旺村水利枢纽处于桂江与西江汇合口附近,受西江洪水位项托严重,施工过程洪水情况非常复杂,因此该工程采用了过水围堰的方案,减少了上游库区淹没几率,节约了工程投资。文章着重介绍了施工时段选择,过水围堰的设计与优化,特别是采用了基坑预充水等一系列简单易行的措施后,石渣保护的过水围堰体很牢固,供同类工程设计人员借鉴。 Wangcun Project is located near the junction of Guijiang River and Xijiang River. Due to the serious flood conditions of Xijiang River, the flood situation during the construction process is very complicated. Therefore, the project adopted the plan of over-water cofferdam to reduce the probability of inundation in the upstream reservoir area and save Project investment. The paper mainly introduces the selection of construction period, the design and optimization of over-flow cofferdam, especially after a series of simple and easy measures such as pre-filling of foundation pit and so on, Engineering design personnel to learn from.