JPH0833013B2 - Installation direction control device for underwater deposits - Google Patents
Installation direction control device for underwater depositsInfo
- Publication number
- JPH0833013B2 JPH0833013B2 JP62141497A JP14149787A JPH0833013B2 JP H0833013 B2 JPH0833013 B2 JP H0833013B2 JP 62141497 A JP62141497 A JP 62141497A JP 14149787 A JP14149787 A JP 14149787A JP H0833013 B2 JPH0833013 B2 JP H0833013B2
- Authority
- JP
- Japan
- Prior art keywords
- direction control
- deposit
- suspension frame
- control device
- installation direction
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Artificial Fish Reefs (AREA)
- Farming Of Fish And Shellfish (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、ケーソンや大型人工魚礁等の海中沈設物を
吊り下げて設置する際にその向きをコントロールするた
めの海中沈設物の設置方向制御装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to installation direction control of an undersea deposit for controlling the direction when suspending and installing an undersea deposit such as a caisson or a large artificial fish reef. It relates to the device.
（従来の技術） 従来、捨石、ブロック、人工魚礁などの海底構造物の
沈設工事においては、一般にトランシット、電波測距儀
などによって起重機船の位置を決定して沈設し、海底で
の沈設物の位置は作業終了後に音響探査によって確認す
る方法がとられている。(Prior art) Conventionally, in the submerged construction of rubble, blocks, artificial fish reefs, etc., generally, the position of the hoist ship is determined by a transit, radio rangefinder, etc. The position is confirmed by acoustic survey after the work is completed.
（発明が解決しようとする問題点） このような従来の方法では、とくに大水深海域の場
合、潮流の影響を受けて沈設物が回転したり振動したり
しながら移動するために、定められた位置に据付けるこ
とが困難な問題があった。(Problems to be Solved by the Invention) In such a conventional method, in particular in the case of a deep water area, it is determined that the deposit moves under the influence of tidal current while rotating or vibrating. There was a problem that it was difficult to install in position.
本発明の目的は、潮流があっても沈設物を所定の方向
に向け、回転や振動のない安定した状態で吊り下げて据
付けることができる海中沈設物の設置方向制御装置を提
供することにある。An object of the present invention is to provide an installation direction control device for an underwater deposit that can be installed by suspending and installing the deposit in a predetermined direction even in the presence of a tidal current in a stable state without rotation or vibration. is there.
（問題点を解決するための手段） 上述の問題点を解決するため、本発明は海中沈設物を
下部に吊り下げる吊り枠を備え、該吊り枠には縦向きの
方向制御板が海中の流れに対して板面が対向するように
その重心を中心として角度調節自在に支持させ、吊り下
げられた沈設物の向きを制御させるようにしたものであ
る。(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention includes a suspension frame for suspending a submerged deposit at a lower portion, and the suspension frame has a vertically oriented direction control plate for the flow in the sea. On the other hand, the plate surfaces are supported so that their angles can be adjusted centering on the center of gravity so that the plate surfaces face each other, and the direction of the suspended deposit is controlled.
（作用） この発明における方向制御板は、その重心で海中の流
れの中に吊り下げた場合、該重心を中心として両側の板
に働く抗力が同じであるので、板面が流れに対向して安
定しようとする力を利用して、該方向制御板と吊り枠と
の相対的に向きを定めて、海中沈設物の向きを制御させ
るものである。(Operation) When the direction control plate according to the present invention is suspended in the flow in the sea at its center of gravity, the drag force acting on the plates on both sides with the center of gravity as the center is the same, so the plate surface faces the flow. By utilizing the force to stabilize, the direction control plate and the suspension frame are relatively oriented to control the orientation of the underwater deposit.
（実施例） 以下本発明の実施例を図面を参照して詳細に説明す
る。第１図〜第３図に示すように本実施例の海中沈設物
の設置方向制御装置１は方形状に枠組された吊り枠２を
有し、該吊り枠２の上面の四隅には吊り用のワイヤー３
の下端が取付けられている。これらワイヤー３にクレー
ンの吊り用フック４を掛けて吊り下げ支持されるように
なっている。また、吊り枠２の下面には海中沈設物５を
吊り下げる沈設物吊りワイヤー６の上端が取付けられて
いる。吊り枠２内の中央には四角形の方向制御板７が縦
向きでその重心を中心として角度調節自在に支持されて
いる。吊り枠２の上面には、該吊り枠２の向きには対し
て方向制御板７の向きを±90゜の範囲で相対的に調節す
る油圧駆動の回転手段８が設けられている。吊り枠２の
長手方向の両側には該吊り枠２の方位を検出する方位計
９が取付けられ、また吊り枠２の中央には流向流速計10
が取付けられ、船上でリアルタイムで吊り枠２の方位
と、潮流の流向流速が検出できるようになっている。(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 to 3, the installation direction control device 1 for depositing a submerged deposit according to the present embodiment has a hanging frame 2 framed in a rectangular shape, and the hanging frame 2 has four hanging corners on the upper surface thereof. Wire 3
The lower end of is attached. A hook 4 for hanging a crane is hung on these wires 3 so as to be suspended and supported. Further, an upper end of a sediment suspending wire 6 for suspending the undersea sediment 5 is attached to the lower surface of the suspension frame 2. At the center of the suspension frame 2, a rectangular direction control plate 7 is vertically oriented and is supported so that its angle can be adjusted around its center of gravity. On the upper surface of the hanging frame 2, there is provided hydraulically driven rotating means 8 for relatively adjusting the direction of the direction control plate 7 in the range of ± 90 ° with respect to the direction of the hanging frame 2. A compass 9 for detecting the azimuth of the suspension frame 2 is attached to both sides of the suspension frame 2 in the longitudinal direction, and a flow velocity meter 10 is provided at the center of the suspension frame 2.
Is attached, and the direction of the suspension frame 2 and the flow velocity of the tidal current can be detected in real time on the ship.
しかして、本発明では、船上で吊り枠２の方向と潮流
の流向Ａと流速を検出し、その流向Ａに従って、方向制
御板７の向きを回転手段８で回転することにより、吊り
枠２を介して海中沈設物５の角度を任意の方向に制御
し、海中沈設物５を設置方線Ｂに沿って設置する。Therefore, in the present invention, the direction of the suspension frame 2 and the flow direction A of the tidal current and the flow velocity are detected on the ship, and the direction of the direction control plate 7 is rotated by the rotating means 8 in accordance with the flow direction A, whereby the suspension frame 2 is moved. The angle of the submerged deposit 5 is controlled in an arbitrary direction through the submersible deposit 5 and the submerged deposit 5 is installed along the installation line B.
方向制御板７の方向制御効果を調べるために、方向制
御板の面積、流速及び懸垂する海中沈設物５の水中重量
を変化させて実験を行った。その結果を表１に示す。In order to investigate the direction control effect of the direction control plate 7, an experiment was performed by changing the area of the direction control plate, the flow velocity, and the underwater weight of the suspended submerged deposit 5. Table 1 shows the results.
この表１に示したように、方向制御効果を発揮させる
ためには、方向制御板７の面積は海中沈設物５の投影面
積（物体を流れの方向に投影した面積）の1.5倍以上、
及びその高さは海中沈設物５の高さ程度必要であること
がわかった。この実験は、フルード則換算で水深100m、
底層流速28cm/s以上の海域に、高さ10m、幅10m、奥行10
m、水中重量が96〜225ton程度の箱型をした海中沈設物
５を吊り降した場合を想定したもので、海中沈設物５の
設置方向を制御するためには、高さ10m、幅15m程度の方
向制御板７を設けた吊り枠２が必要であることを意味し
ている。 As shown in Table 1, in order to exert the direction control effect, the area of the direction control plate 7 is 1.5 times or more of the projected area of the underwater deposit 5 (the area in which the object is projected in the flow direction),
It was found that the height and its height are about the height of the underwater deposit 5. This experiment is based on the Froude law
10m in height, 10m in width, 10 in depth in the sea area with a bottom velocity of 28cm / s or more
Assuming a case where the box-shaped underwater deposit 5 with a weight of 96 to 225 tons is suspended, in order to control the installation direction of the underwater deposit 5, height 10m, width 15m This means that the suspension frame 2 provided with the direction control plate 7 is required.
（発明の効果） 以上説明したように本発明に係る海中沈設物の設置方
向制御装置は、海中沈設物を下部に吊り下げる吊り枠を
備え、該吊り枠には縦向きの方向制御板が海中の流れに
対して板面が対向するようにその重心を中心として角度
調節自在に支持された構造としたので、自然エネルギー
である流れの力を利用して海中沈設物の設置方向を制御
することができる。また、本発明によれば、吊り枠の規
模を適切に設定して製作することにより、多種多様の海
中沈設物の沈設工事に対して適用可能である。(Effects of the Invention) As described above, the installation direction control device for a submerged deposit according to the present invention includes a suspension frame for suspending a submerged deposit at a lower portion, and the suspension frame has a vertically oriented direction control plate. Since the structure is supported so that the plate surface faces the flow of the center of gravity with its center of gravity as the center, it is possible to control the installation direction of submerged deposits using the flow force that is natural energy. You can Further, according to the present invention, by appropriately setting the scale of the suspension frame and manufacturing the suspension frame, the suspension frame can be applied to the construction work of a wide variety of underwater sediments.
第１図〜第３図は本発明に係る海中沈設物の設置方向制
御装置の一実施例を示したもので、第１図は平面図、第
２図は正面図、第３図は側面図、第４図及び第５図は同
装置を用いた海中沈設物の沈設過程を示す斜視図及び平
面図である。 １……海中沈設物の設置方向制御装置、２……吊り枠、
３……吊り用のワイヤー、４……フック、５……海中沈
設物、６……沈設物吊りワイヤー、７……方向制御板、
８……回転手段。1 to 3 show an embodiment of a device for controlling the installation direction of a submerged deposit according to the present invention. FIG. 1 is a plan view, FIG. 2 is a front view, and FIG. 3 is a side view. , FIG. 4 and FIG. 5 are a perspective view and a plan view showing a submerging process of a submarine deposit using the same apparatus. 1 ... Installation direction control device for underwater deposits, 2 ... Suspension frame,
3 ... Hanging wire, 4 ... Hook, 5 ... Underwater deposit, 6 ... Deposit suspension wire, 7 ... Direction control plate,
8 ... Rotation means.
Claims (1)
え、該吊り枠には縦向きの方向制御板が海中の流れに対
して板面が対向するようにその重心を中心として角度調
節自在に支持されてなる海中沈設物の設置方向制御装
置。1. A suspension frame for suspending a submerged deposit in a lower portion, wherein a vertical direction control plate adjusts an angle around a center of gravity of the suspension frame so that the plate surface faces a flow in the sea. An installation direction control device for undersea deposits that is freely supported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62141497A JPH0833013B2 (en) | 1987-06-08 | 1987-06-08 | Installation direction control device for underwater deposits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62141497A JPH0833013B2 (en) | 1987-06-08 | 1987-06-08 | Installation direction control device for underwater deposits |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63308116A JPS63308116A (en) | 1988-12-15 |
| JPH0833013B2 true JPH0833013B2 (en) | 1996-03-29 |
Family
ID=15293313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62141497A Expired - Fee Related JPH0833013B2 (en) | 1987-06-08 | 1987-06-08 | Installation direction control device for underwater deposits |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0833013B2 (en) |
-
1987
- 1987-06-08 JP JP62141497A patent/JPH0833013B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63308116A (en) | 1988-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |