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The Application of Domestic Air - shield Dams

发布时间:2020-09-14 点击量:3594
Do you know what applications domestic air - shield dams have? Now, the editor will give you a detailed popular - science introduction. Partners who want to know can read along!

Applications of Domestic Air - shield Dams

1. Water Storage

Domestic air - shield dams can increase the water storage capacity of rivers during the dry or water - scarce seasons, creating “reservoirs” in sections, which brings good ecological benefits. They can effectively coordinate the relationship between the water - diversion capacity of spillways and the reservoir water - storage level, increasing the water - storage capacity of existing reservoirs. Moreover, they can reduce the policy - and - funding - related difficulties (such as flooding problems) brought about by increasing water storage. When the discharge capacity of the existing spillway is insufficient, using this type of dam/gate can maintain the crest elevation without affecting the reservoir water - storage level and power - generation benefits.

2. Landscape

The overflowing of the domestic air - shield dam's crest forms waterfalls. Landscape lights and audio systems can be installed on the PSRD, creating a wonderful night view and a pleasant environment.

3. Irrigation

It can accurately control the water level and diversion flow rate of irrigation channels. When the channel flow changes, it can automatically control the water level in front of the water - diversion structure to ensure the even distribution of water.

4. Water Diversion and Flood Discharge

It can be applied to the flood - diversion work of rivers, enabling automatic adjustment of water flow. During the flood season, it can automatically control the upstream water level, keeping it at a low level, and use the flood to carry away the sediment deposited upstream. Or it can lie flat entirely to ensure the flood - discharge capacity of the original river channel.

 

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5. Power Generation

It creates a high water level, enhancing the power - generation capacity of hydropower stations. Generally, the water - passing depth at the top of a common sluice gate is only 0.25 - 0.5m. The PSRD (presumably a specific part of the air - shield dam) can create a higher water head and accurately control the upstream water level. During the flood season, it can safely discharge floodwater, and after the flood season, the PSRD rises to block water. In addition, a stable ice cover can form upstream in winter, preventing ice jams at the water intake of the power station.

6. Fish Pass and Environmental Protection

A series of air - shield dams can be used to form a stepped fish pass, controlling the flow rate and velocity to enable fish to pass the dam smoothly. Controlling the upstream water level can prevent the sudden flooding of waterbird nests in the reservoir area. A stable water level can improve the safety and natural landscape of the reservoir area.

7. Protection of Roads and Garages

The PSRD can be installed at the entrances of garages and subways to prevent storm floods from entering. It can also be placed at the gaps in flood - control dikes and be closed immediately when floods come.

8. Navigation

The PSRD is an ideal form of gates for the upstream and downstream of ship locks. It can accurately control the water levels of the upstream and downstream. When the dam collapses, the steel plate covers the rubber air - bag to ensure the smooth passage of ships. It reduces the complex gate - opening and - closing system, is flexible and easy to operate, and reduces the construction and maintenance costs of ship locks.
Besides the applications of domestic air - shield dams mentioned above, air - shield dams are also being constructed in many other places in China. This shows the importance of domestic air - shield dams!