Research on the application of area safety assessment model in coal mine safety management

The safety evaluation granularity of the current coal mine safety monitoring and management system is basically at the mine level or subsystem level. It cannot be finely managed for different areas of the mine. In order to solve the above problem, a unified area division method is proposed for safety risk assessment based on the features of operational scenarios in various areas of the mine. This method combines information such as risks, hidden dangers, disasters with area operating conditions, equipment maintenance management, and personnel positioning to unify and organize data from various safety systems. A comprehensive assessment of the safety indicator system is conducted from four dimensions: human, machine, environment, and management. The weights of each indicator in the area safety assessment are calculated through a combination of subjective and objective weighting methods. The subjective weighting is achieved through the analytic hierarchy process, while the objective weighting method is achieved through the entropy weighting method. The method constructs an area safety assessment model, which quantitatively evaluates and classifies the current safety situation of coal mines. The method uses normalized fusion weights to calculate the basic safety score, and considers high-risk combinations, historical trend changes, and inter regional coupling effects to modify the score. The comprehensive safety scores of all levels of coal mine areas are obtained. This model has been successfully applied to the intelligent comprehensive control platform of Shaanxi Xiaobaodang Mining Co., Ltd.. It provides effective reference for accurately evaluating underground safety risks in coal mines and improving the level of coal mine safety management.