JPH06341123A - Floating breakwater - Google Patents

Abstract

PURPOSE:To obtain a high wave-dissipating effect by forming a wave-dissipating mechanism section with a plurality of wing-shaped shelves and installing an embankment-body stabilizing holding mechanism with a floater to the lower section of the wave-dissipating mechanism section. CONSTITUTION:A wave-dissipating mechanism section 11 with an approximately streamline-shaped wing-shaped shelves 14 having clearances in the vertical direction is formed, and posts 16 consisting of steel, etc., are mounted into through-holes 15 formed to the shelves 14. An embankment-body stabilizing holding mechanism 12 with bearing members 17 set up at the base ends of the posts 16 and floaters 18 composed of a buoyancy material is installed to the lower section of the wave-dissipating mechanism section 11, and fixed onto anchor bodies 20 by anchor connecting members 21. Accordingly, the shelves 14 are arranged near a water surface, and entering waves are changed into a horizontal motion (b) from a circular motion (a) within the spaces of the shelves 14, thus stably holding a floating wave-dissipating embankment 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floating breakwater with high wave breaking efficiency.

[0002]

2. Description of the Related Art A conventional floating wave breakwater is generally known as a rectangular type in which a wave breaking mechanism section and a floater section are integrated.

[0003]

However, in the conventional floating wave breakwater, the breakwater mechanism part and the floater part are integrally structured, so that the breakwater body fluctuates in conjunction with the wave amplitude motion. Therefore, there was a problem that the wave-dissipating efficiency was not good. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a floating breakwater having a high wave-dissipating efficiency without the wave-dissipating efficiency being affected by vertical movement of the sea surface due to waves.

[0004]

A method according to the above-mentioned object.
The floating breakwater described above is a breakwater mechanism provided with a plurality of wing-shaped shelves arranged with a gap in the up-down direction, and a breaker that is provided integrally with the floater under the breakwater mechanism unit. And a body stability holding mechanism. In addition, claim 2
The floating breakwater described above is the floating breakwater according to claim 1,
An anchor portion is connected to the bank body stable holding mechanism.

[0005]

In order to explain the function of the floating breakwater according to claim 1 or 2 in detail, the function of the waves and floating breakwater will first be considered. A wave is an amplitude motion consisting of a circular motion of water particles (that is, water itself) propagating in the harbor and disturbing the harbor. It is the vertical movement of the sea level. Also,
The amplitude motion of the waves shows a circular motion on the surface of the water, but changes to an elliptical motion and further to a horizontal motion as the water depth decreases. On the other hand, the floating breakwater is to control the waves and ensure the quietness of the harbor. From this, claim 1 or 2
In the floating breakwater described, since the wave-dissipating mechanism part having a plurality of wing-shaped shelves arranged with a vertical gap is arranged near the water surface, the circular motion of the water particles of the passing waves Is converted into a horizontal movement that does not affect the tranquility of the port by the plurality of shelves. Since the dam body stable holding mechanism is installed in an underwater location where water particles move gently, it is not affected by vertical movement of the water surface. As a result, the wave-dissipating mechanism can be held constant, and efficient wave-dissipating can be performed by the floating breakwater.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings to provide an understanding of the present invention. FIG. 1 is a sectional view of a floating breakwater according to an embodiment of the present invention. As shown in FIG. 1, a floating wave breakwater 10 according to an embodiment of the present invention includes an upper wave breaking mechanism section 11, a dam body stable holding mechanism 12 below the wave breaking mechanism section 11, and a bank. The anchor portion 13 is connected to the body stability holding mechanism 12. These will be described in detail below.

The shelf 14 which constitutes the wave-dissipating mechanism portion 11 and which is arranged with a gap in the vertical direction is made of steel, plastic, or the like, and has a substantially streamlined cross section. Although depending on the place of use, the length thereof is 3 to 40 m and the width thereof is about 10 to 20 m, and the through holes 15 are provided at the front and rear at an appropriate pitch. Then, the shelves 14 are held at predetermined intervals by columns 16 made of steel or the like having a predetermined length and mounted in the through holes 15, respectively.

The bank body stable holding mechanism 12 includes the pillar 1
A support member 17 made of steel or the like provided at the base end of 6,
It has a floater 18 made of buoyant material such as Styrofoam provided on the support member 17, and a fixing member 19 made of steel or the like and covering the floater 18. The anchor portion 13 has an anchor body 20 made of concrete or the like, and an anchor connecting member 21 made of a chain, rope or the like for connecting the anchor body 20 and the bank body stable holding mechanism 12. Each of the parts is manufactured in advance in a factory, assembled in a factory or on-site, fixed in line with a predetermined sea by the anchor body 20 placed on the seabed 22 to form the floating breakwater 10. There is.

As described above, since the wing-shaped shelves 14 are arranged near the water surface, the incoming waves change from circular motion a to horizontal motion b in the gap between the wing-shaped shelves 14 as shown in FIG. To do. Further, since the floater 18 of the dam body stable holding mechanism 12 that supports the dam body is arranged in the water in which the movement of water particles due to the waves is relatively gentle, the floating breakwater 10 is not directly affected by the waves. You can keep stable. By combining these two actions, the floating wave breakwater 10 can perform high-efficiency wave breaking. In this embodiment, the shelves 14 are provided in three stages, but other numbers of shelves may be provided depending on the place of use.

[0010]

As is apparent from the above description, the floating breakwater according to the first and second aspects has a high wave breaking effect without being affected by the vertical movement of the water surface due to waves. Therefore,
It can be used as a breakwater in the deep ground or on soft ground where the construction of a breakwater is difficult or the economic burden is large.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a floating breakwater according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Floating wave breakwater 11 Wave breakage mechanism part 12 Levee body stable holding mechanism 13 Anchor part 14 Shelf 15 Through hole 16 Strut 17 Support member 18 Floater 19 Fixing member 20 Anchor body 21 Connecting member 22 Submarine ground

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 000112196 PS 3-1 Marunouchi 3-4-1, Chiyoda-ku, Tokyo (71) Applicant 000166627 Goyo Construction Co., Ltd. 2--2-8 Koraku, Bunkyo-ku, Tokyo No. (71) Applicant 000222668 Toyo Construction Co., Ltd. 4-1-1 Koraibashi, Chuo-ku, Osaka-shi, Osaka (71) Applicant 000182030 Wakatsuki Construction Co., Ltd. 1-4-7 Hamacho, Wakamatsu-ku, Kitakyushu, Fukuoka (72) Inventor Hideteru Sato 4-6-1 Takezaki-cho, Shimonoseki City, Yamaguchi Prefecture, Shimonoseki Research and Design Office, 4th Port Construction Bureau, Ministry of Transport (72) Inventor Katsuhisa Kamizozo, No. 1-1 Komondo-cho, Hakata-ku, Fukuoka-shi, Fukuoka (72) Inventor Toshio Shimomori 3-14-17 Kyomachi, Kokurakita-ku, Kitakyushu, Fukuoka Sanyo Consultant Co., Ltd. Branch (72) Inventor Koichi Sato 2-6-3 Otemachi, Chiyoda-ku, Tokyo Inside Nippon Steel Co., Ltd. Building Materials Development Technology Department (72) Inventor Kotonori Kuno 5-6-20 Nakasu, Hakata-ku, Fukuoka-shi, Fukuoka No. 72, Inventor Yoshiaki Kobayashi 1-12-11 Kego, Chuo-ku, Fukuoka-shi, Fukuoka Prefecture Goyo Construction Co., Ltd., Kyushu Branch (72) Inventor Yasuo Wada Chuo-ku, Osaka-shi, Osaka Koraibashi 4-1-1 1-1 Toyo Construction Co., Ltd. (72) Inventor Yukihiko Goto 2-1-1 Nakagou, Hakata-ku, Fukuoka-shi, Fukuoka Wakatsuki Construction Kyushu Branch

Claims (2)

[Claims] 1. A dam-breaking mechanism unit provided with a plurality of wing-shaped shelves arranged with a gap in the vertical direction, and a floater that is provided integrally with a floater and is installed under the wave-breaking mechanism unit. A floating breakwater having a mechanism. 2. The floating breakwater according to claim 1, wherein an anchor portion is connected to the dam body stable holding mechanism.