JPH0758027B2 - Pile hole drilling rod - Google Patents
Pile hole drilling rodInfo
- Publication number
- JPH0758027B2 JPH0758027B2 JP19069691A JP19069691A JPH0758027B2 JP H0758027 B2 JPH0758027 B2 JP H0758027B2 JP 19069691 A JP19069691 A JP 19069691A JP 19069691 A JP19069691 A JP 19069691A JP H0758027 B2 JPH0758027 B2 JP H0758027B2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- spiral
- pile hole
- mesh
- net
- 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 - Fee Related
Links
Landscapes
- Earth Drilling (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、杭掘削用の駆動軸に
連結し、先端に掘削刃を有する杭穴掘削用のロッドに関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rod for excavating a pile hole, which rod is connected to a drive shaft for excavating a pile and has an excavating blade at its tip.
【０００２】[0002]
【従来の技術】従来、掘削土を上部に上げるため、杭穴
掘削用のロッドに螺旋状の羽根を取り付け、あるいは、
掘削土を撹拌するために放射状に突起を取り付けてい
た。2. Description of the Related Art Conventionally, in order to raise excavated soil to the upper part, a spiral blade is attached to a rod for excavating a pile hole, or
Radial projections were attached to stir the excavated soil.
【０００３】[0003]
【発明が解決しようとする課題】前記従来の螺旋羽根で
は、大径の土の塊を上部に上げる為、ロッドと杭穴壁に
掘削土が詰まり、バキューム現象を起こし、ロッドが回
転困難となるおそれを生じる問題点があった。また、前
記突起では大径の土の塊を移送あるいは浮遊に都合の良
い大きさまで細かく粉砕できなかった。In the conventional spiral blade described above, since a large-diameter lump of soil is raised upward, the rod and pile hole walls are clogged with excavated soil, causing a vacuum phenomenon, which makes the rod difficult to rotate. There was a problem that caused fear. In addition, the protrusions could not finely grind a large-sized soil lump to a size convenient for transportation or floating.
【０００４】[0004]
【課題を解決するための手段】然るにこの発明は、ロッ
ド本体に螺旋網を取り付け、あるいは網板を取り付けた
ので、前記問題点を解決した。However, in the present invention, the above-mentioned problems are solved because the spiral net or the net plate is attached to the rod body.
【０００５】即ちこの発明は、下端部の掘削羽根を有す
るロッド本体の外側の前記掘削羽根の上方に螺旋網を取
り付けたことを特徴とする杭穴掘削用ロッドである。ま
た、螺旋網は下部を細目とし、上部を粗目とした杭穴掘
削用ロッドである。That is, the present invention is a rod for excavating a pile hole, characterized in that a spiral net is attached above the excavation blade outside the rod body having the excavation blade at the lower end. In addition, the spiral net is a rod for excavating a pile hole, the lower part of which is fine and the upper part of which is coarse.
【０００６】また、ロッド本体の中間部外側に、網板を
等間隔で放射状に突設したことを特徴とした杭穴掘削用
ロッドである。また、隣設する網板は夫々の網目位置を
ずらして形成した杭穴掘削用ロッドである。Further, the rod for excavating a pile hole is characterized in that mesh plates are radially provided at equal intervals on the outside of the intermediate portion of the rod body. Further, the net plates adjacent to each other are pile hole excavating rods formed by shifting the respective mesh positions.
【０００７】更に、ロッド本体の中間部外側に螺旋網を
取り付けたことを特徴とする杭穴掘削用ロッドである。
また、異なる位相の１対の螺旋網を並列して取り付けた
杭穴掘削用ロッドである。Further, the rod for excavating a pile hole is characterized in that a spiral net is attached to the outside of the intermediate portion of the rod body.
Further, it is a rod for excavating a pile hole in which a pair of spiral nets having different phases are attached in parallel.
【０００８】[0008]
【作用】この発明はロッド本体の回転あるいは昇降によ
り螺旋網の網目に土の塊が当たる際に、あるいは螺旋網
表面を転がる際に、土の塊を細かく砕くことができる。
また、ロッド本体の回転により網板は網目に土の塊が当
たる際に、土の塊を細かく砕くことができる。According to the present invention, the lump of soil can be finely crushed when the lump of soil hits the mesh of the spiral net by rolling or elevating the rod body or when rolling on the surface of the spiral net.
Further, the rotation of the rod body allows the mesh plate to crush the lump of soil finely when the lump of soil hits the mesh.
【０００９】[0009]
【実施例】図面に基づきこの発明の実施例を説明する。Embodiments of the present invention will be described with reference to the drawings.
【００１０】回転装置の回転軸（図示していない）下端
に連結するロッド本体１の下端部に掘削羽根２、２を取
り付け、前記掘削羽根２、２の下端に夫々掘削刃３、３
を突設する。前記掘削羽根２の上縁２ａに、前記掘削羽
根２と同一旋回方向でかつ同一径の螺旋網４を連結する
（図１）。前記螺旋網は下部の網目は細目（例えば、網
目３０mm程度）とし、上部の網目は粗目（例えば、網目
１００mm程度）に形成する。また、前記螺旋網４は６巻
程度の巻き数で形成する。Excavating blades 2 and 2 are attached to the lower end of a rod body 1 connected to the lower end of a rotary shaft (not shown) of a rotating device, and the excavating blades 3 and 3 are attached to the lower ends of the excavating blades 2 and 2, respectively.
To project. A spiral net 4 having the same turning direction and the same diameter as that of the excavating blade 2 is connected to the upper edge 2a of the excavating blade 2 (FIG. 1). The lower mesh of the spiral mesh is fine (for example, mesh of about 30 mm), and the upper mesh is coarse (for example, mesh of about 100 mm). Further, the spiral net 4 is formed with about 6 turns.
【００１１】また、ロッド本体１の中間部には所定の間
隔を開けて、練付ドラム５、５が取り付ける。前記練付
ドラム５はロッド本体１に放射状に等間隔に練付ドラム
片５ａ、５ａを突設して形成しする。前記練付ドラム
５、５の間の前記ロッド本体１に、網板６及び網板７を
２枚づつ計４枚を等間隔で放射状に突設する。隣接する
前記網板６、７の上縁を相互に補強杆８で連結する（図
２、図３）。前記網板６は方形枠材９の内側に網１０を
張設して構成する。また、前記網板７は前記方形枠材９
の内側に網１０ａを張設して構成する。前記網１０と網
１０ａとは、網目５０乃至１００mm程度の大きさであ
り、かつ互いに網目の位置をずらして形成する（図４
（ａ）（ｂ））。Further, the kneading drums 5 and 5 are attached to the intermediate portion of the rod body 1 at a predetermined interval. The kneading drum 5 is formed by projecting kneading drum pieces 5a, 5a radially on the rod body 1 at equal intervals. On the rod body 1 between the kneading drums 5 and 5, two net plates 6 and seven net plates 4 are radially projected at equal intervals. The upper edges of the adjacent mesh plates 6 and 7 are connected to each other by a reinforcing rod 8 (FIGS. 2 and 3). The mesh plate 6 is constructed by stretching a mesh 10 inside the rectangular frame member 9. In addition, the mesh plate 7 is the rectangular frame member 9
The net 10a is stretched inside the inside of the structure. The mesh 10 and the mesh 10a have a mesh size of about 50 to 100 mm, and are formed by shifting the mesh positions (FIG. 4).
(A) (b)).
【００１２】また、前記網板６、７設置部分の上方の、
前記練付ドラム５、５の中間で、前記ロッド本体１に１
巻分の螺旋網１１、１２を互いに位相を１８０度違え
て、並列して取り付ける（図５）。前記において、螺旋
網１１、１２は前記掘削羽根２と同一旋回方向でかつ同
一径で形成する。また、網目は１００mm程度の大きさで
ある。Also, above the installation portions of the mesh plates 6 and 7,
In the middle of the kneading drums 5, 5, the rod body 1
The spiral nets 11 and 12 for the windings are attached in parallel with each other with a phase difference of 180 degrees (FIG. 5). In the above, the spiral nets 11 and 12 are formed in the same turning direction and the same diameter as the excavating blade 2. The mesh size is about 100 mm.
【００１３】 以上のようにして、ロッド本体１に、螺
旋網４、網板６、７、螺旋網１１、１２を取り付けて杭
穴掘削用ロッド１３を形成する。As described above, the spiral net 4, the net plates 6 and 7, and the spiral nets 11 and 12 are attached to the rod body 1 to form the pile hole excavating rod 13 .
【００１４】次に前記実施例に基づくこの発明の使用に
ついて説明する。Next, the use of the present invention based on the above embodiment will be described.
【００１５】ロッド本体１を正回転し、掘削刃３で杭穴
１４を掘削すると泥水内で掘削土は掘削羽根３で螺旋網
４に上げられ、砂分や細かい土は網目から抜ける。When the rod main body 1 is rotated in the normal direction and the pile hole 14 is excavated by the excavating blade 3, the excavated soil is lifted by the excavation blade 3 to the spiral net 4 in the muddy water, and the sand content and the fine soil are removed from the mesh.
【００１６】また、中程度の土の塊は螺旋網４の下部の
網目に当たり、あるいは螺旋網上を転がりながら砕け細
かくなり、上方に上げられ、螺旋網４の上部の粗目部分
の網目から抜け、下方に落ちる。落下した塊は螺旋網４
の下部で掬い上げられ、再び同様の粉砕が繰り返され、
螺旋網４の下部の網目を通過できる程度の細かさまで砕
かれる。[0016] Further, the medium-sized lump of soil hits the lower mesh of the spiral net 4, or is crushed into fine pieces while rolling on the spiral net, is lifted up, and escapes from the coarse mesh of the upper part of the spiral net 4, Falls down. The falling lump is a spiral net 4
Was scooped up at the bottom of, and the same crushing was repeated again,
It is crushed to a fineness that allows it to pass through the lower mesh of the spiral net 4.
【００１７】また、大きな土の塊や礫は網目に当たり、
転がりながら砕けつつも螺旋網４上部の粗目の網目から
も落下せず、網目を転がりながら上方に移送され、螺旋
網４の上端縁から落下する。落下した塊は前記中程度の
塊と同様に、螺旋網４の下部で掬い上げられ、再び同様
の粉砕が繰り返され、最終的に螺旋網４の下部の網目を
通過できる程度の細かさまで砕かれる。In addition, large lumps of soil and gravel hit the mesh,
While rolling and breaking, it does not fall from the coarse mesh on the upper part of the spiral net 4, is transferred upward while rolling the mesh, and drops from the upper edge of the spiral net 4. The dropped lumps are scooped up in the lower part of the spiral net 4 like the above-mentioned medium sized mass, and the same crushing is repeated again, and finally crushed to a fineness that can pass through the lower mesh of the spiral net 4. .
【００１８】螺旋網４の上方に上げられた掘削土は網板
６、７により撹拌される。この際に網板６、７は網目位
置をずらしてあるので、撹拌されながら、土の塊は隣接
網板の網目により砕かれ、塊の大きさは小さくなる。更
に、上部の螺旋網１１、１２により、螺旋網４と同様
に、礫や土の塊の大きさを小さくしつつ撹拌する。The excavated soil raised above the spiral net 4 is agitated by the net plates 6 and 7. At this time, since the mesh positions of the mesh plates 6 and 7 are shifted, the agglomerates of soil are crushed by the meshes of the adjacent mesh plates while being stirred, and the size of the agglomerates is reduced. Further, like the spiral net 4, the upper spiral nets 11 and 12 stir while reducing the size of the gravel and the lump of soil.
【００１９】上記のようにして、大きな土の塊は、泥水
内で移送しやすい、あるいは泥水内に浮遊できる程度の
粒の大きさに砕かれ、かつ撹拌される。As described above, a large lump of soil is crushed into particles of such a size that it can be easily transported in muddy water or suspended in muddy water, and is stirred.
【００２０】また、上記はロッド本体１を回転した際の
作動について説明したが、ロッド本体１を昇降させた際
にも、前記螺旋網４、１１、１２上で土の塊は転がりあ
るいは、網目に当たるので、土の塊を細かくできると共
に、撹拌できる。Although the above description has been given of the operation when the rod main body 1 is rotated, when the rod main body 1 is moved up and down, a lump of soil rolls or meshes on the spiral nets 4, 11 and 12. Since it hits, it is possible to make the lump of soil fine and stir it.
【００２１】前記実施例において、掘削羽根２上方の螺
旋網４、網板６、７、中間部の螺旋網１１、１２の３種
類を１つのロッドに取り付けたが、いずれか１つあるい
は２つを選択して取り付けることもできる。In the above-mentioned embodiment, three kinds of the spiral net 4, the net plates 6 and 7, and the spiral nets 11 and 12 in the middle part above the excavation blade 2 are attached to one rod, but either one or two. You can also select and attach.
【００２２】また、前記実施例において、下部の螺旋網
４は６巻程度とりつけたが、巻数は限定しない。また、
螺旋網４は一重に巻いたが、螺旋網１１、１２のよう
に、位相を違えて二重に巻くこともできる。この場合に
は、一重に巻いた場合に比べ、粉砕及び撹拌の効果が高
まるので、二重巻きにした際には巻き数を減らしても同
等の効果が得られる。Further, in the above embodiment, the lower spiral net 4 has about 6 turns, but the number of turns is not limited. Also,
Although the spiral net 4 is wound in a single layer, it may be wound in double with different phases like the spiral nets 11 and 12. In this case, the effect of crushing and stirring is enhanced as compared with the case of single winding, and therefore the same effect can be obtained even when the number of windings is reduced when double winding.
【００２３】また、前記実施例において、中間部の螺旋
網１１、１２は１巻分とりつけたが巻数は限定しない。
また、中間部の螺旋網１１、１２は位相を違えて二重に
巻いたが、螺旋網４のように一重に巻くこともできる
が、ロッド本体の中間部は通常練付ドラムなどの設置物
が多いので、これらのスペースを確保する為には、二重
巻きとすることが望ましい。また、中間部の１対の螺旋
網１１、１２はロッド本体上の２箇所に設置したが、１
箇所あるいは３箇所以上でも可能である。この際には練
付ドラム５、５の中間に取り付けると効率的である。ま
た、螺旋網１１、１２複数箇所に設置した場合には、異
なる旋回方向に設置することもできる。この場合には、
ロッド本体１を昇降させた場合の撹拌及び粉砕の効率が
良くなる。Further, in the above embodiment, the spiral nets 11 and 12 in the middle part are attached for one turn, but the number of turns is not limited.
Further, the spiral nets 11 and 12 in the middle part are wound in double with different phases, but they can be wound in a single way like the spiral net 4, but the middle part of the rod body is usually an installation object such as a kneading drum. Therefore, double winding is preferable in order to secure these spaces. Also, the pair of spiral nets 11 and 12 in the middle part were installed at two locations on the rod body.
It is also possible to have three or more points. In this case, it is efficient to attach it in the middle of the kneading drums 5, 5. Further, when the spiral nets 11 and 12 are installed at a plurality of places, they can be installed in different turning directions. In this case,
The efficiency of stirring and crushing when the rod body 1 is moved up and down is improved.
【００２４】また、前記実施例において、網板の枚数は
４枚としたが、３枚あるいは４枚が望ましいが、２枚あ
るいは５枚以上でも可能である。また、ロッド本体１上
に複数箇所に設置することもできる。この際には、練付
ドラム５、５の中間に取り付けると効率的である。In the above embodiment, the number of mesh plates is four, but it is preferably three or four, but it is also possible to have two or five or more. It can also be installed at a plurality of locations on the rod body 1. At this time, it is efficient to attach the kneading drums 5 and 5 in the middle.
【００２５】[0025]
【発明の効果】この発明はロッド本体に螺旋網、あるい
は網板を取り付けたので、掘削土の塊を移送、あるいは
泥水内に浮遊できる程度の大きさに細かく粉砕できるの
で、大型の塊によりロッドが回転困難に陥るおそれもな
く、能率良く排土できる効果がある。更に杭穴内の泥水
を撹拌し均一化できる効果がある。According to the present invention, since the spiral net or the net plate is attached to the rod body, the lump of excavated soil can be transferred or finely crushed to a size that can be suspended in muddy water. It is effective in removing soil efficiently without the risk of being difficult to rotate. Furthermore, there is an effect that muddy water in the pile holes can be stirred and made uniform.
【００２６】また、以下のように、泥塊沈降調査実験を
行う。Further, a mud sedimentation survey experiment is conducted as follows.
【００２７】従来の撹拌棒付きロッド、網板付きロ
ッド、螺旋網付きロッド、で夫々１０ｍの杭穴を掘削
し、泥水で満された夫々の杭穴内を撹拌した後、夫々の
ロッドを引き抜いた。その直後、３０分後、１時間後に
夫々の杭穴内に、先端に直径３０mm、長さ３００mmの鉄
製の重りを付けた紐を、杭穴内中央に落下させたとこ
ろ、重りの先端の位置（地表面からの深さ、単位はメー
トル）は以下の表１のようになった。The conventional rods with stirring rods, rods with net plates, and rods with spiral nets were drilled into pile holes of 10 m each, and after stirring the pile holes filled with muddy water, the rods were pulled out. . Immediately after that, 30 minutes later, and 1 hour later, when a string with an iron weight with a diameter of 30 mm and a length of 300 mm was attached to the inside of each pile hole, it was dropped into the center of the pile hole. The depth from the surface and the unit is meters) are as shown in Table 1 below.
【００２８】[0028]
【表１】 [Table 1]
【００２９】上記のように、泥塊沈降調査実験では、杭
穴内の重りの到達点より下は、泥内に塊が多いことを示
している。従って、この発明の網板付きロッド、あるい
は螺旋網付きロッドの撹拌効果が優れていることが明ら
かである。As described above, the mud lump sedimentation examination experiment shows that there are many lumps in the mud below the arrival point of the weight in the pile hole. Therefore, it is clear that the rod with a net plate or the rod with a spiral net according to the present invention has an excellent stirring effect.
【図１】この発明の実施例の螺旋網を用いた正面図であ
る。FIG. 1 is a front view using a spiral net according to an embodiment of the present invention.
【図２】この発明の実施例の網板を用いた正面図であ
る。FIG. 2 is a front view using a mesh plate according to an embodiment of the present invention.
【図３】図２のＡ−Ａ線における断面図である。3 is a cross-sectional view taken along the line AA of FIG.
【図４】（ａ）（ｂ）はこの発明の実施例の網板の部分
拡大正面図である。4 (a) and 4 (b) are partially enlarged front views of a mesh plate according to an embodiment of the present invention.
【図５】この発明の実施例の他の螺旋網を用いた正面図
である。FIG. 5 is a front view of another spiral net according to the embodiment of the present invention.
１ ロッド本体 ２ 掘削羽根 ４ 螺旋網 ６ 網板 ７ 網板 １１ 螺旋網 １２ 螺旋網 １３ 杭穴掘削ロッド 1 Rod Main Body 2 Excavation Blade 4 Spiral Net 6 Net Plate 7 Net Plate 11 Spiral Net 12 Spiral Net 13 Pile Hole Drilling Rod
Claims (6)
外側の前記掘削羽根の上方に螺旋網を取り付けたことを
特徴とする杭穴掘削用ロッド1. A rod for excavating a pile hole, characterized in that a spiral net is attached above the excavation blade outside the rod body having the excavation blade at the lower end.
した請求項１に記載の杭穴掘削用ロッド2. The rod for excavating a pile hole according to claim 1, wherein the spiral net has a fine lower part and a coarse upper part.
隔で放射状に突設したことを特徴とした杭穴掘削用ロッ
ド3. A rod for excavating a pile hole, characterized in that mesh plates are radially provided at equal intervals on the outside of the intermediate portion of the rod body.
て形成した請求項３に記載の杭穴掘削用ロッド4. The rod for excavating a pile hole according to claim 3, wherein adjacent mesh plates are formed by shifting the mesh positions of the mesh plates.
付けたことを特徴とする杭穴掘削用ロッド5. A rod for excavating a pile hole, characterized in that a spiral net is attached to the outside of the intermediate portion of the rod body.
り付けた請求項１または５に記載の杭穴掘削用ロッド6. The pile hole excavating rod according to claim 1, wherein a pair of spiral nets having different phases are attached in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19069691A JPH0758027B2 (en) | 1991-07-04 | 1991-07-04 | Pile hole drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19069691A JPH0758027B2 (en) | 1991-07-04 | 1991-07-04 | Pile hole drilling rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0510082A JPH0510082A (en) | 1993-01-19 |
| JPH0758027B2 true JPH0758027B2 (en) | 1995-06-21 |
Family
ID=16262336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19069691A Expired - Fee Related JPH0758027B2 (en) | 1991-07-04 | 1991-07-04 | Pile hole drilling rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0758027B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6499500B2 (en) * | 2015-04-20 | 2019-04-10 | 株式会社日立製作所 | Downhole compressor |
-
1991
- 1991-07-04 JP JP19069691A patent/JPH0758027B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0510082A (en) | 1993-01-19 |
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