JP4190112B2 - Construction method of hand-drawn pier - Google Patents

Construction method of hand-drawn pier Download PDF

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Publication number
JP4190112B2
JP4190112B2 JP31100599A JP31100599A JP4190112B2 JP 4190112 B2 JP4190112 B2 JP 4190112B2 JP 31100599 A JP31100599 A JP 31100599A JP 31100599 A JP31100599 A JP 31100599A JP 4190112 B2 JP4190112 B2 JP 4190112B2
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Prior art keywords
girder
pile
pier
hand
guide
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JP2001131938A (en
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正義 松木田
裕紀 深沢
雅喜 高久
裕史 武居
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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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Description

【０００１】
【発明の属する技術分野】
本発明は桟橋の構築方法に関するものである。
【０００２】
【従来の技術】
従来の水上に桟橋を構築する場合には、桟橋の基礎となる杭を杭打船で水底に打設した後、この杭に橋桁や床版を設置して桟橋を構築していた。
また陸上では、手延桁と称する桟橋の延長方向に配置した仮設の部材をガイドとして杭を打設した後、この杭に橋桁や床版を設置して桟橋を構築していた。
【０００３】
【発明が解決しようとする課題】
前記したような従来の手延式桟橋の構築方法は次のような問題を備えていた。
＜イ＞水上に桟橋を構築する場合には、杭打船や自己昇降式足場を利用して杭を打設する。そのために波浪や潮位の状況によって施工が妨げられることが多く、工程が不安定であった。
また、水深の浅い所や、沖からの波浪が破砕する海域では杭打船などの作業船の停泊が不可能であるために船を使用した構築を行うことができない。
＜ロ＞また杭打船は波浪による船体の揺動を避けることができないから、精密な杭の打設位置の設定や、安全作業が困難である。
＜ハ＞地上に桟橋を構築する方法では、桟橋下部の結構作業に時間を要するとともに、下方での作業が多くなることから、高所作業、足場の設置などの点で安全面で問題があった。
＜ニ＞桟橋を設置する地盤が岩盤である場合には、事前に削孔を行い、その孔に杭を建て込んでグラウト注入による根固めを行う必要がある。
このような事前掘削のための特別なガイドや、ケーシングパイプの段取り、根固め作業などによって施工費用が上昇することになる。
【０００４】
【本発明の目的】
本発明は上記のような問題を改善するためになされたもので、海上では波浪や潮位の影響を受けずに桟橋を構築することができる、手延式桟橋の構築方法を提供することを目的とする。
また本発明は、陸上では桟橋を支える下部の結構作業を簡略化して安全に構築することができる、手延式桟橋の構築方法を提供することを目的とする。
【０００５】
【課題を解決するための手段】
上記のような目的を達成するために本発明の手延式桟橋の構築方法は、桟橋の延長方向に配置したクレーン走行桁と、その両側に、桟橋の延長方向に、クレーン走行桁に沿って桟橋の延長方向にスライド可能な手延桁と、手延桁の延長方向の前方に鉛直方向に向けて、ネジ鋼棒によって取り付けたガイド用鋼管とより構成し、ガイド用鋼管内に挿入した杭を、クレーン走行桁上の杭打機によって打設し、杭の打設後にはガイド用鋼管を杭に沿って下降させ、杭とガイド用鋼管を一体化し、新たに打設した杭の頭部に、桟橋の延長方向を横断する方向に、新たな杭頭横断桁を設置し、新たな杭頭横断桁の上に、新たなクレーン走行桁を設置し、手延桁を前進させて、その先端を新たな杭頭横断桁よりも前方に突出させ、その手延桁の前方に新たなガイド用鋼管を取り付けて行う、手延式桟橋の構築方法である。
【０００６】
【発明の実施の形態】
以下図面にもとづいて本発明の一実施例を説明する。
【０００７】
＜イ＞クレーン走行桁。
まず桟橋を構築する装置の構成を説明すると、この装置は基本的にはクレーン走行桁１と手延桁２によって構成する。
クレーン走行桁１は、構築すべき桟橋の延長方向に配置する鋼材の桁であり、後述する基礎杭４の間隔との関係では、延長方向に打設した基礎杭４と基礎杭４の間隔に相当する長さを備えていればたりる。
このクレーン走行桁１を、桟橋の延長方向に向けて、２本平行に配置し、その上に杭打機６などを搭載して移動させる。
【０００８】
＜ロ＞手延桁２。
平行に配置した２本のクレーン走行桁１の外側には各々、手延桁２と称する長い桁をスライド自在に取り付ける。
この手延桁２も鋼材の桁であり、後述する基礎杭４の間隔との関係では、延長方向に打設した複数本の基礎杭４の間隔にまたがる長さを備えている。
手延桁２を前方に向けてスライドさせるには、例えばクレーン走行桁１に搭載した杭打機６と手延桁２を連結する。そして杭打機６を前進させれば、手延桁２は桟橋の延長方向にクレーン走行桁１に沿ってスライド可能である。
【０００９】
＜ハ＞ガイド用鋼管５。
各手延桁２の延長方向の前方にはガイド用鋼管５を鉛直方向に向けて取り付ける。
このガイド用鋼管５は長さが基礎杭４に比較して短い中空のパイプ体である。
そして両側のガイド用鋼管５は、桟橋の延長方向と横断する方向の枠体５１によって一体に連結する。
ガイド用鋼管５は手延桁２に強固に取り付けるものではなく、ネジ鋼棒によって簡単に取り外しが可能な状態で取り付ける。
さらに手延桁２には、ガイド用鋼管５の取り付け位置とは別の位置に調整ジャッキ５２の一端を取り付け、この調整ジャッキ５２の他端をガイド用鋼管５に取り付ける。
こうすると調整ジャッキ５２の伸縮によって、ガイド用鋼管５の鉛直性を確保することができる。
【００１０】
＜ニ＞施工方法の説明。
次に施工方法について、以下の状態にある桟橋において説明する。
一定間隔で両側に平行に打設した基礎杭４の上には、桟橋の横断方向に杭頭横断桁３が固定してあり、横断桁３の上には桟橋の延長方向に向けて２本のクレーン走行桁１が平行に固定してある。クレーン走行桁１の上には杭打機６を配置してある。
クレーン走行桁１の外側には手延桁２が配置してある。
【００１１】
＜ホ＞基礎杭４の打設。
クレーン走行桁１の上に配置した杭打機６で基礎杭４を吊り上げ、手延桁２の先端のガイド用鋼管５内に挿入する。
この基礎杭４を杭打機６のバイブロハンマーなど公知の手段によって打設する。
前記したように調整ジャッキ５２の伸縮によってガイド用鋼管５の鉛直性、あるいは打設角度を確保することができるから、測量によって精度を確保しながらガイド用鋼管５をガイドとして正確な角度で基礎杭４を打設することができる。
なお、最終の打ち込みは油圧ハンマーによって行い、支持力を確認することもできる。
【００１２】
＜ヘ＞岩盤への基礎杭４打ち。
岩盤では直接基礎杭４を打設できない場合がある。
その場合には基礎杭４打ち前に、杭打機６に取り付けたオーガーによって事前削孔しておく方法、あるいはウォータージェットを装備したダミー杭をバイブロハンマーで打設して事前削孔しておく方法を採用することもできる。
この事前削孔作業も、ガイド用鋼管５をガイドとして使用して行うことができるから、打設方向は正確である。
あるいは基礎杭４を盤面に立てておき、その基礎杭４の内部に削孔装置を挿入し、基礎杭４をガイドとして先行削孔することもできる。
あるいは先行削孔に際して、削孔する直径を基礎杭４の外径よりも小さい直径で行い、基礎杭４の外周の地盤を乱さないで行えば、基礎杭４の打設後の根固めグラウトが不要となる。
【００１３】
＜ト＞鋼管の下降。
打設が終了したらガイド用鋼管５をいったん、杭打機６で吊っておく。
その状態で調節ジャッキ５２を取り外し、ネジ鋼棒５３で吊り直すことで手延桁２から分離する。
そしてネジ鋼棒５３を延長することによって、両側の基礎杭４をガイドとして所定の位置までガイド用鋼管５を下降することができる。
所定の位置まで下降したガイド用鋼管５は基礎杭４に仮固定する。
鋼管を基礎杭４に仮固定するには例えば基礎杭４の側面から固定金物を突出させて行うことができる。
【００１４】
＜チ＞鋼管と基礎杭４の一体化。
所定の位置に仮固定したガイド用鋼管５と基礎杭４の間にグラウトを注入して両者を一体化する。
グラウトが両者の間隔から流出しないように、ガイド用鋼管５の下部に鉄板を溶接したり、ゴムシールを取り付ける。
こうして両側の基礎杭４の下部の間を強固に連結して結構作業を完了することができる。
【００１５】
＜リ＞横断桁の設置。
新たに打設し、下部を強固に連結した両側の基礎杭４の頭部に、杭頭横断桁３を設置して溶接する。
この杭頭横断桁３は、両側の基礎杭４の間隔よりも長く形成した鋼製の桁である。
両側の基礎杭４の頭部に設置することから、杭頭横断桁３は、桟橋の延長方向を横断する方向に設置することになる。
杭打機６を使用して、新たに設置した杭頭横断桁３の上に、直交方向に新たなクレーン走行桁１を設置する。
【００１６】
＜ヌ＞手延桁２の前進。
横断桁３の設置が終わったら、手延桁２を連結器などを介してで杭打機６に連結する。
そして杭打機６を前進させれば、手延桁２を前進させることができる。
手延桁２はすでに配置してある横断桁３の上をスライドすることになるが、横断桁３には延長方向に平行なガイド板を複数個所に突設しておくことによって外側への転倒や外れを阻止することができる。
このガイド板はスライドが終了したら手延桁２にボルト止めして安定を図る。
手延桁２が前進することによってその先端は新たな杭頭横断桁３の上を乗り越え、その先端は新たな杭頭横断桁３よりも前方に突出させることができる。
こうして突出した手延桁２の前方に新たなガイド用鋼管５を取り付け、前記した作業を繰り返して桟橋を延長してゆく。
後方に荷役クレーンを設置しておき、このクレーンで鋼床板の敷設、あるいは鉄筋コンクリート、プレキャスト工を行う。
【００１７】
＜ル＞他の実施例。
以上は２本のガイド用鋼管５を使用する構成であったが、２本以上の複数本のガイド用鋼管５を使用することもできる。
また杭頭横断桁３として、その両端に斜め方向のガイド用鋼管を取り付けた桁を使用し、この斜めガイド用鋼管をガイドとして斜基礎杭４を打設することができる。
すると両側に、外側に広がった斜杭を設置した構造の桟橋を構築することができる。
【００１８】
【発明の効果】
本発明は上記したようになるから、次のような効果を達成することができる。
＜イ＞海上での工事の場合に、波浪や潮位の影響を受けることがない。そのために計画的、かつ短期間で桟橋を構築することができる。
＜ロ＞安定した桟橋上での作業となるので、精密な杭打ち作業を安全確実に実施することができる。
＜ハ＞先端に設けたガイド用鋼管５をガイドとして基礎杭４を打設するので、基礎杭４の打設角度を正確に維持することができ、精度が大きく向上する。
＜ニ＞杭打ちのガイドとして利用したガイド用鋼管５を、基礎杭４に沿って下降して固定するだけで下部の結構作業を完成できる。したがって迅速で安全な作業によって基礎杭４群を強固に支持することができる。
＜ホ＞基礎杭４を岩盤に打設する場合に、グラウト根固め工程が不要となり、コストの削減、工期の短縮を達成できる。
【図面の簡単な説明】
【図１】手延式桟橋の構築状態の正面図。
【図２】その側面図。
【図３】施行順序の説明図。
【図４】施行順序の説明図。
【図５】施行順序の説明図。
【図６】施行順序の説明図。
【図７】施行順序の説明図。
【図８】施行順序の説明図。
【図９】施行順序の説明図。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pier construction method.
[0002]
[Prior art]
In the case of building a jetty on the conventional water, a pile that forms the foundation of the jetty was placed on the bottom of the water with a pile driving ship, and then a bridge girder and floor slab were installed on the pile to construct the jetty.
On land, a pier was constructed by placing piles and floor slabs on this pile after placing a pile using temporary members arranged in the extension direction of the pier called a manual girder as a guide.
[0003]
[Problems to be solved by the invention]
The conventional method for constructing a hand-drawn pier as described above has the following problems.
<I> When building a pier on the water, piles are laid using a pile driving ship or a self-lifting scaffold. For this reason, construction was often hindered by wave and tide conditions, and the process was unstable.
In addition, it is impossible to construct a ship using a ship because it is impossible to anchor a working ship such as a pile driving ship in a shallow water area or in a sea area where waves from offshore are crushed.
<B> In addition, since a pile driving ship cannot avoid the rocking of the hull due to waves, it is difficult to set a precise setting position of the pile and to perform safety work.
<C> The method of building a jetty on the ground requires time for the work at the bottom of the jetty and requires a lot of work at the bottom, so there are problems in terms of safety in terms of work at high places and installation of scaffolding. It was.
<D> If the ground on which the pier is installed is rock, it is necessary to drill holes in advance, build a pile in the hole, and solidify by grouting.
The construction cost increases due to such special guides for pre-digging, setup of casing pipes, and solidification work.
[0004]
[Object of the present invention]
The present invention was made to improve the above problems, and an object thereof is to provide a construction method of a hand-drawn pier that can build a pier without being affected by waves and tides at sea. And
Another object of the present invention is to provide a construction method of a hand-drawn pier that can be safely constructed by simplifying the construction work of the lower part that supports the pier on land.
[0005]
[Means for Solving the Problems]
In order to achieve the above-described object, the construction method of the hand-drawn pier according to the present invention includes a crane traveling girder arranged in the extending direction of the pier, and on both sides of the traveling girder in the extending direction of the pier along the crane traveling girder. A pile made up of a guide girder slidable in the extension direction of the pier and a guide steel pipe attached with a threaded steel rod in the vertical direction in front of the extension direction of the guide girder, and inserted into the guide steel pipe Is driven by a pile driving machine on a crane traveling girder, and after the pile is driven , the guide steel pipe is lowered along the pile, the pile and the guide steel pipe are integrated, and the head of the newly driven pile In addition, a new pile head crossing girder is installed in the direction crossing the extension direction of the pier, a new crane traveling girder is installed on the new pile head crossing girder, and the hand girder is advanced. The tip protrudes ahead of the new pile head crossing girder, and new in front of the hand girder Performing the guiding steel attached, a method of constructing Tenobeshiki pier.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings.
[0007]
<A> Crane traveling girder.
First, the structure of the apparatus for constructing the pier will be described. This apparatus is basically composed of a crane traveling girder 1 and a manual girder 2.
The crane traveling girder 1 is a steel girder arranged in the extending direction of the pier to be constructed. In relation to the interval between the foundation piles 4 to be described later, the distance between the foundation pile 4 and the foundation pile 4 placed in the extending direction is as follows. If you have a corresponding length.
Two crane traveling girders 1 are arranged in parallel in the extending direction of the jetty, and a pile driving machine 6 or the like is mounted thereon and moved.
[0008]
<B> Hand girder 2.
A long girder called a manual girder 2 is slidably attached to the outside of the two crane traveling girders 1 arranged in parallel.
The hand girders 2 are also steel girders, and have a length that spans the intervals of a plurality of foundation piles 4 placed in the extending direction in relation to the intervals of the foundation piles 4 described later.
In order to slide the hand girder 2 forward, for example, the pile driving machine 6 mounted on the crane traveling girder 1 and the hand girder 2 are connected. And if the pile driving machine 6 is advanced, the hand girder 2 can slide along the crane traveling girder 1 in the extension direction of the pier.
[0009]
<C> Guide steel pipe 5.
A guide steel pipe 5 is attached in the vertical direction in front of each extension girder 2 in the extending direction.
The guide steel pipe 5 is a hollow pipe body having a length shorter than that of the foundation pile 4.
The guide steel pipes 5 on both sides are integrally connected by a frame body 51 in a direction crossing the extending direction of the pier.
The guide steel pipe 5 is not firmly attached to the hand girders 2 but is attached in a state where it can be easily removed by a threaded steel bar.
Furthermore, one end of the adjustment jack 52 is attached to the manual girder 2 at a position different from the attachment position of the guide steel pipe 5, and the other end of the adjustment jack 52 is attached to the guide steel pipe 5.
In this way, the verticality of the guide steel pipe 5 can be ensured by the expansion and contraction of the adjustment jack 52.
[0010]
<D> Explanation of construction method.
Next, the construction method will be described in the pier in the following state.
A pile head crossing girder 3 is fixed in the crossing direction of the pier on the foundation pile 4 that is driven in parallel at both sides at regular intervals, and two pieces are placed on the crossing girder 3 in the extending direction of the pier. The crane traveling beam 1 is fixed in parallel. A pile driver 6 is arranged on the crane traveling beam 1.
On the outside of the crane traveling girder 1, a manual girder 2 is arranged.
[0011]
<E> Placement of foundation pile 4
The foundation pile 4 is lifted by a pile driving machine 6 disposed on the crane traveling girder 1 and inserted into the guide steel pipe 5 at the tip of the hand-grown girder 2.
The foundation pile 4 is driven by a known means such as a vibro hammer of the pile driving machine 6.
As described above, the verticality of the guide steel pipe 5 or the placement angle can be ensured by the expansion and contraction of the adjustment jack 52. Therefore, the foundation pile is formed at an accurate angle using the guide steel pipe 5 as a guide while ensuring accuracy by surveying. 4 can be placed.
The final driving can be performed with a hydraulic hammer to check the supporting force.
[0012]
<F> 4 piles of foundation piles to bedrock.
In some cases, the foundation pile 4 cannot be placed directly on the bedrock.
In that case, before the foundation pile 4 is driven, a method of pre-drilling with an auger attached to the pile driving machine 6 or a dummy pile equipped with a water jet is driven with a vibro hammer and pre-drilled. The method can also be adopted.
Since this pre-drilling operation can also be performed using the guide steel pipe 5 as a guide, the placing direction is accurate.
Alternatively, the foundation pile 4 can be erected on the board surface, a drilling device can be inserted into the foundation pile 4, and the foundation pile 4 can be used as a guide to make a previous drilling.
Alternatively, in the case of preceding drilling, if the diameter to be drilled is smaller than the outer diameter of the foundation pile 4 and the ground on the outer periphery of the foundation pile 4 is not disturbed, the rooting grout after placement of the foundation pile 4 can be obtained. It becomes unnecessary.
[0013]
<G> Lowering of the steel pipe.
When the placement is finished, the guide steel pipe 5 is once suspended by the pile driving machine 6.
In this state, the adjustment jack 52 is removed, and it is separated from the hand girder 2 by suspending it with the threaded steel rod 53.
By extending the threaded steel rod 53, the guide steel pipe 5 can be lowered to a predetermined position using the foundation piles 4 on both sides as guides.
The guide steel pipe 5 lowered to a predetermined position is temporarily fixed to the foundation pile 4.
In order to temporarily fix the steel pipe to the foundation pile 4, for example, a fixed hardware can be projected from the side surface of the foundation pile 4.
[0014]
<H> Integration of steel pipe and foundation pile 4.
A grout is injected between the guide steel pipe 5 and the foundation pile 4 temporarily fixed at a predetermined position to integrate both.
An iron plate is welded to the lower part of the guide steel pipe 5 or a rubber seal is attached so that the grout does not flow out from the gap between the two.
Thus, the lower part of the foundation piles 4 on both sides can be firmly connected to complete the work.
[0015]
<Re> Installation of crossing girders.
The pile head crossing girder 3 is installed and welded to the heads of the foundation piles 4 on both sides which are newly placed and firmly connected at the lower part.
This pile head crossing girder 3 is a steel girder formed longer than the interval between the foundation piles 4 on both sides.
Since it installs in the head of the foundation pile 4 of both sides, the pile head crossing girder 3 will be installed in the direction which crosses the extension direction of a pier.
A new crane traveling girder 1 is installed in the orthogonal direction on the newly installed pile head crossing girder 3 using the pile driving machine 6.
[0016]
<Nu> Advance the hand girder 2.
When the installation of the crossing girder 3 is finished, the manual girder 2 is connected to the pile driving machine 6 via a coupler or the like.
And if the pile driving machine 6 is advanced, the manual girder 2 can be advanced.
The hand girder 2 slides on the crossing girder 3 which has already been arranged, but the crossing girder 3 falls outward by projecting a plurality of guide plates parallel to the extending direction. Can be prevented.
When the slide is finished, this guide plate is bolted to the manual extension girder 2 for stability.
As the hand girder 2 moves forward, its tip can ride over the new pile head crossing girder 3, and its tip can protrude forward from the new pile head crossing girder 3.
A new guide steel pipe 5 is attached in front of the protruding girder 2 protruding in this manner, and the pier is extended by repeating the above-described operation.
A cargo handling crane is installed at the rear, and steel cranes are laid, or reinforced concrete and precast are used with this crane.
[0017]
<Le> Other embodiments.
The above is a configuration in which two guide steel pipes 5 are used, but two or more guide steel pipes 5 can also be used.
Further, as the pile head crossing girder 3, a girder having a steel pipe for oblique guide attached to both ends thereof can be used, and the diagonal foundation pile 4 can be driven using the steel pipe for oblique guide as a guide.
Then, on both sides, a pier with a structure with diagonal piles spreading outwards can be constructed.
[0018]
【The invention's effect】
Since the present invention is as described above, the following effects can be achieved.
<A> In the case of construction at sea, it is not affected by waves or tide levels. Therefore, the jetty can be constructed in a planned and short time.
<B> Since the work is performed on a stable pier, precise pile driving work can be carried out safely and reliably.
<C> Since the foundation pile 4 is driven using the guide steel pipe 5 provided at the tip as a guide, the setting angle of the foundation pile 4 can be accurately maintained, and the accuracy is greatly improved.
<D> Just by lowering and fixing the guide steel pipe 5 used as a guide for pile driving along the foundation pile 4, the lower part can be completed. Therefore, the foundation pile 4 group can be firmly supported by quick and safe work.
<E> When the foundation pile 4 is placed on the bedrock, the grout consolidation process is not required, and the cost can be reduced and the construction period can be shortened.
[Brief description of the drawings]
FIG. 1 is a front view of a hand-drawn pier constructed.
FIG. 2 is a side view thereof.
FIG. 3 is an explanatory diagram of an enforcement order.
FIG. 4 is an explanatory diagram of an enforcement order.
FIG. 5 is an explanatory diagram of an enforcement order.
FIG. 6 is an explanatory diagram of an enforcement order.
FIG. 7 is an explanatory diagram of an enforcement order.
FIG. 8 is an explanatory diagram of an enforcement order.
FIG. 9 is an explanatory diagram of an enforcement order.

Claims (3)

桟橋の延長方向に配置したクレーン走行桁と、
その両側に、桟橋の延長方向に、クレーン走行桁に沿って桟橋の延長方向にスライド可能な手延桁と、
手延桁の延長方向の前方に鉛直方向に向けて、ネジ鋼棒によって取り付けたガイド用鋼管とより構成し、
ガイド用鋼管内に挿入した杭を、クレーン走行桁上の杭打機によって打設し、
杭の打設後にはガイド用鋼管を杭に沿って下降させ、
杭とガイド用鋼管を一体化し、
新たに打設した杭の頭部に、桟橋の延長方向を横断する方向に、新たな杭頭横断桁を設置し、
新たな杭頭横断桁の上に、新たなクレーン走行桁を設置し、
手延桁を前進させて、その先端を新たな杭頭横断桁よりも前方に突出させ、
その手延桁の前方に新たなガイド用鋼管を取り付けて行う、
手延式桟橋の構築方法。Crane traveling girder arranged in the extension direction of the pier,
On both sides, a hand girder that can slide in the extension direction of the pier, along the crane traveling girder in the extension direction of the pier,
It consists of a steel pipe for guides attached with a threaded steel rod in the vertical direction forward of the extension direction of the hand girder,
The pile inserted in the guide steel pipe is driven by a pile driver on the crane traveling beam,
After placing the pile, lower the guide steel pipe along the pile,
Integrate piles and guide steel pipes,
A new pile head crossing girder is installed in the direction of crossing the extension direction of the pier on the head of the newly piled pile,
Install a new crane traveling girder on the new pile head crossing girder,
Advance the hand girder and make its tip protrude more forward than the new pile head crossing girder,
Install a new guide steel pipe in front of the hand girder,
How to construct a hand-drawn pier. ガイド用鋼管は、手延桁の前方に二本以上を取り付け、
かつ両ガイド用鋼管は、桟橋の延長方向と横断する方向の枠材によって接続する、
請求項１記載の手延式桟橋の構築方法。At least two guide pipes are installed in front of the hand girders.
And the guide for the steel pipe is connected by the direction of the frame member to cross the extending direction of the pier,
The construction method of the hand-drawn pier according to claim 1. ガイド用鋼管をガイドとして、ジェット装置を下降させて地盤に削孔し、
削孔後の孔内に杭を打設する、
請求項１、２記載の手延式桟橋の構築方法。Using the guide steel pipe as a guide, lower the jet device to drill holes in the ground,
Pile a pile in the hole after drilling,
The construction method of the hand-drawn type jetty according to claim 1 or 2.
JP31100599A 1999-11-01 1999-11-01 Construction method of hand-drawn pier Expired - Fee Related JP4190112B2 (en)

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KR101192052B1 (en) 2011-01-18 2012-10-17 주식회사 벤트코리아 Method for constructing temporary bridge using movable boxgirder
JP6387321B2 (en) * 2015-04-14 2018-09-05 新日鉄住金エンジニアリング株式会社 How to build a bridge
JP6007307B1 (en) * 2015-12-21 2016-10-12 株式会社横山基礎工事 How to build a bridge
KR101744437B1 (en) * 2016-02-23 2017-06-07 이종란 Construction method of temporary bridge using camber
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CN115262362A (en) * 2022-07-26 2022-11-01 中国港湾工程有限责任公司 Full-hall type steel trestle and construction method thereof
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