JPS5935620Y2 - Device to prevent floating structures from moving onto land due to tsunamis and storm surges - Google Patents

Description

[Detailed description of the invention] This invention relates to a device to prevent floating structures such as ships anchored in a port from running aground on land in the event of a high tide caused by a tsunami or typhoon. It is.

Traditionally, when a storm surge occurs due to a tsunami or typhoon, floating structures such as ships anchored in ports cut their mooring lines and
Situations may occur where they move onto land and remain on land after the waves and tides recede.

Since the floating structures such as ships remaining on land are large and it is almost impossible to return them to the sea, they have no choice but to be dismantled and scrapped, resulting in great damage. It turns out.

Furthermore, if large structures remain on roads or railways, they will cause major traffic problems.

This idea provides a device to prevent floating structures from moving onto land due to high tides caused by tsunamis or typhoons as described above, and consists of a guide member fixed on a quay and , a tank that can be filled with water and is inserted into the guide member so as to be able to move up and down along the guide member, and one end is connected to the sea by a mooring cable that is fixed to the guide member via a pulley provided at the bottom of the tank. The floating structure is moored, and the tank is characterized in that it moves up and down as the floating structure moves up and down due to changes in water level.

This invention will be explained by way of examples with reference to the drawings.

1 and 2 are front views showing the operation mode of the anti-movement device according to the embodiment of this invention, FIG. 3 is a sectional view taken along line C-C in FIG. 1, and FIG. 4 is a vertical sectional view of the tank. It is a front view.

In the figure, reference numeral 1 denotes a guide member fixed on a quay wall 2, and grooves 3 are formed on both sides of the guide member in the vertical direction.

A tank 4 is inserted into the guide member 1 so as to be vertically movable along the guide member 1, and water can be poured into the tank.

A pulley 5 is provided at the center of the bottom of the tank 4, and stoppers 6 are protruded from both sides of the tank 4, and the stoppers 6 are inserted into the grooves 3 of the guide member 1.
By coming into contact with the upper end of the groove 3, the tank 4 is prevented from being pulled out from the guide member 1.

7 is a mooring cable, one end of which is connected to the guide member 1 via a pulley 5.
A floating structure 8 such as a ship is moored to the other end.

Because it is intercepted in this way, when the normal water level A as shown in Fig. 1 becomes abnormal water level B as shown in Fig. 2 due to a tsunami or storm surge, the floating structure 8
As the tank 4 floats up, the mooring cable 7 causes the tank 4 to rise along the guide member 1, forming a wall.

As a result, movement of the floating structure 8 onto the quay wall 2 is completely prevented.

At this time, there is no risk that the tank 4 will come out of the guide member 1 due to the action of the stopper 6.

An appropriate amount of water is injected into the tank 4 so that tension is always applied to the mooring cable 7 regardless of the water level.

When the water level returns to normal, the tank 4 naturally returns to its original state.

As explained above, according to this invention, even if the water level suddenly rises due to a tsunami or storm surge, the tank rises accordingly, completely preventing floating structures from moving onto land. This results in extremely useful effects such as:

[Brief explanation of the drawing]

1 and 2 are front views showing the operating mode of the anti-movement device according to the embodiment of this invention, FIG. 3 is a sectional view taken along line C-C in FIG. 1, and FIG. 4 is a vertical sectional view of the tank. It is a front view. In the drawings, 1... guide member, 2...
... Quay, 3... Ditch, 4... Tank,
5... Pulley, 6... Stroller 17.
...Mooring rope, 8...Floating structure on the sea, A
...Water level during normal times, B...Water level during abnormal times.

Claims (1)

[Scope of utility model registration request] It consists of a guide member fixed on a quay, and a tank that can be filled with water, which is inserted into the guide member so as to be able to move up and down along the guide member, and one end of which is connected to the guide via a pulley provided at the bottom of the tank. A tsunami or storm surge characterized in that a floating structure on the sea is moored by a mooring cable fixed to a member, and the tank moves up and down as the floating structure on the sea moves up and down due to changes in water level. A device to prevent floating structures from moving onto land.