突水系数法和板模型理论在煤层底板裂隙突水可能性预测中的应用

摘要

以袁店煤矿为例，从煤层底板岩石力学性质、底板隔水特征及底板岩性组合三个方面对煤层底板裂隙特征进行分析，同时采用突水系数法和板模型理论两种方法对煤层底板裂隙突水进行预测。两种预测结果均显示，在开采条件下煤层底板存在突水的可能性，开采该煤层时要制定合理的防水措施。%With Yuandian Coal Mine as an example,the authors of this paper have analyzed the characteristics of coal seam floor cracks from three aspects:the mechanical properties,the water-proofness and the lithological combination of the coal seam floor.They have also predicted the water inrush from coal seam floor cracks with the water inrush coefficient method and plate model theory.The results of the two predictions show that there is possibility of water inrush from coal seam floor cracks under mining conditions,and precautionary measures should be taken when the coal seam is mined.