JPS60238516A - Inner drilling work of hollow pile - Google Patents
Inner drilling work of hollow pileInfo
- Publication number
- JPS60238516A JPS60238516A JP9261984A JP9261984A JPS60238516A JP S60238516 A JPS60238516 A JP S60238516A JP 9261984 A JP9261984 A JP 9261984A JP 9261984 A JP9261984 A JP 9261984A JP S60238516 A JPS60238516 A JP S60238516A
- Authority
- JP
- Japan
- Prior art keywords
- pile
- hollow
- hollow pile
- casing
- earth auger
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/28—Placing of hollow pipes or mould pipes by means arranged inside the piles or 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)
Abstract
Description
【発明の詳細な説明】
乙のを明は、例そばアースオーガとその周りの中空杭圧
入キャップを装備した杭打機に利用される中空杭の中掘
式埋込工法、詳しくは、前記杭打機による場合、中空杭
に貫通させたアースオーガで、中空杭埋込地盤を掘削し
て中空杭内を通じ排土しながら、前記中空杭をアースオ
ーガ周りの圧入キャンプ等によって掘削孔内に埋め込ん
でいく中空杭の中掘式埋込工法に関する。[Detailed Description of the Invention] The present invention describes, for example, a hollow pile embedding method used in a pile driver equipped with an earth auger and a hollow pile press-fit cap around it, and more specifically, When using a driving machine, excavate the ground in which the hollow pile is to be embedded using an earth auger that penetrates the hollow pile, and while removing soil through the hollow pile, embed the hollow pile in the excavated hole by press-fitting camp etc. around the earth auger. Concerning the hollow pile embedding method.
従来技術
この糧の工法は、打ち込み工法におけるような騒音を発
したり振動を生じることがなり、シかも掘削孔は掘削と
共に杭が埋め込まれて崩れることがないから、無公害で
しかも迅速かつ確実に施工できるし、中空杭にプレキャ
スト製のもの（以下中空ＰＣ杭と云う）を用いる等して
、安価に充分な強度をもって達成される。Conventional technology This construction method produces noise and vibrations like the driving method, but since the piles are embedded in the excavated hole and do not collapse, it is non-polluting, quick and reliable. It can be constructed at low cost and with sufficient strength by using precast hollow piles (hereinafter referred to as hollow PC piles).
施工は、例えば第４図に示きれるような杭打機（１）に
より簡単に行える。この杭打機（１）は、走行体（２）
の前部に、ガイド（３）付きのリーグ（４）がステーノ
リンダ（５）の伸縮により傾動可能に立設され、このリ
ーグ（４）に対し、アースオーガヘッド（６）が走行体
（２）に装備されたウィンチ（７）に巻取られているワ
イヤロープ（８）により昇降可能に吊架されている。ヘ
ッド（６）は、モータや減速機等のオーガ騒動部（９）
や中空杭圧入キャップ（１０）を装備しており、前記ガ
イド（３）の案内を受けてワイヤーロープ（８）の巻き
取り、繰り出しに伴い昇降される。Construction can be easily carried out using a pile driver (1) as shown in FIG. 4, for example. This pile driver (1) has a running body (2)
A league (4) with a guide (3) is installed at the front of the unit so that it can be tilted by expanding and contracting the steno cylinder (5). It is suspended so that it can be raised and lowered by a wire rope (8) wound around a winch (7) installed in the tower. The head (6) is the auger disturbance part (9) of the motor, reducer, etc.
It is equipped with a hollow pile press-fit cap (10), and is raised and lowered as the wire rope (8) is wound and let out under the guidance of the guide (3).
ヘッド（６）には、全長に亘ってスパイラルブレードを
持ったいわゆるスクリュアースオーガ（１１）が、埋め
込むべき中空ＰＣ杭（１２）およびそれに被冠きせる中
空杭圧入キャップ（ｌＯ）を貫通して連結される。圧入
キャンプ（１０）は、それが被冠された中空ＰＣ杭（１
２）内に連通ずる排土口（１４）が−側に開設され、ま
た、走行体（２）に装備された今１つのウィンチ（１５
）に巻取られているワイヤロープ（１６）が、リーグ（
４）下部のガイドシーブ（１７）を介して下方から複数
掛けされている。A so-called screw earth auger (11) having a spiral blade over its entire length is connected to the head (6) by penetrating the hollow PC pile (12) to be embedded and the hollow pile press-fit cap (lO) to be capped. be done. The press-in camp (10) is covered with a hollow PC pile (1
A soil discharge port (14) communicating with the interior of the vehicle (2) is opened on the - side, and a winch (15) installed on the traveling body (2) is opened on the - side.
) The wire rope (16) wound around the league (
4) Multiple guide sheaves (17) are hung from below through the lower guide sheave (17).
施工に当って、アースオーガ（１１）がそれを貫通させ
ている中空ＰＣ杭（１２）と共に埋込地盤（１８）の所
定位置上に立て置かれる。次いで、アースオーガ（１１
）は掘削方向に回転駆動され、先端に設けられている削
孔用拡翼ビット（１９）が、中空ＰＣ杭（１２）の下端
下に突出して、アースオーガ（１１）の前記回転で杭（
１２）の外径よりもやや大きく張り出すことにより、杭
（１２）外径よりもやや大きい杭埋込孔（２０）を掘削
していく。掘削した土は、アースオーガ（１１）の揚土
作用により杭（１２）内を通じて上方へ搬送され、圧入
キャップ（１３）を経てその排土口（１４）から排出さ
れる。一方、前記掘削の進行と同時に、ウィンチ（７）
はワイヤロープ（８）を繰り出させてアースオーガヘッ
ド（６）の掘削進行に伴う下降を許容し、ウィンチ（１
５）はワイヤロープ（１６）を巻取りながら圧入キャッ
プ（１３）を下降させて中空ＰＣ杭（１２）を掘削され
ていく杭埋込孔（２０）へ圧入されていき建て込まれる
。During construction, the earth auger (11) and the hollow PC pile (12) penetrating it are placed on a predetermined position of the buried ground (18). Next, Earth Auger (11
) is rotationally driven in the excavation direction, and the drilling wing expansion bit (19) provided at the tip protrudes below the lower end of the hollow PC pile (12), and the rotation of the earth auger (11) causes the pile (
12), a pile embedding hole (20) that is slightly larger than the outer diameter of the pile (12) is excavated by projecting it slightly larger than the outer diameter of the pile (12). The excavated soil is transported upward through the pile (12) by the lifting action of the earth auger (11), passes through the press-fit cap (13), and is discharged from the soil discharge port (14). Meanwhile, at the same time as the excavation progresses, the winch (7)
The wire rope (8) is let out to allow the earth auger head (6) to descend as the excavation progresses, and the winch (1)
5) is installed by lowering the press-fitting cap (13) while winding up the wire rope (16), and press-fitting the hollow PC pile (12) into the pile embedding hole (20) that is being excavated.
これによって、中空ＰＣ杭（１２）は、杭埋込孔（２０
）の掘削と同時に所定深さ才で難なく埋め込捷れる。As a result, the hollow PC pile (12) is inserted into the pile embedding hole (20
) can be buried without difficulty at a specified depth at the same time as excavation.
解決しようとする問題点
ところが、この中空杭の中掘式埋込工法の場合、中空杭
を通じて直接掘削、排土がなされるから、中空杭は、排
土やアースオーガ（１１）との接触で内面に傷が付き易
い。しかも、埋込地盤（１８）の土質によっては、転石
や大きな礫等があり、これらがピッ臼１９）によって破
砕され、比較的大きくとがりのある破砕塊片として排土
に混入し、中空杭内面をさらに損傷させ易い。中空Ｐｃ
杭（１２）では特に脆さがある上に真円度が悪い等のだ
め前記影響は大きく、強度低下の原因ともなりがねない
。万一、破砕塊片が排土途中に中空ＰＣ杭（１２）とア
ースオーガ（１１）の間、アースオーガ（１１）のスパ
イラルブレード間に穴い込むようなことがあると、アー
スオーガ（１１）の回転トルクによって、中空ＰＣ杭（
１２）の内部から亀裂が生じたり破損したシする場合も
あり、そのような杭（１２）は打ち直しが必要で労力と
時間を費す。Problems to be Solved However, in the case of this hollow pile embedding method, excavation and earth removal are performed directly through the hollow pile, so the hollow pile is not susceptible to soil removal or contact with the earth auger (11). The inner surface is easily damaged. Moreover, depending on the soil quality of the buried ground (18), there may be rolling stones or large gravel, etc., which are crushed by the pin mortar (19) and mixed into the waste soil as relatively large and sharp crushed pieces, and the inside surface of the hollow pile. can cause further damage. hollow PC
The piles (12) are particularly brittle and have poor roundness, so the aforementioned effects are significant and may cause a decrease in strength. In the unlikely event that the crushed pieces get stuck between the hollow PC pile (12) and the earth auger (11) or between the spiral blade of the earth auger (11) during soil removal, the earth auger (11) ), the hollow PC pile (
In some cases, the pile (12) cracks or breaks from the inside, and such a pile (12) requires re-driving, which takes time and effort.
この発明は、中空杭内に筒状ケーシングを嵌入し、この
ケーシング内で中掘を竹うξとによって、前記従来のよ
うな欠点を解消し、またケーシングケアースオーガとは
反対の方向に駆動して排土を促進し、より安全かつ迅速
に施工し得る中空杭の中掘式埋込工法を提供することを
目的とする。This invention solves the above-mentioned drawbacks of the conventional method by fitting a cylindrical casing into a hollow pile and digging a hollow inside the casing. The purpose of the present invention is to provide a hollow pile embedding method that facilitates soil removal and enables safer and faster construction.
問題解決手段および作用
そこでこの発明では、中空杭に貫通させたアースオーガ
で、中空杭埋込地盤を掘削して中空杭内を通じ排土しな
がら、前記中空杭を掘削孔内に埋め込んでいく中空杭の
中掘式埋込工法において、中空杭に筒状ケーシングを挿
入し、該ケーシング内を通じて前記アースオーガによる
中空杭埋込地盤の掘削、排土が行われる。Problem Solving Means and Effects Therefore, in the present invention, an earth auger penetrated through the hollow pile is used to excavate the ground in which the hollow pile is to be embedded, and while removing soil through the inside of the hollow pile, the hollow pile is embedded in an excavated hole. In the pile embedding method, a cylindrical casing is inserted into a hollow pile, and the earth auger excavates and removes soil through the inside of the casing.
中空杭は、筒状ケーシングによってアースオーガや排土
との接触や排土圧の作用から保護される。The hollow pile is protected by the cylindrical casing from contact with the earth auger and earth removal, and from the effects of earth removal pressure.
ケーシングは、耐久性および排土抵抗軽減上金属製とさ
れるのが望ましく、中空杭内周に対し少し隙間を有する
位いの外径とされるのがよい。The casing is preferably made of metal for durability and to reduce earth removal resistance, and preferably has an outer diameter that allows a slight clearance from the inner circumference of the hollow pile.
中空杭内に嵌入された筒状ケーシングは捷だ、必要に応
じてアースオルガとは反対の方向に回転駆動しながら前
記掘削、排土が行われる。The cylindrical casing fitted into the hollow pile is shattered, and if necessary, the excavation and soil removal are performed while being rotated in the opposite direction to the earth organ.
筒状ケーシングのアースオーガとの逆駆動は、両者間の
相対回転速度を増大し、その分排十を促進する。The counter-driving of the cylindrical casing with the earth auger increases the relative rotational speed between the two, thereby facilitating drainage.
実 施 例
第１図、第２図に基づき第１の実施例について説明する
。説明簡略化のだめ、第４図と同一のものには同一符号
を付し、その説明が省略される。Embodiment A first embodiment will be explained based on FIGS. 1 and 2. In order to simplify the explanation, the same parts as in FIG. 4 are given the same reference numerals, and the explanation thereof will be omitted.
アースオーガ（１］）が貫通する中空ＰＣ杭（１２）に
は、鋼管製のケーシング（３１）が嵌挿されている。ケ
ーシング（３１）は、中空ＰＣ杭（１２）の内径よりや
や小さい外径とされ、アースオーガ（１１）がスムーズ
に挿入、抜去され捷だ回転駆動され得る内径とされてい
る。ケーシング（３１）は上端に中空ＰＣ杭（１２）上
端に載架されるフランジ（３１，ａ）を治し、中空ＰＣ
杭（１２）に嵌挿した状態で一体的に取扱える。ケーシ
ング（３１）の下端外周には、中空ＰＣ杭（■２）内周
との間の７−ルパツキング（３２）が装着されており、
掘削、排土作業中にケーシング（３１）および中空ＰＣ
杭（１２）間に土砂等異物が侵入したり噛み込むのを防
止する。A steel pipe casing (31) is fitted into the hollow PC pile (12) through which the earth auger (1) passes. The casing (31) has an outer diameter that is slightly smaller than the inner diameter of the hollow PC pile (12), and has an inner diameter that allows the earth auger (11) to be smoothly inserted and removed and to be rotated. The casing (31) has a flange (31, a) mounted on the upper end of the hollow PC pile (12) at its upper end, and the hollow PC pile
It can be handled as an integral part when inserted into the pile (12). A 7-ru packing (32) is attached to the outer periphery of the lower end of the casing (31) between it and the inner periphery of the hollow PC pile (■2).
Casing (31) and hollow PC during excavation and soil removal work
To prevent foreign matter such as earth and sand from entering or getting caught between the piles (12).
中空ＰＣ杭（１２）に嵌挿したケーシング（３１）に対
してアースオーガ（１１）が貫通され、従来同様に埋込
地盤の所望位置に第１図、第２図の如く立て置いた状態
で、アースオーガ（１］）を回転駆動させ、ケーシング
（３１）を通じてアースオーガ（１１）による掘削およ
び排土が達成される。掘削の進行に伴い、中空ＰＣ杭（
１２）はケーシング（３１）と共に圧入キャップ（１０
）により掘削されていく杭埋込孔（２０）へ圧入され建
て込捷れる。建て込み児了時、アースオーガ（１１）は
逆転駆動きれケーシング（３１）から引き抜かれる。こ
の際アースオーガ（１１）先端の拡翼ビット（１９）は
アースオーガ（ｌ ］、 ）の逆転によって格納状態に
引っ込められ、前記アースオー力（ｌｌ）の引き抜きを
可能にする。アースオーガ（］］］の引き抜き後、ケー
シング（３１）が中空ＰＣ杭（１２）から引き抜かれる
。ケーシング（３１）の引き抜き後、中２ＰＣ杭（１２
）内へセメント溶液を所定量注入して支持層に固定化し
、埋込みを完了する。ケーシング（３１）の引き抜きは
、その上端フランジ（３１ａ）の引っ掛かりを利用して
容易になされる。場合によってはアースオー力（１１）
の引き抜きと同時にもなされる。The earth auger (11) is passed through the casing (31) fitted into the hollow PC pile (12), and placed upright at the desired position in the buried ground as shown in Figures 1 and 2, as in the conventional case. , the earth auger (1]) is driven to rotate, and excavation and earth removal by the earth auger (11) is achieved through the casing (31). As the excavation progresses, hollow PC piles (
12) is a press-fit cap (10) together with the casing (31).
) is press-fitted into the pile embedding hole (20) which is being excavated, and the pile is erected. When the construction is completed, the earth auger (11) is pulled out from the reverse drive casing (31). At this time, the expansion bit (19) at the tip of the earth auger (11) is retracted into the retracted state by reversing the earth auger (l], ), making it possible to extract the earth auger force (ll). After pulling out the earth auger (]]], the casing (31) is pulled out from the hollow PC pile (12). After pulling out the casing (31), the middle 2 PC pile (12) is pulled out.
) A predetermined amount of cement solution is injected into the support layer and fixed to the support layer, completing the embedding. The casing (31) can be easily pulled out using the catch of the upper end flange (31a). In some cases, earth power (11)
It is also done at the same time as the extraction of the.
圧入キャップ（１０）は油圧シリンダーによって作動さ
れる場合もあり、種々の杭打機や装置を利用して前記工
法を達成し得る。The press-fit cap (10) may be actuated by a hydraulic cylinder, and various pile drivers and equipment may be utilized to accomplish the method.
第３図に示される実施例では、周知の図示しない内外２
重駆動式のアースオーガヘッドが、第４図、第１図のア
ースオーガヘッド（６）に代えて用いられ、内部動部に
アースオーガ（１１）が、まだ外部動部に中空ＰＣ杭（
１２）に嵌挿されたケーシング（３１）がその上端フラ
ンジ（３１ａ）部で接続（４１） した上部ケーシング
（４２）を介して、それぞれ連結される。圧入キャップ
（１３）は中空ＰＣ杭（１２）の上端に第１図の場合同
様直接被冠される。In the embodiment shown in FIG.
A heavily driven earth auger head is used in place of the earth auger head (6) in Figures 4 and 1, with an earth auger (11) in the internal moving part and a hollow PC pile (11) still in the external moving part.
The casings (31) fitted into the casings (12) and casings (31) are connected to each other via an upper casing (42) connected (41) at its upper end flange (31a). The press-fit cap (13) is directly capped on the upper end of the hollow PC pile (12) as in the case of FIG.
この状態で、アースオーガ（１１）’を掘削方向に回転
駆動させながら、ケーシング（３１）をアースオーガ（
１１）とは反対の方向に回転駆動して、ケーシング（３
１）を通じたアースオーガ（１１）による掘削排土が行
われる。In this state, while rotating the earth auger (11)' in the excavation direction, move the casing (31) into the earth auger (
The casing (3) is rotated in the opposite direction to the casing (3).
1) Excavation and removal of earth is performed by an earth auger (11).
アースオーガ（］］）の回転により上方へ揚げられる掘
削土は、ケーシング（３１）内に入ると同時に、アース
オーガ（Ｊｌ）の通常回転分に、ケーシング（８１）の
逆転分が加わった相対回転速度分の揚土作用を受け、排
土速度を速められる。これによって、ケーシング（３１
）内での排土密度が緩和され、詰り等なく円滑かつ迅速
に排土される。The excavated soil that is lifted upward by the rotation of the earth auger (]]) enters the casing (31) and at the same time undergoes a relative rotation consisting of the normal rotation of the earth auger (Jl) and the reverse rotation of the casing (81). The soil removal speed can be increased by receiving the soil lifting action equal to the speed. This allows the casing (31
), the density of soil discharged within the space is reduced, and the soil is discharged smoothly and quickly without clogging.
もつとも、上部ケーシング（４２）はアースオーガヘッ
ド（６）との連結部か連結部近くに、圧入キャップ（１
０）の排土口に連通ずる排土連通窓が設けられなければ
ならない。However, the upper casing (42) has a press-fit cap (1) at or near the connection with the earth auger head (6).
A soil discharge communication window must be provided that communicates with the soil discharge port of 0).
効 果
この発明によれば、中空杭に嵌挿された筒状ケーシング
内を通じて、中空杭埋込みのだめのアースオー力による
掘削、排土が行われるので、中空杭がアースオー力や排
土、排土圧から保獲され、脆さがあり真円度が悪いこと
の多い中空ＰＣ杭であっても、捷だ埋込み地盤の地層に
転石や大きな礫等があり大きくとがった破砕壊片となっ
て排土に混入する場合でも、杭を損傷させたり、亀裂や
破損を生じさせることなく埋込むことができ、強度低下
の不安や施工のやり直しと云ったことが解消される。Effects According to the present invention, excavation and soil removal using the earth-o-force of the hollow pile embedding reservoir are performed through the cylindrical casing fitted into the hollow pile, so that the hollow pile is free from the earth-o-force, earth removal, and soil removal pressure. Even with hollow PC piles, which are brittle and often have poor roundness, they may be broken into large, sharp fragments due to boulders, large gravel, etc. in the ground layer where they are buried. Even if the pile is mixed in, it can be embedded without damaging the pile or causing cracks or breakage, eliminating concerns about strength loss and the need to redo the construction.
捷た、筒状ケーシングは、アースオーガと反対方向に回
転駆動されることによって、ア−スオ−力との相対回転
速度を上げ、アースオーニガの実際回転速変分以上に揚
上作用を発揮させ、ケーシング内での排土密度を軽減し
て詰り等なく円滑かつ迅速に排土きせることかできる。The twisted cylindrical casing is driven to rotate in the opposite direction to the earth auger, thereby increasing the relative rotational speed with the earth auger and exerting a lifting action greater than the actual rotational speed variation of the earth auger. It is possible to reduce the density of soil discharged within the casing and to discharge soil smoothly and quickly without clogging.
４・、 図面の簡単な説明
第１図はこの発明の第１の実施例の施工状態を示す側面
図、第２図は要部の拡大断面図、第３図は第２の実施例
の施工状態を示す要部の拡大断面図、第４図は従来工法
の施工状態を示す側面図である。4., Brief description of the drawings Figure 1 is a side view showing the construction state of the first embodiment of this invention, Figure 2 is an enlarged sectional view of the main parts, and Figure 3 is the construction of the second embodiment. FIG. 4 is an enlarged cross-sectional view of the main parts showing the state, and FIG. 4 is a side view showing the state of construction using the conventional construction method.
（６）・・アースオーガヘッド、（１０）・・中空杭圧
入キャンプ、（１１）・・・アースオーカ、（１２）・
・中空ＰＣ杭、（１４）・・排土口、（８）、 （１，
６１・・・ワイヤロープ、（７） 、 （１５１・・ウ
ィンチ、（１９）・・・削孔用拡翼ビット、（２０）・
・・杭埋込孔、（３１）・・・ケーシング(6)...Earth auger head, (10)...Hollow pile press-fit camp, (11)...Earth auger head, (12)...
・Hollow PC pile, (14)...Earth removal port, (8), (1,
61...Wire rope, (7), (151...Winch, (19)...Drilling wing expansion bit, (20)...
... Pile embedding hole, (31) ... Casing
Claims (1)
込地盤を掘削して中空杭内を通じ排土しながら、前記中
空杭を掘削孔内に埋め込んでいく中空杭の中掘式埋込工
法において、 中空杭に筒状ケーシングを嵌挿し、該ケージフグ内を通
じて前記アースオーガによる中空杭埋込地盤の掘削、排
土を行う ことを特徴とする中空杭の中掘式埋込工法（２）筒状ケ
ーシングは、中空杭内周との間にやや間隙を有する外径
のものが用いられる特許請求の範囲竺１苗印麹ハ出売什
小出税＋坤−１丁）−１−（３）中空杭に貫通させたア
ースオーガで、中空杭埋込地盤を掘削して中空杭内を通
じ排土しながら、前記中空杭を掘削孔内に埋め込んで行
く中空杭の中掘式埋込工法において、 中空杭に筒状ケーシングを挿入し、該ケーシング内を通
じて前記アースオーガによる中空杭埋込地盤の掘削、排
土を、ケーシングをアースオーガの回転とは逆向きに回
転源せながら行うことを特徴とする中空杭の中掘式埋込
工法（４） 筒状ケーシングは、中空杭内周との間にや
や間隙を有する外径のものが用いられる特許請求の範囲
第３項記載の中空杭の中掘式埋込工法(1) Hollow pile embedding method in which the hollow pile is buried in the excavated hole by excavating the ground where the hollow pile is to be embedded using an earth auger penetrated through the hollow pile and removing the earth through the hollow pile. Hollow pile embedding method (2), which is characterized in that a cylindrical casing is inserted into the hollow pile, and the earth auger excavates and removes the earth through the cage pipe. The cylindrical casing has an outer diameter with a slight gap between it and the inner periphery of the hollow pile. 3) Hollow pile embedding method in which the ground where the hollow pile is to be embedded is excavated using an earth auger that penetrates the hollow pile, and the earth is removed through the hollow pile while the hollow pile is embedded in the excavated hole. A cylindrical casing is inserted into the hollow pile, and the earth auger excavates and removes soil through the casing into the ground where the hollow pile is embedded, while the casing is rotated in the opposite direction to the rotation of the earth auger. Features: Hollow pile embedding method (4) The hollow pile according to claim 3, wherein the cylindrical casing has an outer diameter with a slight gap between it and the inner circumference of the hollow pile. Underground embedding method
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9261984A JPS60238516A (en) | 1984-05-08 | 1984-05-08 | Inner drilling work of hollow pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9261984A JPS60238516A (en) | 1984-05-08 | 1984-05-08 | Inner drilling work of hollow pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60238516A true JPS60238516A (en) | 1985-11-27 |
Family
ID=14059446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9261984A Pending JPS60238516A (en) | 1984-05-08 | 1984-05-08 | Inner drilling work of hollow pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60238516A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2704575A1 (en) * | 1993-04-28 | 1994-11-04 | Spie Fondations | Method for anchoring a post in the ground, device for the implementation of this method, and post anchor mass realized for the implementation of this method and / or this device. |
| US7775300B2 (en) | 2007-04-05 | 2010-08-17 | Bauer Maschinen Gmbh | Earth drilling device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5817920A (en) * | 1981-07-24 | 1983-02-02 | Nobuo Nakamura | Method of silent and vibrationless driving of pile and its device |
| JPS5862217A (en) * | 1981-10-07 | 1983-04-13 | 前田製管株式会社 | Pile construction work |
-
1984
- 1984-05-08 JP JP9261984A patent/JPS60238516A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5817920A (en) * | 1981-07-24 | 1983-02-02 | Nobuo Nakamura | Method of silent and vibrationless driving of pile and its device |
| JPS5862217A (en) * | 1981-10-07 | 1983-04-13 | 前田製管株式会社 | Pile construction work |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2704575A1 (en) * | 1993-04-28 | 1994-11-04 | Spie Fondations | Method for anchoring a post in the ground, device for the implementation of this method, and post anchor mass realized for the implementation of this method and / or this device. |
| US5516237A (en) * | 1993-04-28 | 1996-05-14 | Spie Fondations | Process to anchor a post or a string of posts in the ground, and anchoring pier of a post or a string of posts produced by the practice of this process |
| US7775300B2 (en) | 2007-04-05 | 2010-08-17 | Bauer Maschinen Gmbh | Earth drilling device |
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