CW-TOPSIS岩爆评判模型及应用

Rockburst evaluation model and application of CW-TOPSIS

针对岩爆评判模型中指标权重难以确定问题,提出一种"AHP+熵权法"组合赋权方法,引入Lagrange函数和欧氏距离函数,保证了主、客观权重与其差异程度相一致,最终获得理想的综合权重;基于逼近理想解排序法(technique for order preference by similarity to an ideal solution,TOPSIS)的基本理论建立CW(combined weights)-TOPSIS综合评判模型并预测岩爆等级。实例应用结果表明,CW-TOPSIS岩爆评判模型的预测结果与实际相吻合,进一步验证了该模型的有效性及实用性,从系统评价、多因素指标角度为岩爆预测提供了一种切实可行的途径。

To solve the problem that the index weight is difficult to be determined in rockburst disaster assessment mod- el, a combination weighting method of ＂AHP ＋ entropy weight method＂ was proposed. The optimization comprehen- sive weight was established by introducing the Lagrange and Euclidean distance function, ensuring the consistency be- tween the subjective, objective weight and the preference coefficient. Based on the basic theory of TOPSIS, a compre- hensive evaluation model of CW-TOPSIS was established and applied to predict rockburst grade. The results of a case study showed that CW-TOPSIS rockburst evaluation model were consistent with the insitu actual conditions which fur- ther verified the validity and practicability of the model. The proposed method provided a feasible way for the rockburst prediction from the angle of system evaluation model and gulti-factors indexes.