JP2000008757A - No-earth discharge auger, rod - Google Patents
No-earth discharge auger, rodInfo
- Publication number
- JP2000008757A JP2000008757A JP10181225A JP18122598A JP2000008757A JP 2000008757 A JP2000008757 A JP 2000008757A JP 10181225 A JP10181225 A JP 10181225A JP 18122598 A JP18122598 A JP 18122598A JP 2000008757 A JP2000008757 A JP 2000008757A
- Authority
- JP
- Japan
- Prior art keywords
- auger rod
- earth
- auger
- rod
- hole
- 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]
【発明の属する技術分野】この発明は基礎杭の構築や地
盤改良工法において、強固な孔壁を有する杭孔を無排土
で形成するためのオーガロッド及び掘孔装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auger rod and a drilling device for forming a pile hole having a solid hole wall without discharging soil in the construction of a foundation pile and a soil improvement method.
【０００２】[0002]
【従来の技術】杭を設置する孔を地盤に掘削するための
従来の工法は、オーガなどで掘削した土砂を地上に排出
していたが、掘削残土は産業廃棄物として処分しなけれ
ばならず労力と経費を必要とした。2. Description of the Related Art In the conventional method for excavating a hole for installing a pile in the ground, soil excavated by an auger or the like is discharged to the ground, but excavated soil must be disposed of as industrial waste. It required labor and expense.
【０００３】そのため、本発明者は先に特公昭60−2735
4の掘孔装置を提案した。即ち、オーガロッドの断面を
三角形とし、頂点部分を圧土面に形成し、オーガロッド
の先端部に錐部を設け、オーガロッドの周辺を上昇しよ
うとする掘削土砂を回転するオーガロッドの圧土面で孔
壁に押しつけ、排土せずに強固な圧密壁を形成するもの
である。[0003] Therefore, the present inventor has previously described Japanese Patent Publication No. 60-2735.
Four drilling devices were proposed. That is, the cross section of the auger rod is triangular, the apex portion is formed on the compacted surface, the cone portion is provided at the tip of the auger rod, and the compacted soil of the auger rod which rotates the excavated earth and sand to rise around the auger rod. The surface is pressed against the hole wall to form a solid compacted wall without discharging the soil.
【０００３】[0003]
【発明が解決しようとする課題】三角形のオーガロッド
は、掘孔時において頂点部分で集中的に掘削土砂を孔壁
に押し付けるため摩耗損傷が大きく、寿命が短かいとい
う欠点があった本発明はこの欠点を解消しようとするも
ので、構造が単純で量産に適し、且つ部分的な摩耗が発
生しない掘孔装置を提供するものである。SUMMARY OF THE INVENTION The triangular auger rod has the disadvantages that the excavated earth and sand are intensively pressed against the hole wall at the apex portion at the time of excavation, so that abrasion damage is large and the life is short. An object of the present invention is to provide a drilling device which has a simple structure, is suitable for mass production, and does not cause partial wear.
【０００４】[0004]
【課題を解決するための手段】オーガロッドの断面を外
側に凸な曲線からなる三角形とし、オーガロッドの局部
的摩耗を減少させたのである。さらに、オーガロッドの
頂点部分の稜線に沿って圧土部材を設けることにより、
オーガロッド本体部分の摩耗を防止したのである。ま
た、圧土部材をオーガロッドの軸方向に断続的にして不
連続部を設けた。The cross section of the auger rod is formed into a triangular shape formed by an outwardly convex curve to reduce local wear of the auger rod. Furthermore, by providing an earth pressure member along the ridgeline of the apex portion of the auger rod,
The wear of the auger rod body was prevented. Further, a discontinuous portion was provided by intermittently pressing the earth pressing member in the axial direction of the auger rod.
【０００５】[0005]
【作用】オーガロッドの先端に掘削ヘッドを取り付け、
地盤を掘進すると掘削土砂は掘削刃によって上昇させら
れ、オーガロッドの位置まで達し、オーガロッドの曲線
部と掘削孔の間の空間に入り、オーガロッドの回転によ
って三角形の頂点に位置する圧土部材によって孔壁に押
し付けられ、孔壁に塗りこめられる。[Action] Attach a drilling head to the tip of the auger rod,
When excavating the ground, the excavated soil is lifted by the excavation blade, reaches the position of the auger rod, enters the space between the curved part of the auger rod and the excavation hole, and the pressed earth member located at the top of the triangle by the rotation of the auger rod Is pressed against the hole wall and is applied to the hole wall.
【０００６】一度で塗りこめられなかった余剰の土砂
は、掘削孔とオーガロッドとの間の次の空間に入り、２
つ目の圧土部材で孔壁に押しつけられる。この動作を繰
り返すことにより、掘削土砂は殆どすべて孔壁に塗りこ
められ、地上に排土されるものがなくなる。Excess sediment that has not been applied at one time enters the next space between the excavation hole and the auger rod.
It is pressed against the hole wall by the second pressure member. By repeating this operation, almost all the excavated earth and sand is applied to the hole wall, and nothing is discharged to the ground.
【０００７】圧土部材を断続的にしてあるので、石など
が存在しても不連続部から逃がすことができる。アング
ル材をオーガロッドに溶接して圧土部材とすると、摩耗
が大きくなったり、石によって破損した場合は簡単に交
換することができる。[0007] Since the earth pressing member is intermittent, even if there is a stone or the like, it can escape from the discontinuous portion. If the angle material is welded to the auger rod to form the earth pressure member, if the wear increases or the stone is damaged, it can be easily replaced.
【０００８】掘削した孔壁とオーガロッドの間に空間が
形成されているので掘削孔の底部が大気と連通してお
り、オーガロッドを引き抜く際に先端部が真空状態にな
って、孔壁が崩壊することがない。Since a space is formed between the excavated hole wall and the auger rod, the bottom of the excavation hole is in communication with the atmosphere. Does not collapse.
【０００９】[0009]
【発明の実施の形態】本発明の実施の態様を図に基づい
て説明する。図1に示すように、鋼鉄製のオーガロッド
１は、断面が外側に凸な曲線２から構成される三角形で
ある。曲線の形状は、頂点を中心とし、頂点間の距離を
半径とする円弧である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the auger rod 1 made of steel has a triangular shape composed of a curve 2 whose cross section is outwardly convex. The shape of the curve is an arc with the vertices as the center and the distance between the vertices as the radius.
【００１０】三角形の頂点２１には、アングル材を溶接
した圧土部材２２がオーガロッド１の軸方向に設けてあ
る。オーガロッドの１の頂部には、駆動軸１１が形成さ
れ、連結用のピン孔１２が設けてあり、中心にはグラウ
ト注入やジェット噴射に使用するパイプ１３配設してあ
る。圧土部材２２を超硬材料とすると、長期間の使用に
耐えることができる。掘削ヘッド３は、図２に示すよう
にスクリュー３１を有し、先端部に先掘刃３２を設けて
ある。必要に応じて、モルタル、エアー、ジエット水等
のパイプ１３をオーガロッドの中心に形成し、掘削ヘッ
ド３先端に開孔した噴射口と連通させておく。At the apex 21 of the triangle, an earth pressing member 22 obtained by welding an angle material is provided in the axial direction of the auger rod 1. A drive shaft 11 is formed at the top of one of the auger rods, and a pin hole 12 for connection is provided. A pipe 13 used for grout injection or jet injection is provided at the center. When the compacting member 22 is made of a super-hard material, it can withstand long-term use. The excavating head 3 has a screw 31 as shown in FIG. If necessary, a pipe 13 of mortar, air, jet water or the like is formed at the center of the auger rod, and communicates with the injection hole opened at the tip of the excavating head 3.
【００１１】掘孔深度によりオーガロッド１は連結して
延長させることが可能である。図３に示すように、曲線
を、三角形の頂点から延びる直線または緩やかな円弧と
曲率半径の小さな曲線からなる形状とすると、オーガロ
ッド１の回転に従って曲線と孔壁２１の間の空間２３が
徐々に小さくなり、掘削土砂を円滑に孔壁２５に塗りこ
むことができる。The auger rod 1 can be connected and extended depending on the depth of the excavation. As shown in FIG. 3, when the curve is formed of a straight line extending from the apex of the triangle or a gentle arc and a curve having a small radius of curvature, the space 23 between the curve and the hole wall 21 gradually increases as the auger rod 1 rotates. And the excavated earth and sand can be smoothly applied to the hole wall 25.
【００１２】また、図４に示すように圧土部材２２を断
続的に設け、掘削土砂の一部を次の空間に逃がすように
する。不連続部２４は互い違いに設け、不連続部２４が
同じ位置にこないようにする。掘削が完了したらオーガ
ロッドを引き抜くのであるが、オーガロッド１と孔壁２
５との間に空間２３が存在するので引き抜き時に大気が
スムースに掘削孔底部に流入していき、先端部が真空状
態になって孔壁２５が崩壊するようなことがない。Also, as shown in FIG. 4, a pressure earth member 22 is provided intermittently so that part of the excavated earth and sand is released to the next space. The discontinuous portions 24 are provided alternately so that the discontinuous portions 24 do not come to the same position. When the excavation is completed, the auger rod is pulled out.
Since the space 23 exists between the hole 5 and the hole 5, the air smoothly flows into the bottom of the excavation hole at the time of withdrawal, so that the distal end is not in a vacuum state and the hole wall 25 does not collapse.
【００１５】[0015]
【発明の効果】オーガロッドの断面が曲線三角形に形成
されているので、掘削土砂が曲面によって徐々に押圧さ
れ、頂点で完全に孔壁に塗りこめることができる。ま
た、稜線に圧土部材を設けたので、オーガロッド本体の
摩耗による損傷が解消された。さらに、圧土部材が摩耗
したら交換すればよいので、オーガロッドとしての寿命
が長くなり、コスト低減に効果がある。The cross section of the auger rod is formed as a curved triangle, so that the excavated earth and sand is gradually pressed by the curved surface, and can be completely applied to the hole wall at the apex. In addition, since the pressure earth member is provided on the ridge line, damage due to wear of the auger rod body is eliminated. In addition, since the pressure earth member may be replaced when worn, the life of the auger rod is prolonged, which is effective in cost reduction.
【図１】オーガロッドの側面と断面を示す図FIG. 1 is a diagram showing a side surface and a cross section of an auger rod.
【図２】各種オーガヘッドの正面図FIG. 2 is a front view of various auger heads.
【図３】オーガロッドの他の実施例の断面図FIG. 3 is a cross-sectional view of another embodiment of the auger rod.
【図4】圧土部材が不連続なオーガロッドの正面図FIG. 4 is a front view of an auger rod having discontinuous earth members.
１…オーガロッド、２…曲線、２２…圧土部材、２４…
不連続部1 ... auger rod, 2 ... curve, 22 ... pressure member, 24 ...
Discontinuity
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１１年５月２５日（１９９９．５．２
５）[Submission date] May 25, 1999 (1999.5.2
5)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【書類名】 明細書[Document Name] Statement
【発明の名称】無排土オーガロッド[Title of the Invention] Non-discharged auger rod
【特許請求の範囲】[Claims]
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【発明の属する技術分野】この発明は基礎杭の構築や地
盤改良工法において、強固な孔壁を有する杭孔を無排土
で形成するためのオーガロッドに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auger rod for forming a pile hole having a solid hole wall without discharging soil in the construction of a foundation pile or a soil improvement method.
【０００２】[0002]
【従来の技術】杭を設置する孔を地盤に掘削するための
従来の工法は、オーガなどで掘削した土砂を地上に排出
していたが、掘削残土は産業廃棄物として処分しなけれ
ばならず労力と経費を必要とした。2. Description of the Related Art In the conventional method for excavating a hole for installing a pile in the ground, earth and sand excavated by an auger or the like was discharged to the ground, but the excavated soil must be disposed of as industrial waste. It required labor and expense.
【０００３】そのため、本発明者は先に特公昭６０−２
７３５４号の掘孔装置を提案した。即ち、オーガロッド
の断面を三角形とし、頂点部分を圧土面に形成し、オー
ガロッドの先端部に錐部を設け、オーガロッドの周辺を
上昇しようとする掘削土砂を回転するオーガロッドの圧
土面で孔壁に押しつけ、排土せずに強固な圧密壁を形成
するものである。[0003] For this reason, the present inventor has previously described Japanese Patent Publication No. Sho 60-2.
No. 7354 was proposed. That is, the cross section of the auger rod is triangular, the apex portion is formed on the compacted surface, the cone portion is provided at the tip of the auger rod, and the compacted soil of the auger rod which rotates the excavated earth and sand to rise around the auger rod. The surface is pressed against the hole wall to form a solid compacted wall without discharging the soil.
【０００４】[0004]
【発明が解決しようとする課題】三角形のオーガロッド
は、掘孔時において頂点部分で集中的に掘削土砂を孔壁
に押し付けるため摩耗損傷が大きく、寿命が短かいとい
う欠点があった。本発明はこの欠点を解消しようとする
もので、構造が単純で量産に適し、且つ部分的な摩耗が
発生しないオーガロッドを提供するものである。The triangular auger rod has the drawback that the excavated earth and sand is intensively pressed against the hole wall at the apex portion at the time of excavation, so that abrasion damage is large and the life is short. An object of the present invention is to provide an auger rod having a simple structure, suitable for mass production, and free from partial wear.
【０００５】[0005]
【課題を解決するための手段】オーガロッドの断面を外
側に凸な曲線からなる三角形とし、オーガロッドの局部
的摩耗を減少させたのである。さらに、オーガロッドの
頂点部分の稜線に沿って圧土部材を設けることにより、
オーガロッド本体部分の摩耗を防止したのである。ま
た、圧土部材をオーガロッドの軸方向に断続的にして不
連続部を設けた。The cross section of the auger rod is formed into a triangular shape formed by an outwardly convex curve to reduce local wear of the auger rod. Furthermore, by providing an earth pressure member along the ridgeline of the apex portion of the auger rod,
The wear of the auger rod body was prevented. Further, a discontinuous portion was provided by intermittently pressing the earth pressing member in the axial direction of the auger rod.
【０００６】[0006]
【作用】オーガロッドの先端に掘削ヘッドを取り付け、
地盤を掘進すると掘削土砂は掘削刃によって上昇させら
れ、オーガロッドの位置まで達し、オーガロッドの曲線
部と掘削孔の間の空間に入り、オーガロッドの回転によ
って三角形の頂点に位置する圧土部材によって孔壁に押
し付けられ、孔壁に塗りこめられる。[Action] Attach a drilling head to the tip of the auger rod,
When excavating the ground, the excavated soil is lifted by the excavation blade, reaches the position of the auger rod, enters the space between the curved part of the auger rod and the excavation hole, and the pressed earth member located at the top of the triangle by the rotation of the auger rod Is pressed against the hole wall and is applied to the hole wall.
【０００７】一度で塗りこめられなかった余剰の土砂
は、掘削孔とオーガロッドとの間の次の空間に入り、２
つ目の圧土部材で孔壁に押しつけられる。この動作を繰
り返すことにより、掘削土砂は殆どすべて孔壁に塗りこ
められ、地上に排土されるものがなくなる。[0007] Excess sediment not applied once enters the next space between the drill hole and the auger rod.
It is pressed against the hole wall by the second pressure member. By repeating this operation, almost all the excavated earth and sand is applied to the hole wall, and nothing is discharged to the ground.
【０００８】圧土部材を断続的にしてあるので、石など
が存在しても不連続部から逃がすことができる。アング
ル材をオーガロッドに溶接して圧土部材とすると、摩耗
が大きくなったり、石によって破損した場合は簡単に交
換することができる。[0008] Since the earth pressing member is intermittent, even if a stone or the like exists, it can escape from the discontinuous portion. If the angle material is welded to the auger rod to form the earth pressure member, if the wear increases or the stone is damaged, it can be easily replaced.
【０００９】掘削した孔壁とオーガロッドの間に空間が
形成されているので掘削孔の底部が大気と連通してお
り、オーガロッドを引き抜く際に先端部が真空状態にな
って、孔壁が崩壊することがない。Since a space is formed between the excavated hole wall and the auger rod, the bottom of the excavation hole is in communication with the atmosphere. Does not collapse.
【００１０】[0010]
【発明の実施の形態】本発明の実施の態様を図に基づい
て説明する。図１に示すように、鋼鉄製のオーガロッド
１は、断面が外側に凸な曲線２から構成される三角形で
ある。曲線の形状は、頂点を中心とし、頂点間の距離を
半径とする円弧である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the auger rod 1 made of steel has a triangular shape including a curve 2 whose cross section is outwardly convex. The shape of the curve is an arc with the vertices as the center and the distance between the vertices as the radius.
【００１１】三角形の頂点２１には、アングル材を溶接
した圧土部材２２がオーガロッド１の軸方向に設けてあ
る。オーガロッドの１の頂部には、駆動軸１１が形成さ
れ、連結用のピン孔１２が設けてあり、中心にはグラウ
ト注入やジェット噴射に使用するパイプ１３配設してあ
る。圧土部材２２を超硬材料とすると、長期間の使用に
耐えることができる。掘削ヘッド３は、図２に示すよう
にスクリュー３１を有し、先端部に先掘刃３２を設けて
ある。必要に応じて、モルタル、エアー、ジエット水等
のパイプ１３をオーガロッドの中心に形成し、掘削ヘッ
ド３先端に開孔した噴射口と連通させておく。At the apex 21 of the triangle, an earth pressing member 22 to which an angle material is welded is provided in the axial direction of the auger rod 1. A drive shaft 11 is formed at the top of one of the auger rods, and a pin hole 12 for connection is provided. A pipe 13 used for grout injection or jet injection is provided at the center. When the compacting member 22 is made of a super-hard material, it can withstand long-term use. The excavating head 3 has a screw 31 as shown in FIG. If necessary, a pipe 13 of mortar, air, jet water or the like is formed at the center of the auger rod, and communicates with the injection hole opened at the tip of the excavating head 3.
【００１２】掘孔深度によりオーガロッド１は連結して
延長させることが可能である。図３に示すように、曲線
を、三角形の頂点から延びる直線または緩やかな円弧と
曲率半径の小さな曲線からなる形状とすると、オーガロ
ッド１の回転に従って曲線と孔壁２５の間の空間２３が
徐々に小さくなり、掘削土砂を円滑に孔壁２５に塗りこ
むことができる。The auger rod 1 can be connected and extended depending on the depth of the excavation. As shown in FIG. 3, when the curve is formed of a straight line extending from the apex of a triangle or a gentle arc and a curve having a small radius of curvature, the space 23 between the curve and the hole wall 25 gradually increases as the auger rod 1 rotates. And the excavated earth and sand can be smoothly applied to the hole wall 25.
【００１３】また、図４に示すように圧土部材２２を断
続的に設け、掘削土砂の一部を次の空間に逃がすように
する。不連続部２４は互い違いに設け、不連続部２４が
同じ位置にこないようにする。掘削が完了したらオーガ
ロッドを引き抜くのであるが、オーガロッド１と孔壁２
５との間に空間２３が存在するので引き抜き時に大気が
スムースに掘削孔底部に流入していき、先端部が真空状
態になって孔壁２５が崩壊するようなことがない。Further, as shown in FIG. 4, a pressure earth member 22 is provided intermittently so that part of the excavated earth and sand is released to the next space. The discontinuous portions 24 are provided alternately so that the discontinuous portions 24 do not come to the same position. When the excavation is completed, the auger rod is pulled out.
Since the space 23 exists between the hole 5 and the hole 5, the air smoothly flows into the bottom of the excavation hole at the time of withdrawal, so that the distal end is not in a vacuum state and the hole wall 25 does not collapse.
【００１４】[0014]
【発明の効果】オーガロッドの断面が曲線三角形に形成
されているので、掘削土砂が曲面によって徐々に押圧さ
れ、頂点で完全に孔壁に塗りこめることができる。ま
た、稜線に圧土部材を設けたので、オーガロッド本体の
摩耗による損傷が解消された。さらに、圧土部材が摩耗
したら交換すればよいので、オーガロッドとしての寿命
が長くなり、コスト低減に効果がある。The cross section of the auger rod is formed as a curved triangle, so that the excavated earth and sand is gradually pressed by the curved surface, and can be completely applied to the hole wall at the apex. In addition, since the pressure earth member is provided on the ridge line, damage due to wear of the auger rod body is eliminated. In addition, since the pressure earth member may be replaced when worn, the life of the auger rod is prolonged, which is effective in cost reduction.
【図面の簡単な説明】[Brief description of the drawings]
【図１】オーガロッドの側面と断面を示す図FIG. 1 is a diagram showing a side surface and a cross section of an auger rod.
【図２】各種オーガヘッドの正面図FIG. 2 is a front view of various auger heads.
【図３】オーガロッドの他の実施例の断面図FIG. 3 is a cross-sectional view of another embodiment of the auger rod.
【図４】圧土部材が不連続なオーガロッドの正面図FIG. 4 is a front view of an auger rod having discontinuous earth members.
【符号の説明】 １…オーガロッド、２…曲線、２２…圧土部材、２４…
不連続部[Description of Signs] 1 ... Auger rod, 2 ... Curve, 22 ... Pressure member, 24 ...
Discontinuity
Claims (7)
オーガロッド。1. An auger rod having a triangular cross section comprising a curve that is outwardly convex.
の距離を半径とする円弧であるオーガロッド。2. The auger rod according to claim 1, wherein the curve is an arc having a radius between the vertices of the triangle.
って圧土部材を設けたオーガロッド。3. The auger rod according to claim 1, wherein an earth pressing member is provided along the ridge line.
アングル材であるオーガロッド4. The auger rod according to claim 1, wherein the earth pressing member is an angle material.
が断続しているオーガロッド。5. The auger rod according to claim 1, wherein the pressure member is intermittent.
線の圧土部材の欠落部に対応する位置に他の稜線の圧土
部材が設けてあるオーガロッド。6. The auger rod according to any one of claims 1 to 5, wherein an earth pressing member of another ridge line is provided at a position corresponding to a missing portion of the earth pressing member of one ridge line.
端に掘削ヘッドを取り付けた地盤掘孔装置。7. A ground excavation device in which a drilling head is attached to a tip of the auger rod according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18122598A JP3168264B2 (en) | 1998-06-26 | 1998-06-26 | No earth removal auger rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18122598A JP3168264B2 (en) | 1998-06-26 | 1998-06-26 | No earth removal auger rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000008757A true JP2000008757A (en) | 2000-01-11 |
| JP3168264B2 JP3168264B2 (en) | 2001-05-21 |
Family
ID=16097009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18122598A Expired - Fee Related JP3168264B2 (en) | 1998-06-26 | 1998-06-26 | No earth removal auger rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3168264B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017082402A (en) * | 2015-10-23 | 2017-05-18 | 地研テクノ株式会社 | Drilling and injection rod for pile construction, and pile construction method using the same |
| JP2019183513A (en) * | 2018-04-11 | 2019-10-24 | 征司 池永 | Non-earth-removal auger excavation tool |
-
1998
- 1998-06-26 JP JP18122598A patent/JP3168264B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017082402A (en) * | 2015-10-23 | 2017-05-18 | 地研テクノ株式会社 | Drilling and injection rod for pile construction, and pile construction method using the same |
| JP2019183513A (en) * | 2018-04-11 | 2019-10-24 | 征司 池永 | Non-earth-removal auger excavation tool |
| JP7128503B2 (en) | 2018-04-11 | 2022-08-31 | 株式会社コンクレタス | Earthless auger drilling tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3168264B2 (en) | 2001-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2645979B2 (en) | Drilled compacted auger screw | |
| JP2000008757A (en) | No-earth discharge auger, rod | |
| JP2008133599A (en) | Casing bit | |
| JP2582719B2 (en) | Piling method and casing pipe used in the method | |
| JP3428917B2 (en) | Auger screw and excavation method using it | |
| JP3472855B2 (en) | Drilling ring for casing tube | |
| JP4210297B2 (en) | Expanded pipe with tip blade and steel pipe pile with tip blade provided with the same | |
| JP2006022501A (en) | Ground reinforcing steel pipe | |
| JP2022064272A (en) | Multi-directional auger bit | |
| JPH09105289A (en) | Drilling blade for all casing construction method | |
| JP2896416B2 (en) | Excavated earth compacted auger | |
| JP2628295B2 (en) | Drilling rig tip connecting member | |
| JP2592165B2 (en) | Drilling blade for civil excavator | |
| JP3784373B2 (en) | Construction method of propulsion pipe and large section tunnel | |
| JPH0561410B2 (en) | ||
| JP2657631B2 (en) | Tip shape shoe of ready-made pile | |
| JP3679197B2 (en) | Screw for medium digging method | |
| JP4191451B2 (en) | Advanced components for rotary press-fit steel piles and steel piles | |
| JP2006009468A (en) | Driving method of inner excavation type steel pipe sheet pile and the steel pipe sheet pile used therefor | |
| KR100310501B1 (en) | Excavated soil compaction auger | |
| JP3019988B2 (en) | Auger for hard ground excavation | |
| JPH0419112Y2 (en) | ||
| JP3709060B2 (en) | Ground compaction device | |
| KR20050017047A (en) | A excavator which is boring a ground and the making method thereof | |
| JPS626074B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |