JP5814082B2 - Drilling rig - Google Patents

Drilling rig Download PDF

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JP5814082B2
JP5814082B2 JP2011245322A JP2011245322A JP5814082B2 JP 5814082 B2 JP5814082 B2 JP 5814082B2 JP 2011245322 A JP2011245322 A JP 2011245322A JP 2011245322 A JP2011245322 A JP 2011245322A JP 5814082 B2 JP5814082 B2 JP 5814082B2
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excavator
slide
excavation
leader
attached
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JP2013100691A (en
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孝芳 伊藤
孝芳 伊藤
敦雄 土屋
敦雄 土屋
喜裕 奥山
喜裕 奥山
康一 捧
康一 捧
邦紀 菊池
邦紀 菊池
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Sanwa Kizai Co Ltd
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Sanwa Kizai Co Ltd
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Description

本発明は、地上走行車に支持させて掘削作業を行う掘削装置および掘削方法に係るものである。   The present invention relates to an excavation apparatus and excavation method for excavation work supported by a ground traveling vehicle.

従来、地中連続壁造成用として、地上走行車に突設されたブームに、掘削機(チェン式カッター)を垂直方向に昇降駆動可能に支持して掘削する構成は、公知である(特許文献1)。
また、従来、地上走行車に設けたクレーンのブームに掘削機を吊設し、クレーンのブーム全体を地上走行車に対して前後にスライド自在に取付け、クレーンのブームごと掘削機を前後にスライドさせる構成は、公知である(特許文献2)。
この特許文献2の公知例では、クローラ上にベーステーブルを設け、このベーステーブル上に戻り掘削用テーブルを、前後移動自在に取付け、戻り掘削用テーブルにクレーンのブームを取付け、クレーンのブームに掘削機を支持するマストを設けた構成である。
2. Description of the Related Art Conventionally, a construction for excavating an excavator (chain-type cutter) supported by a boom projecting from a ground traveling vehicle so as to be vertically driven so as to be driven up and down can be used for the construction of an underground continuous wall (Patent Document). 1).
Conventionally, an excavator is suspended from a boom of a crane provided on a ground traveling vehicle, the entire boom of the crane is slidably attached to the ground traveling vehicle forward and backward, and the excavator is slid forward and backward with the boom of the crane. The configuration is known (Patent Document 2).
In the known example of Patent Document 2, a base table is provided on a crawler, a return excavation table is mounted on the base table so as to be movable back and forth, a crane boom is attached to the return excavation table, and excavation is performed on the crane boom. It is the structure which provided the mast which supports a machine.

特開平9−88116JP-A-9-88116 特開2010−185213号公報JP 2010-185213 A

公知例の前者のものでは、先に掘削した掘削溝に接して掘削溝を施工する場合、土砂抵抗が異なるので、掘削機が先に掘削した掘削溝側に寄ってしまうという課題がある。
また、土留め材施工する場合、土留め材の厚さ方向の掘削断面の変更はビットの数を変更することで対応可能であるが、土留め材の幅方向に対する掘削断面の変更はできず、二度の掘削が必要となるという課題がある。
また、連続壁を造成する際には、ポストを引き抜くことが必要となり、作業工程が増加し、作業時間が長くなるという課題がある。
前記公知例のうち後者のものは、戻り掘削用テーブルおよびマストと共に、掘削機を移動させる構成のため、構造が複雑であり、掘削機の移動が大変になって掘削溝の微妙な修正ができないという課題がある。
本願は、地上走行車およびクレーンをスライドさせなくても、掘削機のスライドを可能とし、作業形態を広げ、作業能率および作業精度を向上させたものである。
In the former example of the known example, when the excavation groove is constructed in contact with the excavation groove excavated first, there is a problem that the excavator approaches the excavation groove side excavated first because the earth and sand resistance is different.
In addition, when the earth retaining material is installed, the excavation cross section in the thickness direction of the earth retaining material can be changed by changing the number of bits, but the excavation cross section in the width direction of the earth retaining material cannot be changed. There is a problem that two excavations are required.
Moreover, when creating a continuous wall, it is necessary to pull out the post, which increases the number of work steps and increases the work time.
Among the known examples, the latter is a structure that moves the excavator together with the return excavation table and mast, so the structure is complicated, and the excavator becomes difficult to move, and the excavation groove cannot be delicately corrected. There is a problem.
In the present application, the excavator can be slid without sliding the ground traveling vehicle and the crane, the work form is expanded, and the work efficiency and work accuracy are improved.

請求項1の発明は、地上走行車1に設けたクレーン6に、縦状のポスト7の上部の駆動スプロケット10と前記ポスト7の下部の従動スプロケット12との間に複数の掘削ビット15を所定間隔おいて設けた無端チェン14を掛け回して構成した掘削機5を、ワイヤー21により昇降自在に吊設し、掘削機5は前記地上走行車1の走行方向に対して交差する横方向に掘削溝を掘削する構成とし、前記クレーン6には、前記掘削機5を支持するリーダー22の上部を垂下させ、前記地上走行車1のテーブル3に機体側横支持体26の基部を取付け、該機体側横支持体26の先端にフランジ部34を固定し、該フランジ部34にはスライド機構25のスライド部材30の内面のスライド溝33を係合させ、前記スライド部材30をスライドさせるスライド用横行機構35の一端をスライド部材30に取付け、スライド用横行機構35の他端を前記機体側横支持体26側に取付け、前記スライド部材30には、前記リーダー22の下部を支持するキャッチフォーク部24の基部を固定し、前記リーダー22の下部には第二キャッチフォーク部40の基部を固定状態に設け、第二キャッチフォーク部40の先端には掘削機5のポスト7を上下摺動自在に取付け、もって、掘削機5を引き抜くことなく、掘削作業中に掘削機5全体を前記スライド機構25によりリーダー22ごと横スライドさせて前記掘削溝の横方向に連続掘削可能に構成した掘削装置としたものである。 According to the first aspect of the present invention , a plurality of excavation bits 15 are provided between a driving sprocket 10 above the vertical post 7 and a driven sprocket 12 below the post 7 on the crane 6 provided on the ground traveling vehicle 1. An excavator 5 constructed by wrapping endless chains 14 provided at intervals is suspended by a wire 21 so that the excavator 5 is excavated in a lateral direction intersecting the traveling direction of the ground vehicle 1. The crane 6 is configured to excavate, the crane 6 is suspended at the top of the leader 22 that supports the excavator 5, and the base of the aircraft side lateral support 26 is attached to the table 3 of the ground vehicle 1. A flange portion 34 is fixed to the distal end of the side lateral support body 26, and the slide groove 33 on the inner surface of the slide member 30 of the slide mechanism 25 is engaged with the flange portion 34 to slide the slide member 30. One end of the riding traverse mechanism 35 is attached to the slide member 30, and the other end of the slide traverse mechanism 35 is attached to the airframe side lateral support body 26, and the slide member 30 has a catch for supporting the lower portion of the leader 22. The base part of the fork part 24 is fixed, the base part of the second catch fork part 40 is fixedly provided below the leader 22, and the post 7 of the excavator 5 is slid up and down at the tip of the second catch fork part 40. Excavation apparatus constructed so as to be capable of continuous excavation in the lateral direction of the excavation groove by freely sliding the entire excavator 5 along with the leader 22 by the slide mechanism 25 during excavation work without pulling out the excavator 5 freely. It is what.

請求項1の発明では、クレーン6に対してリーダー22ごと掘削機5をスライドさせられ、掘削機5のスライド構成を簡素に実現でき、掘削機5のスライドにより掘削作業を容易にすることができ、また、クレーン6に対して掘削機5をスライドさせることにより掘削機5の引き抜きの工程を省略できて掘削作業全般の作業時間の短縮化を図ることができる。   In the invention of claim 1, the excavator 5 can be slid together with the leader 22 with respect to the crane 6, the slide configuration of the excavator 5 can be simply realized, and excavation work can be facilitated by the slide of the excavator 5. Further, by sliding the excavator 5 with respect to the crane 6, the step of pulling out the excavator 5 can be omitted, and the working time of the entire excavation work can be shortened.

掘削装置の側面図。The side view of a drilling rig. 掘削機の正面図。The front view of an excavator. スライド機構の側面図。The side view of a slide mechanism. 同平面図。FIG. スライド機構のスライド状態平面図。The slide state top view of a slide mechanism. 掘削作業の模式図。Schematic diagram of excavation work. 掘削機とリーダーの取付部分の概略図。Schematic of the excavator and leader attachment. 掘削機とリーダーの取付部分の概略図。Schematic of the excavator and leader attachment.

本発明の一実施例を図により説明する。1は地上走行車であり、走行装置(クローラ)2の上方にテーブル3を設ける。テーブル3の構成は任意であり、テーブル3には、旋回あるいは前後移動する移動テーブルを設けてもよい。
テーブル3には掘削機(チェン式カッター)5を吊設するクレーン6を設ける。前記掘削機5の構成は任意であるが、縦状のポスト7の上部に駆動スプロケット10を駆動軸11により軸装し、ポスト7の下部に従動スプロケット12を従動軸13により軸装する。駆動スプロケット10と従動スプロケット12との間に無端チェン14を掛け回す。無端チェン14には掘削ビット15を所定間隔おいて複数並設する。
An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a ground traveling vehicle, and a table 3 is provided above a traveling device (crawler) 2. The configuration of the table 3 is arbitrary, and the table 3 may be provided with a moving table that turns or moves back and forth.
A crane 6 for suspending an excavator (chain cutter) 5 is provided on the table 3. The construction of the excavator 5 is arbitrary, but the driving sprocket 10 is mounted on the upper portion of the vertical post 7 by the driving shaft 11, and the driven sprocket 12 is mounted on the lower portion of the post 7 by the driven shaft 13. An endless chain 14 is hung between the driving sprocket 10 and the driven sprocket 12. A plurality of excavation bits 15 are arranged in the endless chain 14 at a predetermined interval.

この掘削機5は、クレーン6の先端の吊設部20から垂下するワイヤー21により吊設され、吊設部20から垂下するリーダー22に支持された状態で昇降する。前記ワイヤー21は前記吊設部20内に設けたワイヤー繰出巻き取り装置(図示省略)により出し入れされ、掘削機5を昇降させる。
前記リーダー22には移動側支持部材(キャッチフォーク部)24を取付け、キャッチフォーク部24にはスライド機構25を介在させて機体側横支持体26取付け、機体側横支持体26の基部は前記地上走行車1のテーブル3側に固定する。
即ち、キャッチフォーク部24と機体側横支持体26との間にスライド機構25を設ける。
The excavator 5 is suspended by a wire 21 that hangs down from a suspension part 20 at the tip of the crane 6, and moves up and down while being supported by a leader 22 that hangs down from the suspension part 20. The wire 21 is taken in and out by a wire feeding and winding device (not shown) provided in the suspending portion 20 and moves the excavator 5 up and down.
A moving side support member (catch fork part) 24 is attached to the leader 22, and a body side lateral support body 26 is attached to the catch fork part 24 via a slide mechanism 25. The base part of the body side lateral support body 26 is the ground surface. It fixes to the table 3 side of the traveling vehicle 1.
That is, the slide mechanism 25 is provided between the catch fork portion 24 and the airframe side lateral support body 26.

スライド機構25はスライド部材30の縦板31を前記キャッチフォーク部24の基部に固定状態に取付ける。縦板31には上下一対の横板32を連設し、各横板32の内面にスライド溝33を夫々設け、上下のスライド溝33に機体側横支持体26のフランジ部34をスライド自在に嵌合させる。前記スライド部材30側にはシリンダ等により構成するスライド用横行機構35の一端を取付け、スライド用横行機構35の他端を前記機体側横支持体26側に取付ける。   The slide mechanism 25 attaches the vertical plate 31 of the slide member 30 to the base of the catch fork portion 24 in a fixed state. A pair of upper and lower horizontal plates 32 are connected to the vertical plate 31, slide grooves 33 are provided on the inner surfaces of the respective horizontal plates 32, and the flange portion 34 of the machine-body-side horizontal support 26 is slidable in the upper and lower slide grooves 33. Fit. One end of a sliding traverse mechanism 35 constituted by a cylinder or the like is attached to the slide member 30 side, and the other end of the slide traverse mechanism 35 is attached to the machine body side lateral support body 26 side.

なお、スライド機構25はスライド部材30を機体側横支持体26側に取付けて、キャッチフォーク部24側にフランジ部34を設けてもよい。
スライド機構25は、スライド用横行機構35を作動させると、スライド部材30をスライドさせて、スライド部材30はキャッチフォーク部24を介してリーダー22ごと掘削機5をスライドさせ、その結果、掘削機5全体をスライドさせる。
また、掘削機5とリーダー22との支持構成は任意であるが、実施例では、リーダー22の下部に固定状態に別途第二キャッチフォーク部40を設け、該第二キャッチフォーク部40に横ガイド杆41の基部を固定し、横ガイド杆41の先端のガイド部42に掘削機5のポスト7に形成したガイド溝43を摺動自在に係合させる(図7)。
The slide mechanism 25 may be provided with the slide member 30 on the airframe side lateral support body 26 side and the flange portion 34 on the catch fork portion 24 side.
When the slide traversing mechanism 35 is operated, the slide mechanism 25 slides the slide member 30, and the slide member 30 slides the excavator 5 together with the leader 22 via the catch fork portion 24. As a result, the excavator 5 Slide the whole thing.
Further, the support structure of the excavator 5 and the leader 22 is arbitrary, but in the embodiment, a second catch fork portion 40 is separately provided in a fixed state below the leader 22, and a lateral guide is provided on the second catch fork portion 40. The base portion of the rod 41 is fixed, and the guide groove 43 formed in the post 7 of the excavator 5 is slidably engaged with the guide portion 42 at the tip of the lateral guide rod 41 (FIG. 7).

また、第二キャッチフォーク部40の上方に別途第三キャッチフォーク部44を設け、第三キャッチフォーク部44はリーダー22に上下摺動自在に取付け、第三キャッチフォーク部44には掘削機5のポスト7に固定した固定の横支持体45を固定する(図8)。   In addition, a third catch fork portion 44 is separately provided above the second catch fork portion 40, and the third catch fork portion 44 is attached to the leader 22 so as to be vertically slidable. A fixed lateral support 45 fixed to the post 7 is fixed (FIG. 8).

(実施例の作用)
地上走行車1を走行させて掘削現場に至り、掘削現場の掘削箇所に、地上走行車1のクレーン6に取付けたリーダー22の下部を設置する。
(Operation of Example)
The ground traveling vehicle 1 is caused to travel to the excavation site, and the lower portion of the leader 22 attached to the crane 6 of the ground traveling vehicle 1 is installed at the excavation site of the excavation site.

次に、クレーン6のワイヤー21の下端に掘削機5の上部を取付け、ワイヤー21を繰り出して掘削機5をリーダー22に対して下降させ、掘削作業を行う。
この場合、先に掘削した先行掘削溝M1に接して後続掘削溝M2を施工する場合、土砂抵抗が異なるので、掘削機5が先に掘削した先行掘削溝M1側に寄ってしまうことがあるが、本願では、掘削機5側となる移動側支持部材(キャッチフォーク部)24とテーブル3側となる機体側横支持体26の間にスライド機構25を設けているので、スライド用横行機構35によりスライド機構25のスライド部材30を後続掘削溝M2側にスライドさせると、掘削機5による後続掘削溝M2を、クレーン6を移動させずに、修正でき、設計通りの後続掘削溝M2を掘削する。
即ち、リーダー22の下部を地面より離すだけで、離掘削機5を支持しているリーダー22ごと、テーブル3に対して掘削機5をスライド移動させられる。
したがって、テーブル3に対してリーダー22および掘削機5だけをスライド移動させられるので、掘削溝の修正作業を容易にする。
Next, the upper part of the excavator 5 is attached to the lower end of the wire 21 of the crane 6, the wire 21 is drawn out, the excavator 5 is lowered with respect to the leader 22, and excavation work is performed.
In this case, when the subsequent excavation groove M2 is constructed in contact with the previous excavation groove M1, the earth and sand resistance is different, and therefore the excavator 5 may approach the preceding excavation groove M1 side excavated earlier. In the present application, since the slide mechanism 25 is provided between the moving-side support member (catch fork portion) 24 on the excavator 5 side and the machine-side lateral support body 26 on the table 3 side, When the slide member 30 of the slide mechanism 25 is slid to the subsequent excavation groove M2 side, the subsequent excavation groove M2 by the excavator 5 can be corrected without moving the crane 6, and the subsequent excavation groove M2 as designed is excavated.
That is, the excavator 5 can be slid with respect to the table 3 along with the leader 22 supporting the excavator 5 by simply separating the lower part of the leader 22 from the ground.
Therefore, since only the leader 22 and the excavator 5 can be slid relative to the table 3, the excavation groove correction work is facilitated.

また、前記掘削機5の左右幅(掘削幅)を土留め部材の最小寸法にあった施工可能に製作し、土留め部材の幅が掘削機5の左右幅より広い場合であっても、先行掘削溝M1に対して掘削機5を左右方向にスライドさせれば掘削でき、一々掘削機5を引き抜かなくてよく、作業工程を短縮する。
即ち、リーダー22ごと掘削機5をスライドさせることができるので、掘削作業中の掘削機5のスライドが可能となって、掘削機5より大きい掘削溝を掘削でき、全体の掘削工程を短縮させられる。
Further, the excavator 5 is manufactured so that the right and left width (excavation width) matches the minimum dimension of the retaining member, and even if the retaining member is wider than the left and right width of the excavator 5 , If the excavator 5 is slid in the left-right direction with respect to the row excavation groove M1, the excavator 5 can be excavated, and the excavator 5 need not be pulled out one by one, thereby shortening the work process.
That is, since the excavator 5 can be slid together with the leader 22, the excavator 5 can be slid during excavation work, excavation grooves larger than the excavator 5 can be excavated, and the entire excavation process can be shortened. .

同様に、連続壁や地盤改良を行う際に、掘削機5を持ち上げることなく施工可能となって、作業工程を短縮する。
具体的には、スライド機構25は、掘削機5を支持するリーダー22に取付ける移動側支持部材(キャッチフォーク部)24に、スライド部材30の縦板31を固定状態に取付け、スライド部材30の横板32の内面のスライド溝33にテーブル3側に固定の機体側横支持体26のフランジ部34をスライド自在に嵌合させ、スライド部材30側にはシリンダ等により構成するスライド用横行機構35の一端を取付け、スライド用横行機構35の他端を機体側横支持体26側に取付けているので、スライド用横行機構35によりスライド部材30をスライドさせて、スライド部材30はリーダー22をスライドさせ、その結果、掘削機5全体をスライドさせる。
Similarly, when the continuous wall or ground improvement is performed, the excavator 5 can be constructed without lifting, and the work process is shortened.
Specifically, the slide mechanism 25 attaches the vertical plate 31 of the slide member 30 to the moving support member (catch fork portion) 24 attached to the leader 22 that supports the excavator 5 in a fixed state, and A flange 34 of a machine body side lateral support 26 fixed to the table 3 side is slidably fitted in a slide groove 33 on the inner surface of the plate 32, and a slide traversing mechanism 35 constituted by a cylinder or the like is provided on the slide member 30 side. Since one end is attached and the other end of the slide traversing mechanism 35 is attached to the airframe side lateral support 26 side, the slide member 30 is slid by the slide traversing mechanism 35, and the slide member 30 slides the leader 22, As a result, the entire excavator 5 is slid.

1…地上走行車、2…走行装置、3…テーブル、5‥掘削機、6…クレーン、7…ポスト、10…駆動スプロケット、11…駆動軸、12…従動スプロケット、13…従動軸、14…無端チェン、15…掘削ビット、20…吊設部、21…ワイヤー、22…リーダー、24…移動側支持部材(キャッチフォーク部)、25…スライド機構、26…機体側横支持体、30…スライド部材、31…縦板、32…横板、33…スライド溝、34…フランジ部、35…スライド用横行機構、40…第二キャッチフォーク部、41…横ガイド杆、42…ガイド部、43…ガイド溝、44…第三キャッチフォーク部、45…横支持体。 DESCRIPTION OF SYMBOLS 1 ... Ground traveling vehicle, 2 ... Traveling apparatus, 3 ... Table, 5 ... Excavator, 6 ... Crane, 7 ... Post, 10 ... Drive sprocket, 11 ... Drive shaft, 12 ... Drive sprocket, 13 ... Drive shaft, 14 ... Endless chain, 15 ... excavation bit, 20 ... hanging part, 21 ... wire, 22 ... leader, 24 ... moving side support member (catch fork part), 25 ... slide mechanism, 26 ... machine side lateral support, 30 ... slide Member 31 ... Vertical plate 32 ... Horizontal plate 33 ... Slide groove 34 ... Flange portion 35 ... Transverse traverse mechanism 40 ... Second catch fork portion 41 ... Horizontal guide rod 42 ... Guide portion 43 ... Guide groove, 44 ... third catch fork, 45 ... lateral support.

Claims (1)

地上走行車1に設けたクレーン6に、縦状のポスト7の上部の駆動スプロケット10と前記ポスト7の下部の従動スプロケット12との間に複数の掘削ビット15を所定間隔おいて設けた無端チェン14を掛け回して構成した掘削機5を、ワイヤー21により昇降自在に吊設し、掘削機5は前記地上走行車1の走行方向に対して交差する横方向に掘削溝を掘削する構成とし、前記クレーン6には、前記掘削機5を支持するリーダー22の上部を垂下させ、前記地上走行車1のテーブル3に機体側横支持体26の基部を取付け、該機体側横支持体26の先端にフランジ部34を固定し、該フランジ部34にはスライド機構25のスライド部材30の内面のスライド溝33を係合させ、前記スライド部材30をスライドさせるスライド用横行機構35の一端をスライド部材30に取付け、スライド用横行機構35の他端を前記機体側横支持体26側に取付け、前記スライド部材30には、前記リーダー22の下部を支持するキャッチフォーク部24の基部を固定し、前記リーダー22の下部には第二キャッチフォーク部40の基部を固定状態に設け、第二キャッチフォーク部40の先端には掘削機5のポスト7を上下摺動自在に取付け、もって、掘削機5を引き抜くことなく、掘削作業中に掘削機5全体を前記スライド機構25によりリーダー22ごと横スライドさせて前記掘削溝の横方向に連続掘削可能に構成した掘削装置。 An endless chain in which a plurality of excavation bits 15 are provided at predetermined intervals between a drive sprocket 10 at the upper part of a vertical post 7 and a driven sprocket 12 at the lower part of the post 7 in a crane 6 provided on the ground traveling vehicle 1. 14, the excavator 5 configured to hang around is suspended by a wire 21 so that the excavator 5 can be raised and lowered, and the excavator 5 is configured to excavate a excavation groove in a lateral direction intersecting the traveling direction of the ground traveling vehicle 1; An upper portion of a leader 22 that supports the excavator 5 is suspended from the crane 6, and a base portion of a body side lateral support body 26 is attached to the table 3 of the ground traveling vehicle 1. The slide 34 is fixed to the flange 34, the slide groove 33 on the inner surface of the slide member 30 of the slide mechanism 25 is engaged with the flange 34, and the slide member 30 is slid. 5 is attached to the slide member 30, and the other end of the slide traversing mechanism 35 is attached to the machine body side lateral support body 26. The slide member 30 has a catch fork portion 24 that supports the lower portion of the leader 22. The base is fixed, the base of the second catch fork 40 is fixed to the lower part of the leader 22, and the post 7 of the excavator 5 is attached to the tip of the second catch fork 40 so as to be slidable up and down. Accordingly, the excavator is configured such that the entire excavator 5 can be horizontally slid along with the leader 22 by the slide mechanism 25 during the excavation work without pulling out the excavator 5 and can be continuously excavated in the lateral direction of the excavation groove .
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JPS59183926U (en) * 1983-05-26 1984-12-07 合田鉄工株式会社 Catchhawk of pile driver
JPH0527591Y2 (en) * 1987-12-26 1993-07-14
JPH0749753B2 (en) * 1990-05-08 1995-05-31 正人 大堀 Drilling rig
JP3314283B2 (en) * 1993-08-03 2002-08-12 中央自動車興業株式会社 Fine adjustment device for turning position of leader in pile driver
JPH09111765A (en) * 1995-10-19 1997-04-28 Hotta Kensetsu Kk Special catch fork for pile driving
ITTO980582A1 (en) * 1998-07-03 2000-01-03 Soilmec Spa EXCAVATION EQUIPMENT

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