Study on the Risk Assessment of the Tailings Dam Break

Public pay more and more attention to how to ensure the safety of tailings dam downstream residents and property. This article establishes a risk evaluation system which bases on the tailings dam failure probability analysis and dam failing consequence assessment. The tailings dam failure mode is established through the research of tailings dam failure mechanism. Meanwhile established the tailings dam stability assessment index system, applied the set pair analysis to assessment the stability of the tailings dam; established the controlling equation, simulated the routing and movement of tailing flow in the downstream after tailings dam break, investigated the distributions of personnel and structures in the influence range, use comprehensive factor weighted method to construction the tailings dam break serious consequences evaluation model, the model considered the tailings dam scale, loss of life, economic losses and social environment impact, points out key point and the difficulty of the tailings dam break impact research, the tailings dam for precise quantitative risk assessment is very difficult, the risk assessment index is a kind of qualitative risk analysis methods,established the tailings dam risk assessment software based on risk assessment index methods.