• According to the technical mining condition in Hua Changgou Gold Mine, the short hole shrinkage mining was chosen.

    根据厂沟金矿矿体的开采技术条件选用了孔留矿采矿法回采。

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  • Short-hole shrinkage method without sill pillar occupies 60%.

    无底柱浅孔留矿采矿60%。

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  • 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.

    本文探讨了浅孔留新型变形方案:留矿全面法、静态留矿法、削壁矿法,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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  • Based on the existing conditions, Pindu Municipal Gold Mine preferred short-hole shrinkage stoping without sill, intermediate and crown pillar to other mining methods and obtained excellent result.

    平度市金矿利用现有条件,因地制宜采用“三无”即底、间、矿柱浅扎留,收到了效果

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  • 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.

    孔留法对急倾斜薄矿脉的矿体开采一种有效的采矿方法具有高效低耗工艺简单等优点

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  • 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.

    孔留法对急倾斜薄矿脉的矿体开采一种有效的采矿方法具有高效低耗工艺简单等优点

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