匈牙利采煤的机械化程度高于掘进。使用良好的掘进工具和逐步实现巷道掘进机械化,不仅能提高巷道掘进生产率并可适应与促进回采速度。波索德煤矿公司黑山谷Ⅰ号井(样板矿井),利用不同的巷道掘进和回采速度资料绘制成图1。从图中可以清楚看出,在回采工作面长度已知情况下,任一回采速度最低应具有 Coal mining in Hungary is more mechanized than tunneling. The use of good driving tools and the gradual realization of roadway mechanization can not only improve the productivity of roadway driving and can adapt to and promote the recovery rate. Potosite Mine Company Black Valley No. I well (model mine), the use of different roadway heading and mining speed data drawn into Figure 1. It can be clearly seen from the figure that when mining face length is known, the minimum speed of any mining should have