JPS6311715A - Construction of earth anchor-concrete pile - Google Patents
Construction of earth anchor-concrete pileInfo
- Publication number
- JPS6311715A JPS6311715A JP15379586A JP15379586A JPS6311715A JP S6311715 A JPS6311715 A JP S6311715A JP 15379586 A JP15379586 A JP 15379586A JP 15379586 A JP15379586 A JP 15379586A JP S6311715 A JPS6311715 A JP S6311715A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- earth anchor
- pile
- steel material
- tremie pipe
- 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
- 238000010276 construction Methods 0.000 title claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 125000006850 spacer group Chemical group 0.000 description 8
- 210000000078 claw Anatomy 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 241000272814 Anser sp. Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 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）
この発明は構造物の水圧による浮上シ防止を兼ねるコン
クリート杭を形成する、アースアンカー兼用コンクリー
ト杭の施工方法に関するものである０
（発明が解決しようとする問題点）
近年構造物の基礎等底盤の薄肉化に伴い、主て底盤に作
用する水圧に抵抗する必要から構造物下の地中杭に構造
物の浮上りに対する抵抗力を持たせることが要請されて
いる。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a method of constructing a concrete pile that also serves as an earth anchor, and which also serves to prevent floating of structures due to water pressure. In recent years, as the foundations of structures have become thinner, it is necessary to resist the water pressure that mainly acts on the bottom, so underground piles under the structure have to have resistance to the floating of the structure. This is requested.
この発明はこうした要請に対する一手段として現場打ち
コンクリート杭・て上向きの力に抵抗する機能を与える
目的からなされたもので、杭先端部にアースアンカーを
定着させることによりこれを解決しようとするものであ
る。This invention was made with the aim of providing cast-in-place concrete piles with the ability to resist upward force as a means to meet these demands, and attempts to solve this problem by fixing an earth anchor to the tip of the pile. be.
（問題点を解決するだめの手段）
本発明ではコンクリート杭の先端部にＰＣ鋼材に接続さ
れたアースアンカーを定着させてＰＣ鋼材にプレストレ
スを導入することにより杭に上向きの力に対する抵抗力
を持たせる。(Another means to solve the problem) In the present invention, an earth anchor connected to a prestressing steel material is fixed at the tip of a concrete pile to introduce prestress into the prestressing steel material, thereby increasing resistance to upward force on the pile. Have it.
アースアンカーは掘削孔に鉄筋篭、トレミー管とともに
孔底まで挿入される。そして掘削孔内にトレミー管を通
じてコンクリートを打設してアースアンカーを杭先端部
に定着させた後、ＰＣ鋼材を緊張して杭に下向きの力を
支える。The earth anchor is inserted into the borehole along with the rebar cage and tremie pipe to the bottom of the borehole. Concrete is poured into the excavated hole through a tremie pipe to secure the earth anchor to the tip of the pile, and then the prestressing steel is tensed to support the downward force on the pile.
（実施例） 以下本発明を一実施例を示す図面に基づいて説明する。(Example) The present invention will be explained below based on the drawings showing one embodiment.
この発明はＰＣ鋼材１の下端に接続されたアースアンカ
ー２を先端部に定着させて現場打ちコンクリート杭Ａ（
以下杭Ａ）を施工する方法である。This invention fixes the earth anchor 2 connected to the lower end of the PC steel material 1 to the tip part, and cast-in-place concrete pile A (
The following is the method for constructing pile A).
初めに第１図知より施工手順を説明する。First, the construction procedure will be explained from Figure 1.
まず所定の位置にケーシング３を建込み、支持層Ｂまで
掘削して掘削孔Ｃを形成する（Ｉ）。続いてこの掘削孔
Ｃに鉄筋篭４を挿入しく■）、更にトレミー管５及びＰ
Ｃ鋼材１を挿入する（ＩＩＩ）。First, the casing 3 is built in a predetermined position and excavated to the support layer B to form the excavated hole C (I). Next, insert the reinforcing bar cage 4 into this excavated hole C), and then insert the tremie pipe 5 and P.
Insert C steel material 1 (III).
ＰＣ鋼材１の下端にはアースアンカー２が接続されてお
り、アースアンカー２は孔底まで吊り下げられる。An earth anchor 2 is connected to the lower end of the PC steel material 1, and the earth anchor 2 is suspended to the bottom of the hole.
次にアースアンカー２を孔底に位置させた状態でトレミ
ー管５上部のホッパー６よりコンクリート７を流し込み
（ＩＶ） 、 ）レミー管５を引き上げながら掘削孔
Ｃ内にコンクリート７を打設し、杭Ａを形成する（Ｖ）
０
コンクリート７の打設完了後、アースアンカー２を杭Ａ
先端部に定着させてＰＣ鋼材１を緊張する０
第２図は掘削孔Ｃ内に鉄筋篭４．トレミー管５及びＰＣ
鋼材１を挿入した状態を示したもので、第３図、第４図
、第５図はその上端部、中央部、下端部の詳細を示して
いる。Next, with the earth anchor 2 positioned at the bottom of the hole, concrete 7 is poured from the hopper 6 above the tremie pipe 5 (IV), and concrete 7 is poured into the excavated hole C while pulling up the tremie pipe 5, and the pile form A (V)
0 After completing the pouring of concrete 7, attach earth anchor 2 to pile A.
The PC steel material 1 is fixed at the tip and tensioned.0 Figure 2 shows a reinforcing bar cage 4. Tremy tube 5 and PC
This shows the state in which the steel material 1 is inserted, and FIGS. 3, 4, and 5 show details of its upper end, center, and lower end.
第３図に示すようにグーソング３上には主としてトレミ
ー管５及びＰＣ鋼材１の位置決めのだめの架台８が設置
される。この架台８はＰＣ鋼材１が打設コンク！Ｊ −
） ７ ！７７″よって押し下げられるのを防止する役
目も兼ねる。ＰＣ鋼材１は第４図のようにトレミー管５
の周囲に配置されるが、架台８上のトレミー管５周囲に
はＰＣ鋼材１を吊るだめの喫９が取り付けられる。As shown in FIG. 3, a frame 8 for mainly positioning the tremie tube 5 and the PC steel material 1 is installed on the goose song 3. This frame 8 is made of concrete made of PC steel material 1! J-
) 7! 77'', it also serves to prevent it from being pushed down.The PC steel material 1 is attached to the tremie tube 5 as shown in Figure 4.
However, around the tremie tube 5 on the pedestal 8, a drawer 9 for suspending the PC steel material 1 is attached.
トレミー管５の周囲には第４図に示すようにＰＣ鋼材１
の位置決めのだめの位置決め用スペーサ１０が取り付け
られており、Ｈのよう知そのＰＣＣ鋼材１置置設けた凹
みに外側からＰＣ鋼材１を差し込むようにしである。■
は３本のＰＣ鋼材１を入れる場合の実施例であるが、Ｉ
ＩＩ、ＩＶはそれぞれ２本の場合、４本の場合の実施例
である。A PC steel material 1 is placed around the tremie tube 5 as shown in FIG.
A positioning spacer 10 for the positioning pot is attached so that the PC steel material 1 can be inserted from the outside into the recess provided in which the PCC steel material 1 is placed. ■
is an example in which three pieces of PC steel material 1 are inserted, but I
II and IV are examples in which there are two and four wires, respectively.
トレミー管５及びＰＣ鋼材１の下端部には第５図に示す
ようにＰＣ鋼材１を固定する固定用金物１１が取シ付け
られる。この固定用金物１１の内側にはツメｌｌａが突
設されており、このツメ１１ａにより固定用金物１１は
トレミー管５に仮固定されている。そして固定用金物１
１はコンクリート７の打設開始後、トレミー管５を引き
上げる際これを回転させてツメｌｌａを解くことにより
トレミー管５から切り離される。A fixing hardware 11 for fixing the PC steel material 1 is attached to the lower ends of the tremie tube 5 and the PC steel material 1, as shown in FIG. A claw lla is provided on the inside of the fixing hardware 11, and the fixing hardware 11 is temporarily fixed to the tremie tube 5 by this claw 11a. And fixing hardware 1
1 is separated from the tremie pipe 5 by rotating the tremie pipe 5 and loosening the claws lla when pulling up the tremie pipe 5 after starting pouring of the concrete 7.
ＰＣ鋼材１は■のように固定用金物１１にパイプ状の固
定端金物１１ｂ及びＵ型ポル）ｌｌｃによって固定され
ておシ、またＰＣ鋼材１下端には固定用金物１１と支持
層Ｂとの距離を確保するためのスペーサ１２が取り付け
られている。この実施例では固定用金物１１とスペーサ
１２とから杭Ａ先端部に定着されるアースアンカー２を
形成している。The PC steel material 1 is fixed to the fixing hardware 11 by a pipe-shaped fixed end hardware 11b and a U-shaped pole (llc), as shown in (). A spacer 12 is attached to ensure distance. In this embodiment, a fixing hardware 11 and a spacer 12 form an earth anchor 2 that is fixed to the tip of a pile A.
スペーサ１２にはストッパー１２ａが設けられ、ストッ
パー１２ａの下方のスペーサ１２が支持層Ｂ内に埋め込
まれる。スペーサ１２を支持層Ｂ内に埋め込むことによ
ってトレミー管５の固定用金物１１からの解除を容易に
している。The spacer 12 is provided with a stopper 12a, and the spacer 12 below the stopper 12a is embedded in the support layer B. By embedding the spacer 12 in the support layer B, the tremie tube 5 can be easily released from the fixing hardware 11.
（発明の効果）
この発明は以上の通υであり、アースアンカーを杭先端
部に定着させてＰＣ鋼材にプレストレスを導入すること
によって杭に下向きの力が与えられるため構造物の水圧
等による浮上りを有効に防止することが可能となる。(Effects of the Invention) This invention has the above-mentioned principle, and by fixing the earth anchor to the tip of the pile and introducing prestress to the PC steel material, downward force is applied to the pile, which is caused by the water pressure of the structure etc. It becomes possible to effectively prevent floating.
第１図は本発明の施工手順を示した概要図、第２図はコ
ンクリート打設前の様子を示した断面図第３図−Ｉ、［
は架台部分を示したそれぞれ正面図、平面図、第４図−
■はトレミー管中央部を示した正面図、ｍ、ｍ、■はそ
の平面図、第５図−Ｉ、［はトレミー管下端部を示した
それぞれ正面図、平面図である。
Ａ：現場打ちコンクリート杭
Ｂ：支持層、Ｃ：、掘削孔
１：ＰＣ鋼材、２：アースアンカー
３：ケーシング、４：鉄筋篭
５：トレミー管、６：ホッパー
７：コンクリート、８：架台、９：楔
１０：位置決め用スペーサ、１１：固定用金物１１ａ：
ツメ、１１ｂ：固定端金物
１ｔｃ：Ｕ型ボルト、１２ニスペーサ
１２ａ：ストッパー。
第３図
第１
１ ＩＩ ＩＩ［ＩＶ
ＶFig. 1 is a schematic diagram showing the construction procedure of the present invention, Fig. 2 is a sectional view showing the state before concrete pouring Fig. 3-I, [
are a front view, a plan view, and Fig. 4 showing the pedestal part, respectively.
(2) is a front view showing the central part of the tremie tube; m, m, and (2) are a plan view thereof; FIGS. A: Cast-in-place concrete pile B: Support layer, C:, Drill hole 1: PC steel material, 2: Earth anchor 3: Casing, 4: Rebar cage 5: Tremy pipe, 6: Hopper 7: Concrete, 8: Frame, 9 : Wedge 10: Positioning spacer, 11: Fixing hardware 11a:
Claw, 11b: Fixed end hardware 1tc: U-shaped bolt, 12 spacer 12a: Stopper. Figure 3 1 1 II II [IV
V
Claims (1)
篭、トレミー管及び下端にアースアンカーが接続された
ＰＣ鋼材を孔底まで挿入し、トレミー管を引き上げなが
らこれを通じて掘削孔内にコンクリートを打設した後、
アースアンカーをコンクリート杭先端部に定着させてＰ
Ｃ鋼材を緊張するアースアンカー兼用コンクリート杭の
施工方法。(1) Insert a reinforcing bar basket, a tremie pipe, and a PC steel material with an earth anchor connected to the bottom end into the hole formed by excavating to a specified support layer, and insert the tremie pipe through it into the hole while pulling up the tremie pipe. After pouring concrete,
Fix the earth anchor to the tip of the concrete pile and
Construction method for concrete piles that also serve as earth anchors to tension C steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15379586A JPS6311715A (en) | 1986-06-30 | 1986-06-30 | Construction of earth anchor-concrete pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15379586A JPS6311715A (en) | 1986-06-30 | 1986-06-30 | Construction of earth anchor-concrete pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6311715A true JPS6311715A (en) | 1988-01-19 |
| JPH0420443B2 JPH0420443B2 (en) | 1992-04-02 |
Family
ID=15570296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15379586A Granted JPS6311715A (en) | 1986-06-30 | 1986-06-30 | Construction of earth anchor-concrete pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6311715A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0369033U (en) * | 1989-11-13 | 1991-07-09 | ||
| JPH07324330A (en) * | 1994-05-31 | 1995-12-12 | Toda Constr Co Ltd | Pile driving construction method |
| CN102242546A (en) * | 2010-05-12 | 2011-11-16 | 梁闽 | Method and device for regulating and controlling deformation of foundation by utilizing pullout resistance of reinforcing elements |
| CN104947671A (en) * | 2014-03-25 | 2015-09-30 | 上海外高桥造船有限公司 | Wharf pile pulling analytical method for self-elevating drilling platform |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60173215A (en) * | 1984-02-20 | 1985-09-06 | Nittoku Kensetsu Kk | Construction work of cast-in-place pile |
| JPS6110622A (en) * | 1984-06-26 | 1986-01-18 | Hasegawa Komuten Co Ltd | Method of constructing cast-in-place concrete pile |
-
1986
- 1986-06-30 JP JP15379586A patent/JPS6311715A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60173215A (en) * | 1984-02-20 | 1985-09-06 | Nittoku Kensetsu Kk | Construction work of cast-in-place pile |
| JPS6110622A (en) * | 1984-06-26 | 1986-01-18 | Hasegawa Komuten Co Ltd | Method of constructing cast-in-place concrete pile |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0369033U (en) * | 1989-11-13 | 1991-07-09 | ||
| JPH07324330A (en) * | 1994-05-31 | 1995-12-12 | Toda Constr Co Ltd | Pile driving construction method |
| CN102242546A (en) * | 2010-05-12 | 2011-11-16 | 梁闽 | Method and device for regulating and controlling deformation of foundation by utilizing pullout resistance of reinforcing elements |
| CN104947671A (en) * | 2014-03-25 | 2015-09-30 | 上海外高桥造船有限公司 | Wharf pile pulling analytical method for self-elevating drilling platform |
| CN104947671B (en) * | 2014-03-25 | 2017-01-11 | 上海外高桥造船有限公司 | Wharf pile pulling analytical method for self-elevating drilling platform |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0420443B2 (en) | 1992-04-02 |
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