JP2780071B2 - Parent pile lock anchor method - Google Patents
Parent pile lock anchor methodInfo
- Publication number
- JP2780071B2 JP2780071B2 JP5314647A JP31464793A JP2780071B2 JP 2780071 B2 JP2780071 B2 JP 2780071B2 JP 5314647 A JP5314647 A JP 5314647A JP 31464793 A JP31464793 A JP 31464793A JP 2780071 B2 JP2780071 B2 JP 2780071B2
- Authority
- JP
- Japan
- Prior art keywords
- parent pile
- steel pipe
- lock anchor
- pile
- anchor
- 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 - Fee Related
Links
Landscapes
- Piles And Underground Anchors (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、親杭ロックアンカー方
式山留で使用する親杭に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a main pile used in a main pile lock anchor type stake.
【０００２】[0002]
【従来の技術】親杭ロックアンカー方式山留は、岩盤の
山留を行う上で最も一般的な方法であるが、これを図９
〜図１１について説明する。2. Description of the Related Art The stake lock anchor type stake is the most common method for staking a bedrock.
11 will be described.
【０００３】図中１は親杭であるが、この親杭１をロッ
クアンカー２で直接押さえる方式を採用する。詳しく
は、親杭１にロックアンカー２を貫通させ、その端部を
親杭１側面で定着ナット３および支圧板４で定着する。
５は腹起し、６は台座である。[0003] In the figure, reference numeral 1 denotes a parent pile, which employs a method in which the parent pile 1 is directly pressed by a lock anchor 2. Specifically, the lock anchor 2 is penetrated through the parent pile 1, and its end is fixed on the side surface of the parent pile 1 by the fixing nut 3 and the supporting plate 4.
5 is provoked and 6 is a pedestal.
【０００４】このように親杭１はロックアンカー２を貫
通させるため、図５〜図８に示すように、溝形鋼７を間
隔を存してウエブ同士を対向させ、この溝形鋼７のフラ
ンジ相互に平鋼８を掛け渡し、この平鋼８で溝形鋼７同
士をつないでボックス状にしたものである。As shown in FIGS. 5 to 8, in order for the parent pile 1 to penetrate the lock anchor 2, the channel steels 7 are opposed to each other with a space therebetween as shown in FIGS. The flat steel 8 is bridged between the flanges, and the flat steel 8 connects the channel steels 7 to each other to form a box.
【０００５】溝形鋼７と平形鋼８は溶接で接合し、ま
た、ロックアンカー２を貫通させる貫通部はその開口９
ａ，９ｂを平鋼８に欠損部として形成することで確保す
る。なお、この開口９ａ，９ｂは貫通部がアンカー打ち
込み角度に適合するように上下に位置をずらせて設け
る。[0005] The channel steel 7 and the flat steel 8 are joined by welding, and a penetrating part for penetrating the lock anchor 2 has an opening 9.
It is ensured by forming a and 9b in the flat steel 8 as a defect. The openings 9a and 9b are provided so as to be vertically displaced so that the penetrating portions match the anchor driving angle.
【０００６】[0006]
【発明が解決しようとする課題】このように従来の親杭
１は、溝形鋼７を平鋼８でついだものであり、長尺物で
あるため、現場での加工や接続が困難である。その結
果、加工費がかさみ、施工性もよくない。As described above, the conventional parent pile 1 has the channel steel 7 attached with the flat steel 8 and is a long object. is there. As a result, processing costs are high and workability is not good.
【０００７】また、市販の溝形鋼７を使用するため、そ
のウエブには限界があり、大きなせん断力に対しては構
造的には弱いものとなる。Further, since commercially available channel steel 7 is used, its web is limited, and is structurally weak against a large shearing force.
【０００８】本発明の目的は前記従来例の不都合を解消
し、溶接個所が少なく加工費が大きく軽減でき、大きな
せん断力に対しても充分対抗できる構造が容易に得られ
る親杭ロックアンカー方式山留用親杭を提供することに
ある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned disadvantages of the prior art, to reduce the number of welding points, to greatly reduce the processing cost, and to easily obtain a structure capable of sufficiently coping with a large shear force. The purpose is to provide a staying parent pile.
【０００９】[0009]
【課題を解決するための手段】本発明は前記目的を達成
するため、鋼材による親杭にロックアンカーを貫通さ
せ、その端部を親杭側面で定着する親杭ロックアンカー
方式山留において、親杭には角形鋼管を使用し、この角
形鋼管に前後方向に小径鋼管をアンカー打ち込み角度に
貫通させてロックアンカー挿通孔を形成し、前記小径鋼
管の両端開口には補強用リングプレートを全周溶接で固
定して補強することを要旨とするものである。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a parent pile lock anchor type dome which penetrates a rock anchor through a steel parent pile and fixes its end to the side of the parent pile. A square steel pipe is used for the pile, a small-diameter steel pipe is penetrated through the square steel pipe in the front-rear direction at an anchor driving angle, and a lock anchor insertion hole is formed. The gist is to fix and reinforce it.
【００１０】[0010]
【作用】本発明によれば、角形鋼管を使用するので溶接
個所はアンカー取付部に限られ、加工費は大きく軽減さ
れる。また、小径鋼管はアンカー力導入時に座屈防止の
役目を果たす。According to the present invention, since the rectangular steel pipe is used, the welding portion is limited to the anchor mounting portion, and the processing cost is greatly reduced. Further, the small-diameter steel pipe plays a role of preventing buckling when the anchor force is introduced.
【００１１】また、小径鋼管によりロックアンカー挿通
孔がアンカー打ち込み角度に適して簡単に形成でき、こ
の小径鋼管をガイドとしてアンカー打ち込みを正確に行
うことができる。Further, the lock anchor insertion hole can be easily formed by the small-diameter steel pipe suitable for the anchor driving angle, and the anchor driving can be accurately performed by using the small-diameter steel pipe as a guide.
【００１２】さらに、補強用リングプレートが小径鋼管
の両端開口に全周溶接で固定するのでかかる開口部周辺
の断面欠損を補うことができる。とくに、岩盤等の大規
模な山留のようにロックアンカー１本当たりの引張力が
大きい場合には、親杭の局部座屈に対する補強が不可欠
であり、かかる局部座屈を角形鋼管のロックアンカー取
付部に予め設けた小径鋼管とその両端部の補強リングプ
レートの複合構造で受けもつことができる。Further, since the reinforcing ring plate is fixed to the openings at both ends of the small-diameter steel pipe by full-circumferential welding, it is possible to compensate for a cross-sectional defect around the opening. In particular, when the tensile force per lock anchor is large, such as a large-scale ridge of a bedrock, it is essential to reinforce the local buckling of the parent pile. It can be supported by a composite structure of a small-diameter steel pipe provided in advance in the mounting portion and reinforcing ring plates at both ends thereof.
【００１３】[0013]
【実施例】以下、本発明の実施例を図面について詳細に
説明する。図１は本発明の親杭ロックアンカー方式山留
用親杭の１実施例を示す縦断側面図、図２は同上正面図
である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a longitudinal sectional side view showing an embodiment of a parent pile lock anchor type mountain retaining parent pile of the present invention, and FIG. 2 is a front view of the same.
【００１４】図４にも示すように本発明は、親杭１には
大型の角形鋼管１０を使用した。そして、図３に示すよ
うにこの角形鋼管１０に前後方向に小径鋼管１１を貫通
させて配置し、この小径鋼管１１でロックアンカー挿通
孔を形成した。As shown in FIG. 4, in the present invention, a large square steel pipe 10 is used for the parent pile 1. Then, as shown in FIG. 3, a small-diameter steel pipe 11 was arranged to penetrate the rectangular steel pipe 10 in the front-rear direction, and a lock anchor insertion hole was formed in the small-diameter steel pipe 11.
【００１５】この小径鋼管１１は角形鋼管１０に溶接で
固定するものであるが、その角度はアンカー打ち込み角
度とし、さらに、小径鋼管１１の両端開口には補強用リ
ングプレート１２を全周溶接で固定して補強をなすよう
にする。The small-diameter steel pipe 11 is fixed to the square steel pipe 10 by welding. The angle is an anchor driving angle, and furthermore, a reinforcing ring plate 12 is fixed to the openings at both ends of the small-diameter steel pipe 11 by welding all around. To provide reinforcement.
【００１６】本発明の親杭１も親杭ロックアンカー方式
山留をなすものとしては前記従来例と同じであり、図９
〜図１１で説明した通りロックアンカーを貫通させ、そ
の端部を定着させる。The parent pile 1 of the present invention is also the same as the above-mentioned conventional example as to form a parent pile lock anchor type stake, and FIG.
As described with reference to FIG. 11, the lock anchor is made to penetrate, and its end is fixed.
【００１７】その際、親杭１をなす角形鋼管１０の鋼管
径および肉厚を杭に発生する断面力に応じて適切なもの
に選定する。また、現場での長尺物が必要な場合には角
形鋼管１０を上下に繋いでゆけばよく、これは鋼管接続
用の溶接機械で簡単に全周溶接を行うことにより実現で
きる。At this time, the steel pipe diameter and wall thickness of the square steel pipe 10 forming the parent pile 1 are selected to be appropriate according to the sectional force generated in the pile. If a long object is required on site, the square steel pipes 10 may be connected up and down, and this can be realized by simply performing a full circumference welding with a welding machine for connecting steel pipes.
【００１８】[0018]
【発明の効果】以上述べたように本発明の親杭ロックア
ンカー方式山留用親杭は、溶接個所が少なく加工費が大
きく軽減でき、また、大きなせん断力に対しても充分対
処できる構造が容易に得られるものである。As described above, the parent pile lock anchor type mountain retaining parent pile of the present invention has a small number of welding points, can greatly reduce the processing cost, and has a structure that can sufficiently cope with a large shear force. It is obtained in.
【図１】本発明の親杭ロックアンカー方式山留用親杭の
１実施例を示す縦断側面図である。FIG. 1 is a longitudinal sectional side view showing one embodiment of a parent pile lock anchor type pile for mountain retaining of the present invention.
【図２】本発明の親杭ロックアンカー方式山留用親杭の
１実施例を示す正面図である。FIG. 2 is a front view showing one embodiment of a parent pile lock anchor type mountain retaining parent pile of the present invention.
【図３】本発明の親杭ロックアンカー方式山留用親杭の
アンカー部分の断面図である。FIG. 3 is a cross-sectional view of an anchor portion of the parent pile lock anchor type mountain retaining parent pile of the present invention.
【図４】本発明の親杭ロックアンカー方式山留用親杭の
一般部分の断面図である。FIG. 4 is a cross-sectional view of a general part of a parent pile lock anchor type mountain retaining parent pile of the present invention.
【図５】従来の親杭ロックアンカー方式山留用親杭の１
実施例を示す縦断側面図である。FIG. 5 shows a conventional parent pile lock anchor type parent pile for mountain stay.
It is a vertical side view which shows an Example.
【図６】従来の親杭ロックアンカー方式山留用親杭の１
実施例を示す正面図である。FIG. 6 shows a conventional parent pile lock anchor type mountain retaining parent pile.
It is a front view showing an example.
【図７】従来の親杭ロックアンカー方式山留用親杭のア
ンカー部分の断面図である。FIG. 7 is a sectional view of an anchor portion of a conventional parent pile lock anchor type mountain retaining parent pile.
【図８】従来の親杭ロックアンカー方式山留用親杭の一
般部分の断面図である。FIG. 8 is a sectional view of a general portion of a conventional parent pile lock anchor type mountain retaining parent pile.
【図９】親杭ロックアンカー方式山留のロックアンカー
取付けの詳細を示す縦断側面図である。FIG. 9 is a vertical cross-sectional side view showing details of mounting the lock anchor of the parent pile lock anchor type stake.
【図１０】親杭ロックアンカー方式山留の正面図であ
る。FIG. 10 is a front view of a parent pile lock anchor type stake.
【図１１】親杭ロックアンカー方式山留の断面図であ
る。FIG. 11 is a cross-sectional view of a parent pile lock anchor type stake.
１…親杭 ２…ロックア
ンカー ３…定着ナット ４…支圧板 ５…腹起し ６…台座 ７…溝形鋼 ８…平鋼 ９ａ，９ｂ…開口 １０…角形鋼
管 １１…小径鋼管 １２…補強リ
ングプレートDESCRIPTION OF SYMBOLS 1 ... Parent pile 2 ... Lock anchor 3 ... Fixing nut 4 ... Bearing plate 5 ... Protrusion 6 ... Pedestal 7 ... Channel steel 8 ... Flat steel 9a, 9b ... Opening 10 ... Square steel pipe 11 ... Small diameter steel pipe 12 ... Reinforcement ring plate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山田 徹 東京都港区元赤坂一丁目２番７号 鹿島 建設株式会社内 (72)発明者 玉田 康一 東京都港区元赤坂一丁目２番７号 鹿島 建設株式会社内 (56)参考文献 特開 平５−321257（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) E02D 17/04 E02D 5/80──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toru Yamada 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Koichi Tamada 1-2-7 Moto-Akasaka, Minato-ku, Tokyo No. Kashima Construction Co., Ltd. (56) References JP-A-5-321257 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) E02D 17/04 E02D 5/80
Claims (1)
させ、その端部を親杭側面で定着する親杭ロックアンカ
ー方式山留において、親杭には角形鋼管を使用し、この
角形鋼管に前後方向に小径鋼管をアンカー打ち込み角度
に貫通させてロックアンカー挿通孔を形成し、前記小径
鋼管の両端開口には補強用リングプレートを全周溶接で
固定して補強することを特徴とする親杭ロックアンカー
方式山留用親杭。Claims 1. In a parent pile lock anchor type stake in which a rock anchor penetrates a steel parent pile and an end thereof is fixed on a side surface of the parent pile, a square steel pipe is used for the parent pile, and A small-diameter steel pipe is penetrated at an anchor driving angle in the direction to form a lock anchor insertion hole, and a reinforcing ring plate is fixed to the opening at both ends of the small-diameter steel pipe by full circumference welding to reinforce the parent pile lock. Anchor type pile for anchorage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5314647A JP2780071B2 (en) | 1993-12-15 | 1993-12-15 | Parent pile lock anchor method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5314647A JP2780071B2 (en) | 1993-12-15 | 1993-12-15 | Parent pile lock anchor method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07166546A JPH07166546A (en) | 1995-06-27 |
| JP2780071B2 true JP2780071B2 (en) | 1998-07-23 |
Family
ID=18055850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5314647A Expired - Fee Related JP2780071B2 (en) | 1993-12-15 | 1993-12-15 | Parent pile lock anchor method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2780071B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620310A (en) * | 2017-08-01 | 2018-01-23 | 温州华隆建设有限公司 | Anchor pipe skeleton and its method for protecting support |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2992914B2 (en) * | 1992-05-19 | 1999-12-20 | 東急建設株式会社 | Support method and support structure for steel underground continuous wall |
-
1993
- 1993-12-15 JP JP5314647A patent/JP2780071B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620310A (en) * | 2017-08-01 | 2018-01-23 | 温州华隆建设有限公司 | Anchor pipe skeleton and its method for protecting support |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07166546A (en) | 1995-06-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |