JPH089225Y2 - Pile making machine - Google Patents
Pile making machineInfo
- Publication number
- JPH089225Y2 JPH089225Y2 JP1989040705U JP4070589U JPH089225Y2 JP H089225 Y2 JPH089225 Y2 JP H089225Y2 JP 1989040705 U JP1989040705 U JP 1989040705U JP 4070589 U JP4070589 U JP 4070589U JP H089225 Y2 JPH089225 Y2 JP H089225Y2
- Authority
- JP
- Japan
- Prior art keywords
- casing
- pile
- bit
- forming machine
- piles
- 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
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Piles And Underground Anchors (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Earth Drilling (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、掘削土砂とセメントミルク等の固結材とを
混ぜ合わせてなる、いわゆるソイルコンクリートで杭を
造成する杭造成機に関する。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a pile forming machine for forming a pile with so-called soil concrete, which is a mixture of excavated soil and a solidifying material such as cement milk.
〔従来の技術〕 第5図に示すように杭造成機として、先端に掘削ヘッ
ド1を設けた中空回転軸(図示の場合はスクリュー軸)
2よりなるオーガーと、ケーシング3とを組合わせるも
のがある。この場合、ケーシング3は先端に掘削刃4を
設けてもよく、中空回転軸2は水平バー状の攪拌羽根を
適宜間隔で突設したものでもよい。また、掘削ヘッド1
の形状も図示のごとくスクリュー状のほかに、水平アー
ム状のものに掘削刃を並列させて設けたものなど種々で
ある。[Prior Art] As a pile forming machine as shown in FIG. 5, a hollow rotary shaft (a screw shaft in the case shown) provided with an excavation head 1 at its tip.
There is a combination of an auger composed of 2 and a casing 3. In this case, the casing 3 may be provided with the digging blade 4 at the tip thereof, and the hollow rotary shaft 2 may be one in which horizontal bar-shaped stirring blades are projected at appropriate intervals. Also, the drilling head 1
In addition to the screw shape as shown in the figure, there are various shapes such as a horizontal arm shape and an excavating blade arranged in parallel.
第4図に示すように、これらオーガーやケーシング3
はベースマシン5のリーダーマスト6に昇降自在に吊下
げられたモーター、減速機からなる駆動装置7に連結さ
れ、該駆動装置7でオーガーの中空回転軸2とケーシン
グ3は相互に逆方向に回転駆動される。As shown in FIG. 4, these augers and casings 3
Is connected to a drive device 7 composed of a motor and a speed reducer suspended on a leader mast 6 of a base machine 5, and the drive device 7 causes the hollow rotary shaft 2 and casing 3 of the auger to rotate in mutually opposite directions. Driven.
また、中空回転軸2の上端にはスイベル装置を介して
セメントミルク等の固結材の配送ホース9を連結し、中
空回転軸2の先端はこの固結材の注出口8として形成し
た。Further, a delivery hose 9 of a solidifying material such as cement milk is connected to the upper end of the hollow rotating shaft 2 via a swivel device, and the tip of the hollow rotating shaft 2 is formed as a spout 8 for the solidifying material.
該中空回転軸2の注出口8よりセメントミルク等の固
結材を注出し、掘削ヘッド1での掘削土砂と固結材とを
中空回転軸2の途中の羽根で攪拌すれば、いわゆるソイ
ルコンクリートの杭が形成できる。If a solidifying material such as cement milk is poured out from the spout 8 of the hollow rotating shaft 2 and the excavated earth and sand in the drilling head 1 and the solidifying material are agitated by a blade in the middle of the hollow rotating shaft 2, so-called soil concrete is obtained. The pile of can be formed.
ところで、このような杭造成機で、ソイルコンクリー
トの柱列杭で地中連続止水壁を造成する場合、第6図に
示すように、杭同士をラップさせて止水性を確保する
が、その工法の中で、一つ置きに杭を施工し、このソイ
ルコンクリートが固まらない内に間の杭を施工する工法
がある。図示の番号は、打設順を示す。By the way, in the case of constructing an underground continuous waterproofing wall with pillar columns made of soil concrete with such a pile building machine, as shown in FIG. Among the construction methods, there is a construction method in which every other pile is constructed and a pile between the piles is constructed before the soil concrete solidifies. The numbers shown indicate the order of placement.
前記第6図に示すような順番で、ソイルコンクリート
の柱列杭を施工するのに、ケーシング3が鉛直に精度よ
く建込まれれば問題はないが、曲がりを生じると、地表
部分では第6図に示すように杭同士が十分ラップしてい
ても、深いところではこのラップが得られず、地中連続
止水壁としては不完全なものであることがある。In order to construct pillar columns made of soil concrete in the order as shown in FIG. 6, there is no problem if the casing 3 is vertically installed with high accuracy, but if a bend occurs, the surface portion of FIG. As shown in, even if the piles are sufficiently wrapped with each other, this wrap is not obtained at a deep place, and it may be incomplete as an underground continuous water stop wall.
しかも、このような状態は地中深くであるから、発見
することはきわめて困難であった。Moreover, it was extremely difficult to find such a condition because it was deep in the ground.
本考案の目的は前記従来例の不都合を解消し、多少ケ
ーシングの建込みに曲がりを生じても、杭同士を確実に
ラップさせて止水性を確保できる杭造成機を提供するこ
とにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned disadvantages of the conventional example, and to provide a pile forming machine capable of surely wrapping the piles to secure water shutoff even if the casing is slightly bent.
本考案は前記目的を達成するため、セメントミルク等
の固結材を先端から注出可能な中空回転軸を有するオー
ガーとこのオーガーの回転と逆方向に回転するケーシン
グとを組合わせる杭造成機において、ケーシングの周方
向に突条としてリブ状にストッパーを形成し、このスト
ッパー間にケーシング外周に周方向に回転可能な輪体を
嵌め、この輪体からケーシング軸方向と直交する方向に
軸を突設し、該軸にビットを回転可能に嵌合したことを
要旨とするものである。In order to achieve the above-mentioned object, the present invention relates to a pile forming machine that combines an auger having a hollow rotating shaft capable of pouring a solidifying material such as cement milk from the tip and a casing rotating in a direction opposite to the rotation of the auger. A rib-shaped stopper is formed as a ridge in the circumferential direction of the casing, and a ring body that is rotatable in the circumferential direction is fitted on the outer circumference of the casing between the stoppers, and the shaft is projected from the ring body in a direction orthogonal to the axial direction of the casing. The gist is that a bit is rotatably fitted on the shaft.
本考案によれば、一つ置きに杭を施工し、このソイル
コンクリートが固まらないうちに間の杭を施工する場合
において、アーム状のビットは既設杭として先に打設さ
れたソイルコンクリートが固まらない杭内に位置させて
掘削を行う。According to the present invention, when every other pile is constructed and the piles are constructed before the soil concrete is solidified, the arm-shaped bit is the existing pile and the soil concrete previously piled up is solidified. Do excavation by placing it in a pile that is not there.
そして、ケーシングが正しく建込まれている間は、該
アーム状のビットは未硬化のソイルコンクリートの中を
通過するだけであるが、このケーシングが曲がり、ケー
シング本体のみではラップが取れなくなると、アーム状
のビットも未硬化のソイルコンクリートから一部外れ、
この外れた部分で地盤の掘削を行うので、新たにケーシ
ングで掘削する範囲はアーム状のビットの掘削分だけ広
がり、常に先の杭とのラックが確保できる。Then, while the casing is properly installed, the arm-shaped bit only passes through the uncured soil concrete, but when this casing bends and the wrap cannot be removed only by the casing body, the arm can be removed. -Shaped bits also partly come off the uncured soil concrete,
Since the ground is excavated in this deviated portion, the range in which the casing is newly excavated is expanded by the excavation of the arm-shaped bit, and the rack with the previous pile can always be secured.
また、地中に建物基礎などの残部などの障害物があ
り、これにアーム状のビットがぶつかる場合でも、該ビ
ットが軸を介して回転することで障害物と擦れ合い、そ
の摩擦で輪体もケーシング周方向に回転し、ビットの位
置も大きく移動して障害物から外れる。Also, even if there are obstacles such as the rest of the building foundation in the ground, and the arm-shaped bit hits it, the bit rotates against the obstacle and rubs against the obstacle. Also rotates in the circumferential direction of the casing, and the position of the bit also largely moves and disengages from the obstacle.
以下、図面について本考案の実施例を詳細に説明す
る。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第1図は本考案の杭造成機の要部の斜視図で、図中3
はケーシング、10はケーシング3の先端の掘削刃であ
る。FIG. 1 is a perspective view of a main part of the pile forming machine of the present invention, in which 3
Is a casing, and 10 is an excavating blade at the tip of the casing 3.
かかるケーシング3を含む杭造成機の全体は、第4
図、第5図で示した従来の杭造成機と同一でよく、セメ
ントミルク等の固結材を先端から注出可能な中空回転軸
2を有するオーガーとこのオーガーの回転と逆方向に回
転するケーシング3とを組合わせるものである。The entire pile forming machine including the casing 3 has a fourth
It may be the same as the conventional pile forming machine shown in FIGS. 5 and 5, and has an auger having a hollow rotary shaft 2 capable of pouring out a solidifying material such as cement milk from its tip, and rotates in a direction opposite to the rotation of this auger. It is combined with the casing 3.
本考案は、このような杭造成機のケーシング3の外周
に周方向に回転可能なバンド状の輪体11を嵌める。According to the present invention, a band-shaped ring body 11 rotatable in the circumferential direction is fitted around the casing 3 of such a pile forming machine.
図中15は、ケーシング3の周方向に突条としてリブ状
に形成したストッパーで、このストッパー15間に輪体11
を収めることで輪体11の上下動を阻止する。Reference numeral 15 in the figure denotes a stopper formed in a rib shape as a ridge in the circumferential direction of the casing 3, and the ring member 11 is provided between the stoppers 15.
The vertical movement of the ring 11 is prevented by storing
前記輪体11の外周でケーシング3の軸方向と直交する
方向に軸12aを突設し、該軸12aにビット12を回転可能に
嵌合する。A shaft 12a is provided on the outer circumference of the wheel body 11 in a direction orthogonal to the axial direction of the casing 3, and the bit 12 is rotatably fitted to the shaft 12a.
なお、ビット12の形状は回転し易いものであればよ
く、形状はある程度頑強なものであれば四角柱、三角柱
など形状の如何を問わない。また、輪体11を遊嵌するケ
ーシング3の場所は、リーダーマスト6にあるケーシン
グホルダー13から下で、先端の掘削刃10より上とする。The bit 12 may have any shape as long as it can be easily rotated, and may have any shape such as a square pole or a triangular pole as long as the shape is robust to some extent. The location of the casing 3 in which the ring 11 is loosely fitted is below the casing holder 13 in the leader mast 6 and above the tip cutting blade 10.
次に、使用法について説明すると、第3図に示すよう
にすでに掘削施工した一つ置きのソイルコンクリート杭
A,Bの間に、これら杭A,Bのソイルコンクリートが未硬化
の内に、杭Cをラップして打設する。Next, the usage will be explained. As shown in Fig. 3, every other soil concrete pile already excavated.
Between the A and B, the pile C is lapped and placed while the soil concrete of the piles A and B is uncured.
この場合、アーム状のビット12はソイルコンクリート
杭A,B内に置く。In this case, the arm-shaped bit 12 is placed in the soil concrete piles A and B.
ケーシング3が回転駆動されると、輪体11もつられて
同じ方向に回転し、ビット12は杭A,Bの孔壁に当たり止
まる。そして、ケーシング3が正しく鉛直に建込まれて
いれば、ビット12は杭A,Bの未硬化のソイルコンクリー
ト内を降下するだけである。When the casing 3 is rotationally driven, the wheel 11 is entangled and rotates in the same direction, and the bit 12 hits the hole walls of the piles A and B and stops. Then, if the casing 3 is correctly installed vertically, the bit 12 simply descends in the uncured soil concrete of the piles A and B.
一方、ケーシング3の建込みが曲がり、杭A,Bとのラ
ップの面積が少なくなると、ビット12が杭A,Bの外方へ
出て、この部分で地盤を掘削するので、ビット12の先端
が杭A,B内から出ない限りラップは確保され、この部分
にソイルコンクリートが入り込んで、隙間のない柱列杭
による地中連続止水壁が造られる。On the other hand, when the construction of the casing 3 is bent and the area of the wrap with the piles A and B is reduced, the bit 12 comes out of the piles A and B and excavates the ground at this portion. A wrap is secured as long as it does not go out from inside the piles A and B, and soil concrete enters into this part to create a continuous underground water stop wall with pillar columns without gaps.
地中には杭やフーチング基礎等コンクリート構造物
が、残っていることが多い。これらの残存物14はケーシ
ング3の掘削刃10で切断し、また掘削ヘッド1の掘削刃
4で粉砕できる。しかし、杭A,Bの外の残存物14は残っ
ており、この下などにビット12が入り込むと残存物14が
障害となりケーシング3の引き抜きに支障をきたすこと
がある。Concrete structures such as piles and footing foundations often remain in the ground. These remnants 14 can be cut with the drilling blade 10 of the casing 3 and crushed with the drilling blade 4 of the drilling head 1. However, the remnants 14 remaining outside the piles A and B remain, and if the bit 12 gets under these, the remnants 14 may become an obstacle and may hinder the extraction of the casing 3.
前記ビット12は軸12aを介して回転可能なものである
から、このビット12が残存物14に当たると擦れて回転
し、その結果輪体11を回転させることになる。この輪体
11の回転方向によっては、ビット12は杭A,B内に戻り、
残存物14を外れる。Since the bit 12 is rotatable via the shaft 12a, when the bit 12 hits the residue 14, the bit 12 is rubbed and rotated, and as a result, the wheel body 11 is rotated. This ring
Depending on the direction of rotation of 11, the bit 12 returns to the pile A, B,
Remove Remains 14.
第2実施例として第2図に示すようにビット12はギヤ
状のものとしてもよい。As a second embodiment, the bit 12 may be gear-shaped as shown in FIG.
以上述べたように本考案の杭造成機は、ソイルコンク
リートの柱列杭で地中連続止水壁を造成する場合、多少
ケーシングの建込みに曲がりを生じても、杭同士を確実
にラップさせて止水性を確保できるものである。As described above, the pile forming machine of the present invention ensures that the piles are securely wrapped even if the casing is slightly bent when constructing the continuous underground water stop wall with pillar columns made of soil concrete. It is possible to secure the waterproofness.
第1図は本考案の杭造成機の第1実施例を示す要部の斜
視図、第2図は同上第2実施例を示す部分斜視図、第3
図は動作説明図、第4図は杭造成機の全体の斜視図、第
5図は従来例を示す縦断正面図、第6図は柱列杭の打設
手順を示す説明図である。 1……掘削ヘッド、2……中空回転軸 3……ケーシング、4……掘削刃 5……ベースマシン、6……リーダーマスト 7……駆動装置、8……注出口 9……固結材の配送ホース、10……掘削刃 11……輪体、12……ビット 12a……軸、13……ケーシングホルダー 14……残存物、15……ストッパーFIG. 1 is a perspective view of an essential portion showing a first embodiment of a pile forming machine of the present invention, FIG. 2 is a partial perspective view showing a second embodiment of the same, and FIG.
FIG. 4 is an operation explanatory view, FIG. 4 is a perspective view of the entire pile forming machine, FIG. 5 is a vertical sectional front view showing a conventional example, and FIG. 6 is an explanatory view showing a pillar row pile placing procedure. 1 ... Drilling head, 2 ... Hollow rotary shaft, 3 ... Casing, 4 ... Drilling blade, 5 ... Base machine, 6 ... Leader mast, 7 ... Driving device, 8 ... Spout, 9 ... Curing material Delivery hose, 10 …… Drilling blade 11 …… Wheel, 12 …… Bit 12a …… Shaft, 13 …… Casing holder 14 …… Remaining material, 15 …… Stopper
Claims (1)
可能な中空回転軸を有するオーガーとこのオーガーの回
転と逆方向に回転するケーシングとを組合わせる杭造成
機において、ケーシングの周方向に突条としてリブ状に
ストッパーを形成し、このストッパー間にケーシング外
周に周方向に回転可能な輪体を嵌め、この輪体からケー
シング軸方向と直交する方向に軸を突設し、該軸にビッ
トを回転可能に嵌合したことを特徴とする杭造成機。1. A pile forming machine which combines an auger having a hollow rotary shaft capable of pouring out a solidifying material such as cement milk from its tip and a casing rotating in a direction opposite to the rotation of the auger, in a circumferential direction of the casing. A rib-shaped stopper is formed on the casing as a ridge, and a ring body that is rotatable in the circumferential direction is fitted on the outer periphery of the casing between the stoppers, and a shaft is projected from the ring body in a direction orthogonal to the axial direction of the casing. A pile forming machine characterized in that a bit is rotatably fitted on the pile.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989040705U JPH089225Y2 (en) | 1989-04-06 | 1989-04-06 | Pile making machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989040705U JPH089225Y2 (en) | 1989-04-06 | 1989-04-06 | Pile making machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02132734U JPH02132734U (en) | 1990-11-05 |
JPH089225Y2 true JPH089225Y2 (en) | 1996-03-13 |
Family
ID=31550723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1989040705U Expired - Lifetime JPH089225Y2 (en) | 1989-04-06 | 1989-04-06 | Pile making machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH089225Y2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6460712B2 (en) * | 2014-10-10 | 2019-01-30 | 株式会社竹中工務店 | Construction method of underground continuous wall |
JP6507390B2 (en) * | 2015-03-03 | 2019-05-08 | 株式会社テノックス | Hydraulic solidifying material liquid displacement column construction device and hydraulic solidifying material liquid displacement column construction method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57112514A (en) * | 1981-08-13 | 1982-07-13 | Giken Koei:Kk | Instrument for improving soft ground |
JPS639334B2 (en) * | 1979-12-14 | 1988-02-27 | Siemens Ag |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS639334U (en) * | 1986-07-01 | 1988-01-21 |
-
1989
- 1989-04-06 JP JP1989040705U patent/JPH089225Y2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS639334B2 (en) * | 1979-12-14 | 1988-02-27 | Siemens Ag | |
JPS57112514A (en) * | 1981-08-13 | 1982-07-13 | Giken Koei:Kk | Instrument for improving soft ground |
Also Published As
Publication number | Publication date |
---|---|
JPH02132734U (en) | 1990-11-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |