基于因素空間的煤礦危險源多層遞階模型
[Abstract]:In the process of coal mine production in China, it is difficult to identify, express and quantify the coal mine dangerous sources, which makes the screening of main control factors and risk pre-control management in the safety evaluation of coal mine production system lack of objective and effective basis. At present, there are few methods for evaluating and quantifying the safety state of production system by using the hazard information of coal mine production site. Based on the multi-level hierarchical model of coal mine hazard source, this paper studies the method of describing the multi-level hierarchical logical structure of coal mine hazard source, constructing the space of coal mine risk source factor and quantifying the safety state of coal mine production subsystem. Firstly, according to the theory of coal mine hazard identification, the system engineering theory is applied to analyze the characteristics of multi-level hierarchical logic structure of coal mine hazard source. Based on the logical structure, the coal mine hazard source with hierarchical subordination is divided into top layer, system layer, working procedure layer, main control risk factor layer and bottom five layers, and a multi-level hierarchical model of coal mine hazard source is established. Secondly, according to the hierarchical subordinate relationship of coal mine hazard information and the characteristics of space-time variability, based on the systematic dimension, factor and time dimension of coal mine hazard source, the three-dimensional multi-granularity and decomposition model of coal mine hazard source is established by using Hall three-dimensional structure model. The spatial structure of coal mine hazard source is logically expressed, which is convenient for the classification and screening of risk source information, and the definition and realization mechanism of coal mine hazard source space are put forward according to the theory of factor space. Finally, based on the coal mine hazard factor space and multi-level hierarchical model, the evaluation index system model of coal mine dynamic system safety state is established, and the process layer index is quantified. The multi-level hierarchical system safety evaluation model of coal mine hazard source is established by using entropy weight method and grey relational analysis method, which provides an effective basis for quantitative analysis of safety state and risk pre-control of coal mine production subsystem. By using this model, the hazard source identification and system safety evaluation of Nanliang mining tunneling system were studied from January to June 2014, and good results were obtained. The security state of the system was raised from the general security of the previous 3 months to the safer state of the following 3 months. The application analysis shows that the establishment of multi-level hierarchical model of hazard source expresses the logical structure of coal mine hazard source system, which is convenient for system safety state quantization and system safety main control factor extraction. The application of system dynamic evaluation promotes the continuous improvement of coal mine risk pre-control and management, and helps to improve the level of coal production safety management.
【學位授予單位】:西安科技大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:TD771
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