Stage Of Project Construction Cost Risk Analysis And Countermeasures Research

Construction project is a systems engineering with dynamic character, there is cat-and-dag because of many nondeterminacies from multi interference factors in the environment of projects. Comparing with developed countries, there is less risk awareness about risk management of construction projects, also entire risk management expertise is far from the level in these countries. In such as case, this paper is focused on the study of the risk of various cost at the construction stage from the viewpoint of contractor, which touches both of the theory and practice under the basis of summarizing and analyzing the findings in this research area by the experts in China and outside China.First of all, this paper limited the definition of cost risk at the phase of construction and risk management. Then it placed emphasis on meticulous and completely identification of cost risk at the phase of construction through Systematic Analysis, project materials' study, investigation by expertise and Survey at the spot during the construction, which is established at the basis of Contrastive analysis also considering the actual situation of construction projects.Secondly,based on the finding of cost risk identification, this paper is featured with the model of structural importance's ordering and solution to cost risks under the method Of AHP. Its purpose is for the conclusion of main risks from cost factors through risk prophecy and valuation of cost risk at the phase of construction ,which is realized by questionnaires survey and mathematical statistics.Then, monographer has put forward a narrow sense proposal of risk aversion at the basis of risk prophecy and valuation of cost risk, also the solution for cost risk through ABC analysis based on the finding of risk prophecy and valuation of cost risk.and then to propose the risk handling solution and the strategic data-planning methodology.Finally, build up the importance-assessing model of cost risks at the construction stage, which is for the purpose of cost risks identification and valuating for inspection and verification to the valid of this model. It is through the fuzzy decision trees analysis in according to the study of idiographic actual cases.