short hole shrinkage 浅孔留矿
short hole shrinkage mining 浅孔留矿采矿法
Short-hole shrinkage method 浅孔留矿法
short-hole shrinkage mining 浅孔留矿法
short-hole shrinkage stoping 浅孔留矿法
short hole shrinkage stoping 浅眼留矿法
short-hole shrinkage stopping 浅孔留矿法
Short-hole shrinkage method without sill pillar occupies 60%.
无底柱浅孔留矿采矿法60%。
Short-hole shrinkage mining is an effective method for mining steep-thin veins, and it has advantages of high-efficiency and low-waste and simple technology.
浅孔留矿法对急倾斜薄矿脉的矿体开采是一种有效的采矿方法,具有高效低耗与工艺简单等优点。
The paper discusses the new options of short-hole shrinkage: all-over mining, static shrinkage, precipice shrinkage, rock mining conditions, active supporting and ore pillar recovery.
本文探讨了浅孔留矿祛新型变形方案:留矿全面法、静态留矿法、削壁留矿法,以及这些方法的矿岩开采条件,采场主动支护,矿柱回收等。
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