Full
Outline
In response to the complexity and ambiguity of safety evaluation for coal mine electromechanical systems, interval approximation theory was introduced to improve the objectivity and reliability of evaluated results, and a comprehensive safety evaluation model for coal mine electromechanical systems based on G1-FDEMATEL-interval approximation was established. Firstly, according to the theory of accident causation intersection, 17 indicators were filtered from the four dimensions of human, machine, management, and environment to construct an evaluation system. Secondly, the G1-FDEMATEL method was coupled to obtain the comprehensive weights of indicators. Based on the principle of interval approximation, the interval estimation method was used to determine the evaluation data of indicators, which compensated for the limitation of discontinuous point estimation values and information missing in traditional models. By calculating the comprehensive distance, the safety level of coal mine electromechanical systems was determined. Finally, taking 5 coal mines as examples, the G1-FDEMATEL-interval approximation model was applied to analyze the safety status of the electromechanical systems. The results show that the safety levels of the electromechanical systems in all five coal mines were relatively safe, consistent with the expert conclusions. Compared with traditional VIKOR and TOPSIS models, it can effectively reflect the true safety status of the electromechanical systems, verify the adaptability and scientificity of the models, and provide a theoretical support for preventing and handling electrical system safety accidents.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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