深部采煤底板突水成灾阈值及其研究意义

Disaster threshold value and its significance of floor water bursting out during deep coal mining activity

从煤矿实际生产需要出发,将煤矿底板突水分为突发性、大流量突水与长历时、小稳定流量突水。根据突水水源与导水通道的不同组合形式,判断底板突水的形式,对两种突水形式的水量变化特点进行了讨论。提出阈值的概念,并将其作为判断底板突水是否能够成灾的标志,对现有突水量预测的相关技术进行总结,给出了根据突水量预测结果设定阈值的方法,简单分析了阈值的实践意义。

Depend on the actual needs of coal mine production, divide floor water bursting out process as considerable water sudden inrush mode and little water steady seep mode, according to difference association of water source and seep channel decide the floor water bursting out mode. Discuss the water amout changing characteristic of the two mode, propose the concept of threshold and take it as the symbol on floor water bursting out disaster deciding. Discuss on the relevant existing inrush floor water amout forecasting technologies, propose water threshold deciding method on inrush water amout forecast results. Analysis the practical significance of floor water burstong out threshold.