JPH07238767A - Excavator - Google Patents
ExcavatorInfo
- Publication number
- JPH07238767A JPH07238767A JP2938694A JP2938694A JPH07238767A JP H07238767 A JPH07238767 A JP H07238767A JP 2938694 A JP2938694 A JP 2938694A JP 2938694 A JP2938694 A JP 2938694A JP H07238767 A JPH07238767 A JP H07238767A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- excavation
- leader
- mast
- leader mast
- 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
Links
Landscapes
- Earth Drilling (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、コンクリート杭、Ｈ型
杭、鋼管杭の施工などに使用する掘削機に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an excavator used for construction of concrete piles, H-shaped piles, steel pipe piles and the like.
【０００２】[0002]
【従来の技術】通常、コンクリート杭、Ｈ型杭、鋼管杭
の杭孔掘削施工にはオーガスクリューによるアースオー
ガ機が使用される。2. Description of the Related Art Normally, an earth auger machine using an auger screw is used for excavating pile holes for concrete piles, H-shaped piles and steel pipe piles.
【０００３】これは、図６に示すようにクローラ形式の
重機１に長尺なリーダマスト２を起伏自在に設け、この
リーダマスト２のリーダ２ａにモータと減速機からなる
駆動装置３を係合させ、この駆動装置３はリーダマスト
２のトップシーブ２ｂから昇降自在に吊り降ろす。As shown in FIG. 6, a crawler type heavy machine 1 is provided with a long leader mast 2 which can be raised and lowered, and a leader 2a of the leader mast 2 is engaged with a drive unit 3 composed of a motor and a speed reducer. Then, the drive device 3 is hung up and down from the top sheave 2b of the leader mast 2.
【０００４】そして駆動装置３はオーガスクリュー４の
上端に連結し、これを回転駆動する。The driving device 3 is connected to the upper end of the auger screw 4 and rotationally drives it.
【０００５】[0005]
【発明が解決しようとする課題】前記アースオーガ機で
は、リーダマスト２の長さが長くなり、オーガスクリュ
ー４の継ぎ足し等で駆動装置３がリーダマスト２の上部
に位置する時は、重心が高い非常に不安定な状態とな
り、重機１の転倒の危険も多い。In the earth auger machine, the length of the leader mast 2 becomes long, and when the drive device 3 is located above the leader mast 2 due to the addition of the auger screw 4, the center of gravity is high. It becomes very unstable, and there is a great risk of the heavy equipment 1 falling over.
【０００６】また、長いリーダマスト２を有する重機１
は、このリーダマスト２が邪魔になるので上方に空間の
ない場所では使用できないなどの問題もある。Heavy equipment 1 having a long leader mast 2
Has a problem that it cannot be used in a place where there is no space above because the reader mast 2 interferes.
【０００７】さらに、オーガスクリュー４ではスクリュ
ー羽根間に土砂が圧密状態で詰まると掘削抵抗が増し、
掘削不能の状態を招くこともある。この傾向は掘削深度
が大きく、オーガスクリュー４の長さが長くなる程著し
い。Further, in the auger screw 4, excavation resistance increases when soil is packed between screw blades in a compacted state,
It may lead to unexcavable conditions. This tendency becomes more remarkable as the excavation depth increases and the length of the auger screw 4 increases.
【０００８】本発明の目的は前記従来例の不都合を解消
し、オーガ軸等の回転駆動する錐揉み式の掘削軸を使用
する場合でも、リーダマストは短尺なものですみ、全体
としてコンパクトな重機となり、また、常に安定した状
態を保つことができて安全性が高く、しかも、掘削性能
にすぐれる掘削機を提供することにある。The object of the present invention is to eliminate the disadvantages of the above-mentioned conventional example, and even when using an auger type excavating shaft which is driven to rotate such as an auger shaft, the leader mast needs only a short length and is compact as a whole. Another object of the present invention is to provide an excavator that can maintain a stable state at all times, has high safety, and has excellent excavation performance.
【０００９】[0009]
【課題を解決するための手段】本発明は前記目的を達成
するため、クローラ形式の重機に短尺なリーダマストを
起伏自在に設け、左右にシリンダーによる昇降脚を設け
た駆動装置に筒状回転軸を上下に貫通するように立上
げ、この駆動装置を前記リーダマストのリーダに昇降自
在に係合させ、オーガ軸等の掘削軸に形成した把持ドラ
ムを前記筒状回転軸内周に係止可能としたこと、およ
び、シリンダーによる昇降脚下端間に、締め付け可能な
チャック装置を配設すること、さらに、掘削軸は、軸周
面から離れ、かつ、周方向に沿って湾曲する圧密翼を備
えることを要旨とするものである。In order to achieve the above-mentioned object, the present invention provides a driving device having a crawler type heavy machine in which a short leader mast is erected up and down and cylinders are provided on the left and right to raise and lower legs. Up so that it penetrates vertically, and this drive device is engaged with the leader of the leader mast so that it can move up and down, and the gripping drum formed on the excavating shaft such as an auger shaft can be locked on the inner circumference of the cylindrical rotating shaft. And that a clamping device that can be tightened is provided between the lower ends of the elevating legs of the cylinder, and the excavation shaft is provided with a compression blade that is separated from the shaft circumferential surface and that curves along the circumferential direction. This is the summary.
【００１０】[0010]
【作用】請求項１記載の本発明によれば、オーガ軸等の
掘削軸はこれに形成した把持ドラムを筒状回転軸内周に
係止することで、この筒状回転軸により回転駆動され、
地盤を掘削する。そして、掘削軸は筒状回転軸の上端付
近の係止されるのと、下端付近に係止されるのとで該筒
状回転軸の長さ分だけ地盤への挿入長を調整でき、さら
に短尺なリーダマストを昇降する駆動装置でこの筒状回
転軸が上下に往復運動することに伴い、尺取り虫式に掘
削軸を地盤に送り込み、また、引き上げることができ
る。According to the present invention as set forth in claim 1, the excavating shaft such as an auger shaft is rotationally driven by the cylindrical rotating shaft by locking the gripping drum formed on the excavating shaft on the inner circumference of the cylindrical rotating shaft. ,
Excavate the ground. The excavation shaft is locked near the upper end of the tubular rotary shaft and is locked near the lower end, so that the length of insertion of the tubular rotary shaft into the ground can be adjusted by the length of the tubular rotary shaft. As the tubular rotating shaft reciprocates up and down with a drive device that raises and lowers a short leader mast, the excavating shaft can be sent to the ground and lifted up in a scaled insect type.
【００１１】請求項２記載の本発明によれば、前記作用
に加えて、チャック装置は掘削軸の掘削に際する芯出し
を行うとともに、掘削軸の継ぎ足し等を行う場合に孔内
にある掘削軸の上端の保持を行う。According to the second aspect of the present invention, in addition to the above-mentioned action, the chuck device performs the centering for excavating the excavation shaft and the excavation in the hole when the excavation shaft is replenished. Hold the top of the shaft.
【００１２】請求項３記載の本発明によれば、掘削軸は
その先端の掘削ヘッドで玉石、転石混じりの地盤では玉
石等を切削し、また、岩盤ではこれを切削して穿孔し、
このような穿孔にもとない掘削土砂もしくは掘削土砂と
ベントナイト液等の安定液との混練物が圧密翼で孔壁に
塗着され、孔壁圧密を行う。According to the present invention as set forth in claim 3, the excavation shaft is provided with an excavation head at the tip thereof for cutting boulders, boulders or the like on the ground mixed with boulders, and on rocks, the boulders are cut and perforated.
The excavated earth or sand or a kneaded material of the excavated earth and a stable liquid such as bentonite liquid is applied to the hole wall by a consolidation blade to perform hole wall consolidation.
【００１３】ボイド率はローム層では約60〜70％、砂層
では約35〜45％、礫層では約25〜35％であるが、前記孔
壁圧密によりボイド率を変化させ、いわば地盤の緩みに
よる締め付け作用を低下させて掘削効率を上げることが
できる。また、掘削土砂はこのような孔壁圧密に利用さ
れることで、地上に全く排出されないか、排出されても
その量は少なくてすむ。The void ratio is about 60 to 70% in the loam layer, about 35 to 45% in the sand layer, and about 25 to 35% in the gravel layer. The void ratio is changed by the hole wall consolidation, so to speak, the looseness of the ground. It is possible to improve the excavation efficiency by reducing the tightening action by. Further, since the excavated soil is used for such hole wall consolidation, it is not discharged to the ground at all, or the amount thereof is small even if discharged.
【００１４】また、圧密された孔壁の掘削孔内にコンク
リートパイル、Ｈ型鋼、鋼管などを建込んだ際には、こ
の孔壁が緩みながらこれらコンクリートパイル、Ｈ型
鋼、鋼管などの周面を締め付けることになり、安定した
杭が得られる。When concrete piles, H-shaped steels, steel pipes, etc. are built in the excavated holes of the hole walls that have been consolidated, the peripheral surfaces of the concrete piles, H-shaped steels, steel pipes, etc. are loosened while the hole walls are loosened. It will be tightened and a stable pile can be obtained.
【００１５】[0015]
【実施例】以下、図面について本発明の実施例を詳細に
説明する。図１は本発明の掘削機の１実施例を示す側面
図、図２は同上要部の正面図、図３は同上平面図で、図
中５は履帯５ａを走行手段として有するクローラ形式の
重機で、その前後にはアウトリガー６を設けている。Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a side view showing an embodiment of an excavator of the present invention, FIG. 2 is a front view of the essential parts of the same, FIG. 3 is a plan view of the same, and 5 is a crawler type heavy machine having a crawler belt 5a as a traveling means. Outriggers 6 are provided before and after that.
【００１６】この重機５に短尺なリーダマスト７を、そ
の下端を軸着し、また、上端を両端部を軸着した斜め掛
けのシリンダー８で回転自在に支承することで起伏自在
に設ける。このリーダマスト７の下端軸着部は支持杆９
により構成されるが、スライドジャッキ10で前後動自在
とした。図中７ａは前記リーダマスト７のリーダであ
る。A short leader mast 7 is rotatably supported on the heavy machine 5 by rotatably supporting a lower end of the leader mast 7 and an upper end of the cylinder 8 which is diagonally mounted. The lower end shaft attachment part of this leader mast 7 is a support rod 9.
The slide jack 10 can be moved back and forth. In the figure, 7a is a leader of the reader mast 7.
【００１７】図中11はモータ12を立ち上げ、これが結合
する減速機を内部に設けた駆動装置で、減速機が外周に
結合するものとして、ガイドケーシングともいうべき筒
状回転軸13を下方が少し下側に出るようにして上下に貫
通するように立上げる。Reference numeral 11 in the drawing denotes a drive device in which a motor 12 is started up and a reduction gear to which the motor 12 is connected is provided inside. As shown in FIG. Stand up so that it goes out a little below and penetrates vertically.
【００１８】また、駆動装置11の左右にシリンダーによ
る昇降脚14を設けてこれで地上から立設するようにし、
さらに、背後には湾曲アーム状の係合金物15を設け、こ
れで前記短尺なリーダマスト７のリーダ７ａに昇降自在
に係合させた。Cylinder lift legs 14 are provided on the left and right of the drive unit 11 so that they can be erected from the ground.
Further, a curved arm-shaped engagement hardware 15 is provided on the back side, and this engages with the leader 7a of the short leader mast 7 so as to be able to move up and down.
【００１９】図４に本発明で使用する掘削軸16を示す
が、スクリュー軸であるオーガ軸の変形として断続的な
スクリュー羽根を攪拌翼17として軸周囲に設け、さら
に、軸周面から離れ、かつ、周方向に沿って湾曲する圧
密翼18を設ける。なお、掘削軸16は複数継ぎ足し可能
で、先端には掘削ヘッド（図示せず）を接続する。FIG. 4 shows an excavation shaft 16 used in the present invention. As a modification of the auger shaft which is a screw shaft, intermittent screw blades are provided around the shaft as stirring blades 17, and further away from the shaft peripheral surface, In addition, a compacting blade 18 that curves along the circumferential direction is provided. A plurality of excavation shafts 16 can be added, and an excavation head (not shown) is connected to the tip.
【００２０】前記掘削軸16の上端部分にに把持ドラム19
を取り付け、この把持ドラム19を介して前記筒状回転軸
13の内部に挿入し、下方へ突出させた掘削軸16を係止可
能とした。把持ドラム19の上に出る掘削軸16の上端には
セメントミルク等の固化液注入用のスイベル22を設け
る。A gripping drum 19 is provided on the upper end of the excavation shaft 16.
The cylindrical rotary shaft is attached via this gripping drum 19.
The excavation shaft 16 inserted into the inside of the 13 and protruding downward can be locked. A swivel 22 for injecting a solidified liquid such as cement milk is provided on the upper end of the excavation shaft 16 which is above the gripping drum 19.
【００２１】前記把持ドラム19による筒状回転軸13の内
周への係止方法としては、図示の例では、筒状回転軸13
にシリンダー等でピンが内側に突出するロック装置21を
上下に適宜間隔に設ける。また、係止方法はこの他にボ
ルト止めや、押圧棒や押圧片を把持ドラム19側に設ける
ことなどが考えられる。As a method of locking the cylindrical rotary shaft 13 to the inner circumference by the gripping drum 19, in the illustrated example, the cylindrical rotary shaft 13 is
A lock device (21) with pins protruding inward is provided vertically at appropriate intervals by a cylinder or the like. In addition, as the locking method, it is conceivable to use a bolt or to provide a pressing rod or a pressing piece on the gripping drum 19 side.
【００２２】また、図中20は掘削軸16のチャック装置
で、周囲に接地プレート20ａを張り出したセンターホー
ル式のもので、ホール周面にはシリンダー20ｂでホール
径を狭める押圧板20ｃを配した。このチャック装置20は
前記シリンダーによる昇降脚14の下端間に、この昇降脚
14で前記接地プレート20ａを踏み付けるようにして配設
する。Reference numeral 20 in the drawing is a chuck device for the excavation shaft 16, which is of a center hole type in which a ground plate 20a is overhanging around, and a pressing plate 20c for narrowing the hole diameter by a cylinder 20b is arranged on the peripheral surface of the hole. . The chuck device 20 is provided between the lower ends of the lifting legs 14 formed by the cylinders.
At 14, the ground plate 20a is arranged so as to step on it.
【００２３】次に、使用法および動作について説明す
る。掘削軸16は筒状回転軸13の上部開口から差し入れ、
ロック装置21で把持ドラム19を筒状回転軸13の内周に係
止する。また、昇降脚14を伸長させて駆動装置11は短尺
なリーダマスト７の上部に位置させておく。Next, usage and operation will be described. The drilling shaft 16 is inserted from the upper opening of the tubular rotary shaft 13,
The locking device 21 locks the gripping drum 19 on the inner circumference of the cylindrical rotary shaft 13. Further, the elevating legs 14 are extended so that the drive device 11 is positioned above the short leader mast 7.
【００２４】モータ12を駆動すると減速機を介して筒状
回転軸13が回転し、それに伴い掘削軸16が回転駆動さ
れ、地盤を掘削する。When the motor 12 is driven, the cylindrical rotary shaft 13 is rotated through the speed reducer, and the excavation shaft 16 is rotationally driven accordingly, and the ground is excavated.
【００２５】掘削軸16はその先端の掘削ヘッドで玉石、
転石混じりの地盤では玉石等を切削し、また、岩盤では
これを切削して穿孔し、このような穿孔にもとない掘削
土砂もしくは掘削土砂とベントナイト液等の安定液との
混合が攪拌翼17でなされ、その混練物が圧密翼18で孔壁
に塗着される。The excavation shaft 16 is a boulder at the tip of the excavation head,
In the ground mixed with boulders, boulders or the like are cut, and in rock, the boulders are cut and drilled. Then, the kneaded material is applied to the hole wall by the consolidation blade 18.
【００２６】この掘削軸16での掘削は、セメントミルク
等の固化材を注出しながら行ってもよい。また、チャッ
ク装置20は掘削軸16の掘削に際する振れ止めとして作用
に芯出しを行う。The excavation with the excavation shaft 16 may be performed while pouring out a solidifying material such as cement milk. Further, the chuck device 20 functions as a steady stop during excavation of the excavation shaft 16 to center the action.
【００２７】筒状回転軸13は昇降脚14をフリーとした際
の駆動装置11の下降とともに下降するが、前記把持ドラ
ム19は筒状回転軸13の上端付近に係止されているものと
して、この筒状回転軸13が下降位置にきた場合に把持ド
ラム19への係止を解除し、昇降脚14を伸ばして再度駆動
装置11を上昇させ、今度は筒状回転軸13の下端位置に把
持ドラム19を係止し直す。これでさらに掘削軸16を地盤
に挿入することができる。Although the cylindrical rotary shaft 13 descends as the drive device 11 descends when the elevating legs 14 are free, the gripping drum 19 is locked near the upper end of the cylindrical rotary shaft 13. When the tubular rotary shaft 13 reaches the lowered position, the engagement with the gripping drum 19 is released, the elevating leg 14 is extended, the drive device 11 is raised again, and this time the tubular rotary shaft 13 is gripped at the lower end position. Relock drum 19. With this, the excavation shaft 16 can be further inserted into the ground.
【００２８】このように短尺なリーダマスト７を昇降す
る駆動装置11でこの筒状回転軸13が上下に往復運動する
ことに伴い、尺取り虫式に掘削軸16を適宜継ぎ足しなが
ら地盤に送り込み、削孔を行う。As the cylindrical rotating shaft 13 reciprocates up and down by the driving device 11 for raising and lowering the short leader mast 7 as described above, the excavating shaft 16 is appropriately replenished and fed into the ground for drilling. I do.
【００２９】引上げの際も同様であり、継ぎ足した掘削
軸16を適宜分離するにはチャック装置20で孔内に残る掘
削軸16を保持してその上部分を外すようにする。The same applies when pulling up, and in order to appropriately separate the excavated shaft 16 that has been added, the chuck device 20 holds the excavated shaft 16 remaining in the hole and removes the upper portion thereof.
【００３０】なお、図示は省略するが、他の使用法とし
て筒状回転軸13内にケーシングをセットし、このケーシ
ングで地盤をコア状に掘削することもできる。Although not shown, it is also possible to set a casing in the cylindrical rotary shaft 13 and excavate the ground into a core shape with this casing as another usage.
【００３１】また、図５に示すように、モンケン23を筒
状回転軸13内に配設するようにして杭の打撃を行うこと
もできる。図中24はシリンダー25を駆動源とするモンケ
ン23の駆動装置で、これは筒状回転軸13の上部に結合さ
せる。Further, as shown in FIG. 5, it is also possible to strike the pile by disposing the Monken 23 in the cylindrical rotary shaft 13. In the figure, reference numeral 24 is a drive device for the Monken 23, which uses a cylinder 25 as a drive source, and is connected to the upper part of the cylindrical rotary shaft 13.
【００３２】掘削作業を終了し、駆動装置11をリーダマ
スト７から外せば、クローラ形式の重機５はこの短尺な
リーダマスト７だけのものとなる。そして、図１に示す
ようにリーダマスト７はこれを傾倒させることにより、
邪魔にならないようにして重機５を移動できる。When the excavation work is completed and the drive unit 11 is removed from the leader mast 7, the heavy equipment 5 of the crawler type becomes only this short leader mast 7. Then, as shown in FIG. 1, the leader mast 7 is tilted so that
The heavy equipment 5 can be moved out of the way.
【００３３】さらに連続した削孔を行うなど、作業を続
行する上で、駆動装置11を着けたまま移動する際も駆動
装置11を短尺なリーダマスト７の下方に位置させて筒状
回転軸13がリーダマスト７に並ぶようにすれば、重心を
低くして安定して移動できる。When the work is continued with the drive device 11 still attached, the drive device 11 is positioned below the short leader mast 7 to continue the work such as continuous drilling. By aligning with the leader mast 7, the center of gravity can be lowered to allow stable movement.
【００３４】[0034]
【発明の効果】以上述べたように本発明の掘削機は、オ
ーガ軸等の回転駆動する錐揉み式の掘削軸を使用する場
合でも、リーダマストは短尺なものですみ、全体として
コンパクトな重機となるものである。As described above, according to the excavator of the present invention, the leader mast is short even when the rotary driving conical drilling shaft such as an auger shaft is used. It will be.
【００３５】また、重心が高くならず、常に安定した状
態を保つことができて安全性が高いものである。Further, the center of gravity does not become high, and a stable state can be always maintained, so that the safety is high.
【００３６】しかも、請求項３記載の本発明では孔壁圧
密を行うことで掘削性能に優れるものとなる。In addition, in the present invention according to claim 3, the hole wall is compacted so that the excavation performance becomes excellent.
【図１】本発明の掘削機の１実施例を示す側面図であ
る。FIG. 1 is a side view showing an embodiment of an excavator of the present invention.
【図２】本発明の掘削機の１実施例を示す要部の正面図
である。FIG. 2 is a front view of a main part showing an embodiment of the excavator of the present invention.
【図３】本発明の掘削機の１実施例を示す平面図であ
る。FIG. 3 is a plan view showing an embodiment of the excavator of the present invention.
【図４】本発明の掘削機で使用する掘削軸の正面図であ
る。FIG. 4 is a front view of an excavation shaft used in the excavator of the present invention.
【図５】本発明の掘削機の他の使用例を示す側面図であ
る。FIG. 5 is a side view showing another example of use of the excavator of the present invention.
【図６】従来例を示す側面図である。FIG. 6 is a side view showing a conventional example.
１…重機 ２…リーダマスト ２ａ…リーダ ２ｂ…トップシー
ブ ３…駆動装置 ４…オーガスクリ
ュー ５…重機 ５ａ…履帯 ６…アウトリガー ７…リーダマスト ７ａ…リーダ ８…シリンダー ９…支持杆 10…スライドジャ
ッキ 11…駆動装置 12…モータ 13…筒状回転軸 14…昇降脚 15…係合金物 16…掘削軸 17…攪拌翼 18…圧密翼 19…把持ドラム 20…チャック装置 20ａ…接地プレート 20ｂ…シリンダー 20ｃ…押圧板 21…ロック装置 22…スイベル 23…モンケン 24…駆動装置 25…シリンダーDESCRIPTION OF SYMBOLS 1 ... Heavy equipment 2 ... Leader mast 2a ... Leader 2b ... Top sheave 3 ... Drive device 4 ... Auger screw 5 ... Heavy equipment 5a ... Crawler track 6 ... Outrigger 7 ... Leader mast 7a ... Leader 8 ... Cylinder 9 ... Support rod 10 ... Slide jack 11 … Drive device 12… Motor 13… Cylindrical rotary shaft 14… Lifting leg 15… Engagement hardware 16… Excavation shaft 17… Stirring blade 18… Consolidation blade 19… Grasping drum 20… Chuck device 20a… Ground plate 20b… Cylinder 20c… Pressing plate 21… Lock device 22… Swivel 23… Monken 24… Drive device 25… Cylinder
Claims (3)
トを起伏自在に設け、左右にシリンダーによる昇降脚を
設けた駆動装置に筒状回転軸を上下に貫通するように立
上げ、この駆動装置を前記リーダマストのリーダに昇降
自在に係合させ、オーガ軸等の掘削軸に形成した把持ド
ラムを前記筒状回転軸内周に係止可能としたことを特徴
とする掘削機。1. A crawler type heavy machine is provided with a short leader mast which can be raised and lowered, and a cylindrical drive shaft is erected so as to vertically pass through a drive device provided with elevating legs by cylinders. An excavator, characterized in that a grasping drum formed on an excavation shaft such as an auger shaft can be engaged with a leader of the leader mast so as to be able to be engaged with the inner circumference of the cylindrical rotary shaft.
付け可能なチャック装置を配設する請求項１記載の掘削
機。2. The excavator according to claim 1, wherein a chuck device that can be tightened is provided between the lower ends of the elevating legs formed by cylinders.
向に沿って湾曲する圧密翼を備える請求項１および請求
項２記載の掘削機。3. The excavator according to claim 1 or 2, wherein the excavation shaft includes a compaction blade that is separated from the shaft peripheral surface and that curves along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6029386A JP2645976B2 (en) | 1994-02-28 | 1994-02-28 | Excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6029386A JP2645976B2 (en) | 1994-02-28 | 1994-02-28 | Excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07238767A true JPH07238767A (en) | 1995-09-12 |
| JP2645976B2 JP2645976B2 (en) | 1997-08-25 |
Family
ID=12274706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6029386A Expired - Fee Related JP2645976B2 (en) | 1994-02-28 | 1994-02-28 | Excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2645976B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008255603A (en) * | 2007-04-03 | 2008-10-23 | Toda Constr Co Ltd | Driving method of inner excavation pile under low and narrow restriction |
| JP2013087582A (en) * | 2011-10-21 | 2013-05-13 | Takenaka Komuten Co Ltd | Excavation rod and excavation method |
| JP2018053478A (en) * | 2016-09-27 | 2018-04-05 | 株式会社エムエルティーソイル | Drilling machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63194995U (en) * | 1987-05-29 | 1988-12-15 | ||
| JPH04203091A (en) * | 1990-11-30 | 1992-07-23 | Tokyu Constr Co Ltd | Earth auger device |
-
1994
- 1994-02-28 JP JP6029386A patent/JP2645976B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63194995U (en) * | 1987-05-29 | 1988-12-15 | ||
| JPH04203091A (en) * | 1990-11-30 | 1992-07-23 | Tokyu Constr Co Ltd | Earth auger device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008255603A (en) * | 2007-04-03 | 2008-10-23 | Toda Constr Co Ltd | Driving method of inner excavation pile under low and narrow restriction |
| JP2013087582A (en) * | 2011-10-21 | 2013-05-13 | Takenaka Komuten Co Ltd | Excavation rod and excavation method |
| JP2018053478A (en) * | 2016-09-27 | 2018-04-05 | 株式会社エムエルティーソイル | Drilling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2645976B2 (en) | 1997-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60113763T2 (en) | Equipment and method for earth drilling | |
| CN108468334A (en) | Sandy pear variety is dry to dig clay dado pore-creating filling pile constructing device | |
| JPH07238767A (en) | Excavator | |
| CN217999477U (en) | Excavation equipment for construction foundation pit of rear-arranged reinforcement cast-in-place pile | |
| JP3418343B2 (en) | Earth retaining wall formation method in root cutting method | |
| JP5876353B2 (en) | Steel pipe pile construction method | |
| JPH08128034A (en) | Small type soil improving device and soil improving construction method and boring rod | |
| JP2995430B2 (en) | Drilling equipment for steel pipe pile with excavator for steel pipe pile and construction method of steel pipe pile | |
| JP4887460B1 (en) | Ground compaction device | |
| JP2916598B2 (en) | Excavator | |
| JPH07189241A (en) | Ground improving machine and method of ground improving construction | |
| CN112144519A (en) | Drilling tool, cement-soil stirring pile sinking all-in-one machine and construction method of composite pile | |
| JPH08165876A (en) | Excavator | |
| JPH0414513A (en) | Ground consolidating method and ground consolidating device used therefor | |
| JP2715275B2 (en) | Excavation method | |
| JP2019052440A (en) | Soil cement pile construction method | |
| JPS6192214A (en) | Method of pulling out pile | |
| JPH0643695B2 (en) | Foundation pile construction method | |
| JP3239950B2 (en) | Pile press-in system and pile press-in method using the same | |
| JP2023101914A (en) | Ground improvement machine | |
| JPS61126219A (en) | Ground stabilizing processing method and ground stabilizing processor | |
| JPS63161217A (en) | Excavation work | |
| JPH08177078A (en) | Construction of continuous earth retaining wall | |
| JP3129537B2 (en) | Vertical hole drilling rig | |
| JP2000144735A (en) | Removal device of existing pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |