JPH047240Y2 - - Google Patents
Info
- Publication number
- JPH047240Y2 JPH047240Y2 JP1984092339U JP9233984U JPH047240Y2 JP H047240 Y2 JPH047240 Y2 JP H047240Y2 JP 1984092339 U JP1984092339 U JP 1984092339U JP 9233984 U JP9233984 U JP 9233984U JP H047240 Y2 JPH047240 Y2 JP H047240Y2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- pipe
- injection material
- cast iron
- stop device
- 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
Links
- 229910001018 Cast iron Inorganic materials 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 25
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 239000000945 filler Substances 0.000 claims description 15
- 238000000605 extraction Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 13
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000012489 doughnuts Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Pipe Accessories (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、PIP工法（Pipe in Pipe工法）に用
いられる充填材の止水装置に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a water stop device for a filler used in the PIP method (Pipe in Pipe method).
一般に、PIP工法とは、例えば、スクリユーオ
ーガーにより穿孔し、穿孔終了後オーガーを引上
げながら、オーガー先端よりモルタルあるいは豆
砂利コンクリートを注入し、杭を形成する工法を
も指すが、本考案におけるPIP工法とは、最近、
一般の既設の上水道管が老巧化しこれを補修する
際に開発された工法で、例えば、上水道の既設の
大口径の外層管（一般には鋳鉄管が使用されてい
る。）に、この管より小口径の新設管（内挿管で
鋼管や鋳鉄管が用いられる）を布設する工法であ
り、上水道管を新布設するには多大の費用が嵩む
が、これを避ける工法として歓迎されている。か
かるPIP工法を更に詳しくいえば、新設管として
は鋼管および鋳鉄管が併用される場合、例えばエ
ヤーモルタル等の充填材が既設管と新設管との間
隙（例えば40〜70mm）に防蝕のため充填される。
かかる場合、新設管としての鋼管使用の部分だけ
に充填材が充填される。したがつて、鋼管使用の
部分に充填材を充填すれば、この鋼管と次に挿入
される鋳鉄管の接合部分には止水装置を設ける必
要がある。
In general, the PIP method refers to a method in which, for example, a screw auger is used to drill a hole, and after the hole is finished, the auger is pulled up and mortar or pea gravel concrete is injected from the tip of the auger to form a pile. The construction method has recently been
This method was developed to repair existing general water supply pipes that had become obsolete. This is a method of laying new small-diameter pipes (steel pipes or cast iron pipes are used with internal pipes), and is welcomed as a construction method that avoids the high cost of laying new water pipes. To explain this PIP method in more detail, when steel pipes and cast iron pipes are used together as new pipes, a filler such as air mortar is filled into the gap (for example 40 to 70 mm) between the existing pipe and the new pipe to prevent corrosion. be done.
In such a case, the filler is filled only in the part where the steel pipe will be used as the new pipe. Therefore, if a filler is filled in a portion where a steel pipe is used, a water stop device must be provided at the joint between the steel pipe and the cast iron pipe to be inserted next.
ところで、既設の水道管である外層管は老巧化
して円形でない各種の形状に変形しているが、そ
れに拘わらず、従来のPIP工法に用いる止水装置
は、この外層管と内挿管との間に形成されたドー
ナツ状間隙を一定形状とみなした止水装置が用い
られ、その結果、充填材が必要以上に使われた
り、充填作業が長びいたりし、その信頼性が低
い、という問題があつた。 By the way, the existing water pipes, the outer layer pipes, have aged and deformed into various non-circular shapes, but regardless of this, the water stop device used in the conventional PIP method is designed to connect the outer layer pipes and the inner pipes. Water stop devices are used that treat the donut-shaped gap formed in between as a fixed shape, and as a result, the filling material is used more than necessary, the filling process takes a long time, and its reliability is low. It was hot.
本考案は、かかる従来の不都合を解消しようと
して案出されたもので、その要旨とするところ
は、既設の大口径上水道管１と、新しく内嵌し、
かつ、下方に足１１が突設された短尺の鋼管製内
挿管３とで形成された間隙に、腐蝕防止充填材を
充填し、該腐蝕防止充填材の流出止めをする止水
装置において、前記間隙にセツトする膨張可能の
チユーブ７に注入材供給細管８とエヤー抜出細管
９とを設け、該注入材供給細管８より経時的にゴ
ム状に硬化する注入材を注入可能とすると共に、
前記注入材を充満させて膨張したチユーブ７を、
前記内挿管３と接続する新設鋳鉄管４の接続側開
口端により保持し、該新設鋳鉄管４と共に、前記
水道管１の内周を摺接してセツトすることを特徴
とするPIP工法に用いられる充填材止水装置にあ
る。
The present invention was devised in an attempt to eliminate such conventional inconveniences, and its gist is that the existing large-diameter water pipe 1 is fitted with a new one,
Further, in the water stop device for filling the gap formed by the short steel pipe inner tube 3 with the legs 11 protruding from the bottom and preventing the corrosion-preventing filler from flowing out, An inflatable tube 7 set in the gap is provided with an injection material supply capillary 8 and an air extraction capillary 9, so that an injection material that hardens into a rubber-like state over time can be injected through the injection material supply capillary 8.
The tube 7 filled with the injection material and expanded,
It is used in the PIP method, which is characterized in that it is held by the open end on the connection side of a newly installed cast iron pipe 4 that connects with the inner tube 3, and is set by slidingly contacting the inner periphery of the water pipe 1 together with the newly installed cast iron pipe 4. It is in the filling material water stop device.
以下、本考案の構成を添付図面に示す実施例に
もとづき詳細に説明する。
Hereinafter, the structure of the present invention will be described in detail based on embodiments shown in the accompanying drawings.
第１図は本考案の実施例である止水装置の要部
断面図、第２図は第１図に用いるチユーブの断面
図、第３図は第１図の止水装置を用いて施工する
PIP工法概略図である。 Figure 1 is a sectional view of the main parts of a water stop device that is an embodiment of the present invention, Figure 2 is a sectional view of the tube used in Figure 1, and Figure 3 is a construction using the water stop device shown in Figure 1.
This is a schematic diagram of the PIP method.
先ず、第３図により本実施例を用いるPIP工法
を概説する。１は上水道に用いられた大口径の既
設鋳鉄管で、その径が略800mm〜1500mmになつて
いる。この鋳鉄管１が埋設された箇所に、発進立
坑２を穿孔し、この発進立坑２より新設用の短尺
の鋼管３を既設鋳鉄管１に逐次内嵌して挿入す
る。これらの鋼管３にはその外周に滑車状の足１
１を突設しているので、発進立坑２において機械
的にこれらの鋼管３を逐次連続して押込めば、既
設鋳鉄管１の内周を滑りながら到達立坑（図示せ
ず）まで搬入できる。そして、これらの鋼管３は
隣接したもの同志を溶接接合する。次に、新しく
挿入する鋳鉄管４を、すでに挿入している鋼管３
の端部と接合するには、この新しく挿入する鋳鉄
管４の受口５に鋳鉄管接続用鋼管６を予め挿入セ
ツトして、この鋳鉄管４を発進立坑２より挿入す
る。この受口５の内周面と、受口５に挿入する鋳
鉄管接続用鋼管６の外周との間には、周知のメカ
ニカル継手を介在させている。例えば、ストツパ
用のセツトボルト、ゴム輪、ゴム輪を軸方向より
押圧するボルト等から構成されるメカニカルUF
形を採用すれば、止水は勿論、抜けだしも防止で
きる。 First, the PIP method using this embodiment will be outlined with reference to FIG. 1 is an existing large-diameter cast iron pipe used for waterworks, with a diameter of approximately 800 mm to 1,500 mm. A starting shaft 2 is bored at the location where the cast iron pipe 1 is buried, and short steel pipes 3 for new installation are successively inserted into the existing cast iron pipe 1 through the starting shaft 2. These steel pipes 3 have pulley-like legs 1 on their outer peripheries.
1 protruding from the pipes 1, by mechanically pushing these steel pipes 3 one after another in the starting shaft 2, they can be carried to the destination shaft (not shown) while sliding on the inner periphery of the existing cast iron pipe 1. Adjacent steel pipes 3 are welded together. Next, insert the newly inserted cast iron pipe 4 into the already inserted steel pipe 3.
To join the end of the new cast iron pipe 4, a cast iron pipe connecting steel pipe 6 is inserted and set in advance into the socket 5 of the newly inserted cast iron pipe 4, and the cast iron pipe 4 is inserted from the starting shaft 2. A well-known mechanical joint is interposed between the inner peripheral surface of the socket 5 and the outer periphery of the cast iron pipe connecting steel pipe 6 inserted into the socket 5. For example, a mechanical UF consisting of a set bolt for a stopper, a rubber ring, a bolt that presses the rubber ring from the axial direction, etc.
By adopting the shape, you can not only stop water but also prevent it from leaking out.
ここにおいて、第１図および第２図に示すごと
く、新しく挿入した鋳鉄管４の受口５の端部で、
かつ、鋳鉄管接続用鋼管６の外周一側に、ゴムチ
ユーブ７を介装する。このゴムチユーブ７はドー
ナツ状に形成され、軸方向に注入材供給細管８お
よびエヤー抜出細管９を突設している。これらの
細管８，９はいずれも細いゴム管で構成され、容
易に緊締できるようにしている。したがつて、こ
の新しく挿入した鋳鉄管４を、すでに挿入してい
る鋼管３の手前500mmのところ迄搬入し、次いで、
前記ゴムチユーブを受口５等の所にセツトし、注
入材供給細管８を適宜の注入器（図示せず）に接
続して、注入器によつて１Kg／cm2の圧力で注入材
（詳細は後述）を注入し、上部に設けたエヤー抜
出細管９より若干の注入材が漏出した時点で、す
なわち、エヤーを完全に抜いた時点で、エヤー抜
出細管９を緊締する。更に注入材を注入するとゴ
ムチユーブ７は膨張し、既設鋳鉄管１の内周と新
設鋳鉄管４等外周との間隙は完全に密閉される。
なお、注入材を注入せず、エアーのみを注入した
場合は、充填材を充填する迄にエアーが自然に漏
洩し、止水機能を果たさない。 Here, as shown in FIGS. 1 and 2, at the end of the socket 5 of the newly inserted cast iron pipe 4,
Moreover, a rubber tube 7 is interposed on one side of the outer periphery of the steel pipe 6 for connecting cast iron pipes. This rubber tube 7 is formed into a donut shape, and has an injection material supply capillary tube 8 and an air extraction capillary tube 9 protruding in the axial direction. Both of these thin tubes 8 and 9 are made of thin rubber tubes so that they can be easily tightened. Therefore, this newly inserted cast iron pipe 4 was carried to a point 500 mm before the already inserted steel pipe 3, and then,
Set the rubber tube at the socket 5, etc., connect the injection material supply capillary tube 8 to an appropriate syringe (not shown), and inject the injection material (details are provided) at a pressure of 1 kg/cm 2 with the syringe. (described later) is injected, and when some of the injection material leaks out of the air extraction thin tube 9 provided at the top, that is, when the air has been completely extracted, the air extraction thin tube 9 is tightened. When the injection material is further injected, the rubber tube 7 expands, and the gap between the inner periphery of the existing cast iron pipe 1 and the outer periphery of the new cast iron pipe 4, etc. is completely sealed.
Note that if only air is injected without injecting the filler, the air will naturally leak until the filler is filled, and the water stop function will not be achieved.
次いで、新設鋳鉄管４を押し込むと、膨張した
ゴムチユーブ７は既設鋳鉄管１内周をスライドす
ると共に、新設接続管４の受口５に接合された鋳
鉄管接続用鋼管６もスライドし、鋳鉄管接続用鋼
管６がすでに挿入されている鋼管３に当接する。
そして、この鋼管３と鋳鉄管接続用鋼管６とを溶
接接合する。次に、充填材注入口１０よりエヤー
モルタルを、ドーナツ状間隙に２Kg／cm2の圧力で
充填し、これにより新設管の固定と防蝕を行う。 Next, when the new cast iron pipe 4 is pushed in, the expanded rubber tube 7 slides on the inner periphery of the existing cast iron pipe 1, and the cast iron pipe connecting steel pipe 6 joined to the socket 5 of the new connecting pipe 4 also slides. The connecting steel pipe 6 comes into contact with the already inserted steel pipe 3.
Then, this steel pipe 3 and the cast iron pipe connecting steel pipe 6 are welded together. Next, the donut-shaped gap is filled with air mortar from the filler injection port 10 at a pressure of 2 kg/cm 2 , thereby fixing the newly installed pipe and preventing corrosion.
なお、新設鋳鉄管４，４同志の接合は、ボルト
接合であるため発進立坑２内で接合する。 Note that the newly installed cast iron pipes 4, 4 are joined together within the starting shaft 2 because they are bolted together.
さて、前記注入材は、エヤーモルタル充填材の
流出を阻止すればよく、しかも注入時は液状のも
ので、経時的にゴム状に硬化するものであればい
ずれでもよい。例えば、吸水率が小さく耐水性の
優れた特殊コールタールとウレタン樹脂を化学的
に結合させた弾性シーリング材（日鉄化学(株)KN
コートTU）や、特殊合成樹脂に瀝青質および適
当充填材を加えた常温型二液性塗料（兎田化学(株)
ビチユールNo.200）などが適当である。 The injection material may be any material as long as it prevents the air mortar filler from flowing out, is liquid at the time of injection, and hardens into a rubbery state over time. For example, an elastic sealing material (Nippon Steel Chemical Co., Ltd.'s KN
Coat TU), room-temperature two-component paint made of special synthetic resin with bituminous material and appropriate fillers (Usada Chemical Co., Ltd.)
Vitiyur No. 200) etc. are suitable.
本考案によれば、
既設の、つまり埋設されている上水道管１
と、それに内嵌する鋼管３との間隙に、腐蝕防
止充填材を充填するが、同様に内嵌する鋳鉄管
４との間隙には腐蝕防止充填材を充填する必要
がないので、この鋼管３と新設鋳鉄管４との接
続箇所には腐蝕防止充填材の止水装置を必要と
する。この止水装置を、硬化用注入材を予め注
入して膨張したチユーブ７で構成したので、内
挿管３を支持することなく、上水道管１内周全
面に亘り密閉され、しかも鋼管３との間隙にセ
ツトされることが推認できることから、止水装
置に信頼性が得られる。
According to the present invention, existing or buried water supply pipes 1
A corrosion-preventing filler is filled in the gap between the steel pipe 3 and the steel pipe 3 that fits therein, but there is no need to fill the gap with the cast iron pipe 4 that also fits therein, so this steel pipe 3 A water stop device made of anti-corrosion filler is required at the connection point between the pipe and the newly installed cast iron pipe 4. Since this water stop device is composed of the tube 7 that has been expanded by injecting a hardening injection material in advance, it is sealed over the entire inner circumference of the water supply pipe 1 without supporting the inner tube 3, and the gap between it and the steel pipe 3 is sealed. Since it can be assumed that the water is set to
しかも、セツト後、チユーブが経時的にしぼ
むことがないので、この信頼性に更に資するこ
とができる。 Moreover, since the tube does not shrink over time after being set, this reliability can be further improved.
硬化用注入材の充満で膨張したチユーブ７
を、新設鋳鉄管４の接続側開口端で保持して、
上水道管１の内周を新設鋳鉄管４と共に摺接さ
せて、鋼管製内挿管３との間隙にセツトするの
で、摺接してもチユーブ７がパンクするおそれ
はなく、しかも、セツト後のチユーブ７の抜け
止めができ、ひいてはチユーブ７の正しいセツ
ト姿勢が維持される。 Tube 7 expanded due to filling with hardening injection material
is held at the open end of the connection side of the newly installed cast iron pipe 4,
Since the inner periphery of the water supply pipe 1 is brought into sliding contact with the newly installed cast iron pipe 4 and set in the gap with the steel pipe inner tube 3, there is no risk of the tube 7 being punctured even if the pipe 7 is brought into sliding contact. This prevents the tube from coming off, and in turn maintains the correct set posture of the tube 7.
したがつて、止水装置に信頼性が得られる。 Therefore, reliability of the water stop device can be obtained.
注入材の充満で膨張したチユーブ７を、新設
鋳鉄管４の接続側開口端で保持して、上水道管
１の内周を新設鋳鉄管４と共にスライドして鋼
管製内挿管３との間隙にセツトするので、チユ
ーブ７を膨張させる作業が視認でき、したがつ
て、チユーブ７をセツトするときの試行錯誤的
なやり直しがなく、狭い上水道管１内での作業
に好都合となる。 The tube 7 expanded due to filling with the injection material is held at the open end on the connection side of the newly installed cast iron pipe 4, and the inner circumference of the water supply pipe 1 is slid together with the newly installed cast iron pipe 4 and set in the gap with the steel pipe inner tube 3. Therefore, the work of inflating the tube 7 can be visually confirmed, and there is no need to redo the process of trial and error when setting the tube 7, which is convenient for working inside the narrow water pipe 1.
第１図は本考案の実施例である止水装置の要部
断面図、第２図は第１図に用いるチユーブの断面
図、第３図は第１図の止水装置を用いて施工する
PIP工法の概略図である。
１……既設鋳鉄管、３……鋼管、４……新設鋳
鉄管、７……ゴムチユーブ、８……注入材供給細
管、９……エヤー抜出細管。
Figure 1 is a sectional view of the main parts of a water stop device that is an embodiment of the present invention, Figure 2 is a sectional view of the tube used in Figure 1, and Figure 3 is a construction using the water stop device shown in Figure 1.
It is a schematic diagram of the PIP method. 1...Existing cast iron pipe, 3...Steel pipe, 4...New cast iron pipe, 7...Rubber tube, 8...Group material supply thin tube, 9...Air extraction thin tube.
Claims (1)
かつ、下方に足１１が突設された短尺の鋼管製
内挿管３とで形成された間隙に、腐蝕防止充填
材を充填し、該腐蝕防止充填材の流出止めをす
る止水装置において、 前記間隙にセツトする膨張可能のチユーブ７
に注入材供給細管８とエヤー抜出細管９とを設
け、該注入材供給細管８より経時的にゴム状に
硬化する注入材を注入可能とすると共に、 前記注入材を充満させて膨張したチユーブ７
を、前記内挿管３と接続する新設鋳鉄管４の接
続側開口端により保持し、該新設鋳鉄管４と共
に、前記水道管１の内周を摺接してセツトする
ことを特徴とするPIP工法に用いられる充填材
止水装置。 (2) 注入材供給細管８を下方に、エヤー抜出細管
９を上方に備えたチユーブ７とする実用新案登
録請求の範囲第１項に記載のPIP工法に用いら
れる材止水装置。[Scope of claim for utility model registration] (1) Existing large-diameter water pipe 1 and newly fitted pipe,
Further, in the water stop device which fills a corrosion-preventing filler into the gap formed by the short steel pipe inner tube 3 having legs 11 protruding from the bottom and prevents the corrosion-preventing filler from flowing out, Expandable tube 7 set in the gap
An injection material supply capillary tube 8 and an air extraction capillary tube 9 are provided in the injection material supply capillary tube 8, and an injection material that hardens into a rubber-like state over time can be injected from the injection material supply capillary tube 8, and the tube is expanded by being filled with the injection material. 7
is held by the connection-side open end of a newly installed cast iron pipe 4 that connects to the inner tube 3, and is set together with the newly installed cast iron pipe 4 by slidingly contacting the inner circumference of the water pipe 1. Filler water stop device used. (2) A material water stop device used in the PIP construction method as set forth in claim 1 of the utility model registration claim, in which the tube 7 is provided with the injection material supply thin tube 8 on the lower side and the air extraction thin tube 9 on the upper side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984092339U JPS616543U (en) | 1984-06-19 | 1984-06-19 | Filler water stop device in PIP method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984092339U JPS616543U (en) | 1984-06-19 | 1984-06-19 | Filler water stop device in PIP method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS616543U JPS616543U (en) | 1986-01-16 |
| JPH047240Y2 true JPH047240Y2 (en) | 1992-02-26 |
Family
ID=30649048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984092339U Granted JPS616543U (en) | 1984-06-19 | 1984-06-19 | Filler water stop device in PIP method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS616543U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0629234Y2 (en) * | 1987-01-28 | 1994-08-10 | 東洋ゴム工業株式会社 | Barrier air for filling material in pipe laying work |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5766208A (en) * | 1980-10-07 | 1982-04-22 | Ashimori Ind Co Ltd | Construction of protective material |
-
1984
- 1984-06-19 JP JP1984092339U patent/JPS616543U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5766208A (en) * | 1980-10-07 | 1982-04-22 | Ashimori Ind Co Ltd | Construction of protective material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS616543U (en) | 1986-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4049480A (en) | Method and apparatus for forming a joint in a confined space between two abutting ends of conduit liners | |
| JP5501664B2 (en) | Seismic waterproof structure for existing pipes | |
| US6540439B2 (en) | Junction seal between a liner of an underground structure and a penetrating pipe | |
| JPH047240Y2 (en) | ||
| US4626133A (en) | Waterstop for monolith joints | |
| WO1992020901A1 (en) | Injection means | |
| CA2741768C (en) | Method for creating a seal between pipe liners | |
| JP2004162339A (en) | Cut off joint for manhole, pipe joint, manhole structure, and work execution method for the structure | |
| JP3439711B2 (en) | Adhesive injection method | |
| JPH027994Y2 (en) | ||
| JP2537383B2 (en) | Inner surface lining method for existing pipe with branch pipe | |
| JP4313487B2 (en) | Backing material placement method | |
| JPH033673Y2 (en) | ||
| JP2954307B2 (en) | Crack injection equipment | |
| JPH01193489A (en) | Engineering method for regenerating outworn pipe | |
| JP4617037B2 (en) | How to connect manholes and pipes | |
| JP2000345789A (en) | Mouth caulking device used for filling type long-sized steel pipe tip receiving work, and filling type long-sized steel pipe tip receiving method using the device | |
| JPS6261835B2 (en) | ||
| CN116838133A (en) | Plugging method for resisting leakage of prefabricated part caused by pressurized water | |
| JPH0516479Y2 (en) | ||
| JPH04333722A (en) | Method for jointing propeller pipe and existent man-hole to each other | |
| JPH02311690A (en) | Small diamete pipe culvert replacing construction | |
| JPS6246073Y2 (en) | ||
| WO2006054810A1 (en) | Method of water-proofed injection for concrete construction with injection pipe using a melting liguified gum mixture of wastetire to water-proof agent | |
| JPH06212621A (en) | Method for impregnation construction of grout material to ground |