Evaluation of stability of filling system based on GRA-SPA coupling model

doi:10.16265/j.cnki.issn1003-3033.2018.04.017

Abstract

Abstract: In order to prevent accidents in filling systems of coal mines, the stability of a filling system was studied using the theory of set pair analysis and the grey relational analysis. Firstly, a stability evaluation index system was constructed for the filling system, and the weight of each indicator was determined by the method of AHP. Secondly, a GRA-SPA coupling model was built. The stability level of the filling system was determined, and the trend in its development was forecasted. Then, the countermeasures for improving the stability of the filling system were proposed. The results show that the filling system is "relatively stable", and there is a weak tendency to be "stable", so the monitoring of the filling system should still be strengthened, that the model not only can quantify the identity, difference and opposition of the index factors by the linkage coefficient, but also can get the evaluation conclusion consistent with the actual situation, and that this method can provide a reference for safety management of filling system.

Key words: coal mine, filling and mining, filling system, grey relational analysis(GRA), set pair analysis(SPA), stability evaluation

CLC Number:

X936

SHI Junwei, CHEN Zhangliang, WU Changyou, SHEN Yingying. Evaluation of stability of filling system based on GRA-SPA coupling model[J]. China Safety Science Journal, 2018, 28(4): 97-102.

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