Stacked-beam gates utilise multiple individual gate panels, which are sequentially inserted transversely into the gate slot to form a complete planar water-retaining structure. The structure of a stacked beam gate is simple, featuring light self-weight, low lifting force requirements, and ease of handling. However, as watertightness between gate panels relies solely on their own weight for sealing, the overall integrity of the water-retaining structure is poor. Sealing performance at water level is inadequate, resulting in a slightly higher leakage rate than steel gates. Consequently, stacked beam gates are suitable for use as temporary water barriers or maintenance gates.