Study On Safety Risk Management Of Yinjiang River Water Conservancy Project

This paper discusses and studies on the safety risk management issues during the operation of Taizhou Yinjiang River water conservancy project in detail.The main research contents include:Briefly introduce the operation overview of Yinjiang River water conservancy project,and start from the status quo of the operation of the water diversion project,and combine the accident data of other diversion projects,relevant data of the diversion river water management office,and the results of consultation with the staff of the management office.Summarized the three major categories of safety risks: equipment and facilities,operators,and safety management,and subdivided them into eight categories with a total of 84 safety risk factors.The first step in the evaluation of safety risk factors is its empowerment.According to the characteristics of the Yinjiang River water conservancy project,a subjective weighting method—AHP was selected.In order to avoid the subjectivity and randomness of the AHP method,an objective weighting method—Entropy method was introduced.The entropy method is used to assign different weights to the experts who scored the analytic hierarchy process,and then the weights obtained from the two methods are weighted and fused to obtain the hierarchical entropy method.Finally,MATLAB is used as a tool to determine the weight of each risk factor.In order to synthesize the differences between each expert,use the entropy method to weight the experts,select "ideal experts",and use the differences between other experts and "ideal experts" as their information entropy.Experts assign different weights.Using MATLAB to calculate the entropy weight of each expert,and weight it with the expert's weighting of safety risk factors to obtain the final weight of each safety risk factor.After obtaining the weight of each safety risk factor,perform safety risk assessment.For fuzzy concepts such as "safety" or "dangerous",the fuzzy comprehensive evaluation method is used to quantitatively analyze subjective problems.Starting from the two dimensions of safety risk rate and severity of safety risk consequences,a safety risk evaluation benchmark and a single factor evaluation benchmark were established.Continue to divide the entire system into three subsystems: equipment and facilities,operators,and safety management.Four experts,eight leaders of the management office and eight staff of the management office were invited to conduct single-factor evaluation and voting.The voting results are normalized and transformed into a membership matrix.The (·,+)type operator is used to fuse the membership matrix with the weight vector to obtain the risk evaluation vectors of the three subsystems.Then,the evaluation value of each system is calculated from the scores corresponding to different comments.The evaluation value is compared with the established safety risk evaluation benchmark to determine the degree of safety risk of each subsystem.The three subsystems are integrated to establish the safety risk assessment membership matrix of the entire system.Combining the weights of the three subsystems,the (·,+)type operator is also selected for fusion calculation to obtain the risk evaluation vector and the system's safety risk evaluation value,so as to judge the safety risk of the entire system.Finally,based on the results of analysis and evaluation,combining the weights of various risk factors and the background of the water conservancy project,control measures for possible major risk accidents are proposed to achieve the purpose of reducing risks and controlling risks.