工程网络计划工序“关键性”问题研究  

Study on activity criticality in the project network planning

作　　者：姬忠凯[1] 杨卫璇 王仁超[1] 田钰[1] 

机构地区：[1]天津大学水利工程仿真与安全国家重点实验室,天津300072 [2]河海大学港口海岸与近海工程学院,南京210021

出　　处：《水力发电学报》2015年第5期172-180,共9页Journal of Hydroelectric Engineering

摘　　要：不同工序对项目总工期的影响不同。基于这一事实,在项目管理中的重要问题之一是,确定项目的重要工序和合理分配精力控制工序以使项目顺利完工。为此,对几个经典关键指标,如工序关键概率(ACP)、工序关键度(ACI)和显著性系数(SI)进行了比较研究;并在其存在问题分析的基础上提出了一个新的衡量工序关键性的指标,即工序重要度(VES)。此外,基于项目风险管理中控制措施能减少工序持续时间,提出了运用工序关键指标辅助项目管理者合理分配精力;用C#语言编制软件C#-NETSIMU,并将其运用于工程实例分析。此研究成果有助于项目管理者合理地进行项目控制。Effects of different activities on the expected completion time of a project are not the same. Based on this fact, one of the most important issues in project management is to determine important activities and the amount of effort that should be assigned to control them, thereby completing the project successfully. In this regard, several classical criticality indexes, including activity criticality probability （ACP）, activity cruciality index （AC/）, and significance index（S/）, are thoroughly compared and analyzed herein. Due to the shortcomings of all these indexes, a new one, namely activity importance index （VES）, is adopted to measure the importance of project activities. Moreover, based on the fact that expending effort on activities and controlling them actively can result in a shorter mean duration of the project, this paper puts forward a thought that the project managers allocate their own energy according to the critical index of each activity. Finally, we develop a network planning software, C#-NETSIMU, using Visual C# and apply it to analysis of a case project. This study would help project managers for reasonable project control.

关 键 词：工程管理 网络计划 关键指标 风险管理 项目控制 

分 类 号：TV512[水利工程—水利水电工程]