JPS6127525B2 - - Google Patents
Info
- Publication number
- JPS6127525B2 JPS6127525B2 JP11616181A JP11616181A JPS6127525B2 JP S6127525 B2 JPS6127525 B2 JP S6127525B2 JP 11616181 A JP11616181 A JP 11616181A JP 11616181 A JP11616181 A JP 11616181A JP S6127525 B2 JPS6127525 B2 JP S6127525B2
- Authority
- JP
- Japan
- Prior art keywords
- pile
- press
- fitting
- pull
- hydraulic cylinder
- 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
Links
- 230000007246 mechanism Effects 0.000 claims description 44
- 238000000605 extraction Methods 0.000 claims description 9
- 230000003068 static effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D11/00—Methods or apparatus specially adapted for both placing and removing sheet pile bulkheads, piles, or mould-pipes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Description
【発明の詳細な説明】
本装置は鋼矢板、Ｈ型鋼、鋼管杭、鋼管矢板及
びコンクリート杭等の杭を油圧による静的な力に
よつて無振動、無騒音で地中に圧入し、若しくは
地中より引抜くようにした杭圧入、引抜方法及び
その装置に関するものである。[Detailed description of the invention] This device press-fits piles such as steel sheet piles, H-beams, steel pipe piles, steel pipe sheet piles, and concrete piles into the ground without vibration or noise using hydraulic static force. This invention relates to a method for press-fitting and pulling out piles that are pulled out from the ground, and a device therefor.
近時、油圧による静的な力を利用した杭の圧
入、引抜装置が提供されているが、従来のこの種
装置にあつては、杭挾持部材とこの杭挾持部材を
上下動させる油圧シリンダよりなる杭圧入、引抜
機構は一組しか備えられていない。複数枚の杭を
同時に圧入し、若しくは引抜く場合には、各杭に
対して杭挾持部材を備えているが、これらの杭挾
持部材は共通の油圧シリンダにより一斉に上下動
させるので、結局、前記と同様に杭圧入、引抜機
構は一組しか備えられていないことになる。従つ
て杭挾持部材により杭を挾持する動作と、油圧シ
リンダの伸縮動作と、杭挾持部材の杭解放動作
と、杭挾持部材を杭の圧入、引抜位置に復帰させ
るための油圧シリンダの伸縮動作を一サイクルと
してこれを繰返して行うため、杭の圧入、引抜作
業が間歇的であり、杭の圧入、引抜を行つている
時間と同び時間を杭の圧入、引抜の準備時間とし
て費さなければならず、作業能率が悪い。一方、
杭を地中に圧入する際、杭の圧入抵抗には先端断
面抵抗と連結部の抵抗と杭の周辺摩擦抵抗の三つ
があると考えられているが、その中、杭の周辺摩
擦抵抗は特に粘性土質の場合、杭の圧入を停止さ
せた時間に正比例して増加することが知られてい
る。従つて前記の如く従来の装置では間歇的にし
か杭の圧入作業を行うことができないので、圧入
動作の準備時間が長ければ長い程度杭が大きくな
り、杭の圧入作業を円滑に行うことができない等
の欠点があつた。 In recent years, pile press-in and pull-out devices have been provided that utilize static force from hydraulic pressure, but conventional devices of this type require a pile holding member and a hydraulic cylinder that moves the pile holding member up and down. Only one set of pile press-in and pull-out mechanisms is provided. When press-fitting or pulling out multiple piles at the same time, a pile holding member is provided for each pile, but these pile holding members are moved up and down at the same time by a common hydraulic cylinder, so in the end, Similar to the above, only one set of pile press-in and pull-out mechanisms is provided. Therefore, the operation of clamping the pile by the pile clamping member, the expansion and contraction operation of the hydraulic cylinder, the pile release operation of the pile clamping member, and the expansion and contraction operation of the hydraulic cylinder to return the pile clamping member to the pile press-in and pull-out position. Since this process is repeated as one cycle, the pile press-in and pull-out work is intermittent, and the same amount of time as the pile press-in and pull-out must be spent preparing for the pile press-in and pull-out. work efficiency is poor. on the other hand,
When a pile is press-fitted into the ground, it is thought that there are three types of resistance: cross-sectional resistance at the tip, resistance at the joint, and frictional resistance around the pile.Among these, the frictional resistance around the pile is particularly In the case of clayey soil, it is known that the amount increases in direct proportion to the time that pile press-in is stopped. Therefore, as mentioned above, conventional equipment can only perform pile press-in work intermittently, so the longer the preparation time for the press-in operation, the larger the pile becomes, making it impossible to perform the pile press-in work smoothly. There were other drawbacks.
本発明の目的は、杭の圧入、引抜を油圧による
静的な力により無振動、無騒音で行うことがで
き、また杭を連続的に地中に圧入し、若しくは地
中より引抜くことにより、杭の圧入、引抜作業を
能率よく行うことができ、しかも杭の周辺摩擦抵
抗や連結部摩擦抵抗を減少させて油圧による静的
な力を杭の先端断面抵抗に集中させることがて
き、杭の圧入作業を円滑に行うことができるよう
にした杭圧入、引抜方法及びその装置を提供する
にある。 The purpose of the present invention is to enable piles to be press-fitted and pulled out without vibration or noise using static hydraulic force; , it is possible to perform pile press-in and pull-out operations efficiently, and it is also possible to reduce the frictional resistance around the pile and the frictional resistance of the joints, and to concentrate the static force caused by hydraulic pressure on the cross-sectional resistance at the tip of the pile. An object of the present invention is to provide a method for press-fitting and pulling out piles, and an apparatus therefor, which enable the press-fitting work to be carried out smoothly.
上記目的を達成するため、本発明の方法は杭挾
持部を杭の挾持状態と解放状態で油圧による静的
な力により上下方向に往復動させる複数組の杭圧
入、引抜機構を用い、圧入し、若しくは引抜くべ
き同一の杭に対して各組の杭圧入、引抜機構を
夫々独立して作動させ、杭を地中に連続的に圧入
し、若しくは地中より連続的に引抜くことを特徴
とするものであり、この方法を実施する本発明の
装置は、フレームと、このフレームに支持され、
圧入し、若しくは引抜くべき同一の杭に対して
夫々独立して作動する複数組の杭圧入、引抜機構
を備え、各組の杭圧入、引抜機構は杭の挾持部
と、この挾持部を杭の挾持位置と解放位置に作動
させる機構と、杭挾持部を上下動させる油圧シリ
ンダとより構成したことを特徴とするものであ
る。 In order to achieve the above object, the method of the present invention uses a plurality of sets of pile press-in and pull-out mechanisms that reciprocate the pile clamping part in the vertical direction with static force from hydraulic pressure in the pile clamping state and in the release state. , or each set of pile press-in and pull-out mechanisms is operated independently for the same pile to be pulled out, and the piles are continuously pressed into the ground or pulled out from the ground. The apparatus of the present invention for carrying out this method includes a frame, supported by the frame,
It is equipped with multiple sets of pile press-in and pull-out mechanisms that each operate independently for the same pile to be press-fitted or pulled out, and each set of pile press-fit and pull-out mechanisms connects to a holding part of the pile, and connects this holding part to the pile. It is characterized by comprising a mechanism that operates the pile clamping part to a clamping position and a releasing position, and a hydraulic cylinder that moves the pile clamping part up and down.
以下、本発明の実施例を図面に基いて詳細に説
明する。 Embodiments of the present invention will be described in detail below with reference to the drawings.
先ず装置の第１実施例について説明すると、第
１図乃至第３図に示すように基台１の下側に反力
用の杭挾持装置２が設けられている。この杭挾持
装置２は基台１の下部両側に一体に設けられた脚
部３に複数対の油圧シリンダ４が対向して固定さ
れ、各油圧シリンダ４のピストンロツド４ａの先
端に杭挾持部５が固定されている。従つて各油圧
シリンダ４のピストンロツド４ａを伸縮させるこ
とにより対向する杭挾持部５により杭Ｐを挾持
し、若しくは杭Ｐを解放することができる。基台
１の上部前側には可動台６が基台１に対し横移動
可能に支持される。即ち、可動台６の後側の突出
部７が基台１に形成された溝８に摺動可能に嵌合
されている。可動台６の前部下側には油圧シリン
ダ１０のチユーブが固定され、油圧シリンダ１０
の両側のピストンロツド１０ａ，１０ａが基台１
に固定されている。従つて油圧シリンダ１０のチ
ユーブを移動させることにより可動台６を基台１
に対し横移動させることができる。 First, a first embodiment of the device will be described. As shown in FIGS. 1 to 3, a pile holding device 2 for reaction force is provided below a base 1. This pile holding device 2 has a plurality of pairs of hydraulic cylinders 4 fixed to opposite legs 3 integrally provided on both sides of the lower part of a base 1, and a pile holding part 5 at the tip of a piston rod 4a of each hydraulic cylinder 4. Fixed. Therefore, by expanding and contracting the piston rod 4a of each hydraulic cylinder 4, the pile P can be held by the opposing pile holding parts 5, or the pile P can be released. A movable table 6 is supported on the upper front side of the base 1 so as to be movable laterally with respect to the base 1. That is, the protrusion 7 on the rear side of the movable table 6 is slidably fitted into the groove 8 formed in the base 1. A tube of a hydraulic cylinder 10 is fixed to the front lower side of the movable table 6.
The piston rods 10a, 10a on both sides of the base 1
Fixed. Therefore, by moving the tube of the hydraulic cylinder 10, the movable base 6 can be moved to the base 1.
It can be moved laterally.
基台１と可動台６の前側に位置して複数組（図
示例では二組）の杭圧入、引抜機構１１，１２を
支持したフレーム１３が連結される。フレーム１
３は上位の円筒体１４と下位の円筒体１５が連結
環１６により回転可能に連結されている。下位の
円筒体１５の内側には対向して支持台１７が固定
され、各支持台１７には前記の如く二組の杭圧
入、引抜機構１１，１２が支持される。これら二
組の杭圧入、引抜機構１１，１２は同一の杭Ｐに
対して夫々独立して作動し、同一の構造であるの
で、同一符号を付して説明する。特に第４図及び
第５図より明らかなように前記各支持台１７に対
向して縦方向の案内レール１８が設けられ、各案
内レール１８の上下は端板１８ａ，１８ｂにより
閉塞されている。各案内レール１８には補助枠２
０の基部突出部２０ａが端板１８ａ，１８ｂ間で
上下動可能に挿入支持され、各補助枠２０には水
平方向に対向して油圧シリンダ２１のチユーブが
固定されている。各油圧シリンダ２１のピストン
ロツド２１ａの先端には杭挾持部２２が形成され
ている。従つて各組の対向する油圧シリンダ２１
のピストンロツド２１ａを夫々伸縮することによ
り杭挾持部２２により杭Ｐを挾持し、若しくは解
放することができる。支持台１７の庇２３と補助
枠２０との間には垂直方向の油圧シリンダ２４の
基部とピストンロツド２４ａの先端が連結されて
いる。従つて各油圧シリンダ２４のピストンロツ
ド２４ａを伸縮させることにより各組の補助枠２
０及び油圧シリンダ２１、即ち杭挾持部２２を上
下動させることができる。これら杭圧入、引抜機
構１１，１２を支持したフレーム１３はその上位
円筒体１４の中間部が水平方向のピン２５により
可動台６に対し前後方向に起倒可能に連結され、
可動台６と上位円筒体１４の上端部間に油圧シリ
ンダ２６の基部とピストンロツド２６ａが夫々枢
支されている。従つて油圧シリンダ２６のピスト
ンロツド２６ａの伸縮により杭圧入、引抜機構１
１，１２を支持したフレーム１３を基台１と可動
台６に対し前後方向に起倒させることができる。 A frame 13 is connected to the base 1 and the movable base 6 in front thereof, and supports a plurality of sets (two sets in the illustrated example) of pile press-in and pull-out mechanisms 11 and 12. frame 1
3, an upper cylindrical body 14 and a lower cylindrical body 15 are rotatably connected by a connecting ring 16. Support stands 17 are fixed to the inner side of the lower cylindrical body 15 so as to face each other, and each support stand 17 supports two sets of pile press-fitting and extracting mechanisms 11 and 12 as described above. These two sets of pile press-in and pull-out mechanisms 11 and 12 operate independently on the same pile P and have the same structure, so they will be described using the same reference numerals. In particular, as is clear from FIGS. 4 and 5, a vertical guide rail 18 is provided opposite each of the supports 17, and the upper and lower ends of each guide rail 18 are closed off by end plates 18a and 18b. Each guide rail 18 has an auxiliary frame 2
A base protrusion 20a of 0 is inserted and supported between the end plates 18a and 18b so as to be movable up and down, and a tube of a hydraulic cylinder 21 is fixed to each auxiliary frame 20 so as to face each other in the horizontal direction. A pile holding portion 22 is formed at the tip of the piston rod 21a of each hydraulic cylinder 21. Therefore, each set of opposing hydraulic cylinders 21
By expanding and contracting the piston rods 21a, the pile P can be held or released by the pile holding part 22. The base of a vertical hydraulic cylinder 24 and the tip of a piston rod 24a are connected between the eaves 23 of the support stand 17 and the auxiliary frame 20. Therefore, by expanding and contracting the piston rod 24a of each hydraulic cylinder 24, each set of auxiliary frame 2
0 and the hydraulic cylinder 21, that is, the pile holding part 22 can be moved up and down. The frame 13 that supported these pile press-in and pull-out mechanisms 11 and 12 is connected to the movable table 6 at the middle part of its upper cylindrical body 14 by a horizontal pin 25 so as to be able to be raised and lowered in the front and rear directions.
A base of a hydraulic cylinder 26 and a piston rod 26a are pivotally supported between the movable base 6 and the upper end of the upper cylindrical body 14, respectively. Therefore, by the expansion and contraction of the piston rod 26a of the hydraulic cylinder 26, the pile press-in and pull-out mechanism 1
1 and 12 can be raised and lowered in the front and rear directions with respect to the base 1 and the movable table 6.
次に上記第１実施例に基き、杭を圧入する順序
について説明する。先ず第１図乃至第３図に示す
ように既に地中に圧入済の杭Ｐの上に本装置をク
レーンで吊下げ、基台１の反力用杭挾持装置２に
より杭Ｐを挾持する。次に油圧シリンダ２６の伸
縮によりフレーム１３及び杭圧入、引抜機構１
１，１２の鉛直性を保持する。これと共にフレー
ム１３の下位円筒体１４及び杭圧入、引抜機構
１，１２を回転させ、杭Ｐの圧入位置に待期させ
る。このとき各組の油圧シリンダ２４のピストン
ロツド２４ａを縮めると共に油圧シリンダ２１の
ピストンロツド２１ａも縮めて杭挾持部２２を圧
入開始位置で解放しておく。このようにして圧入
準備が完了すると、圧入すべき杭Ｐをクレーンで
取込み、各組の杭挾持部２２の間に挿通させる。
次に第１組の杭圧入、引抜機構１１の油圧シリン
ダ２１のピストンロツド２１ａを伸長させ、杭挾
持部２２により杭Ｐを挾持する。然る後、第１図
及び第２図に示すようにその第１組の油圧シリン
ダ２４のピストンロツド２４ａを伸長することに
より前記の如く対向する杭挾持部２２を下降さ
せ、杭Ｐをそのストローク長だけ地中に圧入す
る。この第１組の杭圧入、引抜機構１１による杭
Ｐの圧入停止と同時に他方の第２組の杭圧入、引
抜機構１２の油圧シリンダ２１のピストンロツド
２１ａを伸長させ、杭挾持部２２により杭Ｐを挾
持する。これと共に前記圧入作業を終えた第１組
の杭圧入、引抜機構１１の油圧シリンダ２１のピ
ストンロツド２１ａを縮めて杭挾持部２２を後退
させ、杭Ｐを解放する。然る後、第４図及び第５
図に示すように第２組の油圧シリンダ２４のピス
トンロツド２４ａを伸長することにより杭挾持部
２２を下降させ、杭Ｐをそのストローク長だけ地
中に圧入する。この間、第１組の油圧シリンダ２
４のピストンロツドを縮め、杭挾持部２２を圧入
開始位置に待期させる。第２組の圧入、引抜機構
１２による杭Ｐの圧入停止と同時に圧入開始位置
に待期させている第１組の圧入、引抜機構１１の
油圧シリンダ２１のピストンロツド２１ａを伸長
して杭挾持部２２により杭Ｐを挾持し、これと共
に第２組の杭圧入、引抜機構１２の油圧シリンダ
２１のピストンロツド２１ａを縮めて杭挾持部２
２を後退させ、杭Ｐを開放する。然る後、前記と
同様に第１組の杭圧入、引抜機構１１により杭Ｐ
を地中に圧入する。この間、第２組の杭圧入、引
抜機構１２は杭Ｐの圧入開始位置に期待させる。
以下、前記動作を繰返して行うことにより第１組
と第２組の杭圧入、引抜機構１１と１２とを交互
に用いて杭Ｐを連続的に地中に圧入することがで
きる。 Next, the order in which the piles are press-fitted will be explained based on the first embodiment. First, as shown in FIGS. 1 to 3, this device is suspended by a crane over a pile P that has already been pressed into the ground, and the pile P is clamped by the reaction force pile clamping device 2 of the base 1. Next, by expanding and contracting the hydraulic cylinder 26, the frame 13 and the pile are press-fitted, and the extraction mechanism 1
Maintain verticality of 1 and 12. At the same time, the lower cylindrical body 14 of the frame 13 and the pile press-fitting/extracting mechanisms 1 and 12 are rotated to wait at the pile P press-fitting position. At this time, the piston rods 24a of each set of hydraulic cylinders 24 are retracted, and the piston rods 21a of the hydraulic cylinders 21 are also retracted to release the pile holding portions 22 at the press-fitting start position. When the preparation for press-fitting is completed in this manner, the piles P to be press-fitted are taken in by a crane and inserted between the pile holding parts 22 of each set.
Next, the piston rod 21a of the hydraulic cylinder 21 of the first pile press-in/extraction mechanism 11 is extended, and the pile P is held by the pile holding part 22. Thereafter, as shown in FIGS. 1 and 2, by extending the piston rod 24a of the first set of hydraulic cylinders 24, the opposing pile holding parts 22 are lowered as described above, and the pile P is moved to its stroke length. Press into the ground only. At the same time as the first set of pile press-fitting and pulling-out mechanism 11 stops press-fitting the pile P, the piston rod 21a of the hydraulic cylinder 21 of the second set of pile press-fitting and pulling-out mechanism 12 is extended, and the pile P is held by the pile holding part 22. to hold. At the same time, the piston rod 21a of the hydraulic cylinder 21 of the first pile press-in/extraction mechanism 11 that has completed the press-fitting operation is retracted, the pile holding part 22 is retreated, and the pile P is released. After that, Figures 4 and 5
As shown in the figure, by extending the piston rod 24a of the second set of hydraulic cylinders 24, the pile holding part 22 is lowered, and the pile P is forced into the ground by the stroke length. During this time, the first set of hydraulic cylinders 2
4 is retracted, and the pile holding part 22 is held at the press-fitting start position. At the same time as the second set of press-fitting and pulling mechanism 12 stops press-fitting the pile P, the piston rod 21a of the hydraulic cylinder 21 of the first set of press-fitting and pulling-out mechanism 11, which is waiting at the press-fitting start position, is extended and the pile holding part 22 is moved. The pile P is held between the piston rods 21a of the hydraulic cylinders 21 of the second set of pile press-in/extraction mechanisms 12, and the pile holding portions 2 are compressed.
2 is moved back and the stake P is released. After that, the pile P is removed by the first set of pile press-in/extraction mechanism 11 in the same manner as described above.
Press into the ground. During this time, the second set of pile press-in and pull-out mechanisms 12 allows the pile P to be at the press-in start position.
Thereafter, by repeating the above operations, the piles P can be continuously press-fitted into the ground by alternately using the first and second sets of pile press-fitting and pulling mechanisms 11 and 12.
杭Ｐの圧入後、反力用杭挾持装置２を杭Ｐより
開放させて本装置全体を前進させ、反力用杭挾持
装置２により再び杭Ｐを挾持させ、油圧シリンダ
１０のチユーブを横移動させて可動台６、フレー
ム１３及び杭圧入、引抜機構１１，１２を基台１
に対し横移動させ、前記動作を繰返して行うこと
により次に圧入すべき杭Ｐを既に圧入した杭Ｐに
連結状態にして地中することができる。 After press-fitting the pile P, the reaction force pile clamping device 2 is released from the pile P to move the entire device forward, the reaction force pile clamping device 2 clamps the pile P again, and the tube of the hydraulic cylinder 10 is moved laterally. Then move the movable base 6, frame 13 and pile press-fitting and extraction mechanisms 11 and 12 to the base 1.
By moving the pile laterally and repeating the above operations, the next pile P to be press-fitted can be connected to the pile P that has already been press-fitted and placed underground.
前記圧入順序では第１組と第２組の圧入、引抜
機構１１と１２の圧入作業を交互に行い、杭Ｐを
連続的に地中に圧入するようにした場合について
説明したが、第１組の圧入、引抜機構１１で杭Ｐ
を圧入している途中で、第２組の圧入、引抜機構
１２でも杭Ｐの圧入を開始させ、第２組の圧入、
引抜機構１２で杭Ｐの圧入している途中で、第１
組の圧入、引抜機構１１を圧入開始位置に復帰さ
せると共に圧入するようにすれば、両圧入、引抜
機構１１，１２を部分的に併用することができ、
圧入力を大きくして圧入作業をより効率良く行う
ことができる。また前記如く杭Ｐの周辺摩擦抵抗
は圧入停止時間に正比例するので、第１組と第２
組の杭圧入、引抜機構１１と１２による圧入作業
に多少の時間的間隔があつても差支えなく、要す
るに全体として杭を連続的に圧入すればよい。 In the above press-fitting order, the case was explained in which the press-fitting of the first and second sets and the press-fitting of the extraction mechanisms 11 and 12 were performed alternately, so that the piles P were continuously press-fitted into the ground. Pile P with the press-in and pull-out mechanism 11
While the pile P is being press-fitted, the second set of press-fitting and pulling mechanism 12 also starts press-fitting the pile P, and the second set of press-fitting,
While the pile P is being press-fitted by the pull-out mechanism 12, the first
By returning the pair of press-fitting/pull-out mechanisms 11 to the press-fitting starting position and press-fitting, both press-fitting/pull-out mechanisms 11 and 12 can be partially used together.
The press-fitting work can be performed more efficiently by increasing the press-fitting force. In addition, as mentioned above, the peripheral frictional resistance of the pile P is directly proportional to the press-fitting stop time, so the first and second sets
There is no problem even if there is some time interval between the press-fitting of a set of piles and the press-fitting operations by the pull-out mechanisms 11 and 12; in short, it is sufficient to press-fit the piles as a whole continuously.
また前記動作を逆に行えば、杭Ｐを連続的に地
中より引抜くことができる。 Moreover, if the above-mentioned operation is performed in reverse, the piles P can be continuously pulled out from the ground.
第６図及び第７図は本発明装置の第２実施例を
示すものである。本実施例にあつては同一の杭Ｐ
に対して夫々独立して作動する各組の杭圧入、引
抜機構１１，１２を角筒上のフレーム１３に支持
させ、このフレーム１３の突出部１３ａを基台１
の溝８に横移動可能に嵌合し、フレーム１３を可
動台６と兼用させたものであり、その他の構成及
び作動順序は前記実施例と同様である。 6 and 7 show a second embodiment of the device of the present invention. In this example, the same pile P
Each set of pile press-in and pull-out mechanisms 11 and 12, which operate independently on the
The frame 13 is also used as the movable base 6, and the other structure and operation order are the same as those of the previous embodiment.
第８図及び第９図は本発明装置の第３実施例を
示すものである。本実施例にあつては同一の杭Ｐ
に対して夫々独立して作動する各組の圧入、引抜
機構１１，１２はフレーム１３の下位円筒体１５
の支持台１８に対し上下一対の油圧シリンダ３０
のピストンロツド３０ａを連結し、上下の油圧シ
リンダ３０の基部間に油圧シリンダ３１の両側の
ピストンロツド３１ａを連結し、各油圧シリンダ
３０のシリンダチユーブに杭挾持部２２を取付け
たものであり、その他の構成及び作動順序は前記
実施例と同様である。 FIGS. 8 and 9 show a third embodiment of the apparatus of the present invention. In this example, the same pile P
Each set of press-fitting and pulling-out mechanisms 11 and 12 operates independently on the lower cylindrical body 15 of the frame 13.
A pair of upper and lower hydraulic cylinders 30
piston rods 30a are connected, piston rods 31a on both sides of the hydraulic cylinder 31 are connected between the bases of the upper and lower hydraulic cylinders 30, and a pile holding part 22 is attached to the cylinder tube of each hydraulic cylinder 30. and the operating order is the same as in the previous embodiment.
尚、前記第１、第２実施例では油圧シリンダ２
４の押圧力により杭Ｐを地中に圧入するようにし
ているが、油圧シリンダ２４を杭挾持部２２の下
側に配置し、油圧シリンダ２４の引きにより杭Ｐ
を地中に圧入するようにしてもよい。またフレー
ム１３を支持する台は基台１に前後方向に移動す
る可動台に設け、基台と可動台に夫々反力用杭挾
持装置２を設け、この反力用杭挾持装置を交互に
作動させて自走させるようにしてもよく、また台
は地面上に載置するようにしたものでもよい。ま
たフレーム１３はクレーン等で支持するようにし
てもよい。また複数枚の杭を溶接により一体化
し、この一体化した杭を複数組の杭圧入、引抜機
構により圧入し、若しくは引抜くようにしてもよ
く、また杭圧入、引抜機構１１，１２を前後方向
に増設することにより二枚以上の複数本の杭Ｐを
同時に地中に圧入し、若しくは地中より引抜くよ
うにしてもよく、要するに圧入し、若しくは引抜
くべき同一の杭に対して複数組の杭圧入、引抜機
構を夫々独立して作動させればよい。また杭挾持
部２２は油圧シリンダ以外の機構により作動させ
るようにしてもよい。本発明は、この他、その基
本的技術思想を逸脱しない範囲で種々設計変更す
ることができる。 In addition, in the first and second embodiments, the hydraulic cylinder 2
The pile P is forced into the ground by the pressing force of 4, but the hydraulic cylinder 24 is arranged below the pile holding part 22, and the pull of the hydraulic cylinder 24 pushes the pile P into the ground.
may be press-fitted into the ground. In addition, the stand supporting the frame 13 is provided on a movable stand that moves in the front and back direction of the base 1, and a pile holding device 2 for reaction force is provided on each of the base and the movable stand, and the pile holding device for reaction force is operated alternately. It may be made to run on its own, or the stand may be placed on the ground. Further, the frame 13 may be supported by a crane or the like. Alternatively, a plurality of piles may be integrated by welding, and the integrated pile may be press-fitted or pulled out by multiple sets of pile press-fitting and pulling-out mechanisms. By adding additional piles, two or more piles P may be pressed into the ground or pulled out from the ground at the same time. It is sufficient to operate the pile press-in and pull-out mechanisms independently. Further, the pile holding portion 22 may be operated by a mechanism other than a hydraulic cylinder. The present invention can be modified in various other ways without departing from its basic technical idea.
以上より明らかなように本発明によれば、杭の
圧入、引抜を油圧による静的な力により行うの
で、振動、騒音を防止することができる。また圧
入し、若しくは引抜くべき同一の杭に対して複数
組の杭圧入、引抜機構を夫々独立して作動させる
ので、杭を連続的に地中に圧入し、若しくは地中
より引抜くことができ、従つて作業能率を向上さ
せることができ、しかも杭の周辺摩擦抵抗や連結
部摩擦抵抗を減少させ、油圧による静的な力を先
端断面抵抗に集中させることができ、杭の圧入作
業を円滑に行うことができる等の利点がある。 As is clear from the above, according to the present invention, since the piles are press-fitted and pulled out using static hydraulic force, vibration and noise can be prevented. In addition, since multiple sets of pile press-in and pull-out mechanisms are operated independently for the same pile to be press-fitted or pulled out, it is possible to continuously press-fit piles into the ground or pull them out from the ground. Therefore, it is possible to improve work efficiency, reduce the frictional resistance around the pile and the frictional resistance of the joint, and concentrate the static force caused by hydraulic pressure on the cross-sectional resistance at the tip, making it possible to reduce the pile press-in work. It has the advantage that it can be carried out smoothly.
第１図乃至第５図は本発明装置の第１実施例を
示し、第１図は平面図、第２図は側面図、第３図
は背面図、第４図は要部の一部破断拡大側面図、
第５図はその−矢視断面図、第６図及び第７
図は本発明装置の第２実施例を示し、第６図は平
面図、第７図は側面図、第８図及び第９図は本発
明装置の第３実施例を示し、第８図は要部の一部
破断平面図、第９図はその−矢視断面図であ
る。
１……基台、２……反力用杭挾持装置、６……
可動台、１１，１２……杭圧入、引抜機構、１３
……フレーム、１８……案内レール、２０……補
助枠、２２……杭挾持部、Ｐ……杭。
1 to 5 show a first embodiment of the device of the present invention, FIG. 1 is a plan view, FIG. 2 is a side view, FIG. 3 is a rear view, and FIG. 4 is a partially broken view of the main part. Enlarged side view,
Figure 5 is a cross-sectional view of the
The figures show a second embodiment of the device of the present invention, FIG. 6 is a plan view, FIG. 7 is a side view, FIGS. 8 and 9 show a third embodiment of the device of the present invention, and FIG. A partially cutaway plan view of the main part, and FIG. 9 is a cross-sectional view taken along the - arrow. 1... Base, 2... Pile clamping device for reaction force, 6...
Movable platform, 11, 12... Pile press-fitting and extraction mechanism, 13
... Frame, 18 ... Guide rail, 20 ... Auxiliary frame, 22 ... Pile holding part, P ... Pile.
Claims (1)
よる静的な力により上下方向に往復動させる複数
組の杭圧入、引抜機構を用い、圧入し、若しくは
引抜くべき同一の杭に対して各組の杭圧入、引抜
機構を夫々独立して作動させ、杭を地中に連続的
に圧入し、若しくは地中より連続的に引抜くこと
を特徴とする杭圧入、引抜方法。 ２ フレームと、このフレームに支持され、圧入
し、若しくは引抜くべき同一の杭に対して夫々独
立して作動する複数組の杭圧入、引抜機構とを備
え、各組の杭圧入、引抜機構は杭の挾持部と、こ
の杭挾持部を杭の挾持位置と解放位置に作動させ
る機構と、杭挾持部を上下動させる油圧シリンダ
とより構成したことを特徴とする杭圧入、引抜装
置。[Scope of Claims] 1. The pile should be press-fitted or pulled out using a plurality of sets of pile press-in/pull-out mechanisms that reciprocate the pile holding part in the vertical direction by the static force of hydraulic pressure in the pile-clamping state and in the released state. Pile press-fitting, characterized in that each set of pile press-fitting and pulling mechanisms is operated independently for the same pile, and the piles are continuously press-fitted into the ground or continuously pulled out from the ground; How to pull out. 2 A frame, and a plurality of sets of pile press-fitting and pulling mechanisms supported by the frame and operating independently for the same pile to be press-fitted or pulled out, each set of pile press-fitting and pulling mechanisms being A pile press-in/extraction device comprising a pile clamping part, a mechanism for operating the pile clamping part to a pile clamping position and a pile release position, and a hydraulic cylinder for moving the pile clamping part up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11616181A JPS5817925A (en) | 1981-07-24 | 1981-07-24 | Method and apparatus for pressing in and drawing pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11616181A JPS5817925A (en) | 1981-07-24 | 1981-07-24 | Method and apparatus for pressing in and drawing pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5817925A JPS5817925A (en) | 1983-02-02 |
| JPS6127525B2 true JPS6127525B2 (en) | 1986-06-26 |
Family
ID=14680280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11616181A Granted JPS5817925A (en) | 1981-07-24 | 1981-07-24 | Method and apparatus for pressing in and drawing pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5817925A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6225704A (en) * | 1985-07-26 | 1987-02-03 | Nippon Telegr & Teleph Corp <Ntt> | Optical fiber cutting mechanism |
-
1981
- 1981-07-24 JP JP11616181A patent/JPS5817925A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5817925A (en) | 1983-02-02 |
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