针对资源整合矿井掘进期间揭露旧巷或采空区时,有害气体短时间大量外泄导致作业地点有害气体超限的问题,根据旧巷或采空区不同的特点,经过多次实践总结运用了局部增压法和负压牵引洗巷法,现场应用结果表明:以上方法施工周期短、费用和风险低且效果显著,为资源整合类矿井在老空区有毒有害气体治理方面提供了参考。 According to the different characteristics of the old lane or gob area, after a lot of practices, the problem of exposing the old lane or gob area during mine excavation during resource excavation resulted in a large amount of harmful gas being leaked in a short time. The local pressurization method and the negative pressure drawdown method show that the above method has short construction period, low cost and low risk and significant effect, which provides a reference for resource integrated mine in the treatment of toxic and harmful gases in the old area.