Working principle of the Tubebarrier
The Tubebarrier has an easy working principle and consists of a tube/tunnel of a flexible material to which a slab is attached at the front. At the front of the tube are filling openings situated at the bottom which will fill the tube with water. The slab may be weighted or anchored at the beginning of the slab, so that rising water does not lift the slab and passes below the weir. Because of adding the weight or anchor we avoid the so-called “piping”
As soon as the rising water flows over the slab a natural pressure will create a vacuum beneath the slab. When the rising water reaches the Tube it will fill up. The tube will fill up by the law of communicating vessels. The water in the tube balances out to the same level as the water in the river. When the water has subsided the tube will empties itself automatically. After that it is pretty easy to clean up and put away the weir for another time.
The Tubebarrier is innovative flood defences and can in many cases replace the Sand Bag or other tools against flooding. Among other things dikes can be increased in height with a simple exercise and are therefore made safer without electricity, compressed air or extra water. We use the rising water in order to take optimum advantage of the innovation. The more water, the more stability the innovation will have.