JP3564720B2

JP3564720B2 - Connecting pile

Info

Publication number: JP3564720B2
Application number: JP05593594A
Authority: JP
Inventors: 好伸木谷
Original assignee: Mitani Sekisan Co Ltd
Current assignee: Mitani Sekisan Co Ltd
Priority date: 1994-03-25
Filing date: 1994-03-25
Publication date: 2004-09-15
Anticipated expiration: 2019-09-15
Also published as: JPH07259081A

Description

【０００１】
【産業上の利用分野】
この発明は、上杭と下杭とを連結する連結杭に関する。
【０００２】
【従来の技術】
従来、上杭と下杭とを当接し、当接した上杭と下杭とに嵌合用のリングなどを嵌挿して連結杭を形成していた。
【０００３】
【発明が解決しようとする課題】
前記従来の技術では、杭の連結部分の外周にリングが嵌装されるので、該部の軸径が大きくなる問題点があった。
【０００４】
【課題を解決するための手段】
然るにこの発明は嵌合筒とこれに嵌挿できる嵌合突部とで連結したので、前記問題点を解決した。
【０００５】
即ちこの発明は、
(1) 端板を有する下杭と端板を有する上杭とを連結してなる連結杭において、
(2) 前記下杭の上端部の端板又は前記上杭の下端部の端板のうちのいずれか一方の端板に、周壁に上下方向に長い長孔を穿設した嵌合筒を固定し、
該嵌合筒は、上方に開口し、長孔を穿設した周壁と前記端板の螺孔に対応したボルト孔を穿設した底部とを有する。前記底部のボルト孔は、前記周壁の内側に位置し、前記ボルト孔に挿通したボルトを前記螺孔に螺合して、前記端板と嵌合筒とを固定する。
(3) 前記下杭の上端部の端板又は前記上杭の下端部の端板のうちの他方の端板に、前記嵌合筒に嵌挿できる嵌合突部を固定し、
該嵌合突部は、前記嵌合筒の長孔と連通できる上下方向に長い長孔を穿設した周壁と、前記端板の螺孔に対応してボルト孔を穿設した鍔部とを有する。前記鍔部のボルト孔は前記周壁の内側に位置し、前記ボルト孔に挿通したボルトを前記螺孔に螺合して、前記端板と嵌合突部とを固定する。
(4) 前記嵌合筒に嵌合突部を嵌挿し、前記両長孔にピンを嵌挿して前記上杭と下杭とを連結したことを特徴とする連結杭である。
【０００６】
また、嵌合筒の周壁外面を、下杭あるいは上杭の周壁外面と面一に形成した連結杭である。
【０００７】
【作用】
嵌合筒に嵌合突部を嵌挿したので、嵌合部分が外面に露出しないと共に嵌合部分の口径が嵌合筒の口径となる。長孔にピンを挿入して連結したので、孔のずれを吸収できる。
【０００８】
【実施例】
図面に基づきこの発明の実施例を説明する。
【０００９】
上方に開口した筒状の嵌合筒本体１７の底部１８に、取り付ける杭１の端板２の中央開口部２ａ（杭１の中空部１ａ）に対応した開口部１４を穿設する。前記嵌合筒本体１７の底部１８に、取り付ける杭１の端板２の螺孔２ｂに対応したボルト孔１９、１９を穿設する。前記嵌合筒本体１７の周壁４に、上下方向に長い長孔５、５を直径対称な位置に穿設する。以上のようにして、嵌合筒３を構成する（図４）。
【００１０】
前記嵌合筒３に嵌挿できる形状で、有底筒状の嵌合突部本体２０の周壁９に、前記嵌合筒３の長孔５、５に対応した長孔１０、１０を上下方向に穿設する。前記嵌合突部本体２０の底部２１に、取り付ける杭６の端板７の中央開口部７ａ（杭６の中空部６ａ）に対応した開口部１５を穿設する。また、前記嵌合突部本体２０の開口側２０ｂの端部に、取り付ける杭６の端板７に当接でき、かつ取り付ける杭６の端板７の中央開口部７ａに対応した開口部２３を有する、環状の鍔部２２を連設する。前記鍔部２２は、取り付ける杭６の端板７の螺孔７ｂに対応して、ボルト孔２４、２４を穿設してある。以上のようにして嵌合突部８を構成する（図４）。
【００１１】
前記における嵌合筒３と嵌合突部８とで、杭の接続具２５を構成する（図４）。
【００１２】
次に、杭の接続具２５を使用した連結杭の構築について説明する。
【００１３】
上端部を地上に出して埋設した下杭１の上端部で端板２の上面に、前記嵌合筒３の底部を当接し、嵌合筒３のボルト孔１９に挿通したボルト２６を端板２の螺孔２ｂに螺合して、端板２に嵌合筒３を固定する（図１（ａ））。
【００１４】
前記下杭１の上方に支持した上杭６の下端部で、端板７の下面に、前記嵌合突部８の鍔部２２を当接し、嵌合突部８のボルト孔２４に挿通したボルト２６を端板７の螺孔７ｂに螺合して、端板７に嵌合突部８を固定する（図１（ａ））。
【００１５】
下杭１の上方から、上杭６を降下させて（図１（ａ））、下杭１の嵌合筒３に上杭６の嵌合突部８を嵌挿する（図１（ｂ））。この際、嵌合筒３の長孔５、５と嵌合突部８の長孔１０、１０とを連通させる。続いて、連通した長孔５、１０内にピン１１を嵌挿して、下杭１と上杭６とを連結して連結杭１２を構成する（図１（ｃ））。この際、ピン１１を挿入する孔は、上下に長い長孔５、１０としたので、上下方向の多少のずれを吸収できると共に、前記嵌合筒３の長孔５を下目に、前記嵌合突部８の長孔１０を下目に形成すれば、嵌合筒３と嵌合突部８とを締結できる。また、ピン１１を楔状とすれば、より強く締結できる。
【００１６】
前記において、長孔５、１０の数は１つあるいは複数のいずれでも可能である。複数の場合には、上下に並列して配置することもできる。いずれの場合でも長孔１０は長孔５に対応して設ける。また、ピン１１は、全てのあるいは一部の長孔５、１０に挿通する。
【００１７】
前記実施例において、打撃を加えて連結杭１２を埋設する場合には、嵌合筒３と嵌合突部８とは、嵌合筒３の底部１８の内面と嵌合突部８の先端側の外面とが密着して嵌合することが望ましい。この際には、嵌合筒３の底部１８は肉厚を厚くし、ボルト２６の頭部が該肉厚内に収容されるようにする（図示していない）。
【００１８】
また、前記実施例において、下杭１に嵌合筒３を固定し、上杭６に嵌合突部８を固定したが、逆に、上杭６に嵌合筒３を固定して下杭１に嵌合突部８を固して（図２（ａ））、下杭１の嵌合突部８に、上杭６の嵌合筒３を嵌装して、ピン１１を長孔５、１０に嵌挿して連結杭１３を構成することもできる（図２（ｂ））。
【００１９】
また、前記実施例において、嵌合筒３は底部に開口部１４を、嵌合突部８の先端側に開口部１５を夫々穿設したので、杭１、６の中空部１ａ、６ａが上下に亘って連通できるが、開口部１４、１５は穿設しないこともできる（図３（ａ））。この場合も前記実施例と同様に、嵌合筒３に嵌合突部６を嵌挿して、ピン１１、１１を長孔５、１０に嵌挿して、連結杭１６を構成する（図３（ｂ））。
【００２０】
また、前記実施例において、嵌合突部８は有底筒状としたが、嵌合筒３に嵌挿できれば、中実でも可能である（図示していない）。
【００２１】
また、前記における嵌合筒３と嵌合突部８の周壁の水平断面形状は円、正方形、六角形等その形状は問わない。
【００２２】
また、前記実施例において、長孔１０は透孔としたが、溝穴とすることもできる（図示していない）。
【００２３】
【発明の効果】
上杭と下杭とを、嵌合筒とこれに嵌挿できる嵌合突部とで連結したので、連結部分の軸径が大きくなることもなく、また連結部分が表面に露出しないので、連結杭を埋設している途中で外力により連結部分が破壊されることを防止でき、信頼性の高い連結杭とすることができる効果がある。また、軸方向に長い長孔に、ピンを挿入して止めたので、多少の孔の位置のずれを吸収でき、また溶接作業を不要とするので、杭の連結作業を簡略化できる効果がある。
【図面の簡単な説明】
【図１】この発明の実施例の縦断面図で、（ａ）は接続具を固定した上杭及び下杭、（ｂ）は嵌合状態、（ｃ）は連結後の連結杭を表す。
【図２】この発明の他の実施例の縦断面図で、（ａ）は接続具を固定した上杭及び下杭、（ｂ）は連結後の連結杭を表す。
【図３】この発明の他の実施例の縦断面図で、（ａ）は接続具を固定した上杭及び下杭、（ｂ）は連結後の連結杭を表す。
【図４】この発明の接続具の拡大縦断面図である。
【符号の説明】
１下杭
２端板
３嵌合筒
４周壁（嵌合筒）
５長孔
６上杭
７端板
８嵌合突部
１０長孔
１１ピン
１２連結杭
１３連結杭
１６連結杭
１７嵌合筒本体
１８底部
１９ボルト孔
２０嵌合突部本体
２１底部
２２鍔部
２４ボルト孔
２５接続具
２６ボルト
２７連結杭[0001]
[Industrial applications]
The present invention relates to a connection pile for connecting an upper pile and a lower pile.
[0002]
[Prior art]
Conventionally, an upper stake and a lower stake have been abutted, and a connection ring or the like has been inserted into the abutted upper stake and lower stake to form a connection stake.
[0003]
[Problems to be solved by the invention]
In the above-mentioned conventional technique, a ring is fitted around the outer periphery of the connection portion of the pile, so that there is a problem that the shaft diameter of the portion is increased.
[0004]
[Means for Solving the Problems]
However, the present invention solves the above-mentioned problem because the fitting tube and the fitting protrusion that can be fitted into the fitting tube are connected to each other.
[0005]
That is, the present invention
(1) In a connection pile formed by connecting a lower pile having an end plate and an upper pile having an end plate ,
(2) in one end plate one of the end plates of the lower end portion of the end plate or the upper pile at the upper end of the lower pile, fixing the fitting tube bored long elongated hole vertically to the peripheral wall And
The fitting cylinder has a peripheral wall that is open upward and has a long hole formed therein, and a bottom portion having a bolt hole corresponding to a screw hole of the end plate. The bolt hole at the bottom is located inside the peripheral wall, and a bolt inserted into the bolt hole is screwed into the screw hole to fix the end plate and the fitting tube.
(3) at the other end plate of the end plate of the lower end portion of the end plate or the upper pile at the upper end of the lower pile, to secure the mating projection that can fitted into the fitting tube,
The fitting protrusion has a peripheral wall provided with a vertically long hole which can communicate with the long hole of the fitting cylinder, and a flange provided with a bolt hole corresponding to a screw hole of the end plate. Have. A bolt hole of the flange is located inside the peripheral wall, and a bolt inserted into the bolt hole is screwed into the screw hole to fix the end plate and the fitting projection.
(4) A connection pile, wherein a fitting projection is fitted into the fitting cylinder, and a pin is fitted into both the long holes to connect the upper pile and the lower pile .
[0006]
Further, the connecting pile is formed such that the outer peripheral surface of the fitting tube is flush with the outer peripheral surface of the lower pile or the upper pile .
[0007]
[Action]
Since the fitting projection is fitted into the fitting cylinder, the fitting part is not exposed to the outer surface, and the diameter of the fitting part becomes the diameter of the fitting cylinder. Since the pins are inserted into the elongated holes and connected, the displacement of the holes can be absorbed.
[0008]
【Example】
An embodiment of the present invention will be described with reference to the drawings.
[0009]
An opening 14 corresponding to the central opening 2a (the hollow portion 1a of the pile 1) of the end plate 2 of the pile 1 to be mounted is formed in the bottom portion 18 of the cylindrical fitting tube main body 17 that is opened upward. Bolt holes 19, 19 corresponding to the screw holes 2b of the end plate 2 of the pile 1 to be mounted are formed in the bottom portion 18 of the fitting cylinder main body 17. On the peripheral wall 4 of the fitting cylinder main body 17, long holes 5, 5 long in the up-down direction are formed at diametrically symmetric positions. The fitting tube 3 is configured as described above (FIG. 4 ).
[0010]
Elongate holes 10, 10 corresponding to the long holes 5, 5 of the fitting cylinder 3 are formed on the peripheral wall 9 of the fitting projection main body 20 having a bottomed cylindrical shape in a shape that can be inserted into the fitting cylinder 3. Drill at An opening 15 corresponding to the central opening 7a (hollow portion 6a of the pile 6) of the end plate 7 of the pile 6 to be mounted is formed in the bottom 21 of the fitting projection main body 20. Further, an opening 23 which can be brought into contact with the end plate 7 of the pile 6 to be attached and which corresponds to the central opening 7a of the end plate 7 of the pile 6 to be attached is provided at the end of the fitting projection main body 20 on the opening side 20b. The annular flange 22 is continuously provided. The flange 22 has bolt holes 24, 24 corresponding to the screw holes 7 b of the end plate 7 of the mounting pile 6. The fitting projection 8 is configured as described above (FIG. 4 ).
[0011]
The fitting tube 3 and the fitting projections 8 constitute a connection device 25 for a pile (FIG. 4 ).
[0012]
Next, the construction of the connection pile using the pile connection tool 25 will be described.
[0013]
The bottom end of the fitting tube 3 is brought into contact with the upper surface of the end plate 2 at the upper end of the lower pile 1 buried with the upper end raised above the ground. The fitting tube 3 is fixed to the end plate 2 by screwing into the second screw hole 2b (FIG. 1A).
[0014]
At the lower end of the upper pile 6 supported above the lower pile 1, the flange 22 of the fitting projection 8 abuts on the lower surface of the end plate 7, and is inserted into the bolt hole 24 of the fitting projection 8. The bolt 26 is screwed into the screw hole 7b of the end plate 7, and the fitting projection 8 is fixed to the end plate 7 (FIG. 1A).
[0015]
The upper pile 6 is lowered from above the lower pile 1 (FIG. 1A), and the fitting protrusion 8 of the upper pile 6 is inserted into the fitting cylinder 3 of the lower pile 1 (FIG. 1B). ). At this time, the long holes 5, 5 of the fitting cylinder 3 and the long holes 10, 10 of the fitting projection 8 are communicated. Subsequently, the pin 11 is inserted into the communicating long holes 5 and 10, and the lower pile 1 and the upper pile 6 are connected to form a connection pile 12 (FIG. 1 (c)). At this time, the holes into which the pins 11 are inserted are elongated vertically long holes 5 and 10, so that a slight displacement in the vertical direction can be absorbed and the elongated hole 5 of the fitting cylinder 3 is positioned below the fitting. If the long hole 10 of the joint part 8 is formed in the lower eye, the fitting cylinder 3 and the fitting part 8 can be fastened. If the pin 11 is formed in a wedge shape, it can be tightened more strongly.
[0016]
In the above, the number of the long holes 5 and 10 may be one or more. In the case of a plurality, they can be arranged vertically in parallel. In any case, the long holes 10 are provided corresponding to the long holes 5. The pins 11 are inserted into all or some of the long holes 5 and 10.
[0017]
In the above embodiment, when the connecting pile 12 is buried by applying a blow, the fitting tube 3 and the fitting protrusion 8 are formed between the inner surface of the bottom portion 18 of the fitting tube 3 and the tip side of the fitting protrusion 8. It is desirable that the outer surface be closely fitted. At this time, the bottom portion 18 of the fitting tube 3 is made thicker so that the head of the bolt 26 is accommodated in the thickness (not shown).
[0018]
In the above embodiment, the fitting tube 3 is fixed to the lower pile 1 and the fitting projection 8 is fixed to the upper pile 6. Conversely, the fitting tube 3 is fixed to the upper pile 6 and the lower pile is fixed. 1, the fitting projection 8 of the upper pile 6 is fitted into the fitting projection 8 of the lower pile 1, and the pin 11 is inserted into the elongated hole 5 (FIG. 2A). , 10 to form the connecting pile 13 (FIG. 2B).
[0019]
In the above embodiment, the fitting tube 3 has the opening 14 at the bottom and the opening 15 at the tip end of the fitting projection 8, so that the hollow portions 1a and 6a of the piles 1 and 6 are up and down. However, the openings 14 and 15 may not be formed (FIG. 3A). In this case, similarly to the above-described embodiment, the fitting protrusion 6 is fitted into the fitting cylinder 3 and the pins 11, 11 are fitted into the elongated holes 5, 10, thereby forming the connecting pile 16 (FIG. 3 ( b)) .
[0020]
In the above-described embodiment, the fitting projection 8 has a bottomed cylindrical shape. However, as long as the fitting projection 8 can be inserted into the fitting cylinder 3, it can be a solid (not shown).
[0021]
The horizontal cross-sectional shape of the peripheral wall of the fitting cylinder 3 and the fitting protrusion 8 in the above does not matter, such as a circle, a square, and a hexagon.
[0022]
In the above embodiment, the long hole 10 is a through hole, but may be a slot (not shown).
[0023]
【The invention's effect】
Since the upper pile and the lower pile are connected by the fitting cylinder and the fitting protrusion that can be inserted into this, the shaft diameter of the connecting portion does not increase, and the connecting portion is not exposed on the surface, so the connection is performed. It is possible to prevent the connection portion from being broken by external force while the pile is being buried, and to provide a highly reliable connection pile. Also, since the pin is inserted into the long hole in the axial direction and stopped, a slight displacement of the hole position can be absorbed, and welding work is unnecessary, so that there is an effect that the connection work of the pile can be simplified. .
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, in which (a) shows an upper pile and a lower pile to which a connector is fixed, (b) shows a fitted state, and (c) shows a connected pile after connection.
2A and 2B are longitudinal sectional views of another embodiment of the present invention, wherein FIG. 2A shows an upper pile and a lower pile to which a connector is fixed, and FIG.
3A and 3B are longitudinal sectional views of another embodiment of the present invention, wherein FIG. 3A shows an upper pile and a lower pile to which a connector is fixed, and FIG.
FIG. 4 is an enlarged vertical sectional view of the connecting device of the present invention.
[Explanation of symbols]
1 Lower pile 2 End plate 3 Fitting tube 4 Perimeter wall (fitting tube)
5 Long hole 6 Upper pile 7 End plate 8 Fitting projection 10 Long hole 11 Pin 12 Connecting pile 13 Connecting pile 16 Connecting pile 17 Fitting cylinder body 18 Bottom 19 Bolt hole 20 Fitting projection body 21 Bottom 22 Flange 24 Bolt hole 25 Connector 26 Bolt 27 Connecting pile

Claims

(1) In a connection pile formed by connecting a lower pile having an end plate and an upper pile having an end plate ,
(2) in one end plate one of the end plates of the lower end portion of the end plate or the upper pile at the upper end of the lower pile, fixing the fitting tube bored long elongated hole vertically to the peripheral wall And
The fitting cylinder has a peripheral wall that is open upward and has a long hole formed therein, and a bottom portion having a bolt hole corresponding to a screw hole of the end plate. The bolt hole at the bottom is located inside the peripheral wall, and a bolt inserted into the bolt hole is screwed into the screw hole to fix the end plate and the fitting tube.
(3) at the other end plate of the end plate of the lower end portion of the end plate or the upper pile at the upper end of the lower pile, to secure the mating projection that can fitted into the fitting tube,
The fitting projection includes a peripheral wall having a vertically long hole that can communicate with the long hole of the fitting cylinder, and a flange having a bolt hole corresponding to a screw hole of the end plate. Have. A bolt hole of the flange is located inside the peripheral wall, and a bolt inserted into the bolt hole is screwed into the screw hole to fix the end plate and the fitting projection.
(4) A connecting pile, wherein a fitting projection is fitted into the fitting cylinder, and a pin is fitted into the long holes to connect the upper pile and the lower pile.

The connection pile according to claim 1, wherein the outer peripheral surface of the fitting cylinder is formed flush with the outer peripheral surface of the lower pile or the upper pile.