在长委会设计的基础上，作者从围堰设计的灵活性出发，对三峡二期上游围堰的顺利实施做了初步研究，主要包括改进防渗结构型式、灵活控制堰体填筑、方便后期拆除等三项。研究结果认为，上述三项措施对缩短工期比较有利。 Based on the design of the committee, the author, based on the design flexibility of the cofferdam, conducted a preliminary study on the smooth implementation of the cofferdam of the second phase of the Three Gorges Project, including improving the type of seepage control structure and flexibly controlling the filling of the weir body, After the demolition of three. The findings suggest that the above three measures are beneficial to shorten the construction period.