In this article,an analytic model has been given and the arch dam of Dongjiang River in Hunan Province is used to analyze the process of stage construction and impounding.

• 给出一种分析模型，以湖南东江拱坝为例，进行了实际分期施工及蓄水过程的结构分析，论述了它的可能性，指出了存在的问题，并对分期的技巧提出了参考建