JP4170718B2 - Connecting mass repair method using connecting mass repair material - Google Patents

Connecting mass repair method using connecting mass repair material Download PDF

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JP4170718B2
JP4170718B2 JP2002283358A JP2002283358A JP4170718B2 JP 4170718 B2 JP4170718 B2 JP 4170718B2 JP 2002283358 A JP2002283358 A JP 2002283358A JP 2002283358 A JP2002283358 A JP 2002283358A JP 4170718 B2 JP4170718 B2 JP 4170718B2
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mass
connection
connection mass
repair material
repair
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JP2004116210A (en
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和義 谷山
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有限会社幸和道路管理
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【0001】
【発明の属する技術分野】
本発明は、接続マス補修材を用いた接続マスの補修工法に関する。
【0002】
【従来の技術】
従来、個別住居の便所等からの汚水を地中の本管に排出する際、地中に埋設した接続マスと称する容器を通過させ、接続マスの側面に設けた枝管を経て本管に流出するようにしている。この接続マスも長年の使用や地震等により、内部に亀裂、破損等の損傷を生じる。
【0003】
特に、図2に示す接続マスとその側面に連結した枝管の結合部である管口は、地震等による荷重作用や長年の使用で亀裂が生じることが多く、従来は、亀裂又は破損部分にコンクリートや溶剤等の充填材を詰め込んでの部分修理、又は布設替えする等の処置がとられていた。
また、これらの補修作業は、作業者が汚物の付着した接続マスの内部に直接手を触れて行うものであり、補修箇所によっては手が届かない場合もある。すなわちこの補修作業は、非常に汚れ易く多大な労力を要する。
更に、抜本的補修である接続マス本体を敷設替えする方法は、地盤を掘削する大掛かりな工事となり、敷設替えは容易ではない。
【0004】
そこで近年、上記接続マス等の管口補修方法として、ガラス繊維と不織り布を積層した伸縮性を有する管口補修材を用いて、この補修材を巻き付けた管口補修機を接続マス内の管口損傷部まで導入して、その損傷部の内周面に圧着、硬化するFRP工法と呼ばれる補修方法がある(例えば、特許文献1参照)。
【0005】
【特許文献1】
特願平9−13478号公報(第6頁、第1図)
【0006】
【発明が解決しようとする課題】
上記のFRP工法によって補修する方法は、あくまでも接続マスとそれに結合される枝管との継合部である管口を主たる対象とした部分補修方法であり、接続マス内周面とその底部を一度に補修する方法ではなかった。
また、図2に示す接続マス内のように、底部には汚水溜まりを防止する逆アーチ状のインバートが設けられている。そのため底部の形状は複雑な場合が多く、その起伏に柔軟に沿う接続マス補修材が必要となる。
【0007】
本発明は、上記の事情に鑑みてなされたもので、接続マス内部に生じた亀裂或いは破損等の補修において、接続マスの内周面と底部を一度に補修できる接続マス補修材を用いた施工方法を提供することを目的とする。
【0008】
【課題を解決するための手段】
本発明は、接着剤を含浸可能なシート材を接続マスの内周面にほぼ相当する筒形状に形成してなる筒状部と、前記シート材を前記接続マスの底面にほぼ相当する平面形状に形成してなる底面部であって前記筒状部の一端開口部を閉塞している底面部とを備えている接続マス補修材を用いて行う接続マスの補修工法であって、次の各工程(a)〜(d)を含むことを特徴とする
【0009】
(a) 接続マスの内空部に挿入可能な膨張体の外周面に、接着剤を含浸させた状態で接続マス補修材を被覆する第一工程
(b) 前記接続マス補修材が被覆された膨張体を、前記接続マスの内部に挿入する第二工程
(c) 前記膨張体を抜け止めして前記接続マス内で膨張させることにより、前記接続マス補修材の前記筒状部を前記接続マスの内周面に圧着すると同時に、同補修材の前記底面部を、インバートを含む前記接続マスの底面に圧着する第三工程
(d) 前記膨張体を収縮させて前記接続マスから抜き取る第四工程
【0010】
上記の発明によれば、接続マス内部に生じた亀裂或いは破損等の補修は、前記接続マス補修材を膨張体に挿着して前記補修工法により作業を行うことで、接続マスの内周面とそのインバートを含む底面を一度に補修することができる。
これにより、作業者は汚水の流れる接続マス内部に直接触れることなく、接続マスの地上部より作業を行うことができ、係る作業の衛生面及び安全性の向上にも寄与する。
更に、本発明に係る接続マス補修材は、上記補修工法に使用するものであって、前記底面部が、前記接続マスの底面に設けられたインバートに沿うことができる伸縮性を有している
それにより、補修材の底面部が接続マスの底面のインバートに柔軟に沿うことができるので、底面にインバートを有する接続マスの場合であっても、一度の圧着工程(第三工程)のみで補修材の施工を完了することができる。
【0011】
【発明の実施の形態】
以下、図面を参照しつつ、本発明の実施形態を説明する。
図1(a)は本発明に係る接続マス補修材1を展開した状態を示し、(b)は接続マス補修材1を使用する状態に形成したものを示す。また、図2はこの接続マス補修材1を利用して補修する接続マス2を示している。
【0012】
図2に示すように、この接続マス2は、円筒形状の内周面8と、汚水溜まりを防止するために設けられた逆アーチ状の傾斜部22A,22Aと、前記傾斜部22A,22A間に設けられた円弧形状の溝22Bとで成るインバート22を備えている。
更に、前記接続マス2には、前記インバート22付近側面に枝管23A,23Aが接合されている。前記接続マス2は、コンクリート製、塩化ビニル製等のものがある。
【0013】
図1(b)に示すように、本実施形態の接続マス補修材1は、接着剤を含浸可能なシート材を接続マス2の内周面21にほぼ相当する筒形状に形成してなる筒状部11と、前記シート材を前記接続マス2のインバート22にほぼ相当する平面形状に形成されかつ前記筒状部11の一端開口部を閉塞している底面部12とを備えている。
この接続マス補修材1は、図1(a)に示す展開図のように、展開形状が長方形である前記筒状部11の長辺に半円形状の半円底面部12A,12Aの円弧外周縁を縫い付け、その長方形の筒状部11の短辺同士を互いに縫い付けるとともに、半円形状の半円底面部12A,12Aの直線縁同士を互いに縫い付けることにより、図1(b)に示す円筒状に形成されている。
【0014】
また、前記接続マス補修材1は、前記接続マス2に接触する外層側に不織布13が設けられると共に、その内装側にガラス繊維14が積層された二層構造となっている。更に前記接続マス補修材1は、接続マス2を補修する直前に、その外周面にFRP剤を主成分とする周知の熱硬化性接着剤が塗布される。
この接着剤は、不織布13とガラス繊維14とを接着すると同時に、接続マス補修材1の各部を接続マス2の内周面21と、インバート22に接着させるためのものである。
【0015】
また、接続マス補修材1は、前記底面部12が、接続マス2のインバート22が成す起伏に沿うことができるよう伸縮性を有する。前記底面部12は、伸縮性を有した不織布13と伸縮自在に編んだガラス繊維14とを重ね合わせたもので構成されている。
【0016】
図3は、接続マス2に接続マス補修材1を圧着させるために用いる接続マス補修機3を示す。
この接続マス補修機3は、ベースとなる天板31と、この天板31に内部の気密性を保持するよう結合された膨張体33と、前記膨張体33の前記天板31側に設けられた接続マス補修機3を接続マス2に位置固定する止め輪32と、前記膨張体33内部に設けられた熱源としてのヒータ34と、前記天板31に設けられた前記膨張体33を膨張収縮させるためのエアを送排気するエア出入口35と、前記天板31に設けられた前記ヒータ34の温度調整を行うコントローラ(不図示)を接続する接続端子36と、前記天板31に設けられた移動させる時に作業者が掴むためのハンドル37を備えている。
【0017】
次に、上記接続マス補修材1及び接続マス補修機3を用いた接続マス2の補修工法を図4(a)〜(d)を用いて示す。
まず、図4(a)に示すように、前記接続マス補修機3の外周面に、接続マス補修材1を周知の熱硬化性接着剤を含浸させた状態で、膨張体33の下端から挿入し、接続マス補修材1の底面部12が膨張体33の下端に当接するまで挿入する。
挿入は、接続マス補修機3を枕木等の上に上下逆の状態で載せ、接続マス補修材1を挿入し易いようにして行うとよい。
【0018】
次に、図4(b)に示すように、前記接続マス補修材1が被覆された接続マス補修機3を接続マス2の上方より挿入する。
挿入は、接続マス補修機3の膨張体33の下端が接続マス2のインバート22に当接するまで行う。接続マス2への挿入は、作業者が接続マス補修機3のハンドル36を掴み、インバート22に当接するまで緩挿する。
【0019】
その後、図4(c)に示すように、地上のコンプレッサー(不図示)からエアをエア出入口35より送給する。この膨張体33内にエアを送り込み、同膨張体33を前記接続マス2内で膨張させる。
この時、膨張体33の膨張により止め輪32が接続マス2の内周面21に押圧される。この止め輪32は、押圧されることにより、膨張体33が膨張する際に接続マス2のインバート22より受ける接続マス2の上方向の反力を受け止め、接続マス補修機3が接続マス2から抜けるのを防止する機能を果たす。
【0020】
また、膨張体33の膨張と同時に、前記接続マス補修材1の筒状部11を前記接続マス2の内周面21に圧着し、かつ同補修材1の底面部12を接続マス2のインバート22に圧着する。この状態で接続マス補修機3のヒータ34により熱を、膨張体33を介して接続マス補修材1に加える。
この加えられた熱により熱硬化性接着剤が硬化し、接続マス補修材1は接続マス2の内周面21及びインバート22に接着される。この接着時のヒータ34の温度調整は、接続端子36に接続されたコントローラによって行う。
【0021】
そして接着した後、ヒータ34による熱の供給を止め、膨張体33内部のエアをエア出入口35より抜き出す。このエアの抜き出しにより膨張体33は収縮し、接続マス補修材1から分離され、それと同時に接続マス補修機3の止め輪32が接続マス2の内周面21から離隔する。
その後、接続マス2の上部より接続マス補修機3を抜き取れば、図4(d)に示すように、接続マス2の補修が完了する。
【0022】
上記のように、接続マス補修材1及び接続マス補修機2を用い、前記補修工法に沿って接続マス2を補修することにより、接続マス2の内周面21とインバート22を一度に補修することができる。
また、接続マス補修材1の底面部12は、伸縮性を有するものが好ましい。この底面部12に伸縮性を有する接続マス補修材1は、接続マス2のインバート22の成す複雑な起伏へも柔軟に沿うことができる。また、同接続マス補修材1は、様々なインバート22の形状を有する接続マス2へ適用することができる。
上述した本発明の実施形態によれば、作業者が直接接続マス2内部に触れることなく接続マス2の地上部より作業を行うことができ、係る作業の衛生面及び安全性の向上にも寄与する。
【0023】
なお、本発明は前記した実施形態に限定されるものではない。
例えば、接続マス補修材1は種々の形状に形成することができ、補修すべき接続マス2の形状に応じて形成するとよい。
また、接続マス補修機3を使用する際には、接続マス補修材1の付着箇所となる接続マス2の内面を予め高圧水で洗浄しておくのが望ましい。
また、接続マス補修材1を接続マス2に接着する接着剤は、光硬化、自然硬化する接着剤でもよい。
【0024】
【発明の効果】
以上説明したように、本発明によれば、接続マス内部に生じた亀裂或いは破損等の補修において、作業者が直接接続マス内部に触れることなく、接続マスの内周面とインバートを一度の圧着工程(第三工程)のみで補修することができ、かかる作業の衛生面及び安全性の向上にも寄与することができる。
【図面の簡単な説明】
【図1】 (a)は本発明の接続マス補修材の展開図であり、(b)は本発明の接続マス補修材の斜視図である。
【図2】 インバートを有した接続マスの斜視図である。
【図3】 接続マス補修機の斜視図である。
【図4】 本発明の接続マス補修材を利用した接続マスの補修工法である。
【符号の説明】
1 接続マス補修材
11 円筒部(筒状部)
12 底面部
12A 半円底面部
13 不織布
14 ガラス繊維
2 接続マス
21 内周面
22 底面(インバート)
22A 傾斜部
22B 溝
23 枝管
3 接続マス補修機
31 天板
32 止め輪
33 膨張体
34 ヒータ
35 エア出入口
36 接続端子
37 ハンドル
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connection mass repair method using a connection mass repair material .
[0002]
[Prior art]
Conventionally, when draining sewage from an individual toilet or the like to the main pipe in the ground, it passes through a container called a connection mass buried in the ground and flows out to the main pipe through a branch pipe provided on the side of the connection mass. Like to do. This connecting mass also causes damage such as cracks and breakage inside due to long-term use and earthquakes.
[0003]
In particular, the connection port shown in FIG. 2 and the connection port of the branch pipe connected to the side face thereof are often cracked by a load action due to an earthquake or the like and used for many years. Measures were taken such as partial repair by filling with fillers such as concrete or solvent, or changing the cloth.
In addition, these repair operations are performed by an operator by directly touching the inside of the connection mass on which the filth is adhered, and may not be reachable depending on the repair location. That is, this repair work is very easy to get dirty and requires a lot of labor.
Furthermore, the method of laying down the connecting mass main body, which is fundamental repair, is a large-scale construction for excavating the ground, and laying up is not easy.
[0004]
Therefore, in recent years, as a method of repairing the above-mentioned connection mass and the like, using a stretchable tube-port repair material in which glass fiber and non-woven cloth are laminated, a pipe repair machine wound with this repair material is installed in the connection mass. There is a repair method called an FRP method that introduces even the damaged part of the tube opening and press-bonds and cures the inner peripheral surface of the damaged part (for example, see Patent Document 1).
[0005]
[Patent Document 1]
Japanese Patent Application No. 9-13478 (page 6, FIG. 1)
[0006]
[Problems to be solved by the invention]
The method of repairing by the FRP method described above is a partial repair method mainly intended for a pipe opening that is a joint portion between a connection mass and a branch pipe coupled to the connection mass. It was not a way to repair.
Further, as in the connecting mass shown in FIG. 2, an inverted arch-shaped invert for preventing sewage accumulation is provided at the bottom. Therefore, the shape of the bottom is often complicated, and a connecting mass repair material that flexibly follows the undulations is required.
[0007]
The present invention has been made in view of the above circumstances, and in the repair such as cracks or breakage occurring inside the connection mass, the construction using the connection mass repair material capable of repairing the inner peripheral surface and the bottom of the connection mass at once. It aims to provide a method.
[0008]
[Means for Solving the Problems]
This onset Ming, and corresponds approximately cylindrical shape formed cylindrical portion formed by the inner peripheral surface of the connecting mass of impregnable sheet material an adhesive plane corresponds approximately to the sheet material to the bottom surface of the connecting mass a repairing method of connecting mass performed using connection mass repair material a bottom portion formed by a shape and a, and a bottom portion which closes the end opening of the cylindrical portion, following Each of the steps (a) to (d) is included .
[0009]
(A) The first step of coating the connection mass repair material in a state of being impregnated with the adhesive on the outer peripheral surface of the inflatable body that can be inserted into the inner space of the connection mass (b) The connection mass repair material is coated the expansion body is expanded in the second step (c) said connecting mass and retained the expanding body to be inserted into the interior of the connecting mass Rukoto, the connecting the cylindrical portion of the connecting mass repair material simultaneously crimping Then the inner peripheral surface of the mass, fourth extracting the bottom portion of the repair material, the third step; (d) connecting the mass to contract the expandable body for crimping the bottom surface of the connecting mass including invert Process [0010]
According to the above invention, the repair such as a crack or breakage generated in the connection mass is performed by inserting the connection mass repair material into the expansion body and performing the work by the repair method, thereby connecting the inner peripheral surface of the connection mass. And the bottom surface including the invert can be repaired at once.
Thereby, an operator can work from the ground portion of the connection mass without directly touching the inside of the connection mass through which the sewage flows, which contributes to improvement of hygiene and safety of the work.
Furthermore, the connection mass repair material according to the present invention is used for the repair method described above, and has a stretchability that allows the bottom surface portion to follow an invert provided on the bottom surface of the connection mass. .
As a result , the bottom surface of the repair material can flexibly follow the invert on the bottom surface of the connection mass, so that even in the case of a connection mass having an invert on the bottom surface, repair is performed only by a single crimping process (third process). Construction of the material can be completed.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1A shows a state where the connection mass repair material 1 according to the present invention is developed, and FIG. 1B shows a state where the connection mass repair material 1 is used. FIG. 2 shows a connection mass 2 to be repaired using the connection mass repair material 1.
[0012]
As shown in FIG. 2, the connection mass 2 includes a cylindrical inner peripheral surface 8, an inverted arch-shaped inclined portion 22A, 22A provided to prevent sewage accumulation, and the inclined portion 22A, 22A. And an invert 22 formed of an arc-shaped groove 22B provided in the inner surface.
Further, branch pipes 23 </ b> A and 23 </ b> A are joined to the connection mass 2 on the side surface near the invert 22. The connection mass 2 may be made of concrete, vinyl chloride or the like.
[0013]
As shown in FIG. 1B, the connection mass repair material 1 of the present embodiment is a cylinder formed by forming a sheet material that can be impregnated with an adhesive into a cylindrical shape substantially corresponding to the inner peripheral surface 21 of the connection mass 2. And a bottom surface portion 12 in which the sheet material is formed in a planar shape substantially corresponding to the invert 22 of the connection mass 2 and closes one end opening of the cylindrical portion 11.
This connection mass repair material 1 has a semicircular bottom surface portion 12A, 12A outside the arc of the semicircular shape on the long side of the tubular portion 11 whose development shape is rectangular as shown in the development view shown in FIG. FIG. 1 (b) shows that the peripheral edges are sewn, the short sides of the rectangular cylindrical portion 11 are sewn together, and the straight edges of the semicircular semicircular bottom surface portions 12A and 12A are sewn together. It is formed in the cylindrical shape shown.
[0014]
The connection mass repair material 1 has a two-layer structure in which a nonwoven fabric 13 is provided on the outer layer side that contacts the connection mass 2 and glass fibers 14 are laminated on the interior side. Further, immediately before the connection mass 2 is repaired, the connection mass repair material 1 is coated with a known thermosetting adhesive mainly composed of an FRP agent on the outer peripheral surface thereof.
This adhesive is for bonding the non-woven fabric 13 and the glass fiber 14 to each part of the connection mass repair material 1 to the inner peripheral surface 21 of the connection mass 2 and the invert 22 at the same time.
[0015]
Further, the connecting mass repair material 1 has elasticity so that the bottom surface portion 12 can follow the undulation formed by the invert 22 of the connecting mass 2. The bottom surface portion 12 is constituted by superposing a stretchable nonwoven fabric 13 and a stretchable knitted glass fiber 14.
[0016]
FIG. 3 shows a connection mass repairing machine 3 used for crimping the connection mass repair material 1 to the connection mass 2.
The connecting mass repairing machine 3 is provided on the top plate 31 side of the expansion body 33, the expansion body 33 coupled to the top panel 31 so as to maintain internal airtightness, and the top panel 31 serving as a base. A retaining ring 32 for fixing the connection mass repairing machine 3 to the connection mass 2, a heater 34 as a heat source provided inside the expansion body 33, and the expansion body 33 provided on the top plate 31 are expanded and contracted. An air inlet / outlet port 35 for supplying / exhausting air to be connected, a connection terminal 36 for connecting a controller (not shown) for adjusting the temperature of the heater 34 provided on the top plate 31, and the top plate 31. A handle 37 is provided for the operator to grasp when moving.
[0017]
Next, a repair method for the connection mass 2 using the connection mass repair material 1 and the connection mass repair machine 3 will be described with reference to FIGS.
First, as shown in FIG. 4A, the connection mass repair material 1 is inserted from the lower end of the expansion body 33 in a state where the connection mass repair material 1 is impregnated with a known thermosetting adhesive on the outer peripheral surface of the connection mass repair machine 3. And it inserts until the bottom face part 12 of the connection mass repair material 1 contacts the lower end of the expansion body 33.
The connection mass repairing machine 3 may be placed on a sleeper or the like upside down so that the connection mass repair material 1 can be easily inserted.
[0018]
Next, as shown in FIG. 4B, the connection mass repairing machine 3 covered with the connection mass repair material 1 is inserted from above the connection mass 2.
The insertion is performed until the lower end of the expansion body 33 of the connection mass repairing machine 3 comes into contact with the invert 22 of the connection mass 2. Insertion into the connection mass 2 is performed until the operator grasps the handle 36 of the connection mass repair machine 3 and abuts against the invert 22.
[0019]
Then, as shown in FIG.4 (c), air is supplied from the air compressor 35 (not shown) from the air inlet / outlet 35. FIG. Air is sent into the expansion body 33 to expand the expansion body 33 in the connection mass 2.
At this time, the retaining ring 32 is pressed against the inner peripheral surface 21 of the connection mass 2 by the expansion of the expansion body 33. The retaining ring 32 receives the upward reaction force of the connecting mass 2 received from the invert 22 of the connecting mass 2 when the expansion body 33 expands by being pressed, and the connecting mass repairing machine 3 is connected to the connecting mass 2 from the connecting mass 2. It fulfills the function of preventing it from coming off.
[0020]
Simultaneously with the expansion of the expansion body 33, the tubular portion 11 of the connection mass repair material 1 is crimped to the inner peripheral surface 21 of the connection mass 2, and the bottom surface portion 12 of the repair material 1 is inverted to the connection mass 2. Crimp to 22 In this state, heat is applied to the connection mass repair material 1 through the expansion body 33 by the heater 34 of the connection mass repair machine 3.
The applied heat cures the thermosetting adhesive, and the connection mass repair material 1 is bonded to the inner peripheral surface 21 and the invert 22 of the connection mass 2. The temperature adjustment of the heater 34 at the time of bonding is performed by a controller connected to the connection terminal 36.
[0021]
After the bonding, the supply of heat by the heater 34 is stopped, and the air inside the expansion body 33 is extracted from the air inlet / outlet 35. The expansion body 33 contracts by this air extraction and is separated from the connection mass repair material 1, and at the same time, the retaining ring 32 of the connection mass repair machine 3 is separated from the inner peripheral surface 21 of the connection mass 2.
Then, if the connection mass repair machine 3 is extracted from the upper part of the connection mass 2, repair of the connection mass 2 will be completed as shown in FIG.4 (d).
[0022]
As described above, by using the connection mass repair material 1 and the connection mass repair machine 2 to repair the connection mass 2 along the repair method, the inner peripheral surface 21 and the invert 22 of the connection mass 2 are repaired at a time. be able to.
Further, the bottom surface portion 12 of the connection mass repair material 1 preferably has stretchability. The connecting mass repair material 1 having elasticity on the bottom surface portion 12 can flexibly follow complicated undulations formed by the inverts 22 of the connecting mass 2. The connection mass repair material 1 can be applied to the connection mass 2 having various invert 22 shapes.
According to the above-described embodiment of the present invention, an operator can work from the ground portion of the connection mass 2 without directly touching the inside of the connection mass 2, which contributes to improvement of hygiene and safety of such work. To do.
[0023]
The present invention is not limited to the embodiment described above.
For example, the connection mass repair material 1 can be formed in various shapes, and may be formed according to the shape of the connection mass 2 to be repaired.
Moreover, when using the connection mass repair machine 3, it is desirable to wash | clean beforehand the inner surface of the connection mass 2 used as the adhesion location of the connection mass repair material 1 with a high pressure water.
The adhesive for adhering the connection mass repair material 1 to the connection mass 2 may be an adhesive that is photocured or naturally cured.
[0024]
【The invention's effect】
As described above, according to the present invention, in the repair of cracks or damage caused to the internal connection mass, without the operator touches the internal direct connection trout, crimping once the inner peripheral surface and invert the connection trout It can be repaired only in the process (third process), and can contribute to the improvement of hygiene and safety of such work.
[Brief description of the drawings]
FIG. 1A is a development view of a connection mass repair material of the present invention, and FIG. 1B is a perspective view of a connection mass repair material of the present invention.
FIG. 2 is a perspective view of a connection mass having an invert.
FIG. 3 is a perspective view of a connection mass repair machine.
FIG. 4 is a connection mass repair method using the connection mass repair material of the present invention.
[Explanation of symbols]
1 Connecting mass repair material 11 Cylindrical part (tubular part)
12 bottom surface portion 12A semicircular bottom surface portion 13 non-woven fabric 14 glass fiber 2 connection mass 21 inner peripheral surface 22 bottom surface (invert)
22A Inclined portion 22B Groove 23 Branch pipe 3 Connecting mass repair machine 31 Top plate 32 Retaining ring 33 Expanding body 34 Heater 35 Air inlet / outlet 36 Connection terminal 37 Handle

Claims (1)

接着剤を含浸可能なシート材を接続マスの内周面にほぼ相当する筒形状に形成してなる筒状部と、前記シート材を前記接続マスの底面にほぼ相当する平面形状に形成してなる底面部であって前記筒状部の一端開口部を閉塞している底面部と、を備えている接続マス補修材を用いて行う接続マスの補修工法であって、次の各工程(a)〜(d)を含むことを特徴とする接続マスの補修工法。
(a) 前記接続マスの内空部に挿入可能な膨張体の外周面に、接着剤を含浸させた状態で前記接続マス補修材を被覆する第一工程
(b) 前記接続マス補修材が被覆された膨張体を、前記接続マスの内部に挿入する第二工程
(c) 前記膨張体を抜け止めして前記接続マス内で膨張させることにより、前記接続マス補修材の前記筒状部を前記接続マスの内周面に圧着すると同時に、同補修材の前記底面部を、前記接続マスの底部に設けられたインバートに圧着する第三工程
(d) 前記膨張体を収縮させて前記接続マスから抜き取る第四工程
A cylindrical portion formed by forming a sheet material that can be impregnated with an adhesive into a cylindrical shape substantially corresponding to the inner peripheral surface of the connection mass; and a sheet shape that is substantially equivalent to the bottom surface of the connection mass. A connecting mass repairing method using a connecting mass repairing material provided with a bottom surface portion that is a bottom surface portion that closes one end opening of the cylindrical portion, and includes the following steps (a ) To (d). A connection mass repairing method characterized by comprising:
(A) The first step of coating the connection mass repair material in a state where the outer peripheral surface of the inflatable body that can be inserted into the inner space of the connection mass is impregnated with the adhesive (b) The coating of the connection mass repair material The second step of inserting the expanded body into the connection mass (c) The cylindrical portion of the connection mass repair material is expanded by retaining the expansion body and expanding the expansion body in the connection mass. At the same time as the pressure is applied to the inner peripheral surface of the connecting mass, the third step of pressing the bottom surface portion of the repair material to the invert provided on the bottom portion of the connecting mass (d) From the connecting mass by contracting the expansion body The fourth process to extract
JP2002283358A 2002-09-27 2002-09-27 Connecting mass repair method using connecting mass repair material Expired - Fee Related JP4170718B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002283358A JP4170718B2 (en) 2002-09-27 2002-09-27 Connecting mass repair method using connecting mass repair material

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Application Number Priority Date Filing Date Title
JP2002283358A JP4170718B2 (en) 2002-09-27 2002-09-27 Connecting mass repair method using connecting mass repair material

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JP2004116210A JP2004116210A (en) 2004-04-15
JP4170718B2 true JP4170718B2 (en) 2008-10-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015007339A (en) * 2013-06-25 2015-01-15 日之出水道機器株式会社 Repair device and repair technique for invert and straight wall part of underground structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0823173B2 (en) * 1992-03-04 1996-03-06 筒中プラスチック工業株式会社 Method of repairing existing human hole in sewer
JPH07127084A (en) * 1993-11-09 1995-05-16 Tsutsunaka Plast Ind Co Ltd Existing manhole repairing method in sewage works
JP2906331B2 (en) * 1995-06-30 1999-06-21 博敏 前田 Home mass mouth repair machine
JPH09268639A (en) * 1996-04-01 1997-10-14 Asahi Tec Corp Backing method of manhole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015007339A (en) * 2013-06-25 2015-01-15 日之出水道機器株式会社 Repair device and repair technique for invert and straight wall part of underground structure

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