JP2007247245A - Pile pressing-in method and pile pressing-in and pulling-out machine - Google Patents

Pile pressing-in method and pile pressing-in and pulling-out machine Download PDF

Info

Publication number
JP2007247245A
JP2007247245A JP2006071430A JP2006071430A JP2007247245A JP 2007247245 A JP2007247245 A JP 2007247245A JP 2006071430 A JP2006071430 A JP 2006071430A JP 2006071430 A JP2006071430 A JP 2006071430A JP 2007247245 A JP2007247245 A JP 2007247245A
Authority
JP
Japan
Prior art keywords
pile
steel sheet
auger
press
sheet pile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2006071430A
Other languages
Japanese (ja)
Other versions
JP4719041B2 (en
Inventor
Kazuhiko Yasuoka
和彦 安岡
Keiichi Nakamura
圭一 中村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KOWAN CO Ltd
Original Assignee
KOWAN CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KOWAN CO Ltd filed Critical KOWAN CO Ltd
Priority to JP2006071430A priority Critical patent/JP4719041B2/en
Publication of JP2007247245A publication Critical patent/JP2007247245A/en
Application granted granted Critical
Publication of JP4719041B2 publication Critical patent/JP4719041B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pile pressing-in method and a pile pressing-in and pulling-out machine capable of pressing in and pulling out a steel sheet pile without increasing the weight of an auger casing and reducing blocking of the steel sheet pile caused by sediment to attain efficient construction. <P>SOLUTION: The pile pressing-in and pulling-out machine presses the steel sheet pile 17 into the ground and pulls it out of the ground by using a pile pulling-in and pulling-out cylinder 10 jointly with excavation by the auger 16. In the pile pressing-in method and the pile pressing-in and pulling-out machine used as basic means, a long and large fixed plate 13 radially extending with a predetermined thickness and extending in a vertical direction is stuck to the facing outer peripheral part of an auger casing 12 inserted in the pile grip device 11, and a center part 17a formed in a recessed form of the steel sheet pile 17 is disposed close to the outer peripheral part of the auger casing 12, while a joint part 17b of the steel sheet pile 17 is disposed in a position to abut on the fixed plate 13. The joint part 17b is firmly chucked to the fixed plate 13 by a chuck mechanism 14 to obtain rotational reaction in auger excavation. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は既設の鋼矢板上に定置して該鋼矢板の反力に基づいてオーガによる掘削と杭圧入引抜機の圧入引抜シリンダの併用により新たな鋼矢板を地盤内に圧入，引抜する工法において、オーガケーシングの重量を増大させることなく効率よく杭圧入引抜作業を施工することができるとともに、現場への搬入を容易にした杭圧入工法及び杭圧入引抜機に関するものである。   The present invention is a method in which a new steel sheet pile is press-fitted into and extracted from the ground by using an auger excavation and a press-fitting cylinder of a pile press-fitting and pulling machine based on the reaction force of the steel sheet pile placed on an existing steel sheet pile. Further, the present invention relates to a pile press-in method and a pile press-in / pull-out machine that can efficiently perform pile press-in / pull-out work without increasing the weight of the auger casing and that can be easily carried into the site.

近年、各種の土木基礎工事において、例えば鋼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矢板の地盤への圧入，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、静荷重型杭圧入引抜機が用いられており、特に上空制限のある場所とか作業現場が手狭で住宅に隣接している場所では、主として静荷重型杭圧入引抜機が採用されている。   In recent years, in various civil engineering foundation works, for example, steel sheet piles provide great support and are economical, so that support piles for temporary construction such as revetment work, mountain retaining work, and cut-off work in addition to permanent structures. Widely adopted as Conventionally, these steel sheet piles are pressed into and pulled out from the ground. For example, in places where there are no restrictions on the sky, construction methods such as vibro hammers, diesel hammers or Nakabori type, and static load type pile press-and-pull machines are used. In places where there are restrictions or where the work site is confined and adjacent to the house, static load type pile press-in / pull-out machines are mainly used.

この静荷重型杭圧入引抜機とは、既設の鋼矢板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、硬質地盤ではオーガによる掘削と杭圧入引抜機の圧入引抜シリンダの併用により、鋼矢板、Ｈ鋼杭、その他の超長尺、超大径の鋼矢板及び鋼管杭の圧入と引抜操作が実施される。中でも鋼矢板は護岸工事及び山留工事、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。   This static load type pile press-and-puller is to provide a plurality of reaction force gripping devices (clamps) below a pedestal placed on an existing steel sheet pile, and clamp the existing piles with this reaction force gripping device. The reaction force is taken. In hard ground, by using auger excavation and press-fitting cylinder of pile press-fitting and drawing machine, steel sheet pile, H steel pile, other ultra-long, super-large diameter steel sheet pile and steel pipe pile A drawing operation is performed. Among them, steel sheet piles are widely used as support piles for temporary works such as revetment work, mountain retaining work, and deadline work.

特許文献１には、剛性が強く、安定して高精度で施工することができるとともに作業時間の短縮化及びコスト削減をはかることができるＺ形鋼矢板用圧入装置及びＺ形鋼矢板の圧入方法を提供することを目的として、両端部に継手部を有するＺ形鋼矢板を掴んで圧入する圧入手段を備えたＺ形鋼矢板用圧入装置であって、前記圧入手段は、Ｚ形鋼矢板をその継手部を互いに接合した状態で、二枚ずつ順次圧入するようにしたＺ形鋼矢板用圧入装置と圧入方法が記載されている。   Patent Document 1 discloses a press-fitting device for a Z-shaped steel sheet pile and a press-fitting method for a Z-shaped steel sheet pile that can be constructed with high rigidity, can be stably and highly accurately, and can reduce working time and cost. Is a press-fitting device for a Z-shaped steel sheet pile provided with press-fitting means for gripping and press-fitting Z-shaped steel sheet piles having joint portions at both ends, wherein the press-fitting means includes a Z-shaped steel sheet pile. A press-fitting device and press-fitting method for Z-shaped steel sheet piles that are sequentially press-fitted two by two in a state where the joint portions are joined to each other are described.

図７は従来のオーガ併用タイプの静荷重型杭圧入引抜機におけるチャック機構１４の一般的な構造を示す要部平断面図であり、このチャック機構１４は、鋼矢板１７の凹型に形成された中央部１７ａがチューブ状に形成されたオーガケーシング１２の外周部に近接配置され、このオーガケーシング１２に建込杭である鋼矢板１７を重ね合わせた状態で挟持させる構造が用いられている。チャック機構１４には２個の固定側チャック爪１８，１９と、該固定側チャック爪１８，１９と対向する位置に可動側チャック爪２０，２１とが配置されていて、可動側チャック爪２０，２１に内蔵されたチャックシリンダ２２，２３の押圧力により可動側チャック爪２０，２１を用いて鋼矢板１７の中央部１７ａを固定側チャック爪１８，１９方向に押動してオーガケーシング１２に対して鋼矢板１７を強固にチャックしてオーガ掘削時の回転反力を得て、該オーガケーシング１２内に挿通されたオーガによる掘削と図外の杭圧入引抜シリンダの併用により鋼矢板１７の地盤内への圧入と引抜動作を行う。
特開２００５−１２７０５３号公報 FIG. 7 is a plan cross-sectional view showing a general structure of the chuck mechanism 14 in the conventional auger combined type static load type pile press-fitting machine. The chuck mechanism 14 is formed in the concave shape of the steel sheet pile 17. A structure is used in which the central portion 17a is disposed in the vicinity of the outer peripheral portion of the auger casing 12 formed in a tube shape, and the steel sheet pile 17 which is a built-up pile is overlapped with the auger casing 12 in a stacked state. The chuck mechanism 14 is provided with two fixed side chuck claws 18, 19 and movable side chuck claws 20, 21 at positions facing the fixed side chuck claws 18, 19. The central portion 17a of the steel sheet pile 17 is pushed in the direction of the fixed side chuck claws 18 and 19 by using the movable side chuck claws 20 and 21 by the pressing force of the chuck cylinders 22 and 23 built in the 21 to the auger casing 12. The steel sheet pile 17 is firmly chucked to obtain the rotational reaction force during auger excavation, and the ground of the steel sheet pile 17 is obtained by using the auger inserted into the auger casing 12 and the pile press-fitting cylinder (not shown). Press-fit and pull-out operation.
JP 2005-127053 A

上記従来の杭掴み装置におけるチャック機構１４は、建込用鋼矢板の凹型に形成された中央部をオーガケーシング１２の外周部に近接配置し、チャックシリンダ２２，２３の押圧力によって鋼矢板１７をオーガケーシング１２側に押動して強固にチャックしているため、チャックシリンダ２２，２３の過大な押圧力によってオーガケーシング１２が不規則に変形して、オーガ掘削機とオーガの動作不良を惹起しやすいという課題がある。また、オーガケーシング１２の変形を防止するため、該オーガケーシング１２を構成するチューブの肉厚を大きくすると、オーガケーシング１２自体の重量増大を招来して製作コストも高騰化してしまうという問題が生じる。   The chuck mechanism 14 in the conventional pile gripping device has a central portion formed in the concave shape of the steel sheet pile for construction close to the outer peripheral portion of the auger casing 12, and the steel sheet pile 17 is moved by the pressing force of the chuck cylinders 22 and 23. Since the auger casing 12 is pushed and firmly chucked, the auger casing 12 is irregularly deformed by the excessive pressing force of the chuck cylinders 22 and 23, causing malfunction of the auger excavator and the auger. There is a problem that it is easy. Further, in order to prevent the auger casing 12 from being deformed, if the thickness of the tube constituting the auger casing 12 is increased, there arises a problem that the weight of the auger casing 12 itself is increased and the manufacturing cost is increased.

特に杭圧入引抜機で施工する建設現場は手狭であるケースが多く、併用されるオーガ掘削機のケーシングの重量が大きくなると、杭圧入引抜機の現場への搬入には大型のクレーンを用いるかもしくは分割して搬入し、現場で組立を行うという作業が必要であり、鋼矢板の大型化と形状の変化にも伴って施工効率の低下を招来して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。   There are many cases where construction sites constructed with pile press-fitting and pulling machines are particularly narrow, and when the weight of the casing of the auger excavator used together increases, a large crane is used to carry the pile press-fitting and pulling machine to the site, or The work of dividing and carrying in and assembling at the site is necessary, and there is a case where the construction plan does not proceed smoothly due to the decrease in construction efficiency with the increase in size and shape of the steel sheet pile There's a problem.

そこで本発明はこのような従来の杭圧入引抜機と杭圧入工法が有している課題を解消して、オーガケーシングの重量を増大させずに鋼矢板を圧入，引抜することができるとともに、鋼矢板の土砂による閉塞を抑えて効率良く施工することが可能な杭圧入工法及び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 eliminates the problems of the conventional pile press-fitting and drawing machine and the pile press-fitting method, and can press-fit and pull the steel sheet pile without increasing the weight of the auger casing. An object of the present invention is to provide a pile press-in method and a pile press-in / pull-out machine that can efficiently perform construction while suppressing blockage of sheet piles by earth and sand.

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矢板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、該杭掴み装置内に挿通されたオーガケーシングをチャックするチャック機構とを具備してなり、オーガによる掘削と杭圧入引抜シリンダの併用により鋼矢板を地盤内に圧入，引抜する杭圧入引抜機において、前記杭掴み装置内に挿通されたオーガケーシングの相対向する外周部に、所定の厚みを保持して径方向に伸びるとともに上下方向に延長する長大な固定板を固着し、鋼矢板の凹型に形成された中央部をオーガケーシングの外周部に近接配置するとともに該鋼矢板の継手部を固定板に接する位置に配置し、チャック機構により継手部を固定板に強固にチャックしてオーガ掘削時の回転反力を得るようにした杭圧入工法と杭圧入引抜機を基本手段としている。   In order to achieve the above-mentioned object, the present invention is provided above a pedestal placed on an existing steel sheet pile with a reaction force gripping device disposed below, and a slide base slidably disposed on the pedestal. The guide frame is erected upright with the vertical axis as the center, the elevating body attached to the guide frame so as to be movable up and down and attached with the pile press-in / out cylinder, and the swivel provided below the elevating body And a chuck mechanism for chucking an auger casing inserted in the pile gripping device, and a steel sheet pile is press-fitted into and extracted from the ground by using an auger and a pile press-fitting cylinder. In the pile press-fitting and extracting machine, a long fixed plate that extends in the radial direction while maintaining a predetermined thickness on the opposing outer peripheral portions of the auger casing that is inserted into the pile gripping device. The center part formed in the concave shape of the steel sheet pile is placed close to the outer periphery of the auger casing and the joint part of the steel sheet pile is placed in contact with the fixed plate, and the joint part is firmly attached to the fixed plate by the chuck mechanism. The pile press-fitting method and pile press-fitting and pulling machine are used as the basic means.

前記固定板は、オーガケーシングの断面中心位置から所定寸法だけオフセットさせた位置に固着してある。更に杭掴み装置内のチャック機構に、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矢板の継手部を固定板方向に押動する可動側チャック爪を配置してある。   The fixing plate is fixed at a position offset by a predetermined dimension from the cross-sectional center position of the auger casing. Further, the chuck mechanism in the pile gripping device is movable so as to push the joint part of the built-up steel sheet pile toward the fixed plate by the pressing force of the chuck cylinder at the position facing the fixed chuck nail and the fixed side chuck nail. Side chuck claws are arranged.

本発明にかかる杭圧入工法及び杭圧入引抜機によれば、オーガケーシング自体が直接チャックシリンダの過大な押圧力によって強固にチャックされることがないため、該オーガケーシングが不規則に変形したりオーガの動作不良を引き起こす惧れはなく、操作時における鋼矢板の土砂による閉塞を抑えて効率良く施工することが可能な杭圧入工法及び杭圧入引抜機を提供することができる。   According to the pile press-fitting method and the pile press-puller according to the present invention, the auger casing itself is not firmly chucked by the excessive pressing force of the chuck cylinder directly. Therefore, it is possible to provide a pile press-in method and a pile press-in / draw-out machine capable of efficiently performing the work while suppressing the blockage of the steel sheet pile due to earth and sand during operation.

また、オーガケーシングの変形が生じないことで、該オーガケーシングを構成するチューブの肉厚を小さくすることが可能であり、オーガケーシング自体の重量を軽減して製作コストが低廉化されるとともに、チューブの内径部分に入るオーガスクリュー羽根の直径を大きくして施工効率をより高めることができる。更にオーガケーシングの重量軽減に伴って施工現場が手狭であってもオーガ掘削機とオーガケーシングの現場への搬入も容易であり、鋼矢板の大型化と形状の変化があっても施工効率の低下を招来せずに施工計画をスムーズに進行させることができる。   Further, since the deformation of the auger casing does not occur, it is possible to reduce the thickness of the tube constituting the auger casing, reduce the weight of the auger casing itself and reduce the manufacturing cost, and the tube The construction efficiency can be further increased by increasing the diameter of the auger screw blades that enter the inner diameter portion. In addition, as the weight of the auger casing is reduced, it is easy to carry the auger excavator and auger casing to the site even when the construction site is too narrow, and the construction efficiency decreases even if the steel sheet pile becomes larger and the shape changes. The construction plan can be smoothly advanced without inviting

以下図面に基づいて本発明にかかる杭圧入工法及び杭圧入引抜機の最良の実施形態を説明する。図１は本発明を適用した圧入引抜機本体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、３，３は台座２の下部に配設されて既設の鋼矢板をクランプする反力掴み装置である。Ｆは圧入引抜機本体１の進行方向を示す。台座２上には圧入引抜機本体１の進行方向Ｆ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６を中心として回動可能なガイドフレーム７が立設されている。このガイドフレーム７は、一端が支持アーム５に軸支された傾動シリンダ８の伸縮によって軸受部６を中心として傾動可能となっている。   DESCRIPTION OF EXEMPLARY EMBODIMENTS A preferred embodiment of a pile press-fitting method and a pile press-fitting and drawing machine according to the present invention will be described below with reference to the drawings. FIG. 1 is a side view generally showing a press-fitting / pulling machine body 1 to which the present invention is applied, FIG. 2 is a plan view thereof, 2 is a pedestal, 3 and 3 are provided at the lower part of the pedestal 2 and existing steel It is a reaction force gripping device that clamps a sheet pile. F indicates the traveling direction of the press-fitting / drawing machine body 1. A slide base 4 is provided on the pedestal 2 so as to be slidable along the advancing direction F of the press-fitting and pulling machine main body 1. A support arm 5 is rotatable on the slide base 4 about the vertical axis. A guide frame 7 that is pivotally supported and is rotatable about a bearing 6 provided at the front of the support arm 5 is provided upright. The guide frame 7 can be tilted about the bearing portion 6 by expansion and contraction of a tilting cylinder 8 that is pivotally supported by the support arm 5 at one end.

上記ガイドフレーム７には昇降体９が昇降自在に装着されている。該昇降体９の両側には左右一対の杭圧入引抜シリンダ１０，１０が取り付けられていて、この杭圧入引抜シリンダ１０，１０の一端が前記軸受部６に軸支されており、昇降体９を上下駆動するように構成されている。   An elevating body 9 is mounted on the guide frame 7 so as to be movable up and down. A pair of left and right pile press-in / pull-out cylinders 10 and 10 are attached to both sides of the lift body 9, and one ends of the pile press-in and pull out cylinders 10 and 10 are pivotally supported by the bearing portion 6. It is configured to be driven up and down.

１１は杭掴み装置であり、この杭掴み装置１１は昇降体９の下方にあって該昇降体９に対して旋回自在に配備されている。図３は施工時の状態を示す側面図であり、上記昇降体９の内方にオーガケーシング１２と該オーガケーシング１２の外周部に固着された固定板１３，１３とが挿通されて、チャック機構１４により該固定板１３，１３が昇降体９に強固に支持固定されている。１５はオーガ掘削機、１６はオーガであり、オーガ掘削機１５の起動時にオーガ１６が回動して地盤の掘削を行う。   Reference numeral 11 denotes a pile gripping device, and this pile gripping device 11 is disposed below the lifting body 9 and is pivotable with respect to the lifting body 9. FIG. 3 is a side view showing a state at the time of construction. An auger casing 12 and fixing plates 13 and 13 fixed to the outer peripheral portion of the auger casing 12 are inserted into the elevating body 9 so that a chuck mechanism is inserted. The fixing plates 13 and 13 are firmly supported and fixed to the elevating body 9 by 14. 15 is an auger excavator and 16 is an auger. When the auger excavator 15 is started, the auger 16 rotates to excavate the ground.

図４は杭掴み装置１１によるオーガケーシング１２の固定構造を示す要部平断面図であり、図３のＡ−Ａ線に沿って切断した図である。前記チャック機構１４内に形成された空間部内に挿通されたオーガケーシング１２の相対向する外周部に、所定の厚みを保持して径方向に伸びるとともに上下方向に延長する長大な固定板１３，１３が固着されている。   FIG. 4 is a plan cross-sectional view of a principal part showing a fixing structure of the auger casing 12 by the pile gripping device 11, and is a view cut along the line AA in FIG. Long fixed plates 13, 13 that extend in the radial direction and extend in the vertical direction while maintaining a predetermined thickness on the opposing outer peripheral portions of the auger casing 12 inserted in the space formed in the chuck mechanism 14. Is fixed.

１７は地盤内に圧入，引抜すべき鋼矢板であり、この鋼矢板１７の凹型に形成された中央部１７ａが前記オーガケーシング１２の外周部に近接配置され、該鋼矢板１７の継手部１７ｂ，１７ｂが前記固定板１３，１３に接する位置に配置されている。チャック機構１４には２個の固定側チャック爪１８，１９と、該固定側チャック爪１８，１９と対向する位置に可動側チャック爪２０，２１とが配置されていて、可動側チャック爪２０，２１に内蔵されたチャックシリンダ２２，２３の押圧力により可動側チャック爪２０，２１を用いて鋼矢板１７の継手部１７ｂ，１７ｂを固定側チャック爪１８，１９方向に押動して該鋼矢板１７の継手部１７ｂ，１７ｂを固定板１３，１３に強固にチャックしてオーガ掘削時の回転反力を得てから、オーガ１６による掘削と前記杭圧入引抜シリンダ１０，１０の併用により鋼矢板１７の地盤内への圧入と引抜動作を行うように構成されている。   Reference numeral 17 denotes a steel sheet pile to be press-fitted into and extracted from the ground, and a central portion 17a formed in a concave shape of the steel sheet pile 17 is disposed close to the outer peripheral portion of the auger casing 12, and a joint portion 17b of the steel sheet pile 17 is provided. 17 b is arranged at a position in contact with the fixed plates 13 and 13. The chuck mechanism 14 is provided with two fixed side chuck claws 18, 19 and movable side chuck claws 20, 21 at positions facing the fixed side chuck claws 18, 19. 21. The steel sheet piles are moved by pressing the joint portions 17b, 17b of the steel sheet pile 17 in the direction of the fixed chuck claws 18, 19 using the movable chuck claws 20, 21 by the pressing force of the chuck cylinders 22, 23 incorporated in the cylinder 21. After the joint portions 17b and 17b of 17 are firmly chucked to the fixed plates 13 and 13 to obtain the rotational reaction force during auger excavation, the steel sheet pile 17 is combined by excavation by the auger 16 and the pile press-fitting cylinders 10 and 10. It is configured to perform press-fitting and drawing operations into the ground.

かかる構成によれば、建込用の鋼矢板１７を地盤に圧入する際の基本操作として、先ず反力掴み装置３に内蔵されたクランプシリンダを用いて既設の鋼矢板をクランプしてから杭掴み装置１１に内蔵されたチャックシリンダ２２，２３により可動側チャック爪２０，２１を固定側チャック爪１８，１９方向に押動して、鋼矢板１７の継手部１７ｂ，１７ｂを２箇所で固定板１３，１３に強固にチャックすることでオーガ掘削時の回転反力を得ることができる。そしてオーガ掘削機１５を起動するとともに杭圧入引抜シリンダ１０，１０を駆動して、オーガ１６による掘削と杭圧入引抜シリンダ１０，１０の併用により新たな鋼矢板１７の地盤への圧入を行う。   According to such a configuration, as a basic operation when the steel sheet pile 17 for erection is press-fitted into the ground, first the existing steel sheet pile is clamped using the clamp cylinder built in the reaction force gripping device 3 and then the pile gripping is performed. The movable chuck claws 20 and 21 are pushed in the directions of the fixed chuck claws 18 and 19 by the chuck cylinders 22 and 23 built in the apparatus 11, and the joint portions 17b and 17b of the steel sheet pile 17 are fixed at the fixed plate 13 at two places. , 13 can be used to obtain a rotational reaction force during auger excavation. Then, the auger excavator 15 is activated and the pile press-fitting cylinders 10 and 10 are driven, and a new steel sheet pile 17 is press-fitted into the ground by excavating with the auger 16 and using the pile press-fitting cylinders 10 and 10 together.

杭圧入引抜シリンダ１０，１０のストローク分だけ圧入すると、反力掴み装置３に内蔵のクランプシリンダを開放し、圧入引抜機本体１を搭載しているスライドベース４に摺動自在に配備されている台座２を進行方向Ｆに沿ってスライドさせ、再度クランプシリンダを用いて既設の鋼矢板をクランプしてから杭掴み装置１１のチャックシリンダ２２，２３によるチャックを解き、圧入引抜機本体１をスライドさせてから杭掴み装置１１に新たな鋼矢板１７をセットして前記と同様の操作を繰り返して継続的に杭圧入引抜作業を実施する。   When the pile press-fit pull-out cylinders 10 and 10 are press-fitted for the stroke, the built-in clamp cylinder in the reaction force gripping device 3 is opened, and is slidably disposed on the slide base 4 on which the press-fit pull-out machine main body 1 is mounted. Slide the pedestal 2 along the direction of travel F, clamp the existing steel sheet pile again using the clamp cylinder, release the chuck by the chuck cylinders 22 and 23 of the pile gripping device 11, and slide the press-fitting machine body 1 After that, a new steel sheet pile 17 is set in the pile gripping device 11, and the same operation as described above is repeated to continuously carry out the pile press-in / pull-out operation.

図５は本発明の他の実施例を示す要部平断面図であり、杭掴み装置１１によるオーガケーシング１２のチャック手段は前記図４に示すチャック手段と基本的に一致しているため、同一の符号を付して表示してある。図４と図５の実施例では、鋼矢板１７の高さ寸法Ｌが相違しており、両実施例ともに固定板１３，１３がオーガケーシング１２の断面中心位置から寸法ａだけオフセットさせた位置にある。また、高さ寸法Ｌの異なる２種類の鋼矢板１７の凹型に形成された中央部１７ａに近接してオーガケーシング１２を配置することができる。図６は本発明を適用した圧入引抜機本体１に、オーガ掘削機１５駆動用の油圧ホース巻取装置２５を配置した側面図である。   FIG. 5 is a fragmentary plan sectional view showing another embodiment of the present invention. The chuck means of the auger casing 12 by the pile gripping device 11 is basically the same as the chuck means shown in FIG. It is displayed with a reference numeral. 4 and 5, the height dimension L of the steel sheet pile 17 is different, and in both embodiments, the fixed plates 13, 13 are at a position offset from the central position of the cross section of the auger casing 12 by the dimension a. is there. Further, the auger casing 12 can be disposed in the vicinity of the central portion 17a formed in the concave shape of the two types of steel sheet piles 17 having different height dimensions L. FIG. 6 is a side view in which a hydraulic hose take-up device 25 for driving the auger excavator 15 is arranged in the press-fitting / pulling machine body 1 to which the present invention is applied.

以上詳細に説明したように、本発明によればオーガによる掘削と杭圧入引抜機の圧入引抜シリンダの併用により鋼矢板を地盤内に圧入，引抜する工法に用いられるオーガケーシング自体が直接チャックシリンダの過大な押圧力によって強固にチャックされることがないため、該オーガケーシングの不規則な変形とかオーガの動作不良を引き起こす惧れがなく、操作時における鋼矢板の土砂による閉塞を抑えて効率良く施工することができるので、当該杭圧入引抜機を利用した永久構造物の外、特に硬質地盤でのオーガによる掘削と圧入引抜シリンダの併用により、鋼矢板、Ｈ鋼杭、その他の超長尺、超大径の鋼矢板及び鋼管杭の圧入，引き抜き工事とか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も広く利用することができる。   As described in detail above, according to the present invention, the auger casing itself used for the method of press-fitting and pulling steel sheet piles into the ground by using the auger excavation and the press-fitting cylinder of the pile press-fitting and pulling machine is directly connected to the chuck cylinder. Since it is not firmly chucked by excessive pressing force, there is no risk of irregular deformation of the auger casing or malfunction of the auger, and efficient construction with the steel sheet pile blocked by earth and sand during operation. As a result, it is possible to use steel piles, H-steel piles, other super-long, super-large, in addition to permanent structures using the pile press-fit puller, especially by excavating with auger on hard ground and press-pull-out cylinders. Can be widely used as support piles for temporary construction such as press-fitting, drawing-out work, revetment work, revetment work, mountain retaining work, and cut-off work, etc. Kill.

本発明を適用した圧入引抜機本体を全体的に示す側面図。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 図１の平面図。The top view of FIG. 施工時の状態を示す側面図。The side view which shows the state at the time of construction. オーガケーシングの固定構造を示す要部平断面図。The principal part plane sectional view which shows the fixation structure of an auger casing. 本発明の他の実施例を示す要部平断面図。The principal part plane sectional view which shows the other Example of this invention. 本発明を適用した圧入引抜機本体にオーガ掘削機駆動用の油圧ホース巻取装置を配置した側面図。The side view which has arrange | positioned the hydraulic hose winding device for auger excavator drive to the press-fit pulling machine main body to which this invention is applied. 従来のオーガ併用タイプの杭圧入引抜機におけるチャック機構の構造を示す要部平断面図。The principal part plane sectional view which shows the structure of the chuck mechanism in the conventional auger combined use type pile press-fit drawing machine.

符号の説明Explanation of symbols

１…圧入引抜機本体
２…台座
３…反力掴み装置
４…スライドベース
５…支持アーム
６…軸受部
７…ガイドフレーム
８…傾動シリンダ
９…昇降体
１０…杭圧入引抜シリンダ
１１…杭掴み装置
１２…オーガケーシング
１３…固定板
１４…チャック機構
１５…オーガ掘削機
１６…オーガ
１７…鋼矢板
１７ａ…中央部
１７ｂ…継手部
１８，１９…固定側チャック爪
２０，２１…可動側チャック爪
２２，２３…チャックシリンダ
２５…油圧ホース巻取装置 DESCRIPTION OF SYMBOLS 1 ... Press fit puller main body 2 ... Base 3 ... Reaction force gripping device 4 ... Slide base 5 ... Support arm 6 ... Bearing part 7 ... Guide frame 8 ... Tilt cylinder 9 ... Lifting body 10 ... Pile press fit pulling cylinder 11 ... Pile gripping device DESCRIPTION OF SYMBOLS 12 ... Auger casing 13 ... Fixed plate 14 ... Chuck mechanism 15 ... Auger excavator 16 ... Auger 17 ... Steel sheet pile 17a ... Central part 17b ... Joint part 18, 19 ... Fixed side chuck nail 20, 21 ... Movable side chuck nail 22, 23 ... Chuck cylinder 25 ... Hydraulic hose winding device

Claims (4)

下方に反力掴み装置を配設して既設の鋼矢板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、該杭掴み装置内に挿通されたオーガケーシングをチャックするチャック機構とを具備してなり、オーガによる掘削と杭圧入引抜シリンダの併用により鋼矢板を地盤内に圧入，引抜する杭圧入引抜機において、
前記杭掴み装置内に挿通されたオーガケーシングの相対向する外周部に、所定の厚みを保持して径方向に伸びるとともに上下方向に延長する長大な固定板を固着し、鋼矢板の凹型に形成された中央部をオーガケーシングの外周部に近接配置するとともに該鋼矢板の継手部を固定板に接する位置に配置し、チャック機構により継手部を固定板に強固にチャックしてオーガ掘削時の回転反力を得ることを特徴とする杭圧入工法。 A reaction force gripping device is placed below and a base that is placed on an existing steel sheet pile, and a slide base that is slidably disposed on the base and is pivotable about a vertical axis. An installed guide frame, an elevating body attached to the guide frame so as to be movable up and down and attached with a pile press-in / out cylinder, a swingable pile gripping device disposed below the elevating body, and an inside of the pile gripping device In the pile press-in / draw-out machine, which comprises a chuck mechanism for chucking the auger casing inserted into the pile, and presses and pulls the steel sheet pile into and out of the ground by the combined use of excavation by the auger and the pile press-fit pull-out cylinder,
A long fixed plate that extends in the radial direction and maintains a predetermined thickness is fixed to the opposing outer peripheral portions of the auger casing inserted into the pile gripping device, and formed into a concave shape of a steel sheet pile. The central part is placed close to the outer periphery of the auger casing and the joint part of the steel sheet pile is placed in contact with the fixed plate, and the joint part is firmly chucked to the fixed plate by the chuck mechanism and rotated during auger excavation. Pile press-fit method characterized by obtaining reaction force. 下方に反力掴み装置を配設して既設の鋼矢板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、該杭掴み装置内に挿通されたオーガケーシングをチャックするチャック機構とを具備してなり、オーガによる掘削と杭圧入引抜シリンダの併用により鋼矢板を地盤内に圧入，引抜する杭圧入引抜機において、
前記杭掴み装置内に挿通されたオーガケーシングの相対向する外周部に、所定の厚みを保持して径方向に伸びるとともに上下方向に延長する長大な固定板を固着し、チャック機構により鋼矢板の継手部を固定板に強固にチャックしてオーガ掘削時の回転反力を得ることを特徴とする杭圧入引抜機。 A reaction force gripping device is placed below and a base that is placed on an existing steel sheet pile, and a slide base that is slidably disposed on the base and is pivotable about a vertical axis. An installed guide frame, an elevating body attached to the guide frame so as to be movable up and down and attached with a pile press-in / out cylinder, a swingable pile gripping device disposed below the elevating body, and an inside of the pile gripping device In the pile press-in / draw-out machine, which comprises a chuck mechanism for chucking the auger casing inserted into the pile, and presses and pulls the steel sheet pile into and out of the ground by the combined use of excavation by the auger and the pile press-in / pull-out cylinder.
A long fixing plate that extends in the radial direction while maintaining a predetermined thickness is fixed to the opposing outer peripheral portions of the auger casing inserted into the pile gripping device, and the steel sheet pile is attached by a chuck mechanism. A pile press-fitting and extracting machine characterized in that the joint part is firmly chucked to a fixed plate to obtain a rotational reaction force during auger excavation. 前記固定板をオーガケーシングの断面中心位置から所定寸法だけオフセットさせた位置に固着した請求項２記載の杭圧入引抜機。   The pile press-fitting / drawing machine according to claim 2, wherein the fixing plate is fixed at a position offset by a predetermined dimension from a cross-sectional center position of the auger casing. 杭掴み装置内のチャック機構に、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矢板の継手部を固定板方向に押動する可動側チャック爪を配置した請求項２記載の杭圧入引抜機。   A movable side that moves the joint of the steel sheet pile for building in the direction of the fixed plate by the pressing force of the chuck cylinder at the position facing the fixed side chuck claw and the fixed side chuck claw. The pile press-fitting and extracting machine according to claim 2, wherein chuck claws are arranged.
JP2006071430A 2006-03-15 2006-03-15 Pile press-in method and pile press-out machine Expired - Fee Related JP4719041B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006071430A JP4719041B2 (en) 2006-03-15 2006-03-15 Pile press-in method and pile press-out machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006071430A JP4719041B2 (en) 2006-03-15 2006-03-15 Pile press-in method and pile press-out machine

Publications (2)

Publication Number Publication Date
JP2007247245A true JP2007247245A (en) 2007-09-27
JP4719041B2 JP4719041B2 (en) 2011-07-06

Family

ID=38591832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006071430A Expired - Fee Related JP4719041B2 (en) 2006-03-15 2006-03-15 Pile press-in method and pile press-out machine

Country Status (1)

Country Link
JP (1) JP4719041B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016094805A (en) * 2014-11-17 2016-05-26 株式会社コーワン Pile press-in/pull-out machine
CN108505520A (en) * 2018-04-28 2018-09-07 中电建水环境治理技术有限公司 Clamping jaw device and hydraulic pressure pile-grafting machine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0321721A (en) * 1989-06-15 1991-01-30 Giken Seisakusho Co Ltd Pile holding mechanism
JPH0346536A (en) * 1989-07-14 1991-02-27 Suzuki Motor Corp Idle operation controller for vehicle
JPH11336076A (en) * 1998-05-25 1999-12-07 Sumitomo Metal Ind Ltd Apparatus and method for holding hat-shaped earth-retaining steel
JPH11350482A (en) * 1998-06-04 1999-12-21 Giken Seisakusho Co Ltd Pile pressing in device
JP2002161690A (en) * 2000-11-24 2002-06-04 Giken Seisakusho Co Ltd Auger device and pile jacking making use thereof
JP2002167758A (en) * 2000-12-04 2002-06-11 Giken Seisakusho Co Ltd Pile press-in machine and pile press-in method
JP2005127053A (en) * 2003-10-24 2005-05-19 Giken Seisakusho Co Ltd Z-shaped steel sheet pile press-fitting apparatus and z-shaped steel sheet pile press-fitting method
JP2006104727A (en) * 2004-10-04 2006-04-20 Giken Seisakusho Co Ltd Press-fitting machine for steel sheet pile

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0321721A (en) * 1989-06-15 1991-01-30 Giken Seisakusho Co Ltd Pile holding mechanism
JPH0346536A (en) * 1989-07-14 1991-02-27 Suzuki Motor Corp Idle operation controller for vehicle
JPH11336076A (en) * 1998-05-25 1999-12-07 Sumitomo Metal Ind Ltd Apparatus and method for holding hat-shaped earth-retaining steel
JPH11350482A (en) * 1998-06-04 1999-12-21 Giken Seisakusho Co Ltd Pile pressing in device
JP2002161690A (en) * 2000-11-24 2002-06-04 Giken Seisakusho Co Ltd Auger device and pile jacking making use thereof
JP2002167758A (en) * 2000-12-04 2002-06-11 Giken Seisakusho Co Ltd Pile press-in machine and pile press-in method
JP2005127053A (en) * 2003-10-24 2005-05-19 Giken Seisakusho Co Ltd Z-shaped steel sheet pile press-fitting apparatus and z-shaped steel sheet pile press-fitting method
JP2006104727A (en) * 2004-10-04 2006-04-20 Giken Seisakusho Co Ltd Press-fitting machine for steel sheet pile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016094805A (en) * 2014-11-17 2016-05-26 株式会社コーワン Pile press-in/pull-out machine
CN108505520A (en) * 2018-04-28 2018-09-07 中电建水环境治理技术有限公司 Clamping jaw device and hydraulic pressure pile-grafting machine
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

Also Published As

Publication number Publication date
JP4719041B2 (en) 2011-07-06

Similar Documents

Publication Publication Date Title
JP6081100B2 (en) Existing pile pulling device
JP4653127B2 (en) Auger combined steel sheet pile press-in method
JPWO2006041154A1 (en) Underground obstacle removal apparatus, excavation unit, and underground obstacle removal method using the same
JP4719041B2 (en) Pile press-in method and pile press-out machine
JP4044875B2 (en) Steel pipe pile press-fitting and drawing machine
JP6731507B1 (en) Pile press-fitting machine and pile press-fitting method
JP2003213686A (en) Construction method of earth retaining wall
JP6715663B2 (en) Steel pipe pile construction method
JP3239951B2 (en) Pile injection system and pile injection method
JP2010031523A (en) Vertical shaft excavator
JP3536033B2 (en) Steel pipe pile press-in and pull-out machine
JP2006336241A (en) Pile construction method and pile construction system
JP4588732B2 (en) Tubing device with reaction force weight
JP3163062B2 (en) Pile press-in device
JP2007197932A (en) Pile extracting device and pile extracting method
JPH08100436A (en) Rotary press-in device for settlement correcting steel pipe pile
JP3921299B2 (en) Pile press-fitting device
JP3947976B2 (en) Method for constructing earth retaining bodies and construction apparatus for earth retaining bodies used therefor
JP4955478B2 (en) Pile ground improvement system
JP2000002070A (en) Pile jacking device
JP4076485B2 (en) Casing driver
JPH07127060A (en) Pile pressing-in machine and pile pressing-in and drawing-out construction method
JP2001262571A (en) Penetration method for rotary pile
JPH11229740A (en) Subsoil excavation method and device
JP3728449B1 (en) Underground obstacle removal apparatus and underground obstacle removal method using the same

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20081127

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100601

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: 20110324

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110401

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140408

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees