JPH0571731B2 - - Google Patents
Info
- Publication number
- JPH0571731B2 JPH0571731B2 JP60093290A JP9329085A JPH0571731B2 JP H0571731 B2 JPH0571731 B2 JP H0571731B2 JP 60093290 A JP60093290 A JP 60093290A JP 9329085 A JP9329085 A JP 9329085A JP H0571731 B2 JPH0571731 B2 JP H0571731B2
- Authority
- JP
- Japan
- Prior art keywords
- pile
- steel pipe
- bolt insertion
- insertion hole
- bolt
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/56—Screw piles
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Piles And Underground Anchors (AREA)
- Foundations (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は杭頭部を補強する基礎杭の施工法に
関するものである。[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a method of constructing foundation piles for reinforcing pile heads.
出願人は先に地盤中に埋設された既製杭の頭部
外周に鋼管からなるケーシングを埋設して曲げモ
ーメントが大きく作用する杭頭部の補強方法に関
連する発明を提案した。（特開昭57−108325号公
報参照）
ところで近年杭の打撃工法に代つて低騒音、低
振動による既製杭の埋設工法として中掘り工法、
プレボーリング工法が多用されるに至つている。
The applicant previously proposed an invention related to a method of reinforcing a pile head on which a large bending moment acts by burying a casing made of a steel pipe around the head of a ready-made pile buried in the ground. (Refer to Japanese Unexamined Patent Publication No. 108325/1983) In recent years, the hollow digging method has replaced the pile hammering method as a low-noise, low-vibration burying method for prefabricated piles.
The pre-boring method has come into widespread use.
そこでこの発明も低公害工法の目的に順応すべ
く杭頭部の補強鋼管の埋設に、従来ねじ込み杭工
法において実施されている手段を応用すべくした
ものである。 Therefore, in order to meet the purpose of a low-pollution construction method, this invention also applies the means used in the conventional screw pile construction method to burying reinforcing steel pipes in the pile head.
この発明の要旨は既製杭を地盤中に埋設後、前
記杭をガイドとし、先端部に螺旋状突起等の掘削
刃を有し、また鋼管上部にボルト挿通孔を有する
フランジを有し、かつ前記既製杭よりもその内径
が大径の鋼管に前記ボルト挿通孔にボルトを挿通
して回転装置を取付けてねじりモーメントを加え
ることにより、その鋼管を回転させ、杭頭部外周
の地盤中にねじ込みして埋設し、次いでボルトお
よび回転装置を外し、前記ボルト挿通孔にアンカ
ー鉄筋を挿入して取付ける施工法である。
The gist of this invention is to bury a ready-made pile in the ground, use the pile as a guide, have a digging blade such as a spiral protrusion at the tip, and have a flange with a bolt insertion hole at the top of the steel pipe, and A bolt is inserted into the bolt insertion hole in a steel pipe whose inner diameter is larger than that of the ready-made pile, and a rotating device is attached to apply a torsional moment to rotate the steel pipe and screw it into the ground around the outer periphery of the pile head. This is a construction method in which the bolts and rotating device are removed, and the anchor reinforcing bars are inserted into the bolt insertion holes for installation.
まず鉄筋コンクリート杭あるいは鋼管杭等の既
製杭１をプレボーリング工法、中掘工法等によつ
て所定の位置に埋設する。
First, a ready-made pile 1 such as a reinforced concrete pile or a steel pipe pile is buried in a predetermined position by a pre-boring method, a medium digging method, or the like.
杭頭補強用の鋼管２は先端部に螺旋状の突起あ
るいは螺旋状の羽根からなる掘削刃３が設けてあ
る。また頭部には接合用のフランジ４が突設して
あり、このフランジ４にはボルト挿通孔５が穿設
してある。 The steel pipe 2 for reinforcing the pile cap is provided at its tip with a digging blade 3 consisting of a spiral protrusion or spiral blade. Further, a joining flange 4 is protruded from the head, and a bolt insertion hole 5 is bored in this flange 4.
以上鋼管２を既製杭１をガイドとし、鋼管２の
フランジ４のボルト挿通孔５に挿通したボルトお
よびナツトを用いて接合した回転装置６を作動さ
せることにより、ねじりモーメントを加え、鋼管
２を回転させ、螺旋状の掘削刃により地盤を掘削
する。これによつて鋼管２は杭頭部外周の地盤中
に埋設される。 As described above, the steel pipe 2 is rotated by applying a torsional moment by operating the rotating device 6, which is connected to the steel pipe 2 using the ready-made pile 1 as a guide and using bolts and nuts inserted into the bolt insertion holes 5 of the flange 4 of the steel pipe 2. Then, the ground is excavated using a spiral digging blade. As a result, the steel pipe 2 is buried in the ground around the outer periphery of the pile head.
その後前記ボルト挿通孔５に挿通したボルトお
よび回転装置６を外し、フランジのボルト挿通孔
５にはねじ鉄筋７を挿通し、ナツト８により固定
してアンカー鉄筋とする。 Thereafter, the bolt inserted into the bolt insertion hole 5 and the rotating device 6 are removed, and a threaded reinforcing bar 7 is inserted into the bolt insertion hole 5 of the flange and fixed with a nut 8 to serve as an anchor reinforcing bar.
次いで既製杭１の上部内、鋼管２と既製杭１と
の間隙およびフーチング９のコンクリートを造成
して基礎を造成する。 Next, concrete is created in the upper part of the ready-made pile 1, the gap between the steel pipe 2 and the ready-made pile 1, and the footing 9 to create a foundation.
この発明は以上の構成からなり、ケーシングと
なる既製杭頭部を補強する鋼管の先端部には螺旋
状の掘削刃を有するので、先に埋設した既製杭を
ガイドとしてねじりモーメントを加えることによ
り地盤中に埋設することができる。したがつて低
公害の施工が可能となる。
This invention has the above-mentioned configuration, and since the tip of the steel pipe that reinforces the head of the ready-made pile serving as the casing has a spiral digging blade, it is possible to use the previously buried ready-made pile as a guide to apply a torsional moment to the ground. It can be buried inside. Therefore, construction with low pollution is possible.
また鋼管頂部のフランジのボルト挿通孔によつ
て回転装置の取付けを容易とするとともに、従来
溶接によつていたアンカー鉄筋の取付けに前記ボ
ルト挿通孔を利用するので施工が容易かつ確実な
ナツトによる取付けを可能とすることができる。 In addition, the bolt insertion holes in the flange at the top of the steel pipe make it easy to install the rotating device, and the bolt insertion holes are used to install anchor reinforcing bars, which were conventionally welded, making installation easier and more reliable with nuts. Installation can be made possible.
第１図、第２図は施工状態の概要を示した縦断
面図と−矢視図、第３図、第４図は鋼管の他
の実施例を示した立面図と−矢視図、第５図
は施工完了後の縦断面図、第６図はフランジ平面
図である。
１……既製杭、２……鋼管、３……掘削刃、４
……フランジ、５……ボルト挿通孔、６……回転
装置、７……ねじ鉄筋、８……ナツト、９……フ
ーチング。
Figures 1 and 2 are a vertical sectional view and a view in the direction of the arrow, showing an overview of the construction state, and Figures 3 and 4 are an elevation view and a view in the direction of the arrow, showing other embodiments of the steel pipe. FIG. 5 is a longitudinal sectional view after completion of construction, and FIG. 6 is a flange plan view. 1...Ready-made pile, 2...Steel pipe, 3...Drilling blade, 4
... Flange, 5 ... Bolt insertion hole, 6 ... Rotating device, 7 ... Threaded reinforcing bar, 8 ... Nut, 9 ... Footing.
Claims (1)
し、先端部に螺旋状の掘削刃を有し、また鋼管上
部にボルト挿通孔を有するフランジを有し、かつ
前記杭より内径が大径の鋼管に前記ボルト挿通孔
にボルトを挿通して回転装置を取付けてねじりモ
ーメントを加えることにより杭頭部外周の地盤中
に埋設し、次いでボルトおよび回転装置を外し、
前記ボルト挿通孔にアンカー鉄筋を挿入して取付
けることを特徴とする杭頭部補強杭の施工法。1 After burying a ready-made pile in the ground, use the pile as a guide, have a spiral digging blade at the tip, a flange with a bolt insertion hole at the top of the steel pipe, and have a larger inner diameter than the pile. The steel pipe is buried in the ground around the outer periphery of the pile head by inserting a bolt into the bolt insertion hole, attaching a rotating device and applying a torsion moment, and then removing the bolt and rotating device,
A method for constructing a pile head reinforcement pile, which comprises inserting and installing an anchor reinforcing bar into the bolt insertion hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9329085A JPS61250228A (en) | 1985-04-30 | 1985-04-30 | Construction of head-reinforced pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9329085A JPS61250228A (en) | 1985-04-30 | 1985-04-30 | Construction of head-reinforced pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61250228A JPS61250228A (en) | 1986-11-07 |
| JPH0571731B2 true JPH0571731B2 (en) | 1993-10-07 |
Family
ID=14078262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9329085A Granted JPS61250228A (en) | 1985-04-30 | 1985-04-30 | Construction of head-reinforced pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61250228A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4693423B2 (en) * | 2005-01-18 | 2011-06-01 | ジャパンパイル株式会社 | Pile head reinforcement method |
| JP4498348B2 (en) * | 2006-12-26 | 2010-07-07 | Ｊｆｅスチール株式会社 | Screwed steel pipe pile |
| JP4946695B2 (en) * | 2007-07-27 | 2012-06-06 | Ｊｆｅスチール株式会社 | Construction method of double pipe type pile head structure |
| JP4943363B2 (en) * | 2008-03-11 | 2012-05-30 | 新日本製鐵株式会社 | Steel pipe pile and its construction method |
| JP5665980B2 (en) * | 2011-06-02 | 2015-02-04 | 旭化成建材株式会社 | Pile construction method using buried jig and buried jig for pile construction |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53135108A (en) * | 1977-04-28 | 1978-11-25 | Uchida Tankou Kk | Method of driving screw anchor |
| JPS57108325A (en) * | 1980-12-23 | 1982-07-06 | Tomoegumi Iron Works Ltd | Fixation of pile head |
-
1985
- 1985-04-30 JP JP9329085A patent/JPS61250228A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53135108A (en) * | 1977-04-28 | 1978-11-25 | Uchida Tankou Kk | Method of driving screw anchor |
| JPS57108325A (en) * | 1980-12-23 | 1982-07-06 | Tomoegumi Iron Works Ltd | Fixation of pile head |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61250228A (en) | 1986-11-07 |
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