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针对目前缺少对多个项目并行施工的安全事故因素相关性研究,以致于当施工项目发生重大安全事故后就对大范围内项目停工整改的问题,提出了多个项目并行施工的安全事故因素相关性指标体系,建立基于信息熵与D-S证据理论的相关性评价模型。以铜川市某小区建设项目为背景,对小区建设过程中多个项目并行施工的安全事故相关性进行分析。在采用德尔菲法跟模糊分析法基础上,使用信息熵确定指标的权重,并引入D-S证据算法,从而得出多个项目并行施工的安全事故相关性等级。计算结果表明,模型可以准确地计算出多个项目并行施工的安全事故相关性等级,能更好地满足多项目管理的需求,从而降低不必要的人力、财力的浪费。
Aiming at the lack of correlation research on safety accident factors of concurrent construction of multiple projects, the safety accident factors of multiple projects in parallel construction are put forward when the major project safety accidents happen. Sexual index system, establishing a correlation evaluation model based on information entropy and DS evidence theory. Taking the construction of a residential area in Tongchuan City as the background, the correlation between safety accidents in parallel construction of multiple projects in the residential area was analyzed. Based on the Delphi method and the fuzzy analysis method, the information entropy is used to determine the weight of the index and the D-S evidence algorithm is introduced to obtain the safety accident correlation level of multiple projects in parallel construction. The calculation results show that the model can accurately calculate the safety accident correlation level of multiple projects in parallel construction and can better meet the needs of multi-project management, so as to reduce unnecessary waste of human and financial resources.