近水平煤层覆岩导水裂隙带高度预计与实测

Prediction and Actual Measurement of Water Flowing Fractured Zone Height in Overburden Strata of Flat Seam

为了准确预测青龙煤矿11607工作面开采后覆岩导水裂隙带的发育高度,以该矿实际地质开采条件为依据,采用灰色神经网络、经验公式计算方法,对其导水裂隙带高度分别进行了预测,并与现场实测结果进行比较,结果表明,基于灰色神经网络的预测结果比经验公式计算的结果更接近实际,并综合分析比较得出青龙煤矿11607工作面煤层的覆岩导水裂隙带高度为44.4~46.9 m。

In order to exactly predict the development height of the water flowing fractured zone in the overburden strata after the mining of11607working face in Qinglong Coal Mine,the height of the water flowing fractured zone was respectively predicted according to the practical geological and mining conditions of the mine and by using the grey neural network and the empirical formula,and the predicted results was compared with the site measured results.The results showed that the predicted results based on the grey neural network were more closer to the actual ones than that based on the calculation with the empirical formula,and it was concluded from the comprehensive analysis and comparison that the development height of the water flowing fractured zone in the overburden strata of11607working face in Qinglong Coal Mine was about44.4m to46.9m.