JP2991569B2 - Double hammer type pile driving device - Google Patents

Double hammer type pile driving device

Info

Publication number
JP2991569B2
JP2991569B2 JP4187092A JP18709292A JP2991569B2 JP 2991569 B2 JP2991569 B2 JP 2991569B2 JP 4187092 A JP4187092 A JP 4187092A JP 18709292 A JP18709292 A JP 18709292A JP 2991569 B2 JP2991569 B2 JP 2991569B2
Authority
JP
Japan
Prior art keywords
hammer
pile
pile driving
driving device
double
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
JP4187092A
Other languages
Japanese (ja)
Other versions
JPH0673733A (en
Inventor
誠二 松下
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP4187092A priority Critical patent/JP2991569B2/en
Publication of JPH0673733A publication Critical patent/JPH0673733A/en
Application granted granted Critical
Publication of JP2991569B2 publication Critical patent/JP2991569B2/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

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、先端部に杭先端支持器
を装着した杭の打ち込みに用いられるダブルハンマー式
杭打ち装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double hammer type pile driving device used for driving a pile having a pile tip support mounted at the tip.

【0002】[0002]

【従来の技術】従来より地盤内への杭の打ち込みに関し
て、騒音の低減及び支持力の向上等の観点から様々な杭
打ち装置やこれを用いた杭打ち工法が提案されている。
2. Description of the Related Art Various types of pile driving devices and pile driving methods using the same have been proposed for driving a pile into the ground from the viewpoints of noise reduction and improvement of supporting force.

【0003】このような種々の杭打ち装置の中でも特に
無公害で騒音の低減効果に優れた、杭の先端に杭先端支
持器を装着しこの杭先端支持器を槌打つことによって杭
を打ち込むことのできる杭打ち装置が開発され、多くの
現場で採用されている。
[0003] Among these various pile driving devices, a pile tip support is mounted on the tip of a pile and hammered into the pile by hammering the pile tip support, which is particularly pollution-free and has an excellent noise reduction effect. Pile driving equipment has been developed and is being used at many sites.

【0004】本願出願人もこのような杭打ち工法に用い
る杭先端支持器を開発し、実開昭61−62940号公
報で提案した。
The applicant of the present application has also developed a pile tip support used in such a pile driving method, and proposed it in Japanese Utility Model Laid-Open No. 61-62940.

【0005】この杭先端支持器は、底板とこの底板に固
着された管体とからなり、管体の内壁に杭の先端付近に
係止する係止突部を形成したもので、杭の軸方向に形成
した挿通孔からモンケンハンマーを落下させて、土中に
ある杭先端支持器の底板を槌打つことによって、騒音の
発生無しに杭打作業を行なうことができる。
[0005] This pile tip support device comprises a bottom plate and a tube fixed to the bottom plate, and has a locking projection formed on the inner wall of the tube near the tip of the pile. By dropping the monken hammer from the through hole formed in the direction and hammering the bottom plate of the pile tip support device in the soil, the pile driving operation can be performed without generating noise.

【0006】また、本願出願人はかかる工法をさらに発
展させたものとして、杭先端のみならず、杭上端部の打
撃あるいは押圧をも同時に可能にした杭打ち装置を、実
開平1−98234号で提案した。
[0006] The present applicant has further developed such a construction method, and has disclosed a pile driving apparatus capable of simultaneously striking or pressing not only the pile tip but also the pile upper end in Japanese Utility Model Laid-Open No. 1-98234. Proposed.

【0007】この杭打ち装置は、いわゆるダブルハンマ
ーと呼ばれ、杭の先端に装着した杭先端支持器を槌打つ
支持器用の第1のハンマーと、杭の上端部を打撃する補
助の第2のハンマーとを備え、支持器用の第1のハンマ
ーを吊り下げるワイヤーロープを補助ハンマーに設けた
滑車を介して装着したものである。このため、補助ハン
マーを上昇させることによって、同時に支持器用ハンマ
ーも上昇し、杭の先端部と上端部とを略同時に打撃する
ことができる。
This pile driving device is a so-called double hammer, which is a first hammer for a hammer that strikes a pile tip support mounted on a tip of a pile, and a second hammer for hitting an upper end of the pile. A wire rope for suspending the first hammer for the supporter is provided via a pulley provided on the auxiliary hammer. Therefore, by raising the auxiliary hammer, the hammer for the supporter is also raised at the same time, and the tip and the upper end of the pile can be hit substantially simultaneously.

【0008】これによって、杭先端支持器の進入に伴っ
て杭も同時に地中に打ち込まれ、杭と杭先端支持器とが
離間することなく、無振動,無公害で、且つ連続した効
率的な杭打ち作業が可能となる。
Accordingly, the pile is driven into the ground at the same time as the pile tip support enters, and the pile and the pile tip support are not separated from each other without vibration, pollution-free, and continuous and efficient. Piling work becomes possible.

【0009】[0009]

【発明が解決しようとする課題】ところが、上記ダブル
ハンマー式の杭打ち装置は、支持器用の第1のハンマー
と補助の第2のハンマーとが常に連動して作動するた
め、特に杭の先端部が支持地盤に近くなると、杭上端部
を打撃する第2のハンマーによるリバウンドが大きくな
り、これが騒音や振動の発生原因となっている。
However, in the above-mentioned double hammer type pile driving device, the first hammer for the supporter and the second hammer for the auxiliary always operate in conjunction with each other. Is closer to the supporting ground, the rebound by the second hammer hitting the upper end of the pile increases, which causes noise and vibration.

【0010】また、ダブルハンマーによって、一回の打
撃による杭の進入量が大きいため、特に地盤の悪い場所
では、一回の打撃によって必要以上に杭が地盤内に進入
してしまうという問題も生じている。
[0010] Further, since the double hammer causes a large amount of penetration of the pile by one impact, there is also a problem that the pile enters the ground more than necessary by one impact, especially in a place where the ground is bad. ing.

【0011】本発明が解決すべき課題は、支持地盤近く
における騒音や振動の発生を防ぎ、かつ軟弱な地盤にも
対応可能なダブルハンマー式の杭打ち装置を得ることに
ある。
An object of the present invention is to provide a double hammer type pile driving device which can prevent noise and vibration near the supporting ground and can cope with soft ground.

【0012】[0012]

【課題を解決するための手段】本発明は上記課題を解決
するために、先端部に杭先端支持器を装着し軸方向の貫
通孔を有する杭の上端部に取付けられるダブルハンマー
式杭打ち装置であって、前記杭先端支持器を槌打つ第1
のハンマーと、前記杭の上端部を打撃する第2のハンマ
ーと、前記第1及び第2のハンマーをそれぞれ上昇落下
させる巻上げ装置とを備え、かつ前記第2のハンマーの
巻上げ装置のみを解除可能に形成したことを特徴とす
る。
SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a double-hammer pile driving device which is mounted on a pile having a through-hole in the axial direction by mounting a pile tip support at the tip. A first hammering the pile tip support.
Hammer, a second hammer that strikes the upper end of the pile, and a hoisting device that respectively raises and lowers the first and second hammers, and can release only the hoisting device of the second hammer. It is characterized by being formed in.

【0013】[0013]

【作用】本発明のダブルハンマー式杭打ち装置は、通常
の杭打ち作業の際には、第1と第2のハンマーの両ハン
マーを使用して連続した効率的な杭打ち作業が可能とな
り、また、支持地盤近くや軟弱地盤においては、第1の
ハンマーのみを作動させて杭頭を打撃する第2のハンマ
ーを休止させることによって、騒音や振動の発生を有効
に防ぐことができる。
According to the double hammer type pile driving device of the present invention, continuous and efficient pile driving can be performed by using both the first and second hammers at the time of normal pile driving. In addition, in the vicinity of the supporting ground or in the soft ground, generation of noise and vibration can be effectively prevented by operating only the first hammer to suspend the second hammer that strikes the pile head.

【0014】[0014]

【実施例】以下本発明の特徴を図面に示す実施例に基づ
いて具体的に説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The features of the present invention will be specifically described below based on embodiments shown in the drawings.

【0015】図1は本実施例のダブルハンマー式杭打ち
装置の使用状態を一部切欠して示す正面図、図2は同全
体斜視図、図3は杭打ち装置のみの斜視図である。
FIG. 1 is a partially cutaway front view showing the use state of the double hammer type pile driving device of the present embodiment, FIG. 2 is an overall perspective view of the same, and FIG. 3 is a perspective view of only the pile driving device.

【0016】図中30は図示しない建設機械のブームに
吊下されたリードタワー、31は軸方向の貫通孔31a
を有するコンクリート杭、32はコンクリート杭31の
先端部に装着された杭先端支持器で、コンクリート杭3
1の上端部には杭打ち時における杭頭の損傷を防ぐため
のキャップ33が装着され、さらにその上部に本実施例
のダブルハンマー式杭打ち装置1が配置されている。
In the drawing, reference numeral 30 denotes a lead tower suspended on a boom of a construction machine (not shown), and 31 denotes an axial through hole 31a.
A pile support 32 mounted on the tip of the concrete pile 31;
A cap 33 for preventing a pile head from being damaged at the time of pile driving is mounted on an upper end of the pile 1, and the double hammer type pile driving device 1 of the present embodiment is further disposed thereon.

【0017】杭打ち装置1は、中空円筒状の装置本体2
と、装置本体2の側部に固着されリードタワー30に、
上下に摺動可能に取付けられたガイド部材3を上下2段
に備えている。装置本体2内部には、軸方向に貫通孔2
aが形成され、この貫通孔2a内に、コンクリート杭3
1の上端部を打撃する第2のハンマー6が設けられてい
る。4はコンクリート杭31の貫通孔31a内に挿入さ
れ、杭先端支持器32を槌打つ第1のハンマーである。
The pile driving device 1 includes a hollow cylindrical device main body 2.
And the lead tower 30 fixed to the side of the apparatus main body 2,
A guide member 3 slidably mounted up and down is provided in two upper and lower stages. A through hole 2 is provided in the device body 2 in the axial direction.
a is formed, and a concrete pile 3 is formed in the through hole 2a.
A second hammer 6 for hitting the upper end of the first hammer 1 is provided. Reference numeral 4 denotes a first hammer inserted into the through hole 31 a of the concrete pile 31 and hammering the pile tip support 32.

【0018】この第1のハンマー4は上端部にワイヤー
ロープ5が取付けられ、キャップ33の貫通孔33a、
第2のハンマー6の透孔6aを経由して、装置本体2の
上端部に設けられたウインチ7に巻回されている。一方
第2のハンマー6も同様にワイヤーロープ8が連設さ
れ、これらの両ワイヤーロープ5,8は、装置本体2内
部上端に並列状に設けた滑車9に掛け回され、本体2の
外部側面に形成したガイド装置10に上下方向に移動可
能に支持された動滑車11に掛け回されている。さら
に、第1のハンマー4を吊下するワイヤーロープ5は上
記したようにウインチ7に接続され、また第2のハンマ
ー6を吊下するワイヤーロープ8は、本体2の上部側面
に上下2段に設けたフック12に取付けられている。ワ
イヤーロープ8の先端には、図4に示す、ボルト13a
及びナット13bを有する連結具13が取付けられてお
り、使用状況に応じてフック12から適宜取り外すこと
ができる。
The first hammer 4 has a wire rope 5 attached to an upper end thereof, and a through hole 33 a of a cap 33.
It is wound around a winch 7 provided at the upper end of the apparatus main body 2 via a through hole 6 a of the second hammer 6. On the other hand, a wire rope 8 is similarly connected to the second hammer 6, and these two wire ropes 5, 8 are wound around pulleys 9 provided in parallel at the upper end inside the device main body 2, The guide device 10 is formed around a movable pulley 11 supported movably in the vertical direction. Further, the wire rope 5 for suspending the first hammer 4 is connected to the winch 7 as described above, and the wire rope 8 for suspending the second hammer 6 is provided on the upper side surface of the main body 2 in two vertical stages. It is attached to the hook 12 provided. At the tip of the wire rope 8, a bolt 13a shown in FIG.
And a connecting member 13 having a nut 13b, which can be appropriately removed from the hook 12 according to the use condition.

【0019】ガイド装置10に支持された動滑車11
は、図5に示すように、並列状に配置された2連の滑車
11a,11bと、取付け軸11cから略直角方向に突
設した連結杆11dを備え、連結杆11dの先端部に
は、油圧シリンダー14が接続されている。したがっ
て、油圧シリンダー14を操作することによって、動滑
車11が上下動し、これに伴って第1のハンマー4及び
第2のハンマー6を上昇させることが出来る。
A moving pulley 11 supported by a guide device 10
As shown in FIG. 5, the vehicle includes two pulleys 11a and 11b arranged in parallel, and a connecting rod 11d protruding in a direction substantially perpendicular to the mounting shaft 11c. A hydraulic cylinder 14 is connected. Accordingly, by operating the hydraulic cylinder 14, the moving pulley 11 moves up and down, and accordingly, the first hammer 4 and the second hammer 6 can be raised.

【0020】図2に示す15は絞り込み用のワイヤーロ
ープで、一端をリードタワー30に取付けられ、ガイド
部材3及びリードタワー30に設けられた滑車16を介
して上方に設けた動滑車17に連設されている。この動
滑車17を上方に移動させることによって、杭打ち装置
1に下向きの押圧力を付加することができる。
In FIG. 2, reference numeral 15 denotes a wire rope for narrowing down. One end of the wire rope is attached to the lead tower 30 and connected to the moving pulley 17 provided above via the guide member 3 and the pulley 16 provided on the lead tower 30. Has been established. By moving the moving pulley 17 upward, a downward pressing force can be applied to the pile driving device 1.

【0021】上記構成において、通常は図1の状態から
油圧シリンダ14を操作し、動滑車11を引下げること
によって、第1のハンマー4及び第2のハンマー6が同
じ高さだけ上昇する。この状態で油圧シリンダー14の
油圧を一挙に解除することにより、重力によって第1の
ハンマー4が杭先端支持器32を、また第2のハンマー
6がコンクリート杭31の上端部を同時に打撃すること
となる。これによって、コンクリート杭31が杭先端支
持器32の沈下量に追従して打ち込まれ、連続した一連
の杭打作業が可能となる。
In the above configuration, the first hammer 4 and the second hammer 6 are normally raised by the same height by operating the hydraulic cylinder 14 from the state shown in FIG. 1 and pulling down the moving pulley 11. By releasing the hydraulic pressure of the hydraulic cylinder 14 at a time in this state, the first hammer 4 strikes the pile tip support 32 and the second hammer 6 strikes the upper end of the concrete pile 31 simultaneously by gravity. Become. As a result, the concrete pile 31 is driven in accordance with the settlement amount of the pile tip support device 32, and a continuous series of pile driving work becomes possible.

【0022】なお、杭打ち作業を開始する際、コンクリ
ート杭31の上端部から先端の杭先端支持器32までの
距離はそれぞれ異なるが、第1のハンマー4を吊下する
ワイヤーロープ5をウインチ7の巻取量を調整すること
によって、容易に図1に示す状態にすることができ、第
1のハンマー4と第2のハンマー6の同時打撃が可能に
なる。
When the pile driving operation is started, the distance between the upper end of the concrete pile 31 and the tip pile tip supporter 32 differs, but the wire rope 5 for suspending the first hammer 4 is connected to the winch 7. By adjusting the winding amount, the state shown in FIG. 1 can be easily achieved, and the first hammer 4 and the second hammer 6 can be hit simultaneously.

【0023】また、所定量を打ち込み支持地盤に近づい
た場合、一回の打撃による沈下量が少なくなり、上記の
要領で作業を続けると、コンクリート杭31の上端部を
打撃する第2のハンマー6によって、騒音や振動の問題
が生じる。その場合、第2のハンマー6を吊下するワイ
ヤーロープ8をフック12から外す。これによって、動
滑車11を油圧シリンダー14で操作しても第2のハン
マー6が上昇することがなく、第1のハンマー4だけで
の打撃が可能となる。また、フック12から外された連
結具13を動滑車11を巻回した後にワイヤーロープ8
自体に取付ければ、油圧シリンダー14の操作による第
2のハンマー6の上昇量が、第1のシリンダー4の上昇
量の半分になり、騒音が比較的少なく、かつ杭頭の振動
の少ない打撃が可能となる。さらに下段のフック12に
ワイヤーロープ8を付け替えることによって、ワイヤー
ロープ8にたるみが生じ、第2のハンマー6の上昇量を
調整することが可能となる。
When a predetermined amount of the hammer approaches the supporting ground, the amount of settlement by one impact is reduced, and when the operation is continued in the above-described manner, the second hammer 6 which strikes the upper end of the concrete pile 31 is used. This causes noise and vibration problems. In that case, the wire rope 8 that suspends the second hammer 6 is removed from the hook 12. Thus, even if the moving pulley 11 is operated by the hydraulic cylinder 14, the second hammer 6 does not move upward, and it is possible to hit with only the first hammer 4. Further, after the moving pulley 11 is wound around the connecting member 13 removed from the hook 12, the wire rope 8
If it is attached to itself, the amount of rise of the second hammer 6 by the operation of the hydraulic cylinder 14 becomes half of the amount of rise of the first cylinder 4, and the impact with relatively low noise and low vibration of the pile head is reduced. It becomes possible. Further, by replacing the wire rope 8 with the lower hook 12, the wire rope 8 becomes slack, and the amount of rise of the second hammer 6 can be adjusted.

【0024】以上に述べたように、本実施例の杭打ち装
置1においては、第1のハンマー4と第2のハンマー6
を同じ高さから、また第1のハンマー4だけ、さらには
第2のハンマー6を第1のハンマー4の半分の高さから
の打撃等が可能となり、地盤の状況に応じて効率的に、
しかも、騒音の発生や振動の虞のない優れた杭打ち作業
が可能となる。
As described above, in the pile driving device 1 of this embodiment, the first hammer 4 and the second hammer 6
From the same height, the first hammer 4 alone, and the second hammer 6 from half the height of the first hammer 4 can be hit, etc., and efficiently according to the condition of the ground,
In addition, an excellent pile driving operation without generating noise or vibration can be performed.

【0025】[0025]

【発明の効果】以上に説明したように本発明によって、
地盤の状況に応じて第1のハンマーと第2のハンマーの
打撃状況を選定することができ、効率的なしかも騒音や
振動の発生が少ない優れた杭打ち作業が可能となる。
As described above, according to the present invention,
The hitting condition of the first hammer and the second hammer can be selected according to the condition of the ground, and an excellent pile driving operation with less noise and vibration can be performed efficiently.

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

【図1】本実施例のダブルハンマー式杭打ち装置の使用
状態を一部切欠して示す正面図である。
FIG. 1 is a partially cutaway front view showing a use state of a double hammer type pile driving device of the present embodiment.

【図2】本実施例のダブルハンマー式杭打ち装置の使用
状態を示す全体す斜視図である。
FIG. 2 is an overall perspective view showing a use state of the double hammer type pile driving device of the present embodiment.

【図3】図1に示す杭打ち装置斜視図である。FIG. 3 is a perspective view of the pile driving device shown in FIG.

【図4】ワイヤロープとフックの連結状態を示す斜視図
である。
FIG. 4 is a perspective view showing a connection state of a wire rope and a hook.

【図5】動滑車と油圧シリンダーの正面図である。FIG. 5 is a front view of a moving pulley and a hydraulic cylinder.

【符号の説明】[Explanation of symbols]

1 杭打ち装置、2 装置本体、2a 貫通孔、3 ガ
イド部材、4 第1のハンマー、5 ワイヤーロープ、
6 第2のハンマー、6a 透孔、7 ウインチ、8
ワイヤーロープ、9 滑車、10 ガイド装置、11
動滑車、11a,11b 滑車、11c 取付け軸、1
1d 連結杆、12 フック、13 連結具、13a
ボルト、13b ナット、14 油圧シリンダー、15
絞り込み用のワイヤーロープ、30 リードタワー、
31 コンクリート杭、32 杭先端支持器、33 キ
ャップ
1 pile driving device, 2 device main body, 2a through hole, 3 guide member, 4 first hammer, 5 wire rope,
6 second hammer, 6a through hole, 7 winch, 8
Wire rope, 9 pulley, 10 guide device, 11
Moving pulley, 11a, 11b pulley, 11c mounting shaft, 1
1d connecting rod, 12 hooks, 13 connecting tool, 13a
Bolt, 13b nut, 14 hydraulic cylinder, 15
Wire rope for narrowing down, 30 lead tower,
31 concrete pile, 32 pile tip support, 33 cap

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 先端部に杭先端支持器を装着し軸方向の
貫通孔を有する杭の上端部に取付けられるダブルハンマ
ー式杭打ち装置であって、前記杭先端支持器を槌打つ第
1のハンマーと、前記杭の上端部を打撃する第2のハン
マーと、前記第1及び第2のハンマーをそれぞれ上昇落
下させる巻上げ装置とを備え、かつ前記第2のハンマー
の巻上げ装置のみを解除可能に形成したことを特徴とす
るダブルハンマー式杭打ち装置。
1. A double-hammer type pile driving device mounted on a pile having an axial through-hole and having a pile tip support mounted on a tip thereof, wherein the first hammer strikes the pile tip support. A hammer, a second hammer that strikes the upper end of the pile, and a hoisting device that raises and drops the first and second hammers, respectively, and that only the hoisting device of the second hammer can be released. A double hammer type pile driving device characterized by being formed.
JP4187092A 1992-07-14 1992-07-14 Double hammer type pile driving device Expired - Lifetime JP2991569B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4187092A JP2991569B2 (en) 1992-07-14 1992-07-14 Double hammer type pile driving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4187092A JP2991569B2 (en) 1992-07-14 1992-07-14 Double hammer type pile driving device

Publications (2)

Publication Number Publication Date
JPH0673733A JPH0673733A (en) 1994-03-15
JP2991569B2 true JP2991569B2 (en) 1999-12-20

Family

ID=16199970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4187092A Expired - Lifetime JP2991569B2 (en) 1992-07-14 1992-07-14 Double hammer type pile driving device

Country Status (1)

Country Link
JP (1) JP2991569B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080378A (en) * 2010-11-26 2011-06-01 黄木材 Internal striking type vibrating hammering double-purpose pile driver

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6222770B2 (en) * 2013-07-23 2017-11-01 株式会社ユウセイ Driving jig and driving tool
KR102420116B1 (en) * 2021-01-08 2022-07-14 윤춘호 Cap-integrated Drop Hammer Device with Safety and its Operation Methods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080378A (en) * 2010-11-26 2011-06-01 黄木材 Internal striking type vibrating hammering double-purpose pile driver

Also Published As

Publication number Publication date
JPH0673733A (en) 1994-03-15

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