JP2564192Y2 - Breakwater - Google Patents
BreakwaterInfo
- Publication number
- JP2564192Y2 JP2564192Y2 JP1990100086U JP10008690U JP2564192Y2 JP 2564192 Y2 JP2564192 Y2 JP 2564192Y2 JP 1990100086 U JP1990100086 U JP 1990100086U JP 10008690 U JP10008690 U JP 10008690U JP 2564192 Y2 JP2564192 Y2 JP 2564192Y2
- Authority
- JP
- Japan
- Prior art keywords
- wave
- swash plate
- breakwater
- plate
- water surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Revetment (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は消波堤に関するものである。[Detailed description of the invention] [Industrial application field] The invention relates to a breakwater.
［従来の技術］ 第２図及び第３図は従来の消波堤の一例を示すもの
で、図中１は海水の静水面、２は波、３は波の進行方
向、４は進行方向３後方の沖側、５は進行方向３前方の
岸側、６は海底である。７は沖側４上部が静水面１下に
位置し岸側５上部が静水面１上に位置する波２の進行方
向３に対して上り勾配で傾斜された斜板、８は斜板７を
支えるスリーブ状をした脚部、９は脚部８内部を通され
て海底６へ打込まれた鋼管杭である。[Prior Art] FIGS. 2 and 3 show an example of a conventional breakwater, wherein 1 is a still water surface of seawater, 2 is a wave, 3 is a traveling direction of a wave, and 4 is a traveling direction of 3 Offshore, 5 on the shore, 3 in the forward direction, 6 on the seabed. Reference numeral 7 denotes a swash plate whose upper part on the offshore side 4 is located below the still water surface 1 and whose upper part on the shore side 5 is inclined upward with respect to the traveling direction 3 of the wave 2 which is located on the still water surface 1. A supporting sleeve-shaped leg portion 9 is a steel pipe pile that is driven into the seabed 6 through the inside of the leg portion 8.
10は斜板７上方を通る波、11は斜板７下方を通る波で
ある。10 is a wave passing above the swash plate 7, and 11 is a wave passing below the swash plate 7.
尚、上記斜板７は、例えば、外洋に面した海岸部や沖
合の海面付近に設置される。The swash plate 7 is installed, for example, near the coast facing the open sea or near the sea surface offshore.
而して、斜板７の上方を通る波10は、斜板７上で破砕
され且つ斜板７に上り反射波となって波２のエネルギー
が散逸される。そして、斜板７の上方を通過した波10は
波10の下方を通過した波11と干渉して波２のエネルギー
が更に散逸されることにより、消波が行われるようにな
っている。Thus, the wave 10 passing above the swash plate 7 is crushed on the swash plate 7 and rises to the swash plate 7 as a reflected wave, whereby the energy of the wave 2 is dissipated. Then, the wave 10 passing above the swash plate 7 interferes with the wave 11 passing below the wave 10, and the energy of the wave 2 is further dissipated, so that the wave is eliminated.
［考案が解決しようとする課題］ しかしながら、上記した如き消波堤では、良好な消波
性能を発揮し得る没水深h1（斜板７上面の静水面１下の
深さ）及び天端高h2（斜板７上面の静水面１上の高さ）
が確保されるような傾斜角げ斜板７を設置する必要があ
る為、消波堤が波２の進行方向３に比較的大きな幅寸法
Ｌとなってしまい、よって斜板７を支える脚部８の本数
及び該脚部８内部を通されて海底６に打込まれる鋼管杭
９本数が増加し、施工に要する工期の延長或いは施工コ
ストの増加を招いていた。Assignments devised to be Solved] However, in the wave dissipating Tsutsumi such described above, deaths depth h 1 (swash plate 7 top still water 1 below depth) capable of exhibiting good wave-dissipating performance and Tentan High h 2 (height above the still water surface 1 above the swash plate 7)
It is necessary to install the inclined angled swash plate 7 so that the swash plate 7 can be secured, so that the breakwater has a relatively large width L in the traveling direction 3 of the wave 2 and, therefore, the leg supporting the swash plate 7 The number of steel pipe piles 8 and the number of steel pipe piles 9 to be driven into the seabed 6 through the inside of the legs 8 are increased, resulting in an increase in the construction period required for construction or an increase in construction costs.
又、特定の波周期において、水面が斜板７下面を打つ
ことによる上向き方向の衝撃力が発生することがあり、
設計上の問題点となっていた。Further, in a specific wave cycle, an upward impact force may be generated due to the water surface hitting the lower surface of the swash plate 7,
This was a design problem.
本考案は、上述の実情に鑑みてなしたもので、消波性
能を低減することなく消波堤を図ると共に上向き方向の
衝撃力の発生を低減することを目的としている。The present invention has been made in view of the above situation, and has an object to provide a breakwater without reducing the wave breaking performance and to reduce the generation of an upward impact force.
［課題を解決するための手段］ 本考案は一部分が静水面下にあり他の部分が静水面上
にあって波の進行方向に対し上り勾配で傾斜した斜板の
下方に、該斜板と所要の間隔を有して略水平に配置した
下側板を設けたことを特徴とする消波堤にかかるもので
ある。[Means for Solving the Problems] In the present invention, the swash plate and the swash plate are provided below a swash plate, a part of which is below a still water surface and the other part of which is on a still water surface and which is inclined upwardly with respect to the traveling direction of waves. The present invention relates to a breakwater, wherein a lower plate arranged substantially horizontally with a required interval is provided.
［作用］ 従って本考案では、沖側からの波のエネルギーが比較
的集中している表層部分が、斜板と下側板とによって上
下に分割されて消波されることになる。[Operation] Accordingly, in the present invention, the surface layer portion where the energy of the waves from the offshore is relatively concentrated is split up and down by the swash plate and the lower plate, and the wave is eliminated.
即ち、前記表層部分の上側域は、斜板の上方を通る波
となって前記斜板上で破砕され且つ斜板より反射波とな
って波のエネルギーを散逸され、又、斜板の上方を通過
してしまった波も下側板の下方を通過した比較的エネル
ギーの小さな波と干渉することにより更に散逸される。In other words, the upper region of the surface layer portion becomes a wave passing above the swash plate, is crushed on the swash plate, becomes a reflected wave from the swash plate, dissipates the energy of the wave, and passes over the swash plate. Waves that have passed are further dissipated by interfering with relatively low energy waves that have passed below the lower plate.
一方、前記表層部分の下側域は、前記斜板の下方に配
置した下側板によって水粒子の移動を拘束されることに
より波のエネルギーが消失されて消波される。On the other hand, the lower region of the surface layer portion is restrained from moving the water particles by the lower plate disposed below the swash plate, so that the energy of the wave is lost and the wave is eliminated.
これによって、波の進行方向に対する消波堤の幅寸法
を従来より小さくしても従来と略同等の消波特性を得る
ことが可能となる。Thus, even if the width dimension of the breakwater with respect to the traveling direction of the wave is made smaller than in the past, it is possible to obtain approximately the same wave-damping characteristics as in the past.
［実施例］ 以下、図面に基づいて本考案の実施例を説明する。Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
第１図は本考案の消波堤の一実施例であり、図中第２
図・第３図と同一の符号を付した部分は同一物を表わし
ている。FIG. 1 shows an embodiment of a breakwater according to the present invention.
3 and 3 denote the same parts.
沖側４上部が静水面１下に位置し岸側５上部が静水面
１上に位置するように波２の進行方向３に対して上り勾
配で傾斜され且つ従来の斜板７（第２図及び第３図参
照）より水没部分を短かくした斜板12を、従来と同様に
脚部８及び鋼管杭９を介して外洋に面した海岸部や沖合
の海面付近に設置し、更に、前記斜板12の下方に、該斜
板と所要の間隔を有して略水平に配置した下側板13を設
けて消波堤14を構成する。A conventional swash plate 7 (FIG. 2) is inclined upward with respect to the traveling direction 3 of the wave 2 so that the upper part of the offshore 4 is located below the still water surface 1 and the upper part of the shore side 5 is located above the still water surface 1. And a swash plate 12 having a shorter submerged portion than that of the prior art. Below the swash plate 12, a lower plate 13 which is disposed substantially horizontally with a predetermined interval from the swash plate is provided to constitute a breakwater 14.
ここで、前記下側板13の没水深h1は、従来の斜板７の
没水深と略同等等の高さを確保し、且つ前記下側板13上
方の斜板12の天端高h2は、従来の斜板７の天端高と略同
等の高さを確保し得るようにする。Here, death depth h 1 of the lower side plate 13 secures a height substantially equal such a sinking depth of the conventional swash plate 7 and crest height h 2 of the lower side plate 13 above the swash plate 12 is Thus, a height substantially equal to the top end height of the conventional swash plate 7 can be secured.
よって、下側板13上方の斜板12の下端部は、前記下側
板13の没水深h1を上下方向に分割する位置に配されるこ
とになる。Accordingly, the lower end of the lower plate 13 above the swash plate 12 will be disposed at a position to divide the deaths depth h 1 of the lower side plate 13 in the vertical direction.
尚、図中15は斜板12上方を通る波、16は下側板13下方
を通る波を示す。In the drawing, reference numeral 15 denotes a wave passing above the swash plate 12, and 16 denotes a wave passing below the lower plate 13.
而して、沖側４からの波２は、斜板12及び下側板13に
よって波２のエネルギーが比較的集中する表層部分がＡ
とＢとに分割されて消波される。Thus, the surface layer where the energy of wave 2 is relatively concentrated by swash plate 12 and lower plate 13 is A
And B and the wave is eliminated.
即ち、前記表層部分Ａは斜板12の上方を通る波15とな
って前記斜板12上で破砕され且つ斜板12より反射波とな
って波２のエネルギーが散逸され、又、斜板12の上方を
通過した波15は下側板13の下方を通過した比較的エネル
ギーの小さな波16と干渉して波２のエネルギーが更に散
逸されることにより消波される。That is, the surface portion A becomes a wave 15 passing above the swash plate 12, is crushed on the swash plate 12, becomes a reflected wave from the swash plate 12, and the energy of the wave 2 is dissipated. The wave 15 passing above the lower plate 13 interferes with the wave 16 having a relatively low energy passing below the lower plate 13 and is canceled by further dissipating the energy of the wave 2.
又、前記表層部分Ａより深い部分Ｂは、前記斜板12の
下方に配置した下側板13によって波２の上下方向の水粒
子の移動を拘束されることにより波２のエネルギーが消
失されて消波される。In a portion B deeper than the surface layer portion A, the lower plate 13 disposed below the swash plate 12 restricts the movement of water particles in the vertical direction of the wave 2 so that the energy of the wave 2 is lost. Waved.
従って上記によれば、沖側４からの波２を表層部分Ａ
と深い部分Ｂとに分割して消波することができるので、
波２の進行方向３に対する消波堤14の幅寸法１を従来の
消波堤の幅寸法Ｌ（第３図参照）より小さくしても従来
と略同等の消波特性を得ることができ、よって、斜板12
と下側板13を支える脚部８、及び該脚部８内を通されて
海底６に打込まれる鋼管杭９の本数を減らすことが可能
となるので、消波堤14の施工に要する工期を著しく短縮
することができ且つ施工コストを大幅に削減することが
できる。Therefore, according to the above, wave 2 from offshore 4 is
And the deep part B can be broken and
Even if the width 1 of the breakwater 14 with respect to the traveling direction 3 of the wave 2 is smaller than the width L of the conventional breakwater (see FIG. 3), it is possible to obtain substantially the same wave-damping characteristics as the conventional one. And therefore swash plate 12
It is possible to reduce the number of legs 8 supporting the lower plate 13 and the number of steel pipe piles 9 passed through the legs 8 and driven into the seabed 6, so that the construction period required for the construction of the breakwater 14 is reduced. It can be significantly reduced and the construction cost can be greatly reduced.
又、下側板13により斜板12下の水粒子の上下方向の移
動が拘束されるので、斜板12の水面を水面が激しく打つ
ことがなくなり、上向き方向の衝撃力を大幅に低減する
ことができる。Also, since the vertical movement of the water particles below the swash plate 12 is restrained by the lower plate 13, the water surface does not hit the water surface of the swash plate 12 violently, and the upward impact force can be greatly reduced. it can.
尚、本考案の消波堤は、上述の実施例にのみ限定され
るものではなく、斜板及び下側板を支える支持構造とし
ては鋼管杭を用いず脚部のみで支持する重力設置式とし
ても良いこと、又、設置水域は海域以外に河川や湖等で
も良いこと、その他本考案の要旨を逸脱しない範囲無い
において種々変更を加え得ることは勿論である。Note that the breakwater of the present invention is not limited to the above-described embodiment, and the support structure for supporting the swash plate and the lower plate may be a gravity installed type that supports only the legs without using steel pipe piles. Of course, the setting water area may be a river or a lake in addition to the sea area, and it is needless to say that various changes can be made without departing from the scope of the present invention.
［考案の効果］ 以上説明したように本考案の消波堤によれば、下記の
如き種々の優れた効果を奏し得る。[Effects of the Invention] As described above, according to the breakwater of the present invention, various excellent effects as described below can be obtained.
（Ｉ）沖側からの波を斜板と下側板とにより分割して消
波することができるので、波の進行方向に対する消波堤
の幅寸法を従来より小さくしても従来と略同等の消波特
性を得ることができ、よって斜板及び下側板を支える脚
部や鋼管杭等の支持構造を簡素化して、消波堤の施工に
要する工期を著しく短縮することができ且つ施工コスト
を大幅に削減することができる。(I) Since waves from the offshore side can be divided and broken by the swash plate and the lower plate, even if the width of the breakwater with respect to the traveling direction of the wave is made smaller than before, it is almost the same as before. Wave-damping characteristics can be obtained, so that the supporting structure of the legs and steel pipe piles supporting the swash plate and lower plate can be simplified, the construction period required for the construction of the breakwater can be significantly reduced, and the construction cost can be reduced Can be greatly reduced.
（II）下側板により斜板下の水粒子の上下方向の移動が
拘束されるので、斜板の下面が激しく打つことがなくな
り、上向き方向の衝撃力を大幅に低減することができ
る。(II) Since the vertical movement of the water particles below the swash plate is restricted by the lower plate, the lower surface of the swash plate is not hit hard, and the upward impact force can be significantly reduced.
第１図は本考案の消波堤の一実施例の側面図、第２図は
従来例を示す斜視図、第３図は第２図の側面概略図であ
る。 図中、１は静水面、２は波、３は波の進行方向、12は斜
板、13は下側板、14は消波堤を示す。1 is a side view of an embodiment of a breakwater according to the present invention, FIG. 2 is a perspective view showing a conventional example, and FIG. 3 is a schematic side view of FIG. In the figure, 1 is a still water surface, 2 is a wave, 3 is a traveling direction of a wave, 12 is a swash plate, 13 is a lower plate, and 14 is a breakwater.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭50−22438（ＪＰ，Ａ) 特開 昭63−197709（ＪＰ，Ａ) 実願 昭63−73182号（実開 平１− 176121号）の願書に添付した明細書及び 図面の内容を撮影したマイクロフィルム （ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-50-22438 (JP, A) JP-A-63-197709 (JP, A) Japanese Utility Model Application No. 63-73182 (Japanese Utility Model Application No. 1-176121) Microfilm (JP, U) of the contents of the specification and drawings attached to the application
Claims (1)
にあって波の進行方向に対し上り勾配で傾斜した斜板の
下方に、該斜板と所要の間隔を有して略水平に配置した
下側板を設けたことを特徴とする消波堤。1. A swash plate having a required space below a swash plate which is partly below a still water surface and another part which is above a still water surface and which is inclined upwardly with respect to the traveling direction of waves. A breakwater characterized by having a lower plate arranged substantially horizontally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990100086U JP2564192Y2 (en) | 1990-09-25 | 1990-09-25 | Breakwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990100086U JP2564192Y2 (en) | 1990-09-25 | 1990-09-25 | Breakwater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0457518U JPH0457518U (en) | 1992-05-18 |
| JP2564192Y2 true JP2564192Y2 (en) | 1998-03-04 |
Family
ID=31842476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990100086U Expired - Lifetime JP2564192Y2 (en) | 1990-09-25 | 1990-09-25 | Breakwater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2564192Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4721318B2 (en) * | 2004-08-24 | 2011-07-13 | 国土交通省北陸地方整備局長 | Water-flow floating material collection device |
| JP5267440B2 (en) * | 2008-12-09 | 2013-08-21 | Ｊｆｅエンジニアリング株式会社 | Legged transmission type wave-absorbing structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5022438A (en) * | 1973-07-04 | 1975-03-10 | ||
| JPS63197709A (en) * | 1987-02-13 | 1988-08-16 | Mitsui Constr Co Ltd | Break-water |
| JPH01176121U (en) * | 1988-06-01 | 1989-12-15 |
-
1990
- 1990-09-25 JP JP1990100086U patent/JP2564192Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0457518U (en) | 1992-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2564192Y2 (en) | Breakwater | |
| CN109537524A (en) | A kind of anti-camber curtain wall type breakwater | |
| US2184462A (en) | Bulkhead, sea wall, and similar structures | |
| JP4078006B2 (en) | Wave-resistant large floating body | |
| JPH11286916A (en) | Wave absorbing caisson | |
| JPS62292587A (en) | Underwater floating body for semi-submerged marine structure | |
| CN107503321A (en) | A kind of board-like mountain type breakwater | |
| CN207121866U (en) | A kind of board-like mountain type breakwater | |
| JP4519585B2 (en) | Double leaf type dike using wave-dissipating block with inclined plate | |
| JP4370375B2 (en) | High wave breakwater breakwater | |
| JP2528031B2 (en) | Rubble type breakwater | |
| US7404692B2 (en) | Breakwater generating structure | |
| JPS6346504Y2 (en) | ||
| JP2000352028A (en) | Wave dissipation type wave force breaking caisson | |
| JP2639577B2 (en) | Wave absorber | |
| JP3457755B2 (en) | Transmission type wave-breaking structure | |
| JP2586950Y2 (en) | Wave absorber | |
| JPH0624407Y2 (en) | Floating structure | |
| JPH0823129B2 (en) | Double slope breakwater | |
| JP2007009404A (en) | Wave dissipating structure | |
| JPH0596119U (en) | Submarine | |
| JPS5849235Y2 (en) | Anti-vibration structure for workbench legs | |
| JPH047402A (en) | Structure for reducing force of shock wave on water surface structure | |
| KR20150048278A (en) | Supperstructure having Double Slope and Protrusion | |
| JPH047404A (en) | Wave dissipation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |