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Panel Assembly
Material: Reinforced concrete or steel plates (adapted to different water heads and environmental requirements). Steel plates can be made of carbon steel Q235 or stainless steel 304, requiring anti-corrosion treatment (referring to the coating or passivation process of steel sluice gates).
Shape: Designed as arc-shaped, flat-plate, or special-shaped based on hydraulic conditions. Arc-shaped panels optimize flow patterns and reduce flood impact loads.
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Connection Method: Infinite-width assembly without gate piers between panels; panels are connected via sealing components, adapting to various river widths.
Bottom Shaft System
Function: Serves as the pivot for panel rotation, allowing the dam face to flip within a set angle to realize dam lifting for water retention and dam lowering for flood discharge.
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Characteristics: Made of high-strength alloy steel, connected to the dam foundation via a hinged joint. A sediment channel is reserved at the bottom to prevent sediment accumulation from affecting opening and closing.
Hydraulic Actuator Components
Hydraulic Cylinder: Plunger cylinders, double-acting cylinders, or multi-stage cylinders are selected based on drive requirements. One end is hinged to the back of the dam body, and the other end is fixed to the dam foundation to directly drive the lifting and lowering of the dam face.
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Hydraulic Pump Station: Provides the power source, including oil pumps, oil tanks, valve groups, etc. (similar to the hydraulic hoisting system of steel sluice gates). It connects to hydraulic cylinders via pipelines to control oil pressure and flow.
Auxiliary Transmission Components
Piston Rod: Chrome plating process is used to enhance wear resistance, equipped with sealing components (nitrile rubber material) to prevent hydraulic oil leakage.
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Pipeline System: High-pressure hydraulic oil pipes connect the pump station to hydraulic cylinders. Antifreeze fluid must be added in low-temperature winter environments (referring to the antifreeze measures for the hydraulic system of steel sluice gates).
Fixed Support Rods
Function: After the dam face is lifted, one end of the support rod is connected to the back of the dam body, and the other end is anchored to the dam foundation, forming a double triangular statically indeterminate structure to improve impact resistance.
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Characteristics: Foldable design; when the dam is lowered, it is stored on the back of the dam body without affecting flow passage.
Dam Foundation Bearing Structure
Form: Rigid foundation made of reinforced concrete casting, embedded in riverbed rock formations or compacted soil layers, with strong adaptability to geology.
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Force-Bearing Characteristics: The triangular support system distributes the dam body load to the foundation, with a bearing capacity of more than 1.2 times the design head.
Water Sealing Structure
Positions: Gaps between panels, the junction of the dam body and the bottom shaft, and the contact area between the dam body and the bank wall.
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Technological Innovation: Composite rubber water stop strips (similar to the EPDM water stop strips of steel sluice gates) are used, combined with pressing devices to achieve efficient sealing. The seepage rate can be controlled below 0.05 L/(s·m).
Auxiliary Sealing Components
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Water-swellable rubber is used at panel joints to adapt to minor deformations of the dam body. Adjustable water stop pressure plates are installed on the bank wall side to compensate for installation errors.
Monitoring and Sensing Components
Angle Sensor: Real-time monitors the flipping angle of the dam face and feeds back to the control system to adjust the lifting position.
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Float Switch: Detects water level changes and triggers the automatic opening and closing of the hydraulic system to realize unattended operation.
Control Terminal
Local Control: Equipped with buttons, indicator lights, and a PLC controller (referring to the automatic control system of steel sluice gates), allowing manual adjustment of the dam height.
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Remote Control: Accesses the basin management and control platform via a communication module to realize multi-dam linkage and remote monitoring, with a command response time of ≤ 3 seconds.
Stability Advantage of Triangular Support
Optimized Design of Flow Pattern
Modular Design
Easy Maintenance Characteristics
Structural Unit |
Core Advantage |
Connection with Steel Sluice Structure |
Panel & Bottom Shaft |
Flip design, strong flow passage capacity |
Common anti-corrosion technology for materials |
Hydraulic Drive System |
Direct drive, fast response |
Reference for pump station maintenance and antifreeze measures |
Triangular Support System |
Mechanically stable, strong impact resistance |
Similar force optimization logic to sluice gate beams |
Sealing System |
Modular sealing, low seepage rate |
Consistent material and pressing principle for water stop strips |
Intelligent Control System |
Automatic regulation, adapted to flood rise and fall |
Reusable sensor and PLC control technology |
4. Scene Adaptability of Structural DesignSediment-Laden Rivers: A sediment discharge channel is reserved in the bottom shaft. After the panel is lowered, it fits closely to the riverbed to prevent sediment accumulation from affecting opening and closing.
Cold Regions: Steel panels use low-temperature tough steel; antifreeze fluid is added to the hydraulic system; the triangular structure can resist ice pressure.
Urban Rivers: Arc-shaped panels are combined with color coating to form a waterfall landscape when the dam is lifted. When the dam is lowered, it does not affect navigation and flood control.
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