JPS6033189Y2 - Expanded head for foundation piles - Google Patents
Expanded head for foundation pilesInfo
- Publication number
- JPS6033189Y2 JPS6033189Y2 JP6751580U JP6751580U JPS6033189Y2 JP S6033189 Y2 JPS6033189 Y2 JP S6033189Y2 JP 6751580 U JP6751580 U JP 6751580U JP 6751580 U JP6751580 U JP 6751580U JP S6033189 Y2 JPS6033189 Y2 JP S6033189Y2
- Authority
- JP
- Japan
- Prior art keywords
- seat plate
- pipe
- joint pipe
- blade
- expanding head
- 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.)
- Expired
Links
Landscapes
- Piles And Underground Anchors (AREA)
Description
【考案の詳細な説明】
本考案は基礎杭を基礎地盤に沈設する際に及び基礎杭の
支持力を強化する為に使用される基礎杭用の拡底ヘッド
に係り、更に詳しくは基礎杭の外形より１０〜３０％大
きな外形を有する中空逆円錐形筒体の外周面に複数本の
傾斜状切削刃を突設すると共に筒体の先端に掘削刃を突
設置し、かつその内部に回転ロッドど連結し得るジヨイ
ント装置及び回転ロッドより供給されるセメントミルク
を筒体の先端より注出し得るエアーパイプ等を装着して
なる基礎杭用の拡底ヘッドに関するものである。[Detailed description of the invention] The present invention relates to a bottom expansion head for foundation piles used when sinking foundation piles into the foundation ground and to strengthen the supporting capacity of foundation piles. A plurality of inclined cutting blades are provided protrudingly on the outer peripheral surface of a hollow inverted conical cylinder having an outer diameter 10 to 30% larger than that of the cylinder, and a digging blade is protrudingly installed at the tip of the cylinder, and a rotating rod or the like is installed inside the cylinder. This invention relates to a bottom expanding head for foundation piles, which is equipped with a joint device that can be connected and an air pipe that can pour out cement milk supplied from a rotating rod from the tip of a cylindrical body.
図により本考案の一実施例を具体的に説明すると、第１
図乃至第３図に於て、１は基礎杭の外径より１０〜３０
％大きい外径を持った金属製円管であって、その外周面
には所定の均一な間隔を保った３本の傾斜状切削刃２が
突設され、かつその内部には座板３が水平に取付けられ
、又座板３の中央部にはジヨイントパイプ４が上下に突
出して取付けられている。To specifically explain one embodiment of the present invention with reference to the drawings, the first embodiment is as follows.
In Figures to Figure 3, 1 is 10 to 30 from the outer diameter of the foundation pile.
It is a circular metal tube with a large outer diameter, and has three inclined cutting blades 2 protruding from its outer circumferential surface with a predetermined uniform interval, and a seat plate 3 inside. It is mounted horizontally, and a joint pipe 4 is mounted at the center of the seat plate 3 so as to protrude vertically.
次に５，６は夫々下先端部が先細三角状に構成されたフ
レームパネルであって、一方のパネル５の下先端には逆
Ｕ状掘削刃７が一体的に突設され、又他方のパネル６の
下部両側には三角状掘削刃８が一体的に突設され、更に
このパネル５，６は相互に十字状に噛合されると共にそ
の上端は前記座板３の下面に又その上側面に円管１の内
面に夫々溶接固定されている。Next, reference numerals 5 and 6 are frame panels each having a tapered triangular lower end, and an inverted U-shaped digging blade 7 is integrally protruded from the lower end of one panel 5, and the other A triangular digging blade 8 is integrally protruded from both sides of the lower part of the panel 6, and the panels 5 and 6 are interlocked with each other in a cross shape, and the upper end thereof is attached to the lower surface of the seat plate 3 and the upper surface thereof. are welded and fixed to the inner surface of the circular tube 1, respectively.
９は上端が前記ジョイントパイプ４に又その下端が逆Ｕ
状掘削刃７に配設されたエアーパイプであって、ジヨイ
ントパイプ４より供給されるセメントミルクをこの下端
より注出し得る如く構成されている。9 has an upper end connected to the joint pipe 4 and a lower end connected to an inverted U.
It is an air pipe disposed on the shaped excavating blade 7, and is configured so that the cement milk supplied from the joint pipe 4 can be poured out from its lower end.
続いて１０は前述の如く構成された枠体の円管１の下方
内部及びパネル５，６の周りに打設されたコンクリート
ブロックであって、これによって拡底ヘッドの下部を逆
円錐状に形威し、かつそのブロック１０の両側面に掘削
刃８を又その下先端に掘削刃７を夫々突出構成している
。Next, reference numeral 10 denotes a concrete block placed inside the lower part of the circular tube 1 of the frame constructed as described above and around the panels 5 and 6, which forms the lower part of the expanded bottom head into an inverted conical shape. Further, a digging blade 8 is formed on both sides of the block 10, and a digging blade 7 is formed projecting from the lower tip thereof.
上記実施例に於ける切削刃２は必要に応じて増減し得る
ことは当然可能である。Of course, the number of cutting blades 2 in the above embodiment can be increased or decreased as necessary.
本考案に係る払底ヘッドの使用に当っては第４図に示す
如く、この拡底ヘッドを基礎地盤Ｇに起立し、別に用意
した基礎杭Ａの下端をこの拡底ヘッドの内部に挿入する
と共にこれを座板３で支持し、次にダブルアースオーガ
ー１１の回転ロッド１２を基礎杭Ａの中に挿入してその
先端を拡底ヘッドのジヨイントパイプ４と連結し、この
拡底ヘッドを一定方向に回転させることによって掘削刃
７．８及び切削刃２の作用によって地盤Ｇを徐々に掘削
して下降させ、所定の位置迄これが沈下した時に回転ロ
ッド１２をジヨイントパイプ４より切離して徐々に抜取
りながらこれの先端からセメントミルクを注出し、基礎
杭Ａの内部と拡底ヘッド内にこれを充填することによっ
て基礎杭Ａの先端のに拡底ヘッドを一体的に連結固定し
、杭Ａの先端部の拡大支持部として構成することが出来
る。When using the bottom-expanding head according to the present invention, as shown in FIG. It is supported by the seat plate 3, and then the rotating rod 12 of the double earth auger 11 is inserted into the foundation pile A, its tip is connected to the joint pipe 4 of the bottom expansion head, and this bottom expansion head is rotated in a fixed direction. As a result, the ground G is gradually excavated and lowered by the action of the excavating blade 7.8 and the cutting blade 2, and when it has sunk to a predetermined position, the rotating rod 12 is separated from the joint pipe 4 and gradually extracted. By pouring cement milk from the tip and filling it inside the foundation pile A and the bottom expansion head, the bottom expansion head is integrally connected and fixed to the top of the foundation pile A, and the expansion support part of the top of the pile A is formed. It can be configured as
本考案に係る拡底ヘッドは上述の如く、円管、座板、ジ
ヨイントパイプ、２枚のフレームパネルを夫々相互に溶
接して枠体を形威し、この枠体の内部及び周りにコンク
リートを打設して一体的に構成したので、全体が極めて
岩乗にして丈夫であり、かつ下先端と下部両側に設けら
れた掘削刃が夫々フレームパネルと一体に構成されてい
るので、ダブルオーガーによって同経される際にジヨイ
ントパイプに掛るトルクを座板、フレームパネルを介し
てこの掘削刃に直接伝達することが出来、掘削力が大き
く、更に円筒の外周面には複数本の傾斜状切削刃が突設
されているので、これによって掘削時に排出する残土を
回転すると共に掘削孔の内壁面に押圧固着させて地盤表
面えの排土を少くすることが出来、しかも拡底ヘッドを
使用することによって基礎杭の先端断面積Ｍを大きくし
て強力な支持力を得ることが出来る等の特徴を有するも
のである。As mentioned above, the bottom expanding head according to the present invention has a frame body formed by welding a circular pipe, a seat plate, a joint pipe, and two frame panels to each other, and concrete is poured inside and around the frame body. Since it is constructed as a single piece by pouring, the whole structure is extremely durable even when riding on rocks.The lower tip and the excavating blades on both sides of the lower part are constructed integrally with the frame panel, so it can be easily removed using a double auger. The torque applied to the joint pipe when the pipe is cut can be directly transmitted to the cutting blade through the seat plate and frame panel, resulting in a large digging force, and the outer circumferential surface of the cylinder has multiple inclined cuts. Since the blade is protruded, it is possible to rotate the remaining soil discharged during excavation and press it to the inner wall of the excavation hole, thereby reducing the amount of soil discharged from the ground surface.Moreover, it is possible to use a bottom-expanding head. This has the feature that it is possible to increase the cross-sectional area M of the tip of the foundation pile and obtain a strong supporting force.
第１図及び第２図は枠体の説明図、第３図は完成説明図
、第４図は使用説明図である。
１：円管、２：切削刃、３：座板、４：パイプ、５，６
：パネル、７，８：掘削刃、１０ニブロツク、１１：ア
ースオオーガ、Ａ：基礎杭。1 and 2 are explanatory views of the frame, FIG. 3 is an explanatory view of the completed product, and FIG. 4 is an explanatory view of its use. 1: Circular pipe, 2: Cutting blade, 3: Seat plate, 4: Pipe, 5, 6
: Panel, 7, 8: Drilling blade, 10 Ni block, 11: Earth auger, A: Foundation pile.
Claims (3)
る逆円錐形筒体の上部外周面に所定の間隔を保って複数
本の傾斜状切削刃２を突設し、かつ筒体の下部両側に掘
削刃８を突設し、更に筒体の下先端に掘削刃７を突設し
て構成してなる基礎杭用の拡底ヘッド。(1) A plurality of inclined cutting blades 2 are provided protrudingly at a predetermined interval on the upper outer peripheral surface of an inverted conical cylinder having a seat plate 3 and a joint pipe 4 inside, and This bottom expanding head for foundation piles is constructed by protruding excavation blades 8 from both sides of the lower part and further protruding from the bottom end of the cylindrical body.
取付け、かつ下先端に掘削刃７を有する三角状フレーム
パネル５と下部両側に掘削刃８を有する三角状フレーム
パネル６とを相互に十字状に組合せると共にこれを前記
円管１の内面と座板３の下面とに溶接し、更にこれ等の
円管１の内面及びフレームパネル５，６の周りにコシク
リートを打設してコンクリートブロック１０を形成して
なる実用新案登録請求の範囲第１項記載の基礎杭用の拡
底ヘッド。(2) A seat plate 3 and a joint pipe 4 are respectively installed in the inner pipe 1, and a triangular frame panel 5 has a digging blade 7 at the bottom end and a triangular frame panel 6 has a digging blade 8 on both sides of the bottom. are combined into a cross shape and welded to the inner surface of the circular tube 1 and the lower surface of the seat plate 3, and cosiclete is cast around the inner surface of the circular tube 1 and the frame panels 5 and 6. A bottom expanding head for a foundation pile according to claim 1, which is obtained by forming a concrete block 10 by forming a concrete block 10.
削刃７に亘ってエアーパイプ９を配設してなる実用新案
登録請求の範囲第１項記載の基礎杭用の拡底ヘッド。(3) The bottom expanding head for a foundation pile according to claim 1, wherein an air pipe 9 is disposed from the bottom of the joint pipe 4 to the excavation blade 7 at the bottom end of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6751580U JPS6033189Y2 (en) | 1980-05-19 | 1980-05-19 | Expanded head for foundation piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6751580U JPS6033189Y2 (en) | 1980-05-19 | 1980-05-19 | Expanded head for foundation piles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56168588U JPS56168588U (en) | 1981-12-12 |
| JPS6033189Y2 true JPS6033189Y2 (en) | 1985-10-03 |
Family
ID=29661516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6751580U Expired JPS6033189Y2 (en) | 1980-05-19 | 1980-05-19 | Expanded head for foundation piles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6033189Y2 (en) |
-
1980
- 1980-05-19 JP JP6751580U patent/JPS6033189Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56168588U (en) | 1981-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6033189Y2 (en) | Expanded head for foundation piles | |
| CN208701661U (en) | The squeezed steel reinforcement cage reinforcement bored under-reamed filling pile of umbrella | |
| JPS5835710Y2 (en) | Expanded head for foundation piles | |
| JP3760316B2 (en) | Intermediate striking pile and its construction method | |
| CN217105183U (en) | Steel open caisson construction system based on micro-jacking pipe-shaking well technology | |
| CN102220760B (en) | Method for casting deep inverted T-shaped pile | |
| JP6707778B2 (en) | Excavation member and ground improvement method using the same | |
| JPH09100532A (en) | Bearing pile and tip member for bearing pile | |
| CN101761348B (en) | Multi-directional anchor pile one-step formed drilling tool | |
| JPS6218684B2 (en) | ||
| JPH04185813A (en) | Formation of soil-cement composite pile | |
| CN208251078U (en) | A kind of bottom-expanding sinking-pipe pilework | |
| JP4129836B2 (en) | Construction method of foundation pile, ready-made pile with spiral wing | |
| JPS6115209B2 (en) | ||
| JPH03447B2 (en) | ||
| JPS5835711Y2 (en) | Expanded head for foundation piles | |
| JP2002105956A (en) | Charging of mc type widening bottom pipe anchor into ground | |
| JPS6146609B2 (en) | ||
| CN211872974U (en) | Grouting combined pile foundation | |
| JPS59192125A (en) | Settlement work of concrete pile with screw | |
| CN108547284A (en) | A kind of bottom-expanding sinking-pipe pilework and construction method | |
| JPS6250516A (en) | Formation work of composite pile | |
| CN114875886B (en) | Construction method of expanded diameter vibroflotation gravel pile | |
| JPS6049733B2 (en) | Foundation pile construction method | |
| JPS6319390Y2 (en) |