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How Mobile Flood Shields Can Save Cities With Flooding Problems
Flood gates are used throughout the world. They are distinct and unique in their purpose and design. Some of the gates are used to control small amounts of water using mitered barriers. Other gates are used to control massive volumes of water and protect property and people.
The most common barriers used on dams and major waterways are radial or fuse gates. The radial gates are controlled both mechanically and manually. The flood gates open and close in response to the level of water in a dam. When the sensors rise to a certain level, the valve opens and releases water. Some radial gates are connected to hydro-energy plants and water is released to the plant then returned to the dam from the plant.
The stationery pilings that are seen on top of many dams and high levees are called fuse gates. These gates are used to slow the flow of water when it spills over the dam or waterway. The fuse gates do not provide a means for water to be controlled and are often used as a stopgap measure when other barriers are not sufficient for slowing water.
Mobile flood gates are being used for a unique purpose. As the water level in oceans continues to rise, cities throughout the world are threatened by the influx of the rising water. These barriers have been designed to prevent flooding of major cities in the world.
The barriers are controlled from towers that overlook the flood barriers. When installed on a major river, they can be activated when the river begins to rise. Water can rise to a specified level before the barrier stops the flow of water. This keeps the city from flooding.
Since 1982 there have been mobile barriers designed and built in some major cities. The construction of barriers continues on cities that have been encroached upon for centuries and are threatened with disastrous flooding.
Research and studies have been done on this type of protection for several years. Scientists are concerned about the effects on the oceanic eco-system when the exchange of water from the feeder rivers to the ocean is disrupted. Some studies have shown that there is a significant impact to important nutrients for ocean life when there is a disruption in water exchange.
The mobile barriers stop the flow of water, but do not have the ability to utilize the water for hydro-energy. This has caused some concern as cities that require the use of the mobile gates often have a tremendous need for fuel.
Some of the barriers have been installed on feeder rivers at the mouth of the sea. These barriers require a significant amount of dock space that cannot be used by ships. Therefore, the generation of revenue for major shipping docks is reduced.
The barriers are activated on a daily basis in some cities where they are anchored in the ocean. These cities are endangered due to encroachment of rising water levels in the ocean. When the tide rises, the barriers are activated via a radio transmission. This action is resulting in further research on the effects to micro-organisms and sea life in the ocean surrounding the cities.
The use of aluminum flood shields in and around cities that are located near large bodies of water will continue as water levels rise. When the aluminum flood shields are designed and planned it takes up to twenty years for the gates to be completed and functional. The concern of science and industrialists is that this span of time makes the mobile barriers outdated before they are completed.
Fused Glass Poinsettia Bowl