JPS6327617A - Setting work of pile by preboring - Google Patents

Setting work of pile by preboring

Info

Publication number
JPS6327617A
JPS6327617A JP16920086A JP16920086A JPS6327617A JP S6327617 A JPS6327617 A JP S6327617A JP 16920086 A JP16920086 A JP 16920086A JP 16920086 A JP16920086 A JP 16920086A JP S6327617 A JPS6327617 A JP S6327617A
Authority
JP
Japan
Prior art keywords
pile
wall
pit
concrete
hole
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.)
Granted
Application number
JP16920086A
Other languages
Japanese (ja)
Other versions
JPH0561409B2 (en
Inventor
Nakamasa Murakami
村上 中正
Chikao Watabe
渡部 愛雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitani Sekisan Co Ltd
Original Assignee
Mitani Sekisan Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitani Sekisan Co Ltd filed Critical Mitani Sekisan Co Ltd
Priority to JP16920086A priority Critical patent/JPS6327617A/en
Publication of JPS6327617A publication Critical patent/JPS6327617A/en
Publication of JPH0561409B2 publication Critical patent/JPH0561409B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Piles And Underground Anchors (AREA)

Abstract

PURPOSE:To stably hold a pile in a pit by a method in which a pile is penetrated into a pit, and cement milk is packed into the space between the upper end of the outer wall of the pile and the upper end of the inner wall of the pit. CONSTITUTION:A concrete pile 1 is penetrated into a pit 3 for setting, and a steel tube 4 is fitted on the outer wall uppper part of the pile 1 by a guide ring 6 with a plurality of projections 7. while the tube 4 is turned and raised slowly, cement milk is injected from a nozzle 8 into the space between the outer wall of the pile 1 and the inner wall of the pit 3 and hardened. Since the upper end of the pile 1 can be fixed to the upper end of the pit 3, the pile 1 can be stably held in the pile pit 3.

Description

【発明の詳細な説明】 (産業上の利用分野) この発明はコンクリートくいの設置工法に関するもので
、基礎くいおよびその設置に関する産業分野に属する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a concrete pile installation method, and belongs to the industrial field related to foundation piles and their installation.

(従来の技術) 従来プレボーリングによるコンクリートくいの設置工法
においては、くい周固定液として、例えば所定量のセメ
ントミルクをくい穴の下部に注入しておき、くいの挿入
によって、くい穴内壁と、くい外壁との間に、前記注入
セメントミルクを上昇させるようにしている。
(Prior art) In the conventional method of installing concrete piles by pre-boring, a predetermined amount of cement milk, for example, is injected into the lower part of the pile hole as a fixing liquid around the pile, and by inserting the pile, the inner wall of the pile is fixed. The injected cement milk is allowed to rise between the pile and the outer wall.

(発明により解決ずべき問題点) 然し乍ら、くいの下端を所定長さに亘って大径にしたく
いにあっては、くいの上部外径に対して、くい穴の上部
内径が大きく、くいの=L部を不安定にするおそれがあ
った0例えばくい穴上部における間隙は哲々5Cm(直
径10cn+)以上になることがある。このような場合
に、くい大穴から」−4部まで、くい周固定液を充填す
ると、厖大な星のセメントミルクを必要としくくいの中
空部にも入るので一層大量になる)、施工費の増大と、
施工労力および時間の増大を招くなどの問題点があった
(Problems to be Solved by the Invention) However, in the case of a pile in which the lower end of the pile has a large diameter over a predetermined length, the upper inner diameter of the pile hole is larger than the upper outer diameter of the pile, and the pile has a large diameter. = There was a risk of making the L section unstable. For example, the gap at the top of the hole may be more than 5 cm (diameter 10 cm+). In such a case, if you fill the pile circumference fixative from the large hole of the pile up to 4 parts, it will require a huge amount of star cement milk, which will also enter the hollow part of the pile, resulting in an even larger amount), and will reduce the construction cost. increase and
There were problems such as an increase in construction labor and time.

(問題点を解決する為の手段) 然るにこの発明は、くい穴にコンクリートくいを挿入し
た後に、くい穴上端内壁と、コンクリートくいの外壁と
の間に、くい周固定液を注入するようにして、前記従来
の問題点を解決したのである。
(Means for Solving the Problems) However, in this invention, after inserting a concrete pile into the pile hole, a pile circumferential fixing liquid is injected between the inner wall at the upper end of the pile hole and the outer wall of the concrete pile. , the above-mentioned conventional problems have been solved.

即ちこの発明はくいの設置予定地へ、所定のくい穴を掘
削し、このくい穴にコンクリートくいを挿入設置する工
法において、コンクリートくいを挿入後、コンクリート
くいの上部側壁と、くい穴内壁との間隙部へ所定長さに
亘ってくい周固定液を注入しつつ撹拌して、コンクリー
トくいの上部を固定してプレポーリング工法によるくい
設置工法を完了する。前記コンクリートくいは、下端へ
所定長さに亘って大径部を連設しである。
That is, this invention is a construction method in which a predetermined pile hole is excavated at the site where the pile is planned to be installed, and a concrete pile is inserted into the hole. Pile circumferential fixing liquid is injected into the gap over a predetermined length and stirred, fixing the upper part of the concrete pile and completing the pile installation method using the pre-poling method. The concrete pile has a large diameter portion connected to the lower end over a predetermined length.

前記において、くい周固定液は、支持材によって水平に
支持された注液管のノズルにより行われる。前記支持材
は、例えば合成樹脂製又は鋼製の円筒或いは支杆などの
枠材を用いる。前記円筒の外壁には突片が千鳥状に突設
してあり、円筒を回転することによってセメントミルク
又はセメントミルクと間隙介在液とを混合できるように
なっている。
In the above, the circumference fixing solution is applied through a nozzle of a liquid injection pipe that is horizontally supported by a support member. As the support material, a frame material such as a cylinder or a support rod made of synthetic resin or steel is used, for example. Projections are provided on the outer wall of the cylinder in a staggered manner, and by rotating the cylinder, the cement milk or the cement milk and the interstitial liquid can be mixed.

(発明の作用) 即ちこの発明によれば、くい穴上端部内壁と、くいの上
端部外壁との間に、くい周固定液を注入するので、くい
の上端部はくい穴上端部に安定固定される。然して、く
い周固定液を撹拌しつつ注入すれば、液の硬化により均
質固定材を介在したものということができる。
(Operation of the invention) That is, according to the present invention, the pile circumference fixing liquid is injected between the inner wall of the upper end of the pile and the outer wall of the upper end of the pile, so that the upper end of the pile is stably fixed to the upper end of the pile. be done. However, if the circumferential fixing liquid is injected while being stirred, it can be said that a homogeneous fixing material is interposed as the liquid hardens.

(実施例) 次にこの発明の実施例について説明する。(Example) Next, embodiments of this invention will be described.

コンクリートくい1の設置予定地2へ、くい六3を掘削
し、くい六3内へ、コンクリートくい1を挿入し、その
下端をくい大成へ固定する。この固定については、拡底
によりセメントミルクで固定し、その他の根固め工法又
は最終軽打工法等を用いる。次に51iiI管4の下端
に注液管5を埋設した案内環6を嵌挿固定し、前記案内
環6の外側壁には、外壁が、くい穴壁を案内できる複数
の突条7を等間隔に縦設し、前記案内環6の下側には注
液管5のノズル口8を穿設し、注液管5には、前記鋼管
4外壁にはセメントミルクの移送管9を設ける。
A pile 6 3 is excavated at the planned installation site 2 of the concrete pile 1, the concrete pile 1 is inserted into the pile 6 3, and its lower end is fixed to the pile taisei. For this fixation, fix with cement milk by expanding the bottom, and use other methods such as foot hardening method or final light pounding method. Next, a guide ring 6 with a liquid injection pipe 5 buried therein is inserted and fixed into the lower end of the 51iii pipe 4, and the outer wall of the guide ring 6 has a plurality of protrusions 7 that can guide the wall of the hole. A nozzle opening 8 of a liquid injection pipe 5 is provided below the guide ring 6, and a cement milk transfer pipe 9 is provided on the outer wall of the steel pipe 4 of the liquid injection pipe 5.

前記鋼管4をコンクリートくい1の上部に嵌挿  ・し
つつ下降し、適度に下降した位置から、前記鋼管4を回
転し、かつ緩徐に上昇しつつ、前記ノズル口8からセメ
ントミルクを注出する。このようにすると、セメントミ
ルクは、前記コンクリートくい1の外壁と、くい穴2の
内壁との間に順次充填されると共に、鋼管を回転しつつ
、上下することによって、前記間隙部へセメントミルク
を均等に分布させることができる。
The steel pipe 4 is inserted into the upper part of the concrete pile 1 and lowered, and from the moderately lowered position, the steel pipe 4 is rotated and slowly raised, pouring out cement milk from the nozzle port 8. . In this way, cement milk is sequentially filled between the outer wall of the concrete pile 1 and the inner wall of the pile hole 2, and the cement milk is poured into the gap by rotating the steel pipe and moving it up and down. Can be evenly distributed.

前記実施例においては、注液管の支持材に#4管を用い
たが、適宜の杆体又は枠体によって注液管を支持しても
よいことは勿論である。
In the embodiment described above, a #4 tube was used as the support material for the liquid injection tube, but it goes without saying that the liquid injection tube may be supported by an appropriate rod or frame.

(発明の効果) 即ちこの発明によれば、プレボーリングによるコンクリ
ートくいの設置工法において、くい穴へくいを挿入した
後、そめ上部外側ヘセメントミルクを注入して、くいを
保定するので、くいは安定保持され、確実に支持効果を
発揮すると共に、比較的少量の材料で有効な基礎を造成
し得る効果がある。
(Effect of the invention) That is, according to the present invention, in the method of installing concrete piles by pre-boring, after inserting the pile into the pile hole, cement milk is injected to the outside of the upper part of the pile to hold the pile. It is stably held, provides reliable support, and can create an effective foundation with a relatively small amount of material.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明の実施中途における一部断面図、第2
図は同じくこの発明の実施に用いる鋼管の一部正面図、
第3図は同じく下面図、第4図は同じく一部断面拡大図
である。
Fig. 1 is a partial cross-sectional view of the present invention in the middle of implementation;
The figure is also a partial front view of a steel pipe used for carrying out this invention.
FIG. 3 is a bottom view, and FIG. 4 is an enlarged partial cross-sectional view.

Claims (1)

【特許請求の範囲】 1 くいの設置予定地へ、所定のくい穴を掘削し、この
くい穴にコンクリートくいを挿入設置する工法において
、コンクリートくいを挿入後、コンクリートくいの上部
側壁と、くい穴内壁との間隙部へ所定長さに亘つてくい
周固定液を注入しつつ撹拌して、コンクリートくいの上
部を固定することを特徴としたプレボリーングによるく
い設置工法 2 コンクリートくいは、下端へ所定長さに亘って大径
部を連設した特許請求の範囲第1項記載のプレボーリン
グによるくい設置工法 3 くい周固定液の噴射は、支持材により水平に支持さ
れた注液管のノズルにより行われた特許請求の範囲第1
項記載のプレボーリングによるくい設置工法 4 支持材は円筒又は枠材とした特許請求の範囲第1項
記載のプレボーリングによるくい設置工法
[Scope of Claims] 1. In a construction method in which a predetermined pile hole is excavated in a site where the pile is planned to be installed, and a concrete pile is inserted and installed into the hole, after the concrete pile is inserted, the upper side wall of the concrete pile and the pile hole are Pile installation method 2 using pre-boiling, which is characterized by fixing the upper part of the concrete pile by injecting and stirring the circumferential fixing liquid over a predetermined length into the gap between the concrete pile and the inner wall. Pile installation method 3 by pre-boring recited in claim 1, in which a large-diameter portion is continuously provided throughout the pile The pile circumferential fixing liquid is sprayed by a nozzle of a liquid injection pipe supported horizontally by a support material. Claim No. 1
4. Pile installation method by pre-boring as described in Claim 4. Pile installation method by pre-boring as described in Claim 1, in which the supporting material is a cylinder or a frame material.
JP16920086A 1986-07-18 1986-07-18 Setting work of pile by preboring Granted JPS6327617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16920086A JPS6327617A (en) 1986-07-18 1986-07-18 Setting work of pile by preboring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16920086A JPS6327617A (en) 1986-07-18 1986-07-18 Setting work of pile by preboring

Publications (2)

Publication Number Publication Date
JPS6327617A true JPS6327617A (en) 1988-02-05
JPH0561409B2 JPH0561409B2 (en) 1993-09-06

Family

ID=15882063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16920086A Granted JPS6327617A (en) 1986-07-18 1986-07-18 Setting work of pile by preboring

Country Status (1)

Country Link
JP (1) JPS6327617A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006169827A (en) * 2004-12-16 2006-06-29 Jfe Steel Kk Screwed pile and its construction method
JP2014125788A (en) * 2012-12-26 2014-07-07 Kajima Corp Foundation pile construction method
CN106522210A (en) * 2016-11-09 2017-03-22 中交路桥华东工程有限公司 Pile bottom anchoring structure for bare rock geological stressed steel pipe pile
JP2018135683A (en) * 2017-02-21 2018-08-30 株式会社三誠 Ground improvement device and ground improvement method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57133920A (en) * 1981-02-12 1982-08-18 Takechi Koumushiyo:Kk Method and apparatus for strengthening horizontal bearing force of pile

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57133920A (en) * 1981-02-12 1982-08-18 Takechi Koumushiyo:Kk Method and apparatus for strengthening horizontal bearing force of pile

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006169827A (en) * 2004-12-16 2006-06-29 Jfe Steel Kk Screwed pile and its construction method
JP4604698B2 (en) * 2004-12-16 2011-01-05 Jfeスチール株式会社 Screwed pile and its construction method
JP2014125788A (en) * 2012-12-26 2014-07-07 Kajima Corp Foundation pile construction method
CN106522210A (en) * 2016-11-09 2017-03-22 中交路桥华东工程有限公司 Pile bottom anchoring structure for bare rock geological stressed steel pipe pile
JP2018135683A (en) * 2017-02-21 2018-08-30 株式会社三誠 Ground improvement device and ground improvement method

Also Published As

Publication number Publication date
JPH0561409B2 (en) 1993-09-06

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