JPH0735287A - Pipeline branch part repairing method and repairing tool - Google Patents
Pipeline branch part repairing method and repairing toolInfo
- Publication number
- JPH0735287A JPH0735287A JP5156529A JP15652993A JPH0735287A JP H0735287 A JPH0735287 A JP H0735287A JP 5156529 A JP5156529 A JP 5156529A JP 15652993 A JP15652993 A JP 15652993A JP H0735287 A JPH0735287 A JP H0735287A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- branch
- repair
- repairing
- repair tool
- 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
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000126 substance Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 230000008439 repair process Effects 0.000 claims description 103
- 239000000463 material Substances 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 17
- 239000002981 blocking agent Substances 0.000 claims description 8
- 238000004078 waterproofing Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 239000003814 drug Substances 0.000 claims description 2
- 238000003475 lamination Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 101150096674 C20L gene Proteins 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 102220543923 Protocadherin-10_F16L_mutation Human genes 0.000 description 1
- 101100445889 Vaccinia virus (strain Copenhagen) F16L gene Proteins 0.000 description 1
- 101100445891 Vaccinia virus (strain Western Reserve) VACWR055 gene Proteins 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004850 liquid epoxy resins (LERs) Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
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
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/179—Devices for covering leaks in pipes or hoses, e.g. hose-menders specially adapted for bends, branch units, branching pipes or the like
-
- 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
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/265—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means specially adapted for work at or near a junction between a main and a lateral pipe
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Pipe Accessories (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、排水管等の管路にお
いて、分岐管の形成された管路分岐部を補修する方法お
よびその補修方法に用いる補修具に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for repairing a branch portion of a drainage pipe or the like in which a branch pipe is formed, and a repair tool used in the repairing method.
【０００２】[0002]
【従来の技術】管路分岐部は、一般に本管に分岐管を接
続して形成するので、その接続部分が損傷しやすく、管
路を補修する場合にはその管路分岐部を含んだ領域につ
いて補修する必要性が高い。2. Description of the Related Art Generally, a pipe branch portion is formed by connecting a branch pipe to a main pipe, so that the connecting portion is easily damaged, and when repairing the pipe passage, a region including the pipe branch portion. There is a high need for repairs.
【０００３】管路の分岐部を補修する従来の技術として
は、例えば特開昭63-167193号公報に示すように、スリ
ーブ部とフランジ部とを一体に有する補強パッドを用い
るものがある。As a conventional technique for repairing a branched portion of a pipe, for example, as shown in JP-A-63-167193, there is one using a reinforcing pad integrally having a sleeve portion and a flange portion.
【０００４】この補強パッドは、その表面に接着剤を塗
布した後、スリーブ部を分岐管内に挿入するとともに，
フランジ部を本管の内面に密着するように本管の内側か
ら装着することにより、補強パッドを分岐管および本管
の内面に接着させ、この補強パッドで損傷を覆うことに
よって、管路分岐部の損傷からの浸入水や水漏れ等を防
止するものである。In this reinforcing pad, after the adhesive is applied to the surface, the sleeve portion is inserted into the branch pipe, and
By attaching the flange part from the inside of the main pipe so as to be in close contact with the inner surface of the main pipe, the reinforcement pad is adhered to the branch pipe and the inner face of the main pipe, and the damage is covered with this reinforcement pad, thereby making the pipe branch part It is intended to prevent intrusion of water and water leakage from damage to the.
【０００５】[0005]
【発明が解決しようとする課題】すなわち、前記した従
来の技術による補修構造においては、補強パッドが損傷
を覆うことによる補修は行なわれるが、管路分岐部に形
成された損傷そのものを補修するものでなく、この補修
後に補強パッドの劣化や損傷が生じるとそのまま管路分
岐部の損傷となるので、補修構造の信頼性の点では必ず
しも十分とはいいがたい。That is, in the repair structure according to the above-mentioned conventional technique, repair is performed by covering the damage with the reinforcing pad, but the damage itself formed at the branch portion of the conduit is repaired. If the deterioration or damage of the reinforcing pad occurs after this repair, the branch portion of the conduit will be damaged as it is, so it is not always sufficient in terms of the reliability of the repair structure.
【０００６】この発明は、このような背景に基づいてな
されたもので、管路分岐部に形成された損傷を覆うとと
もに、その損傷そのものを積極的に補修することによ
り、管路分岐部の損傷に対し信頼性に優れた補修を行な
うことを目的とするものである。The present invention has been made on the basis of such a background, and the damage to the pipe branch portion is covered by covering the damage formed on the pipe branch portion and actively repairing the damage itself. The purpose is to perform highly reliable repair.
【０００７】[0007]
【課題を解決するための手段】この目的を達成するため
に、請求項１記載の発明は、本管と分岐管とで構成する
管路分岐部の内側から、可撓性材料で形成され、筒状の
スリーブ部と，そのスリーブ部の一端部に形成されたフ
ランジ部とを有する補修具を装着する管路分岐部の補修
方法であって、前記スリーブ部を分岐管内に挿入すると
ともに，前記フランジ部を本管の内面側に密接するよう
に前記補修具を装着する工程と、管路分岐部を含む本管
の内面上に合成樹脂を含浸した補修材を積層する工程と
を有し、前記合成樹脂が硬化した後、その補修材で前記
スリーブ部の開口部分に対応する部位を切除するものに
おいて、前記補修具に薬液室を形成して止水剤を保持さ
せ、その止水剤を前記補修具の装着から前記補修材の積
層の完了までのいずれかの工程中に、薬液室から噴出さ
せて管路分岐部の損傷に充填することを特徴とする管路
分岐部の補修方法である。In order to achieve this object, the invention according to claim 1 is formed of a flexible material from the inside of a pipe branch portion formed by a main pipe and a branch pipe. A method of repairing a conduit branch part, wherein a repair tool having a tubular sleeve part and a flange part formed at one end of the sleeve part is mounted, wherein the sleeve part is inserted into a branch pipe, and A step of mounting the repair tool so that the flange portion closely contacts the inner surface of the main pipe, and a step of laminating a repair material impregnated with a synthetic resin on the inner surface of the main pipe including the pipe branch portion, After the synthetic resin is hardened, the repairing material is used to cut away the portion corresponding to the opening of the sleeve portion. From installation of the repair tool to completion of stacking of the repair material During Re or steps, a method of repairing a pipeline bifurcation, characterized in that the filling in the damaged conduit bifurcation is ejected from the chemical chamber.
【０００８】[0008]
【作用】請求項１記載の発明によれば、補修具が管路分
岐部を覆っている他に、薬液室に保持されていた止水剤
が噴出して管路分岐部の損傷を充填して損傷そのものを
積極的に補修するので、信頼性に優れた補修を管路分岐
部の損傷に対して行なうことができる。According to the invention as set forth in claim 1, in addition to the repair tool covering the conduit branch portion, the water blocking agent held in the chemical liquid chamber is ejected to fill the damage to the conduit branch portion. Since the damage itself is positively repaired, highly reliable repair can be performed on the damage to the pipe branch.
【０００９】[0009]
【実施例】以下、図面に示す実施例によりこの発明を説
明するが、まず補修具の一実施例を説明し、その後、管
路分岐部の補修方法を説明する。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the embodiments shown in the drawings. First, an embodiment of a repair tool will be described, and then a method for repairing a pipe branch portion will be described.
【００１０】図２，３において、１は補修具であって、
合成ゴムや軟質の塩化ビニール等の可撓性材料で一体的
に形成されたものである。2 and 3, 1 is a repair tool,
It is integrally formed of a flexible material such as synthetic rubber or soft vinyl chloride.
【００１１】補修具１は円筒状のスリーブ部２とそのス
リーブ部２の下端部に形成されたフランジ部３とを有す
る。The repair tool 1 has a cylindrical sleeve portion 2 and a flange portion 3 formed at the lower end portion of the sleeve portion 2.
【００１２】スリーブ部２の外径寸法は使用される分岐
管の内径と概ね同等であり、スリーブ部２の内径側は分
岐管に装着された後に分岐管の流路として機能するもの
である。そのため、スリーブ部２の内径側上端部は上部
ほど内径が拡大するテーパ面として形成され、分岐管を
流れる異物がひっかかり分岐管につまりを生じることを
軽減するようになっている。The outer diameter of the sleeve portion 2 is approximately the same as the inner diameter of the branch pipe to be used, and the inner diameter side of the sleeve portion 2 functions as the flow path of the branch pipe after being mounted on the branch pipe. Therefore, the upper end portion of the sleeve portion 2 on the inner diameter side is formed as a taper surface whose inner diameter increases toward the upper portion, so that foreign matter flowing in the branch pipe is prevented from being caught and clogged in the branch pipe.
【００１３】フランジ部３の内部には環状の薬液室４が
形成されており、この薬液室４内には止水剤６が充填保
持されている。An annular chemical liquid chamber 4 is formed inside the flange portion 3, and a water blocking agent 6 is filled and held in the chemical liquid chamber 4.
【００１４】そして、前記薬液室４の上面側には複数の
薄肉部５が形成されており、これらの薄肉部５は後述す
るように本管と分岐管との接続位置に臨んで配設されて
いる。A plurality of thin-walled portions 5 are formed on the upper surface side of the chemical liquid chamber 4, and these thin-walled portions 5 are arranged facing the connection position between the main pipe and the branch pipe as described later. ing.
【００１５】これらの薄肉部５は、後述の補修方法の実
施の際に補修具１を加圧することによりその部位で破
れ、補修具１に加わった圧力で薬液室４内の止水剤６を
管路分岐部の所要の位置に噴出させ、管路分岐部の損傷
に向けて強制的に止水剤６を充填するための手段の一つ
である。These thin-walled portions 5 are torn at that portion by pressurizing the repair tool 1 when the repair method described later is carried out, and the waterproof agent 6 in the chemical solution chamber 4 is removed by the pressure applied to the repair tool 1. It is one of the means for injecting the water blocking agent 6 to a desired position of the pipe branch and forcibly filling the waterproofing agent 6 toward the damage of the pipe branch.
【００１６】なお、補修具１においては、前記薄肉部５
を形成せずに、補修具１の使用に先だって前記薬液室４
の所要の部位にピン穴を開けることとしてもよい。In the repair tool 1, the thin portion 5 is
Without the formation of the repair tool 1 before the repair tool 1 is used.
It is also possible to form a pin hole in a required portion of.
【００１７】このような補修具１を用いての管路分岐部
の補修方法は、次のようである。A method of repairing a pipe branch portion using such repair tool 1 is as follows.
【００１８】図４において、１１は管路としての本管、
１２は分岐管を示し、本管１１と分岐管１２は合流のた
めの管路分岐部Ｇが形成され、この管路分岐部Ｇの両側
には公知のようにマンホール１３が形成されている（図
５参照）。In FIG. 4, 11 is a main pipe as a conduit.
Reference numeral 12 denotes a branch pipe, and the main pipe 11 and the branch pipe 12 are formed with a conduit branch portion G for merging, and manholes 13 are formed on both sides of the conduit branch portion G as is known ( (See FIG. 5).
【００１９】そして、以下の説明において、この管路分
岐部Ｇの本管１１と分岐管１２との接続部分に損傷が生
じているものとする。Further, in the following description, it is assumed that the connecting portion between the main pipe 11 and the branch pipe 12 of the pipe branch portion G is damaged.
【００２０】この管路分岐部Ｇへの前記補修具１の装着
工程は、図４に示すように、空気シリンダあるいは油圧
シリンダ等のジャッキ１４を備えた装着用台車１５を本
管１１内に挿入し、位置決め用ロープ１６を管路分岐部
Ｇの両側に位置するマンホール１３から引き合うことに
より、補修具１を分岐管１２の開口端直下に位置させ
る。As shown in FIG. 4, in the step of mounting the repair tool 1 on the pipe branch portion G, a mounting carriage 15 equipped with a jack 14 such as an air cylinder or a hydraulic cylinder is inserted into the main pipe 11. Then, the repairing tool 1 is positioned immediately below the opening end of the branch pipe 12 by pulling the positioning rope 16 from the manholes 13 located on both sides of the conduit branch portion G.
【００２１】この後、前記ジャッキ１４を構成する空気
シリンダに空気ホース１７を介して圧縮空気を供給して
矢印のように伸長させ、補修具１のスリーブ部２を分岐
管１２内に挿入させるとともに、フランジ部３を本管１
１の内面に密接状態となるように装着する。Thereafter, compressed air is supplied to the air cylinder constituting the jack 14 through the air hose 17 to extend it as shown by the arrow, and the sleeve portion 2 of the repair tool 1 is inserted into the branch pipe 12. , Flange 3 to main pipe 1
It is attached so as to be in close contact with the inner surface of 1.
【００２２】この実施例においては、前記補修具１の薬
液室４はこの工程の終了時点では未だ破れていない状態
である。In this embodiment, the chemical liquid chamber 4 of the repair tool 1 is not yet broken at the end of this step.
【００２３】しかし、前記ジャッキ１４の補修具保持部
１４ａは、前記補修具１のフランジ部３を押し上げるも
のとしてあるので、前記ジャッキ１４による補修具１の
押圧力を大きくすれば、この工程において前記フランジ
部３を本管１１の内面との間で挟みつけて前記薬液室４
の薄肉部５を破ることができる。However, since the repair tool holding portion 14a of the jack 14 pushes up the flange portion 3 of the repair tool 1, if the pressing force of the repair tool 1 by the jack 14 is increased, in this step, The flange portion 3 is sandwiched between the inner surface of the main pipe 11 and the chemical chamber 4
It is possible to break the thin portion 5 of the.
【００２４】これにより、薬液室４から噴出する止水剤
６によって補修具１を管路分岐部Ｇの所要の位置に粘着
固定するとともに、管路分岐部Ｇに形成された損傷を充
填させることも可能である。As a result, the repair tool 1 is adhesively fixed to the required position of the conduit branch G by the water blocking agent 6 ejected from the chemical liquid chamber 4, and the damage formed in the conduit branch G is filled. Is also possible.
【００２５】前記のように補修具１を管路分岐部Ｇに装
着した後、前記ジャッキ１４を縮小させ、一方のマンホ
ール１３側から撤去する。After the repair tool 1 is attached to the conduit branch portion G as described above, the jack 14 is contracted and removed from one manhole 13 side.
【００２６】この後、図５に示す補修材の積層工程が行
なわれる。After this, the repair material laminating step shown in FIG. 5 is performed.
【００２７】補修材の積層工程に用いられる補修装置２
１は、外形が略円筒状に形成され、その外周部に設置さ
れた可撓膜２２の内側に圧縮空気等の流体圧を導入する
ことによってその可撓膜２２を膨張収縮可能としたもの
である。Repair device 2 used in the step of laminating repair material
Reference numeral 1 denotes an outer shape that is formed into a substantially cylindrical shape, and is capable of expanding and contracting the flexible membrane 22 by introducing fluid pressure such as compressed air into the flexible membrane 22 installed on the outer peripheral portion thereof. is there.
【００２８】そして、この補修装置２１の前記可撓膜２
２の外周上に装着される補修材２３はガラス繊維やプラ
スチック繊維からなる繊維基材に液状のエポキシ樹脂や
不飽和ポリエステル樹脂を含浸させたものである。な
お、この補修材２３としてはシート状に限らず、予め筒
状に形成されたものであってもよい。Then, the flexible membrane 2 of the repair device 21.
The repairing material 23 mounted on the outer periphery of 2 is a fiber base material made of glass fiber or plastic fiber impregnated with liquid epoxy resin or unsaturated polyester resin. The repair material 23 is not limited to a sheet shape, and may be a tubular shape formed in advance.
【００２９】この積層工程に先だって、地上において前
記補修装置２１の可撓膜２２の外周上に前記補修材２３
を装着し、その状態の補修装置２１を前記装着用台車１
５と同様にマンホール１３を経て前記管路分岐部Ｇに位
置させる。Prior to this laminating step, the repair material 23 is formed on the outer periphery of the flexible film 22 of the repair device 21 on the ground.
And the repair device 21 in that state is mounted on the mounting carriage 1
As in the case of No. 5, it is located at the pipe branch G through the manhole 13.
【００３０】その後、前記補修装置２１にコンプレッサ
２４からの圧縮空気を空気ホース２５を介して、前記可
撓膜２２の内側に供給する。Thereafter, compressed air from the compressor 24 is supplied to the inside of the flexible membrane 22 through the air hose 25 to the repair device 21.
【００３１】これによって、前記可撓膜２２は膨張し、
これに連れて前記補修材２３は本管１１の内面側に押圧
される。その結果、管路分岐部Ｇに装着された補修具１
は補修材２３と本管１１との間に挟み込まれた状態に押
し付けられる。As a result, the flexible film 22 expands,
Along with this, the repair material 23 is pressed against the inner surface side of the main pipe 11. As a result, the repair tool 1 attached to the pipe branch portion G
Is pressed in a state of being sandwiched between the repair material 23 and the main pipe 11.
【００３２】そして、この補修装置２１に加わる圧縮空
気の圧力は前記補修具１のフランジ部３を本管１１の内
面に強く押し付けるように作用し、その圧力も高いの
で、前記薬液室４の薄肉部５が破れ、止水剤６が補修具
１の表面側に密接して位置する本管１１等の内面側に向
けて噴出する。The pressure of the compressed air applied to the repair device 21 acts so as to strongly press the flange portion 3 of the repair tool 1 against the inner surface of the main pipe 11, and since the pressure is also high, the thin wall of the chemical liquid chamber 4 is used. The portion 5 breaks, and the waterproofing agent 6 is ejected toward the inner surface side of the main pipe 11 or the like which is located in close contact with the surface side of the repair tool 1.
【００３３】この場合、補修具１が前記補修材２３を介
して可撓膜２２により全体に管路分岐部Ｇに押し付けら
れているので、前記薄肉部５から噴出した止水剤６は、
他所に逃げることなく，管路分岐部Ｇに形成された目的
の損傷に強制的に送り込まれてこれを充填することとな
る。In this case, since the repair tool 1 is pressed by the flexible membrane 22 through the repair material 23 to the conduit branch portion G as a whole, the waterproofing agent 6 ejected from the thin portion 5 is
Without escaping to another place, the intended damage formed in the pipe branch portion G is forcibly sent and filled.
【００３４】この実施例において、管路分岐部Ｇは本管
１１に形成された貫通穴に分岐管１２の端部を挿入した
構造のものであるため、両者の接続部分は分岐管１２の
外周に沿ったものとなっている。一方、補修具１には前
記のようにフランジ部３の上面に薄肉部５を形成してあ
るので、破れた薄肉部５から噴出した止水剤６はその流
れの方向をそれほど曲げることなく前記接続部分に到達
することができ、止水剤６は確実に損傷を充填すること
ができる。In this embodiment, since the pipe branch G has a structure in which the end of the branch pipe 12 is inserted into the through hole formed in the main pipe 11, the connecting portion between the two is the outer periphery of the branch pipe 12. It is in line with. On the other hand, since the repair tool 1 has the thin portion 5 formed on the upper surface of the flange portion 3 as described above, the waterproofing agent 6 ejected from the broken thin portion 5 does not bend the flow direction so much. The connection part can be reached and the waterproofing agent 6 can reliably fill the damage.
【００３５】前記の状態を一定時間保持して前記補修材
２３の合成樹脂が硬化した後、前記補修装置２１の圧縮
空気を排出して、可撓膜２２を収縮させ、マンホール１
３を経て外部に撤去する。このとき、前記補修材２３は
前記管路分岐部Ｇの内面側全体を覆った状態に本管１１
に固着している（図６参照）。After the above state is maintained for a certain period of time and the synthetic resin of the repair material 23 is cured, the compressed air of the repair device 21 is discharged to shrink the flexible film 22 and the manhole 1
Removed after 3 At this time, the repair material 23 is in a state of covering the entire inner surface side of the conduit branch portion G and the main pipe 11
It is stuck to (see Fig. 6).
【００３６】次に、このようにして管路分岐部Ｇの内面
に形成された補修材２３の切除工程を図６で説明する。Next, the cutting process of the repair material 23 thus formed on the inner surface of the conduit branch portion G will be described with reference to FIG.
【００３７】この切除工程は、先に述べた補修材２３の
積層工程により前記補修具１のスリーブ部２の下端部の
開口が補修材２３で覆われ、本管１１と分岐管１２との
連通が損なわれているので、これを回復するものであ
る。In this cutting step, the opening of the lower end portion of the sleeve portion 2 of the repair tool 1 is covered with the repair material 23 by the above-mentioned stacking step of the repair material 23, and the main pipe 11 and the branch pipe 12 are communicated with each other. This is what is being restored because it has been damaged.
【００３８】この切除工程は、電動モータで回転駆動さ
れるホルソー装置３１をジャッキ装置３２上に設置して
なる切除用台車３３を前記装着用台車１５と同様にして
位置決めを行い、所要の位置で前記ホルソー装置３１を
駆動させながらジャッキ装置３２を伸長させて前記スリ
ーブ部２の下端部の開口に対応する部分の補修材２３を
切除する。In this excision step, the excision carriage 33 having the hole saw device 31 which is rotationally driven by the electric motor installed on the jack device 32 is positioned in the same manner as the mounting carriage 15 and is positioned at a desired position. The jack device 32 is extended while driving the hole saw device 31, and the repair material 23 at the portion corresponding to the opening at the lower end of the sleeve portion 2 is cut off.
【００３９】このようにして得られた管路分岐部Ｇの補
修構造は、図１に示すとおりである。The repair structure of the pipe branch portion G thus obtained is as shown in FIG.
【００４０】図１からあきらかなように、前記補修具１
が保持していた止水剤６は、本管１１と分岐管１２との
接続部分に形成された，管路分岐部Ｇの損傷部分に強制
的に充填されており、その損傷そのものの補修がなされ
ている。As is apparent from FIG. 1, the repair tool 1
The water-stopping agent 6 held by is forcibly filled in the damaged portion of the pipe branch portion G formed in the connecting portion between the main pipe 11 and the branch pipe 12, and the damage itself can be repaired. Has been done.
【００４１】そのうえ、その損傷を含む管路分岐部Ｇの
全体がさらに補修具１に覆われているので、補修が完全
であり、補修構造の信頼性や耐久性が良好である。Moreover, since the entire pipe branch portion G including the damage is further covered with the repair tool 1, the repair is complete, and the repair structure has good reliability and durability.
【００４２】以上説明した補修方法は、図７，図８に示
す変形例の補修具を用いても同様に実施することができ
る。The above-described repair method can be similarly carried out by using the repair tool of the modified example shown in FIGS.
【００４３】図７の補修具４１は、装着工程でのジャッ
キ１４の補修具保持部１４ａに対する係止突部４２を形
成してある点が前記補修具１と相違する。The repair tool 41 shown in FIG. 7 differs from the repair tool 1 in that a locking projection 42 is formed for the repair tool holding portion 14a of the jack 14 in the mounting process.
【００４４】このように係止突部４２を補修具４１のス
リーブ部２に形成してあることにより、補修具４１の分
岐管１２への装着時にフランジ部３に加わる圧力を確実
に小さくすることができ、誤って薬液室４を強圧し、止
水剤６を噴出させるおそれが皆無となる利点がある。By thus forming the locking projection 42 on the sleeve portion 2 of the repair tool 41, it is possible to surely reduce the pressure applied to the flange portion 3 when the repair tool 41 is mounted on the branch pipe 12. Therefore, there is an advantage that there is no possibility that the chemical liquid chamber 4 is erroneously strongly pressed and the water blocking agent 6 is jetted out.
【００４５】図８の補修具５１は、フランジ部３からス
リーブ部２の下部に至る薬液室５２が形成され、スリー
ブ部２の下部で外周側に向けて薄肉部５が形成されてい
る点が前記補修具１と相違する。In the repair tool 51 of FIG. 8, a chemical liquid chamber 52 extending from the flange portion 3 to the lower portion of the sleeve portion 2 is formed, and a thin portion 5 is formed in the lower portion of the sleeve portion 2 toward the outer peripheral side. It is different from the repair tool 1.
【００４６】このような薬液室５２と薄肉部５の配置に
より、分岐管１２の端部を貫通穴の形成された本管１１
の外周面に衝合させた接続構造の管路分岐部Ｇにおい
て、その補修を行なう場合に損傷の生じるおそれの強
い，分岐管１２の端部と本管１１の外周面との接続部分
に止水剤６を確実に供給できる利点がある。Due to the arrangement of the chemical liquid chamber 52 and the thin portion 5 as described above, the main pipe 11 having a through hole at the end of the branch pipe 12 is formed.
In the pipe branch portion G of the connection structure abutting against the outer peripheral surface of the main pipe 11, the end portion of the branch pipe 12 and the outer peripheral surface of the main pipe 11 are likely to be damaged when repairing the pipe branch portion G. There is an advantage that the liquid medication 6 can be reliably supplied.
【００４７】なお、以上説明した実施例においては、補
修具を管路分岐部Ｇに装着する工程の後に、補修材の積
層工程を行なうこととしたが、本願の補修方法において
はこれに限らず、補修材の積層工程の後に、補修材の切
除工程を行い、その後補修具の装着工程を行なうことと
してもよい。この場合、前記補修具５１のようにスリー
ブ部２の下部で外周側に向けて薬液室４の薄肉部５が形
成されているものを用いることとすれば、損傷の生じた
前記接続部分への薬液の到達を一層確実なものとするこ
とができる。In the embodiment described above, the step of laminating the repair material is performed after the step of mounting the repair tool on the conduit branch portion G, but the repair method of the present application is not limited to this. Alternatively, the repair material cutting step may be performed after the repair material stacking step, and then the repair tool mounting step may be performed. In this case, if the thin portion 5 of the chemical liquid chamber 4 is formed in the lower part of the sleeve portion 2 toward the outer peripheral side like the repair tool 51, it is possible to connect to the damaged connection portion. It is possible to further ensure the arrival of the chemical liquid.
【００４８】[0048]
【発明の効果】以上説明したように、請求項１記載の発
明によれば、補修具が管路分岐部を覆っている他に、薬
液室に保持されていた止水剤が噴出して管路分岐部の損
傷を充填して損傷そのものを積極的に補修するので、信
頼性に優れた補修を管路分岐部の損傷に対して行なうこ
とができる。As described above, according to the first aspect of the invention, in addition to the repair tool covering the branching portion of the conduit, the waterproofing agent held in the chemical liquid chamber is ejected to the pipe. Since the damage of the branching portion is filled and the damage itself is positively repaired, highly reliable repair can be performed for the damage of the branching portion.
【図１】本願方法による管路分岐部の補修構造断面図で
ある。FIG. 1 is a sectional view of a repair structure of a pipe branch portion according to the method of the present application.
【図２】補修具の断面図である。FIG. 2 is a cross-sectional view of a repair tool.
【図３】図２のＡ矢視図である。3 is a view on arrow A in FIG. 2. FIG.
【図４】補修具の装着工程の説明図である。FIG. 4 is an explanatory diagram of a process of mounting the repair tool.
【図５】補修材の積層工程の説明図である。FIG. 5 is an explanatory diagram of a stacking process of repair materials.
【図６】補修材を切除する切除工程の説明図である。FIG. 6 is an explanatory diagram of a cutting step of cutting a repair material.
【図７】補修具の変形例の断面図である。FIG. 7 is a cross-sectional view of a modified example of the repair tool.
【図８】補修具の別の変形例の断面図である。FIG. 8 is a cross-sectional view of another modification of the repair tool.
Ｇ 管路分岐部 １ 補修具 ２ スリーブ部 ３ フランジ部 ４ 薬液室 ５ 薄肉部 ６ 止水剤 １１ 本管 １２ 分岐管 ２３ 補修材 G Pipe branch part 1 Repair tool 2 Sleeve part 3 Flange part 4 Chemical liquid chamber 5 Thin wall part 6 Water blocking agent 11 Main pipe 12 Branch pipe 23 Repair material
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ１６Ｌ 55/18 (72)発明者 篠原 廣明 大阪府吹田市千里山竹園１−18−７─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Internal reference number FI Technical indication location F16L 55/18 (72) Inventor Hiroaki Shinohara 1-18-7 Senriyama Bamboo Garden Suita City Osaka Prefecture
Claims (3)
内側から、可撓性材料で形成され、筒状のスリーブ部
と，そのスリーブ部の一端部に形成されたフランジ部と
を有する補修具を装着する管路分岐部の補修方法であっ
て、 前記スリーブ部を分岐管内に挿入するとともに，前記フ
ランジ部を本管の内面側に密接するように前記補修具を
装着する工程と、管路分岐部を含む本管の内面上に合成
樹脂を含浸した補修材を積層する工程とを有し、 前記合成樹脂が硬化した後、その補修材で前記スリーブ
部の開口部分に対応する部位を切除するものにおいて、 前記補修具に薬液室を形成して止水剤を保持させ、その
止水剤を前記補修具の装着から前記補修材の積層の完了
までのいずれかの工程中に、薬液室から噴出させて管路
分岐部の損傷に充填することを特徴とする管路分岐部の
補修方法。1. A tubular sleeve portion made of a flexible material, and a flange portion formed at one end of the sleeve portion, which is made of a flexible material, from the inside of a pipe branch portion formed by a main pipe and a branch pipe. A method of repairing a conduit branch part for mounting a repair tool having: a step of inserting the sleeve part into a branch pipe, and mounting the repair tool so that the flange part is in close contact with the inner surface side of the main pipe. And a step of laminating a repair material impregnated with a synthetic resin on the inner surface of the main pipe including the pipe branch portion, and after the synthetic resin is hardened, the repair material corresponds to the opening portion of the sleeve portion. In the step of cutting out the part to be repaired, a water chamber is formed in the repair tool to hold a water blocking agent, and the water blocking agent is attached from the mounting of the repair tool to the completion of lamination of the repair material. And then spray it from the chemical chamber to fill the damage at the pipe branch. A method for repairing a pipe branch, which is characterized in that
端部に形成されたフランジ部とを有する補修具を可撓性
材料で形成するとともに、その補修具に止水剤を保持す
る薬液室を形成したことを特徴とする管路分岐部の補修
具。2. A liquid medicine chamber for forming a repair tool having a tubular sleeve portion and a flange portion formed at one end of the sleeve portion with a flexible material, and holding a waterproofing agent in the repair tool. A repair tool for a pipe branch, which is characterized in that
具において、前記薬液室で前記補修具の外面側となる部
位には肉厚の薄い薄肉部を形成してあることを特徴とす
る管路分岐部の補修用補修具。3. The repair tool for repairing a pipe branch according to claim 2, wherein a thin portion having a small wall thickness is formed in a portion of the chemical liquid chamber that is an outer surface side of the repair tool. Repair tool for repairing pipe branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15652993A JP3251384B2 (en) | 1993-06-28 | 1993-06-28 | Repair method of pipe branch and repair tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15652993A JP3251384B2 (en) | 1993-06-28 | 1993-06-28 | Repair method of pipe branch and repair tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0735287A true JPH0735287A (en) | 1995-02-07 |
| JP3251384B2 JP3251384B2 (en) | 2002-01-28 |
Family
ID=15629789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15652993A Expired - Lifetime JP3251384B2 (en) | 1993-06-28 | 1993-06-28 | Repair method of pipe branch and repair tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3251384B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006026632A (en) * | 2004-06-16 | 2006-02-02 | Pcg Tekunika:Kk | Piping lining apparatus and piping lining method |
| JP2007071349A (en) * | 2005-09-09 | 2007-03-22 | Asahi Tec Corp | Lead-in repairing method for mounting pipe |
| JP2007321841A (en) * | 2006-05-31 | 2007-12-13 | Miyama Ind Corp | Packer used for repairing pipe passage having branch pipe |
-
1993
- 1993-06-28 JP JP15652993A patent/JP3251384B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006026632A (en) * | 2004-06-16 | 2006-02-02 | Pcg Tekunika:Kk | Piping lining apparatus and piping lining method |
| JP4611779B2 (en) * | 2004-06-16 | 2011-01-12 | 株式会社Ｐ・Ｃ・Ｇテクニカ | Piping lining apparatus and piping lining method |
| JP2007071349A (en) * | 2005-09-09 | 2007-03-22 | Asahi Tec Corp | Lead-in repairing method for mounting pipe |
| JP2007321841A (en) * | 2006-05-31 | 2007-12-13 | Miyama Ind Corp | Packer used for repairing pipe passage having branch pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3251384B2 (en) | 2002-01-28 |
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