JPH0469527B2 - - Google Patents
Info
- Publication number
- JPH0469527B2 JPH0469527B2 JP6847487A JP6847487A JPH0469527B2 JP H0469527 B2 JPH0469527 B2 JP H0469527B2 JP 6847487 A JP6847487 A JP 6847487A JP 6847487 A JP6847487 A JP 6847487A JP H0469527 B2 JPH0469527 B2 JP H0469527B2
- Authority
- JP
- Japan
- Prior art keywords
- wave
- dissipating
- embankment body
- bay
- block
- 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
- 238000009415 formwork Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 230000000979 retarding effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
Landscapes
- Revetment (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は消波構造体の製造方法に関する。[Detailed description of the invention] Industrial applications The present invention relates to a method for manufacturing a wave-dissipating structure.
従来の技術
従来の消波構造体として、たとえば特願昭61−
214917号に開示されるように、湾外側から湾内側
に向かう横方向に配置されるとともに、複数積み
上げられて壁体を構築可能な柱状のブロツクに、
湾外側から湾内側に向かう１本の管体を埋設して
貫通孔を形成し、この貫通孔が、消波用の小径部
と大径部とを有するようにしたものがある。Conventional technology As a conventional wave-dissipating structure, for example,
As disclosed in No. 214917, columnar blocks are arranged in a horizontal direction from the outside of the bay to the inside of the bay, and can be stacked in multiples to construct a wall.
There is one in which a through hole is formed by embedding a single tube extending from the outside of the bay to the inside of the bay, and this through hole has a small diameter part and a large diameter part for wave dissipation.
このような消波構造体を上下左右に複数積み上
げることにより、防波堤などの堤体が構築され
る。 An embankment body such as a breakwater is constructed by stacking a plurality of such wave-dissipating structures vertically and horizontally.
発明が解決しようとする問題点
しかしながら、このような従来の消波構造体で
は、各ブロツクは単一の貫通孔しか有していない
ため、所定の堤体を構築するためにはかなりの数
のブロツクを積み上げねばならず、構築に工数を
要するうえに、堤体の分割数が多くなつてその強
度が低下する傾向にあるという問題点がある。Problems to be Solved by the Invention However, in such conventional wave-dissipating structures, each block has only a single through hole, so it takes a considerable number of holes to construct a given embankment. There are problems in that the blocks must be piled up, which requires a lot of man-hours to construct, and the strength of the embankment tends to decrease as the number of divisions increases.
そこで本発明はこのような問題点を解決し、堤
体を容易に構築でき、しかも構築された堤体の強
度を十分なものとすることができる消波構造体を
得るための製造方法を提供することを目的とす
る。 Therefore, the present invention solves these problems and provides a manufacturing method for obtaining a wave-dissipating structure that allows easy construction of the embankment body and also allows the constructed embankment body to have sufficient strength. The purpose is to
問題点を解決するための手段
上記問題点を解決するため本発明は、型枠の中
に管支持体を配置し、この管支持体により、両端
が開口する複数の消波管を支持するとともに、こ
の消波管の両端を前記型枠の一端内面および他端
内面にそれぞれ接触させ、その後型枠の中にコン
クリートを打設して、前記消波管を埋設し、かつ
この消波管の両端を端面において開口させたブロ
ツクを成形するものである。Means for Solving the Problems In order to solve the above problems, the present invention disposes a tube support in a formwork, supports a plurality of wave breakers whose both ends are open, and , both ends of the wave-dissipating pipe are brought into contact with the inner surface of one end and the inner surface of the other end of the formwork, and then concrete is poured into the formwork to bury the wave-dissipating pipe; A block is formed with both ends open at the end face.
作 用
このようにすると、複数の消波管を埋設したブ
ロツクが得られるため、複数のブロツクを上下左
右に積み上げることにより、多数の消波管を備え
た堤体が構築される。この堤体は、消波管の数に
比べて堤体の分割数が少ないため、その強度が十
分なものとなる。Function By doing this, a block in which a plurality of wave-dissipating pipes are buried can be obtained, and by stacking a plurality of blocks vertically and horizontally, an embankment body equipped with a large number of wave-dissipating pipes can be constructed. This embankment body has sufficient strength because the number of divisions of the embankment body is smaller than the number of wave dissipating pipes.
実施例
第２図〜第３図において、１は堤体であり、海
底２に基盤３を配置した後に、この基盤３の上に
複数の消波構造体４を上下左右に積み上げること
により構築されている。Embodiment In FIGS. 2 and 3, 1 is an embankment body, which is constructed by placing a foundation 3 on the seabed 2 and then stacking a plurality of wave-dissipating structures 4 on top of this foundation 3 vertically and horizontally. ing.
消波構造体４は、コンクリート製のブロツク５
の中に複数の消波管６が埋設されたものであり、
この消波管６は、その軸心７が、堤体１における
湾外側８から湾内側９に向けて上り勾配をなすよ
うに、傾斜して設けられている。 The wave dissipating structure 4 is a concrete block 5.
A plurality of wave-dissipating tubes 6 are buried inside.
The wave dissipating pipe 6 is provided so that its axis 7 slopes upward from the outer side 8 of the bay to the inner side 9 of the embankment body 1 .
消波管６は鋳鉄管やPS管にて構成され、ブロ
ツク５の湾外側端面１０で開口するベルマウス状
の吸込口１１と、その湾内側端面１２で開口する
ベルマウス状の吐出口１３とを有した貫通孔１４
を形成している。吸込口１１よりも湾内側におけ
る消波管６の部分には、吸込口１１よりも小径の
絞り部１５が、一定長さにわたつて形成されてい
る。また絞り部１５よりも湾内側における消波管
６の部分には、この絞り部１５よりも大径の遊水
部１６が形成されている。絞り部１５と遊水部１
６とは接続部１７を介して連続されており、この
接続部１７は、絞り部１５から遊水部１６に向け
て徐々に径が大きくなるようにされている。遊水
部１６よりも湾内側における消波管６の部分に
は、湾外側と同様の第２の接続部１８、および吐
出口１３に連続する第２の絞り部１９が形成され
ている。 The wave dissipating pipe 6 is made of a cast iron pipe or a PS pipe, and has a bellmouth-shaped suction port 11 that opens at the outer end face 10 of the block 5, and a bellmouth-shaped discharge port 13 that opens at the inner end face 12 of the block 5. Through hole 14 having
is formed. A constricted portion 15 having a smaller diameter than the suction port 11 is formed over a certain length in a portion of the wave dissipating tube 6 on the inner side of the bay from the suction port 11 . Further, in a portion of the wave-dissipating tube 6 on the inner side of the bay than the constricted portion 15, a retarding portion 16 having a larger diameter than the constricted portion 15 is formed. Squeezing part 15 and retarding part 1
6 through a connecting portion 17, and this connecting portion 17 has a diameter that gradually increases from the constriction portion 15 toward the water retarding portion 16. In a portion of the wave dissipating tube 6 on the inner side of the bay than the water retarding portion 16, a second connecting portion 18 similar to that on the outside of the bay and a second constriction portion 19 continuous to the discharge port 13 are formed.
次に消波構造体４の製造方法について説明す
る。まず、工場において消波管６を製造し、この
消波管６を堤体１の施工現場へ運搬する。施工現
場では、第１図に示すように型枠２０を組立て、
この型枠２０の中に管支持体としての輪木２１を
設置して、この輪木２１により複数の消波管６を
支持する。このとき、第２図に示すように消波管
６を傾斜させ、かつ消波管６の吸込口１１および
吐出口１３は、型枠２０の内面に接触させてお
く。また、消波管６は、ブロツク５の端面におけ
る開口率が適宜のものとなるように、互いの間隔
を調節する。さらに、図示のように消波管６を上
下に複数段に配置する。 Next, a method for manufacturing the wave-dissipating structure 4 will be explained. First, the wave-dissipating pipe 6 is manufactured in a factory, and the wave-dissipating pipe 6 is transported to the construction site of the embankment body 1. At the construction site, formwork 20 is assembled as shown in Figure 1,
A ring 21 as a tube support is installed in the formwork 20, and the plurality of wave-dissipating tubes 6 are supported by the ring 21. At this time, the wave-dissipating tube 6 is tilted as shown in FIG. 2, and the suction port 11 and discharge port 13 of the wave-dissipating tube 6 are brought into contact with the inner surface of the formwork 20. Further, the distance between the wave absorbers 6 is adjusted so that the aperture ratio at the end face of the block 5 is appropriate. Further, as shown in the figure, the wave breakers 6 are arranged in a plurality of stages vertically.
所定数の消波管６が所定位置に設置されたな
ら、型枠２０の中に生コンクリートを流し込み、
これを硬化させてブロツク５を得る。その後、型
枠２０を取外せば、消波構造体４が完成する。 Once a predetermined number of wave dissipating pipes 6 have been installed at predetermined positions, ready-mixed concrete is poured into the formwork 20,
Block 5 is obtained by curing this. Thereafter, by removing the formwork 20, the wave-dissipating structure 4 is completed.
このように消波構造体４を堤体１の構築現場で
製造するため、堤体１の構造に応じた任意の寸法
の消波構造体４を製造できる。また、工場から現
場までは消波管６のみを運搬するだけでよいた
め、運搬費を節減できる。堤体１を構築する際に
は、消波管６の数に比べて少ない数の消波構造体
４を積み上げるだけでよいため、容易に作業でき
る。また、消波管６の数に比べて堤体１の分割数
を少なくできるため、その強度を十分なものとす
ることができる。 Since the wave-dissipating structure 4 is manufactured at the site where the embankment body 1 is constructed in this way, the wave-dissipating structure 4 can be manufactured with any size depending on the structure of the embankment body 1. Further, since it is only necessary to transport the wave dissipating tube 6 from the factory to the site, transportation costs can be reduced. When constructing the embankment body 1, it is only necessary to stack a smaller number of wave-dissipating structures 4 than the number of wave-dissipating pipes 6, so the work can be easily performed. Moreover, since the number of divisions of the embankment body 1 can be reduced compared to the number of wave dissipating pipes 6, its strength can be made sufficient.
第２図に示すように、堤体１に向けて湾外側８
から波２２が進行してきた場合に、この波２２の
一部はブロツク５の湾外側端面１０に衝突し、こ
の衝突によりエネルギを吸収されて消波される。
波２２の残部は貫通孔１４に入り、吸込口１１を
経て絞り部１５へ導かれる。絞り部１５では、ベ
ルマウス状の吸込口１１に比べて通路断面積が減
少するため、ここを通過する際の損失によりエネ
ルギが吸収されて消波される。また、波２２が絞
り部１５から遊水部１６に向けて進行する際に
は、通路断面積が増大することにより、この波２
２の保有する流体エネルギが吸収されて消波され
る。さらに、第２の絞り部１９を通過する際にも
消波が行われ、最後に吐出口１３から湾内側９へ
進行する際にも通路断面積が増大することにより
消波が行われて、ここでは波２２はほとんどエネ
ルギを保有しない状態となる。また波２２は、貫
通孔１４を通過する際にその内面に衝突すること
によつても、エネルギを吸収されて消波される。 As shown in Figure 2, towards the embankment body 1,
When a wave 22 advances from the block 5, a part of the wave 22 collides with the outer end face 10 of the block 5, and energy is absorbed by this collision and the wave is dissipated.
The remainder of the wave 22 enters the through hole 14 and is led to the constriction part 15 via the suction port 11. Since the passage cross-sectional area of the constriction part 15 is smaller than that of the bellmouth-shaped suction port 11, energy is absorbed and dissipated due to loss when passing through the constriction part 15. Furthermore, when the wave 22 advances from the constriction part 15 toward the retarding part 16, the passage cross-sectional area increases, so that the wave 22
The fluid energy possessed by 2 is absorbed and dissipated. Furthermore, the waves are dissipated when passing through the second constriction part 19, and finally when they proceed from the discharge port 13 to the inside of the bay 9, the waves are dissipated by increasing the cross-sectional area of the passage. At this point, the wave 22 has almost no energy. The waves 22 also absorb energy and are dissipated by colliding with the inner surface of the through hole 14 when passing through it.
このとき、第２図に示すように消波管６は湾外
側８から湾内側６に向けて上り勾配をなすように
傾斜されているため、水平方向に進行してきた波
２２の分力が、消波管６の内面に対し鉛直方向の
下向きに作用する。このため、波２２による消波
構造体４の浮上りを確実に防止できる。 At this time, as shown in FIG. 2, the wave-dissipating tube 6 is inclined upward from the outer side 8 of the bay to the inner side 6 of the bay, so the component force of the wave 22 traveling in the horizontal direction is It acts vertically downward on the inner surface of the wave-dissipating tube 6. Therefore, floating of the wave-dissipating structure 4 due to waves 22 can be reliably prevented.
発明の効果
以上述べたように本発明によると、複数の消波
構造体を積み上げて堤体を構築するに際し、各消
波構造体ごとに複数の消波管を有しているため、
消波構造体が比較的大形になり、このため堤体の
分割数が減少してその強度を向上させることがで
きるのみならず、堤体の構築工数を低減させるこ
とができる。Effects of the Invention As described above, according to the present invention, when constructing an embankment by stacking a plurality of wave-dissipating structures, each wave-dissipating structure has a plurality of wave-dissipating pipes.
The wave-dissipating structure becomes relatively large, which not only reduces the number of divisions of the embankment body and improves its strength, but also reduces the number of man-hours required to construct the embankment body.
第１図は本発明の一実施例にもとづく消波構造
体の製造方法の説明図、第２図は第１図に示す方
法で製造された消波構造体を用いて構築された堤
体の断面図、第３図は第２図に示す堤体の側面図
である。
５…ブロツク、６…消波管、２０…型枠、２１
…輪木（管支持体）。
FIG. 1 is an explanatory diagram of a method for manufacturing a wave-dissipating structure based on an embodiment of the present invention, and FIG. 2 is an illustration of an embankment body constructed using the wave-dissipating structure manufactured by the method shown in FIG. The sectional view and FIG. 3 are side views of the embankment body shown in FIG. 2. 5... Block, 6... Wave absorber, 20... Formwork, 21
...ringwood (pipe support).
Claims (1)
により、両端が開口する複数の消波管を支持する
とともに、この消波管の両端を前記型枠の一端内
面および他端内面にそれぞれ接触させ、その後型
枠の中にコンクリートを打設して、前記消波管を
埋設し、かつこの消波管の両端を端面において開
口させたブロツクを成形することを特徴とする消
波構造体の製造方法。1. A tube support is arranged in a form, and the tube support supports a plurality of wave breakers with both ends open, and both ends of the wave break tubes are connected to the inner surface of one end and the inner surface of the other end of the form. , and then pouring concrete into a formwork to form a block in which the wave-dissipating pipe is buried and both ends of the wave-dissipating pipe are opened at the end faces. Method of manufacturing the structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6847487A JPS63237861A (en) | 1987-03-23 | 1987-03-23 | Manufacture of wave breaking block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6847487A JPS63237861A (en) | 1987-03-23 | 1987-03-23 | Manufacture of wave breaking block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63237861A JPS63237861A (en) | 1988-10-04 |
| JPH0469527B2 true JPH0469527B2 (en) | 1992-11-06 |
Family
ID=13374719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6847487A Granted JPS63237861A (en) | 1987-03-23 | 1987-03-23 | Manufacture of wave breaking block |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63237861A (en) |
-
1987
- 1987-03-23 JP JP6847487A patent/JPS63237861A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63237861A (en) | 1988-10-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |