JP2006028831A - Jacket supporting height adjusting holder - Google Patents

Jacket supporting height adjusting holder Download PDF

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JP2006028831A
JP2006028831A JP2004207481A JP2004207481A JP2006028831A JP 2006028831 A JP2006028831 A JP 2006028831A JP 2004207481 A JP2004207481 A JP 2004207481A JP 2004207481 A JP2004207481 A JP 2004207481A JP 2006028831 A JP2006028831 A JP 2006028831A
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jacket
foundation pile
pile
temporary
leg
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JP4504126B2 (en
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Nobuaki Tsujioka
辻岡伸昭
Takayoshi Okunuki
奥貫孝佳
Shujiro Murai
村井修二郎
Masami Shimizu
清水正巳
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Taisei Corp
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Taisei Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To shorten construction period as well as lowering cost by temporarily supporting a jacket without constructing a temporary structure such as a temporary receiving pile and a temporary receiving mound or the like, improving the quality of work by preventing the lowering of the quality of surveyance by omitting the work in the deep water by a diver in the height adjustment of the jacket, making the height adjustment even if there is no floating crane and preventing the damage of a shear key and a foundation pile, etc. when the foundation pile comes into contact with a jacket leg in the case the jacket of the foundation pile is inserted. <P>SOLUTION: The jacket supporting height adjusting holder comprises the jacket constituted of a frame body consisting of vertical and horizontal columns and a beam, the foundation pile supporting the jacket, a holder installed on the upper end of the foundation pile and a holder mounted to the inside of the jacket leg as the vertical column of the jacket. A moving up and down mechanism is installed on the holder on the foundation pile, and a receiving substitute block maintaining an interval between the holder mounted on the jacket leg and the upper end of the foundation pile is provided. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、ジャケットを基礎杭上に仮設置する際のジャケットの高さを調整するジャケット支持高さ調整架台に関するものである。
The present invention relates to a jacket support height adjusting frame for adjusting the height of a jacket when the jacket is temporarily installed on a foundation pile.

従来のジャケット仮設置時の高さ調整方法を二つ説明する。
仮設置されるジャケットとは、陸上で主に下部構造をあらかじめ製作し、それを設置現場(例えば設置したい水底の水面上)まで起重機船で搬送して設置現場に据え付けてから、上部構造を取付けるような柱と梁で組立てられた枠体の事である。
第一の調整方法として、仮受け杭を使用した方法が挙げられる。
図6に示すように、まずジャケット(a)を設置したい場所、例えば水底(d)にジャケット(a)を仮支えする仮受け杭(b)を、あらかじめ打設する。
仮受け杭(b)を打設する際には、仮受け杭(b)を設置する底面に、捨石や砂を投入して築造する港湾構造物の基礎部分である仮受けマウンド(c)を設置する。
仮受け杭(b)は杭本体(b1)の上端にテーブルのような板状の支持板(b2)を持った構造をなしている。
仮受け杭(b)の設置高さは、ジャケット(a)を仮支えする高さによって決まる。仮受け杭(b)の高さは仮受け杭の打設時に高さを厳密に管理するか、仮受け杭の高さ測量後、仮受け杭上端のテーブル状支持板(b2)上に高さ調整用プレート(f)等を設置することで高さの調整を行っている。高さ調整用プレート(f)を設置する際には、仮受け杭(b)の杭頭が水面(e)下に埋没しているため潜水士が測量・調整作業を行う。
ジャケット(a)下部には仮受け架台(a2)を設け、この仮受け架台(a2)と仮受け杭(b)とを結合してジャケット(a)を仮設置する。その際に、ジャケット(a)が水平に設置されていない場合や、ジャケットの設置高さを変更したい場合などには再び、テーブル状支持板(b2)とジャケット仮受け架台(a2)との間に調整用プレート(f)を設置してやる必要がある。調整用プレート設置時には、図7に示すように、ジャケット(a)をいったん起重機船(g)により吊上げる。それにより、ジャケット仮受け架台(a2)と支持板(b2)との間に隙間を空け、その間に調整用プレート(f)を挟む事になる。
仮設置したジャケット(a)の縦柱(レグ)(a1)内側には、下端、中間、上端部などにあらかじめ、部分的に挿入ガイドを設置する。挿入ガイドとはジャケットレグの軸方向にある程度の長さを持った鋼材を取付けたものである。挿入ガイドは基礎杭をジャケットレグに挿入していく際に、ジャケットレグに沿って軸方向に基礎杭を挿入する役割を果たす。
そして、図8に示すように、そのジャケットレグ内部に本設基礎杭を上部から挿入する。
ジャケットレグ内を通した本設基礎杭の下部は水底(d)などに固定する。水底などに固定した後は、本設基礎杭の上端部に設置した反力架台とジャケットを溶接構造で直接結合する事で最終的にジャケット据付工事が完了する。
第二の方法として図9に示すように、本設の基礎杭(h)を利用してジャケット(a)を仮設置する方法が挙げられる。この方法は本設の基礎杭(h)を、最初に打設する。その基礎杭にジャケットレグをはめ込む形でジャケット(a)を設置するという方法である。
この方法ではジャケット仮設置後にジャケットの高さを調整するには油圧ジャッキ等を使用して調整する。油圧ジャッキで調整する場合には、まず、ジャケットレグ(a1)内を通過させ、ジャケットレグの上端の穴から飛び出た本設基礎杭の上端にテーブル板状の油圧ジャッキ支持板(i)を取り付ける。その油圧ジャッキ支持板(i)とジャケット上面を油圧ジャッキ(j)で結合する。そして、油圧ジャッキ(j)でジャケット(a)の高さを調整するという方法である。
Two conventional height adjustment methods for temporary installation of the jacket will be described.
Temporarily installed jackets are mainly constructed on the ground in advance, and then transported by a hoist ship to the installation site (for example, on the surface of the bottom of the water you want to install), and then installed on the installation site. It is a frame that is assembled with pillars and beams.
As a first adjustment method, a method using a temporary receiving pile can be cited.
As shown in FIG. 6, first, a place where the jacket (a) is to be installed, for example, a temporary support pile (b) for temporarily supporting the jacket (a) on the bottom (d) is placed in advance.
When placing the temporary support pile (b), the temporary support mound (c), which is the foundation of the harbor structure constructed by throwing rubble and sand into the bottom surface where the temporary support pile (b) is installed, is constructed. Install.
The temporary support pile (b) has a structure having a plate-like support plate (b2) like a table at the upper end of the pile body (b1).
The installation height of the temporary receiving pile (b) is determined by the height at which the jacket (a) is temporarily supported. The height of the temporary support pile (b) is strictly controlled when placing the temporary support pile, or after the height measurement of the temporary support pile, the height of the temporary support pile (b2) is high on the table-like support plate (b2) at the upper end of the temporary support pile. The height is adjusted by installing a height adjusting plate (f) or the like. When installing the height adjustment plate (f), the diving person conducts surveying and adjustment work because the pile head of the temporary support pile (b) is buried under the water surface (e).
A temporary support base (a2) is provided at the lower part of the jacket (a), and the temporary support base (a2) and the temporary support pile (b) are coupled to temporarily install the jacket (a). At that time, if the jacket (a) is not installed horizontally, or if it is desired to change the installation height of the jacket, the space between the table-like support plate (b2) and the temporary jacket support frame (a2) is again. It is necessary to install the adjustment plate (f). When the adjustment plate is installed, as shown in FIG. 7, the jacket (a) is once lifted by the hoist ship (g). As a result, a gap is formed between the jacket temporary support base (a2) and the support plate (b2), and the adjustment plate (f) is sandwiched therebetween.
Insertion guides are partially installed in advance at the lower end, the middle, the upper end, and the like inside the longitudinal column (leg) (a1) of the temporarily installed jacket (a). The insertion guide is a steel material having a certain length in the axial direction of the jacket leg. The insertion guide serves to insert the foundation pile in the axial direction along the jacket leg when the foundation pile is inserted into the jacket leg.
And as shown in FIG. 8, a permanent foundation pile is inserted into the jacket leg from the upper part.
The lower part of the permanent foundation pile passing through the jacket leg is fixed to the bottom of the water (d). After fixing to the bottom of the water, the jacket installation work is finally completed by directly connecting the reaction force stand and the jacket installed at the upper end of the foundation foundation pile with a welded structure.
As a second method, as shown in FIG. 9, there is a method of temporarily installing the jacket (a) using the foundation pile (h). In this method, the foundation foundation pile (h) is first placed. In this method, the jacket (a) is installed in such a manner that the jacket leg is fitted into the foundation pile.
In this method, a hydraulic jack or the like is used to adjust the height of the jacket after temporary installation of the jacket. When adjusting with a hydraulic jack, first, the table plate-shaped hydraulic jack support plate (i) is attached to the upper end of the main foundation pile protruding from the hole at the upper end of the jacket leg through the jacket leg (a1). . The hydraulic jack support plate (i) and the upper surface of the jacket are coupled by a hydraulic jack (j). And it is the method of adjusting the height of a jacket (a) with a hydraulic jack (j).

前記した従来のジャケット設置方法にあっては、次のような問題点がある。
<1> 仮受け杭(b)を使用してのジャケット高さ調整方法においては、仮受け杭(b)および仮受けマウンド(c)は仮設の構造物であり、仮設および本設の構造物を二重に設置するためコストの増加と工事期間の長期化が懸念される。
<2> 仮受け杭(b)を使用する際の仮受け杭(b)の高さ調整は、仮受け杭(b)設置後に、仮受け杭(b)上端部のテーブル状支持板(b2)上に高さ調整プレート(f)を設置することでなされる。しかし、この仮受け杭の杭頭は水中に位置するため、杭頭の位置測量などは潜水士による水中深い場所での測量・調整となるため難易度が高い。このため、測量時の精度が低下ひいては工事全体における質の低下が懸念される。
<3> 仮受け杭を使用する場合で、仮受け杭(b)上にジャケット(a)を仮設置した後で高さ調整を行う場合には、ジャケット(a)をいったん、起重機船(g)で吊上げて、仮受け杭(b)とジャケット仮受け架台(a2)との間に高さ調整プレート(f)を設置する事になる。このため起重機船が無いと高さの調整ができないという事が挙げられる。
<4> ジャケットレグ内に挿入ガイドが部分的に設置されていたとしても、ジャケットが傾斜した際に、基礎杭先頭部分が挿入ガイドの設置されていない部分と接触した場合、ジャケットレグ内側にある接合部分(シアキー)や基礎杭自体を損傷させる可能性がある。特に、本設の基礎杭を利用してジャケット(a)を仮設置した場合には、仮受け杭を利用した方法のように、ジャケットレグ(a1)に本設基礎杭(h)を一本一本挿入していくのと異なり接触可能性が高まる。例えば、4本の本設基礎杭(h)でジャケット(a)と結合するような場合には、その4本の本設基礎杭(h)をジャケット(a)にある4つのジャケットレグ(a1)にいっぺんに通さねばならない。その際に4本のうち1本でも位置がずれたりしている場合には、ジャケットレグ(a1)と本設基礎杭(h)が接触する可能性が高くなる。接触が挿入ガイドの無い部分であれば、内部の接合部分(シアキー)や基礎杭自体が損傷する可能性がある。
The conventional jacket installation method described above has the following problems.
<1> In the jacket height adjustment method using the temporary receiving pile (b), the temporary receiving pile (b) and the temporary receiving mound (c) are temporary structures, and the temporary and permanent structures. There are concerns that the cost will increase and the construction period will be prolonged.
<2> When the temporary support pile (b) is used, the height of the temporary support pile (b) is adjusted after the temporary support pile (b) is installed, by the table-like support plate (b2) at the upper end of the temporary support pile (b). This is done by installing a height adjustment plate (f) on top. However, since the pile head of this temporary support pile is located in the water, the position survey of the pile head is difficult because it is a survey and adjustment in a deep water location by a diver. For this reason, there is a concern that the accuracy during surveying will be reduced, and that the quality of the entire construction will be reduced.
<3> When using a temporary support pile and adjusting the height after temporarily installing the jacket (a) on the temporary support pile (b), temporarily remove the jacket (a) from the hoist ship (g The height adjustment plate (f) is installed between the temporary support pile (b) and the jacket temporary support base (a2). For this reason, the height cannot be adjusted without a hoist ship.
<4> Even if the insertion guide is partially installed in the jacket leg, when the jacket is tilted, if the top of the foundation pile comes into contact with the part where the insertion guide is not installed, it is inside the jacket leg There is a possibility of damaging the joint (shear key) and the foundation pile itself. In particular, when the jacket (a) is temporarily installed using the foundation foundation pile, a single foundation foundation pile (h) is placed on the jacket leg (a1) as in the method using the temporary receiving pile. Unlike inserting one, the possibility of contact increases. For example, when four permanent foundation piles (h) are connected to the jacket (a), the four permanent foundation piles (h) are connected to the four jacket legs (a1) on the jacket (a). ) All at once. At that time, if even one of the four is displaced, there is a high possibility that the jacket leg (a1) and the main foundation pile (h) are in contact with each other. If the contact is a portion without an insertion guide, there is a possibility that an internal joint portion (shear key) or the foundation pile itself is damaged.

上記のような課題を解決するために、本発明のジャケット支持高さ調整架台は縦横の柱、梁からなる枠体で構成されたジャケットと、ジャケットを支える基礎杭と、基礎杭上端に設置する架台と、ジャケットの縦柱であるジャケットレグ内部に取り付けた架台よりなり、基礎杭上の架台に設置する昇降機構と、ジャケットレグに取り付けた架台と基礎杭上端との間隔を維持する受け替えブロックにより構成した事を特徴とするものである。ここで基礎杭上端に設置する架台は、高さの異なる複数の架台群によって構成した事を特徴とするものである。
In order to solve the problems as described above, the jacket support height adjusting stand of the present invention is installed at a jacket composed of vertical and horizontal columns and a frame body, a foundation pile supporting the jacket, and an upper end of the foundation pile. A stand that consists of a stand and a stand attached to the inside of the jacket leg that is the vertical column of the jacket, and a lifting block that is installed on the stand on the foundation pile, and a replacement block that maintains the distance between the stand attached to the jacket leg and the top end of the foundation pile It is characterized by comprising. Here, the pedestal installed at the upper end of the foundation pile is constituted by a plurality of gantry groups having different heights.

本発明のジャケット支持高さ調整架台は以上説明したようになるから次のような効果を得ることができる。
<1> 従来の仮受け杭を利用して、ジャケットを仮設置する方法において必要な仮受け杭や仮受けマウンドの設置を省略する事により、コスト削減と工程短縮を図る事ができる。
<2> 従来の仮受け杭を利用して、ジャケットを仮設置する方法において、ジャケット仮設置後に高さ調整を行うには起重機船によるジャケット吊上げ、つまり起重機船自体が必要であった。本発明では、基礎杭先端部の架台上に設置された昇降機構によりジャケット仮設置後の高さ調整を行う。このため起重機船はジャケット仮設置後の高さ調整では不要となる。
<3> 従来ではジャケット下部に設置される仮受け架台や、基礎杭頭部に設置される反力架台は、溶接構造で直接、ジャケットや基礎杭に取付けられていた。そのため、転用・再利用ができず、コスト増加の要因となっていた。本発明のジャケット支持高さ調整架台は取付け金物部以外のパーツは転用・再利用が可能であるため、リサイクルによるコスト削減が図られる。
<4> 基礎杭を反力とする昇降機構の架台は、基礎杭上に設置した架台を転用することにより、昇降機構の設置位置や固定等が容易になると共に安全性が向上する。
<5> 基礎杭上に設置する架台は数種類の高さの架台を用意すれば、高さの誤差に応じて最適な高さの架台を選択できる。それにより現場にて打設した基礎杭の高さの誤差を広く調整する事ができる。
<6> ジャケットレグ内に挿入ガイドをジャケットレグの軸方向に上部から下部まで連続して設置する場合には、ジャケットが傾斜した場合でも基礎杭とジャケットレグが直接接触する前に、挿入ガイドに接触し挿入方向に誘導するため、内側の接合部分や基礎杭の損傷を回避できる。
Since the jacket support height adjusting frame of the present invention is as described above, the following effects can be obtained.
<1> By using a conventional temporary receiving pile and omitting the installation of the temporary receiving pile and the temporary receiving mound necessary in the method of temporarily installing the jacket, it is possible to reduce costs and shorten processes.
<2> In the method of temporarily installing a jacket using a conventional temporary receiving pile, the jacket is lifted by a hoist ship, that is, the hoist ship itself is necessary to adjust the height after the temporary installation of the jacket. In this invention, the height adjustment after jacket temporary installation is performed with the raising / lowering mechanism installed on the mount frame of the foundation pile front-end | tip part. For this reason, the hoist ship is not required for height adjustment after temporary installation of the jacket.
<3> Conventionally, the temporary support frame installed at the lower part of the jacket and the reaction force frame installed at the head of the foundation pile are directly attached to the jacket and the foundation pile with a welded structure. For this reason, it could not be diverted and reused, which caused an increase in cost. Since the jacket support height adjusting frame of the present invention can be diverted and reused, parts other than the mounting hardware can be reduced in cost by recycling.
<4> The platform of the elevating mechanism using the foundation pile as a reaction force diverts the platform installed on the foundation pile, thereby facilitating the installation position and fixing of the elevating mechanism and improving safety.
<5> If the pedestal to be installed on the foundation pile is prepared with several types of pedestals, the optimum pedestal can be selected according to the height error. Thereby, the error of the height of the foundation pile placed on site can be adjusted widely.
<6> When the insertion guide is continuously installed in the jacket leg from the upper part to the lower part in the axial direction of the jacket leg, even if the jacket is inclined, before the foundation pile and the jacket leg are in direct contact, Contact and guide in the insertion direction can avoid damage to the inner joint and foundation pile.

以下図面を参照にしながら本発明の好適な実施の形態を詳細に説明する。   DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

<1>基礎杭の設置
まず、ジャケット(1)を設置したい場所の水底(2)にジャケット(1)を支える基礎杭(3)をあらかじめ打設する。
<1> Installation of Foundation Pile First, a foundation pile (3) that supports the jacket (1) is placed in advance on the bottom (2) where the jacket (1) is to be installed.

<2>基礎杭上端部への架台設置
基礎杭(3)を打設後に基礎杭の打設高さを計測する。
あらかじめ打設した基礎杭の高さの誤差を吸収できるように架台は1つで無く、数種類の高さ(8)を持った架台(4)を用意しておく事もできる。そして、高さ(8)が違う数種類の架台(4)の中から、ジャケット設置高さが設計上の高さに近くなるような架台(4)を選定する。
本設の基礎杭(3)の上端部に(選択した)架台(4)を設置する。
<2> Mounting the base on the upper end of the foundation pile After placing the foundation pile (3), measure the placement height of the foundation pile.
In order to absorb the error in the height of the foundation pile placed in advance, it is possible to prepare a gantry (4) having several heights (8) instead of one gantry. Then, from among several types of mounts (4) having different heights (8), the mount (4) is selected so that the jacket installation height is close to the designed height.
The (selected) platform (4) is installed at the upper end of the foundation foundation pile (3).

<3>仮受け架台
ジャケットレグ(11)内側の上端部あるいは中間の位置には、あらかじめ仮受け架台(111)を取付ける。
図3に示すように仮受け架台(111)は例えば、十字型に形成されたH型鋼で構成する。4つの十字架各端は、ジャケットレグ内部に取付けた4つの取付け金物(112)と結合させる。4つの取り付け金物はジャケットレグ内部に上部から見て対角線上に配置し、かつ高さが平行になるように取付ける。各取付け金物(112)は上部と下部から成り立ち、上部と下部の取付け金具はH型鋼がちょうど間に挟まる程度に間隔を開ける。十字型仮受け架台の取付け取外しは、まず、仮受け架台を取付け金物(112)が無い位置で、4つの端が隙間部と平行になる位置までジャケット内に下ろしていく。そこで仮受け架台の4つの端が対角線上にある4つの取付け金具(112)の隙間に収まるように、上部から見て十字架の交点を中心に時計回りまたは反時計回りに回転させる事で取り付ける。(図4参照)
取り外す場合には、同様に回転させて、取付け金具(112)との結合を外し、ジャケットレグ内から吊上げて取り外す事になる。
仮受け架台(111)は十字架状以外のものでも構成することができ、例えば、4本のH型鋼を使用して、井桁のように組むことでも可能である。
<3> Temporary receiving stand A temporary receiving stand (111) is attached in advance to the upper end of the jacket leg (11) or an intermediate position.
As shown in FIG. 3, the temporary support base (111) is made of, for example, an H-shaped steel formed in a cross shape. Each end of the four crosses is combined with four mounting hardware (112) mounted inside the jacket leg. The four mounting hardware are arranged diagonally when viewed from the top inside the jacket leg, and are mounted so that their heights are parallel. Each mounting hardware (112) consists of an upper part and a lower part, and the upper and lower mounting brackets are spaced apart so that the H-shaped steel is sandwiched between them. To attach or remove the cross-shaped temporary support base, first, the temporary support base is lowered into the jacket until the four ends are parallel to the gap portion at a position where there is no mounting hardware (112). Therefore, the temporary support base is attached by rotating it clockwise or counterclockwise around the intersection of the cross as viewed from above so that the four ends of the temporary support base are accommodated in the gaps between the four mounting brackets (112) on the diagonal line. (See Figure 4)
In the case of detaching, it is rotated in the same manner, the coupling with the mounting bracket (112) is removed, and it is lifted from the jacket leg and removed.
The temporary support base (111) may be configured in a shape other than a cross shape, and for example, it is possible to assemble it like a cross beam using four H-shaped steels.

<4>受け替えブロックによる仮受け
ジャケットを仮設置する際に、受け替えブロック(6)を基礎杭先端に設置した架台(4)上に設置して仮受けをする。受け替えブロックとは一定の高さを有する鋼材の直方体、立方体である。受け替えブロックは高さの異なるものを複数組製作する。また、ここで架台(4)上に受け替えブロックではなく昇降機構(7)を設置しておくことで、昇降機構(7)によって仮受けすることもできる。
<4> Temporary receiving by replacement block When the jacket is temporarily installed, the replacement block (6) is temporarily installed by placing it on the gantry (4) installed at the tip of the foundation pile. The replacement block is a cuboid or cube of steel having a certain height. Make several sets of replacement blocks with different heights. Moreover, it can also be temporarily received by the elevating mechanism (7) by installing the elevating mechanism (7) instead of the replacement block on the gantry (4).

<5>ジャケットレグ内側の挿入ガイド
ジャケットレグに基礎杭を通す前に、あらかじめジャケットレグ内側に挿入ガイド(114)をジャケットレグ(11)の軸方向に連続して設置しておくこともできる。挿入ガイド(114)とは、ジャケットレグ(11)の軸方向に鋼材を取付けたものである。図5に示すように、挿入ガイド(114)の内側への突出寸法は接合部(シアキー)(113)の内側への突出寸法より大きく形成する。連続して設置する事で、基礎杭が傾いて挿入されたとしても、常に挿入ガイドが基礎杭を挿入方向に誘導するため、ジャケットレグ内側の接合部や基礎杭の接触、損傷を回避することができる。
<5> Insertion Guide Inside Jacket Leg Before the foundation pile is passed through the jacket leg, an insertion guide (114) can be installed in the jacket leg in advance in the axial direction of the jacket leg (11). The insertion guide (114) is a steel material attached in the axial direction of the jacket leg (11). As shown in FIG. 5, the inward projecting dimension of the insertion guide (114) is larger than the inward projecting dimension of the joint (shear key) (113). Even if the foundation pile is inclined and inserted by installing continuously, the insertion guide always guides the foundation pile in the insertion direction, so avoid contact and damage of the joints and foundation pile inside the jacket leg Can do.

<6>ジャケットの仮設置
起重機船によりジャケット(1)を吊上げ、あらかじめ設置してある基礎杭(3)をジャケットレグ(11)に挿入する事でジャケット(1)を受け替えブロック(6)上に仮設置する。つまり、ジャケットレグ(11)に設置した仮受け架台(111)を、ブロック(6)、基礎杭側の架台(4)と基礎杭(3)により仮支持する。
<6> Temporary installation of jacket The jacket (1) is lifted by a hoist and the foundation pile (3) installed in advance is inserted into the jacket leg (11) to replace the jacket (1) on the block (6) Temporary installation. That is, the temporary support base (111) installed in the jacket leg (11) is temporarily supported by the block (6), the base (4) on the foundation pile side, and the foundation pile (3).

<7>ジャケット仮設置後のジャケット高の調整
図2で示すように受け替えブロックで作ったジャケットレグ側の仮受け架台(111)と基礎杭側の架台(4)との間に昇降機構(7)を設置する。昇降機構が例えば油圧ジャッキであればジャッキを伸張し、隙間ができたら、受け替えブロックを取外す。ここで、昇降機構により、ジャケット(1)を設置したい高さより少し上まで持ち上げる。そしてジャケット(1)が昇降機構(7)により持ち上がった状態で、仮受け架台(111)と基礎杭側架台(4)の間にちょうど設置したい高さになるような受け替えブロック(6)を設置し、あるいは調整プレートを挿入することで再び仮受けする。調整プレートとはブロックの高さに比較して厚みが極めて薄い鋼板である。高さに問題が無ければ、その位置でジャケットレグと基礎杭側を固定しジャケットを本設置する。
<7> Adjustment of Jacket Height after Temporary Installation of Jacket As shown in FIG. 2, an elevating mechanism (between a temporary support base (111) on the jacket leg side made of a replacement block and a base (4) on the foundation pile side) 7) is installed. If the lifting mechanism is, for example, a hydraulic jack, the jack is extended, and when a gap is formed, the replacement block is removed. Here, the jacket (1) is lifted to a level slightly higher than the desired height by the lifting mechanism. Then, with the jacket (1) lifted by the lifting mechanism (7), a replacement block (6) that is exactly the height you want to install between the temporary support base (111) and the foundation pile side base (4). Install it again or temporarily insert it by inserting the adjustment plate. The adjustment plate is a steel plate that is extremely thin compared to the height of the block. If there is no problem with the height, the jacket leg and foundation pile side are fixed at that position and the jacket is permanently installed.

<8>昇降機構、支持高調整架台、仮受け架台の撤去と転用
ジャケットレグと基礎杭を固定する際に、昇降機構(7)、基礎杭上架台(4)とジャケット側の仮受け架台(111)は撤去する。これらは次のジャケット設置時に転用し、再利用する。
<8> Lifting mechanism, support height adjustment stand, removal of temporary support stand and fixing jacket leg and foundation pile, lifting mechanism (7), foundation pile upper stand (4) and jacket side temporary support stand ( 111) is removed. These will be diverted and reused at the next jacket installation.

本発明のジャケット支持高さ調整架台の実施例の説明図Explanatory drawing of the Example of the jacket support height adjustment stand of this invention 図1のX部分の拡大図Enlarged view of part X in FIG. 本発明の仮受け架台の平面図The top view of the temporary support stand of this invention 本発明の十字型仮受け架台の取付け方法の実施例の平面図The top view of the Example of the attachment method of the cross-shaped temporary support stand of this invention ジャケットレグ内の連続した挿入ガイドの実施例の断面図Cross section of an embodiment of a continuous insertion guide in the jacket leg 仮受け杭を利用した従来のジャケット設置方法の実施例の説明図Explanatory drawing of the example of the conventional jacket installation method using a temporary support pile 仮受け杭を利用した従来のジャケット設置方法にて調整プレートを使用する際の起重機船での吊上げ実施例の説明図Explanatory drawing of the lifting example in the hoist ship when using the adjustment plate in the conventional jacket installation method using the temporary support pile 仮受け杭を利用した従来のジャケット設置方法にて仮受け杭設置、調整プレートにより調整後に本設基礎杭を海底に打設する際の実施例の説明図Explanatory drawing of the example at the time of placing the foundation foundation pile on the seabed after adjustment by the temporary plate installation and adjustment plate by the conventional jacket installation method using the provisional pile 従来の本設基礎杭を仮受け杭とした設置方法の実施例の説明図Explanatory drawing of the example of the installation method which used the conventional permanent foundation pile as a temporary receiving pile

符号の説明Explanation of symbols

1・・・・・ジャケット
11・・・・ジャケットレグ
111・・・仮受け架台
112・・・取付け金物部分
113・・・シアキー
114・・・挿入ガイド
2・・・・・水底
3・・・・・基礎杭
4・・・・・架台(基礎杭先端部)
5・・・・・水面
6・・・・・受け替えブロック
7・・・・・昇降機構
8・・・・・基礎杭先端部に設置する架台の高さ
a・・・・・ジャケット
a1・・・・ジャケットレグ
a2・・・・仮受け架台
b・・・・・仮受け杭
b1・・・・仮受け杭本体
b2・・・・テーブル状支持板
c・・・・・仮受けマウンド
d・・・・・水底
e・・・・・水面
f・・・・・高さ調整プレート
g・・・・・起重機船
h・・・・・本設基礎杭
i・・・・・油圧ジャッキ支持板
j・・・・・油圧ジャッキ
DESCRIPTION OF SYMBOLS 1 ... Jacket 11 ... Jacket leg 111 ... Temporary receiving stand 112 ... Mounting hardware part 113 ... Shear key 114 ... Insertion guide 2 ... Water bottom 3 ... ..Foundation pile 4 ... frame (foundation pile tip)
5... Water surface 6... Replacement block 7... Elevating mechanism 8...・ ・ ・ Jacket leg a2 ・ ・ ・ ・ Temporary receiving base b ・ ・ ・ Temporary receiving pile b1 ・ ・ ・ ・ ・ ・ Temporary receiving pile main body b2 ・ ・ ・ ・ ・ ・ Table-shaped support plate c ・ ・ ・ Temporary receiving mound d・ ・ ・ ・ ・ Water bottom e ... Water surface f ... Height adjustment plate g ... Hoist ship h ... Main foundation pile i ... Hydraulic jack support Plate j ... Hydraulic jack

Claims (2)

縦横の柱、梁からなる枠体で構成されたジャケットと、
ジャケットを支える基礎杭と、
基礎杭上端に設置する架台と、
ジャケットの縦柱であるジャケットレグ内部に取り付けた架台よりなり、
基礎杭上の架台に設置する昇降機構と、
ジャケットレグに取り付けた架台と基礎杭上端との間隔を維持する受け替えブロック
により構成した、
ジャケット支持高さ調整架台。
A jacket composed of vertical and horizontal pillars, a frame made of beams,
A foundation pile to support the jacket,
A stand to be installed at the top of the foundation pile;
It consists of a frame attached inside the jacket leg, which is the vertical column of the jacket,
Elevating mechanism installed on the base on the foundation pile,
Constructed by a replacement block that maintains the distance between the base attached to the jacket leg and the top of the foundation pile,
Jacket support height adjustment stand.
基礎杭上端に設置する架台は、
高さの異なる複数の架台群によって構成する、
請求項1記載のジャケット支持高さ調整架台。
The platform installed at the top of the foundation pile is
Consists of a plurality of mount groups with different heights,
The jacket support height adjustment stand according to claim 1.
JP2004207481A 2004-07-14 2004-07-14 Jacket support height adjustment stand Active JP4504126B2 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160024111A (en) * 2014-08-25 2016-03-04 (주)젠텍엔지니어링 Hybrid support structure for marine wind power generation and construction method thereof
KR20160075034A (en) * 2014-12-19 2016-06-29 삼성중공업 주식회사 Supporting structure for marine structure
JP2017150303A (en) * 2017-05-25 2017-08-31 三井造船株式会社 Base structure for installing ocean wind turbine
JP2018100578A (en) * 2016-12-21 2018-06-28 Jfeエンジニアリング株式会社 Jacket position adjustment mechanism and building method of landing style foundation
CN109763470A (en) * 2017-11-09 2019-05-17 刘中平 Adjustment device, system and method for foundation in water jacket

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01244012A (en) * 1987-11-12 1989-09-28 Kajima Corp Bearing construction of maritime structure
JP2002088779A (en) * 2000-09-13 2002-03-27 Mitsubishi Heavy Ind Ltd Jacket structure and method for setting jacket structure
JP2004044199A (en) * 2002-07-11 2004-02-12 Mitsubishi Heavy Ind Ltd Construction method for jacket structure and level adjusting apparatus
JP2005299265A (en) * 2004-04-14 2005-10-27 Kajima Corp Installation method of underwater structure, and underwater structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01244012A (en) * 1987-11-12 1989-09-28 Kajima Corp Bearing construction of maritime structure
JP2002088779A (en) * 2000-09-13 2002-03-27 Mitsubishi Heavy Ind Ltd Jacket structure and method for setting jacket structure
JP2004044199A (en) * 2002-07-11 2004-02-12 Mitsubishi Heavy Ind Ltd Construction method for jacket structure and level adjusting apparatus
JP2005299265A (en) * 2004-04-14 2005-10-27 Kajima Corp Installation method of underwater structure, and underwater structure

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160024111A (en) * 2014-08-25 2016-03-04 (주)젠텍엔지니어링 Hybrid support structure for marine wind power generation and construction method thereof
KR101661092B1 (en) * 2014-08-25 2016-09-30 (주)젠텍엔지니어링 Hybrid support structure for marine wind power generation and construction method thereof
KR20160075034A (en) * 2014-12-19 2016-06-29 삼성중공업 주식회사 Supporting structure for marine structure
KR101711446B1 (en) * 2014-12-19 2017-03-02 삼성중공업 주식회사 Supporting structure for marine structure
JP2018100578A (en) * 2016-12-21 2018-06-28 Jfeエンジニアリング株式会社 Jacket position adjustment mechanism and building method of landing style foundation
JP2017150303A (en) * 2017-05-25 2017-08-31 三井造船株式会社 Base structure for installing ocean wind turbine
CN109763470A (en) * 2017-11-09 2019-05-17 刘中平 Adjustment device, system and method for foundation in water jacket
CN109763470B (en) * 2017-11-09 2020-12-22 刘中平 Adjusting device, system and method for underwater foundation jacket

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