| In recent years,China has invested heavily in infrastructure projects,most of which are public welfare projects.The construction period is long,the construction is complex and the management is difficult.However,project managers often first focus on quality and construction period,and come to cost management mostly at the end of the project.The management links and methods are single,which leads to problems such as project schedule lag and cost overruns.Therefore,it is particularly important to strengthen the cost management of construction projects,ensure that the projects are carried out on schedule,effectively control the costs and realize the economic and social benefits of the projects.In this paper,the method of combining theoretical research with case analysis is adopted.Firstly,the related theories and literature research of project cost management at home and abroad are summarized as the research basis of this paper.Then,taking A highway project as the specific research object,through collecting and sorting out the relevant data of the project,the paper makes quantitative and qualitative analysis,and finds that there are deficiencies in the cost management of each stage of the project.For example,insufficient cost planning in advance,ineffective cost control in the process,and poor cost management at the end of the project,etc.,eventually lead to the lag of project duration and serious cost overruns.Through expounding and analyzing the cost management status of A highway project,we can get enlightenment from it.From individual cases to the current cost management activities of similar infrastructure projects,combined with the theories of target cost management,whole process cost management and dynamic control,we put forward measures to improve the cost management of infrastructure projects: optimizing cost estimation and design in advance,and establishing target cost control model;Strengthen the dynamic supervision of construction costs,and use earned value method to coordinate costs and progress,and strengthen the financial management function of capital construction;Standardize the final accounts management after the project,and implement the project cost assessment and evaluation mechanism;At the same time,measures such as strengthening project information management and training professional infrastructure management team provide a strong guarantee for improving project cost management.Do a good job in-advance cost planning,in-process cost control and post-cost evaluation,so as to realize the whole process and all-round dynamic control of project cost,maximize the economic and social benefits of the project,and provide reference for future related research and practice. |