JPS5991215A - Earth anchor - Google Patents
Earth anchorInfo
- Publication number
- JPS5991215A JPS5991215A JP20319982A JP20319982A JPS5991215A JP S5991215 A JPS5991215 A JP S5991215A JP 20319982 A JP20319982 A JP 20319982A JP 20319982 A JP20319982 A JP 20319982A JP S5991215 A JPS5991215 A JP S5991215A
- Authority
- JP
- Japan
- Prior art keywords
- wing
- anchor body
- anchor
- tip
- pile
- 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
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、宅地等の造成地において擁壁の補強工法に使
用されるアースアンカーに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an earth anchor used in a method for reinforcing retaining walls in developed areas such as housing lots.
近年、宅地の造成化が進むに伴って、擁壁の事故が増加
する傾向にある。このような事故の主なものは、転倒、
はらみ、移動等があげられ、かかる事故の場合は、擁壁
を貫通して多数のアースアンカーを打ち込み、これら各
アースアンカー同士を互いに連結することが一般に行わ
れている。このようなアースアンカーによる工法は、削
孔へ引張材を挿入した後、グラウト材を注入して先端部
にアンカ一体を形成させるものであるが、従来一般の工
法では、一本当たりの引き抜き抵抗力を充分なものとす
るため地中深く挿入しなければならず、そのため、削孔
機等の装置に大型なものを必要とし、かつ、架設設備の
組立が必要となって全体に天井）すなものとなり、コス
ト高となる欠点があった。本発明はこのような現状に鑑
がみてなされたもので、低コストで実施することのでき
る擁壁補強工法用のアースアンカーを提供せんとするも
のである。In recent years, as residential land development progresses, accidents involving retaining walls tend to increase. The main causes of such accidents are falls,
In the event of such an accident, it is common practice to drive a large number of earth anchors through the retaining wall and connect these earth anchors to each other. In this construction method using earth anchors, a tensile material is inserted into a drilled hole, and then grout is injected to form an integral anchor at the tip. In order to obtain sufficient force, it must be inserted deep into the ground, which requires large-sized equipment such as a hole-drilling machine, and requires assembly of erection equipment, resulting in a total ceiling This has the drawback of increasing costs. The present invention has been made in view of the current situation, and aims to provide an earth anchor for a retaining wall reinforcement method that can be implemented at low cost.
以下、本発明の構成を図示の実施例に基づいて説明する
と、第１図において、（１）は、地中へ挿入される鋼管
製のアンカ一本体であって、このアンカ一本体（１）の
先端部分には、長手方向に沿って一対のガイド孔（２）
が形成されている。更に、このガイド孔（２）より長手
方向の中央寄りの位置には、断面半面形の一対の翼＋３
１ （３）が、アンカ一本体（１）の外周に合致して配
置されている。（４１（４１は、これら各翼（３） （
３１の前記ガイド孔（２）側の端部を貫通して差し込ん
だ係止具としてのボルトであって、このポル） （４）
（４１の先端が、更に、アンカ一本体＋１１を貫通し
てスライド自在に挿入され、このアンカ一本体（１）内
において、ストッパーとしてのナンド（５１＋５１が取
り付けられている。他方、（６）は、その先端外周部の
所要長さにわたって螺旋羽根（７）を形成した抗体であ
って、この杭体（６）の他端側が前記アンカ一本体（１
）の先端へ挿入されるとともに、同じくその端部に突設
した摺動ピン（８）が前記ガイド孔（２）へ摺動自在に
係合している。Hereinafter, the structure of the present invention will be explained based on the illustrated embodiment. In FIG. A pair of guide holes (2) are provided along the longitudinal direction at the tip of the
is formed. Furthermore, a pair of wings with a half-sided cross section is located at a position closer to the center in the longitudinal direction than the guide hole (2).
1 (3) are arranged to match the outer periphery of the anchor body (1). (41 (41 is each of these wings (3) (
(4) A bolt serving as a locking tool inserted through the end of the guide hole (2) of 31 on the side of the guide hole (2).
(The tip of 41 is further slidably inserted through the anchor body +11, and within this anchor body (1), a nand (51+51) as a stopper is attached.On the other hand, (6) , an antibody in which a spiral blade (7) is formed over the required length of the outer circumferential portion of the tip, and the other end side of this stake body (6) is connected to the anchor body (1).
) is inserted into the tip of the guide hole (2), and a sliding pin (8) also protruding from the end thereof is slidably engaged with the guide hole (2).
さて、上記の構成からなる本発明アースアンカーを用い
た施工方法を説明すると、まず、第３図で示すように、
擁壁（１１）を貫通して、斜め方向の下穴（１２）を削
孔する。このような削孔方法としては、例えば、鋼管杭
を打ち込む等の方法が考えられる。このようにして、下
穴（１２）を開けた後、この下穴（１２）へ本発明アー
スアンカー（９）を挿入するとともに、第４図で示すよ
うに、アンカ一本体（１）を回転させつつ、先端の抗体
（６）を地中へねじ込む。この時、該抗体（６）の摺動
ピン（８）は、第１図の如く、ガイド孔（２）の翼（３
）側の端部に位置している。そして、このように杭体（
６）を地中へねじ込んだ後、外部よりアンカ一本体（７
）を引抜き方向へ移動させると、翼（３）の先端が地中
へ食い込むとともに、摺動ピン（８）が前記ガイド孔（
２）を摺動しつつ、アンカ一本体（１）が外方へ移動し
て、翼（３）は、前記ポルｌ−（４１（４）を引出しつ
つ、そのガイド孔（２）側の端部を支点として外方へ開
き、ボルト（４）のナツト＋５１が、アンカ一本体＋１
１内周面へ引っ掛かった状態で止まる。そして、このよ
うに、翼（３）を開かせた状態で、第３図の如く、外部
よりセメントミルク等のグラウト材（１３）を注入して
、少なくともこの翼（３）部分を被覆し、アンカ一体（
１４）を形成する。Now, to explain the construction method using the earth anchor of the present invention having the above configuration, first, as shown in Fig. 3,
A diagonal pilot hole (12) is drilled through the retaining wall (11). As such a method of drilling, for example, a method such as driving a steel pipe pile can be considered. After drilling the pilot hole (12) in this way, insert the earth anchor (9) of the present invention into the pilot hole (12) and rotate the anchor body (1) as shown in FIG. While doing so, screw the antibody at the tip (6) into the ground. At this time, the sliding pin (8) of the antibody (6) is inserted into the wing (3) of the guide hole (2) as shown in FIG.
) side end. And like this, the pile body (
6) into the ground, then remove the anchor body (7) from the outside.
) is moved in the pulling direction, the tips of the blades (3) dig into the ground and the sliding pins (8) move into the guide holes (
2), the anchor main body (1) moves outward, and the wing (3) pulls out the pole l-(41 (4)) while sliding its end on the guide hole (2) side. The nut +51 of the bolt (4) is opened outward using the anchor body +1 as a fulcrum.
1 It stops when it is caught on the inner circumferential surface. Then, with the wing (3) opened in this way, as shown in FIG. 3, a grouting material (13) such as cement milk is injected from the outside to cover at least this wing (3) portion, One anchor (
14).
なお、上記において、翼＋３１の閉翼を良好とするため
、該翼！３１ （３）の内側に突起等を設けて予め僅か
に開かせておいたり、或いは、アンカ一本体ｆｌｌ内に
シャフト等を通して、このｇｉ （３１（３１を強制的
に開かせる方法等も考えられる。In addition, in the above, in order to make the closed wing of wing +31 good, the wing! 31 (3) may be provided with a protrusion or the like on the inside of the gi (31) to open it slightly in advance, or a shaft, etc. may be inserted into the anchor body full to forcibly open the gi (31 (31). .
本発明は、上記のような構成であり、このように本発明
によれば、アンカ一本体の先端に設けた翼を開かせた状
態で、この翼をセメントミルク等で被覆してアンカ一体
を形成するから、小型の割に引抜き抵抗力が大きく、そ
れ故、地中深くまで挿入する必要がないため、小型の装
置で、かつ、架設設備を設ける必要がなく、低コストで
実施できるとともに、アンカ一本体の先端に螺旋バネを
設けた抗体を突出させて、この抗体を地中へねじ込むよ
うにしているから、該抗体によっても、引抜き抵抗が得
られ、引抜き抵抗力の大なるアースアンカーが得られる
。The present invention has the above-mentioned configuration, and according to the present invention, the wing provided at the tip of the anchor body is opened, and the wing is coated with cement milk or the like to assemble the anchor body. Because it is formed, it has a large pull-out resistance despite its small size.Therefore, it does not need to be inserted deep into the ground, so it can be implemented at low cost with a small device and without the need for installation equipment. An antibody with a spiral spring is protruded from the tip of the anchor body, and this antibody is screwed into the ground, so this antibody also provides resistance to pulling out, making it possible to create an earth anchor with a high pulling resistance. can get.
第１図は、本発明アースアンカーの先端部の斜視図、第
２図は、同じく翼を開かせた状態でセメントミルクで被
覆した状態を示す斜視図、第３図から第５図は、本発明
アースアンカーによる施工方法を示す概略縦断面図であ
る。
（ｌｌ−−−アンカ一本体、＋３１−翼、（６１−抗体
、（７）螺旋羽根。
特許 出願人 積木ハウス 株式会社
代理人弁理士 樽 本 久 幸Fig. 1 is a perspective view of the tip of the earth anchor of the present invention, Fig. 2 is a perspective view showing the same state in which the wings are opened and covered with cement milk, and Figs. FIG. 2 is a schematic vertical cross-sectional view showing a construction method using the invention earth anchor. (11-anchor main body, +31-wing, (61-antibody, (7) spiral blade. Patent applicant: Block House Co., Ltd. Representative Patent Attorney Hisashi Tarumoto
Claims (1)
へ開＜翼（３１を枢着するとともに、このアンカ一本体
（１）の先端より突出して、該アンカ一本体（１）に対
して、ある一定範囲に亘ってアンカ一本体＋１１挿入方
向に出入自在な抗体（６）を取り付けるとともに、この
抗体（６）の突出部外周に領旋羽根（７）を設けたこと
をを特徴とするアースアンカー。An outwardly opening wing (31) is pivotally attached to the tip of the anchor body (11) to be inserted into the ground, and a wing (31) that protrudes from the tip of the anchor body (1) is attached to the anchor body (1). On the other hand, an antibody (6) that can freely move in and out in the insertion direction of the anchor body +11 is attached over a certain range, and a spiral blade (7) is provided on the outer periphery of the protrusion of this antibody (6). Earth anchor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20319982A JPS5991215A (en) | 1982-11-18 | 1982-11-18 | Earth anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20319982A JPS5991215A (en) | 1982-11-18 | 1982-11-18 | Earth anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5991215A true JPS5991215A (en) | 1984-05-25 |
Family
ID=16470102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20319982A Pending JPS5991215A (en) | 1982-11-18 | 1982-11-18 | Earth anchor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5991215A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003095418A (en) * | 2001-09-27 | 2003-04-03 | Seibu Electric & Mach Co Ltd | Conveyor |
| GB2412686A (en) * | 2004-03-30 | 2005-10-05 | Screwfast Foundations Ltd | A screw pile with fins |
| CN104234053A (en) * | 2014-09-29 | 2014-12-24 | 扬州市振东电力器材有限公司 | Anti-stayed and anti-twisted anchor group |
| CN107119681A (en) * | 2017-06-13 | 2017-09-01 | 林再颐 | A kind of modular Pulling-Resistant Anchor Rod |
| CN107326915A (en) * | 2017-07-19 | 2017-11-07 | 云林建设集团有限公司 | One kind building municipal works slope reinforcement device |
| CN108756979A (en) * | 2018-06-29 | 2018-11-06 | 武汉科技大学 | A kind of overall length reverse wedge formula prestressed anchor and its application method |
-
1982
- 1982-11-18 JP JP20319982A patent/JPS5991215A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003095418A (en) * | 2001-09-27 | 2003-04-03 | Seibu Electric & Mach Co Ltd | Conveyor |
| GB2412686A (en) * | 2004-03-30 | 2005-10-05 | Screwfast Foundations Ltd | A screw pile with fins |
| GB2412686B (en) * | 2004-03-30 | 2007-02-14 | Screwfast Foundations Ltd | A screw pile and method of installation |
| CN104234053A (en) * | 2014-09-29 | 2014-12-24 | 扬州市振东电力器材有限公司 | Anti-stayed and anti-twisted anchor group |
| CN107119681A (en) * | 2017-06-13 | 2017-09-01 | 林再颐 | A kind of modular Pulling-Resistant Anchor Rod |
| CN107119681B (en) * | 2017-06-13 | 2019-11-29 | 江西丰强科技发展有限公司 | A kind of modular Pulling-Resistant Anchor Rod |
| CN107326915A (en) * | 2017-07-19 | 2017-11-07 | 云林建设集团有限公司 | One kind building municipal works slope reinforcement device |
| CN108756979A (en) * | 2018-06-29 | 2018-11-06 | 武汉科技大学 | A kind of overall length reverse wedge formula prestressed anchor and its application method |
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