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针对井下采空区岩石冒落形成的多孔隙介质空间的极度不规则性,提出了模糊渗透系数的概念,建立了一种以模糊分析和模糊微分方程为基础的及各种边值为条件的,计算采场气体模糊渗流问题的数学模型;研制了相似模拟模型,针对采空区自然发火问题和工作面上隅角瓦斯治理进行了多项模拟实验。研究成果为预防采空区自然发火和综采工作面上隅角瓦斯治理提供了有效的途径,对采场内自然发火位置的预测和工作面瓦斯治理有较好的理论价值和指导意义。
Aiming at the extreme irregularity of the porous media space formed by rock fall in mined-out area, the concept of fuzzy permeability coefficient is put forward. Based on the fuzzy analysis and fuzzy differential equation, , A mathematic model of stope gas fuzzy seepage problem was calculated. Similar simulation models were developed, and a number of simulation experiments were conducted for the problem of spontaneous combustion in goaf and gas treatment in the upper corner of working face. The research results provide an effective way to prevent spontaneous combustion of goaf and gas control in the upper corner of fully mechanized coal mining face, and have theoretical value and guiding significance for predicting spontaneous combustion location and gas control in workface.