Hydraulic dams refer to hydraulic concrete lifting dams, a relatively simple mobile dam technology in hydraulic engineering. They are widely used in agricultural irrigation, fishing, lock gates, coastal flood prevention, urban river景观 engineering, and small hydropower stations.

Hydraulic dams, hydraulic landscape moving dams, hydraulic lifting dams, hinge-actuated dams, all collectively referred to as movable dams, possess an unparalleled advantage of large span that conventional sluices cannot match.

Hydraulic steel sluice gateFeatures

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, resulting in a lower cost for the dam face section. The total cost is only about one-tenth of that for an air shielded water gate of the same specifications.

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

3. The structure is robust and reliable, with strong resistance to flood impacts. After the dam surface is elevated, it forms a stable pier dam structure with a scientifically designed mechanical structure. No piers or any water-blocking objects are placed in the river. When the movable dam surface is laid down, the dam body is only 500 cm higher than the original dam top. It effectively discharges floating debris.

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

5. Curved dam design for artificial waterfalls (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 substantial.

Features of hydraulic steel sluice gates

1. The hydraulic steel坝gate has a large span, a simple structure, and is easy to construct.

2. The hydraulic steel坝gate hydraulic system operates flexibly and can be controlled by manual switches.

3. The hydraulic conditions of the hydraulic dam are superior at low water heads. The dam can largely maintain the original riverbed, allowing for the free flow of floodwater, upstream sediment, cobblestones, and debris without impeding water flow. Compared to traditional sluice gates and similar rubber dams, it has a greater capacity for water flow and discharge. It is particularly suitable for rivers in sandy, stony, forested, bamboo-rich, and other areas where rubber dams are not suitable for construction. It can regulate the dam height for overflow, control 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 number of embedded metal structures, and gate opening and closing equipment. However, the concrete engineering is complex, with initial investment savings on equipment funds but higher maintenance costs in the long run.

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