In the course of main dam construction of Jinwo reservoir expansion project,the original upstream cement-rubble masonry gravity wall was utilized as temporary water retaining construction cofferdam.

• 金窝水库加高扩容工程在主坝施工过程中利用原上游浆砌石重力墙作为施工临时挡水围堰,根据库水位合理安排施工进度,控制重力墙基底应力,解决主坝施工、围堰安全、水库蓄水三者间的矛盾。