| With the 2008 financial crisis, the Chinese government want to anti-crisis and keep capital growth, launched a plan to invest 4 trillion, of which 3 trillion in direct investment in infrastructure projects. With the introduction of the national investment plan, local governments have launched their massive investment plans. Earlier last year,1300 key projects in Hebei Province will be launched in 2010, a total investment of 1.6 trillion yuan; Ningbo City, Zhejiang Province, crucial battle to finalize the project in 2010 to 100, with a total investment of 0.28 trillion yuan; Hubei in the March 22 launch a investment plans of the next 6 to 8 years, total investment of 12 trillion yuan; Chongqing followed also introduced a 1 trillion yuan of investment plans, investment plans in the provinces of investment in infrastructure accounted for a total investment of the vast section. Reports and data from the above get a message the next few years the construction industry in China will be in a period of rapid growth. This is for the domestic construction enterprises, will be a very favorable signal that companies are facing the construction market will continue to grow the industry rather than shrinking, which is the development of construction enterprises is very beneficial. Central and local government investment in large-scale infrastructure development is bound to promote the construction industry, construction industry will also increase competition in the market are in competition for the construction enterprises in China will be both opportunities and challenges, to strengthen the creating profit center (Project) is extremely important to construction enterprises cost control.However, project cost management in our country is still at a preliminary stage, far from scientific management requirements. Many scholars are from the project cost management and control point for research, and awareness of the cost of the project is not enough. The business people are only concerned about how to reduce the project cost, but few companies the cost of completed projects were analyzed and summarized. In the absence of the project cost of careful analysis and research, it is difficult from the project cost and project cost management identify problems, objectives of the project is not conducive to the development of responsibility cost, making the project a serious waste management, direct affect the economic efficiency of enterprises. At the same time, this defect also obscures the inherent business advantages of project cost managements, project management weakens the driving force of economic development, affecting the project cost management of healthy and stable development.Moreover, many of the current literature is mainly based on the concept of project cost management and content and features, described the composition of project costs, or to introduce the application of a cost management in project cost management, but what is the project cost, including what content, and number of project cost regularity of the inner few. To learn more about the project cost, we must first clear the project cost structure, and secondly to analyze the internal laws of the project cost, including the relationship between the cost of detail, and the Formation of the cost of quantitative research.This pragmatic thinking, direct project cost for construction enterprise management, analysis of project cost from the start, and further study the formation mechanism of the project cost, project cost analysis of the composition, the details of the cost of the proportion of total costs to help construction companies clear the focus of the project cost control and responsibility for the cost of the construction business goals to provide a reasonable standard of development; on the details of the cost of a comparative analysis of the relationship between project cost and the factors affecting the return to form analysis, can guide the direction of the project cost control, making the project cost control is more targeted. I hope that through this project research, to further improve project cost management methods and basis for, encourage enterprises to increase the cost of analysis and summary of project awareness of the importance to improve the economic efficiency of enterprises, with important economic and practical significance.Full-text is divided into a total of five chapters, the main structure and framework as follows: Chapter I:Introduction. Describes the current construction enterprises are facing opportunities and challenges,and highlighted projects is the source of construction corporate profits, we proposed enterprises to strengthen the analysis of the project. Briefly discusses the status of data mining and the idea of this study.Chapter II:the theory of project cost. This chapter first explains what the project, what is the cost, and interpretation of the concept of project cost; followed by some project cost managements; then explains the classification and composition of project cost; finally, the project cost factors were analyzed.Chapter III:The generally law analysis of project costs. The ideas of data mining was described in This chapter, and then describe the data sources and how dose the data was filtered, the data do not meet the requirements to be deleted. The main comparative analysis of various projects including tax gross profit margin, the proportion of the total cost structure, the ratio of overhead and other direct costs constitute.Chapter IV:Analysis of Project Cost Factors. This chapter details relationship between the costs and the five cost factors, this chapter iterative regression method, and through parametric test which types of factors influence the cost of the most significant, detailed comparative analysis of the difference between the cost factors and the overall regression results.Chapter V:Conclusions and recommendations. According to the general rules of project cost analysis and found that different types of project have different profit and proportion of cost, according to research results related to specific recommendations made. Factors under the project cost analysis and found that the details of various factors on the cost differences in the degree of influence is, therefore, recommends that companies adopt different for different cost control measures. Finally, there are also limitations and deficiencies to this study, and pointed out the future research directions.By using data mining technology on project cost analysis, we found:the materials cost of the project cost is more than 50% of the total cost, while labor costs, materials and machinery to achieve the total cost of 85% or more, it can be said labor costs, material costs, machine costs are the focus of the project cost control, should strengthen the management to control these three. Labor costs and machine costs for the presentation of a complementary relationship, and therefore should be synchronization between the two, and not split open.This article also investigated using multiple regression analysis of factors influence the project cost, the following conclusions:project size has the most significant impact of the project cost, followed by the project duration and distance. Price level is only significant impact on part of the indirect costs, we should make the formation of these costs do not rise with the price increases. Construction sites have negative effects on the mechanical charge. Overall, machinery costs and other direct costs have factors more than that of materials and labor costs, relatively speaking, they are the difficulty of the engineering projects. Therefore, the proposed project construction enterprises should be targeted to the implementation of various cost control, not blindly indiscriminate action or treatment.In short, through this research, has clearly found that the project will focus on cost control of labor costs, materials and machinery costs, particularly material costs; also found three different types of projects have different proportion of the total cost. Regression analysis also found that machinery fees and other direct expenses is difficult to project cost control, many factors, enterprises should strengthen the supervision of both.The contribution of this in the following areas:First of all, cost management research is the regulate study, some case studies related to cost management methods described in the application of engineering projects, as concerns the immediate interests of enterprises, businesses can not take too much risk to accept management practices, and whether these methods adapt to in project cost management, so most cases are introduced in a state, rather than the real field study. And this research is received the strong support of the enterprises to be able to get a lot of project cost data and carry out further research in the construction business, eventually this study can proceed smoothly.Secondly, a large-scale railway construction company's business increasingly diverse, comprehensive, pure railway construction accounts'for the enterprise business volume decreased from 60% - 70% to 20%- 30%, non-public facilities, residential, etc. Based on this, this paper also examines the formation of different types of project cost, the idea is to tap the perspectives and case studies can not be achieved through individual projects, and this is one of the contributions of this study.Finally, the project cost through to quantitative factors, and factors have been quantified and the total cost of the project cost and the details of the regression analysis, which in previous studies is rare. Cost for the project before the influencing factors are the specifications of most of most of the article only describes a variety of factors could have an impact on project cost, yet it is not specific to the details of the cost is based on personal experience, the data has not been verified.Limitations and shortcomings of this study:Due to data limitations, this project involved the cost factors is limited, in reality the factors that affect the project cost are more than we had studied, and duration of this study is an integrated variable, which itself is affected by many factors, such as the scale of construction, the project manager's ability, the size of the project organization, as well as weather conditions and construction accidents will delays the schedule, future research could be more in-depth analysis of these factors on the impact of the project cost. |
PDF Full Text Request