自然崩落法放矿基本上都是在覆盖岩层下进行的。
The process of ore- drawing in block caving is completed under overburden.
本文论述了阶段自然崩落法的几个岩体力学问题。
This paper discusses some geomechanics problems in block caving.
铜矿峪铜矿在自然崩落法采场中，建立了一整套简便易行的矿体崩落状态监测系统。
Tonkuangyu Copper mine sets up a set of simple and convenient monitoring system of orebody caving state in the mine stope to use block caving method.
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