JP3536033B2 - Steel pipe pile press-in and pull-out machine - Google Patents
Steel pipe pile press-in and pull-out machineInfo
- Publication number
- JP3536033B2 JP3536033B2 JP2001081955A JP2001081955A JP3536033B2 JP 3536033 B2 JP3536033 B2 JP 3536033B2 JP 2001081955 A JP2001081955 A JP 2001081955A JP 2001081955 A JP2001081955 A JP 2001081955A JP 3536033 B2 JP3536033 B2 JP 3536033B2
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- pipe pile
- gripping device
- press
- reaction force
- 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.)
- Expired - Fee Related
Links
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は既設の鋼管杭上に定
置して該鋼管杭の反力に基づいて新たな鋼管杭を地盤内
に圧入，引抜するとともに、連続して圧入引抜される鋼
管杭の圧入引抜ピッチの変更に対応し、更に圧入時の抵
抗力によって浮き上がった既設鋼管杭による圧入引抜機
本体の傾斜姿勢を修正して、その浮き上がった分だけ建
込用の鋼管杭を既設の鋼管杭の上端部よりも下方に下降
させることを可能にした静荷重型鋼管杭圧入引抜機に関
するものである。TECHNICAL FIELD The present invention relates to a steel pipe which is placed on an existing steel pipe pile, and a new steel pipe pile is press-fitted into and pulled out of the ground based on a reaction force of the steel pipe pile, and is continuously press-fitted and withdrawn. Corresponding to the change of the press-in / pull-out pitch of the piles, the tilting posture of the press-in / pull-out machine main body due to the existing steel pipe piles that floated due to the resistance force during press-fitting was corrected, and the steel pipe piles for erection were installed by the amount of the floating. The present invention relates to a static load type steel pipe pile press-fitting / extracting machine that can be lowered below the upper end portion of the steel pipe pile.
【０００２】[0002]
【従来の技術】近年、各種の土木基礎工事において、鋼
管杭，例えば鋼管単杭とか鋼管矢板は大きな支持力が得
られるとともに経済性に優れているため、永久構造物の
外にも護岸工事及び山留め工事、締切り工事等の仮設工
事の支持杭として広く採用されている。従来からこれら
の鋼管杭の地盤への圧入，引抜工事は、例えば上空制限
のない場所ではバイブロハンマとかディーゼルハンマも
しくは中堀式などの工法や、静荷重型鋼管杭圧入機が用
いられており、また、上空制限のある場所では主として
静荷重型鋼管杭圧入引抜機が採用されている。2. Description of the Related Art In recent years, steel pipe piles, such as steel pipe single piles or steel pipe sheet piles, have a large bearing capacity and are economically effective in various types of civil engineering foundation works. It is widely used as a support pile for temporary work such as mountain retaining work and closing work. Conventionally, for the press-fitting and pulling-out work of these steel pipe piles to the ground, for example, in a place where there is no sky restriction, a method such as a vibro hammer, a diesel hammer or a Nakabori type, or a static load type steel pipe pile press-fitting machine is used. Static load type steel pipe pile press-in / pull-out machines are mainly used in places where there are restrictions on the sky.
【０００３】この静荷重型鋼管杭圧入引抜機としては、
実公平６−２１９６２号に示すように、既設の鋼管杭上
に定置された台座の下方に複数の反力掴み装置（クラン
プ）を設けて、この反力掴み装置により既設杭をクラン
プすることによって反力を取っており、この反力掴み装
置は台座の下面にあって進行方向先頭の反力掴み装置は
左右方向に摺動自在に設けられ、残りの反力掴み装置は
前後及び左右方向に摺動自在に取り付けられている。こ
れはカーブ施工において建込み杭の進行方向法線に対す
るクランプ装置の左右方向への「ずれ」に対する位置合
わせと、反力掴み装置が既設杭に圧接する際に発生する
クリアランス分の移動をスムーズに行わせるための機構
を構成している。As this static load type steel pipe pile press-fitting / pulling machine,
As shown in Japanese Utility Model Publication No. 6-21962, by providing a plurality of reaction force gripping devices (clamps) below a pedestal placed on an existing steel pipe pile, the reaction force gripping device clamps the existing pile. This reaction force gripping device is on the lower surface of the pedestal, and the reaction force gripping device at the front of the traveling direction is provided slidably in the left and right directions, and the remaining reaction force gripping devices are in the front and rear and left and right directions. It is slidably attached. This is for smooth alignment of the clamp device in the left-right direction with respect to the normal of the built-in pile in the curve construction and for the clearance generated when the reaction force gripping device is pressed against the existing pile. It constitutes the mechanism for making it happen.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、前記実
公平６−２１９６２号に示す従来の鋼管杭圧入引抜機
は、進行方向先頭の反力掴み装置のみが左右方向に摺動
自在に設けられ、残りの反力掴み装置は全て前後及び左
右方向に摺動自在に配備されているため、圧入引抜機自
体が大型化するとともに、前後及び左右方向の双方の駆
動機構を組み込まなければならず、圧入引抜機自体の垂
直方向の寸法が高くなって機械重量も大きくなり、しか
も機構がきわめて複雑であって製作コストが高騰してし
まうという課題がある。However, in the conventional steel pipe pile press-fitting / extracting machine shown in Japanese Utility Model Publication No. 6-21962, only the reaction force gripping device at the head of the traveling direction is provided slidably in the left and right directions, and the rest is left. Since all of the reaction force gripping devices of the above are slidably arranged in the front-rear direction and the left-right direction, the press-fitting / extracting machine itself becomes large, and both the front-rear direction and the left-right direction drive mechanism must be incorporated. There is a problem that the vertical dimension of the machine itself becomes high and the machine weight also becomes large, and furthermore, the mechanism is extremely complicated and the manufacturing cost rises.
【０００５】特に圧入引抜機自体が大型化することによ
り、建設現場への圧入引抜機本体の搬入には大型のクレ
ーンを用いるか、該圧入引抜機本体を分割して搬入して
から現場で組み立てる作業が必要であり、大きな現場ス
ペースが要求されるとともに作業の煩雑化と効率低下を
招来し、施工計画がスムーズに進行しないケースが生じ
るという問題がある。In particular, since the press-fitting / extracting machine itself becomes large, a large-sized crane is used to carry the press-fitting / drawing machine body to the construction site, or the press-fitting / drawing machine body is divided and carried in before being assembled on site. There is a problem that work is required, a large site space is required, the work becomes complicated and efficiency is reduced, and a construction plan may not proceed smoothly.
【０００６】更に建込用の鋼管杭をチャックするため
に、実公平７−６１９６号公報に記載されているように
チャックヘッド内に鋼管杭の外周を押圧挟持する挟持板
を内蔵させて、この挟持板をシリンダにより鋼管杭方向
に進退移動させてチャックするようにした機構が用いら
れている。このチャックヘッドは既設の鋼管杭の上端部
との干渉を避けるため下降可能な位置に制限があり、圧
入引抜施工時に挟持板の下端部で建込用の鋼管杭の上端
部を内接又は外接させるため、挟持板の下方を一方側に
延設する手段も知られているが、鋼管杭の圧入引抜時に
反力掴み装置にクランプされた既設の鋼管杭が浮き上が
る現象があるため、チャックヘッドと既設の鋼管杭の上
端部との干渉を完全に避けるには制約条件がある。Further, in order to chuck the steel pipe pile for construction, as described in Japanese Utility Model Publication No. 7-6196, a clamping plate for pressing and clamping the outer periphery of the steel pipe pile is built in the chuck head. A mechanism is used in which a sandwiching plate is moved forward and backward in the direction of a steel pipe pile by a cylinder and chucked. This chuck head is limited in the position where it can descend to avoid interference with the upper end of the existing steel pipe pile, and the upper end of the steel pipe pile for construction is inscribed or circumscribed at the lower end of the sandwich plate during press-fitting / pulling-out work. In order to make it possible to extend the lower side of the sandwiching plate to one side, it is also known, but there is a phenomenon that the existing steel pipe pile clamped by the reaction force gripping device floats up when the steel pipe pile is press-fitted and withdrawn. There are restrictions to completely avoid the interference with the upper end of the existing steel pipe pile.
【０００７】鋼管杭の圧入引抜時に反力掴み装置にクラ
ンプされた既設の鋼管杭が浮き上がる現象に対処して、
圧入施工時には建込用の鋼管杭の上端部が既設の鋼管杭
の上端部よりも若干下方に位置するまで深く圧入を行わ
なければ打設された鋼管杭の上端部が水平にならないと
いう問題がある。しかし鋼管杭は外径を基準寸法として
肉厚を変化させた多品種の製品があり、同一現場におい
ても肉厚の異なる鋼管杭を連続して圧入施工するケース
も多く、前記したチャックヘッド内に鋼管杭の外周を押
圧挟持する挟持板を設けた構成では、該挟持板を内接さ
せるために予め多種類の挟持板を準備しなければならな
いという問題点がある。To cope with the phenomenon that the existing steel pipe pile clamped by the reaction force gripping device floats up when the steel pipe pile is press-fitted and withdrawn,
During press-fitting, there is a problem that the top end of the steel pipe pile that has been placed will not be horizontal unless the top end of the steel pipe pile for construction is located slightly below the top end of the existing steel pipe pile. is there. However, there are many types of steel pipe piles whose wall thickness is changed with the outer diameter as the reference dimension, and there are many cases where steel pipe piles with different wall thicknesses are continuously press-fitted even at the same site, and the above-mentioned chuck head In the configuration in which the sandwiching plate that presses and clamps the outer circumference of the steel pipe pile is provided, there is a problem that various types of sandwiching plates must be prepared in advance in order to inscribe the sandwiching plate.
【０００８】上記挟持板を外接した場合でも該挟持板を
鋼管杭方向に進退移動させているシリンダ装置が対向配
置されているため、既設の鋼管杭の上端部位置よりも下
方に下降できないチャックヘッドに内蔵された挟持板を
進退移動させるシリンダ装置も既設の鋼管杭の上端部よ
りも上方部に配置しなければならない。また、挟持板の
下方を一方側に延設すると、挟持板が延設部からの負荷
を受けて大きな曲げ力が作用するので、挟持板として強
度が大きな材料を使用しなければならず、シリンダ装置
自体も偏荷重に耐える強度と機構が要求されるという課
題がある。Even when the holding plate is circumscribed, since the cylinder devices that move the holding plate forward and backward in the direction of the steel pipe pile are arranged so as to face each other, the chuck head cannot be lowered below the upper end position of the existing steel pipe pile. The cylinder device for advancing and retreating the sandwiching plate built in the must also be arranged above the upper end of the existing steel pipe pile. Further, if the lower side of the sandwiching plate is extended to one side, the sandwiching plate receives a load from the extending portion and a large bending force acts, so that a material having high strength must be used as the sandwiching plate. There is a problem that the device itself also requires strength and a mechanism that can withstand unbalanced loads.
【０００９】そこで本発明はこのような従来の鋼管杭圧
入引抜機が有している課題を解消して、圧入引抜機自体
の大型化を防止するとともに機構を簡易化して垂直方向
の寸法を低くし、機械重量も低減して建設現場での搬入
と操作を容易にするとともに、圧入時の抵抗力によって
浮き上がった既設鋼管杭による圧入引抜機本体の傾斜姿
勢を修正して、鋼管杭の上端部との干渉をさけながら浮
き上がった分だけ建込用の鋼管杭を既設の鋼管杭の上端
部よりも下方に下降させることができる鋼管杭圧入引抜
機を提供することを目的とするものである。Therefore, the present invention solves the problems of the conventional steel pipe pile press-fitting / pulling machine, prevents the press-fitting / pulling machine itself from becoming large, and simplifies the mechanism to reduce the vertical dimension. In addition, the machine weight is reduced to facilitate loading and operation at the construction site, and the tilted posture of the press-fitting / extracting machine body due to the existing steel pipe pile that has been lifted due to the resistance force during press-fitting has been corrected, and the upper end of the steel pipe pile has been corrected. It is an object of the present invention to provide a steel pipe pile press-fitting / extracting machine capable of lowering a steel pipe pile for erection only below the upper end of an existing steel pipe pile by the amount of floating while avoiding interference with the steel pipe pile.
【００１０】[0010]
【課題を解決するための手段】本発明は上記目的を達成
するために、下方に反力掴み装置を配設して既設の鋼管
杭上に定置される台座と、該台座上にスライド自在に配
備されたスライドベースの上方にあって縦軸を中心とし
て回動自在に立設されたガイドフレームと、該ガイドフ
レームに昇降自在に装着されて杭圧入引抜シリンダが取
り付けられた昇降体と、昇降体の下方に配備された旋回
自在な杭掴み装置とを備えた鋼管杭圧入引抜機におい
て、上記反力掴み装置を、前部反力掴み装置と後部反力
掴み装置に分割構成し、前部反力掴み装置は台座の下面
に固定するとともに後部反力掴み装置に一端が台座に固
定されて前部反力掴み装置に対して相対的に前後方向に
摺動させるシリンダ装置を配設してある。 In order to achieve the above object, the present invention provides a pedestal which is installed on an existing steel pipe pile with a reaction force gripping device arranged below, and slidably mounted on the pedestal. A guide frame that is erected above the installed slide base so as to be rotatable about a vertical axis, an elevating body that is mounted on the guide frame so as to be vertically movable, and to which a pile press-fitting / extracting cylinder is attached, In a steel pipe pile press-fitting / extracting machine equipped with a swivelable pile gripping device disposed below the body, the reaction force gripping device is divided into a front reaction force gripping device and a rear reaction force gripping device, and a front portion The reaction force gripping device is fixed to the lower surface of the pedestal, and one end is fixed to the pedestal on the rear reaction force gripping device.
Is fixed in the front-rear direction relative to the front reaction force gripping device.
A cylinder device for sliding is provided.
【００１１】圧入引抜機本体の台座上に進行方向に沿っ
て摺動自在にスライドベースを配備して、このスライド
ベース上に支持アームを縦軸を中心として回動自在に軸
支し、該支持アームの前部に設けた軸受部を中心として
ガイドフレームを傾動自在に立設する。また、杭掴み装
置の内壁面に、固定側チャック爪と該固定側チャック爪
と対向する位置にあってチャックシリンダの押圧力によ
り建込用鋼管杭の外周を円筒方向から固定側チャック爪
方向に押動する可動側チャック爪を配置してある。A slide base is provided slidably along the traveling direction on the pedestal of the press-fitting / pulling-out machine main body, and a support arm is rotatably supported on the slide base about the vertical axis to support the support arm. A guide frame is erected so as to be tiltable about a bearing portion provided at the front portion of the arm. In addition, on the inner wall surface of the pile gripping device, the fixed side chuck claw and the position facing the fixed side chuck claw, the pressing force of the chuck cylinder moves the outer circumference of the steel pipe pile for building from the cylindrical direction to the fixed side chuck claw direction. A movable chuck claw that pushes is arranged.
【００１２】更に可動側チャック爪及び固定側チャック
爪の下側部に、建込用の鋼管杭との間に所定長の間隙を
形成する段部を形成するとともに、杭掴み装置の下面
に、既設の鋼管杭の上面との間に所定長の間隙を形成す
る切欠部を形成する。Further, a step portion which forms a gap of a predetermined length between the movable side chuck claw and the fixed side chuck claw is formed at the lower side of the steel pipe pile for construction, and at the bottom surface of the pile gripping device, A notch that forms a gap of a predetermined length is formed between the upper surface of the existing steel pipe pile and the upper surface.
【００１３】かかる本発明によれば、建込用の鋼管杭を
地盤に圧入する際の基本操作は前部反力掴み装置と後部
反力掴み装置の各クランプシリンダを用いて既設の鋼管
杭をクランプしてから杭掴み装置に内蔵されたチャック
シリンダにより可動側チャック爪を固定側チャック爪方
向に押動して建込用鋼管杭の外周をチャックし、杭圧入
引抜シリンダの駆動により鋼管杭の圧入を行う。建込用
の鋼管杭を所定の深度まで地盤に圧入してから可動側チ
ャック爪と固定側チャック爪の下側部に形成された段部
を鋼管杭の上面に押し当て、チャックシリンダにより前
記間隙がなくなるまで締め付けてから杭圧入引抜シリン
ダを駆動して建込用の鋼管杭の上端面が既設の鋼管杭の
上端面よりも若干降下するようにして地盤へ圧入する。
この圧入時には杭掴み装置の下面に形成された切欠部に
よって杭掴み装置の下面が既設の鋼管杭の上面に干渉す
ることがない。According to the present invention, the basic operation for press-fitting a steel pipe pile for construction into the ground is to use an existing steel pipe pile by using each clamp cylinder of the front reaction force gripping device and the rear reaction force gripping device. After clamping, the movable side chuck claw is pushed in the fixed side chuck claw direction by the chuck cylinder built into the pile gripping device to chuck the outer circumference of the steel pipe pile for construction, and the pile press-in / pull-out cylinder is driven to move the steel pipe pile. Press in. After the steel pipe pile for construction is pressed into the ground to a predetermined depth, the stepped portion formed on the lower side of the movable side chuck claw and the fixed side chuck claw is pressed against the upper surface of the steel pipe pile, and the above gap is created by the chuck cylinder. After tightening until it disappears, the pile press-in / pull-out cylinder is driven so that the upper end surface of the steel pipe pile for construction is slightly lower than the upper end face of the existing steel pipe pile, and is press-fitted into the ground.
During this press-fitting, the lower surface of the pile gripping device does not interfere with the upper surface of the existing steel pipe pile due to the notch formed in the lower surface of the pile gripping device.
【００１４】圧入引抜機を前進させるには、前部反力掴
み装置と既設の鋼管杭とのクランプを解除してから後部
反力掴み装置と台座間に配設されたシリンダ装置を伸長
することによって圧入引抜機本体がシリンダ装置のスト
ローク分だけ前方にスライドし、前部反力掴み装置に内
蔵されたクランプシリンダの伸長により前部反力掴み装
置と既設の鋼管杭とをクランプし、次に後部反力掴み装
置と既設の鋼管杭とのクランプを解除してから上記シリ
ンダ装置の短縮により後部反力掴み装置を前方にスライ
ドさせて再度既設の鋼管杭にクランプして１ステップの
前進工程が完了する。In order to move the press-fitting / pulling machine forward, the clamp between the front reaction force gripping device and the existing steel pipe pile is released, and then the cylinder device provided between the rear reaction force gripping device and the pedestal is extended. The press-fitting / extracting machine body slides forward by the stroke of the cylinder device, and the front reaction force gripping device and the existing steel pipe pile are clamped by the extension of the clamp cylinder built into the front reaction force gripping device. After releasing the clamp between the rear reaction force gripping device and the existing steel pipe pile, by shortening the cylinder device, the rear reaction force gripping device is slid forward and again clamped to the existing steel pipe pile to perform a one-step forward step. Complete.
【００１５】また、建込用の鋼管杭をカーブしている既
設の鋼管杭に沿って走行しながら順次圧入するには、杭
掴み装置を昇降体に対して旋回して進行方向を転回させ
ながら既設の鋼管杭を前部反力掴み装置と後部反力掴み
装置により強固にクランプして反力を取り、前記したよ
うに杭掴み装置の可動側チャック爪と固定側チャック爪
を用いて鋼管杭をチャックして杭圧入引抜シリンダを駆
動して鋼管杭を地盤へ圧入する。Further, in order to press-fit the steel pipe pile for construction along the existing steel pipe pile that is curved while sequentially press-fitting the pile pipe, turning the pile gripping device with respect to the lifting body and turning the traveling direction. The existing steel pipe pile is firmly clamped by the front reaction force gripping device and the rear reaction force gripping device to take the reaction force, and as described above, the steel pipe pile is used by using the movable chuck jaws and the fixed chuck jaws of the pile gripping device. And press the pile press-in / pull-out cylinder to press the steel pipe pile into the ground.
【００１６】鋼管杭の圧入時に後部反力掴み装置を支点
としてガイドフレームが後傾するモーメントが生じて既
設の鋼管杭の上端面が浮き上がった場合には、傾動シリ
ンダを伸長駆動することによってガイドフレームが前傾
するモーメントが生じて後傾モーメントを打ち消すこと
ができて、建込用の鋼管杭の姿勢を垂直に維持すること
ができる。When the upper end surface of the existing steel pipe pile floats up due to the moment when the guide frame tilts backward with the rear reaction force gripping device as a fulcrum when the steel pipe pile is press-fitted, the guide frame is extended by driving the tilting cylinder. A tilting moment is generated and the tilting moment can be canceled out, and the posture of the steel pipe pile for construction can be maintained vertically.
【００１７】[0017]
【発明の実施の形態】以下図面に基づいて本発明にかか
る鋼管杭圧入引抜機の具体的な実施形態を説明する。図
１は本発明を適用した鋼管杭の圧入引抜機本体１を全体
的に示す側面図、図２は同平面図であり、２は台座、３
は台座２の下部に配設されて既設の鋼管杭をクランプす
る反力掴み装置である。この反力掴み装置３は前部反力
掴み装置３ａと後部反力掴み装置３ｂとに分割構成され
ている。詳細は後述するように、前部反力掴み装置３ａ
は台座２の下面に固定されており、後部反力掴み装置３
ｂは台座２の下面にあって進行方向に対して前後方向に
摺動自在に配設されている。Ｆは圧入引抜機本体１の進
行方向を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete embodiment of a steel pipe pile press-fitting / pulling machine according to the present invention will be described below with reference to the drawings. 1 is a side view generally showing a press-in / pull-out machine main body 1 for a steel pipe pile to which the present invention is applied, FIG. 2 is a plan view thereof, 2 is a pedestal, 3
Is a reaction force gripping device that is disposed below the pedestal 2 and clamps an existing steel pipe pile. The reaction force gripping device 3 is divided into a front reaction force gripping device 3a and a rear reaction force gripping device 3b. As will be described in detail later, the front reaction force gripping device 3a
Is fixed to the lower surface of the pedestal 2, and the rear reaction force gripping device 3
b is on the lower surface of the pedestal 2 and is arranged slidably in the front-back direction with respect to the traveling direction. F indicates the traveling direction of the press-fitting / pulling machine main body 1.
【００１８】台座２上には圧入引抜機本体１の進行方向
に沿って摺動自在にスライドベース４が配備されてお
り、このスライドベース４上には支持アーム５が縦軸を
中心として回動自在に軸支され、この支持アーム５の前
部に設けた軸受部６ａを中心として回動可能なガイドフ
レーム６が立設されている。このガイドフレーム６は、
一端が支持アーム５に軸支された傾動シリンダ７の伸縮
によって軸受部６ａを中心として傾動可能となってい
る。A slide base 4 is provided on the pedestal 2 so as to be slidable along the advancing direction of the press-fitting / extracting machine main body 1. On the slide base 4, a support arm 5 rotates about the vertical axis. A guide frame 6 is rotatably supported, and is erected upright around a bearing portion 6a provided in the front portion of the support arm 5. This guide frame 6 is
The tilting cylinder 7 whose one end is pivotally supported by the support arm 5 can be tilted about the bearing portion 6a by expansion and contraction.
【００１９】上記ガイドフレーム６には昇降体８が昇降
自在に装着されている。該昇降体８の両側には左右一対
の杭圧入引抜シリンダ９，９が取り付けられていて、こ
の杭圧入引抜シリンダ９，９の一端が前記軸受部６ａに
軸支されており、昇降体８を上下駆動するように構成さ
れている。An elevating body 8 is mounted on the guide frame 6 so as to be vertically movable. A pair of right and left pile press-fitting / extracting cylinders 9 and 9 are attached to both sides of the elevating / lowering body 8, and one end of the pile press-fitting / extracting cylinders 9 and 9 is pivotally supported by the bearing portion 6a. It is configured to drive up and down.
【００２０】昇降体８の下方には、杭掴み装置１０が該
昇降体８に対して旋回自在に配備されている。この杭掴
み装置１０の内壁面には２個の固定側チャック爪１０
ａ，１０ａと、該固定側チャック爪１０ａ，１０ａと対
向する位置に２個の可動側チャック爪１０ｂ，１０ｂと
が配置されていて、杭掴み装置１０に内蔵されたチャッ
クシリンダ１１，１１の押圧力により可動側チャック爪
１０ｂ，１０ｂを用いて建込用鋼管杭の外周を円筒方向
から固定側チャック爪１０ａ，１０ａ方向に押動して該
鋼管杭を４方向からチャックし、地盤への圧入と引抜を
行う。Below the lifting body 8, a pile gripping device 10 is provided so as to be rotatable with respect to the lifting body 8. Two fixed side chuck claws 10 are provided on the inner wall surface of the pile gripping device 10.
a, 10a and two movable chuck claws 10b, 10b at positions facing the fixed chuck claws 10a, 10a are arranged to push the chuck cylinders 11, 11 incorporated in the pile gripping device 10. The movable side chuck claws 10b and 10b are used to push the outer circumference of the steel pipe pile for construction from the cylindrical direction to the fixed side chuck claws 10a and 10a to chuck the steel pipe pile from four directions, and press it into the ground. And pull out.
【００２１】図３は図１のＡ−Ａ線に沿う断面図であ
り、後部反力掴み装置３ｂと台座２との間に、一端が台
座２側に固定されて後部反力掴み装置３ｂを進行方向Ｆ
に対して前後方向に摺動させるシリンダ装置１２が配設
されている。尚、前記したように前部反力掴み装置３ａ
は台座２に固定されている。FIG. 3 is a sectional view taken along the line AA in FIG. 1. One end of the rear reaction force gripping device 3b is fixed between the rear reaction force gripping device 3b and the pedestal 2 to the pedestal 2 side. Direction of travel F
A cylinder device 12 that slides in the front-rear direction is provided. As described above, the front reaction force gripping device 3a
Is fixed to the pedestal 2.
【００２２】図４は反力掴み装置３ａ（３ｂ）の縦断面
図、図５は図４のＢ−Ｂ線に沿う断面図であり、該反力
掴み装置３ａ（３ｂ）内にはクランプシリンダ１３が内
蔵されている。該クランプシリンダ１３の一端が杭掴み
装置３ａ（３ｂ）の一方側に固定されているとともに他
方側が半円形部分に固定されていて、このクランプシリ
ンダ１３の伸長に伴って既設の鋼管杭の内面に反力掴み
装置３ａ（３ｂ）が圧接して、摩擦抵抗により建込用鋼
管杭の圧入引抜時の反力を得るように構成されている。FIG. 4 is a vertical cross-sectional view of the reaction force gripping device 3a (3b), and FIG. 5 is a cross-sectional view taken along the line BB of FIG. 4. The reaction force gripping device 3a (3b) is provided with a clamp cylinder. 13 is built in. One end of the clamp cylinder 13 is fixed to one side of the pile gripping device 3a (3b) and the other side is fixed to a semi-circular portion, and as the clamp cylinder 13 extends, the inside of the existing steel pipe pile is fixed. The reaction force gripping device 3a (3b) is pressure-contacted to obtain a reaction force at the time of press-fitting / pulling out the steel pipe pile for construction by frictional resistance.
【００２３】図６は圧入引抜機本体１の前部反力掴み装
置３ａと後部反力掴み装置３ｂの前記クランプシリンダ
１３を用いて既設の鋼管杭１４をクランプすることによ
り反力を取りながら建込用の鋼管杭１５を地盤に圧入す
る際の初期状態を示す要部縦断面図であり、予め可動側
チャック爪１０ｂ及び固定側チャック爪１０ａの下側部
には、建込用の鋼管杭１５との間に所定長の間隙を形成
する段部１６ｂ，１６ａが形成され、杭掴み装置１０の
下面には既設の鋼管杭１４の上面との間に所定長の間隙
を形成する平行な切欠部１０ｃが形成されている。な
お、図示の鋼管杭１４，１５は雄型の継ぎ手と雌型の継
ぎ手を係合させた各種のセクション部Ｓによって相互に
噛合した状態で圧入されるものである（図９〜図１２参
照）。FIG. 6 shows a construction in which the existing steel pipe pile 14 is clamped by using the clamp cylinders 13 of the front reaction force gripping device 3a and the rear reaction force gripping device 3b of the press-fitting / pulling machine main body 1 to take a reaction force. FIG. 3 is a longitudinal sectional view of an essential part showing an initial state when press-fitting a steel pipe pile 15 into the ground, in which a steel pipe pile for installation is preliminarily provided under the movable side chuck claw 10b and the fixed side chuck claw 10a. Stepped portions 16b and 16a are formed to form a gap of a predetermined length with the parallel grips 10 on the lower surface of the pile gripping device 10 to form a gap of a predetermined length from the upper surface of the existing steel pipe pile 14. The portion 10c is formed. The illustrated steel pipe piles 14 and 15 are press-fitted in a state of being meshed with each other by various section parts S in which a male joint and a female joint are engaged (see FIGS. 9 to 12). .
【００２４】かかる構成によれば、建込用の鋼管杭１５
を地盤に圧入する際の基本操作として、先ず前部反力掴
み装置３ａと後部反力掴み装置３ｂの各クランプシリン
ダ１３を用いて既設の鋼管杭１４をクランプしてから杭
掴み装置１０に内蔵されたチャックシリンダ１１，１１
により可動側チャック爪１０ｂを固定側チャック爪１０
ａ方向に押動して建込用鋼管杭１５の外周を４方向から
チャックし、杭圧入引抜シリンダ９，９を駆動して鋼管
杭１５の地盤への圧入を行う。そして、杭圧入引抜シリ
ンダ９，９のストローク分だけ圧入すると、チャックシ
リンダ１１，１１を開放し、チャックシリンダ１１，１
１を上昇させ、再び前記同様の操作を繰り返して所定の
深度まで圧入を行うものである。According to this structure, the steel pipe pile 15 for construction
As a basic operation when press-fitting the ground into the ground, first, the existing steel pipe pile 14 is clamped by using each clamp cylinder 13 of the front reaction force gripping device 3a and the rear reaction force gripping device 3b, and then built into the pile gripping device 10. Chuck cylinders 11 and 11
To move the movable chuck jaw 10b to the fixed chuck jaw 10
The steel pipe pile 15 is pushed in the direction a to chuck the outer circumference of the steel pipe pile 15 from four directions, and the pile press-in / pull-out cylinders 9 and 9 are driven to press the steel pipe pile 15 into the ground. When the pile press-in / pull-out cylinders 9, 9 are press-fitted by the strokes, the chuck cylinders 11, 11 are opened, and the chuck cylinders 11, 1 are opened.
1 is raised, and the same operation as described above is repeated to perform press-fitting to a predetermined depth.
【００２５】次に図７に示したように、建込用の鋼管杭
１５を所定の深度まで地盤に圧入してから可動側チャッ
ク爪１０ｂと固定側チャック爪１０ａの下側部に形成さ
れた段部１６ｂ，１６ａを鋼管杭１５の上面に押し当
て、チャックシリンダ１１，１１により前記間隙がなく
なるまで締め付けてから再度杭圧入引抜シリンダ９，９
を駆動して建込用の鋼管杭１５の上端面が既設の鋼管杭
１４の上端面よりも寸法Ｅだけ降下するようにして地盤
へ圧入する。この圧入時には杭掴み装置１０の下面に形
成された切欠部１０ｃにより、該杭掴み装置１０の下面
が既設の鋼管杭１４の上面に干渉することがない。Next, as shown in FIG. 7, the steel pipe pile 15 for construction was press-fitted into the ground to a predetermined depth and then formed on the lower side of the movable chuck claw 10b and the fixed chuck claw 10a. The step portions 16b and 16a are pressed against the upper surface of the steel pipe pile 15 and tightened by the chuck cylinders 11 and 11 until the gap is eliminated, and then the pile press-in / pull-out cylinders 9 and 9 are pressed again.
Is driven to press into the ground so that the upper end surface of the steel pipe pile 15 for construction is lowered by a dimension E from the upper end face of the existing steel pipe pile 14. At the time of this press-fitting, the notch 10c formed on the lower surface of the pile gripping device 10 prevents the lower surface of the pile gripping device 10 from interfering with the upper surface of the existing steel pipe pile 14.
【００２６】図８に示したように鋼管杭１５の圧入時に
後部反力掴み装置３ｂの当接部１７を支点としてスライ
ドベース４と支持アーム５が上方へ回動し、ガイドフレ
ーム６が後傾するモーメントが生じて、既設の鋼管杭１
４の上端面が寸法Ｆだけ浮き上がった場合には、ガイド
フレーム６の一端が支持アーム５に軸支された傾動シリ
ンダ７の伸縮によって軸受部６ａを中心として傾動可能
となっているため、該傾動シリンダ７を伸長駆動するこ
とによってガイドフレーム６が前傾するモーメントが生
じて前記した後傾モーメントを打ち消すことができて、
建込用の鋼管杭１５の姿勢を垂直に維持することができ
る。As shown in FIG. 8, when the steel pipe pile 15 is press-fitted, the slide base 4 and the support arm 5 rotate upward with the contact portion 17 of the rear reaction force gripping device 3b as a fulcrum, and the guide frame 6 tilts backward. Existing steel pipe pile 1
When the upper end surface of 4 is lifted by the dimension F, one end of the guide frame 6 can be tilted about the bearing portion 6a by the expansion and contraction of the tilt cylinder 7 pivotally supported by the support arm 5, and therefore the tilting is performed. By driving the cylinder 7 to extend, a moment in which the guide frame 6 tilts forward is generated, and the aforementioned tilting moment can be canceled.
The attitude of the steel pipe pile 15 for building can be maintained vertically.
【００２７】図９〜図１０は本発明を適用して既設の鋼
管杭１４上を走行しながら建込用の鋼管杭１５を打設す
る際の作業姿勢を示す概略図であり、図９は建込用の鋼
管杭１５を直線状に圧入する作業姿勢を、図１０は曲線
状にカーブしている既設の鋼管杭１４に沿って走行しな
がら建込用の鋼管杭１５を圧入する作業姿勢を夫々示し
ている。図９に示したように建込用の鋼管杭１５を直線
上に順次地盤に圧入するには、既設の鋼管杭１４を前部
反力掴み装置３ａと後部反力掴み装置３ｂの各クランプ
シリンダ１３の伸長に伴って強固にクランプして反力を
取りながら、杭掴み装置１０に内蔵されたチャックシリ
ンダ１１，１１の押圧力により可動側チャック爪１０ｂ
と固定側チャック爪１０ａを用いて鋼管杭１５を４方向
からチャックして、左右一対の杭圧入引抜シリンダ９，
９の駆動により昇降体８をガイドフレーム６に沿って下
降することにより、鋼管杭１５を地盤へ順次圧入する。FIGS. 9 to 10 are schematic views showing the working posture when the steel pipe pile 15 for construction is placed while traveling on the existing steel pipe pile 14 by applying the present invention, and FIG. Fig. 10 shows a work posture in which the steel pipe pile 15 for building is press-fitted in a straight line. Fig. 10 shows a work posture in which the steel pipe pile 15 for building is press-fitted while traveling along the existing steel pipe pile 14 that is curved. Are shown respectively. As shown in FIG. 9, in order to press the steel pipe piles 15 for construction into the ground one after another in a straight line, the existing steel pipe piles 14 are clamp cylinders of the front reaction force gripping device 3a and the rear reaction force gripping device 3b. The movable side chuck claw 10b is generated by the pressing force of the chuck cylinders 11 built in the pile gripping device 10 while firmly clamping the reaction force with the extension of 13 and taking a reaction force.
And the fixed side chuck jaws 10a are used to chuck the steel pipe pile 15 from four directions, and a pair of right and left pile press-fitting / extracting cylinders 9,
By driving 9 to lower the elevating body 8 along the guide frame 6, the steel pipe piles 15 are sequentially pressed into the ground.
【００２８】圧入引抜機本体１を前進させるには、前部
反力掴み装置３ａと既設の鋼管杭１４とのクランプを解
除してから後部反力掴み装置３ｂと台座２との間に配設
されたシリンダ装置１２を伸長することにより、圧入引
抜機本体１がシリンダ装置１２のストローク分だけ前方
にスライドするので、そこで前部反力掴み装置３ａに内
蔵されたクランプシリンダ１３の伸長により前部反力掴
み装置３ａと既設の鋼管杭１４とをクランプし、次に後
部反力掴み装置３ｂと既設の鋼管杭１４とのクランプを
解除してから上記シリンダ装置１２の短縮により後部反
力掴み装置３ｂを前方にスライドさせて再度既設の鋼管
杭１４にクランプすることにより、１ステップの前進工
程が行われる。In order to move the press-fitting / pulling-out machine main body 1 forward, the clamp between the front reaction force gripping device 3a and the existing steel pipe pile 14 is released, and then it is arranged between the rear reaction force gripping device 3b and the pedestal 2. Since the press-fitting / pulling-out machine main body 1 slides forward by the stroke of the cylinder device 12 by extending the compressed cylinder device 12, the front part is extended by the extension of the clamp cylinder 13 built in the front reaction force gripping device 3a. The reaction force gripping device 3a and the existing steel pipe pile 14 are clamped, and then the rear reaction force gripping device 3b and the existing steel pipe pile 14 are released from the clamp, and the rear reaction force gripping device is shortened by shortening the cylinder device 12. By sliding 3b forward and re-clamping the existing steel pipe pile 14, a one-step forward process is performed.
【００２９】図１０に示すように建込用の鋼管杭１５を
曲線Ｍのようにカーブしている既設の鋼管杭１４に沿っ
て走行しながら順次圧入するには、杭掴み装置１０を昇
降体８に対して旋回して進行方向を転回させながら既設
の鋼管杭１４を前部反力掴み装置３ａと後部反力掴み装
置３ｂにより強固にクランプして反力を取り、前記説明
したように杭掴み装置１０の可動側チャック爪１０ｂと
固定側チャック爪１０ａを用いて鋼管杭１５を４方向か
らチャックして、杭圧入引抜シリンダ９，９の駆動によ
り昇降体８をガイドフレーム６に沿って下降することに
より、鋼管杭１５を地盤へ圧入する。圧入引抜機本体１
を前進させる操作は、前記の鋼管杭１５を直線状に圧入
する場合の操作と一致している。In order to sequentially press-fit the steel pipe pile 15 for construction along the existing steel pipe pile 14 which is curved like the curve M as shown in FIG. 10, the pile gripping device 10 is moved up and down. The existing steel pipe pile 14 is firmly clamped by the front reaction force gripping device 3a and the rear reaction force gripping device 3b to take a reaction force while turning with respect to 8 and rotating the traveling direction. The steel pipe pile 15 is chucked from four directions using the movable side chuck claw 10b and the fixed side chuck claw 10a of the gripping device 10, and the lifting / lowering body 8 is lowered along the guide frame 6 by driving the pile press-in / pull-out cylinders 9. By doing so, the steel pipe pile 15 is pressed into the ground. Press-in / pull-out machine body 1
The operation of advancing is the same as the operation when the steel pipe pile 15 is press-fitted linearly.
【００３０】図１１〜図１２は本発明を適用して既設の
鋼管杭１４上を走行しながら建込用の鋼管杭１５を直角
方向に打設する際の作業姿勢を示す概略図であり、先ず
図１１に示したように、既設の鋼管杭１４を前部反力掴
み装置３ａと後部反力掴み装置３ｂの各クランプシリン
ダ１３の伸長に伴って強固にクランプして反力を取りな
がら、杭掴み装置１０に内蔵されたチャックシリンダ１
１，１１の押圧力により前記図９により説明した操作方
法に基づいて鋼管杭１５ａをチャックして直進方向に該
鋼管杭１５ａを圧入する。鋼管杭１５ａの圧入が終了し
てから杭掴み装置１０を昇降体８に対して旋回して、進
行方向と直角方向で鋼管杭１５ａと隣接する位置に別の
鋼管杭１５ｂを同様な操作方法により圧入し、必要に応
じて該鋼管杭１５ｂと逆方向に隣接する位置にも鋼管杭
１５ｃを圧入する。尚、鋼管杭１５ｃは圧入引抜機本体
１の自走後に後部反力掴み装置３ｂの支持力が不足する
ことが予測されたケースで打設すれば良く、該鋼管杭１
５ｃの圧入は省略しても良い。FIGS. 11 to 12 are schematic views showing a working posture when the steel pipe pile 15 for construction is driven in a right angle direction while traveling on the existing steel pipe pile 14 by applying the present invention, First, as shown in FIG. 11, while the existing steel pipe pile 14 is firmly clamped with the extension of each clamp cylinder 13 of the front reaction force gripping device 3a and the rear reaction force gripping device 3b to take a reaction force, Chuck cylinder 1 built in the pile gripping device 10
The steel pipe pile 15a is chucked by the pressing force of 1 and 11 based on the operation method described with reference to FIG. 9, and the steel pipe pile 15a is press-fitted in the straight direction. After the press-fitting of the steel pipe pile 15a is completed, the pile gripping device 10 is rotated with respect to the lifting body 8 and another steel pipe pile 15b is placed at a position adjacent to the steel pipe pile 15a in the direction perpendicular to the traveling direction by the same operation method. The steel pipe pile 15c is press-fitted, and if necessary, the steel pipe pile 15c is also press-fitted to a position adjacent to the steel pipe pile 15b in the opposite direction. It should be noted that the steel pipe pile 15c may be placed in a case in which it is predicted that the supporting force of the rear reaction force gripping device 3b will be insufficient after the press-fitting / pulling machine main body 1 is self-propelled.
The press-fitting of 5c may be omitted.
【００３１】圧入引抜機本体１の転回は、上記鋼管杭１
５ｂの圧入工程を一時停止して、杭掴み装置１０に内蔵
されたチャックシリンダ１１，１１により鋼管杭１５ｂ
をチャックしたまま前部反力掴み装置３ａ及び後部反力
掴み装置３ｂと既設の鋼管杭１４間の各クランプを解除
し、図１２に示すように鋼管杭１５ｂを回動中心として
圧入引抜機本体１を直角方向に転回してから既設の鋼管
杭１５ａと鋼管杭１５ｃに前部反力掴み装置３ａと後部
反力掴み装置３ｂの各クランプシリンダ１３を用いて強
固にクランプして反力を取り、以下同様な操作方法に基
づいて新たな建込用の鋼管杭１５の圧入を継続する。Turning of the press-fitting / pulling machine main body 1 is carried out by the above-mentioned steel pipe pile 1
The press-fitting process of 5b is temporarily stopped, and the steel pipe pile 15b is made by the chuck cylinders 11 and 11 built in the pile gripping device 10.
The clamps between the front reaction force gripping device 3a and the rear reaction force gripping device 3b and the existing steel pipe pile 14 are released while chucking, and the press-fitting / extracting machine main body is rotated around the steel pipe pile 15b as shown in FIG. 1 is turned in the right-angled direction, and then the existing steel pipe pile 15a and steel pipe pile 15c are firmly clamped by using the clamp cylinders 13 of the front reaction force gripping device 3a and the rear reaction force gripping device 3b to take the reaction force. After that, the press-fitting of the new steel pipe pile 15 for construction is continued based on the same operation method.
【００３２】図９〜図１２の何れのケースでも建込用の
鋼管杭１５の圧入引抜方向及びピッチの変更があった場
合には、後部反力掴み装置３ｂと台座２との間に配設さ
れたシリンダ装置１２の伸長による後部反力掴み装置３
ｂのピッチを変更することで対処可能である。また、鋼
管杭１５の圧入のみでなく、引抜時の動作態様も略同一
である。In any of the cases shown in FIGS. 9 to 12, when the press-in / pull-out direction and pitch of the steel pipe pile 15 for construction are changed, the steel pipe pile 15 is arranged between the rear reaction force gripping device 3b and the pedestal 2. Rear reaction force gripping device 3 due to extension of the cylinder device 12
This can be dealt with by changing the pitch of b. Further, not only the press-fitting of the steel pipe pile 15 but also the operation mode at the time of pulling out is substantially the same.
【００３３】[0033]
【発明の効果】以上詳細に説明したように、本発明にか
かる鋼管杭圧入引抜機によれば、建込用の鋼管杭を地盤
に圧入するには前部反力掴み装置と後部反力掴み装置を
用いて既設の鋼管杭をクランプしてから杭掴み装置に内
蔵された可動側チャック爪を固定側チャック爪方向に押
動して建込用鋼管杭をチャックし、該鋼管杭の圧入を行
うことが可能であり、鋼管杭を所定の深度まで地盤に圧
入してから可動側チャック爪と固定側チャック爪の下側
部に形成された段部を鋼管杭の上面に押し当てて間隙が
なくなるまで締め付けてから建込用の鋼管杭の上端面が
既設の鋼管杭の上端面よりも若干降下するようにして地
盤へ圧入して打設された鋼管杭の上端部を水平にするこ
とができる。圧入時には杭掴み装置の下面に形成された
切欠部によって杭掴み装置の下面が既設の鋼管杭の上面
に干渉することが防止される。As described in detail above, according to the steel pipe pile press-fitting / extracting machine according to the present invention, in order to press-fit a steel pipe pile for construction into the ground, a front reaction force gripping device and a rear reaction force gripping device are used. After clamping the existing steel pipe pile using the device, the movable side chuck claw built into the pile gripping device is pushed in the direction of the fixed side chuck claw to chuck the steel pipe pile for installation, and press fit the steel pipe pile. It is possible to press the steel pipe pile into the ground to a predetermined depth, and then press the step formed on the lower side of the movable side chuck claw and the fixed side chuck claw onto the upper surface of the steel pipe pile to create a gap. After tightening until it disappears, the upper end of the steel pipe pile for construction may be slightly lowered from the upper end face of the existing steel pipe pile, and the upper end of the steel pipe pile that is pressed into the ground may be leveled. it can. At the time of press fitting, the notch formed on the lower surface of the pile gripping device prevents the lower surface of the pile gripping device from interfering with the upper surface of the existing steel pipe pile.
【００３４】建込用の鋼管杭を直線状に圧入，引抜する
ばかりでなく、曲線状にカーブしている既設の鋼管杭に
沿って走行しながら順次圧入する場合にも対処可能であ
るとともに前部反力掴み装置と後部反力掴み装置間の前
後方向平行距離は可変自在であるため、既設の鋼管杭上
を走行しながら建込用の鋼管杭を直角方向に打設する等
の使用形態をとることができる。特に従来の鋼管杭圧入
引抜機のように台座の下方に配設された複数の反力掴み
装置の全てを前後方向及び左右方向に摺動自在にする必
要がなくなり、圧入引抜機自体を小型化するとともに機
構が簡易化されて製作コストが低廉化され、しかも圧入
引抜機自体の垂直方向の寸法と重量を下げたことによ
り、大きな現場スペースは要求されずに建設現場への搬
入が可能であり、作業の効率を高めて施工計画をスムー
ズに進行させることができる。Not only is it possible to press-fit and pull-out the steel pipe piles for building in a straight line, but it is also possible to deal with the case where the steel pipe piles are sequentially press-fitted while running along the existing steel pipe piles that are curved. Since the parallel distance in the front-rear direction between the partial reaction force gripping device and the rear reaction force gripping device is variable, it can be used such as driving a steel pipe pile for installation at a right angle while traveling on an existing steel pipe pile. Can be taken. In particular, unlike the conventional steel pipe pile press-in / extractor, it is not necessary to make all of the plurality of reaction force gripping devices arranged below the pedestal slidable in the front-back and left-right directions, and the press-in / extractor itself is downsized. In addition, the mechanism is simplified, the manufacturing cost is reduced, and the vertical dimension and weight of the press-fitting / extracting machine itself are reduced, so that it is possible to carry it into the construction site without requiring a large site space. , The work efficiency can be improved and the construction plan can be smoothly progressed.
【００３５】また、鋼管杭の圧入時に後部反力掴み装置
を支点としてガイドフレームが後傾するモーメントが生
じた場合には、傾動シリンダを伸長駆動することによっ
てガイドフレームに前傾するモーメントが生じて、上記
後傾モーメントを打ち消すことができて、建込用の鋼管
杭の姿勢を垂直に維持することができる。In addition, when the moment when the guide frame tilts backward with the rear reaction force gripping device as the fulcrum when the steel pipe pile is press-fitted, the tilting cylinder is extended to generate the moment when the guide frame tilts forward. The backward tilting moment can be canceled, and the posture of the steel pipe pile for building can be maintained vertically.
【００３６】従って本発明によれば、圧入引抜機自体の
大型化を防止するとともに機構を簡易化して垂直方向の
寸法を低くし、連続して圧入引抜される鋼管杭の圧入引
抜ピッチの変更に対応するとともに圧入時の抵抗力によ
って浮き上がった既設鋼管杭による圧入引抜機本体の傾
斜姿勢を修正して、その浮き上がった分だけ建込用の鋼
管杭を既設の鋼管杭の上端部よりも下方に下降させるこ
とを可能にした静荷重型鋼管杭圧入引抜機を提供するこ
とができる。Therefore, according to the present invention, it is possible to prevent the press-fitting / pulling machine itself from increasing in size and simplify the mechanism to reduce the vertical dimension, thereby changing the press-fitting / pulling pitch of the steel pipe piles to be continuously press-fitted and drawn. Corresponding and by correcting the tilting posture of the press-fitting / extracting machine body by the existing steel pipe pile that floated due to the resistance force at the time of press-fitting, the steel pipe pile for construction is moved downward by the raised amount below the upper end of the existing steel pipe pile. A static load type steel pipe pile press-fitting / pulling machine that can be lowered can be provided.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明を適用した鋼管杭圧入引抜機を全体的に
示す側面図。FIG. 1 is a side view generally showing a steel pipe pile press-fitting / pulling machine to which the present invention is applied.
【図２】図１の平面図。FIG. 2 is a plan view of FIG.
【図３】図１のＡ−Ａ線に沿う断面図。3 is a sectional view taken along the line AA of FIG.
【図４】反力掴み装置の縦断面図。FIG. 4 is a vertical sectional view of a reaction force gripping device.
【図５】図４のＢ−Ｂ線に沿う断面図。5 is a cross-sectional view taken along the line BB of FIG.
【図６】鋼管杭を地盤に圧入する際の初期状態を示す要
部縦断面図。FIG. 6 is a longitudinal cross-sectional view of essential parts showing an initial state when a steel pipe pile is press-fitted into the ground.
【図７】鋼管杭を所定の深度まで圧入した状態を示す要
部縦断面図。FIG. 7 is a longitudinal cross-sectional view of a main part showing a state in which a steel pipe pile is press-fitted to a predetermined depth.
【図８】既設の鋼管杭の浮き上がり状態を示す要部縦断
面図。FIG. 8 is a longitudinal sectional view of an essential part showing a lifted state of an existing steel pipe pile.
【図９】建込用の鋼管杭を直線状に圧入する作業姿勢を
示す概略図。FIG. 9 is a schematic view showing a work posture in which a steel pipe pile for installation is linearly press-fitted.
【図１０】建込用の鋼管杭を曲線状にカーブしている既
設の鋼管杭に沿って圧入する作業姿勢を示す概略図。FIG. 10 is a schematic view showing a work posture in which a steel pipe pile for installation is press-fitted along an existing steel pipe pile that is curved in a curved shape.
【図１１】建込用の鋼管杭を直角方向に打設する際の作
業姿勢を示す概略図。FIG. 11 is a schematic view showing a work posture when a steel pipe pile for erection is driven in a right angle direction.
【図１２】建込用の鋼管杭を直角方向に打設する次段階
の作業姿勢を示す概略図。FIG. 12 is a schematic view showing a work posture at the next stage of driving a steel pipe pile for installation in a right angle direction.
１…圧入引抜機本体 ２…台座 ３ａ…前部反力掴み装置 ３ｂ…後部反力掴み装置 ４…スライドベース ５…支持アーム ６…ガイドフレーム ６ａ…軸受部 ７…傾動シリンダ ８…昇降体 ９…杭圧入引抜シリンダ １０…杭掴み装置 １０ａ…固定側チャック爪 １０ｂ…可動側チャック爪 １０ｃ…切欠部 １１…チャックシリンダ １２…シリンダ装置 １３…クランプシリンダ １４…（既設の）鋼管杭 １５…（建込用の）鋼管杭 １６ａ，１６ｂ…段部 整理番号 Ｐ３２７０ 1 ... Press-fitting and withdrawing machine body 2 ... Pedestal 3a ... Front reaction force gripping device 3b ... Rear reaction force gripping device 4 ... Slide base 5 ... Support arm 6 ... Guide frame 6a ... Bearing part 7 ... Tilt cylinder 8 ... Lifting body 9 ... Pile press-in / extract cylinder 10 ... Pile gripping device 10a ... Fixed side chuck claw 10b ... movable side chuck jaws 10c ... notch 11 ... Chuck cylinder 12 ... Cylinder device 13 ... Clamp cylinder 14 ... (Existing) steel pipe pile 15 ... Steel pipe pile (for construction) 16a, 16b ... Step portion Reference number P3270
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E02D 7/20 E02D 11/00 E02D 13/00 Front page continuation (58) Fields surveyed (Int.Cl. 7 , DB name) E02D 7/20 E02D 11/00 E02D 13/00
Claims (4)
管杭上に定置される台座と、該台座上にスライド自在に
配備されたスライドベースの上方にあって縦軸を中心と
して回動自在に立設されたガイドフレームと、該ガイド
フレームに昇降自在に装着されて杭圧入引抜シリンダが
取り付けられた昇降体と、昇降体の下方に配備された旋
回自在な杭掴み装置とを備えた鋼管杭圧入引抜機におい
て、 上記反力掴み装置を、前部反力掴み装置と後部反力掴み
装置に分割構成し、前部反力掴み装置は台座の下面に固
定するとともに後部反力掴み装置に一端が台座に固定さ
れて前部反力掴み装置に対して相対的に前後方向に摺動
させるシリンダ装置を配設したことを特徴とする鋼管杭
圧入引抜機。1. A pedestal having a reaction force gripping device disposed below and fixedly placed on an existing steel pipe pile, and a slide base disposed slidably on the pedestal, above the pedestal, centered on the vertical axis. A guide frame that is rotatably erected, a lifting body that is vertically mounted on the guide frame and has a pile press-in / pull-out cylinder attached thereto, and a swingable pile gripping device that is arranged below the lifting body. In the steel pipe pile press-in / extractor provided, the reaction force gripping device is divided into a front reaction force gripping device and a rear reaction force gripping device, and the front reaction force gripping device is fixed to the lower surface of the pedestal and the rear reaction force is fixed. A steel pipe pile press-fitting / extracting machine, wherein a one end of the gripping device is fixed to a pedestal, and a cylinder device is provided which slides in the front-rear direction relative to the front reaction force gripping device.
って摺動自在にスライドベースを配備して、このスライ
ドベース上に支持アームを縦軸を中心として回動自在に
軸支し、該支持アームの前部に設けた軸受部を中心とし
てガイドフレームを傾動自在に立設した請求項１に記載
の鋼管杭圧入引抜機。2. A slide base is provided slidably along a traveling direction on a pedestal of a press-fitting / extracting machine main body, and a support arm is rotatably supported on the slide base about a vertical axis. The steel pipe pile press-fitting / extracting machine according to claim 1, wherein a guide frame is erected so as to be tiltable about a bearing portion provided at a front portion of the support arm.
爪と該固定側チャック爪と対向する位置にあってチャッ
クシリンダの押圧力により建込用鋼管杭の外周を円筒方
向から固定側チャック爪方向に押動する可動側チャック
爪を配置した請求項１又は２に記載の鋼管杭圧入引抜
機。3. The fixed side chuck claw and a position facing the fixed side chuck claw on the inner wall surface of the pile gripping device, and the pressing force of the chuck cylinder presses the outer circumference of the steel pipe pile for construction from the cylindrical direction to the fixed side chuck. The steel pipe pile press-fitting / extracting machine according to claim 1 or 2 , wherein a movable chuck jaw that pushes in the nail direction is arranged.
の下側部に、建込用の鋼管杭との間に所定長の間隙を形
成する段部を形成するとともに、杭掴み装置の下面に、
既設の鋼管杭の上面との間に所定長の間隙を形成する切
欠部を形成した請求項３に記載の鋼管杭圧入引抜機。4. A step portion that forms a gap of a predetermined length between the movable side chuck claw and the fixed side chuck claw is formed on the lower side of the movable side chuck claw and the fixed side chuck claw, and is formed on the lower surface of the pile gripping device. ,
The steel pipe pile press-fitting / extracting machine according to claim 3 , wherein a cutout portion that forms a gap of a predetermined length is formed between the steel pipe pile and the upper surface of the existing steel pipe pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001081955A JP3536033B2 (en) | 2001-03-22 | 2001-03-22 | Steel pipe pile press-in and pull-out machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001081955A JP3536033B2 (en) | 2001-03-22 | 2001-03-22 | Steel pipe pile press-in and pull-out machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002275893A JP2002275893A (en) | 2002-09-25 |
| JP3536033B2 true JP3536033B2 (en) | 2004-06-07 |
Family
ID=18937961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001081955A Expired - Fee Related JP3536033B2 (en) | 2001-03-22 | 2001-03-22 | Steel pipe pile press-in and pull-out machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3536033B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5901911B2 (en) * | 2011-08-12 | 2016-04-13 | 株式会社技研製作所 | Construction method of liquefaction countermeasure wall |
| JP5763225B2 (en) * | 2014-01-14 | 2015-08-12 | 株式会社コーワン | Steel sheet pile press-fitting and drawing machine and steel sheet pile press-fitting method |
| CN107034886A (en) * | 2017-05-02 | 2017-08-11 | 武汉电力设备厂 | A kind of hydraulic static plants stake complete set of equipments and plants pile work method |
| CN108505520B (en) * | 2018-04-28 | 2024-05-28 | 中电建生态环境集团有限公司 | Clamping jaw device and hydraulic pile planting machine |
| CN113550312A (en) * | 2021-07-28 | 2021-10-26 | 青海大学 | Method for lowering and pulling joint pipe of seepage-proofing construction wall |
-
2001
- 2001-03-22 JP JP2001081955A patent/JP3536033B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002275893A (en) | 2002-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1963580B1 (en) | Foundation pile driver | |
| JP3536033B2 (en) | Steel pipe pile press-in and pull-out machine | |
| CN114991149A (en) | Municipal construction piling device with auxiliary supporting structure and method thereof | |
| US20110129307A1 (en) | Piling device | |
| JP4044875B2 (en) | Steel pipe pile press-fitting and drawing machine | |
| JPS59109617A (en) | Static load type pile drawer | |
| JP2002348870A (en) | Machine for pressing-in and extracting steel pipe pile | |
| JP4719041B2 (en) | Pile press-in method and pile press-out machine | |
| JP3536037B2 (en) | Steel pipe pile press-in and pull-out machine | |
| JP7229738B2 (en) | Method of press-fitting piles at corners | |
| JP2003213686A (en) | Construction method of earth retaining wall | |
| JP3605406B1 (en) | Clamping device for steel pipe pile | |
| JPH07127060A (en) | Pile pressing-in machine and pile pressing-in and drawing-out construction method | |
| JPH086319B2 (en) | How to press in the pile | |
| JPH0274719A (en) | Clamp mechanism of pile press-fit drawing machine for steel pipe pile | |
| JPH0630222U (en) | Reaction force stand for steel pipe pile punching machine | |
| JP2000002070A (en) | Pile jacking device | |
| JP2877765B2 (en) | Construction method of pile and wall-like structure and pile press-in and pull-out machine | |
| JPH0632991Y2 (en) | Static load type press-in / pull-out machine | |
| JPH069065Y2 (en) | Auxiliary press-in / pull-out device for pile press-in / pull-out machine | |
| JP7182987B2 (en) | Pile press-in device | |
| JP2971813B2 (en) | Embedding member embedding device and embedded member clamping tool used in the device | |
| JPH0720177Y2 (en) | Reaction force stand for steel pipe pile punching machine | |
| JPS6024752Y2 (en) | steel sheet pile pulling machine | |
| JPS6137412B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20040302 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040315 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130319 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20160319 Year of fee payment: 12 |
|
| LAPS | Cancellation because of no payment of annual fees |