JPS5924026A - Pile formation work - Google Patents
Pile formation workInfo
- Publication number
- JPS5924026A JPS5924026A JP13329482A JP13329482A JPS5924026A JP S5924026 A JPS5924026 A JP S5924026A JP 13329482 A JP13329482 A JP 13329482A JP 13329482 A JP13329482 A JP 13329482A JP S5924026 A JPS5924026 A JP S5924026A
- Authority
- JP
- Japan
- Prior art keywords
- casing
- pile
- rotary shaft
- hollow rotary
- tip
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
- E02D3/126—Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Piles And Underground Anchors (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Earth Drilling (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、フィルコンクリートの杭（フィルパイル）を
造る工法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a construction method for building fill concrete piles.
かかるフィルパイル作成には、先端に掘削刃を有する中
空回転軸の掘削装置が使用され、掘削刃で掘削した土砂
を該中空回転軸先＆Ｉｉ、ｌから注出するヘントナイト
合わせてソイルコンクリ−１・を作す出していくもので
ある。To create such a fill pile, an excavation device with a hollow rotating shaft having a cutting blade at the tip is used, and the earth and sand excavated by the cutting blade is poured out from the tip of the hollow rotating shaft. It is something that is created and put out.
ところで、地盤の質によっては杭孔造成中に孔壁が１１
１４弱で崩壊することがあり、その結果作成したフィル
パイルの安定性を損なうおそれがある。By the way, depending on the quality of the ground, the hole wall may be
14, it may collapse, and as a result, the stability of the created fill pile may be impaired.
本発明の目的はかかる孔壁の崩壊を防止し、支持地盤と
一体化した信頼性の高いフィルコンクリートパイルか得
られる杭造成工法を提供することにある。It is an object of the present invention to provide a pile construction method that prevents such collapse of the hole wall and that allows a highly reliable fill concrete pile that is integrated with the supporting ground to be obtained.
しかじでこの目的は本発明によれば、ケーシングと先端
に掘削刃を有する中空回転軸との組合せ装置を用いて、
施工すべき杭とほぼ等しい直径で削孔しながら、掘削し
た土砂と固結剤とを混合してフィルコンクリートを作成
し、該フィルコンクリートの一部をケーシング内から外
に排出して孔壁に圧密しながらソイルコンクリ−１−パ
イルを造成することにより達成される。According to the present invention, this purpose is achieved by using a combination device of a casing and a hollow rotary shaft having a cutting blade at the tip.
While drilling a hole with a diameter approximately equal to that of the pile to be constructed, fill concrete is created by mixing the excavated earth and sand with a hardening agent, and a portion of the fill concrete is discharged from the inside of the casing to the outside and attached to the hole wall. This is achieved by building soil concrete one-pile with consolidation.
以ド、図面について本発明工法の実施例を．ｉ￥♀ＤＩ
に説明する。The following is an example of the construction method of the present invention with reference to the drawings. i￥♀DI
Explain.
まず、本発明に使用する装置について説明すると、第１
図間該装置の実施例を示ず一部切欠いた側面図１．第２
図は同上要部の横１ｖ旨Ｉ２而図で、図中１は図示しな
い建設車輌に起伏自在に立設したリーダーマスト、２は
３亥リーダーマスト１に沿っ′で上下動する駆動部、３
は該駆動部２に上端を連結した中空回転軸を示す。First, to explain the device used in the present invention, the first
1. Partially cut away side view showing the embodiment of the device. Second
The figure is a horizontal view of the main part of the same, in which 1 is a leader mast installed on a construction vehicle (not shown) so that it can rise and fall freely, 2 is a drive unit that moves up and down along the leader mast 1, and 3
indicates a hollow rotating shaft whose upper end is connected to the drive section 2.
この中空回転軸３の外側にケーシング４を配設し、その
上端も前記駆動部２に連結して中空回転軸３とは反対の
方向に回転させるようにする。該ケーシング４の先端に
刃口を形成してもよい。A casing 4 is disposed outside the hollow rotating shaft 3, and its upper end is also connected to the drive section 2 so as to rotate the hollow rotating shaft 3 in the opposite direction. A cutting edge may be formed at the tip of the casing 4.
中空回転軸３の先端にアースオーカーヘノＩ’５を接続
して、軸３の先端に掘削刃６とその上部に位置するスク
リュー羽根７を設け、また該オーガーヘット５の先端に
は固結剤等の注出口８が形成されている。An earth ocher hex I'5 is connected to the tip of the hollow rotary shaft 3, and a digging blade 6 and a screw blade 7 located above it are provided at the tip of the shaft 3, and a solidifying agent is provided at the tip of the auger head 5. A spout 8 such as the above is formed.
中空回転軸３の途中に、上下方向に適宜の間隔で外側横
力向に突出する攪（′Ｉ〕翼９を取り付りる。In the middle of the hollow rotating shaft 3, stirring ('I) blades 9 projecting outward in the direction of lateral force are attached at appropriate intervals in the vertical direction.
一方、前記ケーシング４の内側に、中空回転軸３の攪拌
翼９，９の間に位置するように第２の攪拌翼１０を突設
する。ずなわら、撹拌翼９と１０とを上下方向に交換に
配置したものである。ごの図に示すように一部ケーシン
グをくり抜き、ここに′：Ａ１０を突設した板をはめ込
みかつｌ′６接するようにすればケーシング４の外側か
ら加工でき便利である。On the other hand, a second stirring blade 10 is protrudingly provided inside the casing 4 so as to be located between the stirring blades 9 of the hollow rotating shaft 3. In other words, the stirring blades 9 and 10 are arranged interchangeably in the vertical direction. It is convenient to process from the outside of the casing 4 by hollowing out a part of the casing as shown in the figure, and inserting a plate with protruding parts ':A10 therein so that they are in contact with each other.
なお２図示では攪拌翼９．１０とともに各々相対向する
ちのが同一水平レベルで２枚直線上に並ぶ場合を示した
が必すしもこれに限定されるものでなく、また各板９．
１０の形状も断続的に横力向に突出するものであれは他
の形状のものでもよい。Although the two figures show a case where the stirring blades 9, 10 and the two plates facing each other are lined up in a straight line at the same horizontal level, the configuration is not limited to this, and each plate 9.
The shape of 10 may also be any other shape as long as it protrudes intermittently in the lateral force direction.
ところで、ＰｊＬ ｆ’ｌ′−翼９と１０との翼の向き
、ずなわら各翼自体の傾斜方向は相対向するものとする
ことか望ましい。By the way, it is desirable that the directions of the PjL f'l'-wings 9 and 10, as well as the inclination directions of the wings themselves, are opposite to each other.
ケーシング４に、円形の透孔１１を上）に複数個形成す
る。該透孔１１の大きさ、形状、数、及び位置は特に限
定はないが、攪拌翼１０の取付ｒ（１；をさ＆）、かつ
攪１！１４！ ９と同一レヘルが望ましい。A plurality of circular through holes 11 are formed in the casing 4 (at the top). The size, shape, number, and position of the through-holes 11 are not particularly limited, but the size, shape, number, and position of the through-holes 11 are not particularly limited. The same level as 9 is desirable.
次に上述ＪＡｉ削装置を用いて行う本発明工法の実施例
について説明する。第５図〜第８図はソ、イルコンクリ
ートパイルで柱列杭を施」二する場合の側面図、第９図
は第７図の、第１０図は第８図の横断平面図である。Next, an embodiment of the method of the present invention using the above-mentioned JAi cutting equipment will be described. FIGS. 5 to 8 are side views of the case where column piles are installed using solid concrete piles, FIG. 9 is a cross-sectional plan view of FIG. 7, and FIG. 10 is a cross-sectional plan view of FIG. 8.
まず、第５図に示すように杭造成予定地に中空回転軸３
とケーシング４とを和瓦に逆方向に回転させながら挿入
する。中空回転軸３の先端のオーガーヘッド５の掘削刃
６が地盤を削孔し、同時に、オーガーヘッド５の先端の
注出口８から回転軸３内を通過してきたヘントナイト、
セメントミルクの混合液等からなる固結剤１２を注出す
る。First, as shown in Figure 5, a hollow rotating shaft 3 is placed on the planned site for pile construction.
and casing 4 are inserted into the Japanese tiles while rotating in the opposite direction. The excavation blade 6 of the auger head 5 at the tip of the hollow rotating shaft 3 drills a hole in the ground, and at the same time, hentonite passes through the rotating shaft 3 from the spout 8 at the tip of the auger head 5.
A setting agent 12 made of a mixture of cement milk or the like is poured out.
掘削刃６での掘削土砂と固結剤１２とは第６図に示すよ
うにスクリュー羽根７で上方Ｑこ送られ、攪拌翼９と１
０で順次交互に攪拌されてフィルコンクリートがつくら
れる。The earth and sand excavated by the excavation blade 6 and the solidifying agent 12 are sent upward Q by the screw blades 7 as shown in FIG.
Fill concrete is created by stirring alternately at 0.
この際回転軸３とケーシング４とは逆方向に回転してお
り、この攪拌は翼９と１０とではりｌ：ｌスされた状態
で行なわれ、その結果充分にごねられた良質のフィルコ
ンクリートが得られる。At this time, the rotating shaft 3 and the casing 4 are rotating in opposite directions, and this agitation is performed with the blades 9 and 10 being in contact with each other, resulting in a well-kneaded, high-quality filter. Concrete is obtained.
また、ソイルコンクリ−１・の一部は遠心力でケーシン
グ４に設けた透孔１１から外に１排出され、ケーシング
４と孔壁Ｉ３の間に浸め出していく。Further, a part of the soil concrete 1 is discharged outside from the through hole 11 provided in the casing 4 by centrifugal force, and seeps out between the casing 4 and the hole wall I3.
そして、回転するケーシング４の外周面で孔壁１３に圧
密され、ソイルコンクリ−１−をぬりつけられた壁孔１
３は堅固な面を有するものとなる。従って１例えは所望
深度まで掘削し中空回転軸３及び１、ケーシング４をと
もに引き抜く時に壁孔１３が崩れ落ちる心配はない。ま
た、作成されたフィルコンクリートパイルと壁孔Ｉ３と
の結合も強いものとなり安定した杭支持力がｉｑられる
。Then, the wall hole 1 is sealed with the hole wall 13 on the outer peripheral surface of the rotating casing 4, and the soil concrete 1- is applied.
3 has a solid surface. Therefore, for example, there is no fear that the wall hole 13 will collapse when excavating to a desired depth and pulling out both the hollow rotary shafts 3 and 1 and the casing 4. Moreover, the connection between the created fill concrete pile and the wall hole I3 becomes strong, and a stable pile supporting force is achieved.
第７図、第１０図に示すように一本のフィルコンクリー
トパイル１４が形成されたなら、次工程として該パイル
１４の一端を削り取るような形で同様な作業を行って次
のパイル１４“を一部パイル１４にラップさせて形成す
る。Once one fill concrete pile 14 has been formed as shown in FIGS. 7 and 10, the next step is to scrape off one end of the pile 14 and perform a similar operation to form the next pile 14''. It is formed by partially wrapping the pile 14.
さらに、第８図、第１０図に示すように第２番目のパイ
ル１４′にラップさせて第３番のパイル１４″を造成し
、−力筒１のパイル１４内にはソートパイルＩ５を建込
め、このシートパイル１５もＢ１次各柱の中で縦列接続
さ一ヒていく。シートパイル１５のＩＬわりにＨ鋼を用
いてもよい。Furthermore, as shown in FIGS. 8 and 10, a third pile 14'' is created by wrapping it around the second pile 14', and a sorting pile I5 is constructed in the pile 14 of the first pile. In addition, the sheet piles 15 are also connected in tandem in each B primary column.H steel may be used instead of the IL of the sheet piles 15.
以上述べたように本発明の杭造成工法は、ケーシングと
先醪１１に掘削刃を有する中空回転軸との組合・Ｕ装置
を用いて、施工すべき杭とほぼ等しい直ｉ″ｆ：で削孔
しながら、掘削した土砂と固結剤とを混合してソイルコ
ンクリートを作成し、該ソイルコンクリ−１・の一部を
ゲージング内から外に排出して孔壁に圧密しなからソイ
ルコンクリートパイルを造成することとしたので、地盤
か軟弱であっても杭孔壁が崩壊することを防止でき、安
定した支持力を期待できる信頼性の高い杭が得られるも
のである。As described above, the pile construction method of the present invention uses a combination of a casing and a hollow rotary shaft having a cutting blade on the tip 11 and a U device to cut the pile at a straight line i″f: approximately equal to the pile to be constructed. While drilling, the excavated earth and sand are mixed with a compaction agent to create soil concrete, and a part of the soil concrete is discharged from inside the gauging to the outside and consolidated on the hole wall, and then a soil concrete pile is formed. By creating a pile, the pile hole wall can be prevented from collapsing even if the ground is soft, and highly reliable piles with stable bearing capacity can be obtained.
第１図は本発明に使用する装置の実施例を示す一部切欠
いた側面図、第２図は同−Ｌ要部の一部１り切欠いた側
面図、第３図は要部の横断平面図、第４図は第２図の部
分拡大図、第５図〜第８図は本発明工法の各工程を示す
側面図、第９図は第７図の、第１０図は第８図の横断平
面図である。
■・・・ リーダーマス１−２・・・ 駆！ｌす１部３
・・・ 中空回転軸 ４・・・ 回転ケーシング５
・・・ ア−スオーカ＝−・ノド
６・・・ 掘削刃 ７・・・ スクリュー羽根
８・・・ 注出口 ９，１０・・・ 攪拌翼１１・
・・ 透孔 １２・・・ 固結剤１３・・・
孔壁
１４、 １４’ 、 １４”・・・フィルコンクリート
パイル１５・ ンートパイル
出願人 株式会社 丸徳基業
慎１ 図
第２図Fig. 1 is a partially cutaway side view showing an embodiment of the device used in the present invention, Fig. 2 is a partially cutaway side view of the main part of the same L, and Fig. 3 is a transverse plane of the main part. Figure 4 is a partially enlarged view of Figure 2, Figures 5 to 8 are side views showing each step of the construction method of the present invention, Figure 9 is the same as Figure 7, and Figure 10 is the same as Figure 8. FIG. ■... Leader mass 1-2... Kaku! lsu part 3
... Hollow rotating shaft 4... Rotating casing 5
... Earth oaker = -・Groove 6... Excavation blade 7... Screw blade 8... Outlet 9, 10... Stirring blade 11.
... Through hole 12... Consolidating agent 13...
Hole wall 14, 14', 14''...Fill concrete pile 15/Nt pile Applicant: Shin Marutoku Co., Ltd. Figure 2
Claims (1)
せ装置を用いて、施工すべき杭とほぼ等しい直径で削孔
しながら、掘削した土砂と固結剤とを混合してフィルコ
ンクリートを作成し、該フィルコンクリートの一部をケ
ーシング内から外に排出して゛孔壁を圧密させながらソ
イルコンクリートパイルを造成することを特徴とする杭
造成工法。Using a device that combines a casing and a hollow rotary shaft with a drilling blade at the tip, fill concrete is created by mixing the excavated earth and sand with a consolidation agent while drilling a hole with a diameter approximately equal to that of the pile to be constructed. A pile construction method characterized in that a soil concrete pile is created while a part of the fill concrete is discharged from inside the casing to consolidate the hole wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13329482A JPS5924026A (en) | 1982-07-30 | 1982-07-30 | Pile formation work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13329482A JPS5924026A (en) | 1982-07-30 | 1982-07-30 | Pile formation work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5924026A true JPS5924026A (en) | 1984-02-07 |
| JPH03447B2 JPH03447B2 (en) | 1991-01-08 |
Family
ID=15101286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13329482A Granted JPS5924026A (en) | 1982-07-30 | 1982-07-30 | Pile formation work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5924026A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6351515A (en) * | 1986-08-20 | 1988-03-04 | Mitani Sekisan Kk | Excavator for ground improvement |
| JPH02132735U (en) * | 1989-04-06 | 1990-11-05 | ||
| JPH06146260A (en) * | 1992-11-10 | 1994-05-27 | Ask Kenkyusho:Kk | Forming method of columnar body in ground and device therefor |
| DE10216952B4 (en) * | 2002-03-26 | 2007-08-09 | Harald Gollwitzer Gmbh | Method for producing a mix pile in a substrate |
| CN105926596A (en) * | 2016-04-26 | 2016-09-07 | 浙江水利水电学院 | Stirring device and method for stirring sea mud |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4589813B2 (en) * | 2005-06-08 | 2010-12-01 | 株式会社トーヨーアサノ | How to build an enlarged bulb for root consolidation |
-
1982
- 1982-07-30 JP JP13329482A patent/JPS5924026A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6351515A (en) * | 1986-08-20 | 1988-03-04 | Mitani Sekisan Kk | Excavator for ground improvement |
| JPH02132735U (en) * | 1989-04-06 | 1990-11-05 | ||
| JPH06146260A (en) * | 1992-11-10 | 1994-05-27 | Ask Kenkyusho:Kk | Forming method of columnar body in ground and device therefor |
| DE10216952B4 (en) * | 2002-03-26 | 2007-08-09 | Harald Gollwitzer Gmbh | Method for producing a mix pile in a substrate |
| CN105926596A (en) * | 2016-04-26 | 2016-09-07 | 浙江水利水电学院 | Stirring device and method for stirring sea mud |
| CN105926596B (en) * | 2016-04-26 | 2019-04-26 | 浙江水利水电学院 | It is a kind of for stirring the agitating device and stirring means of ooze |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03447B2 (en) | 1991-01-08 |
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