大藤峡水利枢纽建设和运行期若干重难点问题及解决对策OA

The Datengxia Gorge Water Conservancy is a flood control project in the the Pearl River basin.In view of the difficulty of cofferdam demolition in the construction of the Datengxia Gorge Water Conservancy,a"Z"shaped underwater demolition scheme of cofferdam is proposed.In order to solve the problems such as complicated sluice dispatching mode,changes of navigable flow condition in the downstream channel connection section of the sluice,and drift in the front of the dam,the principle of sluice zoning first opening is optimized.Some solutions such as filling in permeable dikes to improve the flow condition of the downstream channel connection section of the lock and building automatic drainage and bleaching devices are put forward.The relevant research results can provide reference for solving the common problems in the construction and operation period of the Datengxia Gorge Water Conservancy and other water conservancy projects.