模糊综合评判在深部煤层稳定性评价中的应用

运用模糊综合评判方法,结合深部煤层埋藏特点,选择煤层厚度的变异系数、煤分层的变异系数、煤层灰分产率的变异系数和煤层厚度不可采性指数作为评判因素指标,确定了各因素的隶属函数,对矿井深部煤层的稳定性进行定量评价,取得了符合实际情况的评价结果,为矿井深部煤层开采提供了理论依据。

Application of Fuzzy Synthesis Judgment in Evaluation of Deep Coal Seam Stability

Quantitative evaluation for deep coal seam stability was carried out in Kailuan coal field by adopting fuzzy synthesis evaluation, combining the occurrence characters of deep coal seams, selecting variation coefficients of coal seam thickness, coal slice and ash generation rate and taking the nonmineable index of the seam thickness as the evaluation index, the subjective functions for these indexes were determined. The evaluation results suitable for the actual conditions of the mine were obtained, this thus provided theoretical basis for the mining of deep coal seams.