JPS6165995A - Method of inserting city-gas conduit - Google Patents
Method of inserting city-gas conduitInfo
- Publication number
- JPS6165995A JPS6165995A JP59188726A JP18872684A JPS6165995A JP S6165995 A JPS6165995 A JP S6165995A JP 59188726 A JP59188726 A JP 59188726A JP 18872684 A JP18872684 A JP 18872684A JP S6165995 A JPS6165995 A JP S6165995A
- Authority
- JP
- Japan
- Prior art keywords
- branch pipe
- pipe
- main pipe
- bag
- upstream
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/18—Appliances for use in repairing pipes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Electric Cable Installation (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、都市ガス導管において、埋設された又は構造
物で隠された主管に、圧送式牽引具によって通線する方
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method of running a city gas pipeline through a main pipe that is buried or hidden behind a structure using a pressure-feed type traction tool.
従来、主管のうち通線対象域の両側部分を掘出して開口
させ、通線に連結した牽引具を一方の開口から他方の開
口に圧送するか、あるいは、通線対象域の一側部分だけ
を掘出して開口させ、他側部分に接続した分岐管の地上
部分から主管に形成した開口に牽引具を圧送していた(
文献を示すことができない)
[発明が解決しようとする問題点]
しかし、いずれの従来方法においても、主管の掘出し及
び開口に多くの作業時間を必要とし、掘削作業及び掘出
し土砂の処理に多大の経費を必要とし、作業性及び工費
面のいずれにおいても改良の余地があった。Conventionally, both sides of the main pipe were excavated and opened, and the traction tool connected to the wire was fed from one opening to the other, or only one side of the main pipe was opened. The towing tool was then forced into the opening formed in the main pipe from the above-ground part of the branch pipe connected to the other side by digging it out and opening it.
[Problems to be solved by the invention] However, in any of the conventional methods, a lot of work time is required to excavate and open the main pipe, and a large amount of time is required for excavation work and processing of the excavated earth and sand. It was expensive, and there was room for improvement in terms of both workability and cost.
本発明の目的は、極めて合理的な手段でもって、埋設又
は隠蔽された主管に対する通線を、主管に対する掘出し
や開口形成を全く必要とすること無く行えるようにする
点にある。An object of the present invention is to enable wiring to a buried or hidden main pipe by extremely rational means without requiring any digging or opening in the main pipe.
〔問題を解決するための手段]
本発明の特徴手段は、地上から膨張収縮操作自在で引出
し自在に構成したバッグを、主管内に少くとも1本の分
岐管の地上部分から送って膨張させ、その膨張したバッ
グで前記主管を遮断し、前記主管のうち前記バッグよシ
も上流側又は下流側の部分に接続した上流側分岐管及び
下流側分岐管の一方の地上部分から、通線に連結した牽
引具を挿入し、前記上流側及び下流側分岐管のうち前記
牽引具が挿入されたものに他方から加圧部市ガスを供給
しながら、前記上流側及び下流側分岐管の一方から他方
に前記主管を通って、前記牽引具を圧送することにあり
、その作用効果は次の通シである。[Means for solving the problem] The characteristic means of the present invention is to send a bag configured to be able to be inflated and deflated from the ground and to be freely drawn out from the ground to be inflated by sending it into the main pipe from the ground part of at least one branch pipe, The inflated bag blocks off the main pipe, and connects the bag to the wire from the ground part of one of the upstream branch pipe and the downstream branch pipe, which are connected to the upstream or downstream part of the main pipe. Then, while supplying pressurized city gas from the other of the upstream and downstream branch pipes into which the traction tool was inserted, from one of the upstream and downstream branch pipes to the other. The main purpose is to force-feed the towing tool through the main pipe, and its effects are as follows.
つまシ、分岐管の地上部分から入れた牽引具は、他方の
分岐管から圧送される都市ガスによって主管に送られ、
主管内において、吸気側の分岐管に向かって流動する都
市ガスによって、その分岐管の接続箇所に送られ、その
接続箇所において、一方の分岐管から他方の分岐管への
都市ガス供給に伴って主管から吸気側の分岐管に流入す
る都市ガスの作用によって吸気側の分岐管に送シ込まれ
、吸気側の分岐管内において吸引流動される都市ガスに
より地上部分まで送られるのである。そして、通線が、
上流側分岐管の地上部分から下流側分岐管の地上部分に
わたって、上流側分岐管、主管及び下流側分岐管に通さ
れるのであり、その後、一方の分岐管から他方の分岐管
に都市ガスを加圧供給する設備を取外す等して、通線の
一端側に適当な装置を連結し、通線の他端側を引張って
、装置を分岐管から主管内に導入し、その導入した装置
によって、かつ、装置を通線により主管内で移動させて
、主管に対するクリーニング、ライニング材塗布、内面
検査、その他適当な処置を施せるのである。The traction tool inserted from the ground part of the branch pipe is sent to the main pipe by the city gas that is pumped from the other branch pipe.
In the main pipe, the city gas flowing towards the branch pipe on the intake side is sent to the connection point of that branch pipe, and at the connection point, as city gas is supplied from one branch pipe to the other branch pipe. The action of city gas flowing from the main pipe into the branch pipe on the intake side is sent into the branch pipe on the intake side, and the city gas sucked and flowed in the branch pipe on the intake side is sent to the above-ground area. And the line is
City gas is passed from the above-ground part of the upstream branch pipe to the above-ground part of the downstream branch pipe to the upstream branch pipe, main pipe, and downstream branch pipe, and then from one branch pipe to the other branch pipe. Remove the pressurized supply equipment, connect an appropriate device to one end of the wire, pull the other end of the wire, introduce the device from the branch pipe into the main pipe, and the introduced device In addition, the device can be moved within the main pipe through a wire to perform cleaning, application of lining material, inner surface inspection, and other appropriate treatments on the main pipe.
その上、分岐管の地上部分から導入したバッグにより主
管を遮断しであるから、主管から吸気側の分岐管への牽
引具の送込みを、例えば主管による都市ガス供給を継続
する場合に比して、一方の分岐管から他方の分岐管への
ガス供給量を大巾に少くしながら円滑確実に行え、また
、主管に所定の処置を施した後、バッグを収縮させて分
岐管から取出して、都市ガス供給を再開できる。Furthermore, since the main pipe is shut off by a bag introduced from the above-ground part of the branch pipe, the feeding of the traction tool from the main pipe to the branch pipe on the intake side is much easier than, for example, when city gas is continued to be supplied through the main pipe. This allows the gas supply from one branch pipe to the other to be carried out smoothly and reliably while significantly reducing the amount of gas supplied from one branch pipe to the other.In addition, after performing the prescribed treatment on the main pipe, the bag can be deflated and removed from the branch pipe. , city gas supply can be resumed.
その結果、バッグによる主管遮断、主管に対する通線、
通線による処置、及び、バッグの取出しの全てを、分岐
管の地上部分を有効利用して、主管の掘出しや開口形成
を全く必要とすること無く行え、工事を容易迅速にかつ
経費少く行えるようになった。As a result, the main pipe was blocked by the bag, the wire was connected to the main pipe,
All of the wiring work and bag removal can be done by effectively utilizing the above-ground part of the branch pipe, without the need to dig out the main pipe or form any openings, making the work easier, faster, and less costly. Became.
また、一方の分岐管から他方の分岐管に加圧部市ガスを
供給するだめの設備を、小型で吐出圧がかなシ低いもの
で済ますことができて、その設備の運搬等の取扱いを容
易にできると共に、その設備に要する動力費を少くでき
、この面からも工事の簡略化及び経費節減を一層十分に
図れるようになった。In addition, the equipment for supplying pressurized city gas from one branch pipe to the other can be small and have a relatively low discharge pressure, making it easy to transport and handle the equipment. At the same time, the power cost required for the equipment can be reduced, and from this aspect as well, construction work can be simplified and costs can be further reduced.
次に実施例を示す。 Next, examples will be shown.
第1図に示すように、地中の都市ガス供給用主管(1)
の一部(1m)に対して、クリーニング、ライニング材
塗布、内部検査等のための適当な処置を施すに先立って
、処置対象部分(1a)の上流側に接続された1本の分
岐管(2)と、下流側に接続された2本の分岐管(3)
l (4)の地上部分(21LL(8a)+(4a)
に開口を形成する。つまり、例えば、分岐管(2) I
(3) * (4)としてのメーター立管において顧
客用ガスメーター及びメーターコックを外す等して、開
口を形成する。As shown in Figure 1, underground city gas supply main pipe (1)
Before performing appropriate treatments such as cleaning, applying lining material, and internal inspection on a portion (1 m) of 2) and two branch pipes connected to the downstream side (3)
l Above ground part of (4) (21LL (8a) + (4a)
An opening is formed in the opening. That is, for example, branch pipe (2) I
(3) *In the meter standpipe as in (4), remove the customer gas meter and meter cock to form an opening.
次に、第2図に示すように、ホース(5)に接続した加
圧流体供給装置(6)により膨張操作自在で、ホース(
5)からの流体排出により収縮操作自在で、かつ、ホー
ス(5ンによシ引出し自在に構成したバッグ(7)を、
最下流側分岐管(4)の地上部分(4a)から主管(1
)内に、送風機(8)付パイプ(9)により下流側分岐
管(3)から供給される加圧部市ガスにょって圧送し、
装M(6)からの加圧流体で膨張させて、膨張したバッ
グ(7)で主管(1)を遮断する。Next, as shown in Figure 2, the hose (5) can be freely inflated by the pressurized fluid supply device (6) connected to the hose (5)
A bag (7) that can be freely deflated by discharging fluid from the bag (7) and can be freely pulled out through a hose (5).
From the above-ground part (4a) of the most downstream branch pipe (4) to the main pipe (1
), the pressurized part is fed under pressure by city gas supplied from the downstream branch pipe (3) by a pipe (9) with a blower (8),
The bag is inflated with pressurized fluid from the bag M (6), and the inflated bag (7) blocks the main pipe (1).
次に、第8図に示すように、例えばパラシュート状や吹
流し型等の適当な圧送用牽引具αqを、それに通線(ロ
)を連結した状態で、上流側分岐管(2)の地上部分(
2a)から挿入すると共に、下流側分岐管(3)から上
流側分岐管(2)に加圧部市ガスを供給する送風機(8
)付パイプ(9)を接続する。Next, as shown in Fig. 8, a suitable pressure-feeding towing device αq, such as a parachute type or a windsock type, is connected to the wire (b), and the above-ground part of the upstream branch pipe (2) is connected to it. (
A blower (8) is inserted from 2a) and supplies pressurized city gas from the downstream branch pipe (3) to the upstream branch pipe (2).
) Connect the pipe (9).
次に、送風機(8)によって加圧部市ガスを上流側分岐
管(2)内に供給しながら、牽引具QOを上流側分岐管
(2)、主管(1)、下流側分岐管(3)の順に圧送し
、第4図に示すように、通線(6)を、上流側及ヒ下流
側分岐管(2) 、(3) Oj’lh上m 分(2m
) 、(2b)にわたって、それら両分枝管(2) 、
(3)と主管(1)に通す。Next, while supplying pressurized city gas into the upstream branch pipe (2) by the blower (8), the traction tool QO is moved to the upstream branch pipe (2), the main pipe (1), and the downstream branch pipe (3). ), and as shown in Fig. 4, the line (6) is connected to the upstream branch pipe (2), (3) Oj'lh upper m (2 m).
) , (2b), both branch canals (2) ,
(3) and main pipe (1).
また、通線完了後は、パイプ(9)を分岐管(2)。Also, after completing the wiring, connect the pipe (9) to the branch pipe (2).
(3)から外し、通線(ロ)による牽引で分岐管(2)
又は(3)の地上部分(2&)又は(3a)から主管(
1)内に適宜装置を導入する等によって、主管(1)及
び分岐管(2) 、 (3)に対する必要な処置を施す
。Remove it from (3) and pull it with the wire (b) to the branch pipe (2).
Or from the aboveground part (2&) or (3a) of (3) to the main pipe (
1) Take necessary measures for the main pipe (1) and branch pipes (2) and (3) by introducing appropriate equipment into the main pipe (1) and branch pipes (2) and (3).
また、処jFIを1後は、通線(I3)により糾n・へ
゛全引出すと共に、バッグ(7)を収縮させてホース(
5)により引出し、3本の分岐管+2)I (3) +
(4)を復元接続し、都市ガス供給を再開する。In addition, after 1 stage of processing, pull out the hose (I3) completely, deflate the bag (7), and connect the hose (
5), and three branch pipes +2) I (3) +
(4) will be restored and the city gas supply will be resumed.
E別実施例] 次に別の実施例を説明する。Examples by E] Next, another embodiment will be described.
バッグ(7)、牽引具(10及び通線(11)は、材質
や形状、その他において適当に選択でき、まだ、バッグ
(7)や革引具叫や通線αυを分岐管(2J 、 (3
) 、 (4)に対して挿入したり取出したりするため
に、適当な治具を分岐管(2) + (3) 、 (4
)に接続して利用すればよい。The bag (7), the traction tool (10), and the wire (11) can be selected appropriately in terms of material, shape, and other aspects. 3
), (4), use an appropriate jig to insert or remove the branch pipes (2) + (3), (4).
) to use it.
バッグ(7)を挿脱する分岐管(4)は、上流側分岐管
(2)よりも上流側のものでもよく、通線のための2本
の分岐管(2) 、 (3)の上流側及び下流側のも
′の両方であってもよく、通線のための上流側及び下流
側分岐管<2) + (3)の一方又は両方が兼用され
てもよく、要するに、1個又は複数個のバッグ(7)を
、通線に支障の無い位置で膨張させればよい。The branch pipe (4) for inserting and removing the bag (7) may be upstream of the upstream branch pipe (2), and may be upstream of the two branch pipes (2) and (3) for wire passage. side and downstream side
', or one or both of the upstream and downstream branch pipes <2) + (3) for wire passage may be used. In short, one or more bags (7 ) can be expanded at a position that does not impede wiring.
バッグ(7)を圧送するに、各種の送風設備が利用でき
、また、可撓性の押込具でバッグ(7)を送ってもよい
。バッグ(7)を膨張するに、各種のガス用又は液相供
給設備を利用でき、バッグ(7)を引出すに′、そのた
めの索具をバッグ(7)に連結してもよい。Various types of air blowing equipment can be used to force feed the bag (7), and the bag (7) may also be fed using a flexible pushing tool. Various gaseous or liquid phase supply facilities may be used to inflate the bag (7) and rigging may be connected to the bag (7) for withdrawing the bag (7).
牽引具αOf、下流側分岐管(3)から挿入してもよく
、また、牽引具(10の圧送時に、下流側及び上流側分
岐管(2) I (3)の一方から他方に加圧部市ガス
を供給するに、各種の送風設備が利用できる。The traction tool αOf may be inserted from the downstream branch pipe (3), and when the traction tool (10) is pumped, the pressure part is inserted from one of the downstream and upstream branch pipes (2) I (3) to the other. Various types of ventilation equipment can be used to supply city gas.
主管(1)は構造物に隠されたものでもよく、その場合
において、分岐管(2) l (3) t (4)の外
部露出部を地上部分(2m)、(3m)+(4a猪称す
る。The main pipe (1) may be hidden in the structure, and in that case, the external exposed part of the branch pipe (2) l (3) t (4) is connected to the above ground part (2 m), (3 m) + (4a boar). to be called.
第1図ないし第4図は、本発明方法の手順を例示する概
念図である。1 to 4 are conceptual diagrams illustrating the procedure of the method of the present invention.
Claims (1)
グ(7)を、主管(1)内に少くとも1本の分岐管(4
)の地上部分(4a)から送つて膨張させ、その膨張し
たバッグ(7)で前記主管(1)を遮断し、前記主管(
1)のうち前記バッグ(7)よりも上流側又は下流側の
部分に接続した上流側分岐管(2)及び下流側分岐管(
3)の一方の地上部分(2a)又は(3a)から、通線
(11)に連結した牽引具(10)を挿入し、前記上流
側及び下流側分岐管(2),(3)のうち前記牽引具(
10)が挿入されたものに他方から加圧都市ガスを供給
しながら、前記上流側及び下流側分岐管(2),(3)
の一方から他方に前記主管(1)を通つて、前記牽引具
(10)を圧送する都市ガス導管用通線方法。A bag (7) configured to be able to be inflated and deflated and withdrawn from the ground is installed in at least one branch pipe (4) within the main pipe (1).
) from the above-ground part (4a) and inflate it, the inflated bag (7) blocks the main pipe (1), and the main pipe (
1), an upstream branch pipe (2) and a downstream branch pipe (2) connected to the upstream or downstream part of the bag (7).
Insert the traction device (10) connected to the line (11) from one of the above-ground parts (2a) or (3a) of Said traction device (
10) is inserted, while supplying pressurized city gas from the other side to the upstream and downstream branch pipes (2), (3).
A method for running a city gas pipeline through the main pipe (1) from one side to the other, in which the pulling tool (10) is force-fed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59188726A JPS6165995A (en) | 1984-09-08 | 1984-09-08 | Method of inserting city-gas conduit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59188726A JPS6165995A (en) | 1984-09-08 | 1984-09-08 | Method of inserting city-gas conduit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6165995A true JPS6165995A (en) | 1986-04-04 |
JPH0440598B2 JPH0440598B2 (en) | 1992-07-03 |
Family
ID=16228702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59188726A Granted JPS6165995A (en) | 1984-09-08 | 1984-09-08 | Method of inserting city-gas conduit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6165995A (en) |
-
1984
- 1984-09-08 JP JP59188726A patent/JPS6165995A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0440598B2 (en) | 1992-07-03 |
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