Hazard Identification and Risk Decision-Making System of Tailings Storage Facilities based on Complex Networks

In order to evaluate the risk and prevent the accidents of tailings storage facilities, a hazard identification and risk decision-making system for tailings storage facilities is proposed in this paper. Firstly, based on the evidence, such as laws, standards and accident cases, the system can identify the hazard in each stage of tailings storage facilities life cycle. Secondly, various detection equipment and sensors are used to monitor the hazard nodes, and then the complex network is used to describe and analyze the hazard nodes and their risk evolution process. On the basis of many simulations and attempts, the risk decision-making which is technically feasible, economically reasonable and socially acceptable is obtained. The system consists of four subsystems: hazard identification and monitoring subsystem, risk evolution and analysis subsystem, risk evaluation and decision-making subsystem. The system can analyze and evaluate the potential accidents and risk evolution of tailings storage facilities and make corresponding risk decisions according to different acceptable risk levels. It provides a new idea and method for the safety management of tailings storage facilities operations.