JPS63236813A - Formation work of concrete pile by rotational penetration of steel tube into ground - Google Patents
Formation work of concrete pile by rotational penetration of steel tube into groundInfo
- Publication number
- JPS63236813A JPS63236813A JP7198787A JP7198787A JPS63236813A JP S63236813 A JPS63236813 A JP S63236813A JP 7198787 A JP7198787 A JP 7198787A JP 7198787 A JP7198787 A JP 7198787A JP S63236813 A JPS63236813 A JP S63236813A
- Authority
- JP
- Japan
- Prior art keywords
- ground
- steel tube
- concrete pile
- tube
- steel pipe
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 17
- 239000010959 steel Substances 0.000 title claims abstract description 17
- 230000015572 biosynthetic process Effects 0.000 title 1
- 230000035515 penetration Effects 0.000 title 1
- 238000010276 construction Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
従来のコンクリート場所打杭は、鋼管内にスクリューを
回転させ掘進し、後でコンクリートを鋼管内に注入し、
鋼管を引き上げてコンクリート杭を造成している。この
工法だと掘削した土を上部に排出させざるを得ず、この
処理に時間と工費を要していた。本工法では土の排出は
行わずに、パイル容積分の土は鋼管の外周に圧入拡散さ
せる方法で、地盤の固い所では不向きであるが、もとも
と抗を必要とする地盤は軟弱地盤であるから、本工法も
可能となる。[Detailed Description of the Invention] Conventional concrete cast-in-place piles are made by rotating a screw into a steel pipe to dig it, and later pouring concrete into the steel pipe.
Steel pipes are being pulled up to create concrete piles. With this construction method, the excavated soil had to be discharged to the top, which required time and construction costs. In this method, the soil is not discharged, but the soil corresponding to the pile volume is forced into the outer periphery of the steel pipe and diffused. This method is not suitable for areas with hard ground, but since the ground that requires resistance is soft ground. , this method is also possible.
図面に従って詳述すると、第１図（１）は所要の鋼管で
、上部は回転駆動用のピン孔があけてあり、下部は歯型
クラッチのようにハメ込み駆動部（２）になっている。To explain in detail according to the drawings, Figure 1 (1) shows the required steel pipe, the upper part has a pin hole for rotational drive, and the lower part is a fit-in drive part (2) like a tooth type clutch. .
（３）は先端スクリューで地盤を掘削し、スクリュー羽
根で進入するようになっている。(3) excavates the ground with a screw tip and enters with a screw blade.
第２図は実際の稼動状態を示したもので、（７）吊り下
げ機械に（６）リーダーを設置し、これに（５）ドライ
ブモーターを吊り下げ昇降可能なようにする。Figure 2 shows the actual operating state, in which (7) a hanging machine is installed with (6) a reader, and (5) a drive motor is suspended from this so that it can be raised and lowered.
ドライブモーター下端は（４）ドライブピンで（１）鋼
管と接続されており（１）１１管の下端はハメ込み駆動
部を介して（３）先端スクリューがハメ込まれている。The lower end of the drive motor is connected to (1) the steel pipe with the (4) drive pin, and the lower end of the (1) 11 pipe is fitted with the (3) tip screw via the fitted drive part.
ドライブモーター（５）を回転させながら、吊り下げワ
イヤーを緩めると、鋼管はまず自重で地中に掘削する。When the suspension wire is loosened while rotating the drive motor (5), the steel pipe first excavates underground under its own weight.
自重だけでは進入不可能となれば、ウィンチあるいは油
圧シリンダー等で、強制的に下圧力を加えるよ−うにし
ておけば、かなりの地盤まで進入可能である。このよう
にして所定進入深さまで掘進したところでドライブピン
を外して、ドライブモーター（５）を吊り下げ、鋼管（
１）内にコンクリートを注入する。ドライブモーラダ一
（５）を降ろし、ドライブピン（４）を入れて鋼管（１
）を引き上げると、先端スクリュー（３）は残り、この
上にコンクリート杭が形成される。又、ドライブピン（
４）を抜いて鋼管をそのまま地中に残せば鋼管杭として
利用出来ることはいうまでもない。If it becomes impossible to enter with just its own weight, if you use a winch or hydraulic cylinder to forcibly apply downward pressure, it will be possible to penetrate to a considerable depth of ground. After digging to the specified depth in this way, the drive pin is removed, the drive motor (5) is suspended, and the steel pipe (
1) Pour concrete inside. Lower the drive molder (5), insert the drive pin (4), and
) is pulled up, the tip screw (3) remains, on which the concrete pile is formed. Also, drive pin (
It goes without saying that if 4) is removed and the steel pipe is left underground, it can be used as a steel pipe pile.
第１図は、本発明の拡大図 第２図は、本発明の使用状態図 （１）ＩＮ管 （２）ハメ込み駆動部 （３）先端スクリュー （４） ドライブピン （５） ドライブモーター （６） リーダー （７）吊り下げ機械 °特許出願人 塚 本 洋 之 FIG. 1 is an enlarged view of the present invention. FIG. 2 is a usage state diagram of the present invention. (1) IN pipe (2) Fitting drive part (3) Tip screw (4) Drive pin (5) Drive motor (6) Leader (7) Hanging machine °Patent applicant Hiroyuki Tsuka
Claims (1)
、脱着可能なように装置して、地中に回転圧入し、鋼管
内にコンクリートを注入した後鋼管を引き上げて、コン
クリート杭を造成させる工法。A construction method in which a removable tip cap with screw blades is attached to the tip of a steel pipe, which is rotatably press-fitted into the ground, concrete is injected into the steel pipe, and then the steel pipe is pulled up to create a concrete pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7198787A JPS63236813A (en) | 1987-03-24 | 1987-03-24 | Formation work of concrete pile by rotational penetration of steel tube into ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7198787A JPS63236813A (en) | 1987-03-24 | 1987-03-24 | Formation work of concrete pile by rotational penetration of steel tube into ground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63236813A true JPS63236813A (en) | 1988-10-03 |
Family
ID=13476322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7198787A Pending JPS63236813A (en) | 1987-03-24 | 1987-03-24 | Formation work of concrete pile by rotational penetration of steel tube into ground |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63236813A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013124446A (en) * | 2011-12-13 | 2013-06-24 | Toa Harbor Works Co Ltd | Tip cap of casing for ground excavation, and casing for ground excavation with tip cap |
| CN106958242A (en) * | 2017-04-01 | 2017-07-18 | 浙江龙翔建设有限公司 | Steel pile casting is installed and method for dismounting |
-
1987
- 1987-03-24 JP JP7198787A patent/JPS63236813A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013124446A (en) * | 2011-12-13 | 2013-06-24 | Toa Harbor Works Co Ltd | Tip cap of casing for ground excavation, and casing for ground excavation with tip cap |
| CN106958242A (en) * | 2017-04-01 | 2017-07-18 | 浙江龙翔建设有限公司 | Steel pile casting is installed and method for dismounting |
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