Analysis of intervention strategies for coal miners' unsafe behaviors based on analytic network process and system dynamics

In recent years, the safety situation in Chinese coal mine enterprises has been steadily improving, however, major accidents occur occasionally. Statistics reveal that human unsafe behaviors are the main cause of accidents. In this paper, based on the Fishbone Diagram, the influencing factors of unsafe behaviors of coal miners were identified from 5 aspects including individual factors, physical environment, safety leadership, safety management, and group factors. Next, the indicators system of influencing factors of unsafe behaviors for coal miners was established, and the weights were analyzed by the Analytic Network Process (ANP). On that basis, the primary and secondary indicators of the influencing factors were ranked. The weights determined by ANP were taken as the influencing coefficients between variables, and the System Dynamics (SD) model of the unsafe behaviors of coal miners was established. The related simulations were also conducted on the intervention strategies using this model. By combining the weights determined by ANP and the simulation results based on the established SD model, the influencing factors identified were reordered. Finally, this paper proposed the combination intervention strategies mainly from the aspects of safety management, individual factors, group factors, safety leadership and physical environment, which can provide theoretical supports and method guidance for improving the safety production level of coal miners.