JP2013163890A - Connection method for foundation pile for housing - Google Patents

Connection method for foundation pile for housing Download PDF

Info

Publication number
JP2013163890A
JP2013163890A JP2012025850A JP2012025850A JP2013163890A JP 2013163890 A JP2013163890 A JP 2013163890A JP 2012025850 A JP2012025850 A JP 2012025850A JP 2012025850 A JP2012025850 A JP 2012025850A JP 2013163890 A JP2013163890 A JP 2013163890A
Authority
JP
Japan
Prior art keywords
pipe
steel pipe
steel
holes
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
Application number
JP2012025850A
Other languages
Japanese (ja)
Other versions
JP5831874B2 (en
Inventor
Keizo Kawamura
圭造 河村
Yoji Yamamoto
洋司 山本
Masaki Sano
将基 佐野
Yasuo Okuyama
康夫 奥山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Yoshimoto Pole Co Ltd
Original Assignee
Nippon Steel and Sumitomo Metal Corp
Yoshimoto Pole Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel and Sumitomo Metal Corp, Yoshimoto Pole Co Ltd filed Critical Nippon Steel and Sumitomo Metal Corp
Priority to JP2012025850A priority Critical patent/JP5831874B2/en
Publication of JP2013163890A publication Critical patent/JP2013163890A/en
Application granted granted Critical
Publication of JP5831874B2 publication Critical patent/JP5831874B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Piles And Underground Anchors (AREA)
  • Foundations (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a connection method for a foundation pile for housing, which enables steel pipes to be easily and surely connected together on a job site without the need for welding work.SOLUTION: A tapered pipe expansion part 4, which has both surfaces provided with through-holes 7, is preformed at an end of one steel pipe 1, and a tapered pipe contraction part 3, which is formed at an end of the other steel pipe 2, is pressed into the inside of the pipe expansion part 4 and connected. Subsequently, a drill makes a hole drilled in the inside pipe contraction part 3 from each of the through-holes 7. After that, a bolt 6 is inserted between the through-holes 7 and 7 and fastened.

Description

本発明は、複数本の鋼管を作業現場で連結して住宅用基礎杭として用いる際に用いられる、住宅用基礎杭の連結方法に関するものである。   The present invention relates to a method of connecting residential foundation piles, which is used when a plurality of steel pipes are connected at a work site to be used as a residential foundation pile.

戸建住宅などの比較的小規模の住宅を建設する際に、地中に鋼管製の基礎杭を打ち込む場合がある。１本の鋼管の長さが５ｍを超えると運搬できる車両が制限されたり、道路事情によっては工事現場への搬入に困難を生じる可能性がある。このため大型のビル建設の場合とは異なり、比較的小規模の住宅建設の場合には、３〜５ｍ程度の長さの鋼管を作業現場に搬入し、順次連結して基礎杭としている。なお、住宅用基礎杭として要求される長さは地盤の状況によりさまざまであるが、１０ｍ前後が一般的である。   When a relatively small house such as a detached house is constructed, a steel pipe foundation pile may be driven into the ground. If the length of one steel pipe exceeds 5 m, vehicles that can be transported may be restricted, or it may be difficult to carry into a construction site depending on road conditions. For this reason, unlike the case of large-scale building construction, in the case of relatively small-scale housing construction, a steel pipe having a length of about 3 to 5 m is carried into the work site and sequentially connected to form a foundation pile. In addition, although the length requested | required as a foundation pile for a house is various according to the condition of the ground, around 10 m is common.

このような鋼管の連結には、特許文献１に示されるように鋼管の端面どうしを周溶接する方法が普通である。しかし大規模なビル建設の場合とは異なり、比較的小規模の住宅の建設工事においては、溶接資格を持つ溶接工を確保することが容易ではない。また作業現場での周溶接により鋼管の端面どうしを連結する場合には、端面が鋼管の軸線に対して正確な真直度を持っていないと、連結された鋼管の軸線が相互に一致せず、地中への埋設がうまく行えなくなるおそれがある。   For connection of such steel pipes, a method of circumferentially welding the end faces of the steel pipes as shown in Patent Document 1 is common. However, unlike the construction of large-scale buildings, it is not easy to secure a welder with a welding qualification in the construction of a relatively small house. Also, when connecting the end faces of steel pipes by circumferential welding at the work site, if the end faces do not have an accurate straightness with respect to the axis of the steel pipe, the axes of the connected steel pipes do not match each other, There is a risk that it will not be possible to embed underground.

このような問題を回避するために、鋼管の端部どうしをカプラーを用いて機械的に連結する方法も用いられている。しかし多くの連結部にそれぞれカプラーを用いる必要があるため、コストが非常に高くなるという問題がある。   In order to avoid such a problem, a method of mechanically connecting the ends of steel pipes using a coupler is also used. However, since it is necessary to use a coupler for each of many connecting portions, there is a problem that the cost becomes very high.

特開２００３−６４６７３号公報JP 2003-64673 A

従って本発明の目的は上記した従来の問題点を解決し、溶接工を必要とせず、作業現場において鋼管を容易にかつ確実に連結することができる住宅用基礎杭の連結方法を提供することである。   Accordingly, an object of the present invention is to solve the above-described conventional problems, and to provide a method for connecting a foundation pile for housing that can easily and reliably connect a steel pipe at a work site without requiring a welder. is there.

上記の課題を解決するためになされた本発明は、一方の鋼管の端部に、貫通孔を両面に備えたテーパー状の拡管部を形成しておき、他方の鋼管の端部に形成されたテーパー状の縮管部をこの拡管部の内側に圧入して鋼管どうしを連結したうえ、各貫通孔から内側の縮管部にそれぞれ穴開け加工を行い、その後にこれらの貫通孔間にボルトを挿通して締結することを特徴とするものである。   The present invention made in order to solve the above-mentioned problem was formed at the end of one steel pipe by forming a tapered pipe expansion portion with through holes on both sides and at the end of the other steel pipe. Taper-shaped contraction pipes are press-fitted inside the pipe expansion parts to connect the steel pipes, and each through hole is drilled into the inner contraction pipe, and then bolts are inserted between these through holes. It is characterized by being inserted and fastened.

本発明においては、拡管部及び縮管部のテーパー率を、１/１００〜１/６５とすることが好ましく、拡管部及び縮管部の軸方向長さを、鋼管直径Ｄの２〜４倍とすることが好ましい。また、穴開け加工された貫通孔に、テーパースリーブを挿入したうえでボルトを貫通させることが好ましく、前記貫通孔を、各管部の上端及び下端から鋼管直径Ｄの０．５倍以上離れた位置に設けることが好ましい。さらに各鋼管は、一方の端部に拡管部が形成され、他方の端部に縮管部が形成されたものであることが好ましい。   In the present invention, it is preferable that the taper ratio of the expanded tube portion and the contracted tube portion is 1/100 to 1/65, and the axial length of the expanded tube portion and the contracted tube portion is 2 to 4 times the steel pipe diameter D. It is preferable that Further, it is preferable to insert a taper sleeve into the drilled through hole and then penetrate the bolt, and the through hole is separated from the upper end and the lower end of each pipe portion by 0.5 times or more of the steel pipe diameter D. It is preferable to provide it at a position. Furthermore, it is preferable that each steel pipe has a pipe expansion part formed at one end part and a contraction pipe part formed at the other end part.

本発明の住宅用基礎杭の連結方法によれば、一方の鋼管の端部に形成されたテーパー状の拡管部に他方の鋼管の端部に形成された縮管部を圧入して連結するため、正確に軸心を一致させた状態で鋼管どうしを連結することができる。この圧入は基礎杭を埋設するための杭打機を用いて容易に行うことができ、圧入だけでも十分な接合強度を確保することができる。しかも本発明ではこの連結部にボルトを貫通させて締結するため、更に確実な連結が可能となり、例えば埋設された基礎杭の除去作業を行うような場合にも連結部が外れることはない。また、なお、テーパー加工によって鋼管の縮管部や拡管部の材料強度は原管よりも増加するため、十分な接合強度を確保することができる。   According to the method for connecting the foundation piles for housing according to the present invention, the contracted part formed at the end of the other steel pipe is press-fitted and connected to the tapered expanded part formed at the end of one steel pipe. It is possible to connect the steel pipes in a state where the axes are accurately aligned. This press-fitting can be easily performed using a pile driving machine for burying the foundation pile, and sufficient bonding strength can be ensured only by press-fitting. Moreover, in the present invention, since the bolt is passed through and fastened to the connecting portion, further reliable connection is possible. For example, the connecting portion is not detached even when the buried foundation pile is removed. In addition, since the material strength of the contracted portion and the expanded portion of the steel pipe is increased as compared with the original pipe by the taper processing, a sufficient joint strength can be ensured.

なお、圧入による連結の場合には圧入深さを厳密にコントロールすることができず、成り行きにより多少の変化が生ずることとなる。このため外側となる拡管部に形成したボルト挿通用の貫通孔の位置と、内側となる縮管部に形成した貫通孔の位置を一致させることは容易ではない。しかし本発明では圧入による連結を行なったのちに、各貫通孔から内側の縮管部にそれぞれドリルによる穴開け加工を行い、その後にこれらの貫通孔間にボルトを挿通して締結する方法としたので、この問題を回避することができる。よって本発明によれば溶接工を必要とせず、鋼管どうしを作業現場において容易にかつ確実に連結することができる。   In the case of connection by press-fitting, the press-fitting depth cannot be strictly controlled, and some change occurs depending on the course. For this reason, it is not easy to match the position of the through hole for inserting the bolt formed in the expanded pipe portion on the outer side with the position of the through hole formed in the contracted pipe portion on the inner side. However, in the present invention, after connecting by press-fitting, drilling is performed from each through hole to the inside contracted tube portion, and then bolts are inserted between these through holes and fastened. So this problem can be avoided. Therefore, according to the present invention, it is possible to easily and reliably connect the steel pipes at the work site without requiring a welder.

本発明の実施形態を示す連結前の斜視図である。It is a perspective view before the connection showing an embodiment of the present invention. 本発明の実施形態を示す連結後の斜視図である。It is a perspective view after the connection which shows embodiment of this invention. 連結前の要部の部分断面図である。It is a fragmentary sectional view of the principal part before connection. 連結後の要部の断面図である。It is sectional drawing of the principal part after a connection. 穴開け加工後の要部の断面図である。It is sectional drawing of the principal part after drilling. ボルトを挿通した状態の断面図である。It is sectional drawing of the state which penetrated the volt | bolt. 他の実施形態を示す斜視図である。It is a perspective view which shows other embodiment.

以下に図面を参照しつつ、本発明の実施形態を説明する。なおいずれの図面も分かり易くするために、径方向に誇張して描かれている。   Embodiments of the present invention will be described below with reference to the drawings. All drawings are exaggerated in the radial direction for easy understanding.

図１は本発明の実施形態を示す斜視図であり、１は住宅用基礎杭の最も下側の鋼管、２はその上側に連結される鋼管である。一般的に住宅用基礎杭用の鋼管１、２としては、外径が１１５〜３２０ｍｍ程度の鋼管（例えばＳＴＫ４９０）が用いられ、前記したようにその長さは３〜５ｍ程度が適当である。本実施形態では、一番下側の鋼管１の下端にはオーガドリルと呼ばれる螺旋状の羽根３が設けられており、鋼管１を杭打ち機で回転させることによって、地中に埋め込んで行く構造となっている。   FIG. 1 is a perspective view showing an embodiment of the present invention, wherein 1 is a lowermost steel pipe of a house foundation pile, and 2 is a steel pipe connected to the upper side. In general, steel pipes 1 and 2 for housing foundation piles are steel pipes having an outer diameter of about 115 to 320 mm (for example, STK490), and as described above, the length of about 3 to 5 m is appropriate. In this embodiment, a spiral blade 3 called an auger drill is provided at the lower end of the lowermost steel pipe 1, and the steel pipe 1 is buried in the ground by rotating it with a pile driving machine. It has become.

この鋼管１の上側の端部は予め工場で縮管されてテーパー状の縮管部４が形成されており、また鋼管２の下側の端部は同様に拡管されてテーパー状の拡管部５が形成されている。図２に示すように、下側の鋼管１のテーパー状の縮管部４に上側の鋼管２のテーパー状の拡管部５を被せ、杭打ち機で軸方向に押し込んで圧入することにより、鋼管１、２を作業現場において連結して行く。このため鋼管１と鋼管２との連結部には軸方向荷重の他に、大きな回転トルクが作用することとなる。   The upper end portion of the steel pipe 1 is preliminarily contracted at a factory to form a tapered contracted tube portion 4, and the lower end portion of the steel tube 2 is similarly expanded to form a tapered expanded tube portion 5. Is formed. As shown in FIG. 2, the tapered pipe section 4 of the lower steel pipe 1 is covered with the tapered pipe expansion section 5 of the upper steel pipe 2, and the steel pipe is pressed and pressed in the axial direction by a pile driving machine. Connect 1 and 2 at the work site. For this reason, in addition to the axial load, a large rotational torque acts on the connecting portion between the steel pipe 1 and the steel pipe 2.

このような圧入による連結を行なうためには、拡管部５と縮管部４とのテーパー率が一致していることが必要であり、このテーパー率は好ましくは１/１００〜１/６５の範囲とする。ここでテーパー率とは、テーパー部の（直径差／軸方向長さ）を意味する値である。テーパー率がこの範囲より小さいと効果的な接合力を得られにくくなる。逆にテーパー率がこの範囲よりも大きくなると拡管部４が押し拡げられ過ぎてその肉薄化が進むので好ましくない。テーパー率を１/６５以下にしておけば、拡管部４の肉厚減少をＪＩＳに規定される鋼管の肉厚変動の許容範囲内（−１２．５％以下）に収めることができる。   In order to perform connection by such press-fitting, it is necessary that the taper ratios of the expanded pipe portion 5 and the contracted pipe portion 4 are the same, and this taper ratio is preferably in the range of 1/100 to 1/65. And Here, the taper rate is a value that means (diameter difference / axial length) of the tapered portion. If the taper ratio is smaller than this range, it becomes difficult to obtain an effective bonding force. On the other hand, if the taper ratio is larger than this range, the tube expansion portion 4 is excessively expanded and the thickness thereof is reduced. If the taper ratio is set to 1/65 or less, the thickness reduction of the pipe expansion portion 4 can be kept within the allowable range (-12.5% or less) of the thickness fluctuation of the steel pipe specified by JIS.

また、拡管部５と縮管部４の軸方向長さは、鋼管直径Ｄの２〜４倍としておくことが好ましい。この長さが鋼管直径Ｄの２倍未満では接合長さが不足して十分な接合強度が得られず、逆に４倍を超えると拡管部５と縮管部４が長くなり、鋼管１、２のテーパー加工のコストが高くなるので好ましくない。   Moreover, it is preferable to make the axial direction length of the pipe expansion part 5 and the contraction pipe part 4 into 2-4 times the steel pipe diameter D. If this length is less than twice the steel pipe diameter D, the joining length is insufficient and sufficient joining strength cannot be obtained. Conversely, if it exceeds 4 times, the expanded pipe portion 5 and the contracted pipe portion 4 become longer. This is not preferable because the taper processing cost of No. 2 increases.

本発明者は、上記のようにテーパー加工された縮管部４を拡管部５に圧入するだけで接合面に大きな摩擦力が発生し、杭打機により上側の鋼管２に加えられる回転トルクが滑りを生ずることなく確実に下側の鋼管１に伝達されることを確認した。しかし作業現場における接合面への異物の混入などによって連結部で滑りが発生すると、杭打ち作業に支障が生ずるおそれがある。そこで本発明では連結部にボルト６を貫通させ、万一摩擦力のみでは回転トルクに耐えられなくなった場合にも、確実に下側の鋼管１に回転トルクを伝達できるようにした。   The present inventor generates a large frictional force on the joint surface by simply press-fitting the tapered tube-reduced tube portion 4 into the expanded tube portion 5, and the rotational torque applied to the upper steel tube 2 by the pile driver is reduced. It was confirmed that it was reliably transmitted to the lower steel pipe 1 without slipping. However, if slippage occurs at the connecting portion due to foreign matters mixed into the joint surface at the work site, there is a risk that the pile driving operation may be hindered. Therefore, in the present invention, the bolt 6 is passed through the connecting portion, so that the rotational torque can be reliably transmitted to the lower steel pipe 1 even if the rotational torque cannot be withstood only by the frictional force.

この目的を達成するためには、拡管部５と縮管部４との同一位置にボルト挿通用の貫通孔７を形成する必要があるが、上記した圧入方式による連結においては、圧入深さが必ずしも一定とはならず、不可避的にばらつくこととなる。このため、拡管部５と縮管部４にそれぞれボルト挿通用の貫通孔を形成しておいても、圧入後にそれらの貫通孔が一致するとは限らない。   In order to achieve this purpose, it is necessary to form a through hole 7 for inserting a bolt at the same position of the expanded pipe portion 5 and the contracted pipe portion 4. It will not necessarily be constant, but will inevitably vary. For this reason, even if the through-holes for inserting bolts are formed in the expanded tube portion 5 and the contracted tube portion 4 respectively, the through-holes do not always coincide with each other after press-fitting.

そこで本発明では、図３に示すように外側となる拡管部５のみに、貫通孔７を予め形成しておく。なお図４に示されるように、貫通孔７は中心軸を挟んだ両面に水平方向に形成しておく。圧入が完了したうえで、拡管部５の貫通孔７をガイドとして、内側の縮管部４にドリルによって穴開け加工を行い、図５のように貫通孔８を形成する。   Therefore, in the present invention, as shown in FIG. 3, the through-hole 7 is formed in advance only in the expanded pipe portion 5 on the outside. As shown in FIG. 4, the through hole 7 is formed in the horizontal direction on both sides of the central axis. After the press-fitting is completed, the through hole 7 of the pipe expansion part 5 is used as a guide, and the inner contraction pipe part 4 is drilled by a drill to form the through hole 8 as shown in FIG.

このようにして、縮管部４にも貫通孔８を形成したのち、図６に示すようにこれらの貫通孔７、８にボルト６を挿通し、反対側でナット９で締結する。しかし作業現場におけるドリルによる穴開け加工は工場における作業とは異なり、穴の内周面が真円とはならない場合も想定されるため、両側の貫通孔７、８にテーパーブッシュ１０、１０を挿入し、その内部にボルト６を挿通するようにすることが好ましい。   Thus, after forming the through-hole 8 also in the contracted tube part 4, as shown in FIG. 6, the volt | bolt 6 is inserted in these through-holes 7 and 8 and it fastens with the nut 9 on the opposite side. However, since drilling at the work site is different from the work at the factory, the inner peripheral surface of the hole may not be a perfect circle, so the tapered bushes 10 and 10 are inserted into the through holes 7 and 8 on both sides. However, it is preferable to insert the bolt 6 into the inside.

このように縮管部４と拡管部５とを貫通するボルト６を取付ければ、鋼管１と鋼管２とは強固に連結され、杭打機から加えられる回転トルクを下側の鋼管１に確実に伝達することができる。また、埋設された基礎杭を後日除去する作業を行うような場合にも、連結部が外れることはない。ボルト６の太さは、杭打機から鋼管２に加えられる回転モーメントとボルトのせん断強さとから決定される。   If the bolt 6 penetrating the contracted tube portion 4 and the expanded tube portion 5 is attached in this manner, the steel pipe 1 and the steel tube 2 are firmly connected, and the rotational torque applied from the pile driving machine is reliably supplied to the lower steel tube 1. Can be communicated to. Moreover, a connection part does not remove | deviate also when performing the operation | work which removes the buried foundation pile at a later date. The thickness of the bolt 6 is determined from the rotational moment applied to the steel pipe 2 from the pile driving machine and the shear strength of the bolt.

なお貫通孔７を設ける位置は、拡管部５の下端から０．５Ｄ（Ｄは鋼管の外径）以上とすることが好ましい。同様に、拡管部５の上端からも０．５Ｄ以上離れた位置とすることが好ましい。拡管部５の上端は縮管部４の上端とほぼ一致するから、上記の範囲に貫通孔７を設けておけば、いずれの鋼管１、２の端部からも０．５Ｄ以上離れることとなり、強度上の不安はない。   In addition, it is preferable that the position which provides the through-hole 7 shall be 0.5D (D is an outer diameter of a steel pipe) or more from the lower end of the pipe expansion part 5. FIG. Similarly, it is preferable to set the position at a distance of 0.5D or more from the upper end of the expanded pipe portion 5. Since the upper end of the expanded pipe part 5 substantially coincides with the upper end of the contracted pipe part 4, if the through hole 7 is provided in the above range, it will be separated from the end part of any steel pipe 1, 2 by 0.5D or more, There is no concern about strength.

以上の説明は一番下側の鋼管１とその直上の鋼管２との接続について行ったが、鋼管２が所定深さまで埋め込まれたら、同様の方法によりさらにその上に新たな鋼管２を連結することができる。このように鋼管を順次連結する作業を円滑に行うことができるようにするためには、図１に示したように各鋼管の一端に拡管部５を形成し、他端に縮管部４を形成しておくことが好ましい。   The above description has been made with respect to the connection between the lowermost steel pipe 1 and the steel pipe 2 immediately above it. When the steel pipe 2 is buried to a predetermined depth, a new steel pipe 2 is further connected thereon by the same method. be able to. In order to smoothly perform the operation of sequentially connecting the steel pipes in this way, as shown in FIG. 1, the expanded pipe portion 5 is formed at one end of each steel pipe, and the contracted pipe portion 4 is formed at the other end. It is preferable to form it.

なお、以上の説明では下側の鋼管１の上端に縮管部４を形成し、上側の鋼管２の下端に拡管部５を形成したが、図７に示すように、下側の鋼管１の上端に拡管部５を形成し、上側の鋼管２の下端に縮管部４を形成しても差支えない。   In the above description, the contracted tube portion 4 is formed at the upper end of the lower steel pipe 1 and the expanded portion 5 is formed at the lower end of the upper steel tube 2, but as shown in FIG. There is no problem even if the expanded pipe part 5 is formed at the upper end and the contracted pipe part 4 is formed at the lower end of the upper steel pipe 2.

以上に説明したように、本発明の住宅用基礎杭の連結方法によれば、基礎杭となる鋼管を溶接工を必要とせず、作業現場において容易にかつ確実に連結することができる利点がある。   As described above, according to the method for connecting the foundation piles for a house of the present invention, there is an advantage that the steel pipe to be the foundation pile can be easily and reliably connected at the work site without requiring a welder. .

１ 下側の鋼管
２ 上側の鋼管
３ 羽根
４ 縮管部
５ 拡管部
６ ボルト
７ 貫通孔
８ 貫通孔
９ ナット
１０ テーパーブッシュ DESCRIPTION OF SYMBOLS 1 Lower steel pipe 2 Upper steel pipe 3 Blade 4 Reduced pipe part 5 Expanded pipe part 6 Bolt 7 Through hole 8 Through hole 9 Nut 10 Taper bush

Claims (6)

一方の鋼管の端部に、貫通孔を両面に備えたテーパー状の拡管部を形成しておき、他方の鋼管の端部に形成されたテーパー状の縮管部をこの拡管部の内側に圧入して鋼管どうしを連結したうえ、各貫通孔から内側の縮管部にそれぞれ穴開け加工を行い、その後にこれらの貫通孔間にボルトを挿通して締結することを特徴とする住宅用基礎杭の連結方法。   A tapered pipe expansion section with through holes on both sides is formed at the end of one steel pipe, and a tapered pipe contraction section formed at the end of the other steel pipe is press-fitted inside this pipe expansion section. And then connecting the steel pipes to each other, drilling each through-hole from the through-holes, and then inserting bolts between the through-holes to fasten them. Concatenation method. 拡管部及び縮管部のテーパー率を、１/１００〜１/６５としたことを特徴とする請求項１に記載の住宅用基礎杭の連結方法。   The taper rate of a pipe expansion part and a contraction pipe part was set to 1/100-1/65, The connection method of the foundation pile for houses of Claim 1 characterized by the above-mentioned. 拡管部及び縮管部の軸方向長さを、鋼管直径Ｄの２〜４倍としたことを特徴とする請求項１に記載の住宅用基礎杭の連結方法。   The method for connecting the foundation piles according to claim 1, wherein the lengths in the axial direction of the expanded pipe part and the reduced pipe part are 2 to 4 times the steel pipe diameter D. 穴開け加工された貫通孔に、テーパースリーブを挿入したうえでボルトを貫通させることを特徴とする請求項１に記載の住宅用基礎杭の連結方法。   2. The method for connecting residential foundation piles according to claim 1, wherein the taper sleeve is inserted into the drilled through hole and then the bolt is passed therethrough. 前記貫通孔を、各管部の上端及び下端から鋼管直径Ｄの０．５倍以上離れた位置に設けたことを特徴とする請求項１に記載の住宅用基礎杭の連結方法。   The method of connecting residential foundation piles according to claim 1, wherein the through hole is provided at a position separated from the upper end and the lower end of each pipe portion by 0.5 times or more of the steel pipe diameter D. 各鋼管は、一方の端部に拡管部が形成され、他方の端部に縮管部が形成されたものであることを特徴とする請求項１に記載の住宅用基礎杭の連結方法。   Each steel pipe has a pipe expansion part formed at one end part and a contraction pipe part formed at the other end part.
JP2012025850A 2012-02-09 2012-02-09 Method for connecting foundation piles for housing with an outer diameter of 115 to 320 mm Active JP5831874B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012025850A JP5831874B2 (en) 2012-02-09 2012-02-09 Method for connecting foundation piles for housing with an outer diameter of 115 to 320 mm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012025850A JP5831874B2 (en) 2012-02-09 2012-02-09 Method for connecting foundation piles for housing with an outer diameter of 115 to 320 mm

Publications (2)

Publication Number Publication Date
JP2013163890A true JP2013163890A (en) 2013-08-22
JP5831874B2 JP5831874B2 (en) 2015-12-09

Family

ID=49175413

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012025850A Active JP5831874B2 (en) 2012-02-09 2012-02-09 Method for connecting foundation piles for housing with an outer diameter of 115 to 320 mm

Country Status (1)

Country Link
JP (1) JP5831874B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017110441A (en) * 2015-12-17 2017-06-22 新日鐵住金株式会社 Joining structure of steel pipe and joining method of steel pipe
JP2017145619A (en) * 2016-02-17 2017-08-24 新日鐵住金株式会社 Different diameter steel pipe pile
JP2017190666A (en) * 2016-04-07 2017-10-19 日之出水道機器株式会社 Joining structure
WO2018214782A1 (en) * 2017-05-24 2018-11-29 希姆莱斯（大连）科技有限公司 Process for preparing spheroidal graphite cast iron screw pile and spheroidal graphite cast iron screw pile prepared using said process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017110441A (en) * 2015-12-17 2017-06-22 新日鐵住金株式会社 Joining structure of steel pipe and joining method of steel pipe
JP2017145619A (en) * 2016-02-17 2017-08-24 新日鐵住金株式会社 Different diameter steel pipe pile
JP2017190666A (en) * 2016-04-07 2017-10-19 日之出水道機器株式会社 Joining structure
WO2018214782A1 (en) * 2017-05-24 2018-11-29 希姆莱斯（大连）科技有限公司 Process for preparing spheroidal graphite cast iron screw pile and spheroidal graphite cast iron screw pile prepared using said process

Also Published As

Publication number Publication date
JP5831874B2 (en) 2015-12-09

Similar Documents

Publication Publication Date Title
US7854451B2 (en) Anchor pile coupling system
US7510350B2 (en) Helical anchor with hardened coupling sections
US8079781B2 (en) Push pier assembly with hardened coupling sections
JP6242527B1 (en) Steel pipe joint structure for pile construction
JP5831874B2 (en) Method for connecting foundation piles for housing with an outer diameter of 115 to 320 mm
US11525232B2 (en) Modular foundation support systems and methods including shafts with interlocking torque transmitting couplings
US20210254298A1 (en) Modular helical pier foundation support systems, assemblies and methods with snap-lock couplings
JP4341755B2 (en) Connection member for rotary press-fit pile
JP5053828B2 (en) Joint structure
US8454057B2 (en) Threaded end connector attachment for an end of a tube
JP5140114B2 (en) Joining method of ready-made piles, Joined hardware of ready-made piles
KR200480999Y1 (en) Coulper of steel pipe pile for rotational intrusion and pullout
KR102164316B1 (en) micro-pile boring casings pipe for one shot grouting
JP3115424U (en) Steel pipe pile connection structure
EP2256251B1 (en) Pile and pile joint
JP5797256B2 (en) Thin-walled steel pipe pile joint structure
JP2013112953A (en) Steel pipe pile connection structure
JP2015071870A (en) Press-fitting pipe joint method and press-fitting pipe caulking device for use in the same
JP2008308856A (en) Steel pipe pile for under-pinning
JP2010168789A (en) Mechanical coupling for steel pipe pile
JP2004270204A (en) Joint structure of steel pipe and joining method of steel pipe
JP6854699B2 (en) Joint structure and pile body of pile constituent members, joint method of pile constituent members and manufacturing method of pile body
JP6470699B2 (en) Pile connection structure
JP4986674B2 (en) Pile connector and pile using the connector
JP7420123B2 (en) Threaded joints, steel pipes with threaded joints, structures, construction methods for structures, landslide prevention piles, construction methods for landslide prevention piles, design methods for threaded joints, manufacturing methods for threaded joints, manufacturing methods for steel pipes with threaded joints

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20140325

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20141218

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150106

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150304

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150714

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150907

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20150929

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20151020

R150 Certificate of patent or registration of utility model

Ref document number: 5831874

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350