With the urban use of water, landscape construction, environmental sanitation, and irrigation, structures such as floodgates, flip buckets, sluice gates, and rubber dams are widely utilized. However, the production of these structures, particularly rubber dams, is highly complex. The time required to fill (inflate) or deflate rubber dams is lengthy, which can disrupt rapid cutoff or flood release. Additionally, the vulnerability to aging of rubber materials can significantly impact quality levels. Currently, the market has produced a large number of steel structure gates, including flip buckets, which are either vertical or horizontal, but single-chamber gates are not suitable for wide rivers. Steel坝闸 is a new type of adjustable air-controlled overflow gate, consisting of a civil structure, a steel gate body with a stable shaft, and operating equipment. (Domestic large-span bottom-axis-driven flip bucket gates) Application shows that these structures are suitable for wide gate openings (10 to 100 meters) with very small water level differences (1 to 7 meters) in hydraulic and water conservancy construction, leading to the following conclusions.

Rubber dams can be categorized into water-filled and air-filled types. Water-filled rubber dams are more stable and evenly overflowed at the dam crest, with less impact on downstream and upstream riverbanks. Due to the high expansibility of gases, air-filled rubber dams exhibit indentation at the dam crest, causing concentrated water flow and stronger washing effects on riverbanks. In regions with freezing temperatures, the air-filled material does not face freezing issues, whereas the water-filled type does not possess this advantage. Air-filled rubber dams require higher sealing performance, while water-filled dams have relatively lower requirements in this aspect. The project investment for air-filled rubber dams is lower than that for water-filled ones. When selecting a plan, consider the operational requirements and standards, and weigh the advantages and disadvantages to choose an appropriate dam type.