本申请涉及一种大跨度挡潮工作闸门，属于闸门技术领域。大跨度挡潮工作闸门包括闸门本体、转动驱动装置、泥沙压力感应装置、第一淤积泥沙清理装置、第二淤积泥沙清理装置及控制器。闸门本体包括分体设置的下部门体和上部门体，下部门体用于设置于河底，下部门体的长度方向的两端用于与河口两侧闸墩转动配合，下部门体与河底转动配合，上部门体被配置为设置于下部门体的上方，上部门体与下部门体滑动且密封配合，上部门体能够相对于下部门体沿河口的宽度方向移动。该大跨度挡潮工作闸门，用于强涌潮河口船闸，安全、稳定，并且维护保养费用较低。

The invention relates to a large-span tide-blocking service gate, and belongs to the technical field of gates. The large-span tide-blocking service gate comprises a gate body, a rotation driving device, a sediment pressure sensing device, a first deposited sediment cleaning device, a second deposited sediment cleaning device and a controller, wherein the gate body comprises a lower gate body and an upper gate body which are arranged in a split mode, the lower gate body is used for being arranged at the river bottom, the two ends of the lower gate body in the length direction are used for being rotationally matched with gate piers on the two sides of a river mouth, the lower gate body is rotationally matched with the river bottom, the upper gate body is arranged above the lower gate body, the upper door body and the lower door body are in sliding and sealing fit, and the upper door body can move in the width direction of the river mouth relative to the lower door body. The large-span tide-blocking service gate is used for a strong tidal bore river mouth ship lock, and is safe, stable and low in maintenance cost.