JPH0718675A - Sc pile and executing method thereof - Google Patents
Sc pile and executing method thereofInfo
- Publication number
- JPH0718675A JPH0718675A JP5183299A JP18329993A JPH0718675A JP H0718675 A JPH0718675 A JP H0718675A JP 5183299 A JP5183299 A JP 5183299A JP 18329993 A JP18329993 A JP 18329993A JP H0718675 A JPH0718675 A JP H0718675A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- pile
- steel pipe
- tubular body
- ground
- 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
- Foundations (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Piles And Underground Anchors (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は建築構造物その土木構造
物の基礎となるフーチングを支持固定するSC杭及びそ
の施工方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an SC pile for supporting and fixing a footing which is a basis of a building structure and a civil engineering structure, and a construction method thereof.
【0002】[0002]
【従来の技術】従来、例えば図6で示す如くフーチング
Dを支持固定するSC杭aとしてコンクリートの筒状体
bの外周に鋼管cを被覆したものが知られている。2. Description of the Related Art Conventionally, as shown in FIG. 6, for example, an SC pile a for supporting and fixing a footing D is known in which a steel pipe c is coated on the outer periphery of a concrete tubular body b.
【0003】[0003]
【発明が解決しようとする課題】しかし上記従来のSC
杭aを使った施工方法によると、地中に打設した当該S
C杭aが地上の均しコンクリートBの上面から少許露出
したその周面の鋼管cに、フーチングを支持固定するた
めに別個にアンカー鉄筋dを垂直に溶着しなければなら
ず、この溶着のための溶接姿勢が悪くなるために溶接が
十分に行いにくく溶接の信頼度が低くなる等の問題点を
有していた。However, the conventional SC described above is used.
According to the construction method using the pile a, the S that has been placed underground
In order to support and fix the footing, the anchor bar d must be separately welded vertically to the steel pipe c on the peripheral surface of which the C pile a is slightly exposed from the upper surface of the leveling concrete B on the ground. However, there is a problem in that the welding posture is poor and it is difficult to perform welding sufficiently, and the reliability of welding is reduced.
【0004】本発明は上記の問題点を解決し、簡単な構
造でしかも施工上の信頼性が高いSC杭とその施工方法
を提供することを目的とする。It is an object of the present invention to solve the above problems and provide an SC pile having a simple structure and high reliability in construction, and a construction method thereof.
【0005】[0005]
【課題を解決するための手段】上記の目的を達成するた
め本発明は、鋼管と、該鋼管の内周面に打設したコンク
リートの筒状体と、該コンクリート筒状体内に軸方向に
埋設した複数のアンカー鉄筋とからなることを特徴とす
る。To achieve the above object, the present invention provides a steel pipe, a concrete tubular body cast on the inner peripheral surface of the steel pipe, and an axially embedded concrete tubular body. It is characterized by comprising a plurality of anchor rebars.
【0006】[0006]
【作用】SC杭を地中に打設する。[Operation] An SC pile is driven into the ground.
【0007】そして地上の均しコンクリートから少許上
方までの鋼管部分を残して、その少許上方から該SC杭
の端面までに被覆された鋼管を溶断して除去し、更にそ
の鋼管を取り除いた個所にあたるコンクリート筒状体の
コンクリートの露出部分を解体する。Then, the steel pipe portion from the leveled concrete to the upper part of the ground is left, and the steel pipe covered from the upper part of the concrete to the end face of the SC pile is melted and removed, and the steel pipe is removed. Dismantle the exposed part of the concrete in the concrete tubular body.
【0008】一方、予め地上の均しコンクリートから少
許上方までの鋼管部分を残して、その少許上方から該S
C杭の端面までの鋼管部分が取り除いてあるSC杭にお
いては、当該SC杭のコンクリート筒状体の露出部分を
上方として、該SC杭を地中に打設し、該コンクリート
筒状体の露出部分を解体する。On the other hand, the steel pipe portion from the leveled concrete on the ground to the upper side of the small area is left in advance, and the S pipe is formed from the upper side of the small area.
In the SC pile in which the steel pipe portion up to the end surface of the C pile is removed, the exposed portion of the concrete tubular body of the SC pile is placed above and the SC pile is driven into the ground to expose the concrete tubular body. Dismantle parts.
【0009】かくてコンクリート筒状体の軸方向に埋め
込まれたアンカー鉄筋が露出することにより、フーチン
グを支承して固定するために当該アンカー鉄筋をそのま
ま使用することができる。Thus, by exposing the anchor rebar embedded in the axial direction of the concrete tubular body, the anchor rebar can be used as it is for supporting and fixing the footing.
【0010】[0010]
【実施例】以下、本発明の1実施例を図1及び図2によ
り説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.
【0011】1はSC杭を示し、該SC杭1はその全長
にわたり被覆した鋼管1aと、該鋼管1aの内周面のコ
ンクリートの筒状体2と、該コンクリート筒状体2の軸
方向に埋め込まれた複数のアンカー鉄筋3とからなる。Reference numeral 1 denotes an SC pile, which is a steel pipe 1a covering the entire length thereof, a concrete tubular body 2 on the inner peripheral surface of the steel pipe 1a, and an axial direction of the concrete tubular body 2. It consists of a plurality of anchor rebars 3 embedded.
【0012】次にこの実施例の施工方法について図3に
より説明する。Next, the construction method of this embodiment will be described with reference to FIG.
【0013】先づ予め、当該SC杭1を杭打ち機等でそ
の端面から地上の均しコンクリートBの上面までの距離
が所定の長さになるまで地中に打設する。First, the SC pile 1 is first driven into the ground by a pile driving machine or the like until the distance from its end face to the upper surface of the leveling concrete B on the ground becomes a predetermined length.
【0014】次に該SC杭1の外周を囲繞するように地
面に均しぐり石Aと、更にその上に均しコンクリートB
を敷設すると共に、該SC杭1内に中埋コンクリートC
を該均しコンクリートBと同一の高さになるまで中埋め
する。Next, a leveling stone A is leveled on the ground so as to surround the outer periphery of the SC pile 1, and leveling concrete B is further placed on the leveling stone A.
And laying concrete in the SC pile 1
Is filled to the same height as the leveled concrete B.
【0015】次に該均しコンクリートBの少許上方から
SC杭1の端面までの鋼管1aを溶断して除去し、更に
該鋼管1aが除去された個所にあたるコンクリートの筒
状体2のコンクリートを解体して該コンクリート筒状体
2の軸方向に埋め込まれた複数のアンカー鉄筋3を露出
させる。Next, the steel pipe 1a from a little above the leveled concrete B to the end face of the SC pile 1 is melted and removed, and the concrete of the concrete tubular body 2 corresponding to the portion where the steel pipe 1a is removed is dismantled. Then, the plurality of anchor rebars 3 embedded in the axial direction of the concrete tubular body 2 are exposed.
【0016】そしてこの露出したアンカー鉄筋3に図示
していない基礎梁主筋を結着させ型枠を嵌めて生コンを
流し込みフーチングDを造る。Then, a main beam (not shown) is attached to the exposed anchor reinforcing bar 3 and a mold is fitted into the anchor reinforcing bar 3, so that fresh concrete is poured into the footing D.
【0017】かくて当該アンカー鉄筋3をSC杭1に溶
着することなく直接にフーチングDを支持して固定する
ことができるのでSC杭1の施工上の信頼性が向上す
る。Thus, the anchor rebar 3 can be directly supported and fixed to the footing D without being welded to the SC pile 1, so that the construction reliability of the SC pile 1 is improved.
【0018】図4及び図5は本発明の他の実施例を示
し、前記コンクリート筒状体2をその端面から所定の長
さにわたって露出させて該コンクリート筒状体2の残余
の部分を鋼管1aにて被覆しているSC杭1であり、前
記複数のアンカー鉄筋3を露出させるに際し、被覆され
た鋼管1aを溶断して除去する作業上の手間が省略でき
るという効果を有する。FIGS. 4 and 5 show another embodiment of the present invention, in which the concrete tubular body 2 is exposed from its end face for a predetermined length, and the remaining portion of the concrete tubular body 2 is steel pipe 1a. It is an SC pile 1 covered with 1., and has an effect that it is possible to omit the work time for fusing and removing the covered steel pipe 1a when exposing the plurality of anchor rebars 3.
【0019】[0019]
【発明の効果】上記のように本発明のSC杭によると、
鋼管と、該鋼管内のコンクリートの筒状体と、該コンク
リート筒状体の軸方向に埋め込んだ複数のアンカー鉄筋
とにより構成したので、地中に打設したSC杭において
端面から所定の長さまでの鋼管の切断除去及び又はコン
クリート筒状体のコンクリートを解体してアンカー鉄筋
を露出し、該アンカー鉄筋を利用してフーチングを支持
固定でき、かくて施工上の信頼性が向上する効果を有す
る。As described above, according to the SC pile of the present invention,
Since it is composed of a steel pipe, a concrete tubular body in the steel pipe, and a plurality of anchor reinforcing bars embedded in the axial direction of the concrete tubular body, in the SC pile driven underground, from the end face to a predetermined length. The steel pipe can be removed by cutting and / or the concrete of the concrete tubular body can be disassembled to expose the anchor reinforcing bar, and the footing can be supported and fixed by using the anchor reinforcing bar, thus improving the reliability in construction.
【図1】本発明の1実施例の断面図である。FIG. 1 is a sectional view of an embodiment of the present invention.
【図2】そのII-II 截断面図である。FIG. 2 is a sectional view taken along the line II-II.
【図3】その一施工状態を示す断面図である。FIG. 3 is a cross-sectional view showing one construction state thereof.
【図4】本発明の他の実施例の断面図である。FIG. 4 is a sectional view of another embodiment of the present invention.
【図5】そのV−V截断面図である。FIG. 5 is a sectional view taken along line VV.
【図6】従来のSC杭の施工状態を示す断面図である。FIG. 6 is a cross-sectional view showing a construction state of a conventional SC pile.
1 SC杭 1a 鋼管 2 コンクリートの筒状体 3 アンカー鉄筋 1 SC pile 1a Steel pipe 2 Concrete tubular body 3 Anchor rebar
Claims (5)
クリートの筒状体と、該コンクリート筒状体内に軸方向
に埋設した複数のアンカー鉄筋とからなることを特徴と
するSC杭。1. An SC pile comprising a steel pipe, a concrete tubular body cast on the inner peripheral surface of the steel pipe, and a plurality of anchor rebars axially embedded in the concrete tubular body. .
長にわたり被覆されていることを特徴とする請求項1に
記載の鋼管杭。2. The steel pipe pile according to claim 1, wherein the steel pipe is covered over the entire length of the concrete tubular body.
その端面から所定の長さにわたって露出させて該コンク
リート筒状体の残余の部分を被覆していることを特徴と
する請求項1に記載のSC杭。3. The steel pipe covers the remaining portion of the concrete tubular body by exposing the concrete tubular body from its end surface over a predetermined length. SC pile.
面から地上の均しコンクリートの上面までの距離が所定
の長さになるまで地中に打設し、該均しコンクリートの
少許上方から前記端面までの前記鋼管を切断して除去
し、該鋼管の除去された個所の前記コンクリート筒状体
のコンクリートを解体して前記複数のアンカー鉄筋を露
出することを特徴とする鋼管杭の施工方法。4. The SC pile according to claim 2 is driven into the ground until the distance from the end face to the upper surface of the leveling concrete on the ground reaches a predetermined length, and the leveling of the leveling concrete is reduced. The steel pipe from the upper side to the end surface is cut and removed, and the concrete of the concrete tubular body at the removed portion of the steel pipe is dismantled to expose the plurality of anchor rebars. Construction method.
ート筒状体の露出部を上方として該SC杭を、前記鋼管
の端部が地上の均しコンクリートの上面より少許上方の
位置になるまで地中に打設し、前記露出部のコンクリー
トを解体して前記複数のアンカー鉄筋を露出することを
特徴とするSC杭の施工方法。5. The SC pile according to claim 3, wherein the exposed portion of the concrete tubular body is upward, and the end of the steel pipe is located slightly above the upper surface of the leveling concrete on the ground. A method for constructing an SC pile, which is characterized in that the concrete of the exposed portion is disassembled to expose the plurality of anchor rebars.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5183299A JPH0718675A (en) | 1993-06-30 | 1993-06-30 | Sc pile and executing method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5183299A JPH0718675A (en) | 1993-06-30 | 1993-06-30 | Sc pile and executing method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0718675A true JPH0718675A (en) | 1995-01-20 |
Family
ID=16133245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5183299A Pending JPH0718675A (en) | 1993-06-30 | 1993-06-30 | Sc pile and executing method thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0718675A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010196251A (en) * | 2009-02-23 | 2010-09-09 | Nippon Concrete Ind Co Ltd | Existing concrete pile |
JP2010255394A (en) * | 2009-03-31 | 2010-11-11 | Japan Pile Corp | Sc pile, manufacturing method therefor, and pile head treatment method |
JP2017503101A (en) * | 2014-01-15 | 2017-01-26 | シービージェイ(香港) オーシャン エンジニアリング リミテッドCbj(Hong Kong) Ocean Engineering Limited | Water structure fixing roll and its construction method |
-
1993
- 1993-06-30 JP JP5183299A patent/JPH0718675A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010196251A (en) * | 2009-02-23 | 2010-09-09 | Nippon Concrete Ind Co Ltd | Existing concrete pile |
JP2010255394A (en) * | 2009-03-31 | 2010-11-11 | Japan Pile Corp | Sc pile, manufacturing method therefor, and pile head treatment method |
JP2017503101A (en) * | 2014-01-15 | 2017-01-26 | シービージェイ(香港) オーシャン エンジニアリング リミテッドCbj(Hong Kong) Ocean Engineering Limited | Water structure fixing roll and its construction method |
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