Research On Integrated Management Of Five Elements Of Engineering Project Objectives Based On System Dynamics

Based on the theory of system dynamics,this paper constructs the overall model of the construction project target management system and the five sub-models of progress,quality,cost,safety and environmental protection management,and makes an empirical study on the main influencing factors and the relationship model of the construction project target The validity of the model is verified.The quality,schedule and cost of safety,environmental protection and environmental protection are the opposite and unified,and the relationship between them and the construction of project objectives is very important.The overall model of the system dynamics is constructed,and the overall model is divided into the planning,quality,cost,schedule,safety and environmental protection management module.The main factors affecting the subsystems are defined,and the relationship equations between the sub-model factors are determined.Five sub-models of progress,quality,cost,safety and environmental management are established.The construction model will be applied to a city construction project,comparative analysis of model results and the actual situation of the project.The results of the experiment show that the project plan will seriously affect the project progress,cost and quality,and the planning and rework problem must be adjusted and revised in real time according to the actual situation of the project team and fund to greatly improve the effectiveness of the project.And the rationality of the distribution of different staff directly affect the progress of the project and the completion of the workload,select the appropriate proportion of staff distribution is conducive to project materials and human resources savings,control project investment to ensure project progress and quality;staff pressure and The increase in workload has led to further intensification,until the number of new staff and other measures to implement in place,only to change the situation to ensure that the project progress.Based on the system dynamics,the objective process management system model of the construction project is analyzed,and the causal relationship between the structure and the variables of the system is analyzed,which better reflects the relationship between the elements within the target system of the construction project and makes the construction project target management more specific And the scientific and effective,to avoid the subjective assumptions,and reduce the experimental cost and operational difficulty,to meet the construction project objectives management dynamic system requirements for the project manager to develop management strategies to provide the basis.