distance;
近距离煤层联合开采设计研究与实践
2.
New combined mining technology for steeply inclined short-interval thick coal seams;
急倾斜近距离厚煤层联合开采新工艺
3.
Study on combined mining and exploration for the thin coal seams very close under gob water;
极近距离老空水下薄煤层联合开采探测研究
补充资料：下山掘进
从井下某开采水平沿煤层、矿体或沿底板岩层向下开凿缓倾斜或倾斜巷道的作业，作为提运煤、矿石或矸石、行人、运料、通风、排水等用。其断面大小根据用途而定。施工工艺见斜井掘进。
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