大型水利工程项目技术复杂,工程艰巨,工期长,投资大,牵涉面广,存在许多不确定因素,有可能使项目建设或实施发生偏差,这就是风险因素。方案建设和实施时,如果不能认识並解决这些问题,往往会使工程受到不同程度的影响,甚至无法进行。风险分析就是为了避免或减少损失,找出工程方案中的风险因素,对它们的性质、影响和后果作出分析,对 Large-scale water conservancy projects have complicated technologies, arduous projects, long construction schedules, large investment, and extensive involvement. There are many uncertainties and there may be deviations in project construction or implementation. This is a risk factor. In the construction and implementation of the plan, if you do not understand and solve these problems, the project will often be affected to varying degrees, or even impossible. Risk analysis is to avoid or reduce losses, identify risk factors in the engineering program, and analyze their nature, impact and consequences.