Risk analysis of concrete pouring operation during high dam construction

Abstract

Due to the close connection of the high dam concrete pouring operation, the frequent risk evolution path of the personnel, construction machinery and the field environment is complex, which leads to high risk cost and frequent accidents. In order to reduce the operation risk and decrease the frequency of accidents, the risk theory needs to be utilized to analyze the risk of high dam concrete pouring operation. In this paper, we put forward the theory of risk interface framework and a fishbone diagram approach to analyze the factors of this operation. The general idea is that find the risk sources,describe risk interface and put forward the mechanism of high dam concrete pouring accident. Secondly, account forenergy carriers, after that the personnel, machine and environment are abstracted as the energy carriers or thedangerous energy carriers, the risk factors are identified. Then risk analysis is carried out according to the theory of risk interface. Meanwhile classify the risk factors according to fishbone diagramand their respective categories. The final risk analysis shows that thedangerous energy carriers are frequently interacted with each other and the risk factors are complex, and the possibility of accidents is extremely high in high dam concrete pouring operation.