Analysis of safety cost of coal production and its changing trend
ZHANG Shi-qiang 1,2,PAN De-hui1 ,YAO Qing-guo2(1 College of Management, Northeastern University, Shenyang 110004, China; 2 Shandong University of Science & Technology, Qingdao 266510, Shandong, China)
Safety cost of coal production, a kind of additional cost in coal production, comprehensively reflects the quality of safety work in coalmine production. It is also an important index for safety decision-making and the appraisal of safety work. For coal enterprises, the uniqueness of safety work decides a high proportion of safety cost in coal production cost. Thus the research on safety cost of coal production and its changing trend is theoretically and practically significant for the improvement of the coordination between safety and production, as well as proper control of the safety investment and optimization of the safety cost composition. This paper provides an analytical index for safety cost in combination of theories and the practical coal production situations. With the field research and collected data, this paper analyzes the changing trend on safety cost by regression analysis, and establishes an analytical model for safety cost of coal production. The analysis of the model has concluded that the safety cost changes with the safety insurance degree. The analysis of the changing trend of the safety cost and the foundation of its relevant analytical model can provide an effective analytical approach to safety management and the corresponding decision-making.