JPS61158527A - Method of joining together caissons - Google Patents
Method of joining together caissonsInfo
- Publication number
- JPS61158527A JPS61158527A JP28005284A JP28005284A JPS61158527A JP S61158527 A JPS61158527 A JP S61158527A JP 28005284 A JP28005284 A JP 28005284A JP 28005284 A JP28005284 A JP 28005284A JP S61158527 A JPS61158527 A JP S61158527A
- Authority
- JP
- Japan
- Prior art keywords
- joining
- joint
- caissons
- boxes
- strand
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D25/00—Joining caissons, sinkers, or other units to each other under water
Abstract
Description
〔産業上の利用分野〕
この発明は、コンクリート浮函体（以下、単に面体とい
う。）の接合方法に関する亀のである。
〔従来の技術および問題点〕
従来、海上構造物を構築する場合、特開昭５５−１９５
１６号公報、特開昭５５−１９３３２号公報、特開昭５
７−２０１４２７−１！公報等に示すように、予め適当
数のエニン）Ｋ分割して製作した函体な海洋上にて接合
する方法が一部実施されている。
しかし、前記従来工法は小型の函体の接合に関するもの
で、接合断面の長さが１００１１はどもある大型の函体
を接合するには、接合金具を多数必賛とするなど作業が
煩雑であり、製作コストも高い等の問題があり、不適で
あった。
〔問題点を解決するための手段〕
この発明は、以上の問題点を解決するために創案された
もので、洋上において大型の函体どおしの面合わせおよ
び接合を、容易かつ確実に行なうことができ、接合状況
の確認も簡単に行なえ、製作コストの低減化を図ること
のできる函体の接合方法を提供することを目的とする。
この出願に係る発明は、鉛直方向を仕切壁で網目状に仕
切った函体をドライドツク内で複数建造し、所定の海洋
上に浮上させ係留した後、互いの函体を引き寄せて施工
する接合方法であり、以下に述べる構成により前記目的
を達成するものである。
まず、函体接合面内の面合わせ部には複数の仕切壁を設
け、該仕切壁内の喫水面より上７ｊＫ面合わせ用の接合
キーを２″５向に形成し、函体の接合面周囲には止水ゴ
ムを配設する。次に互いの接合キーを突合わせて面合わ
せを行ない、止水ゴムの圧着により止水された面合わせ
部の排水を行なう。次に、底版部にＰＣストランドを配
し、該ＰＣストランドを緊張させる。
面合わせに際しては、予め接合キーの突合わせ部に支圧
金物を付設しておき、支圧金物どおしを当接させて接合
を行なうことが望ましい。
また、接合キー周囲の接合面には、防舷材を付設してお
くことが好ましい。
〔実施例〕
図面は、この発明の実施例を示すもので、以下函体の形
状等につき説明する。
第１図は、接合する２つの面体のうちその一方を示すも
ので、この函体１は底版２と外壁４とからなり、その内
側は鉛直方向を仕切壁３で網目状に仕切られている。
接合面の形状は、図示したように底版２および外壁４が
接合方向に張出して形成されており、底版２上部の長手
方向には段部９が形成されていて、底版２と外壁４の端
面には長手方向に連続して止水ゴム１４が取付けられて
いる。
接合面内の面合わせ部には、複数の仕切壁５が設けられ
ており、この仕切壁５内の中間には縦壁６が、また喫水
面より上方には横壁７がそれぞれ設けられている。縦壁
６と横壁７との直交部分には台形状の切り欠きを形成し
てなる接合キー（凹部）８が設けられており、第２図に
示すように、この接合キー８の突合わせ部には、複数の
支圧金物ｎが取付けられている。
さらに１接合面の接合キー８周囲にはゴム等からなる防
舷栃１３が取付けられている。
以上に述べた函体１と対応する他方の函体１０は、特に
図示していないが、はぼ同様の形状を有している。すな
わち、接合面の前記接合キー８と相対向する箇所には、
接合キー（凸部）１１が設けられており、底版も前記函
体１の底版２と嵌合するよう、前記段部９に合わせて上
部が突出した形状となり[Industrial Application Field] The present invention relates to a method for joining concrete floating boxes (hereinafter simply referred to as face pieces). [Conventional techniques and problems] Conventionally, when constructing offshore structures,
No. 16, JP-A-55-19332, JP-A-Sho 5
7-201427-1! As shown in publications, etc., a method has been partially implemented in which a box is prepared by dividing it into an appropriate number of pieces and joining them on the ocean. However, the above-mentioned conventional method is related to joining small boxes, and to join a large box with a joint cross section length of 10,011 mm, the work is complicated and requires a large number of joining metal fittings. However, it was unsuitable due to problems such as high production costs. [Means for Solving the Problems] This invention was devised to solve the above problems, and it is an object of the present invention to easily and reliably perform face-to-face matching and joining of large-sized boxes at sea. It is an object of the present invention to provide a method for joining boxes, which can easily check the joining status, and reduce manufacturing costs. The invention related to this application is a joining method in which a plurality of boxes vertically partitioned into a mesh shape by partition walls are constructed in a dry dock, floated on a predetermined ocean surface and moored, and then the boxes are pulled together. The above object is achieved by the configuration described below. First, a plurality of partition walls are provided at the mating part in the joint surface of the box, and joint keys for mating are formed in the 2"5 directions above the draft surface in the partition wall, and the joining surface of the box is Water stop rubber is placed around the periphery.Next, the joint keys are butted against each other to perform face-to-face contact, and water is drained from the face-up area where the water has been stopped by crimping the water stop rubber.Next, the bottom plate is Arrange the PC strands and tension the PC strands. When joining, attach pressure-bearing hardware to the butt part of the joining key in advance, and perform the joint by bringing the pressure-bearing hardware into contact with each other. It is desirable that a fender be attached to the joint surface around the joint key. [Example] The drawings show an example of the present invention, and the shape of the box etc. will be explained below. Fig. 1 shows one of the two face pieces to be joined, and this box 1 consists of a bottom plate 2 and an outer wall 4, and the inside thereof is partitioned in the vertical direction by a partition wall 3 in the form of a mesh. As shown in the figure, the shape of the joint surface is such that the bottom plate 2 and the outer wall 4 extend in the joining direction, and a stepped portion 9 is formed in the longitudinal direction of the top of the bottom plate 2. Water stop rubber 14 is attached to the end face of the outer wall 4 continuously in the longitudinal direction.A plurality of partition walls 5 are provided at the face-to-face portion within the joint surface, and an intermediate portion within the partition wall 5 is provided. A vertical wall 6 is provided above the draft surface, and a horizontal wall 7 is provided above the draft surface.A joint key (recess) is formed by forming a trapezoidal notch at the orthogonal portion of the vertical wall 6 and the horizontal wall 7. 8, and as shown in Fig. 2, a plurality of bearing hardware n are attached to the abutting portions of the joint key 8.Furthermore, around the joint key 8 on one joint surface, a rubber The other box 10, which corresponds to the box 1 described above, has a shape similar to that of a ship, although it is not particularly shown. At a portion of the joining surface facing the joining key 8,
A joining key (protrusion) 11 is provided, and the bottom plate is shaped so that its upper part protrudes in accordance with the stepped portion 9 so as to fit with the bottom plate 2 of the case 1.
【いる。
なお、第３図、第４図はそれぞれ函体１，１゜の面合わ
せ状態を、第５図、第６図は防舷＠１３の形状を、オフ
図は止水ゴム１４の形状を示すものである。
次に函体１，１０の接合手順を図面に基いて説明する。
■ ドライドツク内で建造した函体１，１０を所定の海
洋上に浮上させ係留した後、計８図に示すようにウィン
チ正、ボラード１６により接合面間距離を５０’ｆｆｉ
程度まで引寄せる。次いで吃水を微調整し、両面体１．
ｌＯのレベルを合わせる。
接合面間の距離は、超音波測定器、光波測定器等で測定
する。
■ ｆ９１１ｉｉＯＫ示すように、一方の函体１の接合
面の所定位置に複数のジヤツキ１７を設置し、このジヤ
ツキ１７を用いて他方の函体１０を引寄せて、両面体１
．ｌＯの面合わセを行なう。
■ 牙１０図に示すように、ジヤツキ１７を操作すると
、まず防舷剃１３が圧縮され、次いで接合キー８，１】
の朶合わせ部に取付けた支圧金物■。
νどおしが接触する。従って両面体１．１０の接合面は
、支圧金物ｎ、１２を介して圧着される。
図示したように接合キー８．１１周囲の接合面には、防
舷劇１３を付設してあるので、面合わせ時のショックが
吸収され、波の影響等を最小限に抑えることができる。
また、支圧金物１２は微調整可能であるので、接合キー
８．１１の製作誤差等が問題とならない。
■ 第１１図に示すように、止水ゴム１４で覆われた接
合面内の水を排出して、水圧により両函体１，１０を圧
着させる。
■ 第１２図に示すように、底版２．２下部にＰＣスト
ランド１８を通した後、−次緊張を行う。
■ パラスト水を調整して、両函体１．ｌＯの相対位置
を合わセた後、第１３図に示すように支圧金具ν、１２
を溶接固定する。
Φ 才１４図に示すように、底版２，２下部にモルタル
１９を注入し、硬化後ＫＰＣストランド１８の二次緊張
を行なう。
■ 第１５図に示すように１底版２．２上部に新たにＰ
Ｃストランド加を２段通し、鉄筋継手２１ Ｋて連結し
た後、無収縮コンクリート２２を打設する。
■ 計１６図に示すように、隔壁取付部に鉄筋を配置し
コンクリートを打設して、両函体１゜１０の接合面間に
複数の隔壁２３を設ける。なお、縦壁６、横壁７は、全
体の施工終了後に取り除いてもよい。
■ 第１７図に示すように、底版２，２上部に打設した
無収縮コンクリ−） ２２が硬化したら、上２段、のＰ
Ｃストランド加を緊張する。
〔発明の効果〕
（１） 接合キーは２方向に形成されており、上下左
右両方向の位置決めを同時罠行なえるので、函体どおし
の面合わせが容易であり、しかも確実である。
（ｉｉ） 接合キーは函体と一体に形成されており１
、接合金員等を使用しないので、接合面に局部応力が発
生しに＜＜、また製作コストも低い。
（ｉｉｉ） 接合キーは喫水面より上刃に位置してい
るので、接合状況の確認が容易である。
Ｑ■） 接合は水圧の利用およびＰＣストランドの緊
張により行なうので、強力であり、大型構造物の接合に
適する。
（Ｖｌ 接合面周囲には止水ゴムを配設してあるので
、施工時に接合面内をドライ状態に保つことができ、コ
ンクリートの打設等を陸上での施工と同条件で行なうこ
とができる。[There is. Furthermore, Figures 3 and 4 show the face-to-face state of the boxes 1 and 1°, Figures 5 and 6 show the shape of the fender @13, and the off-line view shows the shape of the water stop rubber 14. It is something. Next, the procedure for joining the boxes 1 and 10 will be explained based on the drawings. ■ After floating and mooring the boxes 1 and 10 built in the dry dock above the ocean, the distance between the joint surfaces is set to 50'ffi using winches and bollards 16, as shown in Figure 8.
Attract to a certain extent. Next, finely adjust the stuttering, and double-sided body 1.
Adjust the lO level. The distance between the bonding surfaces is measured using an ultrasonic measuring device, a light wave measuring device, or the like. ■ f911iiOKAs shown, a plurality of jacks 17 are installed at predetermined positions on the joining surface of one box 1, and the jacks 17 are used to pull the other box 10 together, and the double-sided box 1
．． Conduct a face-to-face meeting with IO. ■ As shown in Fig. 10, when the jack 17 is operated, the fender shaving 13 is first compressed, and then the joining keys 8, 1]
Pressure-bearing hardware attached to the joint part■. ν are in contact. Therefore, the joint surfaces of the double-sided body 1.10 are pressed together via the bearing hardware n, 12. As shown in the figure, the fender 13 is attached to the joint surface around the joint keys 8 and 11, so that the shock at the time of mating is absorbed and the influence of waves etc. can be minimized. Further, since the bearing hardware 12 can be finely adjusted, manufacturing errors of the joint keys 8, 11, etc. do not pose a problem. (2) As shown in FIG. 11, the water in the joint surface covered with the water-stop rubber 14 is discharged, and the two boxes 1 and 10 are pressed together by water pressure. - As shown in Fig. 12, after passing the PC strand 18 through the lower part of the bottom plate 2.2, the next tension is applied. ■ Adjust the palast water and remove both boxes 1. After adjusting the relative positions of lO, as shown in FIG.
Weld and fix. Φ As shown in Fig. 14, mortar 19 is injected into the lower part of the bottom plates 2, 2, and after hardening, the KPC strands 18 are subjected to secondary tensioning. ■ As shown in Figure 15, a new P is added on the top of the 1-bottom version 2.2.
After passing two stages of C strands and connecting them with reinforcing bar joints 21 K, non-shrinkage concrete 22 is poured. (1) As shown in Figure 16, a plurality of partition walls 23 are provided between the joining surfaces of both boxes 1° 10 by placing reinforcing bars at the partition wall mounting portions and pouring concrete. Note that the vertical walls 6 and the horizontal walls 7 may be removed after the entire construction is completed. ■ As shown in Figure 17, when the non-shrinkage concrete (22) cast on the top of the bottom slabs 2 and 2 hardens,
Tighten the C strand. [Effects of the Invention] (1) The joining keys are formed in two directions, and positioning can be performed simultaneously in both the up, down, right and left directions, making it easy and reliable to align the boxes together. (ii) The joining key is formed integrally with the box.
Since no joining metal or the like is used, no local stress is generated on the joining surfaces, and the manufacturing cost is low. (iii) Since the joining key is located above the draft level, it is easy to check the joining status. Q■) Since the bonding is performed by using water pressure and tensioning the PC strands, it is strong and suitable for bonding large structures. (Vl Water stop rubber is placed around the joint surface, so the inside of the joint surface can be kept dry during construction, and concrete pouring can be performed under the same conditions as construction on land. .
第１図は接合前の函体を示す斜視図、第２図は面合わせ
部の要部拡大図、第３図、第４図は面合わせ状態を示す
要部拡大図、第５図は防舷材の正面図、第６図はその平
面図、′３Ｉ！７図は止水ゴムの正面図、計８図〜第１
７ｖｉＡは接合工程図である。
１、ｌＯ・・・・・・函体、２・・・・・・底版、３・
・・・・・仕切壁、４・・・・・・外壁、５・・・・・
・仕切壁、６・・・・・・縦壁、７・・・横壁、８・・
・・・・接合キー（凹部）、９・・・・・・段部、１１
・・・・・・接合キー（凸部）、ν・・・・・・支圧金
物、■・・・・・・防舷剃、１４・・・・・・止水ゴム
、■・・・・・・ウィンチ、１６・・・・・・ボラード
、１７・・・・・・ジヤツキ、１ｇ・・・・・・ＰＣス
トランド、１９・・・・・・モルタル、加・・・・・・
ＰＣストランド、２１・・・・・・鉄筋継手、２２・・
・・・・無収縮コンクリート、２３・・・・・・隔壁。
第２図
第３図
１に４図
第５図
第６図
区 のFigure 1 is a perspective view showing the box before joining, Figure 2 is an enlarged view of the main parts of the mating part, Figures 3 and 4 are enlarged views of the main parts showing the mating state, and Figure 5 is the shield. The front view of the gunwale, Figure 6 is its plan view, '3I! Figure 7 is a front view of the water stop rubber, total of 8 figures - 1st
7viA is a joining process diagram. 1. 1O...Case, 2...Bottom plate, 3.
...Partition wall, 4...Outer wall, 5...
・Partition wall, 6...Vertical wall, 7...Horizontal wall, 8...
...Joining key (recess), 9...Step, 11
...Joining key (protrusion), ν...Bearing hardware, ■...Fender shaver, 14...Water stop rubber, ■... ... winch, 16 ... bollard, 17 ... jack, 1g ... PC strand, 19 ... mortar, addition ...
PC strand, 21...Reinforced joint, 22...
...Non-shrinkage concrete, 23...Partition wall. Figure 2, Figure 3, Figure 1, Figure 4, Figure 5, Figure 6.
Claims (3)
イドツク内で複数建造し、所定の海洋上に浮上させ係留
した後、互いの函体を引き寄せて施工する接合方法にお
いて、 函体面合わせ部には複数の仕切壁を設け、 該仕切壁内の喫水面より上方に面合わせ用の接合キーを
２方向に形成し、函体の接合面周囲には止水ゴムを配設
した後、前記接合キーを突合わせて面合わせを行い、止
水ゴムの圧着により止水された面合わせ部の排水を行な
つた後に、底版部にＰＣストランドを配し、該ＰＣスト
ランドを緊張させることにより接合することを特徴とす
る函体の接合方法。(1) In a joining method in which a plurality of boxes each vertically partitioned into a mesh pattern by partition walls are built in a dry dock, floated and moored on a designated ocean surface, and then pulled together to construct the boxes, the box surface A plurality of partition walls are provided in the mating part, and joint keys for mating are formed in two directions above the draft surface in the partition walls, and water-stop rubber is placed around the joint surfaces of the box. , After performing face-to-face contact by butting the joining keys together, and draining the water-stopped face-to-face portion by crimping the water-stop rubber, placing a PC strand on the bottom plate portion and tensioning the PC strand. A method for joining boxes characterized by joining.
る特許請求の範囲第１項記載の函体の接合方法。(2) The method for joining boxes according to claim 1, wherein a bearing metal fitting is attached to the abutting portion of the joining key.
る特許請求の範囲第２項記載の函体の接合方法。(3) The method for joining a box according to claim 2, wherein a fender is attached to the joining surface around the joining key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28005284A JPS61158527A (en) | 1984-12-29 | 1984-12-29 | Method of joining together caissons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28005284A JPS61158527A (en) | 1984-12-29 | 1984-12-29 | Method of joining together caissons |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61158527A true JPS61158527A (en) | 1986-07-18 |
| JPH05492B2 JPH05492B2 (en) | 1993-01-06 |
Family
ID=17619629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28005284A Granted JPS61158527A (en) | 1984-12-29 | 1984-12-29 | Method of joining together caissons |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61158527A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5016887A (en) * | 1973-06-14 | 1975-02-21 | ||
| JPS5416887A (en) * | 1977-05-20 | 1979-02-07 | Millipore Corp | Filter unit |
| JPS5544001A (en) * | 1978-09-18 | 1980-03-28 | Taisei Corp | Construction method of joining concrete floating body on sea |
-
1984
- 1984-12-29 JP JP28005284A patent/JPS61158527A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5016887A (en) * | 1973-06-14 | 1975-02-21 | ||
| JPS5416887A (en) * | 1977-05-20 | 1979-02-07 | Millipore Corp | Filter unit |
| JPS5544001A (en) * | 1978-09-18 | 1980-03-28 | Taisei Corp | Construction method of joining concrete floating body on sea |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05492B2 (en) | 1993-01-06 |
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