JP2000204544A - Injecting method using joint - Google Patents
Injecting method using jointInfo
- Publication number
- JP2000204544A JP2000204544A JP11003193A JP319399A JP2000204544A JP 2000204544 A JP2000204544 A JP 2000204544A JP 11003193 A JP11003193 A JP 11003193A JP 319399 A JP319399 A JP 319399A JP 2000204544 A JP2000204544 A JP 2000204544A
- Authority
- JP
- Japan
- Prior art keywords
- injection
- joint
- steel pipe
- backfill material
- injected
- 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
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は線路下を横断して構
造物を構築する場合のパイプルーフ等の裏込め注入工法
に関わり、特に継手を利用した注入工法に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backfill injection method for a pipe roof or the like when a structure is constructed under a track, and more particularly to an injection method using a joint.
【０００２】[0002]
【従来の技術および発明が解決しようとする課題】線路
下を横断して構造物を構築する場合、防護工として鋼管
を仮設することが行われている。鋼管の推進は鋼管に溶
接した継手をガイドとして推進するが、このとき鋼管の
周りに空洞が発生し、軌道の下の土あるいはバラストが
この空洞に落下し、路盤の陥没事故等が発生する場合が
ある。この対策として、従来鋼管を施工した後、鋼管に
孔を開け、この孔を通して鋼管の内側からセメント、モ
ルタル等の裏込め材を注入し、空洞を埋めることが行わ
れている。2. Description of the Related Art When constructing a structure crossing under a track, a steel pipe is temporarily installed as a protective work. When the steel pipe is propelled using the joint welded to the steel pipe as a guide, a cavity is created around the steel pipe, and the soil or ballast under the track falls into this cavity, causing a roadbed collapse accident etc. There is. As a countermeasure, conventionally, after a steel pipe is constructed, a hole is made in the steel pipe, and a backfill material such as cement or mortar is injected from the inside of the steel pipe through the hole to fill the cavity.
【０００３】図５は従来の鋼管の施工法を説明する図、
図６は図５の継手部分の拡大図である。図５に示すよう
に、鋼管１０、２０はそれぞれ１８０°で向き合う位置
にその長手方向に延びるＬ型の部材で形成した継手１
１，１２，２１，２２が溶接されている。図５において
各鋼管の左側に示されている継手１１，２１は上下のＬ
型部材が互いに先端部が向き合う形状であり、一方、右
側の継手１２，２２は左側の継手に対して逆Ｌ字型に
し、上下のＬ型部材の先端部が互いに反対方向を向くよ
うな形状にしている。こうして、例えば鋼管１０を設置
した後、鋼管２０を推進する場合には、継手１２の外側
から継手２１を係合させ、継手をガイドとして鋼管２０
を推進する。この時、図６に示すように各継手間は遊び
の少ない形で係合する。なお、各継手はその根元部を鋼
管に溶接で取付けているため、２つのＬ型部材からなる
１つの継手は内側と外側、計４個所を溶接している。FIG. 5 is a view for explaining a conventional steel pipe construction method.
FIG. 6 is an enlarged view of the joint portion of FIG. As shown in FIG. 5, steel pipes 10 and 20 are joints 1 formed of L-shaped members extending in the longitudinal direction at positions facing each other at 180 °.
1,12,21,22 are welded. In FIG. 5, joints 11, 21 shown on the left side of each steel pipe are upper and lower L
The right and left joints 12, 22 have an inverted L-shape with respect to the left joint, with the tips of the upper and lower L-shaped members pointing in opposite directions. I have to. Thus, for example, when the steel pipe 20 is propelled after the steel pipe 10 is installed, the joint 21 is engaged from the outside of the joint 12 and the steel pipe 20 is used as a guide.
To promote. At this time, as shown in FIG. 6, the joints are engaged with little play. In addition, since the base part of each joint is attached to the steel pipe by welding, one joint composed of two L-shaped members is welded at a total of four places, inside and outside.
【０００４】しかしながら、このような従来の裏込め注
入工法では、施工後に行う鋼管への孔開けに時間がかか
ってしまい、また開けた孔の位置まで注入用のホースを
挿入するため、ホースの取付けに時間がかかり、結局、
鋼管施工から裏込め材の注入までに相当な時間を要して
しまう。そのため裏込み材の注入は、ルーフを１本施工
するごとに行うのでは非能率であるので、ルーフ数本施
工した後、まとめて注入するようにしている。このよう
に、ルーフ施工後裏込め材注入までの間に時間がかか
り、路盤陥没等の事故が発生しており、また、一度注入
すると孔が塞がってしまうため、再度の注入ができない
という問題があった。[0004] However, in such a conventional backfill injection method, it takes time to drill a hole in the steel pipe after the construction, and a hose for injection is inserted to the position of the drilled hole. It takes time, after all,
It takes a considerable time from the construction of the steel pipe to the injection of the backfill material. For this reason, it is inefficient to inject the backing material every time one roof is installed. Therefore, after several roofs are installed, the backing material is injected at a time. In this way, it takes time between the roof construction and the injection of backfill material, causing accidents such as road subsidence, and the fact that once injected, the holes are blocked, so that the injection cannot be performed again. there were.
【０００５】本発明は上記課題を解決するためのもの
で、鋼管の施工から裏込め材の注入までの時間を短縮す
るとともに、容易に追加注入を行えるようにすることを
目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has as its object to shorten the time from the construction of a steel pipe to the injection of a backfill material and to facilitate additional injection.
【０００６】[0006]
【課題を解決するための手段】本発明は、鋼管の長手方
向に継手を取付けて隣り合う鋼管の継手同士を係合さ
せ、継手をガイドとして鋼管を推進し設置する工法にお
いて、係合する継手の一方を所定間隔ごとに注入孔を形
成した中空状継手とし、中空状継手を通して裏込め材の
注入を行うようにしたことを特徴とする。また、本発明
は、前記中空状継手内に注入管を挿入して前記注入孔を
通して裏込め材の注入を行うようにしたことを特徴とす
る。また、本発明は、前記中空状継手内に挿入する注入
管に数珠状にダブルパッカーを装備し、前記各注入孔を
挟んでダブルパッカーで閉塞空間を形成し、各閉塞空間
から各注入孔を通して一斉に裏込め材を注入するように
したことを特徴とする。また、本発明は、前記注入孔は
手前側から先端に向かって径を変えるようにしたことを
特徴とする。SUMMARY OF THE INVENTION The present invention relates to a method of attaching a joint in the longitudinal direction of a steel pipe, engaging the joints of adjacent steel pipes, and propelling and installing the steel pipe using the joint as a guide. Is a hollow joint in which injection holes are formed at predetermined intervals, and the backfill material is injected through the hollow joint. Further, the present invention is characterized in that an injection pipe is inserted into the hollow joint and the backfill material is injected through the injection hole. In addition, the present invention provides an injection pipe inserted into the hollow joint with a beaded double packer, forms a closed space with the double packer sandwiching each of the injection holes, and passes through each of the injection holes from each of the closed spaces. The feature is that backfill material is injected all at once. Further, the present invention is characterized in that the diameter of the injection hole changes from the near side to the tip.
【０００７】[0007]
【発明の実施の形態】以下、本発明の実施の形態につい
て説明する。図１は本発明で使用する鋼管の構造を説明
する図、図２は図１の拡大断面図、図３は裏込め材の注
入を説明する図、図４は従来工法による裏込め材の注入
と本発明による裏込め材の注入法の違いを説明する図で
ある。Embodiments of the present invention will be described below. 1 is a diagram illustrating the structure of a steel pipe used in the present invention, FIG. 2 is an enlarged cross-sectional view of FIG. 1, FIG. 3 is a diagram illustrating injection of a backfill material, and FIG. FIG. 4 is a diagram for explaining a difference between a backfill material injection method according to the present invention and a backfill material according to the present invention.
【０００８】図１において、隣接する鋼管３０，４０に
はそれぞれ１８０°で向き合う位置に継手３１，３２，
４１，４２が溶接されている。各鋼管の左側の継手３
１，４１は中空状をなしていて、その先端部が相手側の
継手３２，４２と係合するための係合突起部３１ａ，４
１ａとなっている。右側の継手３２，４２はコの字型部
材からなり、開口部３２ａ，４２ａに、継手３１、４１
の係合突起部３１ａ，４１ａが嵌合するようになってい
る。中空状の継手３１，４１には所定間隔で裏込め材を
注入するための注入孔３３、４３が予め穿孔されてい
る。鋼管４０の施工は、鋼管３０を施工した後、図のよ
うにコの字型継手３２の開口部３２ａに中空状継手４１
の係合突起部４１ａを嵌合させ、これをガイドとして推
進する。図２に示すように、中空状継手４１には注入孔
４３が開けられており、この継手４１に注入ホースを挿
入し、注入孔４３から裏込め材の注入を行う。この例で
は注入孔の位置を鉛直線に対して外側（施工する構造物
に対して外側）上４５°の位置に設け、裏込め材が空洞
にうまく回り込むようにしている。もちろ、注入孔の位
置は４５°の位置に限られるものではなく、適宜変更し
ても良い。In FIG. 1, joints 31, 32, and 31 are located at positions facing 180 ° to adjacent steel pipes 30, 40, respectively.
41 and 42 are welded. Joint 3 on the left side of each steel pipe
Reference numerals 1 and 41 are hollow, and the leading end portions thereof are engaged with engagement projections 31 a and 4 for engaging with mating joints 32 and 42.
1a. The right joints 32 and 42 are formed of U-shaped members, and the joints 31 and 41 are provided in the openings 32a and 42a.
Are engaged with each other. Injection holes 33, 43 for injecting the backfill material at predetermined intervals are formed in the hollow joints 31, 41 in advance. After the steel pipe 30 is constructed, the hollow joint 41 is inserted into the opening 32a of the U-shaped joint 32 as shown in the figure.
The engaging projections 41a are fitted to each other, and are propelled as guides. As shown in FIG. 2, an injection hole 43 is formed in the hollow joint 41. An injection hose is inserted into the joint 41, and the backfill material is injected through the injection hole 43. In this example, the position of the injection hole is provided at a position 45 ° above the vertical line (outside the structure to be constructed), so that the backfill material goes around the cavity well. Of course, the position of the injection hole is not limited to the position of 45 °, and may be changed as appropriate.
【０００９】次に、図３により裏込め材の注入について
より詳細に説明する。図３（ａ）は管状継手の縦断面
図、図３（ｂ）は注入孔部拡大図であり、図３（ａ）に
おいて、下側は掘削側、即ち鋼管側であり、注入孔側は
地山側である。環状の継手３１（４１）には、前述した
ように、注入孔３３（４３）が長さ方向に沿って所定間
隔（例えば、６〜７ｍ間隔）で開けられており、各注入
孔を挟む位置にダブルパッカー６０が数珠状に装備され
た注入用ホース５０を挿入する。ダブルパッカー６０は
地質調査等で一般的に使用されているもので、ゴム等の
弾力性部材からなり、外部から空気等の流体圧を圧送し
て膨らませることにより、ダブルパッカーで挟んだ空間
を閉塞空間とするものである。注入用ホース５０には注
入孔３３（４３）に対応した位置に孔が開けられてお
り、注入用ホースを通して流動性の裏込め材を注入する
と、ホースの孔から噴出した裏込め材はダブルパッカー
により密閉されている空間、注入孔３３（４３）を通し
て地山側に噴出し、鋼管の推進により生じた空洞を埋め
る。なお、この例では、図３（ｂ）において、ダブルパ
ッカー同士の間隔は５０ｃｍ、３０ｍｍ間隔で直径６ｍ
ｍの孔４個で１群の注入孔を形成した。裏込め材の材料
としては、硬化時間を４０分とし、商品名デンカＳパッ
クを使用した。なお、裏込め材としては、流動性が高く
所定の時間で硬化するものであれば、どのようなもので
あってもよく、適宜現場に合ったものを使用すればよ
い。Next, the injection of the backfill material will be described in more detail with reference to FIG. 3 (a) is a longitudinal sectional view of the tubular joint, and FIG. 3 (b) is an enlarged view of the injection hole portion. In FIG. 3 (a), the lower side is the excavation side, that is, the steel pipe side, and the injection hole side is It is on the ground side. As described above, in the annular joint 31 (41), the injection holes 33 (43) are formed at predetermined intervals (for example, at intervals of 6 to 7 m) along the length direction. Then, the injection hose 50 provided with the double packer 60 in a rosary shape is inserted. The double packer 60 is generally used in geological surveys and the like, and is made of a resilient member such as rubber. The space between the double packers is formed by inflating a fluid pressure of air or the like from the outside by inflation. This is an enclosed space. A hole is formed in the injection hose 50 at a position corresponding to the injection hole 33 (43). When a fluid backing material is injected through the injection hose, the backfill material ejected from the hose hole is double-packed. Is injected to the ground side through the space 33 and the injection hole 33 (43), which fills the cavity created by the promotion of the steel pipe. In this example, in FIG. 3B, the distance between the double packers is 50 cm, the distance is 30 mm, and the diameter is 6 m.
A group of injection holes was formed with four holes of m. As a material for the backfill material, a curing time of 40 minutes was used, and Denka S-pack (trade name) was used. As the backfill material, any material can be used as long as it has high fluidity and cures in a predetermined time, and a material suitable for the site may be used as appropriate.
【００１０】このようにダブルパッカーを使用して閉塞
空間を形成し、そこに注入用ホースを通して外部から裏
込め材を圧送すると、裏込め材は各閉塞空間から各注入
孔を通して地山側に一斉に噴出して注入が行われる。注
入後、ダブルパッカーを収縮しホースを引き抜くことに
より、ダブルパッカー内に残った裏込め材はダブルパッ
カーにより掻きだされて排出される。従って、再度注入
を行う必要がある場合には、何の支障もなく、注入用ホ
ースおよびダブルパッカーを挿入することができ、パッ
カーを膨らませて閉塞空間を形成し、裏込め材を圧送す
れば、各注入孔を塞いでいた裏込め材は圧力で飛ばされ
て孔が開き、容易に再度の注入を行うことができる。な
お、各注入孔からの噴出量が均等になるように手前側か
ら先端に向かって孔の径を適宜変化させるようにしても
良い。When a closed space is formed by using a double packer as described above and a backfill material is pressure-fed from the outside through an injection hose, the backfill material is simultaneously sent from each closed space to the ground side through each injection hole. Spouting and injection are performed. After the injection, the double packer is contracted and the hose is pulled out, so that the backfill material remaining in the double packer is scraped out by the double packer and discharged. Therefore, when it is necessary to perform injection again, without any trouble, the injection hose and the double packer can be inserted, the packer is inflated to form a closed space, and the backfill material is pumped, The backfill material that has closed each injection hole is blown off by pressure to open a hole, and can be easily injected again. Note that the diameter of the hole may be appropriately changed from the near side to the front end so that the ejection amount from each injection hole becomes uniform.
【００１１】次に、図４により従来の注入工法と本発明
による注入工法を比較すると、現状の注入工法では、鋼
管の内側から孔を開けてここを通して裏込め材を流すた
め、窄孔に時間がかかり、図のＡに示すように十分裏込
め材の注入ができなかった。これに対して、本発明によ
る注入法では、図のＢで示すように、継手部から鋼管施
工毎に裏込め材が注入できるため、十分に鋼管の周囲に
裏込め材が回り込んで空洞を塞いでいることが分かる。Next, a comparison between the conventional injection method and the injection method according to the present invention with reference to FIG. 4 shows that in the current injection method, a hole is formed from the inside of the steel pipe and the backfill material flows through the hole, so that the time required for the narrow hole is reduced. , And the backfill material could not be sufficiently injected as shown in FIG. On the other hand, in the injection method according to the present invention, as shown by B in the figure, since the backfill material can be injected from the joint portion every time the steel pipe is constructed, the backfill material sufficiently wraps around the steel pipe to form a cavity. You can see that it is blocking.
【００１２】なお、本発明は上記の例に限定されるもの
ではなく、いろいろな変形が可能である。例えば、裏込
め材の注入を行う継手の断面形状はどのようなものでも
よく、要は裏込め材の注入を行う中空が形成されていれ
ばよい。また、上記の例では中空状継手内に注入管を挿
入して裏込め材の注入を行うようにしたが、注入管を用
いずに直接継手の中空内に裏込め材を注入してもよい。
また、コの字型継手と中空状継手の位置関係は図示する
ものとは逆であってもよく、また、コの字型継手も中空
状継手と係合する形状であればどのようなものであって
もよい。Note that the present invention is not limited to the above example, and various modifications are possible. For example, the cross-sectional shape of the joint for injecting the backfill material may be any shape. In short, the joint only needs to have a hollow for injecting the backfill material. Further, in the above-described example, the backfill material is injected by inserting the injection pipe into the hollow joint, but the backfill material may be directly injected into the hollow of the joint without using the injection pipe. .
Further, the positional relationship between the U-shaped joint and the hollow joint may be opposite to that shown in the drawing, and the U-shaped joint may be of any shape as long as it engages with the hollow joint. It may be.
【００１３】[0013]
【発明の効果】以上のように本発明によれば、鋼管の継
手を利用して注入できる構造としたため、鋼管自体に穿
孔する従来の方法に比して、注入孔の窄孔時間、および
注入管の設置時間が大幅に短縮できこれにより鋼管施工
後、直ちに注入が可能となり、鋼管背面に空隙が存在す
る時間を短くすることができ、陥没事故等の発生を防止
することが可能である。また、継手の形状は従来のＬ型
鋼から熱間押し抜きによる注入管と継手を兼ねる構造と
し、注入ホースはパッカーを数珠状に装備する構造とし
たため、注入を効率的に行うことができる。また、注入
管が目詰まりを起こしにくい構造であるため、追加注入
も容易であり、空隙状態の確率を少なくし、安全性を向
上させることができる。また、注入孔の両側にダブルパ
ッカーを設置して閉塞空間としたため、裏込め材の注入
管への逆流を防止することも可能である。また、従来の
Ｌ型の継手では２つのＬ型部材で継手を形成していたた
め、溶接個所が多く作業が面倒であったが、本発明では
継手部材が１つの部材からなるため、溶接個所を少なく
し、溶接作業能率を上げることも可能である。As described above, according to the present invention, since the injection can be performed by using the joint of the steel pipe, the time required for forming the injection hole and the time required for the injection can be reduced as compared with the conventional method of piercing the steel pipe itself. The installation time of the pipe can be greatly reduced, so that the injection can be performed immediately after the construction of the steel pipe, and the time during which the gap is present on the back of the steel pipe can be shortened, and the occurrence of a collapse accident or the like can be prevented. In addition, the shape of the joint is formed from a conventional L-shaped steel so as to function as an injection pipe and a joint by hot stamping, and the injection hose has a structure in which packers are provided in a bead shape, so that injection can be performed efficiently. In addition, since the injection tube has a structure that is unlikely to cause clogging, additional injection is easy, the probability of a void state is reduced, and safety can be improved. Further, since double packers are provided on both sides of the injection hole to form a closed space, it is possible to prevent the backfill material from flowing back into the injection pipe. Further, in the conventional L-shaped joint, the joint is formed by two L-shaped members, so that there are many welding points and the operation is troublesome. However, in the present invention, since the joint member is formed of one member, the welding point is reduced. It is also possible to reduce the number and increase the efficiency of welding work.
【図１】 本発明で使用する鋼管の構造を説明する図で
ある。FIG. 1 is a diagram illustrating the structure of a steel pipe used in the present invention.
【図２】 図１の拡大断面図である。FIG. 2 is an enlarged sectional view of FIG.
【図３】 裏込め材の注入を説明する図である。FIG. 3 is a diagram illustrating injection of a backfill material.
【図４】 従来工法による裏込め材の注入と本発明によ
る裏込め材の注入法の違いを説明する図である。FIG. 4 is a view for explaining the difference between the backfill material injection method according to the conventional method and the backfill material injection method according to the present invention.
【図５】 従来の鋼管の施工法を説明する図である。FIG. 5 is a view for explaining a conventional method for constructing a steel pipe.
【図６】 図５の拡大図である。FIG. 6 is an enlarged view of FIG.
３０，４０…鋼管、３１，３２，４１，４２…継手、３
１ａ，４１ａ…係合突起部、３２ａ，４２ａ…開口部、
５０…注入用ホース、６０…ダブルパッカー30, 40 ... steel pipe, 31, 32, 41, 42 ... joint, 3
1a, 41a... Engaging projections, 32a, 42a.
50: injection hose, 60: double packer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 宮嵜祐市 東京都渋谷区代々木二丁目二番二号 東日 本旅客鉄道株式会社内 (72)発明者 星野 正 東京都渋谷区代々木二丁目二番二号 東日 本旅客鉄道株式会社内 (72)発明者 松浦直和 東京都中央区銀座８丁目21番１号 株式会 社竹中土木内 (72)発明者 財前光良 東京都中央区銀座８丁目21番１号 株式会 社竹中土木内 (72)発明者 万ケ谷鉄也 東京都千代田区大手町二丁目６番３号 新 日本製鐡株式會社内 (72)発明者 原村建一 東京都千代田区大手町二丁目６番３号 新 日本製鐡株式會社内 Ｆターム(参考） 2D049 FB03 FB14 FC02 GC00 2D054 FA03 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Miyazaki Yu-shi 2-2-2 Yoyogi, Shibuya-ku, Tokyo East Japan Railway Company (72) Inventor Tadashi Hoshino 2-2-2 Yoyogi, Shibuya-ku, Tokyo No. Tohoku Japan Railway Company (72) Naokazu Matsuura 8-21-1, Ginza, Chuo-ku, Tokyo Incorporated Company Takenaka Civil Engineering Co., Ltd. (72) Mitsuyoshi Zaimae 8-21 Ginza, Chuo-ku, Tokyo No. 1 Takenaka Civil Engineering Co., Ltd. (72) Inventor Tetsuya Mangaya 2-3-6 Otemachi, Chiyoda-ku, Tokyo In-house New Nippon Steel Corporation (72) Inventor Kenichi Haramura Otemachi, Chiyoda-ku, Tokyo 2-6-3 New Nippon Steel Corporation F-term (reference) 2D049 FB03 FB14 FC02 GC00 2D054 FA03
Claims (4)
う鋼管の継手同士を係合させ、継手をガイドとして鋼管
を推進し設置する工法において、係合する継手の一方を
所定間隔ごとに注入孔を形成した中空状継手とし、前記
中空状継手を通して裏込め材の注入を行うようにしたこ
とを特徴とする継手を利用した注入工法。1. A method of attaching a joint in the longitudinal direction of a steel pipe to engage the joints of adjacent steel pipes, and propel and install the steel pipe using the joint as a guide, injecting one of the joints to be engaged at predetermined intervals. An injection method using a joint, wherein a hollow joint having a hole is formed, and a backfill material is injected through the hollow joint.
記注入孔を通して裏込め材の注入を行うようにしたこと
を特徴とする請求項１記載の継手を利用した注入工法。2. An injection method using a joint according to claim 1, wherein an injection pipe is inserted into said hollow joint so that a backfill material is injected through said injection hole.
珠状にダブルパッカーを装備し、前記各注入孔を挟んで
ダブルパッカーで閉塞空間を形成し、各閉塞空間から各
注入孔を通して一斉に裏込め材を注入するようにしたこ
とを特徴とする請求項２記載の注入工法。3. An injection pipe inserted into the hollow joint is provided with a double packer in a rosary shape, and a closed space is formed by the double packer with each of the injection holes interposed therebetween. 3. An injection method according to claim 2, wherein a backfill material is injected into the substrate.
径を変えるようにしたことを特徴とする請求項１または
２記載の注入工法。4. The injection method according to claim 1, wherein the diameter of the injection hole changes from the near side to the front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11003193A JP2000204544A (en) | 1999-01-08 | 1999-01-08 | Injecting method using joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11003193A JP2000204544A (en) | 1999-01-08 | 1999-01-08 | Injecting method using joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000204544A true JP2000204544A (en) | 2000-07-25 |
Family
ID=11550586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11003193A Pending JP2000204544A (en) | 1999-01-08 | 1999-01-08 | Injecting method using joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000204544A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010032485A1 (en) * | 2008-09-18 | 2010-03-25 | 新日本製鐵株式会社 | Steel pipe pile, joint structure of steel pipe sheet pile, and wall structure and method for drawing steel pipe sheet pile |
| JP2014025230A (en) * | 2012-07-25 | 2014-02-06 | Kumagai Gumi Co Ltd | Pipe installation method |
| JP2021095742A (en) * | 2019-12-17 | 2021-06-24 | 株式会社Ｉｈｉ建材工業 | Element joint structure and element connection method |
-
1999
- 1999-01-08 JP JP11003193A patent/JP2000204544A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010032485A1 (en) * | 2008-09-18 | 2010-03-25 | 新日本製鐵株式会社 | Steel pipe pile, joint structure of steel pipe sheet pile, and wall structure and method for drawing steel pipe sheet pile |
| JP4719315B2 (en) * | 2008-09-18 | 2011-07-06 | 新日本製鐵株式会社 | Steel pipe sheet pile, steel pipe sheet pile joint structure, wall structure, and steel pipe sheet pile drawing method |
| JP2014025230A (en) * | 2012-07-25 | 2014-02-06 | Kumagai Gumi Co Ltd | Pipe installation method |
| JP2021095742A (en) * | 2019-12-17 | 2021-06-24 | 株式会社Ｉｈｉ建材工業 | Element joint structure and element connection method |
| JP7349895B2 (en) | 2019-12-17 | 2023-09-25 | 株式会社Ｉｈｉ建材工業 | Element joint structure and element connection method |
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