南水北调丹江口大坝加高工程施工技术

丹江口大坝加高工程,是南水北调中线工程的关键性、控制性、标志性的龙头工程。该工程规模大、难点多,其采用的新老混凝土结合技术、大体积混凝土及薄层混凝土拆除技术、水下金结埋件检测与修复技术、高水头下的帷幕灌浆技术等施工技术措施,可为老化和病害水工混凝土建筑物的修复和改造提供可供借鉴的经验。

Construction Technology of Heightening Project of Danjiangkou Dam for the South-to-north Water Transfer Project

The heightening project of Danjiangkou Dam is a critical,control,symbolic and key project for the Mid-line Project of the South-to-north Water Transfer Project in China.It is a large scale and difficult project.The construction technologies such as the combination technology of new and old concrete,the demolishment of massive concrete and lamellar concrete,the detection and repair of embedding accessories of underwater metal structure,the curtain grouting under the condition of high head,etc adopted,in this project could provide reference experience for the restoration and transformation of the aging and dangerous hydraulic concrete structures.