大藤峡水利枢纽工程二期围堰拆除方案设计OA

The demolition of the cofferdam of the second phase of the Datengxia Water Conservancy Project needs to be carried out under deep water,and the maximum water depth of the demolition is 19.60m,so it is difficult to remove the cofferdam.Based on the model test results,this paper proposes a reasonable demolition design scheme for the second phase cofferdam.Under the premise of satisfying the discharge capacity and power generation,combined with the water retaining conditions,the demolition construction is carried out in different areas to minimize the amount of underwater demolition and speed up the construction progress,which provides a good reference for similar projects.