【摘要】 建立了非饱和－饱和二维非稳定渗流的煤层长孔注水湿润问题的动态数学模型，用有限元数值解法求解．用非饱和吸附理论构造了湿润过程中煤体贮水系数、导水系数与湿润压力的关系，其中参数识别用最优化算法与现场注水试验结果进行反求拟合获得．实例计算表明，模拟湿润状态符合注水煤层的湿润情况．更多还原

【Abstract】 A dynamic mathematical model of a coal seam damped by long hole water infusion was established to solve problems of coal seams with a non saturated and saturated 2D unstable vadose. The finite element method was applied to solve the problems. The non saturated absorption theory was used to construct the relation of water storage coefficient, water flowing coefficient and pressure in coal solid. Identification of the parameters was made by optimal algorithm and by fitting the calculated data to the data obtained by reverse regression of the test data. The calculation showed that the simulated conditions coincide with that of the seams with water infusion.更多还原