Tsunami protection dike

Abstract

A protection dike that can effectively resist tsunami attacks. The side of the protection dike facing the ocean is a curved surface. Seen from the cross section, it is a curved surface with a narrow upper base and a wider lower base. The side trapezoid, whose curved side is shaped like a horizontal concave upward parabola, represents the parabolic curved surface of the protection dike facing the ocean. Because the reaction force of the curved surface of the breakwater gradually changes the movement direction of the waves, the waves rushing to the shore quickly rush to the sky along the shape of the curved surface, and then fall back into the sea, avoiding the seawater rush caused by the waves crossing the breakwater. A huge disaster that destroyed buildings and flooded the land. According to the appropriate terrain or coastal shape, building a tsunami protection dike at the entrance of the harbor can weaken the impact force of the tsunami and protect the ships parked in the harbor from the tsunami attack.

Description

[0001] Field [0002] The invention relates to a tsunami protection embankment capable of effectively resisting tsunami, storm surge or sea wave attack. Background technique [0003] In recent years, reports of major disasters caused by tsunamis or storm surges have left a deep impression on people. For example, "Climate Change and Natural Disasters" edited by Huang Jianmin and Xu Zhihua (Beijing, Meteorological Publishing House, December 2005) specifically discusses the causes of tsunamis, especially the major disasters caused by the Chilean and Indonesian tsunami. vivid description. [0004] Causes of tsunamis usually come from the seabed, such as submarine earthquakes, volcanic eruptions, or movement of seabed strata. If a meteorite falls into the sea, it will also cause a tsunami. Tsunamis occur once a year on average, causing great losses to human beings. [0005] The velocity of the tsunami is consistent, from the sea surface to the bottom of the sea, the velocity of...

AI Technical Summary

Problems solved by technology

[0027] First, when the huge tsunami waves hit the coastal protection dike, its overwhelming force instantly acts on the protection dike, so that the entire plane of the protection dike in the direction of the sea is almost at the same time under the huge impact of the waves, and it is easy to cause the embankment to be washed away. ACCIDENT

[0028] Second, the tsunami waves easily rushed over and overflowed the protective embankment by virtue of the rapid horizontal impact momentum, causing disasters of flooding and submerging the towns, streets, ports and various urban facilities within the embankment

This method for preventing tsunami has a certain effect of alleviating the impact force of waves for small waves; but for larger waves caused by tsunami, the impact force of the waves is huge, relying on "fixed on the metal inverted fork" The "traction rope spring under the seabed" is helpless, that is, the huge waves caused by the tsunami will undoubtedly wash away the anti-tsunami wall floating on the seawater and composed of large water pockets.

Moreover, the anti-tsunami wall composed of such large water and air pockets also has the disadvantages of being difficult to build and also being difficult to maintain for a long time after being built.

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