Air shield dam is a new type of water conservancy building that combines the advantages of rubber dam and steel plate dam. This product absorbs the advantages of traditional activity dams and discards the shortcomings of traditional activity dams. It has a simple structure and a short construction and installation cycle. So what are the advantages of gas shield dams?

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1. The pneumatic shield gate system overcomes the weakness of poor ecological and environmental protection functions of steel gates, rubber dams, and hydraulic self-control flap gates. The air bag of the gas shield dam system is made of food grade materials, driven by compressed clean air, without any mechanical oil, and will not cause water and environmental pollution. It has good environmental protection functions. The pneumatic shield shaped gate system facilitates the installation of fish channels, completely collapsing at the bottom of the river without any water level difference, and does not affect the up and down passage of aquatic organisms. It can maintain the ecological continuity of the river and effectively protect the ecological environment.

2. The pneumatic shield gate system has a wide range of applications and can be applied to gate and dam projects of various river widths, such as river renovation projects, hydropower projects, water diversion projects, agricultural irrigation projects, drought and drainage projects, coastal defense construction projects, dam elevation projects, wetland and groundwater cultivation projects, etc. When the gate overflows, it can also create an artificial scene that integrates with the surrounding environment, protecting the ecology and beautifying the environment, and can be used for urban landscape engineering. Especially suitable for gate and dam projects with large spans, low water heads, innovative planning requirements, and compact placement.

3. The shield shaped steel gate structure supported by the airbag can safely protect the airbag itself and prevent damage from floating wood, mud, ice, and other debris. The theoretical service life of the pneumatic shield shaped gate system can reach more than 30 years.

4. High safety function. The shield shaped gate can completely collapse at the bottom of the riverbed without affecting the flood discharge of the river. It can use both manual and active methods to control the water level, especially for power outages caused by flooding. It can still use manual control to urgently discharge air from the air bag to achieve safe flood discharge. After the flood discharge, even if sludge and other debris accumulate on the gate, it still does not affect its normal operation.

Pneumatic Shield Type River Dam | Innovative Water Control Solution

Introduction to Pneumatic Shield Type River Dam

Shield type dam, also named pneumatic shield type rubber dam, pneumatic spillway gate, shield type steel river dam, is a new kind of water dam integrating the advantages of traditional steel dam and rubber dam. It consists of civil works, embedded components, shield plates, air bladders, pneumatic charging and discharging system. Steel shield plates provide front stop water; rubber air bladders provide support for shield plate; a row of basic anchor bolt and soft connection construct the whole structure of dam; a set of pneumatic charging and discharging system provides operating power to achieve rise dam and lower dam. Shield plates and air bladders are connected with the base by anchor bolts and high strength rubber compound belts. If the gate is fully open, shield plates all lying on the riverbed, not affect navigation. If the gate is fully closed, overflow can form various artificially designed overflow landscape. It is easy to install and repair, has short construction time and long service life. It is widely applied to many fields such as water conservancy, hydroelectricity, water transportation, moisture proof and beautify the environment, etc.

The Pneumatic Shield Type River Dam is an advanced water control solution that integrates the benefits of both traditional steel dams and rubber dams. It is also known as a Pneumatic Water Control Dam, Pneumatic Weir Dam, Air Inflated Shield Dam, and Inflatable Shield Dam due to its innovative pneumatic operation system.

This modern dam consists of civil works, embedded components, shield plates, air bladders, and a pneumatic charging and discharging system. The shield plates provide a front barrier to retain water, while the rubber air bladders act as support, enabling controlled water flow. When fully opened, the dam lies flat on the riverbed, allowing free navigation. When closed, it forms an elegant overflow landscape, making it ideal for urban beautification and water management.

Explore more about Shield Type Dams and their applications on our official website.

Specifications of Pneumatic Shield Type River Dam

• Shield material: stainless steel, carbon steel.

• Rubber dam structure: one cloth two rubber, two clothes three rubber, three clothes four rubber, etc.

• Medium in Rubber Bladder: natural air.

• Height of retaining water: 0.5 m, 1 m, 1.5 m, 2 m, 2.5 m, 3 m, 3.5 m, 4 m, 4.5 m, 5 m, 5.5 m, 6 m, 6.5 m, 7 m, 7.5 m, 8 m, 8.5 m, 9 m, 9.5 m, 10 m.

• Gate Panel Size: standard is 5 m × n, channel width is not limited. Non-standard can be designed individually.

• Customization can be available.

For a broader range of water control solutions, check out our complete product catalog.

Key Features of Pneumatic Shield Type River Dam

1. Efficient Water Management

• Suitable for river regulation, flood control, irrigation, and groundwater recharge

• Functions as a Pneumatic Water Control Dam, offering multi-level control

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2. Advanced Structural Design

• No central piers needed, adaptable to any watercourse

• Fully collapsible, ensuring no resistance to water flow

• Shield plates and rubber bladders are designed for durability and high-pressure resistance

3. Environmental Safety & Sustainability

• Uses air as the inflation medium, causing zero water pollution

• Materials are harmless and designed for long-term environmental compatibility

4. Aesthetic & Functional Benefits

• When fully closed, the crest overflow creates a natural waterfall effect, enhancing the landscape

• Modular design ensures easy installation, maintenance, and repair

Applications of Pneumatic Shield Type River Dam

The Pneumatic Shield Type River Dam is widely used in various fields, including:

• Retaining Water & River Regulation

• Raising Existing Dams & Flood Control

• Irrigation & Groundwater Recharge

• Tide Protection & River Estuary Barriers

• Power Generation & Hydroelectric Support

• Urban Landscaping & Water Beautification

• Community & Infrastructure Protection (e.g., roads, garages)

• Ice Control for Hydroelectric Facilities

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