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一、概况慈溪县位于杭州湾南岸,海岸线长77.6公里,全县大部分为浅海沉积平原,土质为粉砂土、粉土、粉质粘土,全县有三分之二以上的内涝向北排入杭州湾,故在河渠的入海口,相应建设了较多的排涝闸。六十年代在我县水闸设计中,闸底板均设计成钢筋混凝土平底板,地基作换土处理。自1975年郑家浦九塘闸的设计中,在学习有关资料的基础上,结合我县小型水闸的具体情况,
First, an overview Cixi County is located in the south bank of Hangzhou Bay, the coastline of 77.6 kilometers long, most of the county for the shallow sea sedimentary plain, soil is silty soil, silt, silty clay, the county has more than two thirds of the waterlogging north row Into the Hangzhou Bay, so in the canal into the sea, the corresponding construction of more drainage gates. In the 1960s, in the design of the sluice in our county, the sluice floor was designed as a reinforced concrete flat floor, and the foundation was changed for soil disposal. Since 1975, the design of the JiuTangZha of ZhengJiapu, on the basis of studying relevant information and combining with the specific conditions of the small sluice in our county,