灰色关联分析在地下采空区危险度评价中的应用

Applications of the grey relation analysis in the evaluation of the risk degree of the underground mined-out stopes

首先介绍了灰色关联分析的基本思想和分析步骤,在找出影响采空区危险度的主要因素之后,确定各因素指标的权重,用灰色关联分析方法求出因素的关联度。最后通过实例分析,说明了该方法在评价采空区危险度中的科学性和有效性。

Basic thoughts and approaches of the grey relation analysis（GRA） are firstly introduced in this paper. GRA method is adopted to calculate grey relation grade and magnitude of the dangerous degree of the mined-out stopes, based on main factors of influencing the dangerous degree of the minded-out stopes and their weight. A practical example on the evaluation of risk degree of underground mined-out stopes, which proves the feasibility and effectiveness of GRA, can provide reference and a viable alternative for decision makers＇ sights of the whole disposal of underground mined-out stopes.