我国自1981年首次结合龚咀、沙溪口水电工程采用碾压混凝土筑坝技术以来，已走过了15年历程，1986年建成的具有中国特色的坑口碾压混凝土坝也已经历了10年考验．值此之际，拟于1996年在福建省召开庆祝和交流大会．为了做好技术交流工作，特向全国征集论文．建议证文题目如下（ Since China first adopted the technology of rolling compacted concrete for the construction of the Gongzui and Shaxikou hydropower projects in 1981, it has gone through a 15-year history. The cratered RCC dam with Chinese characteristics built in 1986 has also gone through 10 years. test. On this occasion, it is planned to hold a celebration and exchange conference in Fujian Province in 1996. In order to do a good job of technical exchanges, special collection of papers for the country. The title of the proposed certificate is as follows (