sublevel caving method [矿业] 分段崩落法 ; 无底柱分段崩落法
level caving method 分段崩落法
stage caving method 分段崩落采矿法
mass caving method 大量落矿采矿法
block caving method 阶段崩落法
caving method mining 崩落法采矿
Natural caving method 自然崩落法
longwall caving method 长壁式崩落法
Sublevel caving method without sill pillar is adopted in the south section of Fengshan Copper Mine.
丰山铜矿南缘采区应用无底柱分段崩落法采矿。
The paper is of important instructive importance to reduce loss and depletion by sublevel caving method without sill pillar.
并对今后无底柱分段崩落法降低损失贫化具有重要的指导意义。
The fundamental principle and mechanism about the technology of top-caving method with vibration are introduced in the paper.
详细介绍了振动放顶煤技术的原理和机理。
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