基于客观优化组合赋权模型的煤层底板突水预测评价研究

Prediction and Evaluation of Coal Floor Water Inrush Based on Objective Optimization Combination Weighting Model

为了解决预测煤层底板突水过程中存在的评价指标因素繁多、非线性、不确定性和互相交叉影响的问题,而造成煤层底板突水预测评价困难的问题,针对单一客观赋权评价中的缺陷,提出了一种基于客观优化组合赋权模型的煤层底板突水预测评价。首先,基于层次分析法确定煤层底板突水的主控因素,再运用熵权法和复相关系数法对主控因素进行客观赋权,构建客观优化组合赋权模型。结果表明:该模型更能客观反映主控因素的特征,优化客观赋权模型中评价指标因素的权重,从客观合理程度上最大体现出评价指标因素间的差异程度,实现煤层底板突水的量化科学评价。

To solve the problems of various, non -linear, uncertain and cross -influencing evaluation indexes in predicting water inrush from coal seam floor, this paper proposes a coal seam floor water inrush prediction and evaluation method based on objective optimization combination weighting model is proposed for the defects of single objective weighting evaluation. The results show that the model can better reflect the characteristics of the main control factors, optimize the weight of the evaluation index factors in the objective weight model, and reflect the difference degree of the evaluation index factors to the largest extent from the objective and reasonable degree, and realize the quantitative scientific evaluation of the water inrush from coal floor.