针对煤层底板突水的主要影响因素,综合考虑水源、水压、隔水层、底板采动导水断裂带深度、断层等因素的影响,基于Fisher判别分析理论,利用国内一些采煤工作面底板突水资料作为训练样本,建立了煤层底板突水预测的距离判别分析模型。工程应用表明,该模型结果与实际情况吻合良好,说明该模型在煤层底板突水预测中具有良好的实用性和有效性。 Aiming at the main influencing factors of water inrush from seam floor, considering the influences of water source, water pressure, aquifuge layer, the depth of aqueduct and the fault and other factors, based on Fisher discriminant analysis theory, Water inrush data is used as a training sample to establish a distance discriminant analysis model of coal floor water inrush prediction. The engineering application shows that the model is in good agreement with the actual situation, which shows that the model has good practicability and effectiveness in predicting water inrush from coal seam floor.