本文结合实例,应用数量化理论和正交设计两种数学方法,给出了煤层地质条件为不稳定状态下,如何利用微机确定煤层注水参数的最优组合方法。经考证,这种方法比较接近实际,能满足工程技术要求。 In this paper, two mathematical methods, quantitative theory and orthogonal design, are applied in this paper to give the optimal combination method of how to determine the parameters of water injection in coal seam with the geological conditions of the coal seam being unstable. After research, this method is more realistic, to meet the engineering and technical requirements.