JP3301560B2 - Replacement method of existing buried pipe uncutting cloth and new pipe leading device used for the method - Google Patents
Replacement method of existing buried pipe uncutting cloth and new pipe leading device used for the methodInfo
- Publication number
- JP3301560B2 JP3301560B2 JP19939393A JP19939393A JP3301560B2 JP 3301560 B2 JP3301560 B2 JP 3301560B2 JP 19939393 A JP19939393 A JP 19939393A JP 19939393 A JP19939393 A JP 19939393A JP 3301560 B2 JP3301560 B2 JP 3301560B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- new
- new pipe
- existing buried
- buried pipe
- 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
- 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 existing buried pipes such as water pipes buried underground with new pipes without cutting, and a new pipe leading apparatus used in 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 of replacing an existing buried pipe with a new pipe without cutting, for example, as described in JP-A-57-120789 and JP-A-59-173492, the existing buried pipe is crushed. There is a known method of burying a new pipe while promoting it.
【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 tapered pipe expanding member are provided, and the guide member is inserted into an existing buried pipe and rotated to provide the pipe expanding member. There is known an apparatus in which an existing buried pipe is crushed by performing a boring operation using a boring projection.
【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。According to the above-mentioned construction method, since the new pipe leading device and the new pipe are simultaneously pushed by the propulsion device, the propulsion force of the propulsion device is equal to the pushing force of the new tube and the pushing force of the pushing device. The new pipe leading device is propelled while crushing the existing buried pipe, so the pushing force of the new pipe guiding device is large, and the pushing force of the new pipe is large because the new pipe is propelled underground. It will be. For this reason, the propulsion force of the propulsion device increases, and the propulsion device becomes large. When the propulsion equipment becomes large, the transmission shaft for propelling the new pipe becomes large,
This is not preferable because the cut area increases 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。Accordingly, an object of the present invention is to provide an existing buried pipe non-cutting and laying replacement method capable of solving the above-mentioned problem and a new pipe leading device used in the method.
【０００７】[0007]
【課題を解決するための手段】第１の発明は、既設埋設
管４を破断・拡径すると共に、後端部に筒状のカバー１
４と中押杆２２を備えた新管先導装置６を発進立坑２か
ら既設埋設管４内に挿入し、 前記発進立坑２に設けた推
進装置５により中押杆２２を押して新管先導装置６を既
設埋設管４内に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・拡径し、 この後に推進装置５
を元にもどすと共に、前記発進立坑２内から新管７を推
進装置５により前記カバー１４内に推進し、 前記推進装
置５を元にもどし、前記中押杆２２を次の中押杆２２を
介して押して新管先導装置６を更に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・拡径し、
この後に推進装置５を元にもどすと共に、前記発進立坑
２内から次の新管７を介して推進装置５により先の新管
７をカバー１４内に推進し、 以後、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であ
る。 第２の発明は、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を備え、 前記本体１０の後端部に、新管７より
も若干大径筒状のガイド１４を取付け、 前記本体１０の
後端部の中央に中押杆２２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で
ある。 第３の発明は、到達立坑３に第１ロープ３３と第
２ロープ３４をそれぞれ巻取りするウインチ３２を設置
し、 既設埋設管４を破断・拡径すると共に、後端部に筒
状のカバー１４を備えた新管先導装置６を、発進立坑２
内から既設埋設管４内に入れると共に、そのカバー１４
内に新管７を設け、 前記第１ロープ３３を新管先導装置
６に連結すると共に、前記第２ロープ３４を新管先導装
置６を通して新管７に連結し、 その第１ロープ３３と第
２ロープ３４を交互に巻取り駆動して、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を破断・拡径し
た後に新管７を所定ストローク推進することを交互に行
うことを特徴とする既設埋設管非開削布設替え工法であ
る。 第４の発明は、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を備え、 この本体１０の後端部に新管７よりも
若干大径筒状のガイド１４を取付け、 前記本体１０は、
前後部に連通した空洞部３６を有する形状である既設埋
設管非開削布設替え工法に用いる新管先導装置である。 Means for Solving the Problems The first invention is an existing burying method.
The pipe 4 is broken and expanded in diameter, and a cylindrical cover 1 is provided at the rear end.
4 and the new pipe leading device 6 provided with the middle push rod 22
Inserted into the existing buried pipe 4 and installed in the starting shaft 2.
By pushing the middle push rod 22 by the advance device 5, the new pipe leading device 6 is already installed.
Pushing a predetermined stroke into the buried pipe 4 and leading the new pipe
The existing buried pipe 4 broken-expanded by 6, the propulsion device 5 after this
And a new pipe 7 is propelled from within the starting shaft 2.
The advance device 5 promoted within the cover 14, the propulsion instrumentation
5 is returned to the original position, and the middle push rod 22 is
To push the new pipe leading device 6 further by a predetermined stroke.
To break and expand the existing buried pipe 4 with the new pipe leading device 6,
After that, the propulsion device 5 is returned to its original position,
2 from the inside by the propulsion device 5 through the next new pipe 7
7 into the cover 14 and thereafter repeat this operation.
Characterized by the fact that the existing buried pipe
You. In a second invention, a guide roller is provided near the front end of the main body 10.
11, the breaking incision roller 12 in the middle part, and the diameter expanding roller near the rear end
The main body 10 is provided with a
Install the slightly larger diameter cylindrical guide 14 is also of the body 10
A middle push rod 22 is attached to the center of the rear end.
This is a new pipe leading device used in the existing buried pipe non-cutting cloth replacement method.
is there. In the third invention, the first rope 33 and the
Winch 32 for winding 2 ropes 34 is installed
Then, the existing buried pipe 4 is broken and expanded, and a tube is
Of the new pipe leading device 6 having the cover 14 in the shape of the starting shaft 2
It is inserted into the existing buried pipe 4 from inside, and its cover 14
A new pipe 7 is provided therein, and the first rope 33 is connected to a new pipe leading device.
6 and the second rope 34 is connected to a new pipe leading
Connected to the new pipe 7 through the
The two ropes 34 are alternately wound and driven to form a new pipe leading device 6.
To break and expand the existing buried pipe 4
After that, the new pipe 7 is alternately propelled by the predetermined stroke.
The method of replacing existing buried pipes without cutting
You. According to a fourth invention, a guide roller is provided near the front end of the main body 10.
11, the breaking incision roller 12 in the middle part, and the diameter expanding roller near the rear end
And the rear end of the main body 10
A slightly large-diameter cylindrical guide 14 is attached, and the main body 10 is
Existing burial with a cavity 36 communicating with the front and rear
This is a new pipe leading device used for the pipe replacement method.
【０００８】[0008]
【作 用】第１の発明によれば、新管先導装置６を中押
杆２２を介して所定ストローク推進して既設埋設管４を
破断・拡径する動作と、そのカバー１４内に新管７を押
し込む動作を、交互に繰り返して行うので、推進装置５
は新管先導装置６と新管７を同時に推進することはな
い。 よって、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２を小
さくでき、開削面積が小さくできるので、非開削布設替
え工法の利点を最大限得ることができる。 第２の発明に
よれば、ガイドローラ１１、破断切開ローラ１２、拡径
ローラ１３を備えているから、既設埋設管４を破断して
拡径することができる。 第３の発明によれば、第１ロー
プ３３で新管先導装置６を所定ストローク推進して既設
埋設管４を破断・拡径する動作と、そのカバー１４内に
第２ロープ３４で新管７を押し込む動作を、交互に繰り
返して行うので、推進装置であるウインチ３２は新管先
導装置６と新管７を同時に推進することはない。 よっ
て、推進装置であるウインチ３２のロープ巻取り力は、
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
大きい方で良く、推進装置であるウインチ３２のロープ
巻取り力が小さく、推進装置であるウインチ３２を小型
にできる。 したがって、発進立坑２を小さくでき、開削
面積が小さくできるので、非開削布設替え工法の利点を
最大限得ることができる。 第４の発明によれば、ガイド
ローラ１１、破断切開ローラ１２、拡径ローラ１３を備
えているから、既設埋設管４を破断して拡径することが
できる。 また、本体１０は、その前後部に連通した空洞
部３６を有するので、第２ロープ３４を空洞部３６を通
して新管７に連結できる。 According to the first aspect of the present invention, the new tube leading device 6 is pushed in the middle.
The existing buried pipe 4 is propelled by a predetermined stroke through the rod 22.
Breaking / expanding operation and pushing the new pipe 7 into the cover 14
The operation of inserting the propulsion device 5 is performed alternately and repeatedly.
Does not promote the new tube guiding device 6 and the new tube 7 at the same time.
No. Therefore, the propulsive force of the propulsion device 5
The greater the force to propel or the force to propel the new tube 7, the better.
Since the thrust of the propulsion device 5 can be made smaller than before,
The traveling device 5 can be reduced in size. Therefore, the starting shaft 2 is small.
Non-cutting cloth replacement because it can be cut and the cut area can be reduced
The advantage of the construction method can be maximized. In the second invention
According to the description, the guide roller 11, the breaking incision roller 12, the diameter expansion
Since it has the roller 13, the existing buried pipe 4 is broken.
The diameter can be enlarged. According to the third invention, the first row
The new pipe leading device 6 is propelled by a predetermined stroke at
The operation of breaking and expanding the buried pipe 4 and the inside of the cover 14
The operation of pushing the new pipe 7 with the second rope 34 is alternately repeated.
The winch 32, which is the propulsion device, is
The guiding device 6 and the new pipe 7 are not simultaneously propelled. Yo
The rope winding force of the winch 32 as a propulsion device is
Of the force to propel the new tube leading device 6 or the force to propel the new tube 7
The larger one is better, the winch 32 rope which is the propulsion device
Winding force is small, and the winch 32 as a propulsion device is small.
Can be. Therefore, the starting shaft 2 can be made smaller and
Since the area can be reduced, the advantage of non-cutting
You can get the maximum. According to the fourth invention, the guide
Roller 11, break incision roller 12, and expanding roller 13
It is possible to break the existing buried pipe 4 and expand its diameter.
it can. The main body 10 has a cavity communicating with its front and rear portions.
Since the second rope 34 has the hollow portion 36,
Can be connected to the new pipe 7.
【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。DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for replacing an existing buried non-cutting cloth according to the present invention will be described with reference to FIG. 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. A propulsion device 5 is provided in the starting shaft 2. The propulsion device 5 propels the new pipe leading device 6 by a predetermined stroke to break the existing buried pipe 4 into a plurality of arc-shaped pieces to expand the diameter. The new pipe leading device 6 is used as a guide to protrude the portion whose diameter has been broken and expanded, and thereafter this operation is repeated to bury the new pipe 7 sequentially. Before the new tube 7 is buried, the inner surface of the existing buried tube 4 may be easily broken by making a groove-like scratch on the inner surface of the existing buried tube 4 or the like.
【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７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。[0010] As shown in FIG.
A guide roller 11 is mounted near the front end of the main body 10, a break incision roller 12 is mounted at an intermediate part, and a diameter-enlarging roller 13 is mounted near the rear end. 10 is a cylindrical body 1 provided with each roller
5, a mounting plate 16 is fixed to the rear end portion of the cover 14, and a flange 17 is fixed to the mounting plate 16 at the opening edge of the front end of the cover 14.
The length of the cover 14 is slightly larger than or equal to the maximum propulsion stroke of the propulsion device 5 and slightly larger than that of the new pipe 7. 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 work of burying a 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 disposed in the starting shaft 2, the main body 10 is inserted into the existing buried pipe 4, the cover 14 contacts the push plate 21, and the middle push rod 2 is inserted.
2 is in contact with the pressing plate 21. In this state, the jack 20 pushes the new pipe leading device 6 through the push plate 21 and the middle push rod 22 to break the existing buried pipe 4 and to push it while expanding the diameter.
As shown in (b), the new tube insertion space 23 is formed underground by the cover 14, and the push plate 21 is returned to the original position. At this time, the 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。Thereafter, the new pipe 7 is put into the starting shaft 2 as shown in FIG. 3 (b) and pushed by the push plate 21 to push the new pipe 7 into the cover 14 as shown in FIG. 3 (c). And push plate 2
1 is returned to the original position, and the next middle push rod 22 is attached between the push plate 21 and the middle push rod 22 as shown in FIG. A predetermined stroke is propelled while breaking the existing buried pipe 4. By repeating this operation, the new pipes 7 are sequentially propelled 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 provided with first and second drums 30 and 31 is installed in a reaching shaft 3 to form a propulsion device 5, and a second propulsion device 5 is wound around the first drum 30. One rope 33 is connected to the new tube leading device 6 and the second drum 3
A first rope 30 and a second drum 31 are connected to the new pipe 7 by passing the second rope 34 wound around
Are alternately wound and driven to alternately propel the new tube leading device 6 and the new tube 7 by a predetermined stroke.
【００１４】この場合の新管先導装置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。In this case, as shown in FIG. 5, the new tube leading device 6 has a hollow portion 36 connected to the front and rear portions by attaching a pipe 35 over the main body 10 and the mounting plate 16.
A structure may be adopted in which the second rope 34 is inserted through and connected to the new pipe 7.
【００１５】[0015]
【発明の効果】請求項１に係る発明によれば、新管先導
装置６を中押杆２２を介して所定ストローク推進して既
設埋設管４を破断・拡径する動作と、そのカバー１４内
に新管７を押し込む動作を、交互に繰り返して行うの
で、推進装置５は新管先導装置６と新管７を同時に推進
することはない。 よって、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２を小さくでき、開削面積が小さくできるので、
非開削布設替え工法の利点を最大限得ることができる。
請求項２に係る発明によれば、ガイドローラ１１、破断
切開ローラ１２、拡径ローラ１３を備えているから、既
設埋設管４を破断して拡径することができる。 請求項３
に係る発明によれば、第１ロープ３３で新管先導装置６
を所定ストローク推進して既設埋設管４を破断・拡径す
る動作と、そのカバー１４内に第２ロープ３４で新管７
を押し込む動作を、交互に繰り返して行うので、推進装
置であるウインチ３２は新管先導装置６と新管７を同時
に推進することはない。 よって、推進装置であるウイン
チ３２のロープ巻取り力は、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で良く、推進装置
であるウインチ３２のロープ巻取り力が小さく、推進装
置であるウインチ３２を小型にできる。 したがって、発
進立坑２を小さくでき、開削面積が小さくできるので、
非開削布設替え工法の利点を最大限得ることができる。
請求項４に係る発明によれば、ガイドローラ１１、破断
切開ローラ１２、拡径ローラ１３を備えているから、既
設埋設管４を破断して拡径することができる。 また、本
体１０は、その前後部に連通した空洞部３６を有するの
で、第２ロープ３４を空洞部３６を通して新管７に連結
できる。 According to the first aspect of the present invention, a new pipe lead
The device 6 is propelled through a predetermined stroke through the middle push rod 22 to
Operation of breaking and expanding the buried pipe 4 and its cover 14
The operation of pushing the new pipe 7 into the
The propulsion device 5 simultaneously propells the new tube leading device 6 and the new tube 7
I will not do it. Therefore, the propulsion force of the propulsion device 5 is
The magnitude of the force to propel the lead device 6 or the force to propel the new pipe 7
The thrust of the propulsion device 5 can be smaller than before.
Therefore, the propulsion device 5 can be reduced in size. Therefore, departure
Since the shaft 2 can be made smaller and the open area can be made smaller,
The advantage of the non-cutting cloth replacement method can be maximized.
According to the invention of claim 2, the guide roller 11, the break
Since the incising roller 12 and the expanding roller 13 are provided,
The buried pipe 4 can be broken to enlarge the diameter. Claim 3
According to the invention according to the first aspect, the new rope leading device 6 is connected to the first rope 33.
By a predetermined stroke to break and expand the existing buried pipe 4
Operation, and the new pipe 7 is inserted into the cover 14 with the second rope 34.
The push-in operation is performed alternately and repeatedly.
The winch 32 is the new tube leading device 6 and the new tube 7 at the same time.
There is no promotion. Therefore, the propulsion device win
The rope winding force of the tip 32 propels the new tube leading device 6 .
The larger the force or the force to propel the new pipe 7, the better.
The wind-up force of the winch 32
The winch 32 can be made smaller. Therefore, departure
Since the shaft 2 can be made smaller and the open area can be made smaller,
The advantage of the non-cutting cloth replacement method can be maximized.
According to the invention according to claim 4, the guide roller 11, the break
Since the incising roller 12 and the expanding roller 13 are provided,
The buried pipe 4 can be broken to enlarge the diameter. Also book
The body 10 has a hollow portion 36 communicating with its front and rear portions.
Then, the second rope 34 is connected to the new pipe 7 through the hollow portion 36.
it can.
【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 the new tube leading device.
【図３】施工手順の説明図である。FIG. 3 is an explanatory view 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 tube 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 tube, 10 ... 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 (56)参考文献 特開 平１−126484（ＪＰ，Ａ) 実開 昭62−163386（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16L 1/024 E21D 9/06 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kenji Okubo 1-2-3 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Takuro Odara 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) Inventor Naoya Nomura 23 Tsutsutsucho, Komatsu-shi, Ishikawa Prefecture Komatsu Ltd.Awazu Plant ( 72) Inventor Hiroshi Shimizu 23 Atsuzu-cho, Komatsu-shi, Ishikawa Pref. Inside the Awazu Plant, Komatsu Ltd. (56) References JP-A-1-126484 (JP, A) Japanese Utility Model Application No. Sho 62-163386 (JP, U) 58) Field surveyed (Int.Cl. 7 , DB name) F16L 1/024 E21D 9/06
Claims (4)
後端部に筒状のカバー１４と中押杆２２を備えた新管先
導装置６を発進立坑２から既設埋設管４内に挿入し、 前記発進立坑２に設けた推進装置５により中押杆２２を
押して新管先導装置６を既設埋設管４内に所定ストロー
ク押し込んで新管先導装置６で既設埋設管４を破断・拡
径し、 この後に推進装置５を元にもどすと共に、前記発進立坑
２内から新管７を推進装置５により前記カバー１４内に
推進し、 前記推進装置５を元にもどし、前記中押杆２２を次の中
押杆２２を介して押して新管先導装置６を更に所定スト
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
・拡径し、 この後に推進装置５を元にもどすと共に、前記発進立坑
２内から次の新管７を介して推進装置５により先の新管
７をカバー１４内に推進し、 以後、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。 Claims: 1. While breaking and expanding the existing buried pipe 4,
New tip with a cylindrical cover 14 and middle push rod 22 at the rear end
The guiding device 6 is inserted from the starting shaft 2 into the existing buried pipe 4, and the propulsion device 5 provided in the starting shaft 2 causes the middle push rod 22 to be moved.
Push the new pipe guide device 6 into the existing buried pipe 4 to a specified straw.
To break and expand the existing buried pipe 4 with the new pipe guiding device 6.
And size, with return on the basis of the propulsion apparatus 5 after this, the starting pit
2 and a new pipe 7 is put into the cover 14 by the propulsion device 5.
The propulsion device 5 is returned to its original state, and the middle push rod 22 is moved to the next position.
Pushing the new pipe leading device 6 through the push rod 22 further
Push the roak and break the existing buried pipe 4 with the new pipe leading device 6
The diameter is enlarged, and after that, the propulsion device 5 is returned to its original position,
2 from the inside by the propulsion device 5 through the next new pipe 7
7 is propelled into the cover 14, and this operation is repeated thereafter.
Non-cutting cloth replacement method.
１、中間部に破断切開ローラ１２、後端寄りに拡径ロー
ラ１３を備え、 前記本体１０の後端部に、新管７よりも若干大径筒状の
ガイド１４を取付け、 前記本体１０の後端部の中央に中押杆２２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 guide roller 1 is provided near the front end of the main body 10.
1. Breaking incision roller 12 in the middle, large diameter row near the rear end
The main body 10 has a cylindrical portion slightly larger in diameter than the new pipe 7 at the rear end thereof.
The guide 14 is attached, and the middle push rod 22 is attached to the center of the rear end of the main body 10.
Used for existing buried pipe non-cutting cloth replacement method
New tube leading device.
プ３４をそれぞれ巻取りするウインチ３２を設置し、 既設埋設管４を破断・拡径すると共に、後端部に筒状の
カバー１４を備えた新管先導装置６を、発進立坑２内か
ら既設埋設管４内に入れると共に、そのカバー１４内に
新管７を設け、 前記第１ロープ３３を新管先導装置６に連結すると共
に、前記第２ロープ３４ を新管先導装置６を通して新管
７に連結し、 その第１ロープ３３と第２ロープ３４を交互に巻取り駆
動して、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を破断・拡径した後に新管７を所定ストローク
推進することを交互に行うことを特徴とする既設埋設管
非開削布設替え工法。 3. The arrival shaft 3 has a first rope 33 and a second row.
A winch 32 for winding each of the loops 34 is installed, the existing buried pipe 4 is broken and expanded in diameter, and a tubular end is formed at the rear end.
The new pipe leading device 6 with the cover 14 is inserted into the starting shaft 2
Into the existing buried pipe 4 and into its cover 14
When a new pipe 7 is provided and the first rope 33 is connected to the new pipe leading device 6,
Then, the second rope 34 is passed through a new pipe guiding device 6 to form a new pipe.
7 and the first rope 33 and the second rope 34 are wound up alternately.
To move the new pipe leading device 6 by a predetermined stroke.
After breaking the buried pipe 4 and expanding the diameter, the new pipe 7 is moved to a predetermined stroke.
Existing buried pipe characterized by alternating propulsion
Non-cutting cloth replacement method.
１、中間部に破断切開ローラ１２、後端寄りに拡径ロー
ラ１３を備え、 この本体１０の後端部に新管７よりも若干大径筒状のガ
イド１４を取付け、 前記本体１０は、前後部に連通した空洞部３６を有する
形状であ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。 4. A guide roller 1 near the front end of the main body 10.
1. Breaking incision roller 12 in the middle, large diameter row near the rear end
The main body 10 is provided with a tube 13 having a slightly larger diameter than the new pipe 7 at the rear end.
The main body 10 has a cavity 36 communicating with the front and rear parts.
New pipes used for the replacement of existing buried pipes without opening and cutting
Leading device.
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 JPH0755057A (en) | 1995-03-03 |
| JP3301560B2 true 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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5482404A (en) * | 1993-07-27 | 1996-01-09 | Tenbusch, Ii; Albert A. | Underground pipe replacement technique |
| JP6025200B2 (en) * | 2013-01-23 | 2016-11-16 | 東邦瓦斯株式会社 | Tube renewal equipment |
-
1993
- 1993-08-11 JP JP19939393A patent/JP3301560B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0755057A (en) | 1995-03-03 |
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