JP4976079B2 - Pipe inner surface water-stop device and its construction method - Google Patents

Pipe inner surface water-stop device and its construction method Download PDF

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JP4976079B2
JP4976079B2 JP2006227890A JP2006227890A JP4976079B2 JP 4976079 B2 JP4976079 B2 JP 4976079B2 JP 2006227890 A JP2006227890 A JP 2006227890A JP 2006227890 A JP2006227890 A JP 2006227890A JP 4976079 B2 JP4976079 B2 JP 4976079B2
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water
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pipe
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JP2008051207A (en
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秀夫 田中
文夫 門田
太 井上
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早川ゴム株式会社
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本発明は、既設管路の内周面の漏水部を内面から被覆して止水する内面被覆装置及びその施工方法に関するものである。   The present invention relates to an inner surface coating apparatus for covering a water leakage portion on an inner peripheral surface of an existing pipe line from the inner surface and stopping the water, and a construction method therefor.
下水や農業用水等の管路の、クラック等により漏水する箇所を補修する方法は従来から種々に実施されているが、このような管路は地中に埋設されたものであり、土を掘り返して漏水している箇所を露出させ、管路の外面から補修材で止水を行い補修するのが一般的である。   Various methods have been used to repair areas where water leaks due to cracks in pipes such as sewage and agricultural water, but such pipes are buried in the ground and dug up the soil. It is common practice to expose the leaking location and repair with water from a repair material.
また大径管で作業者が管路の中に入れる場合は、管路内にゴム製又は他の材質のシール材を持ち込み、押えバンドやボルトで漏水部を押圧シールし補修することが行われている。   In addition, when an operator enters a pipe with a large-diameter pipe, a rubber or other sealing material is brought into the pipe, and the leaking part is pressed and repaired with a presser band or bolt. ing.
さらに、管路の長さ方向に長いクラックや複数のクラックが発生して漏水する箇所を内面より止水補修する場合は、長いクラックや複数のクラックを全体的に覆う必要があるため、止水補修する補修材も長いものが必要となり、この種の補修材としては、例えば特許文献1や特許文献2等に記載のものが提案されている。
特開平8−277569 特開2003−106476
Furthermore, when repairing water leakage from the inner surface where a long crack or multiple cracks are generated in the length direction of the pipeline, it is necessary to cover the long cracks or multiple cracks as a whole. A long repair material is required for repair, and as this type of repair material, for example, those described in Patent Document 1, Patent Document 2, and the like have been proposed.
JP-A-8-277469 JP 2003-106476 A
しかしながら、特許文献1記載のものは、図14に示すように、連結用被覆体100が弾性スリーブ101と拡開保持ベース102よりなり、弾性スリーブ101には突出部103が設けられ、この突出部103に次の連結用被覆体100を圧接せしめて連結して行き、長尺の補修材を形成しようとするものである。この補修材は、連結する時の弾性スリーブ101間の連結程度が止水性を左右するため、熟練が必要で作業も難しく、また弾性スリーブ101と拡張保持ベース102とを隙間なく補修面全面に取付けるため、コスト高となるという問題がある。   However, as shown in FIG. 14, the connecting cover 100 includes an elastic sleeve 101 and an expanded holding base 102, and the elastic sleeve 101 is provided with a protruding portion 103, as shown in FIG. The next connecting covering 100 is brought into pressure contact with 103 and connected to form a long repair material. In this repair material, the degree of connection between the elastic sleeves 101 when connecting them affects the water stoppage, so that skill is required and the work is difficult, and the elastic sleeve 101 and the extended holding base 102 are attached to the entire repair surface without any gaps. Therefore, there is a problem that the cost becomes high.
また、特許文献2記載のものは、図15に示すように、鋼板211をロール状に紐212で結束して、管路200に繋がるマンホール210内に搬入し、マンホール210内で紐212を取除いて鋼板211を既設管200内で拡径し、その周方向端部同士を溶接して補強短管215を製作し、さらに補強短管215の管軸方向端部216同士を重ねて溶接するということを繰り返して補強管217を完成させ、補強管217の両端部に可とう性環状体213を配してそれらを固定バンド214で補強管217の内面に固定し、耐震性更生管を構築する。この工法に用いられる鋼板211はステンレス製が良いとされているが、鋼板211の端部を溶接するために溶接設備をマンホール210及び管路200内に持ち込む必要があり、溶接作業も管路200内で行い、しかも高度な水密溶接をする必要がある。それゆえ非常に高度な技術と設備とを必要とし、またコスト高となるという問題がある。   Further, as shown in FIG. 15, the one described in Patent Document 2 is a method of binding a steel plate 211 in a roll shape with a string 212, carrying it in a manhole 210 connected to the pipe line 200, and removing the string 212 in the manhole 210. Except for expanding the diameter of the steel plate 211 in the existing pipe 200, welding the circumferential ends of the steel plate 211 to manufacture the reinforcing short pipe 215, and further welding the pipe axial direction end parts 216 of the reinforcing short pipe 215 to overlap each other. By repeating the above, the reinforcing pipe 217 is completed, and the flexible annular body 213 is arranged at both ends of the reinforcing pipe 217, and these are fixed to the inner surface of the reinforcing pipe 217 with the fixing band 214, thereby constructing an earthquake-resistant rehabilitation pipe. To do. The steel plate 211 used in this method is preferably made of stainless steel, but it is necessary to bring welding equipment into the manhole 210 and the pipe line 200 in order to weld the ends of the steel plate 211, and the welding work is also performed in the pipe line 200. It is necessary to perform high-watertight welding. Therefore, there is a problem that very high technology and equipment are required and the cost is high.
本発明は、下水、農業用水及び雨水などの管路のクラック等より漏水する箇所を補修する装置及びその施工方法であって、取付けが容易で管内溶接等の高度な技術も必要でなく、装置の部材も簡素で安価であり、管内の長尺の漏水箇所を止水補修できる装置及びその施工方法を提供するものである。   The present invention is an apparatus for repairing a place where water leaks from a crack in a pipeline such as sewage, agricultural water, and rainwater, and its construction method, which is easy to install and does not require advanced technology such as in-pipe welding. These members are also simple and inexpensive, and provide a device that can repair a long water leakage point in a pipe and a construction method thereof.
すなわち、本発明の管路の内面被覆止水装置は、既設管路の内周面を被覆して止水する管路の内面被覆止水装置において、前記管路の内周面に設けられる可とう性遮水円筒部材と、前記可とう性遮水円筒部材の両端部の内周面にそれぞれ拡張バンドで拡張固定されて前記可とう性遮水円筒部材の両端部を止水する二つの止水可とう継手を有し、前記止水可とう継手は少なくとも両端部に止水突起を有し、その止水可とう継手の一方の端部は前記可とう性遮水円筒部材を押圧して止水し、他方の端部は前記管路の内面を押圧して止水し、前記可とう性遮水円筒部材の内周面の、前記二つの止水可とう継手の間の部位を覆う耐圧円筒部材を有していることを特徴とするものである。 That is, the pipe inner surface water-stop device of the present invention can be provided on the inner peripheral surface of the pipe in the pipe inner surface water-stop device that covers the inner peripheral surface of the existing pipe and stops the water. The flexible water-impervious cylindrical member and two stoppers that are expanded and fixed to the inner peripheral surfaces of both ends of the flexible water-impervious cylindrical member by extension bands to stop both ends of the flexible water-impervious cylindrical member. A water-tight joint , the water-stopper flexible joint has water-stop projections at least at both ends, and one end of the water-stopper flexible joint presses the flexible water-impervious cylindrical member. Water is stopped, and the other end presses the inner surface of the pipe to stop the water, and covers a portion between the two water-stopper flexible joints on the inner peripheral surface of the flexible water-impervious cylindrical member. It has a pressure-resistant cylindrical member.
また、本発明の内面被覆止水装置の施工方法は、可とう性遮水円筒部材と止水可とう継手と耐圧円筒部材とを具え、既設管路の内周面を被覆して止水する管路の内面被覆止水装置の、管路内での施工方法において、前記管路の内周面に沿わせて前記可とう性遮水円筒部材を配し、前記可とう性遮水円筒部材の両端部の内周面に、それぞれ拡張バンドで拡張固定される二つの前記止水可とう継手をその止水可とう継手の一方の端部が前記可とう性遮水円筒部材を押圧して止水し、他方の端部が前記管路の内面を押圧して止水するように取付けて、前記可とう性遮水円筒部材の両端部を止水し、前記二つの止水可とう継手の間を覆うように前記耐圧円筒部材を取付けることを特徴とするものである。
Moreover, the construction method of the inner surface-covered water-stopping device of the present invention comprises a flexible water-impervious cylindrical member, a water-stopping flexible joint, and a pressure-resistant cylindrical member, and covers the inner peripheral surface of the existing pipe line to stop the water. In the construction method of a pipe inner surface covering water-stop device in a pipe, the flexible water-impervious cylindrical member is arranged along the inner peripheral surface of the pipe, and the flexible water-impervious cylindrical member is arranged. The two water-stopping flexible joints that are expanded and fixed by the extension bands are respectively pressed on the inner peripheral surfaces of the both ends of the water-proofing joint, and one end of the water-stopping flexible joint presses the flexible water-proof cylindrical member. The two water-stopping flexible joints are attached so that the other end presses the inner surface of the pipe to stop the water and both ends of the flexible water-proof cylindrical member are stopped. The pressure-resistant cylindrical member is attached so as to cover the space.
本発明の管路の内面被覆止水装置及びその施工方法によれば、既設管路の内周面に設けられる可とう性遮水円筒部材の両端部を、それら両端部の内周面にそれぞれ拡張バンドで拡張固定される二つの止水可とう継手が止水し、その可とう性遮水円筒部材の内周面の、前記二つの止水可とう継手の間の部位を耐圧円筒部材が覆うので、管内の長尺あるいは複数の漏水箇所を一つの止水装置で止水補修でき、地上より管路に止水装置を搬入する場合も分割または折りたたみにより搬入が容易であり、管内溶接等の高度な技術も必要でなく取付けが容易であり、構成部材も簡素なので安価な装置とすることができる。   According to the inner surface covering water stop device of the present invention and the construction method thereof, both ends of the flexible water-impervious cylindrical member provided on the inner peripheral surface of the existing pipe are respectively connected to the inner peripheral surfaces of these both ends. Two water-stopping flexible joints that are expanded and fixed by the expansion band stop water, and the pressure-resistant cylindrical member is located between the two water-stopping flexible joints on the inner peripheral surface of the flexible water-blocking cylindrical member. Since it covers, it is possible to repair the long or multiple leak points in the pipe with one water stop device, and even when the water stop device is carried into the pipeline from the ground, it is easy to carry in by dividing or folding, pipe welding etc. Therefore, it is easy to mount, and the structural members are simple, so that an inexpensive device can be obtained.
なお、本発明においては、前記止水可とう継手は、可とう継手本体と前記拡張バンドとからなり、前記止水可とう継手は少なくとも両端部に止水突起を有し、その止水可とう継手の一方の端部は前記可とう性遮水円筒部材を押圧して止水し、他方の端部は前記管路の内面を押圧し止水するものであると好ましい。   In the present invention, the water stop flexible joint includes a flexible joint main body and the extension band, and the water stop flexible joint has water stop protrusions at least at both ends, and the water stop flexible. One end of the joint preferably presses the flexible water-impervious cylindrical member to stop water, and the other end presses the inner surface of the pipe to stop water.
また、本発明においては、前記止水可とう継手の前記拡張バンドは、拡張冶具で拡張される1つ以上の切断部と、前記切断部を拡張状態で固定するスペーサーと、を有するものであると好ましい。   In the present invention, the expansion band of the water-stopper flexible joint has one or more cutting portions that are expanded by an expansion jig, and a spacer that fixes the cutting portion in an expanded state. And preferred.
さらに本発明においては、前記耐圧円筒部材は、拡張冶具で拡張される1つ以上の切断部と、前記切断部を拡張状態で固定するスペーサーと、を有するものであると好ましい。   Furthermore, in the present invention, it is preferable that the pressure-resistant cylindrical member has one or more cutting portions that are expanded by an expansion jig and a spacer that fixes the cutting portions in an expanded state.
そして本発明においては、前記切断部には、その切断部の両側に固定される固定部を有するカバープレートを設けると好ましい。   In the present invention, it is preferable that the cut portion is provided with a cover plate having fixed portions fixed on both sides of the cut portion.
以下、本発明の実施の形態について説明する。
(止水可とう継手)
本発明の実施の形態における止水可とう継手は、弾性材料からなる円筒形状の可とう継手本体と、管内側に配設する拡張バンドとからなり、可とう継手本体が拡張バンドにより管壁に押圧されて止水効果を発揮する。弾性材料は、スチレン・ブタジエンゴム、EPDM、クロロプレンゴム、ウレタンゴムなどの合成ゴムや天然ゴム、及び軟質塩化ビニル樹脂、熱可塑性エラストマーなどからなる群より選ぶことができる。
Embodiments of the present invention will be described below.
(Water stop flexible joint)
The waterproof joint according to the embodiment of the present invention includes a cylindrical flexible joint body made of an elastic material and an expansion band disposed inside the pipe. The flexible joint body is attached to the pipe wall by the expansion band. Pressed to exert a water stop effect. The elastic material can be selected from the group consisting of synthetic rubber such as styrene / butadiene rubber, EPDM, chloroprene rubber and urethane rubber, natural rubber, soft vinyl chloride resin and thermoplastic elastomer.
(可とう継手本体)
弾性材料からなる上記可とう継手本体は円筒形状で、管路の内面に接する側には、可とう性遮水円筒部材の端部を押圧して可とう継手本体と可とう性遮水円筒部材との間を止水する止水突起と、管路内面を押圧して可とう継手本体と管路内面との間を止水する止水突起とを少なくとも有しており、それらの止水突起の間にさらに止水突起を設けて止水性を高めることもできる。
(Flexible fitting body)
The flexible joint body made of an elastic material has a cylindrical shape, and on the side in contact with the inner surface of the conduit, the end of the flexible water-proof cylindrical member is pressed to form the flexible joint body and the flexible water-proof cylindrical member. And at least a water stop protrusion that presses the inner surface of the pipe and stops the water between the flexible joint body and the inner surface of the pipe. Further, a water stop protrusion can be provided between them to increase the water stop.
(拡張バンド及び耐圧円筒部材)
上記拡張バンド及び、本発明の実施の形態における耐圧円筒部材は、各々剛性材料からなり、切断部を有するリング形状で、切断部には拡張冶具の係止部が設けられている。拡張バンドの端部間を拡張冶具で拡張し、その拡張した端部間に適正な寸法のストッパーを挿入して固定し、ストッパーの両側の係止部には、ストッパーを覆うように係止部に固定されるカバープレートを設ける。また拡張状態を固定する手段であるストッパーや固定ピン及びカバープレートも剛性材料からなり形状は種々に選択できる。剛性材料は、ステンレス鋼、防錆メッキ鋼、防錆樹脂コート鋼、硬質プラスチック、繊維強化プラスチック等の単独又は複合材料から形成することができ、これらは腐食し難いので望ましい。
(Expansion band and pressure-resistant cylindrical member)
The expansion band and the pressure-resistant cylindrical member in the embodiment of the present invention are each made of a rigid material and have a ring shape having a cutting portion, and the cutting portion is provided with a locking portion of an expansion jig. Extend the space between the ends of the expansion band with an expansion jig, and insert and fix stoppers of appropriate dimensions between the expanded ends. The locking portions on both sides of the stopper cover the stoppers. A cover plate to be fixed to is provided. The stopper, fixing pin, and cover plate, which are means for fixing the expanded state, are also made of a rigid material and can be selected in various shapes. The rigid material can be formed of a single material or a composite material such as stainless steel, rust-proof plated steel, rust-proof resin-coated steel, hard plastic, and fiber-reinforced plastic, and these are desirable because they hardly corrode.
(可とう性遮水円筒部材)
本発明の実施の形態における可とう性遮水円筒部材は、上記止水可とう継手間を遮水する円筒部材であり、可とう性のシート部材を円筒状に成型したもので、シート端部を接合して円筒状に成型することもできる。可とう性遮水円筒部材の材質は、可とう継手本体と同様なものから選ばれると、既設の管路に例えば60cmのマンホール蓋より搬入する場合に折りたたみができるため好ましい。また可とう性遮水円筒部材の両端部には、管中心方向に突出する突出部が設けられると、可とう継手本体の止水突起を取付けるときの位置決めに有用である。
(Flexible water shielding cylindrical member)
The flexible water-impervious cylindrical member according to the embodiment of the present invention is a cylindrical member that shields water between the water-stopper flexible joints, and is formed by forming a flexible sheet member into a cylindrical shape. Can be joined and molded into a cylindrical shape. The material of the flexible water-impervious cylindrical member is preferably selected from the same material as that of the flexible joint body, since it can be folded when it is carried into an existing pipe line from, for example, a 60 cm manhole cover. Moreover, if the protrusion part which protrudes in the pipe | tube center direction is provided in the both ends of a flexible water-proof cylindrical member, it will be useful for the positioning when attaching the water stop protrusion of a flexible joint main body.
(拡張装置)
上記拡張装置も剛性材料からなり、例えば、拡張バンドの係止部に勘合する拡張爪を有する一対のアーム部と、アーム部を広げる油圧ジャッキ及び油圧ポンプとからなる。
(Expansion device)
The expansion device is also made of a rigid material, and includes, for example, a pair of arm portions having expansion claws that fit into the locking portions of the expansion band, a hydraulic jack that expands the arm portions, and a hydraulic pump.
次に、本発明の実施の形態を実施例によって、図面に基づき詳細に説明する。ここに、図1は、本発明の管路の内面被覆止水装置の一実施例及び、その実施例の管路の内面被覆止水装置を施工する本発明の施工方法の一実施例を示す断面図、図2は、図1のA部を拡大して示す拡大断面図、図3は、図1のB−B線に沿う断面図、図4(a),(b)は、上記実施例の管路の内面被覆止水装置の可とう性遮水円筒部材を示す正面図及び断面図、図5(a),(b)は、上記実施例の管路の内面被覆止水装置の三分割型の耐圧円筒部材を構成する下方の耐圧分割プレートを示す正面図及び平面図、図6は、その下方の耐圧分割プレートを示す斜視図、図7は、図3に示す取付け状態にする際の上記耐圧円筒部材のセット方法を示す説明図である。   Next, embodiments of the present invention will be described in detail by way of examples with reference to the drawings. FIG. 1 shows one embodiment of the pipe inner surface water-stop device of the present invention and one embodiment of the construction method of the present invention for constructing the pipe inner surface water-stop device of the embodiment. 2 is an enlarged cross-sectional view showing an A portion of FIG. 1 in an enlarged manner, FIG. 3 is a cross-sectional view taken along the line BB in FIG. 1, and FIGS. FIG. 5A and FIG. 5B are a front view and a cross-sectional view showing a flexible water shielding cylindrical member of an inner pipe covering water stop device of an example, and FIGS. 5A and 5B are views of the inner pipe covering water stop device of the above embodiment. FIG. 6 is a perspective view showing a lower pressure-resistant dividing plate, and FIG. 7 is a mounting state shown in FIG. 3. It is explanatory drawing which shows the setting method of the said pressure | voltage resistant cylindrical member in the case.
また、図8は、上記耐圧分割プレートの組付け後の状態を示す断面図、図9は、二分割型の耐圧円筒部材の耐圧分割プレートを拡張装置で管内周面に取付ける方法を示す説明図、図10は、止水可とう継手を二分割型の拡張バンドで取付ける方法を示す説明図、図11は、図10に示す取付け後の一方の止水可とう継手の状態を示す断面図、図12は、図10に示す取付け後の他方の止水可とう継手の状態を示す断面図、図13は、可とう性遮水円筒部材の別の形態を示す斜視図であり、図中、符号1は既設管路の管、3は上記実施例の管路の内面被覆止水装置をそれぞれ示す。   FIG. 8 is a cross-sectional view showing a state after assembly of the pressure-resistant dividing plate, and FIG. 9 is an explanatory diagram showing a method of attaching the pressure-resistant dividing plate of the two-divided pressure-resistant cylindrical member to the inner peripheral surface of the pipe with an expansion device FIG. 10 is an explanatory view showing a method of attaching a water-stopper flexible joint with a two-part expansion band, FIG. 11 is a cross-sectional view showing a state of one water-stopper flexible joint after attachment shown in FIG. FIG. 12 is a cross-sectional view showing a state of the other water-stopper flexible joint after installation shown in FIG. 10, and FIG. 13 is a perspective view showing another form of the flexible water-impervious cylindrical member. Reference numeral 1 denotes a pipe of an existing pipe line, and 3 denotes an inner surface covering water stop device of the pipe line of the above embodiment.
この実施例の管路の内面被覆止水装置3は、図1に示す如く、可とう性遮水円筒部材4と、その可とう性遮水円筒部材4の両端部を止水する二つの止水可とう継手5と、可とう性遮水円筒部材4の内周面の上記二つの止水可とう継手5の間の部位を覆う耐圧円筒部材6とを具えてなり、可とう性遮水円筒部材4は、管1の内面に発生した間隔の離れた複数のクラック7を内側から覆うように長尺の管1の内面に沿って敷設され、二つの止水可とう継手5は、その可とう性遮水円筒4の両端部にそれぞれ配置されている。   As shown in FIG. 1, the pipe inner surface water-stop device 3 of this embodiment has a flexible water-impervious cylindrical member 4 and two water-stops that stop both ends of the flexible water-impervious cylindrical member 4. It comprises a water-resistant flexible joint 5 and a pressure-resistant cylindrical member 6 that covers a portion between the two water-stopping flexible joints 5 on the inner peripheral surface of the flexible water-impervious cylindrical member 4. The cylindrical member 4 is laid along the inner surface of the long tube 1 so as to cover a plurality of spaced cracks 7 generated on the inner surface of the tube 1 from the inside. It arrange | positions at the both ends of the flexible impermeable cylinder 4, respectively.
この実施例の管路の内面被覆止水装置3では、二つの止水可とう継手5が各々、円筒状の可とう継手本体8と、その可とう継手本体8を管壁に押圧するための拡張バンド10とを有し、各可とう継手本体8の外周面の一端部(図2では右端部)に設けられた環状の止水突起9が可とう性遮水円筒部材4の一端部の内周面を押圧するとともに、各可とう継手本体8の外周面の他端部(図2では左端部)に設けられた環状の止水突起9が管1の内周面を押圧することにより、可とう性遮水円筒部材4及びその両端部の止水可とう継手5の止水状態を維持する。   In the pipe inner surface covering water stop device 3 of this embodiment, each of the two water stop flexible joints 5 presses the cylindrical flexible joint body 8 and the flexible joint body 8 against the pipe wall. And an annular water stop projection 9 provided at one end (right end in FIG. 2) of the outer peripheral surface of each flexible joint body 8. While the inner peripheral surface is pressed, an annular water stop protrusion 9 provided on the other end portion (left end portion in FIG. 2) of the outer peripheral surface of each flexible joint body 8 presses the inner peripheral surface of the pipe 1. The water-stopping state of the flexible water-impervious cylindrical member 4 and the water-stopping flexible joint 5 at both ends thereof is maintained.
なお、この実施例では、管1の接続部2に用いる図1では左側の止水可とう継手5は、管1の中間部に用いる図1では右側の止水可とう継手5よりも管軸方向に幅広いものとされるとともに、その可とう継手本体8の外周面の両端部に設けられた上記止水突起9の間にも複数の環状の止水突起9を設けられている。従って、管1の接続部2が補修部にある場合は、図2に示すように、その幅広の止水可とう継手5の幅方向の中心位置を接続部2に合わせて取付ければ、地震や地盤沈下で接続部に変位が発生する場合にも止水可とう継手5が追従して変形しつつそれらの止水突起9で止水状態を維持することができる。   In this embodiment, the left water-stopper flexible joint 5 in FIG. 1 used for the connection portion 2 of the pipe 1 is a pipe shaft rather than the right water-stopper flexible joint 5 in FIG. A plurality of annular water stop protrusions 9 are also provided between the water stop protrusions 9 provided at both ends of the outer peripheral surface of the flexible joint body 8. Therefore, when the connection part 2 of the pipe 1 is in the repair part, as shown in FIG. 2, if the center position in the width direction of the wide waterproof joint 5 is attached to the connection part 2, Even when displacement occurs in the connection part due to ground subsidence, the water stop flexible joint 5 follows and deforms, and the water stop state can be maintained by these water stop protrusions 9.
この実施例の管路の内面被覆止水装置3ではまた、可とう性遮水円筒部材4の両端部に、図2に拡大して示すように半径方向内方へ突出する環状の突出部14が設けられており、二つの止水可とう継手5の各々の、可とう継手本体8の一端部の(図2では右端部の)止水突起9は、その可とう性遮水円筒部材4の突出部14と掛合して、可とう性遮水円筒部材4の端部の水密性を高めるとともに、地震や地盤沈下で可とう性遮水円筒部材4から止水可とう継手5が分離するのを防止する。   In the pipe inner surface water stop device 3 of this embodiment, the annular projecting portions 14 projecting radially inward as shown in an enlarged view in FIG. 2 at both ends of the flexible water shielding cylindrical member 4. Each of the two water-stopper flexible joints 5 has a water-stop projection 9 (at the right end in FIG. 2) at one end of the flexible joint main body 8, and the flexible water-proof cylindrical member 4. The projecting portion 14 is engaged with each other to improve the water tightness of the end portion of the flexible water-impervious cylindrical member 4, and the water-stoppable flexible joint 5 is separated from the flexible water-impervious cylindrical member 4 in the event of an earthquake or ground subsidence. To prevent.
可とう性遮水円筒部材4は弾性材料からなるため、クラック7等から侵入した地下水などの水圧で管内周断面を侵す膨れが発生するので、この実施例の管路の内面被覆止水装置3は、両端部の止水可とう継手5の間に配置した耐圧円筒部材6によって、図3に示すように可とう性遮水円筒部材4の内周面を押圧することで、可とう性遮水円筒部材4の膨れを防止するとともに水圧にも耐える構成となっている。   Since the flexible water-impervious cylindrical member 4 is made of an elastic material, a swell that erodes the inner circumferential cross section of the pipe due to water pressure such as groundwater entering from the crack 7 or the like occurs. As shown in FIG. 3, the pressure-resistant cylindrical member 6 disposed between the water-stopping flexible joints 5 at both ends presses the inner peripheral surface of the flexible water-impervious cylindrical member 4 so that the flexible shielding is achieved. The water cylindrical member 4 is prevented from being swollen and can withstand water pressure.
各止水可とう継手5の拡張バンド10及び耐圧円筒部材6はそれぞれ、一つ以上の切断部30を有するが、地上から管路内への持ち込みには二つ以上の切断部を有するほうが好ましい。図3〜図8に示す耐圧円筒部材6は、三つの切断部を有する三分割型の例、図9に示す耐圧円筒部材6及び図10〜図12に示す拡張バンド10は、二つの切断部を有する二分割型の例である。図3に示す例では、管1内に敷設された可とう性遮水円筒部材4の内側に配置された三分割型の耐圧円筒部材6の三箇所の切断部30の各々の両側にそれぞれ拡張爪受け部12が設けられ、後述の如くしてそれらの切断部30の両側の拡張爪受け部12の間にスペーサー11が挿入されるとともに両側の拡張爪受け部12にそれらに亘るカバープレート13がボルト25で取付けられて、それらの切断部30の拡張状態が維持されている。   Each of the expansion band 10 and the pressure-resistant cylindrical member 6 of each water-stopper flexible joint 5 has one or more cutting portions 30, but it is preferable to have two or more cutting portions for bringing into the pipe line from the ground. . The pressure-resistant cylindrical member 6 shown in FIGS. 3 to 8 is an example of a three-part type having three cut portions, the pressure-resistant cylindrical member 6 shown in FIG. 9 and the expansion band 10 shown in FIGS. 10 to 12 have two cut portions. This is an example of a two-part type having In the example shown in FIG. 3, expansion is performed on both sides of each of the three cut portions 30 of the three-part pressure-resistant cylindrical member 6 disposed inside the flexible water-impervious cylindrical member 4 laid in the pipe 1. A claw receiving portion 12 is provided, and a spacer 11 is inserted between the extended claw receiving portions 12 on both sides of the cutting portion 30 as described later, and the cover plate 13 extending over the extended claw receiving portions 12 on both sides is provided. Are attached with bolts 25, and the expanded state of the cutting portions 30 is maintained.
図3に示す耐圧円筒部材6は、三枚の耐圧分割プレート15で構成され、それらのうちの下方の耐圧分割プレート15には、図5及び図6に示すように、円周方向の両端部に、カバープレート13を取付けるためのネジ穴18を有する二枚の短冊状厚板を互いに間隔を空けて固定してなる上記拡張爪受け部12が設けられ、さらに、この耐圧分割プレート15に対し図1に示すように円周方向及び管軸方向にそれぞれ隣接して設置される他の耐圧分割プレート15との接合を円滑にするために、円周方向の両端部に円周側補助プレート16が設けられるとともに管軸方向の一端部に管軸側補助プレート17が設けられている。   The pressure-resistant cylindrical member 6 shown in FIG. 3 is composed of three pressure-resistant divided plates 15, and the lower pressure-resistant divided plate 15 among them is provided with both end portions in the circumferential direction as shown in FIGS. 5 and 6. The extended claw receiving portion 12 is provided by fixing two strip-like thick plates having screw holes 18 for attaching the cover plate 13 with a space therebetween, and further, with respect to the pressure-resistant dividing plate 15. As shown in FIG. 1, in order to facilitate the joining with other pressure-resistant dividing plates 15 installed adjacent to each other in the circumferential direction and the tube axis direction, circumferential auxiliary plates 16 are provided at both ends in the circumferential direction. And a tube axis side auxiliary plate 17 is provided at one end in the tube axis direction.
また、図7に示すように、三枚の耐圧分割プレート15のうちの他の一枚(図7では左上に示す)は、円周側補助プレート16が円周方向の一端部だけに設けられる点のみ上記下方の耐圧分割プレート15と異なっており、他の点ではその下方の耐圧分割プレート15と同一の構成を具えている。そして三枚の耐圧分割プレート15のうちの残る一枚(図7では右上に示す)は、円周側補助プレート16が設けられていない点のみ上記下方の耐圧分割プレート15と異なっており、他の点ではその下方の耐圧分割プレート15と同一の構成を具えている。   Further, as shown in FIG. 7, in one of the three pressure-resistant divided plates 15 (shown in the upper left in FIG. 7), the circumferential auxiliary plate 16 is provided only at one end in the circumferential direction. Only the point is different from the lower pressure-resistant dividing plate 15, and the other points are the same as the pressure-resistant dividing plate 15 below. The remaining one of the three pressure-resistant divided plates 15 (shown in the upper right in FIG. 7) differs from the lower pressure-resistant divided plate 15 only in that the circumferential auxiliary plate 16 is not provided. In this point, it has the same structure as the pressure-resistant dividing plate 15 below.
この耐圧円筒部材6を図3に示す状態に配置する際には、図7に示すように、先ず下方の耐圧分割プレート15を下部に据え置き、次に残りの二枚の耐圧分割プレート15の下側の端部をそれぞれ、下方の耐圧分割プレート15の円周側補助プレート16上でスライドさせて挿入するが、円周側補助プレート16を一端部だけに設けられた一方の耐圧分割プレート15を先にカバープレート13で下方の耐圧分割プレート15に仮固定してから最後の耐圧分割プレート15を同様にして取付けると作業が容易である。   When the pressure-resistant cylindrical member 6 is arranged in the state shown in FIG. 3, as shown in FIG. 7, first, the lower pressure-resistant dividing plate 15 is first placed at the lower portion, and then the remaining two pressure-resistant dividing plates 15 are placed below. The end portions on the side are respectively slid and inserted on the circumferential auxiliary plate 16 of the lower pressure-resistant dividing plate 15, and one pressure-resistant dividing plate 15 provided only at one end portion of the circumferential auxiliary plate 16 is inserted. If the last pressure-resistant dividing plate 15 is attached in the same manner after the cover plate 13 is temporarily fixed to the pressure-resistant dividing plate 15 below, the work is easy.
なお、耐圧円筒部材6の両端部には、図8に示すように、円周方向および半径方向の補強のためにそれらの端部が外側に折返されて、補強折返し19が設けられている。   In addition, as shown in FIG. 8, the end portions of the pressure-resistant cylindrical member 6 are folded outwardly for reinforcement in the circumferential direction and the radial direction, and reinforcing folds 19 are provided.
上記の如くして可とう性遮水円筒部材4の内側に配置した耐圧円筒部材6を拡張する際には、先に三箇所の切断部30のうちの二箇所で、その両側の拡張爪受け部12の間にスペーサー11を挿入するとともに両側の拡張爪受け部12にそれらに亘るカバープレート13をボルト25で取付けて切断部30を拡張状態とし、その後に、残りの一つの切断部30の両側の拡張爪受け部12を後述の如くして拡張装置で拡張し、その切断部30にスペーサー11を挿入するとともに両側の拡張爪受け部12にそれらに亘るカバープレート13をボルト25で取付けて拡張状態を維持する。   When expanding the pressure-resistant cylindrical member 6 arranged inside the flexible water-impervious cylindrical member 4 as described above, the extension claw holders on both sides of the three cut portions 30 are firstly expanded. The spacer 11 is inserted between the portions 12 and the cover plates 13 extending to the extended claw receiving portions 12 on both sides are attached with bolts 25 to make the cutting portion 30 in an expanded state. Thereafter, the remaining one cutting portion 30 The extended claw receiving portions 12 on both sides are expanded with an expansion device as will be described later, the spacer 11 is inserted into the cut portion 30, and the cover plates 13 extending over the extended claw receiving portions 12 are attached to the extended claw receiving portions 12 with bolts 25. Maintain expanded state.
耐圧円筒部材6が二分割型で、二枚の耐圧分割プレート15で構成される場合は、図9に示すように、可とう性遮水円筒部材4の内側に配置したその耐圧円筒部材6を拡張する際に、先に二箇所の切断部30のうちの一箇所(図9では右側の箇所)で、その切断部30の両側の拡張爪受け部12の間にスペーサー11を挿入するとともに両側の拡張爪受け部12にそれらに亘るカバープレート13をボルト25で取付けて切断部30を拡張状態とし、その後に、残りの一箇所(図9では左側の箇所)の切断部30の両側の拡張爪受け部12に、拡張装置20の二つの拡張爪21を挿入し、それらの拡張爪21を先端部に固定された二本のアーム部22を揺動可能に持つ油圧ジャッキ23に例えば手動の油圧ポンプ24から油圧を供給して、それら二本のアーム部22を油圧ジャッキ23で押し広げることにより、二つの拡張爪21の間隔を広げて、切断部30の両側の拡張爪受け部12の間隔ひいては切断部30の円周方向幅を拡張し、その切断部30にスペーサー11を挿入するとともに両側の拡張爪受け部12にそれらに亘るカバープレート13をボルト25で取付けて拡張状態を維持する。なお、前述した三分割型の耐圧円筒部材6の場合も、同様にして切断部30の両側の拡張爪受け部12の間隔ひいては切断部30の円周方向幅を拡張し、その切断部30にスペーサー11を挿入するとともに両側の拡張爪受け部12にそれらに亘るカバープレート13をボルト25で取付けて拡張状態を維持する。   When the pressure-resistant cylindrical member 6 is of a two-divided type and includes two pressure-resistant divided plates 15, the pressure-resistant cylindrical member 6 disposed inside the flexible water-impervious cylindrical member 4 is arranged as shown in FIG. When expanding, the spacer 11 is inserted between the extended claw receiving portions 12 on both sides of the cutting portion 30 at one of the two cutting portions 30 (the right side in FIG. 9). The cover plate 13 extending over them is attached to the extended claw receiving part 12 with bolts 25 so that the cutting part 30 is in an expanded state, and then the remaining one part (the left part in FIG. 9) is expanded on both sides. Two expansion claws 21 of the expansion device 20 are inserted into the claw receiving portion 12, and a hydraulic jack 23 having two arm portions 22 fixed to the distal ends of the expansion claws 21 is swingable, for example, manually. Supply hydraulic pressure from the hydraulic pump 24 and The two arm portions 22 are pushed by the hydraulic jack 23 to widen the distance between the two extended claws 21, the distance between the extended claw receiving portions 12 on both sides of the cutting portion 30, and the circumferential width of the cutting portion 30. The spacer 11 is inserted into the cut portion 30 and the cover plate 13 is attached to the extended claw receiving portions 12 on both sides with bolts 25 to maintain the expanded state. In the case of the above-described three-divided pressure-resistant cylindrical member 6, the distance between the extended claw receiving portions 12 on both sides of the cutting portion 30 and the circumferential width of the cutting portion 30 are expanded in the same manner. The spacer 11 is inserted and the cover plate 13 is attached to the extended claw receiving portions 12 on both sides with bolts 25 to maintain the expanded state.
図10に示す拡張バンド10は、二枚の耐圧分割プレート15で構成され、それらのうち下方の耐圧分割プレート15には、耐圧円筒部材6の上記下方の耐圧分割プレート15と同様、円周方向の両端部に、カバープレート13を取付けるためのネジ穴18を有する二枚の短冊状厚板を互いに間隔を空けて固定してなる上記拡張爪受け部12が設けられ、さらに、この耐圧分割プレート15に対し円周方向に隣接して上方に設置されるもう一枚の耐圧分割プレート15との接合を円滑にするために、円周方向の両端部に円周側補助プレート16が設けられている。また、上方のもう一枚の耐圧分割プレート15は、円周側補助プレート16が設けられていない点のみ上記下方の耐圧分割プレート15と異なっており、他の点ではその下方の耐圧分割プレート15と同一の構成を具えている。   The expansion band 10 shown in FIG. 10 is composed of two pressure-resistant divided plates 15, and the lower pressure-resistant divided plate 15 among them has a circumferential direction similar to the lower pressure-resistant divided plate 15 of the pressure-resistant cylindrical member 6. The extended claw receiving portion 12 is provided at both ends of the plate, and is formed by fixing two strip-like thick plates having screw holes 18 for attaching the cover plate 13 with a space between each other. In order to facilitate the joining with the other pressure-resistant dividing plate 15 installed on the upper side adjacent to the circumferential direction with respect to 15, circumferential auxiliary plates 16 are provided at both ends in the circumferential direction. Yes. The other upper pressure-resistant dividing plate 15 differs from the lower pressure-resistant dividing plate 15 only in that the circumferential auxiliary plate 16 is not provided, and the other pressure-resistant dividing plate 15 is otherwise lower. It has the same configuration as
この拡張バンド10で各可とう継手本体8を管壁に押圧する際にも、図10に示すように、先ず下方の耐圧分割プレート15を下部に据え置き、次にもう一枚の耐圧分割プレート15の両端部をそれぞれ、下方の耐圧分割プレート15の円周側補助プレート16上でスライドさせて挿入するが、一端部を先にカバープレート13で下方の耐圧分割プレート15に仮固定してから他端部を取付けると作業が容易である。このようにして各可とう継手本体8の内側に拡張バンド10を配置した後、図9に示す耐圧円筒部材6の場合と同様にして拡張装置20により、切断部30の両側の拡張爪受け部12の間隔ひいては切断部30の円周方向幅を拡張し、その切断部30にスペーサー11を挿入するとともに両側の拡張爪受け部12にそれらに亘るカバープレート13をボルト25で取付けて拡張状態を維持する。この拡張した状態を、図11,12に示す。   Even when each flexible joint body 8 is pressed against the pipe wall with the extension band 10, as shown in FIG. 10, the lower pressure-resistant dividing plate 15 is first placed at the lower portion, and then another pressure-resistant dividing plate 15 is placed. The two end portions are slid onto the circumferential auxiliary plate 16 of the lower pressure-resistant dividing plate 15 and inserted. However, one end portion is temporarily fixed to the lower pressure-dividing plate 15 with the cover plate 13 before the other. If the end is attached, the operation is easy. After the expansion band 10 is arranged inside each flexible joint main body 8 in this way, the expansion claw receiving portions on both sides of the cutting portion 30 are expanded by the expansion device 20 in the same manner as the pressure-resistant cylindrical member 6 shown in FIG. 12 and the circumferential width of the cutting portion 30 is expanded, the spacer 11 is inserted into the cutting portion 30, and the cover plate 13 extending over them is attached to the extended claw receiving portions 12 on both sides with bolts 25 to expand the expanded state. maintain. This expanded state is shown in FIGS.
なお、上記可とう性遮水円筒部材4には、継ぎ目のない円筒状のものを用いたが、図13に示すように、弾性材料からなるシート26の端部のシート接合部27をジョイントテープ28で接合及びシールして円筒状としたものを用いても良い。また上述の如くして、図1に示す内面被覆止水装置3の止水可とう継手5にさらに、次の耐圧円筒部材6を取付け、続けて止水可とう継手5、耐圧円筒部材6、止水可とう継手5と順次に取付けて行くことで、連続した止水構造をとることもできる。   The flexible water-impervious cylindrical member 4 is a seamless cylindrical member. However, as shown in FIG. 13, a sheet joining portion 27 at the end of a sheet 26 made of an elastic material is used as a joint tape. A cylinder formed by joining and sealing at 28 may be used. Further, as described above, the following pressure-resistant cylindrical member 6 is further attached to the water-stoppable joint 5 of the inner surface-covered water-stop device 3 shown in FIG. A continuous water stop structure can be obtained by sequentially attaching the water stop flexible joint 5.
かかる構成を具えるこの実施例の管路の内面被覆止水装置3及びその装置を施工するこの実施例の施工方法によれば、既設管路の管1の内周面に設けられる可とう性遮水円筒部材4の両端部を、それら両端部の内周面にそれぞれ拡張バンド10で拡張固定される二つの止水可とう継手5が止水し、その可とう性遮水円筒部材4の内周面の、前記二つの止水可とう継手5の間の部位を耐圧円筒部材6が覆うので、管1内の長尺あるいは複数の漏水箇所7を一つの止水装置3で止水補修でき、地上より管路に止水装置3を搬入する場合も分割または折りたたみにより搬入が容易であり、管内溶接等の高度な技術も必要でなく取付けが容易であり、構成部材も簡素なので安価な装置とすることができる。   According to the pipe inner surface covering water stop device 3 of this embodiment having such a configuration and the construction method of this embodiment for constructing the apparatus, the flexibility provided on the inner peripheral surface of the pipe 1 of the existing pipe line. Two water-stopping flexible joints 5 that extend and fix the both ends of the water-impervious cylindrical member 4 to the inner peripheral surfaces of the both ends by the expansion band 10 respectively stop the water-impervious cylindrical member 4. Since the pressure-resistant cylindrical member 6 covers a portion of the inner peripheral surface between the two water-stopping flexible joints 5, a single water-stopping device 3 repairs the long or a plurality of water leakage points 7 in the pipe 1. Even when the water stop device 3 is carried into the pipe line from the ground, it is easy to carry in by dividing or folding, and it is easy to install without requiring advanced techniques such as in-pipe welding. It can be a device.
以上、図示例に基づき説明したが、この発明は上述の例に限定されるものでなく、特許請求の範囲の記載範囲内で適宜変更し得るものであり、例えば、耐圧円筒部材6や拡張バンドを構成する複数の耐圧分割プレートは互いに同一のものとしても良い。また、二つの止水可とう継手5は互いに同一のものとしても良い。   Although the present invention has been described based on the illustrated examples, the present invention is not limited to the above-described examples, and can be appropriately changed within the scope of the claims. For example, the pressure-resistant cylindrical member 6 and the expansion band The plurality of pressure-resistant divided plates constituting the same may be the same as each other. Also, the two water stop flexible joints 5 may be the same.
かくして本発明の管路の内面被覆止水装置及びその施工方法によれば、既設管路の内周面に設けられる可とう性遮水円筒部材の両端部を、それら両端部の内周面にそれぞれ拡張バンドで拡張固定される二つの止水可とう継手が止水し、その可とう性遮水円筒部材の内周面の、前記二つの止水可とう継手の間の部位を耐圧円筒部材が覆うので、管内の長尺あるいは複数の漏水箇所を一つの止水装置で止水補修でき、地上より管路に止水装置を搬入する場合も分割または折りたたみにより搬入が容易であり、管内溶接等の高度な技術も必要でなく取付けが容易であり、構成部材も簡素なので安価な装置とすることができる。   Thus, according to the inner surface covering water stop device of the present invention and its construction method, the both ends of the flexible water-impervious cylindrical member provided on the inner peripheral surface of the existing pipe are connected to the inner peripheral surfaces of these both ends. Two water-stopping flexible joints, each of which is expanded and fixed by an expansion band, stop water, and a portion between the two water-stopping flexible joints on the inner peripheral surface of the flexible water-blocking cylindrical member is a pressure-resistant cylindrical member. Therefore, it is possible to repair the long or multiple leak points in the pipe with one water stop device, and even when carrying the water stop device from the ground to the pipe line, it is easy to carry in by dividing or folding, and welding in the pipe Such an advanced technology is not required, and it is easy to mount, and since the constituent members are simple, an inexpensive device can be obtained.
本発明の管路の内面被覆止水装置の一実施例及び、その実施例の管路の内面被覆止水装置を施工する本発明の施工方法の一実施例を示す断面図である。It is sectional drawing which shows one Example of the construction method of this invention which constructs one Example of the inner surface covering water stop apparatus of the pipe line of this invention, and the inner surface covering water stop apparatus of the pipe line of the Example. 図1のA部を拡大して示す拡大断面図である。It is an expanded sectional view which expands and shows the A section of FIG. 図1のB−B線に沿う断面図である。It is sectional drawing which follows the BB line of FIG. (a),(b)は、上記実施例の管路の内面被覆止水装置の可とう性遮水円筒部材を示す正面図及び断面図である。(A), (b) is the front view and sectional drawing which show the flexible water shielding cylindrical member of the inner surface covering water stop apparatus of the pipe line of the said Example. (a),(b)は、上記実施例の管路の内面被覆止水装置の三分割型の耐圧円筒部材を構成する下方の耐圧分割プレートを示す正面図及び平面図である。(A), (b) is the front view and top view which show the downward pressure | voltage resistant division | segmentation plate which comprises the pressure | voltage resistant cylindrical member of the 3 division type of the inner surface covering water stop apparatus of the pipe line of the said Example. 上記下方の耐圧分割プレートを示す斜視図である。It is a perspective view which shows the said pressure | voltage resistant division | segmentation plate below. 図3に示す取付け状態にする際の上記耐圧円筒部材のセット方法を示す説明図である。It is explanatory drawing which shows the setting method of the said pressure | voltage resistant cylindrical member at the time of setting it to the attachment state shown in FIG. 上記耐圧分割プレートの組付け後の状態を示す断面図である。It is sectional drawing which shows the state after the assembly | attachment of the said pressure | voltage resistant division plate. 上記実施例の管路の内面被覆止水装置の二分割型の耐圧円筒部材の耐圧分割プレートを拡張装置で管内周面に取付ける方法を示す説明図である。It is explanatory drawing which shows the method of attaching the pressure | voltage resistant dividing plate of the pressure | voltage resistant cylindrical member of the two division | segmentation type | mold pressure-resistant cylindrical member of the inner surface covering water stop apparatus of the said Example by an expansion apparatus. 止水可とう継手を二分割型の拡張バンドで取付ける方法を示す説明図である。It is explanatory drawing which shows the method of attaching a water stop flexible joint with a 2 division type expansion band. 図10に示す取付け後の一方の止水可とう継手の状態を示す断面図である。It is sectional drawing which shows the state of one water stop flexible joint after the attachment shown in FIG. 図10に示す取付け後の他方の止水可とう継手の状態を示す断面図である。It is sectional drawing which shows the state of the other water stop flexible joint after the attachment shown in FIG. 可とう性遮水円筒部材の別の形態を示す斜視図である。It is a perspective view which shows another form of a flexible water-impervious cylindrical member. 従来の技術の一例を示す断面図である。It is sectional drawing which shows an example of a prior art. 従来の技術の他の一例を示す分解斜視図である。It is a disassembled perspective view which shows another example of a prior art.
符号の説明Explanation of symbols
1 管
2 接続部
3 管路の内面被覆止水装置
4 可とう性遮水円筒部材
5 止水可とう継手
6 耐圧円筒部材
7 クラック
8 可とう継手本体
9 止水突起
10 拡張バンド
11 スペーサー
12 拡張爪受け部
13 カバープレート
14 突出部
15 耐圧分割プレート
16 円周側補助プレート
17 管軸側補助プレート
18 ネジ穴
19 補強折返し
20 拡張装置
21 拡張爪
22 アーム部
23 油圧ジャッキ
24 油圧ポンプ
25 ボルト
26 シート
27 シート接合部
28 ジョイントテープ
30 切断部
100 連結用被覆体
101 弾性スリーブ
102 拡張保持ベース
103 突出部
200 管路
210 マンホール
211 鋼板
212 紐
213 可とう性環状体
214 固定バンド
215 補強短管
216 管軸方向端部
217 補強管
DESCRIPTION OF SYMBOLS 1 Pipe | tube 2 Connection part 3 Inner surface coating | coated water stop apparatus 4 Flexible water-proof cylindrical member 5 Water-stopper flexible joint 6 Pressure-resistant cylindrical member 7 Crack 8 Flexible joint main body 9 Water-stop protrusion 10 Expansion band 11 Spacer 12 Expansion Claw receiving part 13 Cover plate 14 Protruding part 15 Pressure-resistant dividing plate 16 Circumference side auxiliary plate 17 Pipe axis side auxiliary plate 18 Screw hole 19 Reinforcement folding 20 Expansion device 21 Expansion claw 22 Arm part 23 Hydraulic jack 24 Hydraulic pump 25 Bolt 26 Sheet 27 Sheet joint part 28 Joint tape 30 Cutting part 100 Covering body 101 Elastic sleeve 102 Expansion holding base 103 Projection part 200 Pipe line 210 Manhole 211 Steel plate 212 String 213 Flexible annular body 214 Fixed band 215 Reinforced short pipe 216 Pipe shaft Direction end 217 Reinforcement pipe

Claims (5)

  1. 既設管路の内周面を被覆して止水する管路の内面被覆止水装置において、
    前記管路の内周面に設けられる可とう性遮水円筒部材と、
    前記可とう性遮水円筒部材の両端部の内周面にそれぞれ拡張バンドで拡張固定されて前記可とう性遮水円筒部材の両端部を止水する二つの止水可とう継手を有し、前記止水可とう継手は少なくとも両端部に止水突起を有し、その止水可とう継手の一方の端部は前記可とう性遮水円筒部材を押圧して止水し、他方の端部は前記管路の内面を押圧して止水し、
    前記可とう性遮水円筒部材の内周面の、前記二つの止水可とう継手の間の部位を覆う耐圧円筒部材を有していることを特徴とする、内面被覆止水装置。
    In the inner surface covering water stop device of the pipe that covers the inner peripheral surface of the existing pipe and stops the water,
    A flexible water-impervious cylindrical member provided on the inner peripheral surface of the pipe;
    Two flexible water-tight flexible joints that are expanded and fixed to the inner peripheral surfaces of both ends of the flexible water-impervious cylindrical member with expansion bands to stop both ends of the flexible water-impervious cylindrical member , The water stop flexible joint has water stop protrusions at least at both ends, and one end of the water stop flexible joint presses the flexible water-insulating cylindrical member to stop water, and the other end. Presses the inner surface of the pipe to stop the water,
    An inner surface-covered water-stopping device comprising a pressure-resistant cylindrical member that covers a portion between the two water-stopping flexible joints on an inner peripheral surface of the flexible water-blocking cylindrical member.
  2. 前記止水可とう継手の前記拡張バンドは、
    拡張冶具で拡張される1つ以上の切断部と、
    前記切断部を拡張状態で固定するスペーサーと、
    を有することを特徴とする、請求項1に記載の内面被覆止水装置。
    The expansion band of the water stop flexible joint is:
    One or more cutting sections that are expanded with an expansion jig;
    A spacer for fixing the cutting portion in an expanded state;
    The inner surface-coated water stop device according to claim 1, wherein
  3. 前記耐圧円筒部材は、
    拡張冶具で拡張される1つ以上の切断部と、
    前記切断部を拡張状態で固定するスペーサーと、
    を有することを特徴とする、請求項1または2に記載の内面被覆止水装置。
    The pressure-resistant cylindrical member is
    One or more cutting sections that are expanded with an expansion jig;
    A spacer for fixing the cutting portion in an expanded state;
    The inner surface-coated water stop device according to claim 1, wherein the water stop device has an inner surface.
  4. 前記切断部には、その切断部の両側に固定される固定部を有するカバープレートを設けることを特徴とする、請求項2または3に記載の内面被覆止水装置。 4. The inner surface-coated water-stop device according to claim 2 , wherein the cut portion is provided with a cover plate having fixing portions fixed to both sides of the cut portion.
  5. 可とう性遮水円筒部材と止水可とう継手と耐圧円筒部材とを具え、既設管路の内周面を被覆して止水する管路の内面被覆止水装置の、管路内での施工方法において、
    前記管路の内周面に沿わせて前記可とう性遮水円筒部材を配し、
    前記可とう性遮水円筒部材の両端部の内周面に、それぞれ拡張バンドで拡張固定される二つの前記止水可とう継手をその止水可とう継手の一方の端部が前記可とう性遮水円筒部材を押圧して止水し、他方の端部が前記管路の内面を押圧して止水するように取付けて、
    前記可とう性遮水円筒部材の両端部を止水し、
    前記二つの止水可とう継手の間を覆うように前記耐圧円筒部材を取付けることを特徴とする、内面被覆止水装置の施工方法。
    An inner surface covering water stop device for a pipe that includes a flexible water-impervious cylindrical member, a water-stopping flexible joint, and a pressure-resistant cylindrical member and covers the inner peripheral surface of the existing pipe to stop the water. In the construction method,
    Arranging the flexible water shielding cylindrical member along the inner peripheral surface of the pipe,
    Two water-stopper flexible joints that are expanded and fixed by expansion bands on the inner peripheral surfaces of both ends of the flexible water-impervious cylindrical member are provided at one end of the water-stopper flexible joint. The water-impervious cylindrical member is pressed to stop water, and the other end is attached to press the inner surface of the pipe to stop water ,
    Stop water at both ends of the flexible water-impervious cylindrical member,
    The construction method of an inner surface-covered water stop device, wherein the pressure-resistant cylindrical member is attached so as to cover between the two water stop flexible joints.
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