JP2002339346A - Joint structure of pile - Google Patents
Joint structure of pileInfo
- Publication number
- JP2002339346A JP2002339346A JP2001142504A JP2001142504A JP2002339346A JP 2002339346 A JP2002339346 A JP 2002339346A JP 2001142504 A JP2001142504 A JP 2001142504A JP 2001142504 A JP2001142504 A JP 2001142504A JP 2002339346 A JP2002339346 A JP 2002339346A
- Authority
- JP
- Japan
- Prior art keywords
- pile
- socket
- face
- port
- opening
- 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
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は杭の継手構造に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pile joint structure.
【０００２】[0002]
【従来の技術】通常、建造物用の基礎として使用される
杭は、例えばダクタイル鋳鉄製の複数の鋳造管を接合す
ることにより形成される。この杭を建造物用の基礎とし
て用いるために、垂直に埋設させた状態で設けるには、
下部に螺旋状の掘削部を有する先頭管に回転トルクを作
用させ、この螺旋状の掘削部により地面を垂直に掘り下
げる。先頭管がある程度の深さまで地中に入り込むと、
掘削部とは逆側の端部に新たな管を継ぎ足して固定し、
この継ぎ足した管に回転トルクを作用させ、さらに先頭
管を地中深くに掘進させていく。2. Description of the Related Art Usually, a pile used as a foundation for a building is formed by joining a plurality of cast pipes made of, for example, ductile cast iron. To use this pile vertically buried for use as a foundation for buildings,
A rotating torque is applied to a leading pipe having a spiral excavated portion at a lower portion, and the spiral excavated portion digs down the ground vertically. When the head pipe enters the ground to a certain depth,
A new pipe is added to the end opposite to the excavated part and fixed,
A rotating torque is applied to the added pipe, and the leading pipe is dug deep into the ground.
【０００３】継ぎ足した管がある程度の深さまで地中に
入り込むと、その上端部に新たな管を継ぎ足して固定
し、同様の作業を、杭が所定の長さに形成されるまで繰
り返し行う。これにより、杭を垂直に埋設させた状態で
設けることができる。When the added pipe enters the ground to a certain depth, a new pipe is added to the upper end thereof and fixed, and the same operation is repeated until the pile is formed to a predetermined length. Thereby, the pile can be provided in a vertically buried state.
【０００４】上記の杭の形成方法において、管と管との
接合状態、すなわち回転トルクが伝達可能である杭の継
手構造を図５を参照しながら説明する。図５に示すよう
に、上管３の下端部に形成された受口４が、下管１の上
端部に形成された挿口２に被せられた状態で、これら上
管３と下管１とが継ぎ足されて、杭５を形成している。[0004] In the above-described method for forming a pile, a joint state between pipes, that is, a joint structure of a pile capable of transmitting rotational torque will be described with reference to FIG. As shown in FIG. 5, in a state where the receiving port 4 formed at the lower end of the upper pipe 3 is covered by the insertion port 2 formed at the upper end of the lower pipe 1, the upper pipe 3 and the lower pipe 1 are covered. Are added to form the pile 5.
【０００５】建造物用の杭５の施工現場における下管１
及び上管３の接合方法としては、図６に示すように、受
口４の内側の奥端面７が挿口２の端面６に当たるまで、
受口４を挿口２に被せ、適宜の方法で挿口２と受口４と
が互いにずれないように固定したうえで、ドリル８を用
いて受口４と挿口２とに共あけ加工を施し、共孔９を形
成する。挿口２及び受口４において、この共孔９から軸
心を通って向かい側となる位置にも同様に共孔９を形成
する。その後、共孔９を形成した位置から軸方向に適宜
にずれた位置で、かつ加工を施した方向から周方向にず
れた位置、例えば９０度ずれた位置に、上記と同様に、
挿口２及び受口４の２箇所に共あけ加工を施し、それぞ
れ他の共孔９を形成する。[0005] Lower pipe 1 at construction site of pile 5 for building
As a method for joining the upper pipe 3, as shown in FIG. 6, the inner end face 7 of the receptacle 4 hits the end face 6 of the insertion port 2.
The receiving port 4 is put on the insertion port 2, and the insertion port 2 and the receiving port 4 are fixed by an appropriate method so as not to be displaced from each other. To form a common hole 9. In the insertion opening 2 and the receiving opening 4, a co-hole 9 is formed at a position on the opposite side from the co-hole 9 through the axis. Thereafter, at a position appropriately shifted in the axial direction from the position where the co-hole 9 is formed, and at a position shifted in the circumferential direction from the direction in which the processing is performed, for example, at a position shifted by 90 degrees, similarly to the above,
Two holes, the insertion opening 2 and the receiving opening 4, are subjected to co-drilling processing to form other co-holes 9 respectively.
【０００６】４個の共孔９を形成すると、図５に示すよ
うに、径方向に相対する共孔９どうしにボルト１０を挿
し通し、その両端からワッシャ１１を介在させてナット
１２を締め、挿口２と受口４とが互いにずれないように
固定する。この位置から軸方向にずれた位置で、かつ周
方向に９０度ずれた位置における共孔９についても、上
記と同様に、径方向に相対する共孔９どうしにボルト１
０を挿し通し、その両端からワッシャ１１を介在させて
ナット１２を締め、挿口２と受口４とが互いにずれない
ようにさらに固定する。このように、挿口２及び受口４
が杭５として一体化するように固定されるので、形成さ
れる杭５の構造が安定し、先頭管（図示は省略）を掘進
させるための回転トルクを伝達することができ、また、
杭５の打設後は建造物を安定に支持することができる。When the four co-holes 9 are formed, as shown in FIG. 5, bolts 10 are inserted through the co-holes 9 facing each other in the radial direction, and nuts 12 are tightened with washers 11 interposed from both ends thereof. The insertion opening 2 and the receiving opening 4 are fixed so as not to be shifted from each other. Similarly to the above, the bolts 1 at the positions axially displaced from this position and at a position shifted 90 degrees in the circumferential direction are connected to the holes 9 facing each other in the radial direction.
0 is inserted, and the nut 12 is tightened from both ends thereof with the washers 11 interposed therebetween to further fix the insertion opening 2 and the receiving opening 4 so as not to be displaced from each other. Thus, the insertion port 2 and the reception port 4
Are fixed so as to be integrated as a pile 5, the structure of the formed pile 5 is stable, and a rotational torque for excavating a head pipe (not shown) can be transmitted.
After the pile 5 has been driven, the building can be stably supported.
【０００７】[0007]
【発明が解決しようとする課題】このように従来におい
ては、杭５を形成する下管１及び上管３を接合する際に
は、杭５の施工現場においてその都度受口４及び挿口２
に共あけ加工を施していた。As described above, in the prior art, when the lower pipe 1 and the upper pipe 3 forming the pile 5 are joined, the receiving port 4 and the insertion port 2 are required each time the pile 5 is constructed.
Had been drilled together.
【０００８】しかし、施工現場において挿口２及び受口
４に共あけ加工を施すことは、受口４の奥端面７と挿口
２の端面６とを合わせたうえで互いに固定し、ドリル８
を用いて共孔９を形成するので、作業時間の遅延につな
がる恐れがある。However, when the opening 2 and the receiving port 4 are subjected to co-drilling at the construction site, the rear end face 7 of the receiving port 4 and the end face 6 of the inserting port 2 are fixed to each other, and the drill 8 is fixed.
Since the holes 9 are formed by using the method, there is a possibility that the working time is delayed.
【０００９】このような作業時間の遅延を解消するため
には、管の製造工場などにおいて、事前に共孔９を挿口
２及び受口４に設けておくと、杭５の施工現場での作業
を省くことができるので良いのであるが、そうすると、
共孔９の加工時に生じる寸法公差を許容するために、若
干大きめの共孔９を形成しておかなくてはならない。し
かし、このような若干大きめに形成された共孔９を用い
ると、周方向及び軸方向にガタが生じる恐れがあり、建
造物の基礎となる杭５としての役割上、大きめの共孔９
を形成することはあまり好ましくないため、あらかじめ
共孔９を形成するのは適当でない。In order to eliminate such a delay of the working time, if a common hole 9 is previously provided in the insertion opening 2 and the receiving opening 4 in a pipe manufacturing plant or the like, the pile 5 at the construction site is This is good because it saves you work, but
In order to allow a dimensional tolerance generated when the co-hole 9 is machined, a slightly larger co-hole 9 must be formed. However, if such a slightly larger hole 9 is used, play may occur in the circumferential direction and the axial direction.
It is not preferable to form the through hole 9 in advance because it is not preferable to form the through hole 9.
【００１０】そこで本発明は、このような問題点を解決
して、杭の施工現場において、杭を形成する管どうしを
共あけ加工を施すことなく接合できるようにすることを
目的とする。Accordingly, an object of the present invention is to solve such a problem and to enable pipes forming a pile to be joined together without performing drilling work at a pile construction site.
【００１１】[0011]
【課題を解決するための手段】上記課題を解決するため
に請求項１記載の発明は、複数の鋳造管を接合すること
によって形成される杭において、互いに接合される一方
の管の端部に形成された挿口に、他方の管の端部に形成
された受口が被せられ、かつ前記受口の内部における奥
端面が前記挿口における端面に接触して前記杭の軸方向
に作用する圧縮力を支持可能とされ、前記受口に入り込
んでいる前記挿口に対応する、前記受口の適宜の位置に
は、前記受口を径方向に貫通するねじ孔が形成され、前
記ねじ孔にはボルトが、その先端面で前記挿口の外周面
を押圧するようにねじ込まれているものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, in a pile formed by joining a plurality of cast pipes, an end of one of the pipes joined to each other is provided. A socket formed at the end of the other pipe is covered by the formed insertion port, and a rear end face inside the reception port contacts an end face of the insertion port and acts in the axial direction of the pile. A screw hole is formed at an appropriate position of the receiving port, which is capable of supporting a compressive force and corresponds to the insertion port that has entered the receiving port, and penetrates the receiving port in the radial direction. , A bolt is screwed in such a manner that the distal end surface presses the outer peripheral surface of the insertion opening.
【００１２】このような構成によれば、受口に入り込ん
でいる挿口に対応する、受口の適宜の位置には、受口を
径方向に貫通するねじ孔が形成されており、このねじ孔
にはボルトが、その先端面で挿口の外周面を押圧するよ
うにねじ込まれているので、ボルトの先端面と挿口の外
周面との間に生じる摩擦力により、挿口と受口とを周方
向及び軸方向に対して固定することができる。したがっ
て、挿口及び受口に共孔を形成する必要がなく、杭の施
工現場において挿口と受口とを容易に接合することがで
き、効率よく施工作業を行うことができる。さらに、し
っかりと挿口と受口とを一体化させることができるの
で、安定した構造の杭を形成することができる。また、
一方の管に作用する回転トルクを、ボルトの先端面と挿
口の外周面との間に生じる摩擦力により他方の管に伝達
することができる。According to such a configuration, a screw hole is formed at an appropriate position of the receiving port corresponding to the insertion port that has entered the receiving port in a radial direction through the receiving port. The bolt is screwed into the hole so that the distal end surface presses the outer peripheral surface of the insertion hole. Can be fixed in the circumferential direction and the axial direction. Therefore, it is not necessary to form a co-hole in the insertion opening and the reception opening, and the insertion opening and the reception opening can be easily joined at the pile construction site, and the construction work can be performed efficiently. Further, since the insertion opening and the receiving opening can be firmly integrated, a pile having a stable structure can be formed. Also,
The rotation torque acting on one of the tubes can be transmitted to the other tube by the frictional force generated between the tip surface of the bolt and the outer peripheral surface of the insertion opening.
【００１３】[0013]
【発明の実施の形態】本発明に基づく杭の継手構造を図
１〜図３を参照しながら説明する。図１及び図２に示す
ように、上管３の下端部に形成された受口４が、下管１
の上端部に形成された挿口２に継ぎ足されて杭５を形成
している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A joint structure for a pile according to the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the receiving port 4 formed at the lower end of the upper pipe 3 is
Is connected to an insertion opening 2 formed at the upper end of the stake 5 to form a pile 5.
【００１４】挿口２がはまり込む受口４の形状を図３に
示す。図３に示すように、受口４の先端側４ｃは、受口
４における他の部分に比べて厚肉に形成されており、こ
の受口４の先端側４ｃにおける適宜の位置、例えば周方
向に一定の距離をおいた４ヶ所の位置には、この受口４
の先端側４ｃを径方向に貫通するねじ孔１３が形成され
ている。なお、受口４の先端側４ｃにおいて厚肉に形成
されている部分は、ねじ孔１３の周囲のみ、または受口
４の全周にわたってのどちらでも良い。さらに、受口４
における内周面４ａの奥には、奥端面７が形成されてい
る。FIG. 3 shows the shape of the receptacle 4 into which the insertion port 2 fits. As shown in FIG. 3, the distal end 4 c of the receptacle 4 is formed thicker than other parts of the receptacle 4, and an appropriate position on the distal end 4 c of the receptacle 4, for example, in the circumferential direction At four locations at a fixed distance from each other,
A screw hole 13 is formed to penetrate the distal end side 4c in the radial direction. In addition, the portion formed thick at the distal end side 4 c of the receptacle 4 may be either only around the screw hole 13 or over the entire circumference of the receptacle 4. In addition, socket 4
In the back of the inner peripheral surface 4a, a rear end surface 7 is formed.
【００１５】上記のような構成において、図１及び図２
に示すように、受口４の奥端面７が挿口２の端面６に当
たるまで、上管３における受口４を下管１における挿口
２に被せていき、受口４における奥端面７が挿口２にお
ける端面６に当たると、受口４の先端側４ｃに設けられ
ている４ヶ所のねじ孔１３にボルト１４を、その先端面
１５が挿口２の外周面２ａを強く押圧するように強くね
じ込む。In the above configuration, FIG. 1 and FIG.
As shown in the figure, the receiving end 4 of the upper pipe 3 is covered with the receiving end 2 of the lower pipe 1 until the rear end face 7 of the receiving end 4 hits the end face 6 of the insertion end 2. When hitting the end face 6 of the insertion port 2, the bolt 14 is inserted into four screw holes 13 provided on the front end side 4 c of the receiving port 4, and the front end face 15 presses the outer peripheral surface 2 a of the insertion port 2 strongly. Screw tight.
【００１６】図１、図２及び図４に示すように、このボ
ルト１４の先端部１５はくぼみ先に形成されており、挿
口２の外周面２ａに接するボルト１４の先端部１５の面
積をできるだけ狭く形成することで、ボルト１４の先端
部１５が挿口２の外周面２ａを押す圧力を大きくし、先
端部１５が挿口２の外周面２ａに食い込むようにするこ
とができ、挿口２と受口４との間により大きな接合力を
生じさせることができる。As shown in FIGS. 1, 2 and 4, the tip 15 of the bolt 14 is formed in a concave portion, and the area of the tip 15 of the bolt 14 which is in contact with the outer peripheral surface 2a of the insertion opening 2 is reduced. By forming the bolt as narrow as possible, the pressure at which the distal end portion 15 of the bolt 14 presses the outer peripheral surface 2a of the insertion opening 2 can be increased, and the distal end portion 15 can bite into the outer peripheral surface 2a of the insertion opening 2. A larger joining force can be generated between the socket 2 and the socket 4.
【００１７】このようにして、ボルト１４の先端面１５
と挿口２の外周面２ａとの間に大きな摩擦力を生じさせ
ることにより、挿口２と受口４とを周方向及び軸方向に
対して互いにずれないようにしっかりと一体化させた状
態で固定することができる。In this manner, the tip surface 15 of the bolt 14
A large frictional force is generated between the insertion opening 2 and the outer peripheral surface 2a of the insertion opening 2 so that the insertion opening 2 and the receiving opening 4 are firmly integrated so as not to be displaced from each other in the circumferential direction and the axial direction. Can be fixed.
【００１８】したがって、挿口２及び受口４に共孔９を
形成する必要がなく、杭５の施工現場において挿口２と
受口４とを容易に接合することができ、効率よく施工作
業を行うことができる。さらに、しっかりと挿口２と受
口４とを一体化させることができるので、安定した構造
の杭５を形成することができる。また、上管３に作用す
る回転トルクを、ボルト１４の先端面１５と挿口２の外
周面２ａとの間に生じる摩擦力により下管１に伝達する
ことができる。さらに、施工のやり直し等で杭５を引き
抜く場合が発生しても、挿口２と受口４とがしっかりと
一体的に接合されているため、挿口２から受口４がはず
れることはなく、杭５の軸方向に作用する引き抜き力に
十分に耐えることができる。Therefore, it is not necessary to form the co-hole 9 in the insertion port 2 and the receiving port 4, and the insertion port 2 and the receiving port 4 can be easily joined at the construction site of the pile 5, and the construction work can be efficiently performed. It can be performed. Further, since the insertion opening 2 and the receiving opening 4 can be firmly integrated, the pile 5 having a stable structure can be formed. Further, the rotational torque acting on the upper pipe 3 can be transmitted to the lower pipe 1 by a frictional force generated between the distal end face 15 of the bolt 14 and the outer peripheral face 2 a of the insertion opening 2. Further, even if the pile 5 is pulled out due to re-installation or the like, since the insertion port 2 and the reception port 4 are firmly and integrally joined, the reception port 4 does not come off from the insertion port 2. Therefore, the pile 5 can sufficiently withstand the pulling force acting in the axial direction.
【００１９】[0019]
【発明の効果】以上のように本発明によると、受口に入
り込んでいる挿口に対応する、受口の適宜の位置には、
受口を径方向に貫通するねじ孔が形成されており、この
ねじ孔にはボルトが、その先端面で挿口の外周面を押圧
するようにねじ込まれているので、ボルトの先端面と挿
口の外周面との間に生じる摩擦力により、挿口と受口と
を周方向及び軸方向に対して固定することができる。し
たがって、挿口及び受口に共孔を形成する必要がなく、
杭の施工現場において挿口と受口とを容易に接合するこ
とができ、効率よく施工作業を行うことができる。さら
に、しっかりと挿口と受口とを一体化させることができ
るので、安定した構造の杭を形成することができる。ま
た、一方の管に作用する回転トルクを、ボルトの先端面
と挿口の外周面との間に生じる摩擦力により他方の管に
伝達することができる。As described above, according to the present invention, at an appropriate position of the receiving port corresponding to the insertion port entering the receiving port,
A screw hole is formed through the socket in the radial direction, and a bolt is screwed into this screw hole so that the tip surface presses the outer peripheral surface of the insertion hole. The insertion opening and the reception opening can be fixed in the circumferential direction and the axial direction by the frictional force generated between the opening and the outer peripheral surface of the opening. Therefore, it is not necessary to form a co-hole in the insertion opening and the receiving opening,
The insertion opening and the receiving opening can be easily joined at the construction site of the pile, and the construction work can be performed efficiently. Further, since the insertion opening and the receiving opening can be firmly integrated, a pile having a stable structure can be formed. Further, the rotational torque acting on one of the tubes can be transmitted to the other tube by the frictional force generated between the tip surface of the bolt and the outer peripheral surface of the insertion opening.
【図１】本発明における杭の継手構造を示す軸方向の断
面図である。FIG. 1 is an axial sectional view showing a joint structure of a pile according to the present invention.
【図２】本発明における杭の継手構造を示す径方向の断
面図である。FIG. 2 is a radial sectional view showing a joint structure of a pile according to the present invention.
【図３】本発明に基づく杭を形成する受口及び挿口の軸
方向の断面図である。FIG. 3 is an axial sectional view of a socket and a socket forming a pile according to the present invention.
【図４】図１における要部を拡大して示す図である。FIG. 4 is an enlarged view showing a main part in FIG. 1;
【図５】従来の杭の継手構造を示す軸方向の断面図であ
る。FIG. 5 is an axial sectional view showing a joint structure of a conventional pile.
【図６】従来の杭を形成する方法を示す断面図である。FIG. 6 is a cross-sectional view illustrating a conventional method for forming a pile.
１ 下管 ２ 挿口 ２ａ 外周面 ３ 上管 ４ 受口 ５ 杭 ６ 端面 ７ 奥端面 １３ ねじ孔 １４ ボルト １５ 先端面 DESCRIPTION OF SYMBOLS 1 Lower pipe 2 Insertion opening 2a Outer peripheral surface 3 Upper pipe 4 Reception port 5 Pile 6 End face 7 Back end face 13 Screw hole 14 Bolt 15 Tip face
Claims (1)
される杭において、互いに接合される一方の管の端部に
形成された挿口に、他方の管の端部に形成された受口が
被せられ、かつ前記受口の内部における奥端面が前記挿
口における端面に接触して前記杭の軸方向に作用する圧
縮力を支持可能とされ、前記受口に入り込んでいる前記
挿口に対応する、前記受口の適宜の位置には、前記受口
を径方向に貫通するねじ孔が形成され、前記ねじ孔には
ボルトが、その先端面で前記挿口の外周面を押圧するよ
うにねじ込まれていることを特徴とする杭の継手構造。1. A pile formed by joining a plurality of cast pipes, a spigot formed at an end of one of the pipes joined to each other, and a socket formed at an end of the other pipe. Is covered, and the inner end surface of the receptacle is capable of supporting a compressive force acting in the axial direction of the pile by contacting the end face of the insertion port, and the insertion port entering the reception port is Correspondingly, at an appropriate position of the socket, a screw hole is formed to penetrate the socket in the radial direction, and a bolt is pressed in the screw hole so that the tip end surface presses the outer peripheral surface of the insertion port. A joint structure for a pile, which is screwed into the pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001142504A JP2002339346A (en) | 2001-05-14 | 2001-05-14 | Joint structure of pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001142504A JP2002339346A (en) | 2001-05-14 | 2001-05-14 | Joint structure of pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002339346A true JP2002339346A (en) | 2002-11-27 |
Family
ID=18988793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001142504A Pending JP2002339346A (en) | 2001-05-14 | 2001-05-14 | Joint structure of pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002339346A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101238124B1 (en) * | 2012-06-27 | 2013-02-27 | 반석기초이앤씨(주) | Rotary pile and construction method using the same |
| KR101385883B1 (en) | 2012-07-02 | 2014-04-28 | 반석기초이앤씨(주) | Rotary pile for urethane hard soil and construction method using the same |
-
2001
- 2001-05-14 JP JP2001142504A patent/JP2002339346A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101238124B1 (en) * | 2012-06-27 | 2013-02-27 | 반석기초이앤씨(주) | Rotary pile and construction method using the same |
| KR101385883B1 (en) | 2012-07-02 | 2014-04-28 | 반석기초이앤씨(주) | Rotary pile for urethane hard soil and construction method using the same |
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