JPH076192Y2 - Jet nozzle mounting device - Google Patents

Jet nozzle mounting device

Info

Publication number
JPH076192Y2
JPH076192Y2 JP1988077854U JP7785488U JPH076192Y2 JP H076192 Y2 JPH076192 Y2 JP H076192Y2 JP 1988077854 U JP1988077854 U JP 1988077854U JP 7785488 U JP7785488 U JP 7785488U JP H076192 Y2 JPH076192 Y2 JP H076192Y2
Authority
JP
Japan
Prior art keywords
pile
jet
jet nozzle
pipe
press
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 - Lifetime
Application number
JP1988077854U
Other languages
Japanese (ja)
Other versions
JPH01180541U (en
Inventor
北村  精男
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.)
GIKEN LTD.
Original Assignee
GIKEN 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 GIKEN LTD. filed Critical GIKEN LTD.
Priority to JP1988077854U priority Critical patent/JPH076192Y2/en
Publication of JPH01180541U publication Critical patent/JPH01180541U/ja
Application granted granted Critical
Publication of JPH076192Y2 publication Critical patent/JPH076192Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は鋼矢板、鋼管杭、H形鋼などの鋼杭を地盤に圧
入する際の抵抗を軽減させるために、杭の先端付近に圧
力水を噴出させるジェットノズルの取付装置に関する。
[Detailed Description of the Invention] (Industrial field of application) The present invention applies pressure near the tip of a pile in order to reduce the resistance when a steel pile such as a steel sheet pile, steel pipe pile, and H-section steel is pressed into the ground. The present invention relates to a device for mounting a jet nozzle that ejects water.

(従来の技術) 杭を杭圧入引抜機やバイブロハンマ等で硬質地盤や砂地
盤に圧入する場合、掘進抵抗を軽減させて杭圧入を容易
にするためにウォータージェットパイプまたはジェット
ホースを杭表面に添わせて配設し、その先端より圧力水
を噴出して圧入する場合がある。
(Prior art) When a pile is press-fitted into hard ground or sand ground with a pile press-in / pull-out machine or vibro hammer, a water jet pipe or jet hose is added to the pile surface to reduce the excavation resistance and facilitate the pile press-fitting. There is a case where they are arranged together and pressure water is jetted from the tip thereof to be pressed in.

ジェットパイプを使用する場合、まずジェットパイプ先
端にジェットノズルを溶接し、ジェットパイプと杭上端
を溶接もしくはボルト締めした後、適宜間隔に杭に溶接
したパイプバンドでジェットパイプを固定していた。杭
の圧入が終了するとこの杭上端の溶接部等を切り離して
ジェットパイプを引抜き、ジェットノズルと共に回収し
ていた。
When using a jet pipe, first, a jet nozzle was welded to the tip of the jet pipe, the jet pipe and the upper end of the pile were welded or bolted together, and then the jet pipe was fixed with pipe bands welded to the pile at appropriate intervals. When the press-fitting of the pile was completed, the welded part at the top of the pile was cut off, the jet pipe was pulled out, and it was collected together with the jet nozzle.

その他、ジェットホースを使用する方法では、まずジェ
ットノズルを杭下端に簡易に溶接し、ジェットホース下
端をジェットノズルに固定する。さらに、ジェットノズ
ル溶接時にワイヤをジェットノズルに取付けておき、杭
圧入作業終了時にジェットホースを回収すると共に地上
よりワイヤを引き上げることによりジェットノズルを回
収していた。
In addition, in the method using the jet hose, first, the jet nozzle is simply welded to the lower end of the pile, and the lower end of the jet hose is fixed to the jet nozzle. Further, the wire is attached to the jet nozzle during welding of the jet nozzle, and the jet hose is collected at the end of the press-fitting work for the pile and the jet nozzle is collected by pulling up the wire from the ground.

(考案が解決しようとする問題点) 上述のような方法では、杭とジェットパイプの各上部を
溶接したり、杭下端にジェットノズルを溶接する作業が
煩雑で時間的なロスを生じていた。
(Problems to be Solved by the Invention) In the above-described method, the work of welding the upper parts of the pile and the jet pipe or the work of welding the jet nozzle to the lower end of the pile is complicated and causes a time loss.

また、圧入杭にジェットパイプ固定用のパイプバンドを
適宜間隔で多数個溶接することも時間がかかり作業能率
を悪くしていた。また、このパイプバンドはジェットパ
イプ引抜時には杭とともに地中に残されるためコストア
ップの原因ともなっていた。
Further, welding a large number of pipe bands for fixing jet pipes to the press-fitting pile at appropriate intervals also takes time and deteriorates work efficiency. Also, this pipe band was left behind in the ground along with the piles when the jet pipe was pulled out, which was a cause of cost increase.

さらに、上記のようにジェットホースのジェットノズル
は杭に溶接するが、この時の溶接技術は非常に難しく長
年の熟練を必要としていた。即ち、溶接過多の場合は作
業終了後ワイヤを引き上げてジェットノズルを回収しよ
うとしてもジェットノズルが杭より剥離しないことがあ
った。この反対に溶接過少の場合は、杭の圧入作業中に
ジェットノズルが杭より剥離した。
Furthermore, the jet nozzle of the jet hose is welded to the pile as described above, but the welding technique at this time is very difficult and requires many years of skill. That is, in the case of excessive welding, the jet nozzle may not be separated from the pile even if the wire is pulled up and the jet nozzle is recovered after the work is completed. On the contrary, in the case of insufficient welding, the jet nozzle peeled off from the pile during the press-fitting operation of the pile.

本考案は以上のような問題点を解決させ、迅速かつ簡便
な作業によって杭にジェットパイプを固定させることを
可能とし、さらに杭圧入後ジェットノズルを簡便に回収
しうるジェットノズル取付装置を提供することを目的と
する。
The present invention solves the above problems and provides a jet nozzle mounting device that enables a jet pipe to be fixed to a pile by a quick and simple operation and that can easily collect the jet nozzle after press-fitting the pile. The purpose is to

(問題を解決するための手段) 上記目的を達成するために本考案は、圧入杭表面に添わ
せて配設したジエツトパイプ又はジエツトホースの先端
にジツエツトノズルを構成し、このジエツトノズルの下
端には圧入杭の先端を挟持する杭挟持体を回動自在に取
付け、上記ジエツトノズル内部の流体室にピストン部を
内装し、このピストン部により上記杭挟持体を回動操作
することを特徴とする。
(Means for Solving the Problem) In order to achieve the above-mentioned object, the present invention comprises a jet nozzle at the tip of a jet pipe or a hose arranged along the surface of the press-fitting pile, and the lower end of this jet nozzle is a press-fitting pile. It is characterized in that a pile holding body for holding the tip end is rotatably attached, a piston portion is installed in a fluid chamber inside the jet nozzle, and the pile holding body is rotated by the piston portion.

(作用) ジェットパイプあるいはジェットホース下端に設けたジ
ェットノズル内の杭挾持体の回動機構が作動すると、杭
挾持体の一端が押圧され回動運動する。杭の圧入時に
は、杭挾持体を回動させ、杭挾持体とジェットノズルの
間で杭の先端を挾持し、ジェットノズルを杭の先端に固
定して圧入作業を行う。また、杭の圧入終了時には、回
動機構を初期位置に復帰させることで杭挾持体が逆に回
動し、杭挾持体による杭の挾持状態が解除されるので、
ジェットパイプあるいはジェットホースは容易に地中よ
り引き抜ける。
(Operation) When the rotating mechanism of the pile holding body in the jet nozzle provided at the lower end of the jet pipe or the jet hose is activated, one end of the pile holding body is pressed to make a rotary movement. When press-fitting the pile, the pile holding body is rotated, the tip of the pile is held between the pile holding body and the jet nozzle, and the jet nozzle is fixed to the tip of the pile to perform the press-fitting work. Also, at the end of press-fitting the pile, the pile holding body is rotated in reverse by returning the turning mechanism to the initial position, and the holding state of the pile by the pile holding body is released.
Jet pipes or jet hoses can easily be pulled out from the ground.

(実施例) 次に図面に基づいて本考案の実施例を詳細に説明する。
第1図は第1実施例の取付状態を示す正面図、第2図は
同杭挾持体で杭を挾持した状態を示す縦断正面図、第3
図は同杭挾持体が杭を解放した状態を示す縦断正面図、
第4図は第2図のIV−IV線断面図及び第5図は第2実施
例の縦断正面図である。
(Embodiment) Next, an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view showing a mounted state of the first embodiment, FIG. 2 is a vertical sectional front view showing a state where a pile is held by the pile holding body, and FIG.
The figure shows a vertical front view showing the state where the pile holding body releases the pile,
FIG. 4 is a sectional view taken along line IV-IV in FIG. 2 and FIG. 5 is a vertical sectional front view of the second embodiment.

圧入杭Pの表面に添って、内部に導水管6を有するジェ
ットパイプ5を配設し、このジェットパイプ5の下端に
ジェットノズル1を取り付ける。このジェットノズル1
の取り付けは、溶接等でジェットパイプ5に一体に固定
してもよく、両者の取付部にネジを構成しジェットノズ
ル1を着脱自在に取り付けることもできる。
A jet pipe 5 having a water conduit 6 inside is arranged along the surface of the press-fitting pile P, and the jet nozzle 1 is attached to the lower end of the jet pipe 5. This jet nozzle 1
The jet nozzle 1 may be attached integrally to the jet pipe 5 by welding or the like, or the jet nozzle 1 may be detachably attached by forming a screw in the attaching portion of both.

本実施例ではジェットパイプを使用したが、これに代え
てジェットホースを使用してもよい。
Although the jet pipe is used in this embodiment, a jet hose may be used instead of the jet pipe.

ジェットノズル1内部にピストン部2を内設し、該ピス
トン部2に、上記導水管6内に配管された流体圧パイプ
7下端を接続させている。
A piston portion 2 is provided inside the jet nozzle 1, and a lower end of a fluid pressure pipe 7 connected to the water guide pipe 6 is connected to the piston portion 2.

ピストン部2はピストン2a、ピストンロッド2b、流体室
2c及び下部室2e内に設けられたスプリング2dよりなる。
ピストンロッド2bは流体圧パイプ7より流体室2cに流入
する流体の圧力で下降し、上記スプリング2dの復元力に
より上昇する。
The piston part 2 includes a piston 2a, a piston rod 2b, and a fluid chamber.
2c and a spring 2d provided in the lower chamber 2e.
The piston rod 2b is lowered by the pressure of the fluid flowing from the fluid pressure pipe 7 into the fluid chamber 2c, and is raised by the restoring force of the spring 2d.

また、ジェットノズル1下端には支持体9を固定し、こ
の支持体9上に設けた軸9aに略L字状の杭挾持体3を回
動自在に軸着する。
A support body 9 is fixed to the lower end of the jet nozzle 1, and a substantially L-shaped pile holding body 3 is rotatably attached to a shaft 9a provided on the support body 9.

この杭挾持体3の端部は上記ピストン部2のピストンロ
ッド2bの力点部3aであり、かつ杭挾持体3の他端には凹
凸状の杭の挾持歯3bを形成し、この挾持歯3bに対応する
ジェットノズル1の側面にも同様の挾持歯8を構成す
る。
The end portion of the pile holding body 3 is the force point portion 3a of the piston rod 2b of the piston portion 2, and the other end of the pile holding body 3 is formed with the holding tooth 3b of the uneven pile, and the holding tooth 3b is formed. Corresponding gripping teeth 8 are also formed on the side surface of the jet nozzle 1 corresponding to.

次にこのように構成した本実施例の作用を説明する。Next, the operation of this embodiment configured as described above will be described.

杭Pの圧入に際して、まず下端にジェットノズル1を固
定したジェットパイプ5を、杭P表面に添って配設す
る。
When press-fitting the pile P, first, the jet pipe 5 having the jet nozzle 1 fixed to the lower end is arranged along the surface of the pile P.

ピストン部2の流体室2cに流体を流入させると、ピスト
ン2aとピストンロッド2bはスプリング2dの弾発力に打ち
勝って下降し、ピストンロッド2bの先端部が杭挾持体3
の力点部3aを押圧する。
When the fluid is introduced into the fluid chamber 2c of the piston portion 2, the piston 2a and the piston rod 2b overcome the resilient force of the spring 2d and descend, and the tip end of the piston rod 2b moves to the pile holding body 3
The force point portion 3a of is pressed.

すると杭挾持体3は、支持体9に設けられた軸9aを中心
として第2図中矢印方向に回転し杭挾持体3先端一側に
設けられた挾持歯3bが杭Pを挾持し、その対面側に設け
られたジェットノズル1の挾持歯8と相俟って杭Pを確
実に固定する。
Then, the pile holding body 3 rotates about the shaft 9a provided on the support body 9 in the direction of the arrow in FIG. 2, and the holding teeth 3b provided on one side of the tip of the pile holding body 3 hold the pile P, The pile P is securely fixed together with the holding teeth 8 of the jet nozzle 1 provided on the opposite side.

その後、杭Pを公知の杭圧入引抜機Aで圧入する。この
とき地上より送出された圧力水が導水管6を通ってジェ
ット噴出口4より噴出し杭P表面を伝わって地盤に流入
し地盤を軟化させて杭の掘進時の抵抗を軽減する。な
お、ジェット噴出口4は、本実施例のように上方向に限
らず、横方向、下方向等のいずれの方向に設けることも
できる。
After that, the pile P is press-fitted by the known pile press-fitting / extracting machine A. At this time, the pressure water sent from the ground passes through the water guide pipe 6 and is jetted from the jet outlet 4 and flows along the surface of the pile P to flow into the ground to soften the ground and reduce the resistance when the pile is dug. The jet ejection port 4 is not limited to the upward direction as in the present embodiment, but may be provided in any of the lateral direction and the downward direction.

杭Pの圧入が終了しジェットノズル1を引き抜く際に
は、上記の場合とは逆に流体圧パイプ7内の圧力を下げ
ると、ピストン部2下方に設けられたスプリング2dの復
元力によりピストン2aは上昇して、ピストンロッド2bの
先端は杭挾持体3の力点部3aから離れる。
When the pressure in the fluid pressure pipe 7 is lowered contrary to the above case when the press-fitting of the pile P is completed and the jet nozzle 1 is pulled out, the piston 2a is restored by the restoring force of the spring 2d provided below the piston portion 2. Rises and the tip of the piston rod 2b moves away from the force application point 3a of the pile holding body 3.

これにより力点部3aに対するピストンロッド2bの押圧力
はなくなり、杭挾持体3は自重によって軸9aを支点とし
て第3図矢印方向に回転をして初期状態にもどる(第3
図参照)。この状態でジェットパイプ5を引き抜くとジ
ェットノズル1は杭挾持体3とともに地上に回収可能と
なる。
As a result, the pressing force of the piston rod 2b against the force application point 3a disappears, and the pile holding body 3 rotates in the direction of the arrow in FIG.
See figure). When the jet pipe 5 is pulled out in this state, the jet nozzle 1 can be collected on the ground together with the pile holding body 3.

以上の操作を繰り返すことによりジェットノズル1を圧
入する杭に順次迅速に取付け、取外しを行うことが可能
となる。
By repeating the above operation, the jet nozzle 1 can be sequentially attached to and removed from the pile into which the jet nozzle 1 is press-fitted.

第5図は第2実施例の断面図であり、杭挾持体31の軸9a
を後方に配置し、かつピストンロッド21の下端を杭挾持
体31の力点部3aに回動自在に接続したものである。本実
施例によればピストン2内の流体室2cの流体圧が高圧に
なるとピストンロッド21下端が杭挾持体3の力点部3aを
押圧して杭挾持歯3bを開口させ、逆に流体室2cの流体圧
が低圧になるとピストンロッド21が上方に移動して杭挾
持歯3bが杭Pを挾持する。他の部分の各構成およびその
作用効果は第1実施例と同じである。
FIG. 5 is a sectional view of the second embodiment, and the shaft 9a of the pile holding body 31.
Is arranged rearward, and the lower end of the piston rod 21 is rotatably connected to the force point portion 3a of the pile holding body 31. According to this embodiment, when the fluid pressure in the fluid chamber 2c in the piston 2 becomes high, the lower end of the piston rod 21 presses the force point portion 3a of the pile holding body 3 to open the pile holding teeth 3b, and conversely the fluid chamber 2c. When the fluid pressure becomes low, the piston rod 21 moves upward and the pile holding teeth 3b hold the pile P. The configuration of each of the other parts and the function and effect thereof are the same as in the first embodiment.

(考案の効果) 以上説明したように、本考案は杭の下方に存する杭挾持
体によって確実に杭を挾持できるため、従来のように杭
とジェットパイプやジェットホースを溶接しなくてもジ
ェットパイプ等は確実に杭と共に地中に掘進される。さ
らにパイプバンド等の取付具を使用することなく、ジェ
ットパイプやジェットホースを杭に固定することができ
るためジェットパイプ等の取付及び取外しが簡単に行え
る。
(Effect of the Invention) As described above, according to the present invention, since the pile holding body located below the pile can securely hold the pile, the jet pipe does not have to be welded to the jet pipe as in the conventional case. Etc. are surely dug into the ground with the pile. Further, since the jet pipe and the jet hose can be fixed to the pile without using a fixture such as a pipe band, the jet pipe and the like can be easily attached and detached.

その結果溶接等の作業を大幅に省略することが可能とな
ると共に、パイプバンド取付の手間と時間が大幅に削減
でき安価となり、杭圧入作業の能率を高める等の効果を
奏する。
As a result, the work such as welding can be largely omitted, and the labor and time for mounting the pipe band can be greatly reduced, resulting in low cost, and the effect of improving the efficiency of the pile press-fitting work can be achieved.

【図面の簡単な説明】[Brief description of drawings]

図面は本考案の実施例を示すもので、第1図は第1実施
例の取付状態を示す正面図、第2図は同杭挾持体で杭を
挾持した状態を示す縦断正面図、第3図は同杭挾持体が
杭を解放した状態を示す縦断正面図、第4図は第2図の
IV−IV線断面図及び第5図は第2実施例の縦断正面図で
ある。 1…ジェットノズル、2…ピストン部 2a…ピストン、2c…流体室 2b、21…ピストンロッド 2d…スプリング、3…杭挾持体 3a…力点部、3b…杭挾持歯 4…ジェット噴出口 5…ジェットパイプ、ジェットホース 7…流体圧パイプ、9…支持体
The drawings show an embodiment of the present invention. FIG. 1 is a front view showing a mounted state of the first embodiment, FIG. 2 is a vertical sectional front view showing a state where a pile is held by the pile holding body, and FIG. The figure is a vertical sectional front view showing the state where the pile holding body releases the pile, and Fig. 4 is the diagram of Fig. 2
A sectional view taken along the line IV-IV and FIG. 5 are longitudinal sectional front views of the second embodiment. 1 ... Jet nozzle, 2 ... Piston part 2a ... Piston, 2c ... Fluid chamber 2b, 21 ... Piston rod 2d ... Spring, 3 ... Pile holding body 3a ... Power point part, 3b ... Pile holding tooth 4 ... Jet ejection port 5 ... Jet Pipe, jet hose 7 ... Fluid pressure pipe, 9 ... Support

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】圧入杭表面に添わせて配設したジエツトパ
イプ又はジエツトホースの先端にジツエツトノズルを構
成し、このジエツトノズルの下端には圧入杭の先端を挟
持する杭挟持体を回動自在に取付け、上記ジエツトノズ
ル内部の流体室にピストン部を内装し、このピストン部
により上記杭挟持体を回動操作するジエツトノズル取付
装置。
1. A jet nozzle is formed at the tip of a jet pipe or a jet hose arranged along the surface of a press-fit pile, and a pile holder for sandwiching the tip of the press-fit pile is rotatably attached to the lower end of the jet nozzle. A jet nozzle mounting device in which a piston portion is provided inside a fluid chamber inside the jet nozzle, and the pile holding body is rotated by the piston portion.
JP1988077854U 1988-06-13 1988-06-13 Jet nozzle mounting device Expired - Lifetime JPH076192Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988077854U JPH076192Y2 (en) 1988-06-13 1988-06-13 Jet nozzle mounting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988077854U JPH076192Y2 (en) 1988-06-13 1988-06-13 Jet nozzle mounting device

Publications (2)

Publication Number Publication Date
JPH01180541U JPH01180541U (en) 1989-12-26
JPH076192Y2 true JPH076192Y2 (en) 1995-02-15

Family

ID=31302813

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988077854U Expired - Lifetime JPH076192Y2 (en) 1988-06-13 1988-06-13 Jet nozzle mounting device

Country Status (1)

Country Link
JP (1) JPH076192Y2 (en)

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US11330944B2 (en) 2009-03-13 2022-05-17 Omachron Intellectual Property Inc. Portable surface cleaning apparatus
US11571098B2 (en) 2006-12-12 2023-02-07 Omachron Intellectual Property Inc. Hand vacuum cleaner

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Publication number Priority date Publication date Assignee Title
JP2528071B2 (en) * 1993-05-27 1996-08-28 株式会社技研製作所 Pile clamping device for pile press-in / pull-out machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5243003A (en) * 1975-10-02 1977-04-04 Takeshi Kume Secondary steam generating apparatus of water cooling atomic reactor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11571098B2 (en) 2006-12-12 2023-02-07 Omachron Intellectual Property Inc. Hand vacuum cleaner
US11330944B2 (en) 2009-03-13 2022-05-17 Omachron Intellectual Property Inc. Portable surface cleaning apparatus
US11529031B2 (en) 2009-03-13 2022-12-20 Omachron Intellectual Property Inc. Portable surface cleaning apparatus
US11622659B2 (en) 2009-03-13 2023-04-11 Omachron Intellectual Property Inc. Portable surface cleaning apparatus

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