１工程概况钱塘江北岸标准海塘工程是保护浙江省杭嘉湖平原地区的国家重点水利工程。本工程位于海宁４１＃和５０＃丁坝间，即海塘里程桩号６８＋１２１～７１＋６４０，共计主堤长２４９３ｍ，为钱塘江北岸海塘险段延伸段。其中鱼鳞塘顶高程约８．０ｍ（吴淞高程，下同）... 1 Project Overview Qiantang River north bank standard seawall project is to protect the Zhejiang Jiaxing-Huzhou plain national key water conservancy project. The project is located between Haining 41 # and No. 50 Dingba, that is, the seaway mileage is 68 + 121 ~ 71 + 640. The total length of the main embankment is 2493m, which is the extension of the dangerous section of the sea chestnut in the north bank of Qiantang River. One of the top of the fish pond elevation of about 8.0m (Wusong elevation, the same below) ...