基于层次分析法的冲击地压模糊综合评价

针对煤岩冲击地压存在非线性、模糊性以及不确定性、评价指标繁多而复杂的问题,提出基于层次分析法多指标模糊综合评价冲击地压的方法。通过层次分析法分析各指标的前兆特征与冲击地压联系程度,从声发射、红外辐射、煤岩性质三方面确定煤岩冲击地压模糊综合评价指标及权重,运用模糊综合评价所得评价结果来表征冲击地压危险等级,并通过实验模拟矿区冲击地压发生过程,结果表明综合评价结果与实验结果较为吻合,验证所建立模型的准确性。

Fuzzy Comprehensive Evaluation of Rock Burst Based on Analytic Hierarchy Process

Aiming at the problems of non-linearity, ambiguity and uncertainty of rock burst impact ground pressure and numerous and complexity of evaluation indexes, propose a method of impact ground pressure based on analytic hierarchy process. Analytic hierarchy process is used to analyze the relationship between the precursory characteristics of each index and rock burst. The fuzzy comprehensive evaluation index and weight of rock burst are determined from three aspects: acoustic emission, infrared radiation and coal rock properties. The evaluation results obtained from the fuzzy comprehensive evaluation are used to represent the dangerous grade of rock burst, and simulated the process of rock burst in mining area by experiments. The results show that the comprehensive evaluation is feasible and in good agreement with the experimental results, verify the accuracy of the model.