JPS6327617A - Setting work of pile by preboring - Google Patents
Setting work of pile by preboringInfo
- 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
Links
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 239000004568 cement Substances 0.000 abstract description 13
- 239000008267 milk Substances 0.000 abstract description 13
- 210000004080 milk Anatomy 0.000 abstract description 13
- 235000013336 milk Nutrition 0.000 abstract description 13
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000834 fixative Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
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.
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)
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.
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)
| 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)
| 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 |
-
1986
- 1986-07-18 JP JP16920086A patent/JPS6327617A/en active Granted
Patent Citations (1)
| 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)
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |