圆沙泵闸位于上海市长兴岛东端,紧邻横沙通道,其主要功能是排涝,本文介绍了圆沙泵闸在工程布置和结构设计上的主要特点。在工程平面布置上,圆沙泵闸采用与大堤成70°角的斜交布置方式,使得泵闸的进、出水水流更加顺畅,以减少对横沙通道的影响。在泵闸主体结构设计上,充分考虑上海软土地基的特点,采用整体式底板和复合地基的处理方式,有效避免泵闸的不均匀沉降。在水泵的选型上,以安全可靠为前提,优先选用干式电机。 Located at the east end of Changxing Island in Shanghai, close to the Hengsha Pass, the main function of the round sand pump gate is drainage. This paper introduces the main features of the round sand pump gate in engineering layout and structural design. In the layout of the project, the round sand pump gate adopted a skewed arrangement at an angle of 70 ° with the embankment to make the pump inlet and outlet water flow more smoothly to reduce the impact on the Hengsha channel. In the structural design of the pump main body, taking full account of the characteristics of the Shanghai soft soil foundation, the integrated floor and composite foundation are adopted to effectively avoid the uneven settlement of the pump brake. Selection of the pump, safe and reliable as a precondition, the preferred dry-type motor.