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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