Construction Safety Risk Analysis Based on MC-IAHP

In order to objectively and accurately quantify construction risk and solve the problems, such as the lack of construction safety risk analysis system and the lack of objectivity, is proposed based on Monte Carlo (MC) and the Improved Analytic Hierarchy Process (IAHP) security risk analysis methods. The risk factor system was constructed by combining behavioral safety theory and human-machine-environmental management system theory, the risk probability loss function is constructed, the objective weight of risk factors is obtained through sensitivity calculation, the subjective weight of risk factors is calculated by improved analytic hierarchy process, and the proportion of main and objective weights is determined by difference coefficient method, so as to establish a multivariate coupling risk assessment model. Through example verification, the results show that this method can effectively analyze the construction risk state, determine the key risk factors, and provide a reference for the development of safety management countermeasures.