EPC总承包模式下工程项目质量影响因素分析

Analysis of influencing factors of project quality under EPC general contracting mode

EPC总承包模式下的工程项目质量影响因素分析可以为工程项目质量管控提供决策支持,促进EPC项目的顺利交付.通过文献和案例分析以及专家访谈的形式,从设计阶段、采购阶段和施工阶段提取了14个影响因素;采用DEMATEL法分析了14个影响因素的重要程度并得到关键因素;进一步采用ISM法分析各要素的关联关系和影响路径,构建多层次递阶模型,将影响因素分为五个层级,并剖析了深层、中间层和浅层影响因素的作用机理;最后采用MICMAC法分析了各个因素的驱动力和依赖性,将影响因素划分为依赖型、驱动型、自治型和关联型.结果表明,施工方案的选择合理性、施工图纸设计的合理性、设计变更频繁和施工单位的综合实力等因素应当被重点关注.本研究对项目管理者具有一定的指导意义,有利于EPC项目的高质量发展.

The analysis of influencing factors of project quality under EPC mode can provide decision support for quality control of project and promote the smooth implementation of EPC project.Through literature,case studies and expert interviews,14 influencing factors were extracted from the design stage,procurement stage and construction stage.DEMATEL method was used to analyze the importance of 14 influencing factors and the key factors were obtained.ISM method was used to analyze the correlation and influence path of each factor,and a multi-level hierarchical model was built.The 14 influencing factors were divided into five levels,and the mechanism of deep,middle and shallow influencing factors was analyzed.Finally,MICMAC method was used to analyze the driving force and dependence of each factor,and the influencing factors were divided into dependent,independent,autonomous and linked types.The research results provided reference for project managers.The results showed that the rationality of construction scheme selection,the rationality of construction drawing design,frequent design changes and the comprehensive strength of construction units should be paid attention to.This study has certain guiding significance for project managers and is beneficial to the high-quality development of EPC projects.