1) open-stope & shrinkage mining
空场留矿
2) open stope & shrinkage mining
空场留矿法
1.
To exploit these veins,improved methods of pillar-and-room full-advanced open-stope mining and sublevel open stope & shrinkage mining have been tested with satisfactory results.
根据矿脉地质条件的不同 ,探讨了改进型的采矿方法 ,即房柱全面矿块空场采矿法和分段空场留矿法 ,并获满意效果。
3) Down-the-hole shrinkage-cavity working subsequently backfilling
浅孔留矿-空场嗣后充填
4) sublevel full shrinkage pillar open stoping
分段全面留矿房柱空场法
5) open stope method
空场采矿法
1.
The mined-out area originated from the application of open stope method should be treated by back-filling,caving or supporting when its volume or area reaches a certain quantities.
空场采矿法所形成的采空区 ,当其体积或面积达到一定数量之后 ,应使用充填、崩落或支撑等方法进行处理。
2.
The analogous frame structure to treat mined out area in the application of open stope method is composed of artificial sill pillar,artificial intervening pillar and some low graded ore pillar.
空场采矿法使用的类框架结构采空区新型处理技术 ,由人工底柱及人工间柱与一些低品位矿石柱组成类框架 ,而在垂直方向上支撑上下盘围岩并起到隔离空区作用的人工间柱 ,其回采方法与构筑工艺紧密相连 ,规格尺寸也各不相同。
6) rock pressure model of gob-side entry
沿空留巷矿压模型
补充资料：留矿采矿法
见自然支护采矿法。
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