JPS63165606A - Marine structure maintaining apparatus - Google Patents
Marine structure maintaining apparatusInfo
- Publication number
- JPS63165606A JPS63165606A JP30880686A JP30880686A JPS63165606A JP S63165606 A JPS63165606 A JP S63165606A JP 30880686 A JP30880686 A JP 30880686A JP 30880686 A JP30880686 A JP 30880686A JP S63165606 A JPS63165606 A JP S63165606A
- Authority
- JP
- Japan
- Prior art keywords
- working
- marine structure
- cylinder
- catcher
- cylinder part
- 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.)
- Granted
Links
- 238000012856 packing Methods 0.000 claims abstract description 25
- 238000012423 maintenance Methods 0.000 claims abstract description 15
- 239000013535 sea water Substances 0.000 abstract description 11
- 239000003566 sealing material Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、海中に立設されている脚柱のような海洋構造
物の保守装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a maintenance device for a marine structure such as a pedestal erected in the sea.
（従来の技術）
海底から直立されている脚柱の保守装置につぃて説明す
ると、第２図に示すように海底から直立され上部で構造
物（ｂｌを支承している脚柱（ａｌの周囲に、作業空間
（ｄ）を形成するように２つ割れの円筒部材（ｃ）（Ｑ
ｌを配置して、円筒部材（ｃｌ（ｃｌのリプ（Ｃ１）部
にシール材などを施し複数のボルト（θ）（ｅ）で結合
して作業用円筒体（ｃ、ｃ）とし、作業用円筒体（Ｃ，
Ｃ）の底部（Ｃ２）に設けたエアパツキン（ｆ）を膨張
させて水密に配設して、作業用円筒体（ｃ、ｃ）内の海
水を排出して作業空間（ａ）を形成し、作業空間（ａｌ
内に作業員が入り脚柱（ａｌの腐蝕などの状態を定期的
に検査し、補修などを行うことが考えられている。(Prior Art) To explain the maintenance equipment for the pillars that stand upright from the seabed, as shown in Figure 2, the maintenance equipment for the pillars (al A cylindrical member (c) (Q
Place the cylindrical member (cl) with a sealing material etc. on the lip (C1) part of cl and connect it with multiple bolts (θ) (e) to form a working cylindrical body (c, c). Cylindrical body (C,
The air packing (f) provided at the bottom (C2) of C) is inflated and arranged watertight to discharge seawater in the working cylinder (c, c) to form a working space (a); Work space (al
The plan is for workers to go inside and periodically inspect the condition of the pillars (aluminum, etc.) for corrosion, and make repairs.
（発明が解決しようとする問題点）
従来の前記海洋構造物保守装置は、海洋構造物（脚柱）
の周囲に１本の作業用円筒体を組立てる構造であるため
、海面下深くまで達するように作業用円筒体を長尺にす
ると、海面下の組立作業に困難を来し多量の海水排出が
必要になるとともに、エアパツキンの水密性を得るため
に海面下深く潜水して貝類などの付着物除去作業が必要
となり、さらに作業用円筒体の配置質えごとに前記付着
物除去とともに多量の海水排出が必要になって、作業能
率が悪く作業用円筒体の長尺化には自ら限界があり、海
洋構造物の深部の保守作業ができないなどの問題点があ
る。(Problems to be Solved by the Invention) The conventional marine structure maintenance device
Since the construction is such that a single working cylinder is assembled around the sea surface, if the working cylinder is made long enough to reach deep below the sea surface, it will be difficult to assemble the work under the sea surface, and a large amount of seawater will have to be discharged. Along with this, in order to make the air packing watertight, it is necessary to dive deep below the sea surface to remove deposits such as shellfish, and in addition to removing the deposits, a large amount of seawater is discharged depending on the arrangement of the working cylindrical body. However, there are problems such as poor work efficiency and a limit to the length of the working cylindrical body, making it impossible to perform deep maintenance work on offshore structures.
（問題点の解決手段）
本発明は、前記のような問題点に対処するために開発さ
れた海洋構造物保守装置であって、海中に立設されてい
る海洋構造物の周囲に作業空間を形成して囲み昇降可能
に配設さ」する作業用筒部と、該作業用筒部にシールリ
ングを介して下側へ伸縮可能に嵌装され伸縮操作機構を
介して延設された伸縮筒部を有し、前記作業用筒部と前
記伸縮筒部の各底板に前記海洋構造物との間の水密用エ
アパツキンを設け、前記作業用筒部内と前記伸縮筒部内
に前記海洋構造物へ進退されろ固定用のキャッチャを設
けたことにより、海洋構造物の周囲への配設性能を向上
させて保守作業能率を高め前記のような問題点を解消し
でいる。(Means for Solving Problems) The present invention is a marine structure maintenance device developed to address the above-mentioned problems, and is a system for creating a work space around a marine structure erected in the sea. a working cylinder part which is arranged so that it can be raised and lowered; and a telescoping cylinder which is fitted in the working cylinder part so as to be extendable and retractable downward through a seal ring and extended through a telescoping operation mechanism. A watertight air packing between the working cylinder part and the telescoping cylinder part is provided on each bottom plate of the working cylinder part and the telescoping cylinder part, so that the working cylinder part and the telescoping cylinder part can be moved toward and away from the marine structure. By providing a catcher for fixing the marine structure, the installation performance around the marine structure is improved, maintenance work efficiency is increased, and the above-mentioned problems are solved.
（作 用）
海洋構造物の周囲に作業用筒部を配置して海洋構造物に
キャッチャで固定しエアパツキンを膨張させて水密にす
るとともに、作業用筒部に伸縮筒部を短縮状態で嵌装し
同様にキャッチャで固定しエアパツキンを膨張させて水
密とし、作業用筒部内および伸縮筒部内の海水を排出す
ると、作業用筒部内の海洋構造物周囲に作業空間が形成
されて保守作業が可能となり、次に、伸縮筒部のエアパ
ツキン、キャッチャおよび伸縮操作機構による下降延長
の操作と、作業用筒部のエアパツキン、キャッチャおよ
び伸縮操作機構による下降の操作により、海洋構造物の
下方周囲に作業空間が形成され、海洋構造物の海面下深
い部分まで作業空間が順次に形成されて保守作業が可能
となり、作業用筒部および伸縮筒部の両底板に設けた２
重のエアパツキンにより水密性が確保されるとともに、
作業用筒部の下降配置変更時における海水排出量が著し
く減少される。(Function) A working cylinder is placed around the offshore structure, fixed to the marine structure with a catcher, the air packing is expanded to make it watertight, and the telescopic cylinder is fitted into the working cylinder in a shortened state. Similarly, by fixing it with a catcher and inflating the air packing to make it watertight and draining the seawater inside the working cylinder and the telescopic cylinder, a working space is formed around the marine structure inside the working cylinder, making maintenance work possible. Next, a work space is created around the lower part of the marine structure by lowering and extending the air packing, catcher, and telescoping operation mechanism of the telescoping cylinder, and lowering it using the air packing, catcher, and telescoping operation mechanism of the working cylinder. A working space is sequentially formed deep below the sea surface of the marine structure, making maintenance work possible.
Heavy air packing ensures watertightness and
The amount of seawater discharged when changing the lowering arrangement of the working cylinder is significantly reduced.
（実施例）
第１図に本発明の一実施例を示し、図中（ａｌは海中に
立設されている海洋構造物（脚柱） 、（ｂｌは海洋構
造物（ａｌの上部で支承されている構造物であって、海
洋構造物（ａ）の周囲に作業空間００）を形成して囲み
昇降可能に配設される作業用筒部（１）と、作業用筒部
（１）にシールリング（１２＋を介して下側へ伸縮可能
に嵌装され伸縮操作機構（２１）を介して延設さ幻た伸
縮筒部０υを有し、作業用筒部（１）の底板（３）と伸
縮筒部０］）の底板０３）の各内腔部に海洋構造物（ａ
）との間の水密用エアパツキン（５１（１→を設け、作
業用筒５（１）内と伸縮筒部（１１）内に油圧シリンダ
（６）α６）で海洋構造物（ａｌへ進退される固定用キ
ャッチャ（７）ａηを設けた構成になっている。(Example) Fig. 1 shows an example of the present invention. A working cylindrical part (1) that forms a working space 00 around the marine structure (a) and is arranged so as to be able to be raised and lowered; The bottom plate (3) of the working cylinder part (1) has a telescopic cylindrical part 0υ that is telescopically fitted downward via the seal ring (12+) and extends through the telescopic operation mechanism (21). The marine structure (a
) is provided with a watertight air packing (51 (1→), and a hydraulic cylinder (6) α6 inside the working cylinder 5 (1) and the telescopic cylinder part (11) is used to advance and retreat to the marine structure (al). The configuration includes a fixing catcher (7) aη.
さらに詳述すると、前記作業用筒部（１）、伸縮筒部（
Ｉυは、例えば、２つ割れ筒部材をリノ部分にてシール
材などを介しボルト、ナツトなどで連結することにより
、海洋構造物（ａｌの横断形状と同様な大径の横断面形
状に形成される。To explain in more detail, the working cylinder part (1), the telescopic cylinder part (
For example, Iυ is formed into a large-diameter cross-sectional shape similar to the cross-sectional shape of an offshore structure (al) by connecting two split cylindrical members at the lino part with bolts, nuts, etc. through a sealing material. Ru.
前記エアパツキン（５）（１５）は、底板（３１（１３
）の内腔部内に配設されリング形状をなし、作業空間０
０）内さらには海面上の構造物（１））側の圧気供給源
からエアホース（図示省略）を介し遠隔操作により膨縮
操作されて、底板（３）α３）と海洋構造物（ａｌの周
面間を水密としあるいは同周面から後退して作業用筒部
（１）、伸縮筒部α９の昇降を可能とする。The air packing (5) (15) is attached to the bottom plate (31 (13)
) is arranged in the inner cavity of the ring shape and has a working space of 0.
The bottom plate (3) α3) and the surroundings of the marine structure (al) are expanded and contracted by remote control from the pressure air supply source inside the structure (1)) on the sea surface through an air hose (not shown). The working cylinder part (1) and the telescopic cylinder part α9 can be moved up and down by making the surfaces watertight or retreating from the same peripheral surface.
前記キャッチャ（７）（１７）は、作業用筒部（１）、
伸縮筒部（１１）の内側に設けた支持部材上にそれぞれ
複数個配設さ幻、図示のように各油圧シリンダ（６）α
６）により海洋構造物（ａ１周囲の複数個所に当接し、
海洋構造物（ａ）の周囲に作業用筒部（１）、伸縮筒部
（１１）を所定配置にして固定する。The catcher (7) (17) includes a working cylinder part (1),
A plurality of hydraulic cylinders (6) α are each disposed on the support member provided inside the telescoping cylinder portion (11), as shown in the figure.
6) makes contact with marine structures (a1 at multiple locations),
A working cylinder part (1) and a telescopic cylinder part (11) are fixed in a predetermined position around the marine structure (a).
前記伸縮操作機構（２１）は、作業用筒部（１）の底板
（３）と伸縮筒部αυの底板０３）間に複数個の油圧シ
リンダを連結して配設された構成になっており、構造物
（ｂ）側あるいは作業空間＋１０’）に設けた油圧制御
機構（図示省略）で遠隔操作される。The telescopic operation mechanism (21) has a structure in which a plurality of hydraulic cylinders are connected and arranged between the bottom plate (3) of the working cylinder part (1) and the bottom plate 03 of the telescopic cylinder part αυ. , remotely controlled by a hydraulic control mechanism (not shown) provided on the structure (b) side or in the work space +10').
前記作業空間（１０）内および底板（３）と０３間の伸
縮空間（２０）内には、海面上の構造物ＣＩ））から操
作される海水排出管（２４）が延設されている。A seawater discharge pipe (24), which is operated from a structure CI)) on the sea surface, extends within the working space (10) and the telescopic space (20) between the bottom plate (3) and 03.
また、伸縮筒部（１］）の下板部（２３）の内端側にス
クレーパ（２５）を配設し、水圧または油圧モータ（２
７）などにより歯車Ｃ６１を介してスプレーバ（２５１
を駆動し、海洋構造物（ａｔ周囲の貝類などの付着物を
除去する。前記モータ（５）は適宜の遠隔制御機構（図
示省略）により操作される。In addition, a scraper (25) is arranged on the inner end side of the lower plate part (23) of the telescoping cylinder part (1), and a water pressure or hydraulic motor (2
7) etc., the spray bar (251
The motor (5) is operated by a suitable remote control mechanism (not shown).
さらに、必要に応じて作業用筒部（１）の上部には、シ
ール材を介しボルトナツト等で連結筒部Ｇυが連結され
、該連結筒部Ｇυ内にはリンク０２を介してガイドロー
ラ０■が付設されて海洋構造物（ａ）の周囲に対する配
置と昇降が円滑になっており、該連結筒部０１）は、滑
車（ロ）、ローラ（ト）で案内されたワイヤロープ６Ｑ
で吊持され構造物（ｂ）上のウィンチＯηで昇降操作さ
れ、また、前記ワイヤロープＣ３５１は、作業用筒部（
１１を直接に吊持するように配置し、かつ昇降させるこ
ともできる。Further, if necessary, a connecting cylinder part Gυ is connected to the upper part of the working cylinder part (1) with a bolt nut or the like through a sealing material, and a guide roller 0 is inserted into the connecting cylinder part Gυ via a link 02. A wire rope 6Q guided by a pulley (b) and a roller (g) is attached to the connecting cylinder part 01) to facilitate placement and elevation around the marine structure (a).
The wire rope C351 is suspended from the structure (b) and is raised and lowered by a winch Oη on the structure (b).
11 can also be arranged so as to be directly suspended and raised and lowered.
本発明の実施例は、前記のような構成になっており、作
用について説明すると、海洋構造物（ａ１周囲の海面付
近で作業用筒部（１）を適宜手段で組立てキャッチャ（
７）を進出させて固定しエアパツキン（５）を膨張させ
て水密とし、同作業用筒部（１）に伸縮筒部ａυが短縮
した状態で組立てられキャッチャαηで固定されエアパ
ツキンα９を膨張させて水密とし、適宜の手段により作
業空間αωおよび伸縮空間−内の海水を排出すると、作
業空間ＱＯ１内に入って海洋構造物（ａ）周面の付着物
の除去、検査、補修などの作業ができる。The embodiment of the present invention has the above-mentioned configuration, and its operation will be explained by assembling the working cylinder part (1) by an appropriate means near the sea surface around the marine structure (a1) and then installing the catcher (
7) is advanced and fixed, and the air packing (5) is expanded to make it watertight, and the telescopic cylinder part aυ is assembled to the working cylinder part (1) in a shortened state and fixed with the catcher αη, and the air packing α9 is expanded. After making it watertight and draining the seawater in the working space αω and the expansion/contraction space by appropriate means, you can enter the working space QO1 and perform work such as removing deposits on the surrounding surface of the marine structure (a), inspecting it, and repairing it. .
海洋構造物（＆）のさらに下側を検査する際は、エアパ
ツキンαＱのエアを抜き縮小させキャッチャ（Ｌ？）を
後退させて伸縮操作機構ｅυの油圧シリンダを伸長し、
伸縮筒部ａυを下降しキャッチャを進出させて固定しエ
アパツキンＱ５）に圧気を供給して膨張させて水密にし
たのち、エアパツキン（５）を縮小しキャッチャ（７）
を後退させて伸縮操作機構０１）の油圧シリンダを短縮
して、作業用筒部（１）を下降しキャッチャを進出させ
て固定しエアパツキンを膨張させて水密にし、海水を排
出することにより作業空間（１０）が海洋構造物（ａ）
の下側に変更され同下側の保守作業が可能となる。When inspecting the lower side of the marine structure (&), remove the air from the air packing αQ, retract the catcher (L?), and extend the hydraulic cylinder of the telescopic operation mechanism eυ.
Lower the telescopic cylinder part aυ, advance the catcher and fix it, supply pressurized air to the air packing Q5) to inflate it and make it watertight, then contract the air packing (5) and move the catcher (7).
The hydraulic cylinder of the telescopic operation mechanism 01) is moved back, the hydraulic cylinder of the telescopic operation mechanism 01) is lowered, the catcher is advanced and fixed, the air packing is expanded to make it watertight, and the seawater is discharged, thereby making the work space clearer. (10) is an offshore structure (a)
It is now possible to perform maintenance work on the lower side.
伸縮筒部Ｉの下降時に、スクレーパ（２５１を駆動して
海洋構造物（ａ）周囲の付着物などを除去でき、エア、
−ｅツキンの損傷を防止しその水密性を得られるととも
に、保守作業が容易となる。When the telescopic cylinder part I is lowered, the scraper (251) can be driven to remove deposits around the marine structure (a), and the air,
- It is possible to prevent damage to the e-skin and obtain its watertightness, and also to facilitate maintenance work.
作業用筒部（１）の上部が海面下になる場合は、連結筒
部Ｃ３１１を上方へ延設することにより作業用筒部（１
）をさらに海面下深くまで下降設置可能となり、ウィン
チ０７）から繰り出されたワイヤロープ０９により各筒
部の配置や昇降が円滑に行われ、かつ緊急時の補助装置
としての役割をなす。If the upper part of the working cylinder part (1) is below sea level, the working cylinder part (1) can be removed by extending the connecting cylinder part C311 upward.
) can be lowered and installed further below the sea surface, and the wire rope 09 let out from the winch 07) facilitates the arrangement and elevation of each cylinder, and serves as an auxiliary device in case of an emergency.
昇降操作機構は、油圧シリンダに代えて回転機、歯車等
による伸縮機構にすることも可能である。The elevating and lowering operation mechanism can also be a telescoping mechanism using a rotary machine, gears, etc. instead of a hydraulic cylinder.
前記装置の海面上への上昇は、逆操作により行われる。Raising the device above sea level is performed by reverse operation.
（発明の効果）
本発明は、前述のような構成になっており、海洋構造物
の周囲に作業用筒部を配置して海洋構造物にキャッチャ
で固定しエアパツキンで水密にするとともに、同作業用
筒部に短縮状態で伸縮筒部を短縮状態で嵌装し同様にキ
ャッチャで固定しエアパツキンで水密とし、海水を排出
することにより、作業用筒部内の作業空間で海洋構造物
の保守作業ができ、伸縮筒部のエアパツキン、キャッチ
ヤおよび下降の操作と、作業用筒部のエア、ｏツキン、
キャッチャおよび下降の操作、さらに海水排出により、
海洋構造物の海面下深い部分まで作業空間が順次に形成
され、比較的に簡単な操作により容易に海洋構造物の深
い部分まで作業空間を形成でき、海洋構造物の保守作業
を容易に高能率で遂行できる。(Effects of the Invention) The present invention has the above-mentioned configuration, in which a working cylinder is arranged around a marine structure, fixed to the marine structure with a catcher, made watertight with an air packing, and By fitting the telescopic cylinder in the shortened state into the working cylinder, fixing it with a catcher in the same way, making it watertight with air packing, and discharging seawater, maintenance work on marine structures can be carried out in the work space inside the working cylinder. It is possible to operate the air packing, catcher, and lowering of the telescopic cylinder, and to operate the air packing, catcher, and lowering of the telescopic cylinder.
With catcher and lowering operations, as well as seawater discharge,
Working spaces are sequentially formed deep below the sea surface of the offshore structure, and with relatively simple operations, working spaces can be easily formed deep below the ocean structure, making maintenance work on offshore structures easy and highly efficient. It can be carried out with
以上本発明を実施例について説明したが、勿論本発明は
このような実施例にだけ局限されるものではなく、本発
明の精神を逸脱しない範囲内で種々の設計の改変を施し
うるものである。Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design modifications can be made without departing from the spirit of the present invention. .
第１図は本発明の一実施例を示す縦断面図、第２図は従
来例を示す縦断面図、第３図は第２図のＩｔ−Ｉ部分の
断面図である。
ａ：海洋構造物 １：作業用筒部
３．１３：底板 ５，１５：エアパツキン７．１
７：キャッチャ １１：伸縮筒部１２：シールリンク
２１：伸縮操作機構復代理人 弁理士 開本重文
（１旬 外２名FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, FIG. 2 is a longitudinal sectional view showing a conventional example, and FIG. 3 is a sectional view taken along the line It-I in FIG. a: Marine structure 1: Working cylinder 3.13: Bottom plate 5, 15: Air packing 7.1
7: Catcher 11: Telescopic cylinder part 12: Seal link
21: Telescoping operation mechanism Sub-agent Patent attorney Kaihon Important Cultural Property (1st season, 2 others)
Claims (1)
成して囲み昇降可能に配設される作業用筒部と、該作業
用筒部にシールリングを介して下側へ伸縮可能に嵌装さ
れ伸縮操作機構を介して延設された伸縮筒部を有し、前
記作業用筒部と前記伸縮筒部の各底板に前記海洋構造物
との間の水密用エアパッキンを設け、前記作業用筒部内
と前記伸縮筒部内に前記海洋構造物へ進退される固定用
のキャッチャを設けたことを特徴とする海洋構造物保守
装置。A working cylindrical part that forms and encloses a working space around a marine structure erected in the sea and is arranged to be able to be raised and lowered, and a working cylindrical part that can be expanded and contracted downward through a seal ring. It has a telescopic cylindrical part that is fitted and extended via a telescopic operation mechanism, and a watertight air packing between the marine structure and the marine structure is provided on each bottom plate of the working cylindrical part and the telescopic cylindrical part, and A marine structure maintenance device characterized in that a fixing catcher that is moved forward and backward toward the marine structure is provided in the working cylinder part and the telescopic cylinder part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30880686A JPH07122244B2 (en) | 1986-12-26 | 1986-12-26 | Offshore structure maintenance equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30880686A JPH07122244B2 (en) | 1986-12-26 | 1986-12-26 | Offshore structure maintenance equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63165606A true JPS63165606A (en) | 1988-07-08 |
| JPH07122244B2 JPH07122244B2 (en) | 1995-12-25 |
Family
ID=17985535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30880686A Expired - Lifetime JPH07122244B2 (en) | 1986-12-26 | 1986-12-26 | Offshore structure maintenance equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07122244B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018003253A (en) * | 2016-06-27 | 2018-01-11 | 鹿島建設株式会社 | Device and method for suppressing adhesion of marine organism |
-
1986
- 1986-12-26 JP JP30880686A patent/JPH07122244B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018003253A (en) * | 2016-06-27 | 2018-01-11 | 鹿島建設株式会社 | Device and method for suppressing adhesion of marine organism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07122244B2 (en) | 1995-12-25 |
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