1) crater retreat blasting
分层崩矿
3) avalanche law of leave ores and divide layer
留矿与分层崩落法
5) slicing and caving
分层崩落法
1.
According to slicing and caving, the layer thickness of primary mining is not less than 4 - 6 m of caving rock layer.
分层崩落法采矿,首采分层厚度不小于4-6m崩落岩石垫层,随着分层的下降覆盖缓冲层厚度应在8 -9m,其覆盖层厚度不小于20m。
6) substoping and caving
分阶段崩落采矿
补充资料:崩分
1.犹言分崩离析。
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