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对于围海造地排水工程,采用一级、二级结合的除涝排水模式,得到了广泛应用。厦门某新机场二级排水工程是典型填海造地全区域除涝排水工程。对二级排水工程排涝泵闸设计研究要点进行了总结探讨。数值模拟确定工程规模;无参考标准情况下,类比分析世界各地同类工程,确定了工程挡潮、除涝标准;统筹地形、地质、风浪等因素比选,确定了在空间区位、地形、地质和外海风浪等方面,均具有明显的优势的站点;泵闸总体布置防洪影响小,工程占地少,工程投资小,管理运行方便;泵站居中布置,站身(闸首)平面布置合理。科学制定运行管理方案,确保二级排水工程安全可靠运行。为围海造地除涝排水工程泵闸设计关键问题的解决提供了经验。
For reclamation of land reclamation projects, using a combination of primary and secondary drainage in addition to drainage patterns, has been widely used. Xiamen, a new airport two drainage project is a typical reclamation of the entire area waterlogging drainage project. This paper summarizes the key points of design of drainage dams for the secondary drainage works. Numerical simulation to determine the scale of the project; without reference standards, analogy analysis of similar projects around the world, to determine the project tide, waterlogging standards; co-ordinate the topography, geology, wind and waves and other factors compared to determine the space location, topography, geology and Offshore wind and waves, have obvious advantages of the site; the overall layout of the flood control floodgate little impact, the project occupies a small area, the project investment is small, convenient management and operation; pumping station layout, stand (gate head) layout is reasonable. Scientifically formulate operation management plan to ensure safe and reliable operation of secondary drainage works. It provides experience for solving the key problems of pump design in land reclamation and land reclamation.