JPH0755057A - Construction method for replacing buried pipe without open-cut and relaying and new pipe leading device used therefor - Google Patents
Construction method for replacing buried pipe without open-cut and relaying and new pipe leading device used thereforInfo
- Publication number
- JPH0755057A JPH0755057A JP5199393A JP19939393A JPH0755057A JP H0755057 A JPH0755057 A JP H0755057A JP 5199393 A JP5199393 A JP 5199393A JP 19939393 A JP19939393 A JP 19939393A JP H0755057 A JPH0755057 A JP H0755057A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- new
- new pipe
- leading device
- existing buried
- 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
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
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及
びその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 method for replacing an existing buried pipe such as a water pipe buried in the ground with a new pipe without cutting and a new pipe leading device used for the method.
【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 for replacing an existing buried pipe with a new pipe without cutting, for example, as shown in JP-A-57-120789 and JP-A-59-173492, the existing buried pipe is crushed. On the other hand, a method of promoting and burying a new pipe is known.
【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 the existing buried pipe is crushed and a new pipe is propelled, a leading device is provided at the tip of the new pipe. As this leading device, Japanese Patent Laid-Open No. 57-57
As disclosed in JP-A-120789, a tapered cutting surface is provided at the tip of the body, and the cutting surface is used to guide the propelling of a new pipe while breaking and crushing the 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 shown in Japanese Patent Laid-Open No. 173492/1984, a guide member and a tapered pipe expanding member are provided, and the guide member is rotated while being inserted into an existing buried pipe so as to be provided on the pipe expanding member. It is known that the existing buried pipe is crushed by a boring protrusion that performs a boring operation.
【0005】[0005]
【発明が解決しようとする課題】前述の工法であると新
管先導装置と新管を推進装置により同時に押すので、推
進装置の推進力は新管を押す力と新管先導装置を押す力
の和に見合う値となり、その新管先導装置は既設埋設管
を破砕しながら推進するので、その新管先導装置を押す
力が大きく、しかも新管は地中に推進するので新管を押
す力も大きいものとなる。このために推進装置の推進力
が大きくなり、推進装置が大型となる。推進装置が大型
となると新管を推進するための発信立坑が大きくなり、
それだけ開削面積が大きくなるので好ましくない。[Problems to be Solved by the Invention] With the above-mentioned construction method, the new pipe leading device and the new pipe are pushed simultaneously by the propulsion device. The new pipe leading device is propelled while crushing the existing buried pipe, so the pushing force of the new pipe leading device is large, and the pushing force of the new pipe is also large because the new pipe is pushed into the ground. Will be things. For this reason, the propulsion force of the propulsion device becomes large, and the propulsion device becomes large. The larger the propulsion device, the larger the transmission shaft for propelling the new pipe,
This is not preferable because the excavated area becomes larger accordingly.
【0006】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工法及びその工法
に用いる新管先導装置を提供することを目的とする。Therefore, an object of the present invention is to provide an existing buried pipe non-open cutting cloth replacement construction method capable of solving the above-mentioned problems and a new pipe leading device used in the construction method.
【0007】[0007]
【課題を解決するための手段】既設埋設管4内に新管先
導装置6を所定ストローク押し込んで新管先導装置6で
既設埋設管4を破断し、その後に新管7を所定ストロー
ク推進して埋設し、この動作を繰り返す既設埋設管非開
削布設切替え工法。既設埋設管4を破断する本体10の
後端部に新管7より若干大径筒状のガイド14を取付け
た既設埋設管非開削布設替え工法に用いる新管先導装
置。[Means for Solving the Problems] The new pipe leading device 6 is pushed into the existing buried pipe 4 by a predetermined stroke to break the existing buried pipe 4 by the new pipe leading device 6, and then the new pipe 7 is driven by a predetermined stroke. An existing buried pipe non-open cutting installation switching method that is buried and repeats this operation. A new pipe leading device used for the existing buried pipe non-open cutting cloth replacement construction method in which a guide 14 having a diameter slightly larger than that of the new pipe 7 is attached to a rear end portion of a main body 10 that breaks the existing buried pipe 4.
【0008】[0008]
【作 用】新管先導装置6と新管7を交互に推進する
から、推進装置5の推進力は新管先導装置6を推進する
力又は新管7を推進する力の大きい方のみで良く、推進
装置5の推進力を従来よりも小さくできるから、推進装
置5を小型にできる。新管先導装置6のガイド14によ
って地中に空洞部を構成できるから、新管7を地中にス
ムーズに推進埋設できる。[Operation] Since the new pipe leading device 6 and the new pipe 7 are alternately propelled, the propulsion force of the propulsion device 5 is only required to have a large force to propel the new pipe leading device 6 or the new pipe 7. Since the propulsion force of the propulsion device 5 can be made smaller than in the conventional case, the propulsion device 5 can be made compact. Since the hollow portion can be formed in the ground by the guide 14 of the new pipe leading device 6, the new pipe 7 can be smoothly and buried in the ground.
【0009】[0009]
【実 施 例】本発明に係る既設埋設非開削布設替え工
法を図1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。前記発進立坑2に推進装置
5を設け、この推進装置5によって新管先導装置6を所
定ストローク推進して既設埋設管4を複数の円弧状片に
破断して拡径し、その後に新管7をその破断して拡径し
た部分に新管先導装置6をガイドとして推進し、以後こ
の動作を繰り返して新管7を順次埋設する。なお、新管
7を埋設する以前にプラズマトーチなどで既設埋設管4
の内面に溝状の傷をつけるなどして破断し易いようにし
ても良い。[Example] An existing buried non-open cutting cloth replacement method according to the present invention will be described with reference to FIG. As shown in FIG. 1, the starting shaft 2 is located at a predetermined distance such as at both ends of the road 1.
And the reaching shaft 3 is excavated, and the existing buried pipe 4 is projected to the starting shaft 2 and the reaching shaft 3. A propulsion device 5 is provided on the starting shaft 2, and the propulsion device 5 propels a new pipe leading device 6 for a predetermined stroke to break the existing buried pipe 4 into a plurality of arc-shaped pieces to expand the diameter thereof, and then, the new pipe 7 The new pipe leading device 6 is propelled to the broken and expanded portion by using the new pipe leading device 6 as a guide, and thereafter, this operation is repeated to successively embed the new pipe 7. Before burying the new pipe 7, use a plasma torch or the like to replace the existing buried pipe 4.
It may be possible to make it easy to break by giving a groove-like scratch to the inner surface of the.
【0010】前記新管先導装置6は図2に示すように、
本体10の前端寄りにガイドローラ11、中間部に破断
切開ローラ12、後端寄りに拡径ローラ13を取付ける
と共に、その本体10の後端部に筒状のカバー14を取
付けて成り、前記本体10は各ローラを備えた筒状体1
5の後端部に取付板16を固着したもので、この取付板
16にカバー14の前端開口縁に固着したフランジ17
がボルト18で固着され、そのカバー14の長さは推進
装置5の最大推進ストロークより若干大きいか同じ寸法
で新管6よりも若干大径となり、その取付板16の中央
後面に後述する中押杆22がボルト19で取付けてあ
る。この中押杆22は小径管、H鋼などである。As shown in FIG. 2, the new pipe leading device 6 is
A guide roller 11 is provided near the front end of the main body 10, a breaking and cutting roller 12 is provided at the middle portion, a diameter expanding roller 13 is provided near the rear end, and a cylindrical cover 14 is attached to the rear end portion of the main body 10. 10 is a tubular body 1 provided with each roller
5, a mounting plate 16 is fixed to the rear end portion of the cover 5, and a flange 17 is fixed to the mounting plate 16 at the front end opening edge of the cover 14.
Are fixed with bolts 18, and the length of the cover 14 thereof is slightly larger than the maximum propulsion stroke of the propulsion device 5 or slightly larger than that of the new pipe 6 with the same size. A rod 22 is attached with a bolt 19. The middle push rod 22 is a small diameter pipe, H steel or the like.
【0011】次に図3に基づいて新管の埋設作業を工程
順に説明する。図3(a)に示すように、推進装置5は
ジャッキ20と押板21より成る。発進立坑2内に新管
先導装置6を配設して本体10を既設埋設管4内に挿入
し、カバー14を押板21に当接すると共に、中押杆2
2を押板21に接する。この状態でジャッキ20により
押板21と中押杆22を介して新管先導装置6を押して
既設埋設管4を破断して拡径しながら推進して図3
(b)に示すようにカバー14により地中に新管挿入空
間部23を構成し、押板21を元の位置にもどす。この
時中押杆22は本体10側に残す。Next, the burying work of the new pipe will be described in the order of steps with reference to FIG. As shown in FIG. 3A, the propulsion device 5 includes a jack 20 and a push plate 21. The new pipe leading device 6 is arranged in the starting shaft 2, the main body 10 is inserted into the existing buried pipe 4, the cover 14 is brought into contact with the push plate 21, and the middle push rod 2
2 is contacted with the push plate 21. In this state, the jack 20 pushes the new pipe leading device 6 through the push plate 21 and the intermediate push rod 22 to rupture the existing buried pipe 4 and propel it while expanding its diameter.
As shown in (b), the cover 14 constitutes a new pipe insertion space 23 in the ground, and the push plate 21 is returned to its original position. At this time, the middle push rod 22 is left on the main body 10 side.
【0012】この後に図3(b)のように発進立坑2内
に新管7を入れ、押板21により押して図3(c)のよ
うにカバー14内に新管7を推進する。そして、押板2
1をもとの位置にもどして図3(c)に示すように押板
21と中押杆22との間に次の中押杆22を取付けて押
板21を押して新管先導装置6を既設埋設管4を破断し
ながら所定ストローク推進する。この動作を繰り返して
新管7を順次推進埋設する。After this, as shown in FIG. 3 (b), the new pipe 7 is put into the starting shaft 2 and pushed by the push plate 21 to propel the new pipe 7 into the cover 14 as shown in FIG. 3 (c). And the push plate 2
3 to the original position, and as shown in FIG. 3 (c), attach the next middle push rod 22 between the push plate 21 and the middle push rod 22 and push the push plate 21 to set the new pipe leading device 6 in place. The existing buried pipe 4 is broken and the predetermined stroke is promoted. By repeating this operation, the new pipe 7 is sequentially pushed and buried.
【0013】図4は第2実施例を示し、到達立坑3に第
1・第2ドラム30,31を備えたウインチ32を設置
して推進装置5とし、この第1ドラム30に巻掛けた第
1ロープ33を新管先導装置6に連結し、第2ドラム3
1に巻掛けた第2ロープ34を新管先導装置6内を挿通
して新管7に連結し、第1ドラム30と第2ドラム31
を交互に巻取り駆動して新管先導装置6と新管7を所定
ストローク交互に推進するようにする。FIG. 4 shows a second embodiment, in which a winch 32 having first and second drums 30 and 31 is installed in the reaching shaft 3 to form a propulsion device 5, which is wound around the first drum 30. 1 rope 33 is connected to the new pipe leading device 6, and the second drum 3
The second rope 34 wound around 1 is inserted into the new pipe leading device 6 and connected to the new pipe 7, and the first drum 30 and the second drum 31 are connected.
Are alternately driven to wind the new pipe leading device 6 and the new pipe 7 alternately by a predetermined stroke.
【0014】この場合の新管先管装置6は図5に示すよ
うに本体10と取付板16に亘ってパイプ35を取付け
て前後部に連通した空洞部36を構成し、この空洞部3
6に第2ロープ34を挿通して新管7に連結する構造と
すれば良い。As shown in FIG. 5, the new pipe tip device 6 in this case is provided with a pipe 35 extending from the main body 10 to the attachment plate 16 to form a cavity portion 36 communicating with the front and rear portions.
The second rope 34 may be inserted through 6 and connected to the new pipe 7.
【0015】[0015]
【発明の効果】新管先導装置6と新管7を交互に推進す
るから、推進装置5の推進力は新管先導装置6を推進す
る力又は新管7を推進する力の大きい方のみで良く、推
進装置5の推進力を従来よりも小さくできるから、推進
装置5を小型にできる。したがって、発進立坑、到達立
坑を小さくできて開削面積を小さくできるので、非開削
布設替え工法の利点を最大限得ることができる。Since the new pipe leading device 6 and the new pipe 7 are alternately propelled, the propulsive force of the propulsion device 5 is limited to the one that propels the new pipe leading device 6 or the new pipe 7. Since the propulsion force of the propulsion device 5 can be made smaller than that of the conventional one, the propulsion device 5 can be downsized. Therefore, since the starting shaft and the reaching shaft can be made small and the excavation area can be made small, the advantages of the non-excavation cloth replacement method can be maximized.
【図1】本発明の第1実施例を示す斜視図である。FIG. 1 is a perspective view showing a first embodiment of the present invention.
【図2】新管先導装置の第一実施例を示す正面図であ
る。FIG. 2 is a front view showing a first embodiment of a new pipe leading device.
【図3】施工手順の説明図である。FIG. 3 is an explanatory diagram of a construction procedure.
【図4】本発明の第2実施例を示す斜視図である。FIG. 4 is a perspective view showing a second embodiment of the present invention.
【図5】新管先導装置の第2実施例を示す正面図であ
る。FIG. 5 is a front view showing a second embodiment of the new pipe leading device.
4…既設埋設管、5…推進装置、6…新管先導装置、7
…新管、10…本体、14…カバー。4 ... Existing buried pipe, 5 ... Propulsion device, 6 ... New pipe leading device, 7
… New pipe, 10… Main body, 14… Cover.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大久保 研二 東京都港区芝浦1−2−3 清水建設株式 会社内 (72)発明者 小田原 卓郎 東京都港区芝浦1−2−3 清水建設株式 会社内 (72)発明者 脇 登志夫 東京都港区芝浦1−2−3 清水建設株式 会社内 (72)発明者 野村 直也 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 清水 洋 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 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Kenji Okubo 1-2-3 Shibaura, Minato-ku, Tokyo Shimizu Corporation Stock Company (72) Inventor Takuro Odawara 1-2-3 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Toshio Waki 1-2-3 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Innovator Naoya Nomura 23 Tsutsutsu, Komatsu-cho, Ishikawa Prefecture Komatsu Ltd. Awazu Plant (72) Inventor Hiroshi Shimizu 23-23 Tsutsumi-cho, Komatsu City, Ishikawa Prefecture Komatsu Ltd. Awazu Plant
Claims (3)
ストローク押し込んで新管先導装置6で既設埋設管4を
破断し、その後に新管7を所定ストローク推進して埋設
し、この動作を繰り返すことを特徴とする既設埋設管非
開削布設替え工法。1. A new pipe leading device 6 is pushed into an existing buried pipe 4 by a predetermined stroke to break the existing buried pipe 4 by the new pipe leading device 6, and then a new pipe 7 is driven by a predetermined stroke to be buried. An existing buried pipe non-open cutting cloth replacement method characterized by repeating operations.
部に新管7より若干大径筒状のガイド14を取付けたこ
とを特徴とする既設埋設管非開削布設替え工法に用いる
新管先導装置。2. A new non-open cutting cloth replacement method for an existing buried pipe, characterized in that a guide 14 having a diameter slightly larger than that of the new pipe 7 is attached to a rear end portion of a main body 10 which breaks the existing buried pipe 4. Pipe leading device.
ガイド14を有する新管先導装置6を所定ストローク押
し込んで既設埋設管4を複数の円弧状片に破断して拡径
し、かつその破断して拡径した既設埋設管4部分にガイ
ド14を位置させ、この後に新管7を前記ガイド14内
に推進させ、この動作を繰り返すことを特徴とする既設
埋設管非開削布設替え工法。3. A new pipe leading device 6 having a fracture cutout portion, a diameter expansion portion and a guide 14 is pushed into the existing buried pipe 4 by a predetermined stroke to break the existing buried pipe 4 into a plurality of arc-shaped pieces to expand the diameter thereof. Further, the guide 14 is positioned on the portion of the existing buried pipe 4 that has been broken and expanded in diameter, and after that, the new pipe 7 is propelled into the guide 14, and this operation is repeated. Replacement method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19939393A JP3301560B2 (en) | 1993-08-11 | 1993-08-11 | Replacement method of existing buried pipe uncutting cloth and new pipe leading device used for the method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19939393A JP3301560B2 (en) | 1993-08-11 | 1993-08-11 | Replacement method of existing buried pipe uncutting cloth and new pipe leading device used for the method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0755057A true JPH0755057A (en) | 1995-03-03 |
JP3301560B2 JP3301560B2 (en) | 2002-07-15 |
Family
ID=16407039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19939393A Expired - Fee Related JP3301560B2 (en) | 1993-08-11 | 1993-08-11 | Replacement method of existing buried pipe uncutting cloth and new pipe leading device used for the method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3301560B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6588983B1 (en) * | 1993-07-27 | 2003-07-08 | Tenbusch, Ii Albert A. | Trenchless pipe replacement apparatus and technique |
JP2014141809A (en) * | 2013-01-23 | 2014-08-07 | Toho Gas Co Ltd | Pipe renewal device |
-
1993
- 1993-08-11 JP JP19939393A patent/JP3301560B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6588983B1 (en) * | 1993-07-27 | 2003-07-08 | Tenbusch, Ii Albert A. | Trenchless pipe replacement apparatus and technique |
JP2014141809A (en) * | 2013-01-23 | 2014-08-07 | Toho Gas Co Ltd | Pipe renewal device |
Also Published As
Publication number | Publication date |
---|---|
JP3301560B2 (en) | 2002-07-15 |
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