JPS6151716B2 - - Google Patents
Info
- Publication number
- JPS6151716B2 JPS6151716B2 JP56041720A JP4172081A JPS6151716B2 JP S6151716 B2 JPS6151716 B2 JP S6151716B2 JP 56041720 A JP56041720 A JP 56041720A JP 4172081 A JP4172081 A JP 4172081A JP S6151716 B2 JPS6151716 B2 JP S6151716B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- tube
- pipe body
- floating body
- concrete
- 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
- 238000007667 floating Methods 0.000 claims description 37
- 238000009434 installation Methods 0.000 claims description 23
- 230000035939 shock Effects 0.000 claims description 10
- 239000013535 sea water Substances 0.000 claims description 9
- 239000006096 absorbing agent Substances 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Revetment (AREA)
Description
【発明の詳細な説明】
本発明はコンクリート製管体の布設装置に関
し、さらに詳しくは、大口径のコンクリート製管
体を、高深度の海底まで略垂直方向に容易に布設
し得るようにしたコンクリート製管体の布設装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a concrete pipe installation device, and more specifically, the present invention relates to a concrete pipe installation device, and more specifically, a concrete pipe installation device that allows a large-diameter concrete pipe to be easily installed in a substantially vertical direction to a deep seabed. This invention relates to a tubular body installation device.
例えば海水温度差発電のように、安定した低温
の海水を大量に必要とする場合は、海水温度差発
電プラントを載置した浮体を深海上に係留し、こ
の浮体から大口径管を高深度の海底まで垂直方向
に布設して取水する必要がある。 For example, when a large amount of stable, low-temperature seawater is required, such as in seawater thermal power generation, a floating body on which a seawater thermal power generation plant is mounted is moored in deep sea, and a large diameter pipe is connected from this floating body to a deep sea. It is necessary to install it vertically to the seabed to take in water.
しかしながら、この取水管として大口径の鋼管
を使用すると、温度上昇や腐食の問題があるばか
りでなく、著しく高重量となり船台との接続その
他の問題でこれを採用することができず、またコ
ンクリート製管体を使用すると、上述した温度上
昇や腐食の問題は解消されるものの、重量の点で
鋼管同様に採用することができない。そこで上述
した各問題点を解消し得る管体として、ポリエチ
レン製管等合成樹脂管を使用する技術が提案され
ているが、現技術では製造可能な管径に制限があ
り、大型プラントの取水管として採用する場合に
は、多数の管体を束にして布設する必要があり、
コスト高になる等やはり問題があるのが現状であ
る。 However, if large-diameter steel pipes are used as the water intake pipes, not only will there be problems with temperature rise and corrosion, but they will also be extremely heavy, making it impossible to use them due to problems such as connection to the ship's platform. Although the above-mentioned problems of temperature rise and corrosion can be solved by using a pipe, it cannot be used like a steel pipe due to its weight. Therefore, technology using synthetic resin pipes such as polyethylene pipes has been proposed as a pipe body that can solve the above-mentioned problems, but the current technology has limitations on the pipe diameter that can be manufactured, and When adopted as a pipe, it is necessary to bundle a large number of pipes and install them.
At present, there are still problems such as high costs.
本発明の目的は、上述のような問題点を解消
し、大口径のコンクリート製管体を、高深度の海
底まで略垂直方向に容易に布設することができる
一方、この布設された大口径のコンクリート製管
体を浮体に殆んど荷重をかけることなく連結し得
る優れたコンクリート製管体の布設装置を提供せ
んとすることにある。 An object of the present invention is to solve the above-mentioned problems, and to easily lay a large-diameter concrete pipe in a substantially vertical direction to a deep seabed. To provide an excellent concrete pipe laying device capable of connecting a concrete pipe to a floating body without applying almost any load.
すなわち本発明は、浮体の作業台に、管体布設
用開口部を設けると共に、前記作業台上に、比重
が海水の比重とほぼ同等になるよう成型したコン
クリート製管体の荷揚兼布設用のクレーンと、こ
のコンクリート製管体を海底に向つて略垂直方向
に牽引するウインチとを配置し、さらに前記浮体
に、管体挿通孔を備えた球状体からなるユニバー
サル緩衝装置を、この管体挿通孔が前記作業台の
管体布設用開口部に一致するようクツシヨンを介
して取り付け、さらに前記ユニバーサル緩衝装置
上に管体保持装置を配置したことを特徴とするコ
ンクリート製管体の布設装置を、その要旨とする
ものである。 That is, the present invention provides an opening for laying pipes on a workbench of a floating body, and a space for unloading and laying concrete pipes formed on the workbench so that the specific gravity is almost the same as that of seawater. A crane and a winch that pulls this concrete tube toward the seabed in a substantially vertical direction are arranged, and a universal shock absorber consisting of a spherical body with a tube insertion hole is inserted into the floating body. A concrete pipe installation device, characterized in that the hole is installed via a cushion so that the hole matches the pipe installation opening of the workbench, and a pipe holding device is disposed on the universal shock absorbing device. This is the summary.
以下本発明を実施例により図面を参照しつつ詳
細に説明する。 Hereinafter, the present invention will be explained in detail by way of examples with reference to the drawings.
第１図は本発明の実施例からなるコンクリート
製管体の布設装置を示す一部切欠した正面視説明
図、第２図はコンクリート製管体の一例を示す一
部切欠した正面視説明図、第３図は管体布設後の
浮体を示す一部切欠した正面視説明図である。 FIG. 1 is a partially cutaway front view explanatory diagram showing a concrete pipe installation device according to an embodiment of the present invention, and FIG. 2 is a partially cutaway front view explanatory diagram showing an example of a concrete pipe body. FIG. 3 is a partially cutaway front view explanatory view showing the floating body after the pipe body has been installed.
本発明の実施例からなるコンクリート製管体の
布設装置は、浮体Ｆの作業台F1に、管体布設用
開口部F2を設けると共に、前記作業台F1上に、
比重が海水の比重とほぼ同等になるよう成型した
コンクリート製管体Ｅの荷揚兼布設用のクレーン
Ｔと、このコンクリート製管体Ｅを海底に向つて
略垂直方向に牽引するウインチ１０とを配置し、
さらに前記浮体Ｆに、管体挿通孔G1を備えた球
状体からなるユニバーサル緩衝装置Ｇを、この管
体挿通孔G1が前記作業台F1の管体布設用開口部
F2に一致するようクツシヨンG2を介して取り付
け、さらに前記ユニバーサル緩衝装置Ｇ上に管体
保持装置３を配置することにより構成されてい
る。 The concrete pipe installation device according to the embodiment of the present invention is provided with an opening F 2 for pipe installation on the work platform F 1 of the floating body F, and on the work platform F 1 .
A crane T for unloading and laying a concrete pipe body E formed so that its specific gravity is almost the same as that of seawater, and a winch 10 for pulling this concrete pipe body E in a substantially vertical direction towards the seabed are arranged. death,
Further, a universal shock absorber G made of a spherical body having a tube insertion hole G 1 is attached to the floating body F, and the tube insertion hole G 1 is an opening for installing the tube in the workbench F 1 .
It is constructed by attaching via a cushion G2 so as to match F2 , and further arranging the tube body holding device 3 on the universal shock absorbing device G.
さらにこの構造を具体的に説明すると、上記コ
ンクリート製管体Ｅは、本実施例において第２図
に示すように、内外二重壁構造として、この内壁
E1と外壁E2との間に空隙部E3を形成し、この空
隙部E3の浮力により本管体Ｅの比重が海水の比
重とほぼ同等になるようにしてあり、また上下端
部近くには、管体Ｅを軸線方向に連結するPC鋼
牽２の装着部E4がまた、管体Ｅの重量を保持す
るため前記管体保持装置３で保持するレセスE5
がそれぞれ配置されている。 To explain this structure more specifically, in this embodiment, as shown in FIG. 2, the concrete pipe E has a double-wall structure with an inner wall
A gap E 3 is formed between E 1 and the outer wall E 2 , and the buoyancy of this gap E 3 makes the specific gravity of the main body E almost equal to the specific gravity of seawater. Nearby, a mounting part E 4 of the PC steel tensioner 2 that connects the tube body E in the axial direction is also attached to a recess E 5 that is held by the tube body holding device 3 to retain the weight of the tube body E.
are placed respectively.
Ｔはクレーンであつて、浮体Ｆの上部に形成さ
れた作業台F1の上面に配置されており、第１図
に示すように運搬船１に積載された前記管体Ｅを
浮体Ｆの作業台F1上に吊上げ、これを作業台F1
上の所定の場所に載置する一方、管体Ｅを布設す
る際にも使用し得るようになつている。 T is a crane which is placed on the upper surface of a work platform F1 formed on the upper part of the floating body F, and is used to move the tube body E loaded on the carrier ship 1 onto the work platform of the floating body F, as shown in FIG. Lift it above F 1 and place it on workbench F 1
It can be placed at a predetermined location on the top, and can also be used when laying the tube body E.
３は管体保持装置であつて、前記作業台F1の
所定位置に設けられた管体布設用開口部F2に臨
ましめて設置されたユニバーサル緩衝装置Ｇ上に
設けられ、管体Ｅの布設作業に際し、海底側に位
置する管体Eaの上端部近くにあるレセスE5で保
持し、この管体Eaに連結する上部の管体Ebの連
結作業を容易ならしめる一方、布設終了後は連結
された管体Ecを浮体Ｆに固定し得るようになつ
ている。 Reference numeral 3 denotes a tube holding device, which is installed on the universal shock absorber G installed facing the tube installation opening F2 provided at a predetermined position of the workbench F1 , and is used to hold the tube E. During work, the pipe body Ea located on the seabed side is held in a recess E 5 near the upper end to facilitate the connection work of the upper pipe body Eb that is connected to this pipe body Ea. The pipe body Ec can be fixed to the floating body F.
Ｇはユニバーサル緩衝装置であつて、軸線に沿
つて管体挿通孔G1を設けた球状体から構成さ
れ、この管体挿通孔G1を、前記管体布設用開口
部F2と一致せしめて浮体ＦにクツシヨンG2を介
してユニバーサル作動自在に取り付けられてお
り、風波等による浮体の動揺が直接的に管体に作
用するのを緩衝し、管体の布設作業を容易化する
と共に、布設後の管体の動揺を緩和し得るように
なつている。 G is a universal shock absorber, which is composed of a spherical body with a tube insertion hole G1 provided along the axis, and this tube insertion hole G1 is aligned with the tube installation opening F2. It is attached to the floating body F via a cushion G2 so that it can be universally operated, and buffers the movement of the floating body caused by wind and waves from directly acting on the pipe body, making the work of laying the pipe body easy, and making it easier to install the pipe. It is designed to alleviate the subsequent oscillation of the tube body.
４はガイドワイヤーであつて、その一端４１
を、最下位に位置する管体Ecの下端に取り付け
られた端末金物５に固着し、他端４２は、アンカ
ー６に取り付けたリードブロツク７と、アンカー
８に取り付けたリードブロツク９を介して、浮体
Ｆの作業台F1上に設けられたウインチ１０に連
結されている。 4 is a guide wire, one end of which 4 1
is fixed to the terminal hardware 5 attached to the lower end of the tube body Ec located at the lowest position, and the other end 42 is attached via the lead block 7 attached to the anchor 6 and the lead block 9 attached to the anchor 8. , is connected to a winch 10 provided on the work platform F1 of the floating body F.
従つて管体布設作業に際し、前記クレーンＴの
管体布設用ワイヤT1をゆるめつつ前記ウインチ
１０を巻き上げることによつて連結された布設中
の管体を海底に向つて牽引することができる一
方、布設作業中あるいは布設後の連結した管体に
海底方向の牽引力を附与してその動揺を防止する
ことができる。 Therefore, during the pipe body installation work, by loosening the pipe body laying wire T1 of the crane T and hoisting up the winch 10, the connected pipe bodies being laid can be towed toward the seabed. It is possible to apply a traction force in the direction of the seabed to the connected pipe bodies during or after the installation work to prevent them from shaking.
なお図中１１は管体保護コラムで、前記浮体Ｆ
の管体布設部に取り付けられている。また１２は
テンシヨンレグで、上端は前記浮体Ｆに下端は前
記アンカー８にそれぞれ取り付けられている。さ
らに１３はフレキシブルホースで、布設後の管体
Ecに設けた取水口Ec1と、浮体Ｆに設けた取水口
F3との間に取り付けられており、管体Ecを介し
て取水された海水を浮体Ｆ内の所要箇所に供給す
るものである。 In addition, numeral 11 in the figure is a tube body protection column, which is attached to the floating body F.
It is attached to the pipe installation part. Further, reference numeral 12 denotes a tension leg, the upper end of which is attached to the floating body F, and the lower end thereof to the anchor 8. Furthermore, 13 is a flexible hose, and the pipe body after installation
Water intake Ec1 installed on Ec and water intake installed on floating body F
It is installed between the floating body F 3 and supplies the seawater taken in through the pipe body Ec to the required locations within the floating body F.
つづいて上述した装置を用いて前記管体を布設
する過程について説明する。 Next, a process of installing the tube using the above-mentioned apparatus will be explained.
まず上述した浮体Ｆを、所定の管体布設海域に
タグボート等により曳航し、これをアンカー８を
備えた各テンシヨンレグ１２によつて係留した
後、この浮体Ｆに、前述した管体Ｅを積載した運
搬船１を接舷し、浮体ＦのクレーンＴにより運搬
船上の各管体Ｅを浮体Ｆの作業台F1上に荷揚げ
する。しかる後、あるいは荷揚を行ないつつ作業
台F1上の管体Ｅのうちの一つの管体Eaを、前記
クレーンＴで吊り上げ、これを非保持状態とした
管体保持装置３を介して管体布設用開口部F2内
に、この管体Eaの連結具装着部E4が管体保持装
置３の上方に位置するよう吊り下ろした後、管体
保持装置３を作動してレセスE5にカツプルしこ
の管体Eaを保持する。つづいて次の管体Ebを作
業台F1上からクレーンＴで吊り上げ、前述した
管体Eaの上部に吊り下ろして載置し、各管体
Ea，Ebの連結具装着部E4をPC鋼牽２で連結した
後、この各管体Ea及びEbの接合部の間隙にエポ
キシコンクリート等を充填する。この連結作業が
終了した後、前記管体保持装置３を作動して、管
体保持をレセスE5から解除し、クレーンＴの管
体布設用ワイヤT1をゆるめつつ前記ウインチ１
０を巻き上げて、前記連結された布設中の各管体
を海底に向つて牽引し、前記管体Ebの連結具装
着部E4が管体保持装置３の上方に位置した所
で、クレーンＴとウインチ１０との作動を停止す
る一方、管体保持装置３を作動して、レセスE5
とカツプルさせこの管体Ebを保持する。 First, the above-mentioned floating body F was towed by a tugboat or the like to a predetermined pipe installation sea area, and after this was moored by each tension leg 12 equipped with an anchor 8, the above-mentioned pipe body E was loaded onto this floating body F. The carrier ship 1 is brought alongside, and each tube body E on the carrier ship is unloaded onto the work platform F1 of the floating body F by the crane T of the floating body F. After that, or while unloading, one of the tubes Ea on the workbench F1 is lifted up by the crane T, and the tube is held in a non-holding state via the tube holding device 3. After suspending the pipe body Ea into the installation opening F2 so that the connector attachment part E4 is positioned above the pipe body holding device 3, the pipe body holding device 3 is activated to recess E5. Hold the tube body Ea. Next, the next tube Eb is lifted from the workbench F1 using the crane T, and is lowered and placed on top of the tube Ea mentioned above.
After connecting the connector mounting parts E4 of Ea and Eb with PC steel tensioner 2, fill the gap between the joints of each tube body Ea and Eb with epoxy concrete or the like. After this connection work is completed, the pipe body holding device 3 is activated to release the pipe body holding from the recess E5 , and while loosening the pipe body laying wire T1 of the crane T, the winch 1
0 is hoisted up and each of the connected pipe bodies being laid is towed toward the seabed, and when the connector attachment part E4 of the pipe body Eb is located above the pipe body holding device 3, the crane T While stopping the operation of the winch 10 and the winch 10, the tube body holding device 3 is operated to recess E5.
Hold this tube body Eb by pulling it together.
以下上述した作業を繰返し行なつて各管体を浮
体Ｆ上において順次連結しつつこれを海底に向つ
て牽引することにより、各管体Ｅを浮体Ｆと海底
との間に連続的に布設することができる。本実施
例においては、この布設後の管体Ecに設けた取
水口Ec1と、浮体Ｆに設けた取水口F3との間にフ
レキシブルホース１３を取り付けて作業を終了す
る。 By repeating the above-mentioned operations to sequentially connect each tube body on the floating body F and towing it toward the seabed, each tube body E is continuously laid between the floating body F and the seabed. be able to. In this embodiment, the flexible hose 13 is attached between the water intake port Ec1 provided on the pipe body Ec after installation and the water intake port F3 provided on the floating body F, and the work is completed.
本発明は上述したように構成したから、比重が
海水とほぼ同等になるよう成型したコンクリート
製管体を、管体布設海域に係留した浮体まで運搬
し、この運搬された前記管体を浮体上に載置し、
しかる後、この各管体を浮体上で順次連結しつつ
これを略垂直方向に海底に向つて牽引することに
より、前記各管体を浮体と海底との間に連続的に
布設することができる。従つて、大口径、高重量
のコンクリート製管体を高深度の海底まで略垂直
方向に容易に布設することができる一方、この布
設された大口径、高重量のコンクリート製管体を
浮体に殆んど荷重をかけることなく連結すること
ができる。 Since the present invention is configured as described above, a concrete pipe molded to have a specific gravity almost equal to that of seawater is transported to a floating body moored in the sea area where the pipe is laid, and the transported pipe is placed on the floating body. Place it on the
Thereafter, each of the tubes can be successively installed between the floating body and the seabed by sequentially connecting the tubes on the floating body and towing them approximately vertically toward the seabed. . Therefore, while it is possible to easily lay a large-diameter, heavy-weight concrete pipe in a nearly vertical direction to the seabed at great depths, it is also possible to easily lay this large-diameter, heavy-weight concrete pipe on a floating body. Can be connected without applying any load.
また本発明は浮体に、球状体からなるユニバー
サル緩衝装置をクツシヨンを介して取り付けたか
ら、風波等による浮体の動揺が直接的に管体に作
用するのを緩和でき、管体の布設作業を容易化す
ることができると共に、布設後の管体の動揺を防
止することができる。 In addition, in the present invention, since a universal shock absorber made of spherical bodies is attached to the floating body via a cushion, it is possible to reduce the direct effect of the movement of the floating body due to wind waves, etc. on the pipe body, and to facilitate the installation work of the pipe body. In addition, it is possible to prevent the pipe body from shaking after installation.
第１図は本発明の実施例からなるコンクリート
製管体の布設装置を示す一部切欠した正面視説明
図、第２図はコンクリート製管体の一例を示す一
部切欠した正面視説明図、第３図は管体布設後の
浮体を示す一部切欠した正面視説明図である。
Ｅ……コンクリート製管体、Ｆ……浮体、F1
……作業台、F2……管体布設用開口部、Ｇ……
ユニバーサル緩衝装置、Ｔ……クレーン、１……
運搬船、３……管体保持装置、４……ガイドワイ
ヤー、１０……ウインチ。
FIG. 1 is a partially cutaway front view explanatory diagram showing a concrete pipe installation device according to an embodiment of the present invention, and FIG. 2 is a partially cutaway front view explanatory diagram showing an example of a concrete pipe body. FIG. 3 is a partially cutaway front view explanatory view showing the floating body after the pipe body has been installed. E... Concrete pipe body, F... Floating body, F 1
...Workbench, F 2 ...Opening for pipe installation, G...
Universal shock absorber, T... Crane, 1...
Transport vessel, 3... tube body holding device, 4... guide wire, 10... winch.
Claims (1)
と共に、前記作業台上に、比重が海水の比重とほ
ぼ同等になるよう成型したコンクリート製管体の
荷揚兼布設用のクレーンと、このコンクリート製
管体を海底に向つて略垂直方向に牽引するウイン
チとを配置し、さらに前記浮体に、管体挿通孔を
備えた球状体からなるユニバーサル緩衝装置を、
この管体挿通孔が前記作業台の管体布設用開口部
に一致するようクツシヨンを介して取り付け、さ
らに前記ユニバーサル緩衝装置上に管体保持装置
を配置したことを特徴とするコンクリート製管体
の布設装置。1. An opening for laying the pipes will be provided on the workbench of the floating body, and a crane will be installed on the workbench for unloading and laying the concrete pipes, which have been molded so that the specific gravity is approximately the same as that of seawater. A winch that pulls the concrete tube toward the seabed in a substantially vertical direction is arranged, and a universal shock absorber made of a spherical body with a tube insertion hole is installed on the floating body.
A concrete pipe body characterized in that the pipe body is attached via a cushion so that the pipe body insertion hole matches the pipe body installation opening of the workbench, and further a pipe body holding device is arranged on the universal shock absorbing device. Laying equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56041720A JPS57157880A (en) | 1981-03-24 | 1981-03-24 | Laying method and device of tubular body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56041720A JPS57157880A (en) | 1981-03-24 | 1981-03-24 | Laying method and device of tubular body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57157880A JPS57157880A (en) | 1982-09-29 |
| JPS6151716B2 true JPS6151716B2 (en) | 1986-11-10 |
Family
ID=12616253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56041720A Granted JPS57157880A (en) | 1981-03-24 | 1981-03-24 | Laying method and device of tubular body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57157880A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01156515U (en) * | 1988-04-21 | 1989-10-27 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9476411B2 (en) * | 2014-12-19 | 2016-10-25 | Lockheed Martin Corporation | Cold water pipe assembly for ocean thermal energy conversion |
-
1981
- 1981-03-24 JP JP56041720A patent/JPS57157880A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01156515U (en) * | 1988-04-21 | 1989-10-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57157880A (en) | 1982-09-29 |
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