System dynamics modeling and demonstration of safety level of production logistics of coal mine
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摘要: 针对煤矿生产物流安全水平指标权重的确定存在主观性较强的问题,采用熵权法确定各项安全水平指标的权重,应用系统动力学方法对安全水平影响因素进行了动态仿真,同时对比分析了各因素对煤矿生产物流安全水平的影响程度。仿真结果表明,机械化程度和巷道环境的实际作用率最大,因此,提高机械化水平,加强巷道环境安全水平是提升煤矿生产物流安全水平的重点。Abstract: In view of problem of strong subjective element in determination of index weight of safety level of production logistics of coal mine, entropy weight method was used to determine index weight of safety level, system dynamics approach was applied for dynamic simulation of factors affecting safety level, and incidences of various factors affecting safety level of production logistics of coal mine were contrasted and analyzed. The simulation results show that degree of mechanization and roadway environment have the maximum practical activity ratio, therefore, improve degree of mechanization and strengthen the safety level of the roadway environment are the keys to improve safety level of production logistics of coal mine.
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