mining overburden 采动覆岩
overburden rock under mining 采动覆岩
mining overburden bed separation 采动覆岩离层
It expounds various mining methods and steps, including the bench demarcated, plan mining bench top and bottom floor, the coal and overburden amount of plan mining, and coal quality indicators.
阐述编制露天矿的各种开采计划的方法和步骤，以及其台阶划分、计划台阶顶底板的控制、编制剥离量和采矿量及其煤质指标等；
There exits bed separation zone above water-conducting crack zone overburden after coal mining.
煤层采后覆岩中的导水裂隙带之上存在离层带。
It is indispensability of overburden failure law for mining under buildings, water bodies and railways, especially mining under water bodies.
覆岩破坏规律探测是“三下”采煤，尤其是水体下采煤不可缺少的部分。
应用推荐