JP3262416B2 - New pipe leading device for replacing existing buried pipes - Google Patents
New pipe leading device for replacing existing buried pipesInfo
- Publication number
- JP3262416B2 JP3262416B2 JP18109293A JP18109293A JP3262416B2 JP 3262416 B2 JP3262416 B2 JP 3262416B2 JP 18109293 A JP18109293 A JP 18109293A JP 18109293 A JP18109293 A JP 18109293A JP 3262416 B2 JP3262416 B2 JP 3262416B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- existing buried
- new pipe
- leading
- new
- 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 - Lifetime
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、地中に埋設された水道
管等の既設埋設管を非開削で新管に布設替えする工法に
用いる新管先導装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a new pipe leading apparatus used in a method of replacing an existing buried pipe such as a water pipe buried underground with a new pipe without cutting.
【０００２】[0002]
【従来の技術】既設埋設管を非開削で新管に布設替えす
る工法としては、例えば特開昭５７−１２０７８９号公
報、特開昭５９−１７３４９２号公報、特開昭６３−３
１２５９３号公報に示すように、既設埋設管を破砕しな
がら新管を推進して埋設する工法が知られている。2. Description of the Related Art As a method of laying an existing buried pipe to a new pipe without digging, for example, JP-A-57-120789, JP-A-59-173492, and JP-A-63-163
As disclosed in Japanese Patent No. 12593, there is known a method of burying an existing buried pipe by crushing an existing buried pipe while propelling a new pipe.
【０００３】このような工法においては既設埋設管を破
砕しながら新管を推進する際に、その新管の先端部に先
導装置を設けている。この先導装置としては特開昭５７
−１２０７８９号公報に示すように、胴部の先端部にテ
ーパー状の切削面を設け、この切削面により既設埋設管
を破断して破砕しながら後続する新管の推進をガイドす
るようにしたものが知られている。In such a construction method, when a new pipe is propelled while crushing an existing buried pipe, a leading device is provided at the tip of the new pipe. The leading device is disclosed in
As disclosed in JP-A-120789, a tapered cutting surface is provided at the tip of a body portion, and the cutting surface is used to guide the propulsion of a subsequent new pipe while breaking and crushing an existing buried pipe. It has been known.
【０００４】また、特開昭５９−１７３４９２号公報に
示すように、ガイド部材とテーパー状のパイプ拡開部材
を備え、そのガイド部材を既設埋設管に挿入しながら回
転させてパイプ拡開部材に設けたボーリング突起によっ
てボーリング動作して既設埋設管を破砕するようにした
ものが知られている。Further, as disclosed in JP-A-59-173492, a guide member and a tape-shaped pipe expanding member are provided, and the guide member is rotated while being inserted into an existing buried pipe, and is rotated by the pipe expanding member. There is known an apparatus in which an existing buried pipe is crushed by a boring operation performed by a provided boring projection.
【０００５】[0005]
【発明が解決しようとする課題】前者の新管先導装置で
あると、テーパー状の切削面により既設埋設管を直接に
破砕するので、その新管先導装置を押す力が大きくな
り、推進装置が大型となる。さらに、破砕破片が推進さ
れる新設管の外周面に接触する際に引っかかって土中で
回転するため新設管の外装破覆や既設管に近接して埋設
されている他の既設管などを損傷する恐れがある。推進
装置が大型となると新管を推進するための発進立坑が大
きくなり、それだけ路上開削面積が大きくなるので好ま
しくない。また、胴部と既設埋設管とが直接摩擦し胴部
が損傷をうけ易い。With the former new pipe guide device, the existing buried pipe is directly crushed by the tapered cutting surface, so that the pushing force of the new pipe guide device becomes large, and the propulsion device becomes difficult. It becomes large. In addition, the crushed fragments are caught when they come into contact with the outer peripheral surface of the new pipe to be propelled and rotate in the soil, damaging the external wrapping of the new pipe and other existing pipes buried close to the existing pipe. Might be. When the propulsion device becomes large, the starting shaft for propelling the new pipe becomes large, and the area for cutting on the road becomes large, which is not preferable. In addition, the body and the existing buried pipe are directly rubbed, and the body is easily damaged.
【０００６】後者の新管先導装置であると、新管先導装
置を回転しながら、押すことになり、そのための装置が
大変複雑となる。[0006] In the latter case, the new tube leading device is pushed while rotating, and the device for the new tube leading device is very complicated.
【０００７】そこで、本発明は前述の課題を解決できる
ようにした既設埋設管非開削布設替え用新管先導装置を
提供することを目的とする。Accordingly, an object of the present invention is to provide a new pipe leading device for replacing an existing buried pipe without cutting and digging, which can solve the above-mentioned problems.
【０００８】[0008]
【課題を解決するための手段】本発明は、長手方向のス
リットが複数入れられた既設埋設管４内に新管先導装置
１６をガイドとして当該既設埋設管４よりも大径もしく
は同径の新管１５を推進装置１４で順次押し込んで新管
先導装置１６で既設埋設管４を破断切開拡径して新管１
５を順次推進して埋設する既設埋設管非開削布設替えに
用いる新管先導装置１６であって、先導管２０と、この
先導管２０に、前記既設埋設管４の内周面より若干外方
に突出して放射状に取付けた複数の破断切開ローラ２５
と、前記先導管２０に、新管１５の外周面と面一又はそ
の外方に突出して放射状に取付けた複数の拡径ローラ２
６を備え、前記破断切開ローラ２５と拡径ローラ２６は
周方向に位置がずれていることを特徴とする既設埋設管
非開削布設替え用新管先導装置である。According to the present invention, a new pipe having a larger diameter or the same diameter as that of the existing buried pipe 4 is provided in the existing buried pipe 4 in which a plurality of slits in the longitudinal direction are inserted by using the new pipe leading device 16 as a guide. The pipe 15 is sequentially pushed in by the propulsion device 14, and the existing buried pipe 4 is cut and expanded by the new pipe leading device 16 to expand the new pipe 1.
5 is a new pipe leading device 16 used for replacement of an existing buried pipe that is not buried by sequentially propelling the buried pipes 5, the leading pipe 20 and the leading pipe 20 being slightly outside the inner peripheral surface of the existing buried pipe 4. A plurality of protruding radially mounted rupturable cutting rollers 25
And a plurality of radially expanding rollers 2 radially attached to the front conduit 20 so as to be flush with the outer peripheral surface of the new pipe 15 or radially outward.
6, wherein the breaking and cutting roller 25 and the diameter-enlarging roller 26 are displaced in the circumferential direction.
【０００９】[0009]
【作 用】本発明によれば、新管先導装置１６の複数の
破断切開ローラ２５によって既設埋設管４が、そのスリ
ット部分から破断切開され、その後に拡径ローラ２６に
よって新管１５の外径よりも外側に拡径される。したが
って、既設埋設管４を破断切開ローラ２５で容易に切開
し、その後に新管１５の推進に邪魔にならずに外側まで
拡径されるので、既設埋設管は円弧断面のたんざく状と
されて帯状に連なって土中に拡径されているので、既設
埋設管を破片状に破砕することがない故、後続推進され
る新管の外周の外装破覆や既設管に近接して埋設されて
いる他の埋設管などを損傷する恐れもなく、さらに、新
管先導装置１６を回転させたりせずに小さな推進力で既
設埋設管４内に押し込みできて推進装置を小型で、構造
簡単にできるし、新管１５をスムーズに推進埋設でき
る。According to the present invention, the existing buried pipe 4 is cut and incised from its slit portion by a plurality of cut and incision rollers 25 of the new pipe leading device 16, and then the outer diameter of the new pipe 15 is increased by the expanding roller 26. The diameter is expanded outward. Therefore, the existing buried pipe 4 is easily cut by the rupture cutting roller 25 and then expanded to the outside without obstructing the propulsion of the new pipe 15, so that the existing buried pipe has a rounded cross section. The existing buried pipe is not crushed into fragments because the diameter is expanded in the soil in a belt-like shape, so it is buried close to the outer covering of the outer circumference of the new pipe to be subsequently propelled and the existing pipe. There is no risk of damaging other buried pipes and the like, and it is possible to push the new pipe guide device 16 into the existing buried pipe 4 with a small propulsion force without rotating it, thereby making the propulsion device compact and simple in structure. The new pipe 15 can be smoothly propelled and buried.
【００１０】[0010]
【実 施 例】本発明に係る既設埋設管非開削布設替え
工法を図１と図２に基づいて説明する。図１に示すよう
に、道路１の両端部等の所定距離だけ離隔した場所に発
進立坑２と到達立坑３を掘削し、この発進立坑２と到達
立坑３に既設埋設管４を突出させる。[Embodiment] A method of replacing an existing buried pipe without cutting and digging according to the present invention will be described with reference to FIGS. As shown in FIG. 1, a starting shaft 2 and a reaching shaft 3 are excavated at locations separated by a predetermined distance such as both ends of a road 1, and an existing buried pipe 4 is projected from the starting shaft 2 and the reaching shaft 3.
【００１１】発進立坑２により既設埋設管４内にプラズ
マ切断機１０を挿入し、プラズマ発生装置１１よりトー
チ１０ａ先端にプラズマを発生させながらトーチを搭載
したプラズマ切断機１０を既設埋設管４内の延長方向に
沿って移動してその既設埋設管４の長手方向にスリット
を複数入れて破断切開し易くする。このスリットは断続
的に内周面より外周面に亘る切断部としても良いし、外
周面には達しない溝状としても良いが、引火性のガスや
地下水等が既設埋設管内に侵入しないようにするため
や、既設埋設管４の周辺の菅１２やケーブル１３を考慮
すると溝状とすることが好ましい。A plasma cutting machine 10 is inserted into the existing buried pipe 4 by the starting shaft 2, and the plasma cutting apparatus 10 equipped with the torch is mounted on the existing buried pipe 4 while generating plasma at the tip of the torch 10 a from the plasma generator 11. It moves along the extension direction and a plurality of slits are inserted in the longitudinal direction of the existing buried pipe 4 to make it easier to break and incise. This slit may be intermittently a cut portion extending from the inner peripheral surface to the outer peripheral surface, or may be a groove that does not reach the outer peripheral surface, but so that flammable gas or groundwater does not enter the existing buried pipe. In consideration of this, and in consideration of the tube 12 and the cable 13 around the existing buried pipe 4, the groove is preferably used.
【００１２】前記プラズマ切断機１０、プラズマ発生装
置１１等を撤去して図２に示すように発進立坑２に推進
装置１４を設け、この推進装置１４によって新管１５を
新管先導装置１６をガイドとして推進既設埋設管４を破
断切開しながら、その切開した部分を拡径して順次新設
管を推進して埋設する。The propulsion device 14 is provided in the starting shaft 2 as shown in FIG. 2 by removing the plasma cutting machine 10, the plasma generation device 11 and the like, and the propulsion device 14 guides the new tube 15 to the new tube leading device 16. While the protruding existing buried pipe 4 is cut and incised, the incised portion is expanded in diameter and a new pipe is sequentially propelled and buried.
【００１３】次に新管先導装置の詳細を図３ないし図８
を参照して説明する。先導管２０は小径先端部２１とテ
ーパー状中間部２２と大径後端部２３より成り、その小
径先端部２１にはガイドローラ２４が放射状に複数取付
けられ、テーパー状中間部２２には破断切開ローラ２５
が放射状に複数取付けられ、大径後端部２３には拡径ロ
ーラ２６が放射状に複数取付けてある。なお、先導管２
０は同一径の先端部、中間部、後端部を有するものとし
ても良い。Next, the details of the new tube leading device will be described with reference to FIGS.
This will be described with reference to FIG. The leading conduit 20 comprises a small-diameter front end portion 21, a tapered intermediate portion 22, and a large-diameter rear end portion 23. A plurality of guide rollers 24 are radially attached to the small-diameter front end portion 21. Roller 25
A plurality of radially extending rollers 26 are radially attached to the large-diameter rear end portion 23. In addition, the first pipe 2
0 may have a front end portion, a middle portion, and a rear end portion having the same diameter.
【００１４】前記小径先端部２１は既設埋設管４よりも
小径となり、かつ複数の開口部２７が周方向に複数形成
され、ガイドローラ２４は、その支軸２４ａがブラケッ
ト２８に設けた一対のブロック３４にボルト止めしたキ
ャップ３５で推進方向に回転自在に支承されて開口部２
７より外部に突出し、その複数のガイドローラ２４の成
す仮想円弧は前記既設埋設管４の内径と同一又は若干小
さくなってガイドローラ２４は既設埋設管４内の内周面
に接触又は若干の隙間を有して対向する。The small-diameter end portion 21 has a diameter smaller than that of the existing buried pipe 4, a plurality of openings 27 are formed in the circumferential direction, and the guide roller 24 includes a pair of blocks whose support shafts 24a are provided on a bracket 28. The opening 2 is rotatably supported in the propulsion direction by a cap 35 bolted to the opening 34.
7, the virtual arc formed by the plurality of guide rollers 24 is the same as or slightly smaller than the inner diameter of the existing buried pipe 4, and the guide rollers 24 contact the inner peripheral surface in the existing buried pipe 4 or have a slight gap. And facing each other.
【００１５】前記テーパー状中間部２２には開口部３２
が周方向に間隔を置いて複数形成され、破断ローラ２５
はブラケット３３に前述と同様にして推進方向に回転自
在に支承されて開口部３２より外部に突出し、その複数
の破断切開ローラ２５の成す仮想円弧は前記既設埋設管
４の内径よりも若干大きく（実験によると１０ｍｍ程度
が良い）なって破断切開ローラ２５は既設埋設管４の内
周面に圧接する。An opening 32 is formed in the tapered intermediate portion 22.
Are formed at intervals in the circumferential direction.
Is rotatably supported by the bracket 33 in the propulsion direction in the same manner as described above, and protrudes outside through the opening 32. The virtual arc formed by the plurality of cut-away rollers 25 is slightly larger than the inner diameter of the existing buried pipe 4 ( According to an experiment, about 10 mm is good), and the breaking and cutting roller 25 is pressed against the inner peripheral surface of the existing buried pipe 4.
【００１６】前記大径後端部２３は新管１５とほぼ同一
径となり、その大径後端部２３には開口部３７が周方向
に間隔を置いて複数形成され、拡径ローラ２６はブラケ
ット３８に前述と同様にして推進方向に回転自在に支承
されて開口部３７より外部に突出し、その複数の拡径ロ
ーラ２６の成す仮想円弧は前記新管１５の外径よりも若
干大きいか等しくなって拡径ローラ２６は破断切開した
既設埋設管４を新管１６よりも外側に拡径する。The large-diameter rear end 23 has substantially the same diameter as the new pipe 15. The large-diameter rear end 23 has a plurality of openings 37 formed at intervals in the circumferential direction. At 38, it is rotatably supported in the propulsion direction in the same manner as described above, and projects outward from the opening 37. The virtual arc formed by the plurality of expanding rollers 26 is slightly larger or equal to the outer diameter of the new pipe 15. The diameter-expanding roller 26 expands the diameter of the existing buried pipe 4 that has been cut and cut outside the new pipe 16.
【００１７】前記、推進装置１４は図２に示すように新
管１５を押す推進ジャッキ１７とコントローラ１８と油
圧ユニット１９より成り、新管先導装置１６をガイドと
して新管１５を推進する。The propulsion device 14 comprises a propulsion jack 17 for pushing the new tube 15, a controller 18 and a hydraulic unit 19, as shown in FIG.
【００１８】次に第２実施例を説明する。図９に示すよ
うに、ガイドローラ２４と破断切開ローラ２５を備えた
第１先導管２０ａと拡径ローラ２６を備えた第２先導管
２０ｂを油圧シリンダ４０で連結し、その油圧シリンダ
４０を伸縮することで第１先導管２０ａと第２先導管２
０ｂを交互に既設埋設管４内に推進することで新管１５
を布設替えするようにしてある。Next, a second embodiment will be described. As shown in FIG. 9, a first leading conduit 20a having a guide roller 24 and a breaking and cutting roller 25 and a second leading conduit 20b having a diameter-enlarging roller 26 are connected by a hydraulic cylinder 40, and the hydraulic cylinder 40 is expanded and contracted. By doing so, the first leading conduit 20a and the second leading conduit 2
0b are alternately propelled into the existing buried pipe 4 to form a new pipe 15b.
Is to be replaced.
【００１９】次に第３実施例を説明する。図１０の
（ａ）に示すようにガイドローラ２４と破断切開ローラ
２５を備えた第１先導管２０ａを既設埋設管４内に推進
し、この後に図１０の（ｂ）に示すように拡径ローラ２
５を備えた第２先導管２０ｂを既設埋設管４内に推進し
て新管１５を布設替えする。Next, a third embodiment will be described. As shown in FIG. 10 (a), a first leading conduit 20a provided with a guide roller 24 and a rupture incision roller 25 is propelled into the existing buried pipe 4, and thereafter the diameter is increased as shown in FIG. 10 (b). Roller 2
5 is propelled into the existing buried pipe 4 to replace the new pipe 15.
【００２０】[0020]
【発明の効果】請求項１に係る発明によれば、新管先導
装置１６の複数の破断切開ローラ２５によって既設埋設
管４が、そのスリット部分から破断切開され、その後に
拡径ローラ２６によって新管１５の外径よりも外側に拡
径される。したがって、既設埋設管４を破断切開ローラ
２５で容易に切開し、その後に新管１５の推進に邪魔に
ならずに外側まで拡径されるので、既設埋設管は円弧断
面のたんざく状とされて帯状に連なって土中に拡径され
ているので、既設埋設管を破片状に破砕することがない
故、後続推進される新管の外周の外装破覆や既設管に近
接して埋設されている他の埋設管などを損傷する恐れも
なく、さらに、新管先導装置１６を回転させたりせずに
小さな推進力で既設埋設管４内に押し込みできて推進装
置を小型で、構造簡単にできるし、新管１５をスムーズ
に推進埋設できる。しかも、もっぱら既設埋設管と接触
するのは各ローラであるから、そのローラのみが摩耗・
損傷して先導管２０を摩耗・損傷することがなく、摩耗
・損傷したローラのみを交換すれば先導管２０を長施行
区間に亘って繰返し使用できる。According to the first aspect of the present invention, the existing buried pipe 4 is cut and cut through the slit portion by the plurality of cut and cut rollers 25 of the new pipe leading device 16 and then is newly cut by the diameter expanding roller 26. The diameter is expanded outside the outer diameter of the tube 15. Therefore, the existing buried pipe 4 is easily cut by the rupture cutting roller 25 and then expanded to the outside without obstructing the propulsion of the new pipe 15, so that the existing buried pipe has a rounded cross section. The existing buried pipe is not crushed into fragments because the diameter is expanded in the soil in a belt-like shape, so it is buried close to the outer covering of the outer circumference of the new pipe to be subsequently propelled and the existing pipe. There is no risk of damaging other buried pipes and the like, and it is possible to push the new pipe guide device 16 into the existing buried pipe 4 with a small propulsion force without rotating it, thereby making the propulsion device compact and simple in structure. The new pipe 15 can be smoothly propelled and buried. Moreover, since each roller is in contact exclusively with the existing buried pipe, only that roller wears out.
The front conduit 20 can be used repeatedly over a long working section by replacing only the worn or damaged roller without damaging the front conduit 20.
【図１】既設埋設管にスリットを入れる装置の概略説明
図である。FIG. 1 is a schematic explanatory view of an apparatus for slitting an existing buried pipe.
【図２】新管を推進埋設する装置の概略説明図である。FIG. 2 is a schematic explanatory view of an apparatus for propelling and embedding a new pipe.
【図３】新管先導装置の平面図である。FIG. 3 is a plan view of a new tube leading device.
【図４】新管先導装置の正面図である。FIG. 4 is a front view of the new tube leading device.
【図５】図４のＡ−Ａ断面図である。FIG. 5 is a sectional view taken along line AA of FIG. 4;
【図６】図４のＢ−Ｂ断面図である。FIG. 6 is a sectional view taken along line BB of FIG. 4;
【図７】図４のＣ−Ｃ断面図である。FIG. 7 is a sectional view taken along line CC of FIG. 4;
【図８】図４のＤ−Ｄ断面図である。FIG. 8 is a sectional view taken along line DD of FIG. 4;
【図９】第２実施例の説明図である。FIG. 9 is an explanatory diagram of a second embodiment.
【図１０】第３実施例の説明図である。FIG. 10 is an explanatory diagram of a third embodiment.
４…既設埋設管、１４…推進装置、１５…新管、１６…
新管先導装置、２０…先導管、２４…ガイドローラ、２
５…破断切開ローラ、２６…拡径ローラ。4: Existing buried pipe, 14: Propulsion device, 15: New pipe, 16 ...
New pipe leading device, 20: leading conduit, 24: guide roller, 2
5: Breaking incision roller, 26: Roller with increased diameter.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 菊池 雄一 東京都港区芝浦一丁目２−３ 清水建設 株式会社内 (72)発明者 大久保 研二 東京都港区芝浦一丁目２−３ 清水建設 株式会社内 (72)発明者 野村 直他 石川県小松市符津町ツ23番地 株式会社 小松製作所 粟津工場内 (72)発明者 赤木 秀昭 大阪府枚方市上野２−２−20 小松精機 株式会社内 (56)参考文献 特開 平２−266185（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) E21D 9/06 311 F16L 1/024 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuichi Kikuchi 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Kenji Okubo 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Naomura Nomura and others 23 Atsuzu-cho, Komatsu-shi, Ishikawa Prefecture Inside Awazu Plant, Komatsu Ltd. (72) Inventor Hideaki Akagi 2-2-20 Ueno, Hirakata-shi, Osaka Komatsu Seiki Co., Ltd. (56) References JP-A-2-266185 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) E21D 9/06 311 F16L 1/024
Claims (3)
設埋設管４内に新管先導装置１６をガイドとして当該既
設埋設管４よりも大径もしくは同径の新管１５を推進装
置１４で順次押し込んで新管先導装置１６で既設埋設管
４を破断切開拡径して新管１５を順次推進して埋設する
既設埋設管非開削布設替えに用いる新管先導装置１６で
あって、先導管２０と、 この先導管２０に、前記既設埋設管４の内周面より若干
外方に突出して放射状に取付けた複数の破断切開ローラ
２５と、 前記先導管２０に、新管１５の外周面と面一又はその外
方に突出して放射状に取付けた複数の拡径ローラ２６を
備え、 前記破断切開ローラ２５と拡径ローラ２６は周方向に位
置がずれていることを特徴とする既設埋設管非開削布設
替え用新管先導装置。 1. A new pipe 15 having a diameter larger than or equal to that of the existing buried pipe 4 is guided by a new pipe leading device 16 into the existing buried pipe 4 having a plurality of longitudinal slits. The new pipe guide device 16 is used to replace the existing buried pipe non-cutting cloth which is sequentially pushed in by the propulsion device 14, cuts and expands the existing buried pipe 4 with the new pipe guide device 16, and sequentially buries the new pipe 15 to bury it. Therefore , the leading pipe 20 and the leading pipe 20 are slightly attached to the inner peripheral surface of the existing buried pipe 4.
Radially mounted multiple fracture cutting rollers protruding outward
25 and the front conduit 20 are flush with the outer peripheral surface of the new pipe 15 or outside thereof.
A plurality of radially extending rollers 26 protruding toward
The break incision roller 25 and the diameter increasing roller 26 are positioned in the circumferential direction.
The existing buried pipe is not cut and laid, which is characterized by misalignment
Replacement new pipe leading device.
管４の内周面より１０ｍｍ程度突出している請求項１記
載の既設埋設管非開削布設替え用新管先導装置。 2. Each of the breaking and cutting rollers 25 is an existing embedded cutting roller.
2. The projection according to claim 1, wherein the projection projects from the inner peripheral surface of the tube by about 10 mm.
New pipe leading device for replacing existing buried pipe uncutting cloth.
を備えた第１先導管２０ａと、拡径ローラ２６を備えた
第２先導管２０ｂに分割し、その第１・第２先導管２０
ａ，２０ｂを油圧シリンダ４０で連結した請求項１又は
２記載の既設埋設管非開削布設替え用新管先導装置。 3. A cutting incision roller 25 is connected to the leading conduit 20.
And a first leading conduit 20a having a diameter increasing roller 26.
The first and second first conduits 20b are divided into second first conduits 20b.
a, 20b connected by a hydraulic cylinder 40;
2. A new pipe leading device for replacing an existing buried pipe uncutting cloth according to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18109293A JP3262416B2 (en) | 1993-07-22 | 1993-07-22 | New pipe leading device for replacing existing buried pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18109293A JP3262416B2 (en) | 1993-07-22 | 1993-07-22 | New pipe leading device for replacing existing buried pipes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0734778A JPH0734778A (en) | 1995-02-03 |
| JP3262416B2 true JP3262416B2 (en) | 2002-03-04 |
Family
ID=16094692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18109293A Expired - Lifetime JP3262416B2 (en) | 1993-07-22 | 1993-07-22 | New pipe leading device for replacing existing buried pipes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3262416B2 (en) |
-
1993
- 1993-07-22 JP JP18109293A patent/JP3262416B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0734778A (en) | 1995-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101542929B1 (en) | Non-digging type boring device for forming pipe conduit in ground and no-digging boring method | |
| JP6121435B2 (en) | System to reclaim the space of the conduit | |
| JP3304051B2 (en) | Pipe updating equipment | |
| JP2007039934A (en) | Equipment and method for enlarging diameter, and re-laying method | |
| JP3262416B2 (en) | New pipe leading device for replacing existing buried pipes | |
| JP3301562B2 (en) | Existing buried pipe non-cutting cloth replacement method | |
| JP3389080B2 (en) | Pipe updating equipment | |
| JP3301563B2 (en) | New pipe leading device for replacing existing buried pipes | |
| JP2604455B2 (en) | Existing pipe non-cutting cloth replacement equipment | |
| JP2002004768A (en) | Device and method of replacing existing pipe | |
| JP2939292B2 (en) | Removal method of buried pipe | |
| JPH0734779A (en) | Driving device for replacing existing buried pipe without performing excavation | |
| JP2002227589A (en) | Traction apparatus | |
| KR20080074453A (en) | Steel pipe pressing apparatus for changing old pipe and pressing method using it | |
| JP2583204B2 (en) | Updating existing buried pipes | |
| JPH0842287A (en) | Existing buried pipe non-excavation replacement method | |
| JP2506580B2 (en) | Non-open cutting pipeline renewal / expansion method for underground pipes | |
| JP3301561B2 (en) | Existing buried pipe non-cutting cloth replacement method | |
| JP3696314B2 (en) | Excavator and excavation method | |
| JPH1025993A (en) | Re-laying device of buried pipe and method of re-laying construction | |
| JPH064149Y2 (en) | A device that replaces an existing main with a new main | |
| JP2002266590A (en) | Existing pipe replacing method | |
| WO2001027433A1 (en) | Method and apparatus for replacing a conduit | |
| JPH0754585A (en) | New tube leading device for replacing buried tube without cutting and covering | |
| JPH10184996A (en) | Method for changing underground buried resin pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071221 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081221 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081221 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091221 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091221 Year of fee payment: 8 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091221 Year of fee payment: 8 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101221 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101221 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111221 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111221 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121221 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121221 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131221 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term |