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充分利用测井、排采资料,优选能够有效表征煤层顶板含水性的6个评价指标来构建排采出水量的预测模型,并以此模型对顶板出水量和含水性平面分布特征进行了划分。研究结果表明:所预测的煤层顶板出水量与实际排采吻合度较高;平面上,研究区5#煤层顶板南部含水性较强,呈现顶板厚层砂岩区出水量增大的态势。
Making full use of well logging and data mining, six evaluation indexes that can effectively characterize the water content of coal seam roof are selected to build a forecasting model of water discharge. The model is used to classify the top plate discharge and water distribution characteristics. The results show that the predicted coal seam roof water discharge is in good agreement with the actual discharge; in the plane, the water content in the south of roof of No.5 coal seam in the study area is strong, which shows that the water discharge in the thick sandstone area increases.