论文部分内容阅读
采用高效技术和先进工艺实现的地下铁矿强化开采,更进一步促进了矿井采矿作业向深部发展。现今个别矿井的采矿作业已在大于1000m 的深度进行。在这种条件下,正如空气负压测定结果表明,巷道通风的压力损失显著增加,致使进入矿井的新鲜空气大为减少。现代铁矿深矿井的特点是:通风网巷道长度大和采矿作业面布置复杂。
The intensive mining of underground iron mines, which are implemented with high-efficiency technologies and advanced technologies, have further promoted the deep-seated development of mining operations in mines. Today’s mining operations in individual mines have been conducted at depths greater than 1000 m. Under these conditions, just as the results of air-pressure measurements show a significant increase in pressure loss in the ventilation of the roadway, the amount of fresh air entering the mine is greatly reduced. Modern iron ore deep mine is characterized by: ventilation network roadway length and mining complex layout.