煤层注水压力对注水效果的影响研究

摘要

分析了注水压力在煤层注水中的作用，对试验煤矿掘进工作面煤层注水进行了数值模拟，得出煤层注水压力与压裂过程中煤体破裂程度之间的变化关系。运用模拟结果对试验煤矿工作面的注水压力进行优化，取得了较好的效果。为选择适当的煤层注水压力提供了一种方法。%In this paper, analysis was made on effect of water pressure in coal seam water infusion, numerical simulation was carried out on the seam water infusion in a heading face in the experimental mine, and the variation relation between the water infusion pressure and the coal breaking degree in the fracturing process was obtained. The simulated results were used to optimize the water infusion pressure in the coal face of the mine, better effect was achieved. This thus provided a method for the selection of the appropriate infusion pressure.