JPH069063Y2 - Prestressed concrete pile - Google Patents
Prestressed concrete pileInfo
- Publication number
- JPH069063Y2 JPH069063Y2 JP1989068189U JP6818989U JPH069063Y2 JP H069063 Y2 JPH069063 Y2 JP H069063Y2 JP 1989068189 U JP1989068189 U JP 1989068189U JP 6818989 U JP6818989 U JP 6818989U JP H069063 Y2 JPH069063 Y2 JP H069063Y2
- Authority
- JP
- Japan
- Prior art keywords
- pile
- diameter hole
- fluid injection
- pipe
- end plate
- 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
- Piles And Underground Anchors (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、中掘り工法によって沈設する杭の外周と掘削
穴との空隙部に、杭体のコンクリート部に埋設した流体
注入導管を介して、杭の先端部から噴射せしめた注入材
で充填するようにしたプレストレストコンクリート杭、
特にその継手部の構造に関するものである。[Detailed Description of the Invention] [Industrial field of application] The present invention provides a fluid injection conduit embedded in a concrete portion of a pile body in a space between an outer periphery of a pile to be sunk by a medium excavation method and an excavation hole. , Prestressed concrete piles filled with injection material injected from the tip of the pile,
In particular, it relates to the structure of the joint portion.
従来、この種コンクリート杭として、特開昭５６−６４
０１８号公報、特開昭５８−２０７４１５号公報、実公
昭６２−１３１２号公報、実公昭６３−１９３９４号公
報及び実開昭６４−６３３号公報等に開示された発明等
があるが、下杭と中間杭及び中間杭と上杭との接続に関
する構造については開発されていない。Conventionally, as this type of concrete pile, Japanese Patent Application Laid-Open No. 56-64
No. 018, JP-A-58-207415, JP-B-62-1312, JP-B-63-19394, JP-B-64-633, etc. The structure for connection between the intermediate pile and the intermediate pile and the upper pile has not been developed.
したがって、このような杭同志を接続する場合に、従来
は、端板同志を面接し、これを擦り合わせながら上下両
流体注入導管の開口部を合致させる調整をしていたが、
端板は平滑面であるため流体注入導管の開口部同志を合
致させることは難しく、作動能率が悪いといった問題点
があった。Therefore, when connecting such piles, conventionally, the end plates were face-to-face, and the openings of the upper and lower fluid injection conduits were adjusted by rubbing them together.
Since the end plate is a smooth surface, it is difficult to match the openings of the fluid injection conduit with each other, resulting in poor operation efficiency.
本考案は、上記のような従来の問題点を解決するために
成されたもので、接続する上・下両杭の位置決めが容易
な杭を提供することを目的としたものであり、その要旨
は、杭体のコンクリート部に流体注入導管を埋設すると
ゝもに、端板に形成したＰＣ鋼棒の膨大部係止用の小径
孔と連通する膨大部挿入用の大径孔部にパイプを固定
し、該パイプに前記流体注入導管の少なくとも一端部を
摺動可能となるよう嵌合により連結するとゝもに、前記
大径孔の残余の複数大径孔内にガイドピンを夫々挿入固
定してその先端を前記端板から突出せしめたことを特徴
とするプレストレストコンクリート杭にある。The present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to provide a pile in which the upper and lower piles to be connected can be easily positioned. When burying the fluid injection conduit in the concrete part of the pile, the pipe is inserted in the large diameter hole for inserting the enlarged part that communicates with the small diameter hole for locking the enlarged part of the PC steel rod formed on the end plate. By fixing and connecting at least one end of the fluid injection conduit to the pipe by fitting so as to be slidable, the guide pins are respectively inserted and fixed in the remaining plural large diameter holes of the large diameter hole. In the prestressed concrete pile, the tip of the lever is projected from the end plate.
以下、本考案を第１図乃至第３図に示す実施例により説
明する。なお、第１図は本考案の使用状態を示す一部省
略縦断面図で、第２図は同要部拡大断面図、第３図は杭
の継手部の拡大分解斜視図である。The present invention will be described below with reference to the embodiments shown in FIGS. FIG. 1 is a partially omitted vertical sectional view showing a usage state of the present invention, FIG. 2 is an enlarged sectional view of a main portion thereof, and FIG. 3 is an enlarged exploded perspective view of a joint portion of a pile.
図において、１はプレストレストコンクリート杭で、下
杭１Ａと上杭１Ｂのコンクリート部２には、軸筋である
ＰＣ鋼棒３と、流体注入導管４がそれぞれ埋設されてい
る。In the figure, reference numeral 1 is a prestressed concrete pile, and a PC steel rod 3 that is an axial reinforcement and a fluid injection conduit 4 are embedded in the concrete portions 2 of the lower pile 1A and the upper pile 1B, respectively.
５はプレストレストコンクリート杭１の上下両端に装着
された端板で、通常使用されているものと同様に、同心
円上において所定間隔毎に複数個の貫通孔６が形成され
ている。この貫通孔６は、前記ＰＣ鋼棒３の端部に形成
した膨大部３ａが挿入自在で、且つＰＣ鋼棒３にテンシ
ョンを付与する際に使用するボルトを螺合するための雌
ネジ７ａを刻設した大径孔７と、前記ＰＣ鋼棒３の前記
膨大部３ａが係止される小径孔８とを連通した全体とし
て鍵穴形状をしており、各貫通穴６は小径孔８が同一方
向に向けて配列されている。なお、図中９は前記大径穴
８に沿って形成した皿溝であり、１０はこの皿溝９に嵌
合するＯパッキングである。１１は短長なパイプで、そ
の基部はナット１２を介して前記端板５の大径孔７部に
溶着固定され、他方前記パイプ１１の先端は前記流体注
入導管４の一端と嵌合して、流体注入導管４と摺動可能
となるように連結されている。Reference numeral 5 denotes end plates attached to the upper and lower ends of the prestressed concrete pile 1, and like the commonly used ones, a plurality of through holes 6 are formed at predetermined intervals on a concentric circle. The through hole 6 has an enlarged portion 3a formed at the end of the PC steel rod 3 which can be inserted therein, and has a female screw 7a for screwing a bolt used when applying tension to the PC steel rod 3. The engraved large-diameter hole 7 and the small-diameter hole 8 into which the enlarged portion 3a of the PC steel rod 3 is connected have a keyhole shape as a whole, and each through-hole 6 has the same small-diameter hole 8. It is arranged in the direction. In the figure, 9 is a countersunk groove formed along the large-diameter hole 8, and 10 is an O-packing fitted in the countersunk groove 9. Reference numeral 11 denotes a short pipe, the base portion of which is welded and fixed to the large-diameter hole portion 7 of the end plate 5 through a nut 12, while the tip of the pipe 11 is fitted to one end of the fluid injection conduit 4. , Is fluidly connected to the fluid injection conduit 4.
１３は下杭１Ａの拡大部Ｒの直上外周面に固定されたパ
イプリングで、前記流体注入導管４の下端と連結されて
おり、このパイプリング１３には所定間隔毎に上向きの
噴射口１３ａが多数形成されている。Reference numeral 13 is a pipe ring fixed to the outer peripheral surface immediately above the enlarged portion R of the lower pile 1A, and is connected to the lower end of the fluid injection conduit 4. The pipe ring 13 has upward injection ports 13a at predetermined intervals. Many are formed.
１４はガイドピンで、前記パイプ１１を装着した大径孔
７を除く複数個の大径孔７内に挿入固定されており、大
径孔７に挿入し固定したときに、その上端円錐状部１４
ａは端板５の上面より突出した状態で固定されている。
尚、図中１５は上杭１Ｂの上部端板５に固定した杭頭架
台で、１６はその取付けボルト、１７は流体注入口であ
る。Reference numeral 14 denotes a guide pin, which is inserted and fixed in a plurality of large-diameter holes 7 except the large-diameter hole 7 in which the pipe 11 is mounted, and when it is inserted and fixed in the large-diameter hole 7, its upper end conical portion 14
a is fixed in a state of protruding from the upper surface of the end plate 5.
In the figure, 15 is a pile head mount fixed to the upper end plate 5 of the upper pile 1B, 16 is its mounting bolt, and 17 is a fluid injection port.
而して、アースオーガにより地盤を掘削し乍ら先ず下杭
１Ａをこの掘削穴内に沈下させ、下杭１Ａを所定位置ま
で沈設せしめた後、端板５の大径孔７内に直径を通る中
心線に対し左右非対称となるようガイドピン１４を複数
個挿入し固定する。Then, by excavating the ground with an earth auger, the lower pile 1A is first sunk into this excavation hole, and the lower pile 1A is submerged to a predetermined position, and then the diameter is passed through the large diameter hole 7 of the end plate 5. A plurality of guide pins 14 are inserted and fixed so as to be asymmetric with respect to the center line.
次に、上杭１Ｂをリーダー等により吊り上げ、上・下両
杭１Ａ，１Ｂのパイプ１１を装着した大径孔７部の位置
を目測により設定し、上杭１Ｂを下杭１Ａ上に降ろす。Next, the upper pile 1B is lifted by a leader or the like, the positions of the large diameter holes 7 where the pipes 11 of the upper and lower piles 1A and 1B are mounted are set by visual inspection, and the upper pile 1B is lowered onto the lower pile 1A.
そして、下杭１Ａの端板５から突出しているガイドピン
１４と、上杭１Ｂの大径孔７とが合致するように上杭１
Ｂを回転微調整することにより、ガイドピン１４の上端
円錐状部１４ａは上杭１Ｂの大径孔７内に挿入され、端
板５同志は前記大径孔７の皿溝９に嵌めたＯリングパッ
キング１０を介して面接し接合される。Then, the guide pin 14 protruding from the end plate 5 of the lower pile 1A and the large-diameter hole 7 of the upper pile 1B are matched with each other.
By finely adjusting B, the upper conical portion 14a of the guide pin 14 is inserted into the large diameter hole 7 of the upper pile 1B, and the end plates 5 are fitted into the countersink 9 of the large diameter hole 7. They are face-to-face and joined via the ring packing 10.
これにより、同時に、上・下両杭１Ａ，１Ｂに装着され
た夫々のパイプ１１の開口部同志も完全に合致するの
で、上・下両杭１Ａ，１Ｂに夫々装着された前記流体注
入導管４同志は、大径孔７の皿溝９に嵌めたＯパッキン
グ１０を介して水密的に連結される。そして、更に両者
の端板５をその接合部外周において溶接して一体構造と
する。As a result, at the same time, the openings of the pipes 11 mounted on the upper and lower piles 1A and 1B are completely matched, so that the fluid injection conduits 4 mounted on the upper and lower piles 1A and 1B, respectively. The two are watertightly connected to each other via an O packing 10 fitted in a countersink 9 of the large diameter hole 7. Then, the two end plates 5 are welded to each other on the outer circumference of the joint to form an integrated structure.
本考案に係るプレストレストコンクリート杭は上記のよ
うに、杭体のコンクリート部に流体注入導管を埋設する
とゝもに、端板に形成したＰＣ鋼棒の膨大部係止用の小
径孔と連通する膨大部挿入用の大径孔部にパイプを固定
し、該パイプに前記流体注入導管の少なくとも一端部を
摺動可能となるよう嵌合により連結するとゝもに、前記
大径孔の残余の複数大径孔内にガイドピンを夫々挿入固
定してその先端を前記端板から突出せしめた構成である
から、上・下両杭の接続する位置決めが容易であり、こ
れにより同時に、上・下両杭の流体注入導管４同志の接
続を行うことが出来るので、作業能率が向上する。ま
た、従来から使用されているプレストレスト用の端板を
そのまゝ使用できるので、全体として廉価に提供できる
といった諸効果がある。In the prestressed concrete pile according to the present invention, as described above, when the fluid injection conduit is buried in the concrete portion of the pile body, the large diameter communicating with the small diameter hole for locking the large portion of the PC steel rod formed on the end plate is communicated. The pipe is fixed to the large-diameter hole for inserting the portion, and at least one end of the fluid injection conduit is slidably connected to the pipe so that a plurality of remaining large-diameter holes remain. Since the guide pins are inserted and fixed in the diameter holes and the tips of the guide pins are projected from the end plates, the upper and lower piles can be easily connected and positioned, and at the same time, the upper and lower piles can be simultaneously connected. Since the fluid injection conduits 4 can be connected to each other, the work efficiency is improved. In addition, since the prestressed end plate that has been conventionally used can be used as it is, there are various effects that it can be provided at a low price as a whole.
第１図は本考案の使用状態を示す一部省略縦断面図、第
２図は同要部拡大断面図、第３図は杭の継手部の拡大分
解斜視図である。 １……プレストレストコンクリート杭、１Ａ……下杭、
１Ｂ……上杭、２……コンクリート部、３……ＰＣ鋼
棒、４……流体注入導管、５……端板、７……大径孔、
８……小径孔、１０……Ｏパッキング、１１……パイ
プ、１４……ガイドピン。FIG. 1 is a partially omitted vertical cross-sectional view showing a usage state of the present invention, FIG. 2 is an enlarged cross-sectional view of an essential part of the same, and FIG. 3 is an enlarged exploded perspective view of a joint portion of a pile. 1 …… Prestressed concrete pile, 1A …… Lower pile,
1B: Upper pile, 2 ... Concrete part, 3 ... PC steel rod, 4 ... Fluid injection conduit, 5 ... End plate, 7 ... Large diameter hole,
8 ... small hole, 10 ... O packing, 11 ... pipe, 14 ... guide pin.
Claims (1)
設するとゝもに、端板に形成したＰＣ鋼棒の膨大部係止
用の小径孔と連通する膨大部挿入用の大径孔部にパイプ
を固定し、該パイプに前記流体注入導管の少なくとも一
端部を摺動可能となるよう嵌合により連結するとゝも
に、前記大径孔の残余の複数大径孔内にガイドピンを夫
々挿入固定してその先端を前記端板から突出せしめたこ
とを特徴とするプレストレストコンクリート杭。1. A large-diameter hole portion for inserting an enlarging portion which is communicated with a small-diameter hole for locking an enlarging portion of a PC steel rod formed on an end plate when a fluid injection conduit is embedded in a concrete portion of a pile body. The pipe is fixed to the pipe, and at least one end of the fluid injection conduit is slidably connected to the pipe, and guide pins are respectively provided in the remaining large diameter holes of the large diameter hole. A prestressed concrete pile, characterized in that it is inserted and fixed, and its tip is projected from the end plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989068189U JPH069063Y2 (en) | 1989-06-12 | 1989-06-12 | Prestressed concrete pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989068189U JPH069063Y2 (en) | 1989-06-12 | 1989-06-12 | Prestressed concrete pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0312925U JPH0312925U (en) | 1991-02-08 |
| JPH069063Y2 true JPH069063Y2 (en) | 1994-03-09 |
Family
ID=31602411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989068189U Expired - Lifetime JPH069063Y2 (en) | 1989-06-12 | 1989-06-12 | Prestressed concrete pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH069063Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002194737A (en) * | 2000-12-26 | 2002-07-10 | Nippon Koatsu Concrete Kk | Concrete pile and its connection nipple |
| WO2014188608A1 (en) * | 2013-05-21 | 2014-11-27 | 日本ヒューム株式会社 | Joint structure for posts |
| JP2017133240A (en) * | 2016-01-28 | 2017-08-03 | 三谷セキサン株式会社 | Pipe device for heat exchange, existing pile that contains pipe for heat exchange, embedding method of pipe for heat exchange using existing pile |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5327090U (en) * | 1976-08-13 | 1978-03-08 | ||
| JPH05327483A (en) * | 1991-04-05 | 1993-12-10 | Nec Corp | Static dividing circuit |
| JPH04308969A (en) * | 1991-04-05 | 1992-10-30 | Toshiba Corp | Arithmetic device |
| JP2556035Y2 (en) * | 1991-08-19 | 1997-12-03 | 積水ハウス株式会社 | Roof structure to prevent snow from rolling |
| JP2566488Y2 (en) * | 1991-08-19 | 1998-03-25 | 積水ハウス株式会社 | Snow clasps on the side of the aisle and structure to prevent unwinding |
| JP2566487Y2 (en) * | 1991-08-19 | 1998-03-25 | 積水ハウス株式会社 | Roof structure for snow retaining |
| JP2556036Y2 (en) * | 1991-08-19 | 1997-12-03 | 積水ハウス株式会社 | Roof structure to prevent snow from rolling |
| WO2016132648A1 (en) * | 2015-02-17 | 2016-08-25 | 株式会社クボタ | Joint mechanism and connection method for steel pipe |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4820411U (en) * | 1971-07-14 | 1973-03-08 | ||
| JPS49378U (en) * | 1972-04-08 | 1974-01-05 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60139837U (en) * | 1984-02-27 | 1985-09-17 | 株式会社 藤井重機 | Chucking members for foundation piles |
-
1989
- 1989-06-12 JP JP1989068189U patent/JPH069063Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4820411U (en) * | 1971-07-14 | 1973-03-08 | ||
| JPS49378U (en) * | 1972-04-08 | 1974-01-05 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002194737A (en) * | 2000-12-26 | 2002-07-10 | Nippon Koatsu Concrete Kk | Concrete pile and its connection nipple |
| WO2014188608A1 (en) * | 2013-05-21 | 2014-11-27 | 日本ヒューム株式会社 | Joint structure for posts |
| JP2014227688A (en) * | 2013-05-21 | 2014-12-08 | 日本ヒューム株式会社 | Joint part structure of pile |
| JP2017133240A (en) * | 2016-01-28 | 2017-08-03 | 三谷セキサン株式会社 | Pipe device for heat exchange, existing pile that contains pipe for heat exchange, embedding method of pipe for heat exchange using existing pile |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0312925U (en) | 1991-02-08 |
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