【摘要】 以多孔介质渗流理论为基础，视采场气体流动为非稳定流问题，将应用数学中的奇异摄动理论应用于采矿问题中，为采矿工程问题的研究提供了新的手段；为矿井安全工程、特别是实现自动监控提供了理论依据和计算方法，丰富了采场通风理论。结论表明：用非稳流模型来描述采场通风问题，可获得动态流动特征。对照以往方法，这种动态描述无疑可促进矿山安全问题的理论研究。更多还原

【Abstract】 Based on theory of porous medium seepage, the airflow in mine workings is regarded as a problem of unsteady flow. Singular perturbation theory of applied mathematics is introduced to solve mining problems which provides new means and tool for mining projects. This method provides theoretic basis and calculating method for mine safety projects, especially for automatic monitoring. It has enhanced the ventilation theory. The conclusions illustrate that if ventilation in the workings is described by a model of unsteady flow, the dynamic flow properties can be found. As compared with the former method, the dynamic description can promote the research of mine safety.更多还原