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针对实际井巷风量的波动变化特点,提出了风阻波动和风阻漂移的概念,从而将井巷风量变化划分为风量波动和风量漂移;构建了风量变化溯源分析的数学模型和“遍历式”求解方法;将数学模型及其求解方法应用于示例矿进行数字实验,算例计算结果找出相应的风阻变化巷道,且计算的风阻变化量与实际风阻变化量的误差在1%以内,验证了模型和计算方法的正确性。
According to the variation characteristics of wind volume in actual borehole, the concepts of wind resistance fluctuation and wind resistance drift are put forward to divide the variation of wind flow in the borehole into wind flow fluctuation and air flow drift. The mathematical model of air volume change traceability analysis and “traversal” The mathematical model and its solving method are applied to the numerical experiment of the example mine. The calculated result of the example finds the corresponding laneway with change of wind resistance, and the error between the calculated wind resistance variation and the actual wind resistance change is less than 1% Correctness of the model and calculation method.