JPH01169021A - Method and device for installing caisson - Google Patents
Method and device for installing caissonInfo
- Publication number
- JPH01169021A JPH01169021A JP32911987A JP32911987A JPH01169021A JP H01169021 A JPH01169021 A JP H01169021A JP 32911987 A JP32911987 A JP 32911987A JP 32911987 A JP32911987 A JP 32911987A JP H01169021 A JPH01169021 A JP H01169021A
- Authority
- JP
- Japan
- Prior art keywords
- caisson
- barges
- wire rope
- water
- injected
- 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
- 238000000034 method Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 239000013535 sea water Substances 0.000 claims description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group 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 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 208000003028 Stuttering Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Jib Cranes (AREA)
Abstract
Description
【発明の詳細な説明】
(イ)技術分野
本発明は、ケーソン据付場所の水深がケーソンの吃水よ
りも浅く、起重機船のような揚荷装置を備えた大型船舶
が進入不可能な場所に、浚渫を必要とすることなく大型
ケーソンを据付けることができる方法と装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (a) Technical field The present invention is directed to installing a caisson in a place where the water depth is shallower than the caisson's stuttering water, and where a large ship equipped with a lifting device such as a hoist ship cannot enter. The present invention relates to a method and apparatus capable of installing large caissons without the need for dredging.
(ロ)従来技術
上記のような水深の浅い場所への大型ケーソンの据付け
には、起重機船の使用が不可能であるため、これを解決
する方法として例えば特開昭61−186621号公報
記載の技術がある。(b) Prior art Since it is impossible to use a hoist boat to install a large caisson in a shallow water place as described above, a method to solve this problem is, for example, the method described in JP-A-61-186621. There is technology.
この方法は、ケーソン両側に突出するような複数本の長
い支持棒をケーソン上に取付け、該ケーソン両側に上端
に受金具を備えた複数の支柱を上面に立設したフロート
を配置して、上記各支持棒両端を受金具で支承し、該フ
ロート内にパラスト水を注排水操作することにより、ケ
ーソンの持上げ、移動、所定マウンドへの着底を行なう
ものである。In this method, a plurality of long support rods protruding from both sides of the caisson are installed on the caisson, and floats each having a plurality of supports with metal fittings at the upper end erected on the upper surface are arranged on both sides of the caisson. Both ends of each support rod are supported by metal fittings, and by pouring and draining pallast water into the float, the caisson is lifted, moved, and placed on the bottom of a predetermined mound.
しかしながら、この方法はケーソンも両フロートも波で
揺動しかつ潮流の影響を受ける中でフロートへの注排水
によってケーソン支持棒両端を受金具に合致させなけれ
ばならないので、その操作が非常に難しくて作業に時間
がかかるばかりでなく、支持中のケーソンが波浪で揺動
すると支持棒両端を介して偏荷重が両フロートの受金具
に衝撃力として働き、またケーソン上の吊金具も衝撃を
受けて非常に危険である。However, this method is extremely difficult to operate because both ends of the caisson support rod must be aligned with the brackets by pouring water into the float while both the caisson and both floats are rocking by the waves and are affected by tidal currents. Not only does this work take time, but when the caisson being supported swings in the waves, an uneven load acts as an impact force on the support fittings of both floats via both ends of the support rod, and the hanging fittings on the caisson are also subjected to impact. It is extremely dangerous.
(ハ)発明の開示
本発明は上述のような問題点を解決したもので、ケーソ
ン両側に配置するフロートとなる両台船をケーソンを吊
持するためのビームによって最初から連結して一体化し
た作業船を使用し、ケーソンは上記ビームから垂設した
ワイヤロープによって吊持するようにしたものである。(c) Disclosure of the Invention The present invention solves the above-mentioned problems by connecting both barges, which serve as floats placed on both sides of the caisson, from the beginning and integrating them using a beam for suspending the caisson. A work boat is used, and the caissons are suspended by wire ropes hanging from the beam.
以下、本発明の一実施例を添付図を参照して説明する。Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.
(ニ)実施例
1はケーソン2の両側に配置されるフロートとなる2台
の台船からなる作業台船で、各台船la、lb上には船
内外に海水を注排水するポンプ3が設置されている。4
は各台船lJ:に複数立設されたビーム支持用架台で1
両台船1a、lbの架台4a、4bどうしが互いに対向
するように並設され、それぞれ対向する架台4a、4b
頭部にはポールジヨイント機構5を介して鋼製ビーム6
の両端が取付けられて1両台船1a、lbは所定長さの
該ビーム6に連結された一台の双胴型作業船を構成して
いる。(d) Embodiment 1 is a work barge consisting of two barges that serve as floats placed on both sides of a caisson 2. On each barge la and lb, there is a pump 3 for injecting seawater into and out of the boat. is set up. 4
is one beam support frame installed on each barge lJ:.
The frames 4a and 4b of both barges 1a and lb are arranged in parallel so as to face each other, and the frames 4a and 4b are opposed to each other, respectively.
A steel beam 6 is attached to the head via a pole joint mechanism 5.
Both ends of the two-carriage barges 1a and lb are attached to each other and constitute a single twin-hulled work boat connected to the beam 6 of a predetermined length.
上記した各ビーム6中間部には所定の間隔を置いて少な
くとも2本のワイヤロープ7が垂設される。このワイヤ
ロープ7は第2図に示す如くビーム6上(又はビーム6
内)に昇降可能に設けられたガイド溝付きの断面略半円
形の各支持金物8に中間部を懸架支持され、垂下される
ワイヤロープ7両端にはケーソン2J:、面に埋め込ん
だ吊子10にピン結合するためのソケット9が取付は固
定されている。At least two wire ropes 7 are vertically disposed at a predetermined interval in the intermediate portion of each of the beams 6 described above. This wire rope 7 is placed on the beam 6 (or on the beam 6) as shown in FIG.
The middle part of the wire rope 7 is suspended and supported by each supporting hardware 8 with a guide groove that can be raised and lowered so that it can be raised and lowered. A socket 9 for pin connection is fixedly attached.
11は各ビーム6内に設けた受板15上に設置されたジ
ヤツキで、該ジヤツキ11のロッド先端は上記支持金物
8下面に固定され、該金物8をガイド板12に沿って上
下動させることができるようになっており、これにより
各ワイヤロープ7でケーソン2を吊持したときに各ワイ
ヤロープ7を緊張させて張力(吊荷重)を゛均等にする
ことができるよう構成されている。Reference numeral 11 denotes a jack installed on a receiving plate 15 provided in each beam 6. The rod end of the jack 11 is fixed to the lower surface of the support metal fitting 8, and the metal fitting 8 is moved up and down along the guide plate 12. With this, when the caisson 2 is suspended by each wire rope 7, each wire rope 7 is tensioned to equalize the tension (suspension load).
次に、この装置によってケーソン2を所定のマウンド1
3に据付ける方法を第3図により説明する。Next, this device moves the caisson 2 into a predetermined mound 1.
3, the installation method will be explained with reference to FIG.
まず1個又は複数個のケーソン2をある程度水深のある
場所に設けた水面下の仮置場14に直接陸上からクレー
ンであるいはクレーン船等で曳航して来て仮置きしてお
き1本装置の作業台船1を移動して来て所定のケーソン
2が両台船1a、1bの間に入るように操船する(第3
図(イ))。First, one or more caissons 2 are towed directly from land by a crane or by a crane ship, etc. to a temporary storage site 14 located under water at a certain depth of water, and temporarily stored there. Move barge 1 and maneuver so that a predetermined caisson 2 enters between both barges 1a and 1b (third
Figure (a)).
なお、両台船1a、lbの深さはワイヤロープ7をケー
ソン2に取付けるために該台船1a、1bを沈下させる
のに必要な深さならびにケーソン据付場所の水深と該据
付時の潮位から算出したケーソンの水面上高さ等を考慮
して決定される。The depth of both barges 1a and lb is based on the depth required to sink the barges 1a and 1b in order to attach the wire rope 7 to the caisson 2, the water depth of the caisson installation location, and the tide level at the time of installation. It is determined by considering the calculated height of the caisson above the water surface, etc.
また、ケーソン2は浮上させたままで後記の如くワイヤ
ロープ7を取付けることも可能であるが、この場合には
ケーソン2が潮流で移動しないようアンカーで固定して
おく。Further, it is also possible to attach the wire rope 7 to the caisson 2 while floating it as described later, but in this case, the caisson 2 is fixed with an anchor so that it does not move due to the tidal current.
次に、両台船1 a 、、 l b内にポンプ3によっ
てバラスト海水を注入して各ビーム6に吊下されたワイ
ヤロープ7がケーソン2ヒ面で多少たるむようになるま
で沈下させる(第3図(ロ))。Next, ballast seawater is injected into both barges 1a, 1b by the pump 3, and the wire ropes 7 suspended from each beam 6 are allowed to sink until they become somewhat slack on the surface of the caisson 2. Figure (b)).
そこで、各ビーム6のワイヤロープ7下端のソケット9
をケーソン2上面の対応する吊子lOにボルト重めした
後、両台船1a、lb内から海水を排水して徐々に浮上
させ、各ワイヤロープ7を緊張させて行く(第3図(ハ
))。Therefore, the socket 9 at the lower end of the wire rope 7 of each beam 6
After tightening the bolts to the corresponding hangers lO on the upper surface of the caisson 2, the sea water is drained from inside the barges 1a and lb, and they are gradually floated to the surface, and each wire rope 7 is tightened (see Figure 3 (H)). )).
この際、ケーソン2上面に複数環め込んだ吊子10の位
置、高さのずれやワイヤロープ7の製作誤差から生じる
ワイヤ長さの不均等によりたるみがとれていないワイヤ
ロープがあるときは、S 、?Jワイヤロープ中間部を
支持している前記支持金物8をジヤツキ11により多少
上昇させてたるみを除去し、各ワイヤロープ7の張力を
均等にした後、さらに台船1内からの排水を続けてケー
ソン2を所定高さまで浮上させ、その状態で該ケー・ソ
ン2を据付けるマウンド13位置まで移動して行く。At this time, if there is a wire rope whose slack has not been taken up due to a deviation in the position or height of multiple suspenders 10 fitted on the upper surface of the caisson 2 or uneven wire lengths caused by manufacturing errors of the wire rope 7, S,? After the supporting hardware 8 supporting the middle part of the J wire rope is raised somewhat by the jack 11 to remove slack and the tension of each wire rope 7 is equalized, water continues to be drained from inside the barge 1. The caisson 2 is floated to a predetermined height, and in that state is moved to the position of a mound 13 where the caisson 2 is installed.
ケーソン2が所定マウンド13上に移動して来たら、再
び両台船l内に海水を注入して台船[を徐々に沈下させ
て行き、ケーソン2をマウンドエ3上に静かに着底させ
る(第3図(ニ))7ケーソン2の着底後も更に台船1
を多少沈下させて、各ワイヤロープ7の緊張を解いてか
ら、各ワイヤロープ7両端のソケット9をケーソン2の
吊子10から外し、その後台船1内のバラスト水を排水
して再び浮−ヒさせ(第3図(ホ))1台船1は据付完
了したケーソン2から離脱移動させ、再び次のケーソン
据付けを行なうのである。When the caisson 2 has moved to the predetermined mound 13, seawater is again injected into both barges 1 to gradually sink the barges, and the caisson 2 is gently brought to the bottom on the mound 3. Figure 3 (d)) 7 After caisson 2 hits the bottom, barge 1
After sinking the barge a little to release the tension on each wire rope 7, remove the sockets 9 at both ends of each wire rope 7 from the suspenders 10 of the caisson 2, then drain the ballast water in the barge 1 and float it again. The barge 1 is moved away from the caisson 2 that has been completely installed, and the next caisson installation is carried out again.
(ホ)発明の効果
本発明は上述のようにしてなり、次のような効果を有す
る。(E) Effects of the Invention The present invention is constructed as described above and has the following effects.
a)ケーソン据付場所の水深が浅くて起重機船等の大型
船舶が進入不可能な場所にウィンチ等の揚荷機械を使用
しないで大型ケーソンを所定位置に簡弔正確に据付ける
ことができる。a) A large caisson can be easily and accurately installed in a predetermined position without using a lifting machine such as a winch in a place where the water depth of the caisson installation site is shallow and large vessels such as a crane boat cannot enter.
b)作業船を構成する左右角台船を連結したビームから
垂下したワイヤロープによりケーソンを吊持するように
したので、該ワイヤロープのケーソンへの結合作業が容
易であり、前記従来技術のようなケーソン上に取付けた
支持棒両端を両台船上の受金具で担ぐ方式と異なり、波
浪や潮流の影響を受けて連結作業に時間がかかるという
ようなことがない。b) Since the caisson is suspended by a wire rope hanging from a beam connecting the left and right barges constituting the work boat, the work of connecting the wire rope to the caisson is easy, and unlike the prior art described above, the caisson is suspended. Unlike the method in which both ends of the support rod are mounted on a caisson and supported by metal fittings on both barges, there is no need for time-consuming connection work due to the influence of waves or currents.
C)両台船が複数本のビームに連結されて一体化されて
いるので、ケーソン両側へ近付いて吊トげ態勢へ移行す
るまでの時間が短くて済む。C) Since both barges are connected to multiple beams and integrated, it takes less time to approach both sides of the caisson and shift to the lifting position.
d)各ビーム両端が両台船上の架台にポールジヨイント
機構を介して連結されているので、各台船はそれぞれ自
由に水平・垂直方向に運動可能であるから、波の影響を
受けてケーソンの吊りげによる偏荷重が生じても常に水
平状態を保持することができる。d) Both ends of each beam are connected to the pedestals on both barges via a pole joint mechanism, so each barge can move freely in the horizontal and vertical directions, so the caisson can move freely under the influence of waves. It can always maintain a horizontal state even if an uneven load occurs due to suspension.
e)各ワイヤロープ中間支持部分にはケーソンを吊持し
たときのワイヤロープのたるみを除去する昇降可能な支
持金物が設けられているので、各ワ・1′ヤローブは均
等な張力でケーソンを吊持することができ、常にケーソ
ンを水平に揚げ降ろし作業を行なうことができる、等々
。e) Each wire rope intermediate support part is equipped with a support hardware that can be raised and lowered to remove the slack in the wire rope when the caisson is suspended, so that each wire rope can hang the caisson with equal tension. The caisson can be lifted and lowered horizontally at all times, etc.
第1図は本発明装置の一例を示す正面図、第2図はワイ
ヤロープがビームから垂下された状j3の拡大図、第3
図(イ)〜(ホ)は本発明方法によるケーソン据付けの
作業手順の一例を示す説明図である。
符号説明
1−二台の台船 2−ケーソン 3−ポンプ4−架台
5−ポールジヨイント機構
6−ビーム 7−ワイヤロープ 8−支持金物9−ソケ
ット 10−吊子 11−シャツ本12−ガイド板 1
3−ケーソン据付はマウンド14−ケーソン仮置場 1
5−受板Fig. 1 is a front view showing an example of the device of the present invention, Fig. 2 is an enlarged view of the state j3 in which the wire rope is suspended from the beam, and Fig. 3
Figures (A) to (E) are explanatory diagrams showing an example of the work procedure for installing a caisson according to the method of the present invention. Symbol explanation 1 - Two barges 2 - Caisson 3 - Pump 4 - Frame
5-Pole joint mechanism 6-Beam 7-Wire rope 8-Support hardware 9-Socket 10-Hanger 11-Shirt book 12-Guide plate 1
3- Caisson installation on mound 14- Caisson temporary storage area 1
5-Socket plate
Claims (3)
を置いて互いに連結された2台の台船を、仮置場に仮置
きしたあるいは水面に浮上したケーソンの両側に来るよ
うに操船し、次いで両台船内に海水を注入して上記各ビ
ーム中間部に所定間隔を置いて垂下した少なくとも2本
のワイヤロープがケーソン上面で多少たるむまで両台船
を沈下させ、次に各ワイヤロープをケーソン上面に埋め
込んだ吊子等に止着した後、両台船内の海水を排水しつ
つ各ワイヤロープを緊張させ、たるみのとれていないワ
イヤロープがあるときは当該ワイヤロープを支持する支
持金物を上昇させてたるみをとり、しかる後さらに両台
船を浮上させて上記各ワイヤロープでケーソンを吊持し
ながらケーソン据付場所まで移動させ、次に両台船内に
再び海水を注入して両台船を沈下させることによりケー
ソンを据付け位置に着底させた後、各ワイヤロープをケ
ーソンから外して両台船を浮上させて、据付完了したケ
ーソンから離脱することを特徴とするケーソン据付方法
。(1) Two barges connected to each other by multiple beams at a distance large enough to accommodate the caisson are maneuvered so that they come on either side of the caisson that has been temporarily placed in a temporary storage area or floating on the water surface, and then Seawater is injected into both barges, and both barges are sunk until at least two wire ropes hanging at a predetermined interval from the middle of each beam are slightly slack on the top of the caisson, and then each wire rope is attached to the top of the caisson. After the wire ropes are fixed to the hangers etc. embedded in the barges, each wire rope is tensed while draining the seawater inside both barges, and if there is a wire rope that has not taken up the slack, the supporting hardware supporting the wire rope is raised. After taking up the slack, both barges were floated and moved to the caisson installation site while suspending the caisson with each of the wire ropes mentioned above.Next, seawater was again injected into both barges and both barges were submerged. The caisson installation method is characterized in that after the caisson is brought to the bottom at the installation position by lowering the caisson, each wire rope is removed from the caisson, both barges are floated, and the caisson is separated from the installed caisson.
台を並設し、両台船の対向し合う上記架台頭部どうしを
それぞれボールジョイント機構を介してビームにより連
結して両台船間にケーソンが入るだけの間隔を置くよう
にし、各ビーム中間部には所定の間隔を置いて少なくと
も2本のワイヤロープが垂設され、各ワイヤロープはそ
の中間部をビームに設置した昇降可能な支持金物に支持
され、垂下した各ワイヤロープ両端にはケーソン上面に
取付けた吊子に止着可能な連結具が固定され、両台船に
はそれぞれ船内外へ注排水するポンプが設置されてなる
ことを特徴とするケーソン据付装置。(2) A plurality of pedestals are installed in parallel on each of the two barges that serve as floats, and the opposing pedestal parts of both barges are connected by a beam via a ball joint mechanism to connect the two barges. At least two wire ropes are hung vertically at a predetermined distance from each other in the middle of each beam, and each wire rope has its middle part set on the beam. Connectors that can be attached to hangers attached to the top of the caisson are fixed to both ends of each hanging wire rope supported by supporting hardware, and both barges are each equipped with a pump that pumps water into and out of the ship. A caisson installation device characterized by:
なし、ワイヤロープ中間部を該支持金物に懸架するよう
にし、該支持金物はそれぞれビームに設置されたジャッ
キにより昇降可能に構成されてなる特許請求の範囲第2
項記載のケーソン据付装置。(3) Each of the supporting hardware of the wire rope has a substantially semicircular cross section, and the middle part of the wire rope is suspended from the supporting hardware, and each of the supporting hardware is configured to be able to be raised and lowered by a jack installed on the beam. Claim 2
Caisson installation equipment as described in section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32911987A JPH0833010B2 (en) | 1987-12-25 | 1987-12-25 | Caisson installation method and device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32911987A JPH0833010B2 (en) | 1987-12-25 | 1987-12-25 | Caisson installation method and device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01169021A true JPH01169021A (en) | 1989-07-04 |
JPH0833010B2 JPH0833010B2 (en) | 1996-03-29 |
Family
ID=18217825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP32911987A Expired - Lifetime JPH0833010B2 (en) | 1987-12-25 | 1987-12-25 | Caisson installation method and device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0833010B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016145478A (en) * | 2015-02-06 | 2016-08-12 | あおみ建設株式会社 | Floater and method of reinforcing water area structure |
CN108396757A (en) * | 2018-05-03 | 2018-08-14 | 国家海洋局第二海洋研究所 | Caisset for soft soil foundation sea wall |
WO2019187169A1 (en) * | 2018-03-27 | 2019-10-03 | 正佳 近藤 | Vacuum consolidation dredging method, tower air-tight loading caisson, and dedicated work ship |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102544957B1 (en) * | 2021-06-25 | 2023-06-20 | 서영숙 | Ship unit for refloat of sunken vessel |
-
1987
- 1987-12-25 JP JP32911987A patent/JPH0833010B2/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016145478A (en) * | 2015-02-06 | 2016-08-12 | あおみ建設株式会社 | Floater and method of reinforcing water area structure |
WO2019187169A1 (en) * | 2018-03-27 | 2019-10-03 | 正佳 近藤 | Vacuum consolidation dredging method, tower air-tight loading caisson, and dedicated work ship |
WO2019187174A1 (en) * | 2018-03-27 | 2019-10-03 | 正佳 近藤 | Vacuum consolidation dredging method, tower air-tight loading caisson, and dedicated work ship |
CN108396757A (en) * | 2018-05-03 | 2018-08-14 | 国家海洋局第二海洋研究所 | Caisset for soft soil foundation sea wall |
Also Published As
Publication number | Publication date |
---|---|
JPH0833010B2 (en) | 1996-03-29 |
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