JP2005232747A - Method and member for installing underwater framework structure - Google Patents

Method and member for installing underwater framework structure Download PDF

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JP2005232747A
JP2005232747A JP2004041596A JP2004041596A JP2005232747A JP 2005232747 A JP2005232747 A JP 2005232747A JP 2004041596 A JP2004041596 A JP 2004041596A JP 2004041596 A JP2004041596 A JP 2004041596A JP 2005232747 A JP2005232747 A JP 2005232747A
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vertical leg
pile
frame structure
guide member
underwater
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Atsushi Hashimoto
橋本敦史
Hironori Fukazawa
深沢裕紀
Shujiro Murai
村井修二郎
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Taisei Corp
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Taisei Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and equipment, which enable an underwater framework structure to automatically perform centering so as to fit a lower end of a vertical leg 2 into a head part of a pile 3, even if the underwater framework structure is sunk in an approximate position by removing the drawback that a worker cannot perform direct visual observation, when the vertical leg 2 of the huge underwater framework structure is fitted into the head of the pile 3 driven into the bottom of the deep water. <P>SOLUTION: A guide member 1, which is equipped with a bottom surface inclined toward the inside of the vertical leg 2 and whose bottom surface is formed in such a manner shape as not to intrude into a projected plane of the vertical leg 2, is detachably attached to the lower end of the vertical leg 2. When the lower end of the vertical leg 2 abuts on the head part of the pile 3 in the descent of the underwater framework structure to the bottom of the water, the center of the vertical leg 2 is moved in the direction of the center of the pile 3 by the inclined bottom surface of the guide member 1. After the vertical leg 2 is installed on the outer periphery of the pile 3, the guide member 1 is detached from the lower end of the vertical leg 2. The installation method for the underwater framework structure is practiced as above. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、水中骨組構造の設置方法と設置部材に関するものである。
The present invention relates to an installation method and installation member for an underwater frame structure.

水底に構造物を構築する場合に、陸上で水中構造物の骨組み、すなわち水中骨組構造を製造し、その水中骨組構造を設置位置まで水上運搬して、事前に打設した杭の頭部に嵌合するように沈設する工法が、橋脚の基礎や防波堤などの構築に広く利用されている。
図５はその一例であるが、水底に杭ａが打設してある。
一方、巨大な水中骨組構造ｂの鉛直脚ｃは、杭aの外径より大きい内径を持つ中空の柱体であり、この鉛直脚ｃを、杭aの外周に嵌合させて水底に設置する。
水底に水中骨組構造ｂを固定した後に、水中骨組構造ｂを主体として橋脚などの水中構造物を構築するものである。
特開平７−２１６８４４ When constructing a structure on the bottom of the water, manufacture the framework of the underwater structure on the land, that is, the underwater framework structure, transport the underwater framework structure to the installation position, and fit it to the head of the pile that has been placed in advance. The construction method of laying so as to fit together is widely used for the construction of pier foundations and breakwaters.
FIG. 5 shows an example of this, and a pile a is placed on the bottom of the water.
On the other hand, the vertical leg c of the huge underwater frame structure b is a hollow column having an inner diameter larger than the outer diameter of the pile a, and the vertical leg c is fitted to the outer periphery of the pile a and installed on the bottom of the water. .
After fixing the underwater frame structure b to the water bottom, an underwater structure such as a bridge pier is constructed with the underwater frame structure b as a main component.
JP-A-7-216844

前記したような従来の水中骨組構造の設置方法にあっては、次のような問題点がある。
＜イ＞深い水底に打設した杭の頭部に、巨大な水中骨組構造の鉛直脚を嵌合する方法であるから、作業員が直接目視しながら位置の調整を行う地上での工法とはことなり、設置作業に経験と時間を要する。
＜ロ＞特に海上では波浪の影響があるから、クレーンで吊り上げている水中骨組構造は静止し難く、正確に杭の頭部に鉛直脚を嵌合させる作業は容易ではない。
＜ハ＞鉛直脚の下端にガイド部材を取り付ける構造も考えられるが、ガイド部材は単に嵌合させる瞬間に利用するためだけの仮の部材であるから、多数本の脚にガイド部材を取り付ける構造はきわめて不経済なものとなる。
The conventional underwater frame structure installation method as described above has the following problems.
<I> Since it is a method to fit a vertical leg of a huge underwater frame structure to the head of a pile placed in the deep bottom of the water, what is the method of construction on the ground where the operator adjusts the position while observing directly? In fact, the installation work takes experience and time.
<B> Since there is a wave effect especially at sea, the underwater frame structure suspended by a crane is difficult to stand still, and it is not easy to accurately fit the vertical leg to the head of the pile.
<C> A structure in which the guide member is attached to the lower end of the vertical leg is also conceivable, but the guide member is only a temporary member for use at the moment of fitting, so the structure in which the guide member is attached to a large number of legs It will be very uneconomical.

上記のような従来の課題を解決するために、本発明の水中骨組構造の設置方法は、水底に打設した杭の外寸法よりも大きい内寸法の鉛直脚を備えた水中骨組構造を水底に設置する方法であって、鉛直脚の下端には、鉛直脚の内側へ向けて傾斜した底面を備え、かつ底面は鉛直脚の投影面内に侵入しない形状に形成したガイド部材を、取り外し自在に取り付け、水中骨組構造を水底に下降する際に鉛直脚の下端が杭の頭部に当接した場合には、吊り下げ状態の水中骨組構造の鉛直脚下端のガイド部材の傾斜底面によって鉛直脚の中心が杭の中心方向に移動するように構成し、鉛直脚を杭の外周に設置した後、ガイド部材を鉛直脚下端から取り外して行う、水中骨組構造の設置方法を特徴としたものである。   In order to solve the above-described conventional problems, the installation method of the underwater frame structure of the present invention includes an underwater frame structure having a vertical leg with an inner dimension larger than the outer dimension of a pile placed on the water floor. A method for installing a guide member, which is provided with a bottom surface inclined toward the inside of the vertical leg at the lower end of the vertical leg and formed so that the bottom surface does not enter the projection surface of the vertical leg. When the lower end of the vertical leg comes into contact with the head of the pile when the underwater frame structure is lowered to the bottom of the water, the vertical leg of the vertical leg is The present invention is characterized by an underwater frame structure installation method in which the center moves in the direction of the center of the pile, the vertical leg is installed on the outer periphery of the pile, and the guide member is removed from the lower end of the vertical leg.

また本発明の水中骨組構造の設置方法は、水底に打設した杭の外寸法よりも大きい内寸法の鉛直脚を備えた水中骨組構造を水底に設置する方法であって、鉛直脚の下端には、鉛直脚の内側へ向けて傾斜した底面を備え、かつ底面は鉛直脚の投影面内に侵入しない形状に形成したガイド部材を、取り外し自在に取り付け、水中骨組構造を水底に下降する際に鉛直脚の下端が杭の頭部に当接した場合には、吊り下げ状態の水中骨組構造の鉛直脚下端のガイド部材の傾斜底面によって鉛直脚の中心が杭の中心方向に移動するように構成し、鉛直脚を杭の外周に設置した後、ガイド部材を鉛直脚下端から取り外し、その後に杭の頭部と鉛直脚の下端付近にモルタルなどを注入して行う、水中骨組構造の設置方法を特徴としたものである。   Further, the installation method of the underwater frame structure of the present invention is a method of installing an underwater frame structure with a vertical leg having an inner dimension larger than the outer dimension of a pile placed on the bottom of the water, on the lower end of the vertical leg. Is equipped with a guide member that has a bottom surface that is inclined toward the inside of the vertical leg, and the bottom surface is formed so as not to enter the projection surface of the vertical leg. When the lower end of the vertical leg comes into contact with the head of the pile, the center of the vertical leg moves in the direction of the center of the pile by the inclined bottom surface of the guide member at the lower end of the vertical leg of the suspended underwater frame structure After installing the vertical leg on the outer periphery of the pile, remove the guide member from the lower end of the vertical leg, and then inject mortar etc. near the head of the pile and the lower end of the vertical leg. It is a feature.

さらに本発明の設置部材は、水中骨組構造の鉛直脚の下端に取り付ける部材であって、鉛直脚の外周に取り付け、取り外し自在の取り付け帯と、この取り付け帯の周囲に複数個とりつけたガイド部材とよりなり、ガイド部材は、取り付け帯を介して鉛直脚に取り付けた場合に、鉛直脚の内側へ向けて傾斜した底面を備え、かつ底面は鉛直脚の投影面内に侵入しない位置に配置してある、水中骨組構造の設置部材を特徴としたものである。
Furthermore, the installation member of the present invention is a member attached to the lower end of the vertical leg of the underwater frame structure, attached to the outer periphery of the vertical leg, a removable attachment band, and a plurality of guide members attached around the attachment band. When the guide member is attached to the vertical leg via the attachment band, the guide member has a bottom surface that is inclined toward the inside of the vertical leg, and the bottom surface is disposed at a position that does not enter the projection surface of the vertical leg. It is characterized by an installation member having an underwater frame structure.

本発明の水中骨組構造の設置方法と設置部材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。
＜イ＞深い水底に打設した杭の頭部に、巨大な水中骨組構造の鉛直脚を嵌合する場合に、作業員が直接目視できない不利な点を補い、概略の位置に沈下させた場合にも、水中骨組構造は自動的に求心して鉛直脚の下端を杭の頭部に嵌合させることができる。
＜ロ＞海上での作業のように波浪の影響がある場合で、クレーンで吊り上げている水中骨組構造の姿勢が不安定であっても、水中骨組構造の鉛直脚を効率よく杭の頭部に嵌合させることができる。
＜ハ＞鉛直脚を杭の頭部に嵌合させる瞬間に利用するためだけの仮の部材であるが、それを繰り返して転用することによって経済的に利用することができる。
Since the installation method and installation member of the underwater frame structure of the present invention are as described above, the following effects can be obtained.
<I> When fitting a huge vertical underwater frame structure to the head of a pile placed in the deep bottom of the water, if a worker compensates for a disadvantage that cannot be seen directly by an operator, and sinks to a rough position In addition, the underwater frame structure can be automatically centered to fit the lower end of the vertical leg to the head of the pile.
<B> Even when there is an effect of waves like work at sea, even if the posture of the underwater frame structure suspended by the crane is unstable, the vertical leg of the underwater frame structure can be efficiently attached to the head of the pile. Can be fitted.
<C> Although it is a temporary member only used at the moment when the vertical leg is fitted to the head of the pile, it can be used economically by repeatedly diverting it.

以下図面を参照しながら本発明の水中骨組構造の設置方法と設置部材の実施例について説明する。   Hereinafter, an installation method of an underwater frame structure and an example of an installation member according to the present invention will be described with reference to the drawings.

＜１＞前提条件。
本発明は、図５の例と同様に、水中骨組構造の鉛直脚２を、水底に打設した杭３の頭部に嵌合するための設置方法と、その場合に使用する設置部材に関するものである。 <1> Precondition.
The present invention relates to an installation method for fitting a vertical leg 2 of an underwater frame structure to the head of a pile 3 placed on the bottom of the water, and an installation member used in that case, as in the example of FIG. It is.

＜２＞ガイド部材。
このガイド部材１は、水中骨組構造の鉛直脚２の下端に取り付ける部材である。
そしてこのガイド部材１は、取り付け帯１１と傾斜底面体１２とより構成する。
取り付け帯１１は、鉛直脚２の外周を包囲する帯状体である。
そして取り付け帯１１は、鉛直脚２の外形を複数に分割した分割片によって構成する。
図の実施例では円を二分割した半円状の部材を２個で構成してあるが、これは鉛直脚２が円筒である場合の構成であり、水中骨組構造の鉛直脚２が角筒の場合には「コ」字状となる。
さらに図の実施例では円を二分割した半円であるが、三分割、など複数に分割することもできる。
取り付け帯１１の端部には連結縁１４を形成し、ボルト孔１５を開口することによってボルトとナットによる締結、解除が可能となる。 <2> A guide member.
This guide member 1 is a member attached to the lower end of the vertical leg 2 of an underwater frame structure.
The guide member 1 includes an attachment band 11 and an inclined bottom surface body 12.
The attachment band 11 is a band-like body that surrounds the outer periphery of the vertical leg 2.
And the attachment belt | band | zone 11 is comprised by the division piece which divided | segmented the external shape of the vertical leg 2 into plurality.
In the embodiment shown in the figure, the semicircular member obtained by dividing the circle into two parts is configured, but this is a configuration when the vertical leg 2 is a cylinder, and the vertical leg 2 of the underwater frame structure is a square tube. In this case, it becomes a “U” shape.
Furthermore, in the embodiment shown in the figure, the circle is a semicircle obtained by dividing the circle into two parts, but it can be divided into a plurality of parts such as three parts.
A connecting edge 14 is formed at the end of the attachment band 11 and a bolt hole 15 is opened, so that fastening and releasing with a bolt and a nut are possible.

＜３＞傾斜底面体
取り付け帯１１の周囲の外側には傾斜底面体１２を取り付ける。この傾斜底面体１１は、複数個とりつけたブロック体の部材である。
この傾斜底面体１２は、取り付け帯１１を介して鉛直脚２に取り付けた場合に、鉛直脚２の内側へ向けて傾斜した底面１３を備えている。
さらに、傾斜底面体１２は、取り付け帯１１を介して鉛直脚２の外周に取り付けた場合に、その一部でも鉛直脚２の内寸法（円柱なら内径）の投影面内に侵入しない位置に配置してある。
もし鉛直脚２の内径の鉛直投影面内に侵入する状態であると、その部分が杭３頭部に衝突して鉛直脚２を杭３に嵌合することができないからである。
ただし、鉛直脚２の内側には、シアキー２１を取り付け、このシアキー２１が鉛直脚２の内部空間に突出している場合がある。その場合、上記の「鉛直脚２の「内径」「内寸法」とは、シアキー２１とシアキー２１との内側の寸法を意味させることも可能である。
したがって鉛直脚２の「内径」とは実質的な内径を意味するものである。
傾斜底面体１２の取り付け帯１１側には段部１４を形成してある。
この段部１４の奥行きの寸法を、鉛直脚２の部材厚さ以下の寸法に形成して、段部１４で鉛直脚２の重量を受け得ように構成する。 <3> Inclined bottom surface body The inclined bottom surface body 12 is attached to the outside of the periphery of the attachment band 11. The inclined bottom body 11 is a member of a block body that is mounted in plural.
The inclined bottom body 12 includes a bottom surface 13 that is inclined toward the inside of the vertical leg 2 when attached to the vertical leg 2 via the attachment band 11.
Further, when the inclined bottom body 12 is attached to the outer periphery of the vertical leg 2 via the attachment band 11, even a part of the inclined bottom body 12 is disposed at a position that does not enter the projection plane of the inner dimension (inner diameter if a cylinder) of the vertical leg 2. It is.
This is because, if it is in a state of entering the vertical projection plane of the inner diameter of the vertical leg 2, the portion collides with the head of the pile 3 and the vertical leg 2 cannot be fitted to the pile 3.
However, in some cases, a shear key 21 is attached to the inside of the vertical leg 2, and the shear key 21 protrudes into the internal space of the vertical leg 2. In this case, the above-mentioned “inner diameter” and “inner dimension” of the vertical leg 2 can mean the inner dimension of the shear key 21 and the shear key 21.
Therefore, the “inner diameter” of the vertical leg 2 means a substantial inner diameter.
A step portion 14 is formed on the inclined bottom body 12 on the attachment band 11 side.
The step 14 is formed so that the depth of the step 14 is equal to or less than the thickness of the vertical leg 2 so that the step 14 can receive the weight of the vertical leg 2.

＜４＞水中骨組構造の構成。
次に水中骨組構造の設置方法について説明する。
陸上、その他の設置場所とは別の場所で水中骨組構造を製造する。
この水中骨組構造は、図５に示した従来の構造と同様に、複数本の鉛直脚２の間を水平部材で連結した骨組み構造体である。
鉛直脚２は、事前に水底に打設した杭３の外寸法よりも大きい内寸法の内空断面を備えている。鉛直脚２の断面形状は、円でも矩形でも採用することができる。 <4> Configuration of the underwater framework structure.
Next, the installation method of an underwater frame structure is demonstrated.
Manufacture underwater frame structures on land and other locations.
This underwater frame structure is a frame structure in which a plurality of vertical legs 2 are connected by a horizontal member, similarly to the conventional structure shown in FIG.
The vertical leg 2 is provided with an inner air cross section having an inner dimension larger than the outer dimension of the pile 3 placed in advance on the bottom of the water. The cross section of the vertical leg 2 can be a circle or a rectangle.

＜５＞ガイド部材１の取り付け。
水中骨組構造を水底に下降させる前に、鉛直脚２の下端にガイド部材１を取り付ける。
このガイド部材１は前記したように、鉛直脚２の外形を分割した形状の複数の取り付け帯１１によって構成してあるから、ボルト、ナットによって結合することによって、鉛直脚２の外周に強固に取り付けることができる。
取り付け帯１１の外周には、傾斜底面体１２を取り付けてあり、この傾斜底面体１２は鉛直脚２の内側へ向けて傾斜した底面を備えている。
さらに傾斜底面体１２は、前記したように、鉛直脚２に取り付けた場合にその投影面内に侵入しない形状に形成してある。 <5> Attaching the guide member 1.
The guide member 1 is attached to the lower end of the vertical leg 2 before the underwater frame structure is lowered to the bottom of the water.
As described above, since the guide member 1 is constituted by the plurality of attachment bands 11 having a shape obtained by dividing the outer shape of the vertical leg 2, the guide member 1 is firmly attached to the outer periphery of the vertical leg 2 by being coupled by bolts and nuts. be able to.
An inclined bottom surface body 12 is attached to the outer periphery of the attachment band 11, and the inclined bottom surface body 12 has a bottom surface inclined toward the inside of the vertical leg 2.
Further, as described above, the inclined bottom body 12 is formed in a shape that does not enter the projection plane when attached to the vertical leg 2.

＜６＞水中骨組構造の沈下。
水中骨組構造を製作場所から杭３の打設位置まで曳航し、図５に示す従来の方法と同様の方法によってクレーンによって水底に向けて沈下させる。
沈下位置に多少の誤差があったり、あるいは海上の波浪の影響で水中骨組構造の姿勢が不安定であって、水中骨組構造の鉛直脚２の下端が杭３の頭部に当ってしまう場合がある（図２）。
その場合にも吊り下げ状態の水中骨組構造は、鉛直脚２下端のガイド部材１の傾斜底面によって鉛直脚２の中心が杭３の中心方向に移動する。
したがって、自動的な求心作用によって簡単に杭３の頭部に嵌合させることができる（図３）。 <6> Subsidence of underwater framework structure.
The underwater frame structure is towed from the production site to the placement position of the pile 3, and is submerged toward the bottom of the water by a crane by a method similar to the conventional method shown in FIG.
There is a case where there is some error in the subsidence position, or the posture of the underwater frame structure is unstable due to the influence of ocean waves, and the lower end of the vertical leg 2 of the underwater frame structure hits the head of the pile 3. Yes (Figure 2).
Even in this case, in the suspended underwater frame structure, the center of the vertical leg 2 moves toward the center of the pile 3 by the inclined bottom surface of the guide member 1 at the lower end of the vertical leg 2.
Therefore, it can be easily fitted to the head of the pile 3 by an automatic centripetal action (FIG. 3).

＜７＞ガイド部材１の取り外し。
ガイド部材１は、水中骨組構造の鉛直脚２を杭３の頭部に嵌合させる瞬間に必要なだけの仮の部材であり、両者が嵌合した後には不用である。
そこで、水中の作業員によって取り付け帯１１のボルトを解体し、水上からワイヤー４で引き上げて回収する。
回収したガイド部材１は、転用して再度使用することができる。 <7> Removal of the guide member 1.
The guide member 1 is a temporary member only necessary at the moment when the vertical leg 2 of the underwater frame structure is fitted to the head of the pile 3, and is unnecessary after the two are fitted.
Then, the bolt of the attachment band 11 is disassembled by an underwater worker, and is pulled up by the wire 4 from the water and collected.
The collected guide member 1 can be diverted and used again.

＜８＞脚と杭３の固定。
鉛直脚２を杭３の外周に嵌合設置した後、場合によっては鉛直脚２と杭３とをモルタルなどの固化材で一体化する（図４）。
そのために、鉛直脚２の底部を杭３の頭部とを底袋５や底型枠を設置する。
そして水上からの注入パイプ５１を介して、杭３の頭部と鉛直脚２の下端付近にモルタル５２などを注入して固化させ、両者を固定する。 <8> Fixing the leg and the pile 3.
After fitting the vertical leg 2 to the outer periphery of the pile 3, the vertical leg 2 and the pile 3 may be integrated with a solidifying material such as mortar in some cases (FIG. 4).
For this purpose, the bottom bag 5 and the bottom formwork are installed with the bottom of the vertical leg 2 and the head of the pile 3.
And the mortar 52 etc. are inject | poured and solidified near the lower end of the head of the pile 3 and the vertical leg 2 via the injection pipe 51 from the water, and both are fixed.

＜９＞他の実施例。
以上の構成は、ガイド部材１を鉛直脚２の下端に取り付けた構成を示している。
しかし中空の杭３を使用し、この中空の杭３の内部に鉛直脚２を挿入するような構成の場合には、ガイド部材１を杭３の頭部側に取り付けておけば同様の効果を期待することができる（図５）。
<9> Other embodiments.
The above configuration shows a configuration in which the guide member 1 is attached to the lower end of the vertical leg 2.
However, if a hollow pile 3 is used and the vertical leg 2 is inserted into the hollow pile 3, the same effect can be obtained if the guide member 1 is attached to the head side of the pile 3. We can expect (Fig. 5).

本発明の水中骨組構造の設置部材の実施例の説明図Explanatory drawing of the Example of the installation member of the underwater frame structure of this invention 水中骨組構造の設置状態の実施例の説明図Explanatory drawing of the Example of the installation state of an underwater frame structure 水中骨組構造の設置状態の実施例の説明図Explanatory drawing of the Example of the installation state of an underwater frame structure 水中骨組構造の設置状態の実施例の説明図Explanatory drawing of the Example of the installation state of an underwater frame structure 他の実施例の説明図Illustration of another embodiment 従来の水中骨組構造の設置状態の実施例の説明図Explanatory drawing of the Example of the installation state of the conventional underwater frame structure

符号の説明Explanation of symbols

１：ガイド部材
２：鉛直脚
３：杭
４：ワイヤ 1: Guide member 2: Vertical leg 3: Pile 4: Wire

Claims (3)

水底に打設した杭の外寸法よりも大きい内寸法の鉛直脚を備えた水中骨組構造を水底に設置する方法であって、
鉛直脚の下端には、
鉛直脚の内側へ向けて傾斜した底面を備え、
かつ底面は鉛直脚の内側の鉛直投影面内に侵入しない形状に形成したガイド部材を、取り外し自在に取り付け、
水中骨組構造を水底に下降する際に鉛直脚の下端が杭の頭部に当接した場合には、
吊り下げ状態の水中骨組構造の鉛直脚下端のガイド部材の傾斜底面によって鉛直脚の中心が杭の中心方向に移動するように構成し、
鉛直脚を杭の外周に設置した後、
ガイド部材を鉛直脚下端から取り外して行う、
水中骨組構造の設置方法。
A method of installing an underwater frame structure with a vertical leg with an inner dimension larger than the outer dimension of a pile placed on the bottom of the water,
At the bottom of the vertical leg,
It has a bottom that is inclined toward the inside of the vertical leg,
And the bottom surface is a guide member formed in a shape that does not enter the vertical projection plane inside the vertical leg, and is detachably attached.
When the lower end of the vertical leg touches the head of the pile when descending the underwater frame structure to the bottom of the water,
The center of the vertical leg is configured to move toward the center of the pile by the inclined bottom surface of the guide member at the lower end of the vertical leg of the suspended underwater frame structure,
After installing the vertical leg on the outer periphery of the pile,
Remove the guide member from the bottom of the vertical leg,
Installation method of underwater frame structure.
水底に打設した杭の外寸法よりも大きい内寸法の鉛直脚を備えた水中骨組構造を水底に設置する方法であって、
鉛直脚の下端には、
鉛直脚の内側へ向けて傾斜した底面を備え、
かつ底面は鉛直脚の内側の鉛直投影面内に侵入しない形状に形成したガイド部材を、取り外し自在に取り付け、
水中骨組構造を水底に下降する際に鉛直脚の下端が杭の頭部に当接した場合には、
吊り下げ状態の水中骨組構造の鉛直脚下端のガイド部材の傾斜底面によって鉛直脚の中心が杭の中心方向に移動するように構成し、
鉛直脚を杭の外周に嵌合設置した後、
ガイド部材を鉛直脚下端から取り外し、
その後に杭の頭部と鉛直脚の下端付近に固化材を注入して行う、
水中骨組構造の設置方法。
A method of installing an underwater frame structure with a vertical leg with an inner dimension larger than the outer dimension of a pile placed on the bottom of the water,
At the bottom of the vertical leg,
It has a bottom that is inclined toward the inside of the vertical leg,
And the bottom is attached to the guide member formed in a shape that does not enter the vertical projection plane inside the vertical leg, and is detachable,
When the lower end of the vertical leg touches the head of the pile when descending the underwater framework structure to the bottom of the water,
The center of the vertical leg is configured to move toward the center of the pile by the inclined bottom surface of the guide member at the lower end of the vertical leg of the suspended underwater frame structure,
After fitting the vertical leg to the outer periphery of the pile,
Remove the guide member from the bottom of the vertical leg,
After that, inject solidification material near the bottom of the pile head and vertical leg,
Installation method of underwater frame structure.
水中骨組構造の鉛直脚の下端に取り付ける部材であって、
鉛直脚の外周に取り付け、取り外し自在の取り付け帯と、
この取り付け帯の周囲に複数個とりつけたガイド部材とよりなり、
ガイド部材は、取り付け帯を介して鉛直脚に取り付けた場合に、鉛直脚の内側へ向けて傾斜した底面を備え、
かつ底面は鉛直脚の内側の鉛直投影面内に侵入しない位置に配置してある、
水中骨組構造の設置部材。

A member attached to the lower end of the vertical leg of the underwater frame structure,
Attached to the outer periphery of the vertical leg, a removable attachment band,
It consists of a guide member attached around the mounting band,
The guide member has a bottom surface that is inclined toward the inside of the vertical leg when attached to the vertical leg via the attachment band,
And the bottom is arranged at a position that does not enter the vertical projection plane inside the vertical leg,
Installation member with underwater frame structure.

JP2004041596A 2004-02-18 2004-02-18 Method and member for installing underwater framework structure Pending JP2005232747A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100761741B1 (en) 2006-07-03 2007-09-28 재단법인 포항산업과학연구원 Bridge footing system for accelerated bridge construction and construction method of bridge with the same system
JP2013217091A (en) * 2012-04-09 2013-10-24 Geostr Corp Precast block to be foundation of tide embankment
US9494131B2 (en) 2007-08-29 2016-11-15 Vestas Wind Systems A/S Monopile foundation for offshore wind turbine
JP2021130983A (en) * 2020-02-20 2021-09-09 Ｊｆｅエンジニアリング株式会社 Jacket type structure and construction method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100761741B1 (en) 2006-07-03 2007-09-28 재단법인 포항산업과학연구원 Bridge footing system for accelerated bridge construction and construction method of bridge with the same system
US9494131B2 (en) 2007-08-29 2016-11-15 Vestas Wind Systems A/S Monopile foundation for offshore wind turbine
JP2013217091A (en) * 2012-04-09 2013-10-24 Geostr Corp Precast block to be foundation of tide embankment
JP2021130983A (en) * 2020-02-20 2021-09-09 Ｊｆｅエンジニアリング株式会社 Jacket type structure and construction method thereof
JP7354872B2 (en) 2020-02-20 2023-10-03 Ｊｆｅエンジニアリング株式会社 Jacketed structure and its construction method

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