Abstract: This paper analyzes the technical difficulties in underwater installation of steel pipes in the water intake project of Jinshuitan water-cooling green data center. To avoid significant impact from reservoir water level change on engineering during pipe sinking, and to ensure stability of underwater bank slope during the operation of water intake steel pipes, the immersed tube construction technology for complex conditions is proposed. Furthermore, the technology is successfully applied, worth promoting under similar conditions.

Key words: immersed tube, water intake engineering, steel pipe installation, underwater operation

摘要： 分析了紧水滩水冷式绿色数据中心取水工程中取水钢管水下安装的施工技术难点。为解决水下沉管过程中库水位调降对工程影响较大的难题，并且保证取水钢管运行期间在水下岸坡的稳固性，提出一种复杂工况下的水下沉管施工技术。该技术的成功应用，值得在类似条件下取水工程水下钢管安装中推广。

关键词: 水下沉管, 取水工程, 钢管安装, 水下作业