灰色关联分析在岩体可爆性分级中的应用

Application of Grey Relational Analysis in the Blastability Classification of Rock

岩体可爆性分级指标权重的确定直接关系到岩体的可爆性等级,从而影响到爆破效果和成本。采用灰色关联分析方法,可以避免主观因素对权重确定的影响,更客观的体现各个分级指标对可爆性分级的贡献。在某铁矿,运用灰色关联分析方法,确定了4个可爆性分级指标的权重,准确地对岩体进行了可爆性分级,从而验证了这一方法的可行性。

for the blastability classification of rock, the weight of every classification index has a great impact on the determination of rock blastability, and therefore influences the effect and cost of blasting. The grey relational analysis method can reflect the contribution of every index to the blastability classification more objectively so can avoid the impact of subjective factor on the determination of weights of the indexes. In some iron mine, this method is introduced to determine the weights of the four indexes, and the blastability classification of the rock have been made out exactly. The result verifies the feasibility of this method.