Abstract：Research purposes: There are a lot of uncertain factors in construction, but many construction enterprises ignore risk management and suffer huge olss in business, even are bankrupt owing to underestimation of risk and an error of judgement. The purposes are to make a research on how to effectively strengthen the risk management of construction.
Research methods: From the angle of project manager, the research is made on risk management of construction, the introduction is given to the risk meaning of construction and procedure of risk management, and the analysis is made for application of circle work method and work procedure of PDCA management in the cause of risk management, mainly analysis of how to work out risk plan in four aspects of risk identification, risk analysis, risk estimation and risk treatment, and how to implement the plan in cause of construction. The scientificness, rationality and operational ability of application of PDCA management circle in construction for risk management are also demonstrated in this paper.
Research conclusions: It is believed the effective PDCA management should be applied in cause of implement of risk management and the four links of making plan, implement, inspection feedback and management appraisal should be well done. In this way, the risk of construction can be avoided, economic benefit can be increased and ability of treating risk can be improved.
2006, Vol. 23 
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