yinmin

The demolition technology of Yinmin Copper Mine goes through an unceasing evolution and change, so does the detonation system.

因民铜矿的大爆破工艺经历了一个不断演变与变革的过程，同时其起爆系统也经历了一个不断改进的过程。

The stability of south slope in Yinmin Coal and Electricity Company is analyzed and the stability of the slope is controlled by four weak layers and the restraining mining methods is effective.

对伊敏煤电公司露天矿南帮边坡稳定情况进行了实例分析，变形区边坡稳定性主要受四个泥岩弱层控制，采取内排压脚等控制开采的方法是有效的。