Hydraulic dams refer to hydraulic concrete lifting dams, a relatively simple movable dam technology in hydraulic engineering. They are widely used in agricultural irrigation, fishing, lock gates, sea tide prevention, urban river landscape projects, and small hydropower stations.

Hydraulic dams, hydraulic landscape activity dams, hydraulic lifting dams, hinge activity dams, collectively known as movable dams, possess an unparalleled advantage in span over conventional water gates.

Hydraulic Steel DamFeatures

1. The dam face is constructed using reinforced concrete, with the width above the foundation only needing to match the height of the movable dam. Additionally, the hydraulic system is relatively complex, which keeps the cost of the dam face section lower. The total cost is only about one-tenth of an equivalent-sized air shielded water gate.

2. Applicable Range: The water-stop height is generally around 3 meters, and the width is not easily over 50 meters due to the pressure loss of the hydraulic pipeline. Suitable for riverbeds with generally flat, lightly silted, and small settlement geological conditions; largely unaffected by floating debris; dam release is relatively quick.

3. Durable and reliable structure with strong resistance to flood impacts. After the dam face is raised, it forms a stable pier-supported dam structure with a scientifically designed mechanical structure. No piers or any water-blocking objects are placed in the river. When the movable dam face is laid down, the dam body is only elevated 500 cm above the original dam crest. It offers effective floating debris removal.

4. Maintenance and management costs are lower than those of rubber dams.

5. Curved design of artificial waterfall dam body (reinforced concrete dam surface used for heights under 5 meters, no engineering practice for heights above 5 meters); forms a waterfall景观 when upstream water volume is significant.

Features of Hydraulic Steel Sluice Gate

1. The hydraulic steel dam gate features a large span, a simple structure, and ease of construction.

2. The hydraulic steel dam gate hydraulic system operates flexibly and can be controlled by manual on/off switches.

3. The hydraulic dam has superior conditions with low headwater. The dam can largely maintain the original riverbed, allowing for the free passage of floods, upstream sediment, cobblestones, and debris without impeding water flow. Compared to traditional sluice gates and similar rubber dams, it has a higher flow capacity and greater discharge volume. It is particularly suitable for rivers in sandy, rocky, wooded, bamboo-rich areas where rubber dams are not suitable for construction. It can adjust the dam height for overflow, controlling upstream water levels and discharge volumes.

4. Hydraulic lifting dams are easy to construct, with a short construction period. Compared to traditional water gates, they reduce piers, a large amount of embedded metal structures, and gate opening and closing equipment. However, the concrete engineering is complex, initially saving on equipment investment but resulting in higher maintenance costs later on.

5. Hydraulic dams are low-head water-retaining structures, widely used in irrigation, urban beautification, and can create expansive water surfaces.