JPS5857566B2 - Dividing and merging type wave-dissipating revetment block - Google Patents
Dividing and merging type wave-dissipating revetment blockInfo
- Publication number
- JPS5857566B2 JPS5857566B2 JP11440772A JP11440772A JPS5857566B2 JP S5857566 B2 JPS5857566 B2 JP S5857566B2 JP 11440772 A JP11440772 A JP 11440772A JP 11440772 A JP11440772 A JP 11440772A JP S5857566 B2 JPS5857566 B2 JP S5857566B2
- Authority
- JP
- Japan
- Prior art keywords
- waves
- dividing
- revetment block
- wall
- type wave
- 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
Links
- 241001070941 Castanea Species 0.000 claims description 4
- 235000014036 Castanea Nutrition 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Description
【発明の詳細な説明】
本発明は、沿岸地域における消波護岸ブロックに関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to wave-dissipating seawall blocks in coastal areas.
本発明を図面について説明すれば次のとおりである。The present invention will be described below with reference to the drawings.
即ち、第１図〜第４図に示す様に、重量をもたせて安定
化を図るための栗石１を内部に填充したコンクリート函
体２の波に面する前面側には突出させた底床版３と須坂
４が設けられている。That is, as shown in FIGS. 1 to 4, a concrete box 2 filled with chestnut stone 1 to provide weight and stability has a bottom slab protruding from the front side facing the waves. 3 and Suzaka 4 are provided.
底床版３と須坂４の間には背面に空間５を両側面にも空
間６をあけて直立した断面Ｖ字型の分流壁１を設け、須
坂と底床版を剛結して護岸ブロックＦを形成している。An upright diversion wall 1 with a V-shaped cross section is provided between the bottom slab 3 and the suzaka 4 with a space 5 on the back and a space 6 on both sides, and the suzaka and the bottom slab are rigidly connected to form a revetment block. It forms F.
この様な護岸ブロックＦを設置するには、水中地盤を均
して捨石８を捨てこんでおいて、捨石表面を床均しして
むいて、別な場所に設けられたブロック製作ヤードで造
られた護岸ブロックを、栗石を填充されない状態で、フ
ロートクレーン船等で運んで現場に並べて据付け、函体
内部に栗石を投入してから頂板コンクリートの一部を打
設して閉ぢ、函体背面の土砂の埋戻しを行なって作業を
終るわけである。To install such a revetment block F, the underwater ground is leveled, rubble 8 is thrown in, the surface of the rubble is leveled and peeled, and the blocks are built in a block manufacturing yard set up in a separate location. The revetment blocks, which were not filled with chestnut stone, were transported by a float crane ship, etc., and installed side by side at the site, and after putting the chestnut stone inside the box, a part of the top concrete was poured, and the box was closed. The work is completed by backfilling the back with earth and sand.
この様にして建設された護岸に対して、波浪が衝突する
と、一部の波ばＶ字形の断面の分流壁７にさえぎられて
はね返り、残余の波は分流壁Ｔの両側面の空間６を通過
して奥に浸入し、函体２の壁面に当って両隣の波と合流
して波浪同志の波圧が相殺することとなる。When waves collide with the seawall constructed in this way, some of the waves are blocked by the V-shaped cross section of the divider wall 7 and bounce back, and the remaining waves occupy the spaces 6 on both sides of the divider wall T. The waves pass through and enter the depths, hit the wall of the box 2, and merge with the waves on both sides, causing the wave pressures of the waves to cancel each other out.
分流壁７の両側面を波浪が通過するときに、分流壁に当
る一部の波浪はストップをかけられ、残る波浪は通過す
ることとなるので、当然その間に剪断作用が起り、波圧
は段階的に殺されることとなる。When waves pass through both sides of the dividing wall 7, some of the waves that hit the dividing wall are stopped, and the remaining waves are allowed to pass, so naturally a shearing action occurs during that time, and the wave pressure is gradually reduced. will be killed.
父、分流壁の奥の空間が両隣からの合流で波圧同志の相
殺作用が起るので、より効果的なこととなる。Father, it becomes more effective because the wave pressure cancels each other out when the space behind the dividing wall merges from both sides.
安定性について心配が無ければ、函体の部分は不要で、
この函体の部分に代えて単なる壁体を設けても差支えな
いわけである。If you are not concerned about stability, the box part is not necessary.
A simple wall may be provided in place of this box part.
要するに、分流壁による分流作用と分流壁背面における
合流作用とが起る様な構造となっていれば良いわけであ
る。In short, it is sufficient if the structure is such that a diversion effect by the diversion wall and a merging effect at the rear surface of the diversion wall occur.
従って、構造強度さえ十分であれば、須坂が無くても良
いわけであるし、頂板があっても護岸の高さが入きけれ
ば頂板と底床版の間にも・いて更に部分的な梁を水平に
打設したりなどして分流壁を函体に対して支えることを
しなけれＩ／ｉならないかも知れないわけである。Therefore, as long as the structural strength is sufficient, there is no need for the sub-saka, and even if there is a top plate, if the height of the revetment is high enough, there will be a partial beam between the top plate and the bottom slab. This means that it may be necessary to support the diversion wall against the box by pouring it horizontally.
又、第５図に示す様に分流壁９を函体のジヨイントライ
ン１０に合せておいた様な形としても良い。Alternatively, as shown in FIG. 5, the flow dividing wall 9 may be aligned with the joint line 10 of the box.
第６図に示すものは、分流壁１１をＵ字形にした恰好で
あっても良く、第７図の様に分流壁１２゜１２′を２分
割して両方の分流壁間から奥に抜けだす波浪を極端に押
える様な断面のものとしても差支えないわけである。In the case shown in Fig. 6, the diversion wall 11 may be U-shaped, and as shown in Fig. 7, the diversion wall 12゜12' is divided into two parts, and the diversion wall 11 is divided into two parts and extends deep from between both diversion walls. There is no harm in having a cross section that suppresses waves to an extreme extent.
但し、この様にすると、分流壁間を一部の波が通過する
際の波圧が大きいので、分流壁間をところどころ撃打１
３で撃いて構造的に強くして−ｒ−＜必要がある。However, if you do this, the wave pressure when some of the waves pass between the divider walls is large, so there will be some blows between the divider walls.
It is necessary to shoot at 3 and make it structurally strong.
従来、消波を目的とした護岸兼用ブロックは、いろいろ
の型式のものがあったが、単なる壁面に孔をあけるとか
、水平に凹凸のついた部材を取付けたものとか手のこん
だ形状のものが多かった。Conventionally, there have been various types of revetment blocks for the purpose of wave dissipation, but some have elaborate shapes, such as those with simple holes in the wall or those with horizontally uneven members attached. There were many.
そのため、製作が難しいことの他に、消波効果そのもの
の確認が困難であったのである。Therefore, in addition to being difficult to manufacture, it was also difficult to confirm the wave-dissipating effect itself.
元来波に関するエネルギー公式は、すべて実験を基礎と
した経験式であって、構造形状が決まるごとに消波効果
の実験をして確認することが多かったのである。Originally, all energy formulas related to waves were empirical formulas based on experiments, and each time a structural shape was determined, the wave-dissipating effect was often confirmed by experimenting.
ところが実験はあく捷で十数外の−の模型によるので、
手のこんた形状のもの程誤差が多ぐ、確認が困難であっ
たのである。However, the experiment was sloppy and was based on a model of less than 10 -.
The more elaborate the shape, the more errors there were, making it difficult to confirm.
又製作は難しいので施工費が高くつく等の欠点を有した
ものである。Furthermore, it is difficult to manufacture and has the disadvantage of high construction costs.
本発明は上記の様に、垂直に直立した分流壁自体が消波
な行なうと共に、分流壁両側面で波浪を分離剪断する際
に剪断エネルギーの損失を波浪に生ぜしめ、奥部に浸入
してから隣接波浪同志の衝突によって相互にエネルギー
の低下を生し、波浪全体が段階的に大きくエネルギー低
下を生じるので、護岸に対しである角度をもって撃突す
る波浪などの場合奥部の空間のつながりが消波時間過程
を多少長くとることができるので、かなり有効となって
くるわけである。As described above, in the present invention, the vertically erected diversion wall itself dissipates waves, and when the waves are separated and sheared on both sides of the diversion wall, shearing energy is lost to the waves, preventing them from penetrating deep inside. As a result, adjacent waves collide with each other, causing a mutual decrease in energy, and the energy of the entire wave decreases step by step. Therefore, in the case of waves that strike a seawall at a certain angle, the connections in the inner space are Since the wave dissipation time process can be made somewhat longer, it is quite effective.
元来外海に面する波浪の様な巨大なエネルギーを有する
流動体が瞬間的に撃突する場合は、護岸自体に施しであ
る細かい細工は、消波と云う目的では余り大した効果を
もたないもので、本発明の様に１ブロック当りが分流壁
によって大きく波浪を２分割する様な作用を期待する方
がより有効なものであるのである。When a fluid with huge energy, such as the waves facing the open ocean, strikes instantly, the fine work done on the seawall itself has no great effect for the purpose of wave dissipation. Instead, it would be more effective to expect an effect in which each block divides the waves into two by using a dividing wall as in the present invention.
又その様な単純な形状のものの方が製作も容易で、従っ
て経費も節減できる等の効果を有するものである。Moreover, such a simple shape is easier to manufacture and has the effect of reducing costs.
第１図は本発明による護岸ブロックの正面図、第２図は
ブロックの縦断面図で第１図Ａ−Ａ線に沿うて矢印の方
向に見る、第３図は水平断面図で第１図Ｂ−Ｂ線に沿う
て矢印の方向に見る、第４図は護岸ブロックを設置した
際の斜視図、第５図は一度形を示す水平断面図、第６図
は一度形のＵ字型分流壁による際の水平断面図、第１図
は分離壁の奥部を通過孔を設けた際の水平断面図。
主要部分の名称は、分流壁？、９，１１，１２゜１２′
、空間５、空間６等である。FIG. 1 is a front view of the revetment block according to the present invention, FIG. 2 is a longitudinal sectional view of the block, taken along the line A-A in FIG. Viewed along the B-B line in the direction of the arrow, Figure 4 is a perspective view of the revetment block installed, Figure 5 is a horizontal sectional view showing the once-shaped shape, and Figure 6 is the once-shaped U-shaped diversion. FIG. 1 is a horizontal sectional view when a passage hole is provided in the inner part of the separation wall. Is the main part called the diversion wall? , 9, 11, 12°12'
, space 5, space 6, etc.
Claims (1)
て、栗石を内部に填充した函体或いは土留壁板の波に面
する前面側には突出させた底床版と須坂を設け、該底床
版と該頂板の間には両側面および背面に空間をあけて直
立した断面Ｖ字形成いはＵ字形の分流壁を配設したこと
を特徴とする分流合流式消波護岸ブロック。1. In seawall blocks that are joined together to dissipate waves, a protruding bottom slab and a slope are provided on the front side facing the waves of a box or earth retaining wall plate filled with chestnut stone, and the bottom slab and A diverging/merging type wave-dissipating revetment block characterized in that a dividing wall having a V-shaped cross section or a U-shaped cross section is provided between the top plates with spaces left on both sides and the back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11440772A JPS5857566B2 (en) | 1972-11-15 | 1972-11-15 | Dividing and merging type wave-dissipating revetment block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11440772A JPS5857566B2 (en) | 1972-11-15 | 1972-11-15 | Dividing and merging type wave-dissipating revetment block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58508A JPS58508A (en) | 1983-01-05 |
| JPS5857566B2 true JPS5857566B2 (en) | 1983-12-21 |
Family
ID=14636896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11440772A Expired JPS5857566B2 (en) | 1972-11-15 | 1972-11-15 | Dividing and merging type wave-dissipating revetment block |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5857566B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4888609A (en) * | 1985-01-17 | 1989-12-19 | Minolta Camera Kabushiki Kaisha | Automatic focus adjusting apparatus |
| CA1251650A (en) * | 1986-05-09 | 1989-03-28 | Canadian Patents And Development Limited/Societe Canadienne Des Brevets Et D'exploitation Limitee | Stability optimized perforated breakwaters |
| US4910548A (en) * | 1986-05-16 | 1990-03-20 | Minolta Camera Kabushiki Kaisha | Camera with a multi-zone focus detecting device |
| US5168299A (en) * | 1986-05-16 | 1992-12-01 | Minolta Camera Co., Ltd. | Camera with a multi-zone focus detecting device |
| JPS63246730A (en) * | 1986-05-16 | 1988-10-13 | Minolta Camera Co Ltd | Focus detector |
| US5218395A (en) * | 1986-05-16 | 1993-06-08 | Minolta Camera Kabushiki Kaisha | Camera with a multi-zone focus detecting device |
| DE3713962A1 (en) * | 1987-04-25 | 1988-11-10 | Henkel Kgaa | LAUNDRY TREATMENT AGENTS FOR OIL AND FAT SOILS |
| BE1004982A5 (en) * | 1991-06-20 | 1993-03-09 | Frankignoul Pieux Armes | Process for constructing a dam or dyke structure and structure obtainedusing this process |
-
1972
- 1972-11-15 JP JP11440772A patent/JPS5857566B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58508A (en) | 1983-01-05 |
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