JPS60102416A - Drilling pile - Google Patents
Drilling pileInfo
- Publication number
- JPS60102416A JPS60102416A JP20738483A JP20738483A JPS60102416A JP S60102416 A JPS60102416 A JP S60102416A JP 20738483 A JP20738483 A JP 20738483A JP 20738483 A JP20738483 A JP 20738483A JP S60102416 A JPS60102416 A JP S60102416A
- Authority
- JP
- Japan
- Prior art keywords
- pile
- tip
- entire length
- formed over
- center
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/56—Screw piles
Abstract
Description
【発明の詳細な説明】
本発明は、杭外周の先端沓部分から上方にかけて適当な
ピッチで螺旋鍔を設けてなるコンクリート製のねじ込み
杭に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a screw-in concrete pile in which spiral flanges are provided at appropriate pitches from the tip of the outer periphery of the pile upward.
従来比較的小径のコンクリ−１・製基媚杭においては打
撃による騒音を防止するため、杭本体の外周に螺旋法の
鍔を設けて回転と圧入によって基価地盤に埋設する手段
がとられている。しかし、これらの杭は螺旋鍔を設けて
いるとはいえ、杭の成形に際しては従来の遠心力利用の
成形であるため杭の中心には円形の穴が形成されて−い
る。したがって、その回１除圧入に当っては杭頭を回動
するチャックで挟持して回転を与えながら圧入している
のか税法である。このため長さのある杭はある程度地中
に進入してからは杭頭の一点支持のため回転に対して土
の抵抗が大きく杭自体に「ねじれ」が生じて杭に亀裂が
入ったり極端な場合には杭が破壊するという重大事故の
原因となっていた。Conventionally, in order to prevent noise caused by impact on relatively small diameter concrete base piles, a spiral collar was installed around the outer periphery of the pile body and the pile was buried in the base ground by rotation and press-fitting. There is. However, although these piles are provided with a spiral flange, a circular hole is formed in the center of the pile because conventional centrifugal force is used to form the pile. Therefore, in the first round of press-fitting, the pile head is clamped by a rotating chuck and press-fitted while applying rotation.It is a tax law. For this reason, once a long pile has penetrated into the ground to a certain extent, the pile head is supported at a single point, so the soil's resistance to rotation is large, causing the pile itself to ``twist,'' causing cracks in the pile or extreme damage. In some cases, the piles were destroyed, causing serious accidents.
本発明のねじ込み螺旋杭は上述の如き事故を防止するた
めに開発されたものであって、螺旋杭本体の全長に亘っ
て中心に異形断面を有する回転ロンドの形状に合致した
挿入用の空洞を成形し、杭の地盤への回転圧入に当って
回転ロッドを杭の先端から杭頭にかけての全長に挿入し
てこの回転ロンドの回転によって杭全体を同じ力で回転
させてねじ込む如くして杭の「ねじれ」による破壊を防
ぎ円滑に地盤に埋設できる螺旋杭を提供するものである
。The screwed helical pile of the present invention was developed in order to prevent the above-mentioned accidents, and has an insertion cavity that matches the shape of the rotary rond that has an irregular cross section at the center over the entire length of the helical pile body. When the pile is formed and rotatably press-fitted into the ground, a rotary rod is inserted over the entire length from the tip of the pile to the pile cap, and the rotation of this rotary rod causes the entire pile to rotate with the same force and screw into the pile. The present invention provides a helical pile that can be smoothly buried in the ground by preventing destruction due to "twisting".
流会１園而により本発明のねじ込み杭の（（１４造を説
２ψ４すると、第１図は不発り」のねじ込み杭の全体正
面図を示し、（１）１４杭本体であり、（２）は杭（１
）の外周の先端から上方にかけて適当なピッチで設けで
ある螺旋鍔である。（３）ンよ杭先端ＶＣ翠°宥する鉄
製の酌金具である。この踏金具に（）の形状は第゛３図
の拡大図に示すように截頭円雌伏としその銭頭部に土の
切削を良くするための切刃（３）′を設けるものとし、
又杭の外形は全長のほぼ中間の位置から先端方向にかけ
て緩いテーパーを付ｌ〜てやや先＋Ｍｌｌりとする。そ
し１本発明の螺旋杭は第３図の断面図に示すように杭（
１１の中心の全長（（亘って異形断面を有する回転ロン
ド（図示していない）挿入用の異形の空洞部（４）を成
形するものである。この空洞部（４）の断面形状は１史
用する回転ロンドの断面形状に合致させるもので、第３
図（イ）ニ示すように十字状のもの、（０）に示すよう
に−の字状のもの、（へ）に示すように四角形状のもの
、（＝）に示すように六角形状のもの等が考えられるが
、いずれにしても使用する回転ロンドの断面形状に合致
してその回転にどもなって杭が回転するものでなければ
ならない。Figure 1 shows an overall front view of the screwed pile of the present invention ((14 construction is assumed to be 2ψ4, Fig. 1 shows no failure) according to the present invention. (1) It is a 14 pile body, (2) is a stake (1
) is a spiral tsuba provided at appropriate pitches from the tip of the outer periphery upwards. (3) It is an iron cup fitting that softens the VC green at the tip of the stake. As shown in the enlarged view of Figure 3, the shape of this stepping metal tool is a truncated circle with a female face, and a cutting edge (3)' is provided on the head of the tool to improve the cutting of the soil.
Also, the external shape of the pile is gently tapered from approximately the middle of the entire length toward the tip. 1. The helical pile of the present invention is a pile (
11 is used to form an irregularly shaped cavity (4) for inserting a rotary iron (not shown) having an irregular cross section.The cross-sectional shape of this cavity (4) is This is to match the cross-sectional shape of the rotating iron used, and the
A cross-shaped one as shown in figure (a) d, a --shaped one as shown in (0), a square-shaped one as shown in (f), a hexagonal one as shown in (=) etc., but in any case, it must match the cross-sectional shape of the rotary iron to be used, and the pile must rotate with the rotation.
本発明のねじ込み杭は上述の如き形状であるから、その
施工現場での埋設作桑に当っては回転ロンドを杭の中心
の空洞部（４）の先端に届く丑で全長に挿入してロンド
を回転すると、施工機械の上方からの圧入力と共（（杭
は回転して基礎地盤中に進入埋設される。そしてこの杭
の回駄は全長に挿入されているロンドの回転によって杭
全体が同じ力で回転するために、土の抵抗に対して異状
な力が加わることがないから［ねじれ」による杭の破損
が生じないばかりか、その進入が円滑に行えるという従
来の螺旋杭にはみられない卓越した効果を奏するもので
ある。Since the screwed pile of the present invention has the above-mentioned shape, when burying the pile at the construction site, insert a rotary iron over the entire length of the pile with a screw that reaches the tip of the hollow part (4) at the center of the pile. When the pile is rotated, the pile is rotated and buried in the foundation ground along with the pressing force from above from the construction machine. Because they rotate with the same force, no abnormal force is applied to the resistance of the soil, which not only prevents damage to the pile due to twisting, but also enables smooth entry, which is unique to conventional helical piles. It has an outstanding effect that cannot be achieved.
第１図は本発明のねじ込み杭の全体正面図を示し、第２
図（イ） 、 （ロ） 、（ハ）、（＝）はそれぞれ杭
の断面の実施例図を示す。第３図は杭先ｅ、？：１の拡
大図を示すものである。
（１）・杭本体”（２）・１１ｊ′；り旋鍔 （３）・
・踏金具 （羽・・杭中心の空洞部
第１図FIG. 1 shows an overall front view of the screwed pile of the present invention, and FIG.
Figures (a), (b), (c), and (=) respectively show examples of cross-sections of piles. Figure 3 shows the pile tip e, ? : Shows an enlarged view of 1. (1)・Pile body” (2)・11j′; Ritsutsuba (3)・
・Stepping tool (feather... hollow part in the center of the pile Fig. 1)
Claims (4)
ノチで螺旋ス；：を設けてなるコンクリート杭において
、杭全長のほぼ中間位置から先端方向にかけてテーパー
を形成してその先端に鉄製の沓を装着し、杭本体の中心
の全長に亘って回転ロンド挿入用の十字状の空洞部を成
形してなることを特徴としたねじ込み杭。(1) Concrete piles have a spiral groove on the outer periphery of the pile from the tip of the shoe to the upper part, with an appropriate slope.A taper is formed from approximately the middle of the entire length of the pile toward the tip, and an iron shoe is attached to the tip. A screw-in pile characterized in that a cross-shaped hollow part for inserting a rotary rond is formed over the entire length of the center of the pile body.
挿入用の空洞部の断１ｎｊ形状を−の字伏とした特許請
求範囲（１）に記載のねじ込み杭。(2) The screwed pile according to claim (1), wherein the cross section 1nj shape of the hollow portion for inserting the rotary iron formed over the entire length of the center of the pile body is indicated by a minus sign.
挿入月４の空洞部の１新而形状を四角形にした特許請求
範囲（１）に記載のねじ込み杭。(3) The screwed pile according to claim (1), wherein one shape of the hollow part of the rotary iron insert 4 formed over the entire length of the center of the pile body is square.
挿入用の空洞部のｌＪｔ面形状を六角形にした特許請求
範囲（１）に記載のねじ込み杭。(4) The screwed pile according to claim (1), wherein the lJt surface shape of the cavity for inserting the rotary iron formed over the entire length of the center of the pile body is hexagonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20738483A JPS60102416A (en) | 1983-11-07 | 1983-11-07 | Drilling pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20738483A JPS60102416A (en) | 1983-11-07 | 1983-11-07 | Drilling pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60102416A true JPS60102416A (en) | 1985-06-06 |
Family
ID=16538837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20738483A Pending JPS60102416A (en) | 1983-11-07 | 1983-11-07 | Drilling pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60102416A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62143742U (en) * | 1986-03-05 | 1987-09-10 | ||
| EP0253988A1 (en) * | 1986-07-23 | 1988-01-27 | Delmag-Maschinenfabrik Reinhold Dornfeld GmbH & Co. | Prefabricated concrete element and method for introducing such an element to the soil |
-
1983
- 1983-11-07 JP JP20738483A patent/JPS60102416A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62143742U (en) * | 1986-03-05 | 1987-09-10 | ||
| EP0253988A1 (en) * | 1986-07-23 | 1988-01-27 | Delmag-Maschinenfabrik Reinhold Dornfeld GmbH & Co. | Prefabricated concrete element and method for introducing such an element to the soil |
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