电力建设工程施工过程风险的可拓优度评价

Risk Assessment of Power Construction Process Based on Extension Superiority

为有效地减少电力建设工程施工(简称为电建工程施工)过程中发生事故的概率,将可拓优度方法应用于电建工程施工过程的风险评价。首先根据现有的研究成果,构建电建工程施工风险评价指标体系;然后依据该体系设计问卷调查表进行专家问卷调查,并邀请专家对某公司下属5个电建工程项目施工过程的风险因素进行打分;最后结合其中某一电建工程项目的得分情况,得到该电建工程施工过程的风险评价值,对该电建工程施工过程的风险进行可拓优度评价,并运用层次分析法和改进的熵权法确定各风险因素的综合权重,利用关联函数确定风险等级,结果表明该电建工程施工过程的风险等级为较安全。该评价方法实现了电建工程施工过程风险评价的定量化,为电建工程施工过程的风险评价提供了新思路。

In order to effectively reduce the accidents probability in the process of power construction,this paper applies the extension superiority method to the risk assessment of the power construction process.Firstly,the paper establishes the risk assessment index system for power construction process,which is based on research results.Then,the paper designs questionnaire according to the system and invites experts to grade the risk factors of 5 power construction projects affiliated to a company.Finally,the paper finds the risk assessment values of one of the power construction projects combined with the questionnaire score,and determines the comprehensive weight coefficients of each factors using analytic hierarchy process (AHP) and improved entropy weight method.The results show that the construction process of the power construction project is relatively safe.The risk assessment of power construction process can be quantified according to the evaluation method,which provides new ideas for risk assessment in construction process.