JPS5943603B2 - 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 is a prevention device for preventing floating structures such as ships anchored in a port from moving onto land when a high tide occurs due to a tsunami or typhoon. It is related to.

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.

If the floating structure remaining on land is a large structure such as a ship, it will be impossible to put it on the sea again, so it will have to be dismantled and scrapped, resulting in great damage.

Furthermore, if such large structures remain on roads or railways, a major traffic problem will occur.

This invention provides a device for preventing a floating structure on the sea from moving to land due to the above-mentioned high tide caused by a tsunami or a typhoon, and includes a guide section provided on a quay. It is characterized in that a floating protection body is inserted so as to be movable only vertically, and the protection body rises as the water level rises.

This invention will be described below with reference to embodiments and drawings.

FIG. 1 is a side view showing a first embodiment of the present invention, and FIG.
The figure is a side view showing a second embodiment of the invention, FIG. 3 is a side view showing a third embodiment of the invention, and FIG. 4 is a sectional view taken along line A-A in FIG. be.

In Fig. 1, 1 is a quay wall, 2 is a guide part provided on the front side of the quay wall 1, and 3 is a protective body inserted into the guide part 2 so as to be movable only up and down, and the protective body 3 can also be used as a floating body. It has a stop bar 3'.

4 is a floating structure on the sea such as a ship, 5 is a bollard, and 6 is a mooring line.

The first embodiment shown in FIG. 1 of the present invention has the above-described configuration, so that when the abnormal water level B due to a tsunami or storm surge occurs compared to the normal water level A, the protective body 3 is moved by the guide portion 2 due to the buoyancy of the floating body 3'.
At the same time, the floating structure 4 also rises to the surface and rises to the position indicated by the dashed line in FIG.

Therefore, the floating structure 4 on the sea is blocked by the protector 3 and does not move toward the land side.

Similarly, ballast may be added to the floating body 3' of the protection body 3 in advance, and the floating body 3' may be kept in a fixed state at normal water level A, and adjusted so that it floats at abnormal water level B.

A second embodiment of the present invention shown in FIG. 2 has a pit-like guide section 2 provided on the front surface of a quay 1, and is further provided with a water passage hole 7. Body 3 is inserted, and the effect is the same as described above.

A third embodiment of the present invention shown in FIGS. 3 and 4 has a rail-shaped guide section 2 provided on the front surface of a quay 1, and a protection body 3 having a floating body 3' inserted into the guide section 2. It is.

8 is a fender made of a rubber roller.

The operation and effect of this embodiment are the same as those of the first embodiment shown in FIG.

As explained above, according to the present invention, even if a tsunami due to an earthquake or a high tide due to a typhoon occurs, the protective body automatically adjusts to the water level without requiring power. Therefore, even if the floating structure attempts to move toward land, the protective body will prevent the floating structure from moving toward land, which is extremely useful in that it can prevent an abnormal situation in which the floating structure remains on land. effect is brought about.

[Brief explanation of drawings]

FIG. 1 is a side view of a first embodiment of the invention. FIG. 2 is a side view of a second embodiment of the invention. FIG. 3 is a side view of a third embodiment of the invention. FIG. 4 is a sectional view taken along the line A--A in FIG. 3. In the drawing, 1... quay, 2... guide part, 3...
... Protective body, 4 ... Floating structure on the sea, 5 ... Bollard, 6 ... Mooring rope, 7 ... Water hole, 8 ... Fender-1A ... Water level at normal time, B...Water level at the time of abnormality.

Claims (1)

[Claims] 1. A tsunami characterized by providing a guide part on the quay wall, inserting a floating protection body into the guide part so that it can move only up and down, and making the protection body rise as the water level rises. , a device to prevent floating structures from moving onto land due to high tides.