對(duì)兗礦集團(tuán)Y煤礦突水的安全評(píng)價(jià)研究
[Abstract]:In recent years, with the continuous increase of mining depth in coal mine production, water inrush in coal mine is becoming more and more serious, and water inrush accidents often occur, which brings great loss to people's lives and property. In this paper, the fuzzy mathematics theory is applied to the safety evaluation, and it is the first time to comprehensively evaluate the safety degree of water inrush in coal mines in China, which has a certain guiding significance for the research and prevention of water inrush in coal mines in China. After analyzing and studying many safety evaluation methods, this paper chooses the expert investigation method, the analytic hierarchy process method and the fuzzy comprehensive evaluation method. Based on the theory of accident cause and the principle of hierarchy method, the comprehensive identification of the dangerous sources affecting water inrush in coal mines is carried out, and a comprehensive evaluation index system of water inrush safety in coal mines is constructed. On the basis of this, qualitative and quantitative study was carried out on the influencing factors in the index system. In this paper, the safety evaluation of 23 factors of 5 categories as the main factors affecting the water inrush in coal mines was carried out. Firstly, the membership degree of fuzzy evaluation index is determined by expert investigation method, and the weight of all evaluation indexes is determined by analytic hierarchy process (AHP) (AHP). Then the fuzzy comprehensive evaluation system is constituted by combining the fuzzy mathematics theory with the hierarchical method, and the evaluation system is applied to the evaluation process of water inrush safety in Y coal mine. Therefore, the fuzzy vector set A = [0.3267U 0.3365U 0.2048U 0.1210U 0.0119] of water inrush in Y coal mine is obtained. According to the principle of maximum membership degree, the safety grade of water inrush in Y coal mine belongs to class B (better).
【學(xué)位授予單位】:中北大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類號(hào)】:TD745
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