JP2932265B2 - Manhole repair method and manhole repair material - Google Patents
Manhole repair method and manhole repair materialInfo
- Publication number
- JP2932265B2 JP2932265B2 JP10023746A JP2374698A JP2932265B2 JP 2932265 B2 JP2932265 B2 JP 2932265B2 JP 10023746 A JP10023746 A JP 10023746A JP 2374698 A JP2374698 A JP 2374698A JP 2932265 B2 JP2932265 B2 JP 2932265B2
- Authority
- JP
- Japan
- Prior art keywords
- manhole
- repair material
- plastic
- repair
- repairing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 title claims description 216
- 238000000034 method Methods 0.000 title claims description 45
- 229920005989 resin Polymers 0.000 claims description 59
- 239000011347 resin Substances 0.000 claims description 59
- 239000004033 plastic Substances 0.000 claims description 53
- 229920003023 plastic Polymers 0.000 claims description 53
- 239000007788 liquid Substances 0.000 claims description 33
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000003566 sealing material Substances 0.000 claims 2
- 230000001276 controlling effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 26
- 239000003822 epoxy resin Substances 0.000 description 14
- 229920000647 polyepoxide Polymers 0.000 description 14
- 239000004593 Epoxy Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000011151 fibre-reinforced plastic Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明はマンホール内をライ
ニングして補修するマンホール補修方法及びこの補修方
法に用いるのに特に適したマンホール補修材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manhole repair method for repairing a manhole by lining the inside of the manhole and a manhole repair material particularly suitable for use in the repair method.
【０００２】[0002]
【従来の技術】マンホール内面の補修方法としては、特
許第２５８３８３１号公報に記載されているように、外
面に粘着層を有する筒状のプラスチック製補修材をマン
ホール内に挿入し、その後、マンホール内面に粘着層を
押し付けてこの補修材を貼り付けるものが知られてい
る。また、特許第２６８７０９６号公報に記載されてい
るように、筒状のプラスチック製補修材をマンホール内
に配置し、その後、マンホール内面とこの補修材との狭
い隙間に液状のライニング用硬化性樹脂注入材を充填し
て硬化させるものも知られている。2. Description of the Related Art As a method for repairing the inner surface of a manhole, as described in Japanese Patent No. 2583831, a tubular plastic repair material having an adhesive layer on the outer surface is inserted into the manhole, and then the inner surface of the manhole is repaired. There is known a device in which an adhesive layer is pressed against the adhesive and the repair material is attached. As described in Japanese Patent No. 2687096, a tubular plastic repair material is placed in a manhole, and then a liquid lining curable resin is injected into a narrow gap between the manhole inner surface and the repair material. It is also known that a material is filled and cured.
【０００３】[0003]
【発明が解決しようとする課題】このような補修方法、
特に硬化性樹脂材を用いる特許第２６８７０９６号公報
記載の補修方法を用いることにより、内側面が平滑であ
るライニング層を簡単に形成してマンホール内面の直壁
部及び斜壁部を確実に補修することができるのである
が、マンホール内面の底面部（インバート部）や、多く
のマンホール構造において構成されている中間天井部
（スラブ部）をこの補修方法で補修するには多大の補修
工数が必要となるので、多くの場合、底面部や中間天井
部の補修はエポキシパテを塗布することにより行われて
いる。したがって、補修後の見栄えが良くないし、また
十分な止水効果を確保できない場合も少なくない。[0005] Such a repair method,
In particular, by using the repair method described in Japanese Patent No. 2687096 using a curable resin material, a lining layer having a smooth inner surface can be easily formed, and the straight wall portion and the inclined wall portion on the inner surface of the manhole can be reliably repaired. Although it can be used, it takes a lot of man-hours to repair the bottom part (inverted part) of the inner surface of the manhole and the intermediate ceiling part (slab part) composed of many manhole structures by this repair method. Therefore, in many cases, the repair of the bottom portion and the intermediate ceiling portion is performed by applying an epoxy putty. Therefore, the appearance after the repair is not good, and a sufficient water stopping effect cannot be secured in many cases.
【０００４】そこで本発明は、接着性及び亀裂等内への
浸透性に優れた硬化性樹脂を用いて、マンホール内面の
どのような箇所に対しても、十分な補修効果を有し、か
つ内面が平滑であるライニング層を簡単に形成すること
のできるマンホール補修方法及びこの方法に用いるのに
適したマンホール補修材の提供を目的とする。[0004] Therefore, the present invention uses a curable resin excellent in adhesiveness and penetration into cracks and the like, has a sufficient repair effect on any part of the inner surface of the manhole, and has an inner surface. It is an object of the present invention to provide a manhole repair method capable of easily forming a smooth lining layer and a manhole repair material suitable for use in this method.
【０００５】[0005]
【課題を解決するための手段】この目的を達成するた
め、本発明のマンホール補修方法は、プラスチック製補
修材をマンホール内面に貼り付けてマンホール内を補修
するマンホール補修方法であって、硬化性樹脂を含んだ
圧縮可能な多孔質層を介し、かつ圧縮量規制手段によっ
てこの多孔質層の圧縮量を規制して前記プラスチック製
補修材を前記マンホール内面に押圧し、このプラスチッ
ク製補修材を、前記硬化性樹脂が硬化するまで押圧した
状態に維持して前記マンホール内面に貼り付けるもので
ある。本発明はより具体的には、硬化性樹脂を含んだ圧
縮可能な多孔質層が外面側に、すなわちマンホール内面
に貼り付けられる側に形成されているプラスチック製補
修材を準備し、前記多孔質層が、圧縮量規制手段によっ
て圧縮量が規制されて前記マンホール内面に押し付けら
れるように、前記プラスチック製補修材を押圧し、この
プラスチック製補修材を、前記硬化性樹脂が硬化するま
で押圧した状態に維持して前記マンホール内面に貼り付
けるものとなる。補修材は多くの場合、外面に多孔質層
を備えたプラスチック製の、特に好ましくは繊維強化プ
ラスチック製の薄肉の補修材本体を形成しておき、補修
現場であるいは工場内でこの多孔質層に液状の又は流動
性を有する硬化性樹脂を含ませることにより構成される
が、補修材本体自体も補修現場で形成される場合もあ
る。硬化性樹脂としては熱硬化型のものを用いることも
でき、例えば補修材を、プラスチック製の袋状又は有底
筒状の補修材本体の外面に熱硬化性樹脂を含んだ多孔質
層を備えたものとして構成し、補修材本体の内側から加
圧加熱流体でこの補修材を押圧して外面側に形成された
多孔質層をマンホール内面に押し付けるとともに、この
多孔質層に含浸された熱硬化性樹脂を硬化させるという
補修方法も本願発明の対象である。硬化性樹脂としては
補修現場で特別の硬化機構を用いる必要のない常温硬化
型のものが好ましく、例えばエポキシ樹脂、アクリル樹
脂、ウレタン樹脂、ポリエステル樹脂又はシリコーン樹
脂などを用いることができ、このなかでは特にエポキシ
樹脂が取扱い性に優れるので好ましい。多孔質層に用い
られる多孔質体は柔軟であることが好ましく、押圧され
ると適当に圧縮するものであることが必要である。そし
て、多孔質体が適当量圧縮されるようにこの補修材をマ
ンホール内面に押し付け、硬化性樹脂が十分に硬化する
まで押圧した状態、言い換えると多孔質体が圧縮された
状態を維持する。このようにすることにより、多孔質体
からはみ出した硬化性樹脂が亀裂等の奥深くまで浸透し
て十分な補修効果を達成できる。ここで多孔質体を圧縮
しすぎると、補修材本体にうねりが生じるおそれがあ
り、また補修材本体の表面側に硬化性樹脂がはみ出して
しまう事態も発生する。したがって、多孔質体の圧縮量
を規制する規制手段を構成しておく必要がある。補修材
本体の外面に複数個の凸部を設け、多孔質体をこの凸部
を覆って補修材本体の外面に全体的に設けるという規制
手段は有効である。凸部以外の部分に設けられている多
孔質体は、凸部の高さに凸部外面に設けられている大き
く圧縮された多孔質体の厚さを加えた厚さまで圧縮され
ることとなる。また、補修材本体を外面がくぼんだ断面
コ字状体に形成し、補修材本体の外面のくぼみの深さよ
り大きい厚みを有している多孔質体を補修材本体の外面
のくぼみ内に納めるという規制手段も有効である。多孔
質体は最大でくぼみの深さと等しい厚さまで圧縮され
る。補修材本体は圧縮された多孔質体から受ける反力に
よって容易に変形しないような、あるいは容易にうねり
が生じないような剛性を備えていることが好ましい。In order to achieve this object, a manhole repairing method according to the present invention is a manhole repairing method for repairing the inside of a manhole by attaching a plastic repairing material to the inner surface of the manhole, comprising the steps of: Through the compressible porous layer containing, and by regulating the compression amount of the porous layer by compression amount regulating means to press the plastic repair material against the inner surface of the manhole, the plastic repair material, The pressure is maintained until the curable resin is cured, and the resin is adhered to the inner surface of the manhole. More specifically, the present invention provides a plastic repair material in which a compressible porous layer containing a curable resin is formed on the outer surface side, that is, on the side to be attached to the inner surface of the manhole, A state in which the plastic repair material is pressed so that the layer is pressed against the inner surface of the manhole while the compression amount is regulated by the compression amount regulating means, and the plastic repair material is pressed until the curable resin is cured. And is adhered to the inner surface of the manhole. In many cases, the repair material is formed by forming a thin repair material body made of a plastic having a porous layer on the outer surface, particularly preferably made of a fiber-reinforced plastic, and applying the porous material at the repair site or in a factory. Although it is constituted by including a liquid or fluid curable resin, the repair material itself may be formed at the repair site. As the curable resin, a thermosetting resin can also be used.For example, a repair material is provided with a porous layer containing a thermosetting resin on the outer surface of a plastic bag-like or bottomed tubular repair material body. The repair material is pressed from the inside of the repair material body with the pressurized heating fluid, the porous layer formed on the outer surface side is pressed against the inner surface of the manhole, and the thermosetting impregnated in this porous layer The repair method of curing the conductive resin is also an object of the present invention. As the curable resin, a room-temperature curable resin that does not require the use of a special curing mechanism at the repair site is preferable.For example, an epoxy resin, an acrylic resin, a urethane resin, a polyester resin, or a silicone resin can be used. Particularly, an epoxy resin is preferable because of its excellent handleability. The porous body used for the porous layer is preferably flexible and needs to be appropriately compressed when pressed. Then, the repair material is pressed against the inner surface of the manhole so that the porous body is compressed by an appropriate amount, and the state where the repair material is pressed until the curable resin is sufficiently cured, in other words, the state where the porous body is compressed, is maintained. By doing so, the curable resin protruding from the porous body penetrates deeply into cracks and the like, and a sufficient repair effect can be achieved. Here, if the porous body is excessively compressed, the repair material main body may undulate, and the curable resin may protrude to the surface side of the repair material main body. Therefore, it is necessary to constitute a regulating means for regulating the compression amount of the porous body. It is effective to use a restricting means in which a plurality of convex portions are provided on the outer surface of the repair material main body, and the porous body is entirely provided on the outer surface of the repair material main body so as to cover the convex portions. The porous body provided in the part other than the convex part is compressed to a thickness obtained by adding the thickness of the large compressed porous body provided on the convex part outer surface to the height of the convex part. . Also, the repair material main body is formed in a U-shaped cross section with a concave outer surface, and a porous body having a thickness larger than the depth of the concave portion on the outer surface of the repair material main body is placed in the concave portion on the outer surface of the repair material main body. This is also effective. The porous body is compressed to a thickness at most equal to the depth of the depression. It is preferable that the repair material main body has such a rigidity that it is not easily deformed by the reaction force received from the compressed porous body, or swell is not easily generated.
【０００６】多孔質体の素材としては、スチールウー
ル、又はガラス、ナイロン、ポリエステル、カーボンあ
るいはアラミド等の繊維、ウレタンやポリエチレン等の
連泡フォームや膜なし骨格フォーム、あるいは不織布な
どを用いることができる。多孔質体の空隙率は５０％以
上であることが好ましい。空隙率が５０％未満では硬化
性樹脂を十分に多孔質体に含浸させることができない。
また、硬化性樹脂の粘度は２５℃で５００００ＣＰＳ以
下であることが好ましい。粘度が５００００ＣＰＳを越
えると硬化性樹脂を多孔質体に十分含浸させることが困
難となる。As the material of the porous body, steel wool, fibers such as glass, nylon, polyester, carbon or aramid, open-cell foams such as urethane and polyethylene, skeleton foams without membranes, and nonwoven fabrics can be used. . The porosity of the porous body is preferably 50% or more. If the porosity is less than 50%, the curable resin cannot be sufficiently impregnated into the porous body.
Further, the viscosity of the curable resin at 25 ° C. is preferably 50,000 CPS or less. If the viscosity exceeds 50,000 CPS, it becomes difficult to sufficiently impregnate the porous body with the curable resin.
【０００７】このようなマンホール補修方法は特に、中
間天井部（中間天井部内面）や底面部（底面部内面）を
ライニングするのに適している。中間天井部を補修する
場合には、補修材を平板状に形成して下側から押圧する
ことにより中間天井部に貼り付ける。底面部の平面部分
を補修する場合にも同様に平板状の補修材を上側から押
圧することにより平面部分に貼り付ける。底面部に構成
されている流水溝もライニングする場合にはこの流水溝
に対応した形状の補修材、多くの場合断面半円弧状の補
修材を準備してこの流水構内に貼り付ける。底面部を補
修する場合には、補修する部分を液溜め部分として構成
し、例えば底面部の平面部分の流水溝側にエポキシパテ
等を用いて適当な高さの液漏れ突条部を形成して液溜め
部分を構成し、この液溜め部分内に多孔質体を配置する
とともに液状の硬化性樹脂を流し込み、その後、補修材
（補修材本体）を多孔質体上に載置して押圧してもよ
い。ここでのマンホール補修方法は次の発明として表現
される。 （１）マンホール内面の底面部をプラスチック製補修材
でライニングして補修するマンホール補修方法であっ
て、硬化性樹脂を含んだ多孔質層が外面側に形成され
た、前記底面部に対応した形状のプラスチック製補修材
を準備し、前記多孔質層が前記底面部に押し付けられる
ように前記プラスチック製補修材を上側から押圧し、こ
のプラスチック製補修材を前記硬化性樹脂が硬化するま
で押圧した状態に維持して前記底面部をライニングす
る、マンホール補修方法。 （２）マンホール内面の底面部をプラスチック製補修材
でライニングして補修するマンホール補修方法であっ
て、液漏れ防止部分を設けることにより前記底面部を液
溜めとして構成し、この液溜め内に前記底面部を覆うよ
うに液状の硬化性樹脂を含んだ多孔質体を配置し、その
後前記底面部に対応した形状のプラスチック製補修材を
この多孔質体上に載置してから前記底面部に向けて押圧
する、マンホール補修方法。 （３）マンホール内面の底面部をプラスチック製補修材
でライニングして補修するマンホール補修方法であっ
て、液漏れ防止部分を設けることにより前記底面部を液
溜めとして構成し、この液溜め内に前記底面部を覆うよ
うに多孔質体を配置してから、液状の硬化性樹脂をこの
多孔質体上面にかけるようにして前記液溜め内に流し込
み、その後前記底面部に対応した形状のプラスチック製
補修材をこの多孔質体上に載置して前記底面部に向けて
押圧する、マンホール補修方法。 （４）前記液状の硬化性樹脂の前記液溜め内への流し込
みは、前記液溜め内に前記多孔質体を配置する前に行わ
れる、（３）記載のマンホール補修方法。[0007] Such a manhole repair method is particularly suitable for lining the intermediate ceiling (the inner surface of the intermediate ceiling) and the bottom surface (the inner surface of the bottom). When repairing the intermediate ceiling, the repair material is formed in a flat plate shape, and is adhered to the intermediate ceiling by pressing from below. In the case of repairing the flat portion of the bottom portion, a flat repair material is similarly pressed from above to adhere to the flat portion. When the running water groove formed on the bottom portion is also lined, a repairing material having a shape corresponding to the flowing water groove, and in many cases, a repairing material having a semicircular cross section is prepared and attached to the running water structure. In the case of repairing the bottom part, the part to be repaired is configured as a liquid reservoir part, for example, by forming a liquid leakage ridge part of an appropriate height using epoxy putty etc. on the running water groove side of the flat part of the bottom part A liquid reservoir is formed, a porous body is placed in the liquid reservoir, and a liquid curable resin is poured into the liquid reservoir. Thereafter, a repair material (repair material body) is placed on the porous body and pressed. Is also good. The manhole repair method here is expressed as the following invention. (1) A method for repairing a manhole in which a bottom portion of an inner surface of a manhole is repaired by lining with a plastic repair material, wherein a porous layer containing a curable resin is formed on an outer surface side, the shape corresponding to the bottom portion. A plastic repair material is prepared, and the plastic repair material is pressed from above so that the porous layer is pressed against the bottom surface, and the plastic repair material is pressed until the curable resin is cured. A method for repairing manholes, wherein the bottom surface is lined while maintaining the height. (2) A method for repairing a manhole in which a bottom portion of an inner surface of a manhole is repaired by lining with a plastic repair material, wherein the bottom portion is configured as a liquid reservoir by providing a liquid leakage preventing portion, and the liquid reservoir is provided in the liquid reservoir. A porous body containing a liquid curable resin is disposed so as to cover the bottom part, and then a plastic repair material having a shape corresponding to the bottom part is placed on the porous body and then placed on the bottom part. Repair method for manholes. (3) A method for repairing a manhole in which the bottom surface of the inner surface of the manhole is lined and repaired with a plastic repair material, wherein the bottom portion is configured as a liquid reservoir by providing a liquid leakage preventing portion, and the liquid reservoir is provided in the liquid reservoir. After arranging the porous body so as to cover the bottom, the liquid curable resin is poured into the liquid reservoir so as to cover the top of the porous body, and then a plastic repair having a shape corresponding to the bottom is performed. A method for repairing manholes, wherein a material is placed on the porous body and pressed toward the bottom surface. (4) The manhole repair method according to (3), wherein the liquid curable resin is poured into the liquid reservoir before the porous body is placed in the liquid reservoir.
【０００８】マンホール内面に対する補修材の接着強度
を高めるためには、マンホール内面に予め、大径部が形
成された抜け止めピンを打ち込んでおき、補修材を、多
孔質体が大径部を含んで抜け止めピンを包むように、マ
ンホール内面に押し付けるのが効果的である。抜け止め
ピンは大径部とマンホール内面との間に適当な隙間が生
じるように打ち込まれ、硬化性樹脂を含んだ多孔質体は
大径部の裏側に入り込んで硬化する。In order to increase the adhesive strength of the repair material to the inner surface of the manhole, a retaining pin having a large diameter portion is previously driven into the inner surface of the manhole, and the repair material is filled with the porous material including the large diameter portion. It is effective to press against the inner surface of the manhole so as to wrap the retaining pin with. The retaining pin is driven so that an appropriate gap is formed between the large diameter portion and the inner surface of the manhole, and the porous body containing the curable resin enters the back side of the large diameter portion and is hardened.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１０】図１は本発明に係るマンホール補修材の分
解斜視図である。FIG. 1 is an exploded perspective view of a manhole repair material according to the present invention.
【００１１】マンホール補修材１は、マンホール内面の
中間天井部３（図２参照：図２はマンホール構造体の断
面図）を他のマンホール補修材とともにライニングする
ために用いるものであり、薄肉の平板状に形成された繊
維強化プラスチック製補修材本体５の外面７に膜なし骨
格ウレタンフォーム製の多孔質体９を接着等の固定手段
を用いて取り付けて構成されていて、この多孔質体９に
は常温硬化性エポキシ樹脂が含浸されている。補修材本
体５の外面７には外側に多少突出する凸部１１が複数個
一体的に形成されている。このマンホール補修材１を用
いて中間天井部３をライニングするには、多孔質体９側
を中間天井部３の前側部分に下側から押圧して押し付
け、常温硬化性エポキシ樹脂が硬化するまで押し付け状
態を維持する（図３参照：図３はライニング状態を説明
するための中間天井部３を下から視た平面図）。そし
て、このマンホール補修材１の後方に連続的に並べて、
マンホール補修材１とともに中間天井部３全体を覆うよ
うな形状に形成された同様の構造を有する他の２枚のマ
ンホール補修材１２、１２を押圧して貼り付ける（図４
参照：図４は他のマンホール補修材１２の斜視図）。図
４に示すように、使用されるマンホール補修材１２、１
２は、中間天井部３に形成されている上側人孔１３と下
側人孔１５との連通孔１７の縁に沿ってライニング層が
形成されるような形状に構成されている。マンホール補
修材１を適当な大きさの押圧力で押圧すると、図５に示
すように凸部１１位置の多孔質体９が大きく圧縮されて
多孔質体９がそれ以上圧縮されない状態となり、凸部１
１以外の位置の多孔質体９が適度に圧縮されることとな
る（図５はマンホール補修材１を中間天井部３に押し付
けた状態を示す断面図）。マンホール補修材１２も押圧
されてマンホール補修材１と同様の押付け状態となる。The manhole repair material 1 is used for lining an intermediate ceiling portion 3 (refer to FIG. 2; FIG. 2 is a cross-sectional view of a manhole structure) on the inner surface of the manhole together with other manhole repair materials. A porous body 9 made of a skeleton urethane foam without a film is attached to the outer surface 7 of the fiber-reinforced plastic repair material main body 5 formed in a shape using a fixing means such as bonding. Is impregnated with a cold-setting epoxy resin. The outer surface 7 of the repair material main body 5 is integrally formed with a plurality of convex portions 11 slightly projecting outward. In order to line the intermediate ceiling portion 3 using the manhole repair material 1, the porous body 9 is pressed against the front portion of the intermediate ceiling portion 3 from below and pressed until the room temperature curable epoxy resin is cured. The state is maintained (see FIG. 3: FIG. 3 is a plan view of the intermediate ceiling 3 viewed from below for explaining the lining state). And it is continuously arranged behind this manhole repair material 1,
The other two manhole repairing materials 12, 12 having the same structure and formed in such a shape as to cover the entire intermediate ceiling 3 together with the manhole repairing material 1, are pressed and attached (FIG. 4).
Reference: FIG. 4 is a perspective view of another manhole repair material 12). As shown in FIG. 4, the manhole repair materials 12, 1
2 is formed in such a shape that the lining layer is formed along the edge of the communication hole 17 between the upper human hole 13 and the lower human hole 15 formed in the intermediate ceiling portion 3. When the manhole repair material 1 is pressed with an appropriate pressing force, as shown in FIG. 5, the porous body 9 at the position of the convex portion 11 is greatly compressed, and the porous body 9 is not further compressed. 1
The porous body 9 at a position other than 1 is appropriately compressed (FIG. 5 is a cross-sectional view showing a state where the manhole repairing material 1 is pressed against the intermediate ceiling 3). The manhole repair material 12 is also pressed, and becomes in a pressed state similar to the manhole repair material 1.
【００１２】中間天井部３には予め複数本の抜け止めピ
ン１９が、頭部２１（大径部）と中間天井部３との間に
適当な間隔が形成されるように打ち込まれていて、多孔
質体９は圧縮されてこの頭部２１に絡み付いている。し
たがって、頭部２１に引っかかることにより多孔質体９
の中間天井部３からの剥離は効果的に防止される。ま
た、マンホール補修材１の剥がれ落ちを防止するために
は、マンホール補修材１を中間天井部３に貼り付けた後
に、あるいは押し付けた後に、補修材本体５の内面側か
ら中間天井部３にボルト又は釘をねじ込みあるいは打ち
込んでもよい。ボルト又は釘のねじ込みあるいは打ち込
みは、多孔質体９に含浸された常温硬化性エポキシ樹脂
が硬化する前に行うこともできる。しかしながら、樹脂
硬化前にねじ込みあるいは打ち込み作業を行うと、ボル
ト又は釘の頭部に押されて補修材本体５の内面にへこみ
が生じるおそれがある。したがって、ボルト又は釘のね
じ込みあるいは打ち込みは、エポキシ樹脂が硬化又は半
硬化した後に行うことが好ましい。A plurality of retaining pins 19 are previously driven into the intermediate ceiling 3 so that an appropriate space is formed between the head 21 (large-diameter portion) and the intermediate ceiling 3. The porous body 9 is compressed and entangled with the head 21. Therefore, the porous body 9
From the intermediate ceiling 3 is effectively prevented. Further, in order to prevent the manhole repair material 1 from peeling off, after attaching the manhole repair material 1 to the intermediate ceiling portion 3 or after pressing the manhole repair material 1, a bolt is attached to the intermediate ceiling portion 3 from the inner surface side of the repair material main body 5. Alternatively, a nail may be screwed or driven. The screwing or driving of the bolt or nail can be performed before the cold-setting epoxy resin impregnated in the porous body 9 is cured. However, if the screwing or driving operation is performed before the hardening of the resin, the inner surface of the repair material main body 5 may be dented by being pushed by the head of the bolt or nail. Therefore, it is preferable to screw or drive the bolt or nail after the epoxy resin is cured or semi-cured.
【００１３】マンホール補修材１を全面的に同時に押し
付けると、中間天井部３と多孔質体９との間に空気が入
ってしまい、形成したライニング層に空洞が生じるおそ
れがある。したがって、図５の仮想線及び矢印で示すよ
うにマンホール補修材１を端部（この場合には前端部）
から徐々に押し付けることが好ましい。If the manhole repair material 1 is pressed at the same time over the entire surface, air may enter between the intermediate ceiling portion 3 and the porous body 9 and a cavity may be formed in the formed lining layer. Therefore, the manhole repairing material 1 is placed at the end (in this case, the front end) as shown by the imaginary line and the arrow in FIG.
It is preferable that the pressure is gradually applied from the beginning.
【００１４】図６は本発明に係る別のマンホール補修材
を示す斜視図である。FIG. 6 is a perspective view showing another manhole repair material according to the present invention.
【００１５】別のマンホール補修材２３は連続配置状態
で、すなわち隣接する補修材２３同士を隙間なく又はほ
とんど隙間なく、言い換えるとマンホール内面の補修箇
所に露出部分が無くなるように又はほとんど無くなるよ
うに貼り付けてマンホール内面の中間天井部３全体をラ
イニングするために用いるものであり、薄肉の比較的細
長い断面コ字状体に形成された、すなわち内面部及びこ
の内面部の両側端から直角又はほぼ直角に一体的に延び
る一対の側壁部とから形成された繊維強化プラスチック
製補修材本体２５の外面のくぼみ２７内に膜なし骨格ウ
レタンフォーム製の多孔質体２９を取り付けて構成され
ていて、この多孔質体２９には常温硬化性エポキシ樹脂
が含浸されている。多孔質体２９は、接着等の固定手段
を用いて補修材本体２５に取り付けてもよいが、多少幅
方向に圧縮されるようにくぼみ２７（両側壁部の間）内
に押し込むことにより特別の固定手段を用いないでも補
修材本体２５に確実に取り付けることができる。多孔質
体２９はくぼみ２７から外側に突出するだけの厚み、好
ましくはくぼみ２７の深さの約２倍の厚みを有してい
て、補修材本体２５の一側端（一方の側壁部の外端）に
は外方向側方に、あるいは外方向に平行に多少延びる当
接部３１が一体的に形成されている。このマンホール補
修材２３を用いて中間天井部３をライニングするにはま
ず、最も前側の位置に、他側端３３（他方の側壁部の外
端）及び当接部３１が中間天井部３に当接するまで多孔
質体２９を圧縮してマンホール補修材２３ａを押し付け
る。次に他側端３３が、すでに押し付けられているマン
ホール補修材２３ａの当接部３１に、より詳しくは当接
部３１内面に、そして当接部３１が中間天井部３に当接
するまで多孔質体２９を圧縮して次のマンホール補修材
２３ｂを押し付ける。このようにして、複数本のマンホ
ール補修材２３ａ、２３ｂ、２３ｃ・・・を連続配置状
態で中間天井部３全体を覆うように押し付け、押し付け
状態を維持して常温硬化性エポキシ樹脂を硬化させる
（図７参照：図７は別のマンホール補修材２３によるラ
イニング状態を説明するための断面図）。当接部３１内
面に、隣接するマンホール補修材２３の他側端３３を当
接あるいは載せることにより、中間天井部３をマンホー
ル補修材２３で隙間なく覆うことができる。連通孔１７
の周囲をライニングするマンホール補修材２３（図示せ
ず）は、ライニング層が連通孔１７の縁に沿って形成さ
れるように適当な長さに、そして適当な端部形状を有す
るように形成される。マンホール補修材２３の当接部３
１は、連続配置したときにマンホール補修材２３の内面
３５が水平となるように、あるいはマンホール補修材２
３の内面３５が中間天井部３と平行になるように、肉厚
分だけ他側端３３よりも突出して形成されているが、最
も前側に位置するマンホール補修材２３ａの他側端３３
は当接部３１と同一位置（同一高さ）まで延びている。
なお、図８に示すように両側端に当接部３７を構成した
マンホール補修材３９（マンホール補修材２３の他側端
３３にも当接部を構成したもの）を複数用いて中間天井
部３をライニングすることもできる（図８はさらに別の
マンホール補修材３９によるライニング状態を説明する
ための断面図）。この場合にも、最も前側に位置するマ
ンホール補修材３９ａ以外は、一方の当接部３７が他方
の当接部３７よりも肉厚分だけ突出するように、あるい
は他方の当接部３７が一方の当接部３７よりも肉厚分だ
け低くなるように構成すべきである。両側端に当接部３
７を構成したマンホール補修材３９を用いることによ
り、より安定した状態でマンホール補修材をマンホール
内面に貼り付けることができる。Another repairing material for manholes 23 is adhered in a continuous arrangement state, that is, with no or little gap between adjacent repairing materials 23, in other words, such that the repaired portion on the inner surface of the manhole has no or almost no exposed portion. It is used for lining the entire intermediate ceiling portion 3 on the inner surface of the manhole, and is formed in a thin and relatively elongated U-shaped cross section, that is, a right angle or a substantially right angle from the inner surface portion and both ends of the inner surface portion. A porous body 29 made of a non-membrane skeleton urethane foam is mounted in a recess 27 on the outer surface of a fiber-reinforced plastic repair material main body 25 formed from a pair of side walls extending integrally with the body. The body 29 is impregnated with a room temperature curable epoxy resin. The porous body 29 may be attached to the repair material main body 25 by using a fixing means such as an adhesive. However, the porous body 29 is pressed into the recess 27 (between both side walls) so as to be slightly compressed in the width direction. Even without using fixing means, it is possible to securely attach to the repair material main body 25. The porous body 29 has a thickness enough to protrude outward from the recess 27, preferably about twice the depth of the recess 27, and has one side end of the repair material main body 25 (outside of one side wall portion). At the end), a contact portion 31 that extends slightly outwardly or slightly in parallel to the outward direction is integrally formed. To line the intermediate ceiling 3 using the manhole repairing material 23, first, the other end 33 (outer end of the other side wall) and the contact portion 31 contact the intermediate ceiling 3 at the foremost position. The porous body 29 is compressed until it touches, and the manhole repairing material 23a is pressed. Next, the other end 33 is porous until the contact portion 31 of the manhole repairing material 23a which has already been pressed is in contact with the inner surface of the contact portion 31, and more specifically the contact portion 31 is in contact with the intermediate ceiling portion 3. The body 29 is compressed to press the next manhole repair material 23b. In this manner, the plurality of manhole repairing materials 23a, 23b, 23c,... Are pressed in a continuous arrangement so as to cover the entire intermediate ceiling portion 3, and the pressed state is maintained to cure the room-temperature-curable epoxy resin ( FIG. 7: FIG. 7 is a cross-sectional view for explaining a lining state by another manhole repair material 23). By contacting or placing the other end 33 of the adjacent manhole repair material 23 on the inner surface of the contact portion 31, the intermediate ceiling portion 3 can be covered with the manhole repair material 23 without gaps. Communication hole 17
The manhole repair material 23 (not shown) lining the periphery of is formed to have an appropriate length so that the lining layer is formed along the edge of the communication hole 17 and to have an appropriate end shape. You. Contact part 3 of manhole repair material 23
1 is such that the inner surface 35 of the manhole repair material 23 is horizontal when continuously arranged, or the manhole repair material 2
3 is formed to protrude beyond the other end 33 by the thickness so that the inner surface 35 is parallel to the intermediate ceiling 3, but the other end 33 of the manhole repairing material 23 a located on the foremost side is formed.
Extend to the same position (same height) as the contact portion 31.
As shown in FIG. 8, a plurality of manhole repairing materials 39 having abutting portions 37 on both side ends (those having abutting portions also on the other side end 33 of the manhole repairing material 23) are used, and the intermediate ceiling portion 3 is used. (FIG. 8 is a cross-sectional view for explaining a lining state using still another manhole repair material 39). Also in this case, except for the manhole repairing material 39a located on the foremost side, one contact portion 37 protrudes by the thickness of the other contact portion 37, or the other contact portion 37 has one contact portion. Should be configured to be lower than the contact portion 37 by the thickness. Contact parts 3 on both sides
By using the manhole repairing material 39 constituting 7, the manhole repairing material can be stuck on the inner surface of the manhole in a more stable state.
【００１６】ところで、上側人孔１３の内壁面４１の補
修は、筒状のプラスチック製壁面用補修材４３を内壁面
４１に沿って配置し、壁面用補修材４３と内壁面４１と
の狭い隙間に液状の硬化性樹脂（多くの場合常温硬化性
エポキシ樹脂）を注入して硬化させ、ライニング層を形
成することにより行われる。したがって、壁面用補修材
４３の下端を閉塞しておかなければならないが、閉塞構
造としては、壁面用補修材４３の下端を、連通孔１７を
囲む天井用のマンホール補修材２３の内面３５位置まで
延ばしておき、壁面用補修材４３の下端部とマンホール
補修材２３との間にエポキシパテ、又は硬化性樹脂を含
んだ柔軟な多孔質体（シール材）を充填しあるいは押し
込んで硬化させるものを用いることができる。しかしな
がら、エポキシパテ等を充填して硬化させただけでは十
分な液密性や一体的な剛性を確保できない場合も多い。
したがって、壁面用補修材４３の下端内周面とマンホー
ル補修材２３の内面３５とに掛け渡され、エポキシパテ
等を覆って壁面用補修材４３の下端外側の開口を閉塞す
る断面Ｌ字型の、又は短い筒状部４４及びこの筒状部４
４の下端に一体的に設けられた外向きフランジ部４６か
ら形成された、プラスチック製カバー部材４５を用いる
のが効果的である（図９参照）。図９に示すように、外
向きフランジ部４６には必要に応じて、例えば連通孔１
７の後端部分に中間天井部が形成されていないことに対
応して、切り取り部分を形成する。カバー部材４５は、
マンホール内面の形状に対応して横断面円形又は横断面
４角形等の一体的な筒状体に構成されているのが普通で
あるが、複数個のカバー部材部分を周方向に組み合わせ
て筒状のカバー部材を構成する場合もある。カバー部材
４５を用いる場合には、壁面用補修材４３の下端をマン
ホール補修材２３の内面３５よりも高く位置させておく
場合もある。カバー部材４５の取り付けは、壁面用補修
材４３の下端部とマンホール補修材２３との間にエポキ
シパテ又は硬化性樹脂を含んだ柔軟な多孔質体を充填し
てから、エポキシパテ又は多孔質体にこのカバー部材４
５を押し付けることにより行ってもよいが、図９に示す
ように予めカバー部材４５の外側に柔軟な多孔質体４７
を取り付けておき、多孔質体４７にエポキシ樹脂等の常
温硬化性樹脂を含浸させてからこの多孔質体４７を壁面
用補修材４３の下端部とマンホール補修材２３との間に
押し込むようにしてカバー部材４５を取り付けるのが好
ましい（図９はカバー部材４５の斜視図）。なお、壁面
用補修材４３の下端外側の開口の閉塞は図１０に示すよ
うに、壁面用補修材４３の下端に外向きフランジ４８を
一体的に形成しておき、この外向きフランジ４８の外周
部がマンホール補修材２３の内面３５を覆うように壁面
用補修材４３を上側人孔１３内に配置することによって
行ってもよい（図１０は壁面用補修材４３の下端の別の
閉塞構造を示す断面図）。ここでは、外向きフランジ４
８の外周部をマンホール補修材２３の内面３５に直接当
接させるだけで閉塞構造を構成しているが、もちろん、
外向きフランジ４８の外周部とマンホール補修材２３の
内面３５との間にエポキシパテ等を用いてシールを施し
てもよい。また、場合によっては外向きフランジ４８部
分にカバー部材４５と同様に硬化性樹脂を含んだ多孔質
体を設けておいてもよい。外向きフランジ４８部分にも
必要に応じて切り取り部分を形成する。In order to repair the inner wall surface 41 of the upper human hole 13, a cylindrical plastic wall surface repair material 43 is arranged along the inner wall surface 41, and a narrow gap between the wall surface repair material 43 and the inner wall surface 41 is provided. A liquid curable resin (in most cases, a room temperature curable epoxy resin) is injected and cured to form a lining layer. Therefore, the lower end of the wall repair material 43 must be closed, but as a closed structure, the lower end of the wall repair material 43 extends to the inner surface 35 of the ceiling manhole repair material 23 surrounding the communication hole 17. An epoxy putty or a flexible porous body (sealant) containing a curable resin is filled or pushed between the lower end of the wall surface repair material 43 and the manhole repair material 23, and a material that is cured by being pushed is used. be able to. However, in many cases, sufficient liquid tightness and integral rigidity cannot be ensured only by filling and curing with epoxy putty or the like.
Therefore, an L-shaped cross-section which is hung over the lower end inner peripheral surface of the wall surface repair material 43 and the inner surface 35 of the manhole repair material 23 and covers an epoxy putty or the like and closes the opening at the lower end outer side of the wall surface repair material 43, Or the short tubular portion 44 and the tubular portion 4
It is effective to use a plastic cover member 45 formed from an outward flange portion 46 provided integrally with the lower end of 4 (see FIG. 9). As shown in FIG. 9, for example, the communication hole 1
A cut-out portion is formed corresponding to the absence of the intermediate ceiling portion at the rear end portion of No. 7. The cover member 45 is
It is usually configured as an integral tubular body having a circular cross section or a rectangular cross section corresponding to the shape of the inner surface of the manhole, but a plurality of cover members are combined in the circumferential direction to form a cylindrical body. In some cases. When using the cover member 45, the lower end of the wall surface repair material 43 may be positioned higher than the inner surface 35 of the manhole repair material 23. The cover member 45 is attached by filling a flexible porous body containing an epoxy putty or a curable resin between the lower end of the wall surface repair material 43 and the manhole repair material 23, and then filling the epoxy putty or the porous material with the soft porous material. Cover member 4
5 may be pressed, but as shown in FIG.
Is attached, and the porous body 47 is impregnated with a room temperature curable resin such as an epoxy resin, and then the porous body 47 is pushed between the lower end portion of the wall surface repair material 43 and the manhole repair material 23. It is preferable to attach the cover member 45 (FIG. 9 is a perspective view of the cover member 45). In addition, as shown in FIG. 10, an outward flange 48 is integrally formed at the lower end of the wall surface repair material 43, and the outer periphery of the outward flange 48 is closed. This may be performed by arranging the wall repair material 43 in the upper human hole 13 such that the portion covers the inner surface 35 of the manhole repair material 23 (FIG. 10 shows another closed structure of the lower end of the wall repair material 43. Sectional view). Here, the outward flange 4
8 has a closed structure only by directly contacting the outer peripheral portion of the manhole repair material 23 with the inner surface 35 thereof.
A seal may be provided between the outer peripheral portion of the outward flange 48 and the inner surface 35 of the manhole repair material 23 using an epoxy putty or the like. In some cases, a porous body containing a curable resin may be provided on the outward flange 48 in the same manner as the cover member 45. A cutout portion is also formed on the outward flange 48 as necessary.
【００１７】ここに記載された技術的事項は次の発明に
包含される。 （１）プラスチック製補修材を用いて中間天井部を有す
るマンホール内面をライニングしてマンホール内を補修
するマンホール補修方法であって、硬化性樹脂を含んだ
多孔質層が外面側に形成されているプラスチック製天井
用補修材を、前記多孔質層が前記中間天井部に押し付け
られるように押圧して、前記硬化性樹脂を硬化又は半硬
化させてから、前記中間天井部よりも上方のマンホール
内壁面を隙間を有して覆うように筒状のプラスチック製
壁面用補修材を配置し、外側に硬化性樹脂を含んだ多孔
質体が設けられている断面Ｌ字状のプラスチック製カバ
ー部材を前記壁面用補修材の下端内周面と前記天井用補
修材の内面との間に全周にわたってかぶせることによ
り、前記多孔質体を前記壁面用補修材の下端部と前記天
井用補修材との間に充填し、前記多孔質体内の前記硬化
性樹脂が硬化又は半硬化した後に、前記壁面用補修材と
上方の前記マンホール内壁面との前記隙間に液状の硬化
性樹脂を注入して硬化させる、マンホール補修方法。 （２）前記カバー部材は筒状体に形成されている、
（１）記載のマンホール補修方法。 （３）前記カバー部材は、カバー部材部分が周方向に複
数個組み合わされて筒状体を構成して形成されている、
（１）記載のマンホール補修方法。 （４）マンホール内の中間天井部のプラスチック製ライ
ニング層と、前記中間天井部よりも上方のマンホール内
壁面を隙間を有して覆うように配置された筒状のプラス
チック製壁面用補修材の下端との間を閉塞するカバー部
材であって、短い筒状部及びこの筒状部の下端に一体的
に設けられた外向きフランジ部から形成されたプラスチ
ック製のカバー本体と、このカバー本体の外面側に全周
にわたって設けられた硬化性樹脂を含む多孔質体と、か
ら構成され、前記筒状部は前記壁面用補修材の下端内側
に嵌め込まれ、前記外向きフランジ部は前記ライニング
層を覆うように位置させられる、カバー部材。 （５）マンホール内の中間天井部のプラスチック製ライ
ニング層と、前記中間天井部よりも上方のマンホール内
壁面を隙間を有して覆うように配置された筒状のプラス
チック製壁面用補修材の下端との間を閉塞するための閉
塞構造であって、前記壁面用補修材の下端に、前記ライ
ニング層を覆うような外向きフランジを形成した、閉塞
構造。The technical matters described herein are included in the following invention. (1) A manhole repair method for repairing the inside of a manhole by lining the inside of a manhole having an intermediate ceiling using a plastic repair material, wherein a porous layer containing a curable resin is formed on the outer surface side. A plastic ceiling repair material is pressed so that the porous layer is pressed against the intermediate ceiling portion to harden or semi-harden the curable resin, and then the inner wall surface of the manhole above the intermediate ceiling portion A cylindrical plastic wall surface repair material is disposed so as to cover the wall with a gap, and the plastic cover member having an L-shaped cross section, in which a porous body containing a curable resin is provided outside, is provided. By covering over the entire circumference between the lower inner peripheral surface of the repair material and the inner surface of the repair material for the ceiling, the porous body between the lower end portion of the repair material for the wall surface and the repair material for the ceiling After the curable resin in the porous body is cured or semi-cured, a liquid curable resin is injected into the gap between the wall surface repair material and the inner wall surface of the manhole to be cured. Repair method. (2) the cover member is formed in a cylindrical body;
The method for repairing manholes according to (1). (3) The cover member is formed by combining a plurality of cover member portions in the circumferential direction to form a cylindrical body.
The method for repairing manholes according to (1). (4) The plastic lining layer of the intermediate ceiling in the manhole and the lower end of the cylindrical plastic wall surface repair material disposed so as to cover the manhole inner wall surface above the intermediate ceiling with a gap. A plastic cover body formed from a short tubular portion and an outwardly-facing flange portion integrally provided at a lower end of the tubular portion, and an outer surface of the cover body. And a porous body including a curable resin provided over the entire circumference on the side, wherein the tubular portion is fitted inside the lower end of the wall repair material, and the outward flange portion covers the lining layer. The cover member. (5) The plastic lining layer at the intermediate ceiling in the manhole and the lower end of the cylindrical plastic wall surface repair material disposed so as to cover the manhole inner wall surface above the intermediate ceiling with a gap. And a closing structure in which an outward flange is formed at a lower end of the wall repair material so as to cover the lining layer.
【００１８】なお、下側人孔１５の内壁面４９も、横断
面４角形の筒状壁面用補修材５１で覆い、この筒状壁面
用補修材５１と内壁面４９との隙間に液状の硬化性樹脂
（多くの場合常温硬化性エポキシ樹脂）を注入して硬化
させ、ライニング層を構成して補修するのであるが、筒
状壁面用補修材５１の上端と中間天井部３又はマンホー
ル補修材２３とが接近しているので、硬化性樹脂を注入
しにくい。したがって、筒状壁面用補修材５１の上端に
注入用の小さな切り欠き５３を一つ又は周方向に間隔を
おいて複数個形成しておくとよい。また、図１０の符合
５４、５６は、壁面用補修材４３と上側人孔１３の内壁
面４１との隙間、及び筒状壁面用補修材５１と下側人孔
１５の内壁面４９との隙間に充填された液状の硬化性樹
脂である。The inner wall surface 49 of the lower human hole 15 is also covered with a tubular wall surface repair material 51 having a rectangular cross section, and the gap between the cylindrical wall surface repair material 51 and the inner wall surface 49 is hardened by liquid hardening. Insulating resin (often a cold curable epoxy resin) is injected and cured to form a lining layer for repair. The upper end of the tubular wall repair material 51 and the intermediate ceiling portion 3 or the manhole repair material 23 are repaired. Are close to each other, making it difficult to inject the curable resin. Therefore, it is preferable to form one or a plurality of small notches 53 for injection at the upper end of the cylindrical wall surface repair material 51 at intervals in the circumferential direction. Reference numerals 54 and 56 in FIG. 10 denote a gap between the wall surface repair material 43 and the inner wall surface 41 of the upper human hole 13 and a gap between the cylindrical wall surface repair material 51 and the inner wall surface 49 of the lower human hole 15. Is a liquid curable resin filled in the resin.
【００１９】図１１は本発明に係る別に形成されたマン
ホール補修材を用いて底面部を補修する場合を示す図で
ある。FIG. 11 is a view showing a case where the bottom portion is repaired by using a separately formed manhole repair material according to the present invention.
【００２０】底面部５５を補修するには、補修材本体５
７及び多孔質体５９から構成された２枚の平面部分用マ
ンホール補修材６１と、流水溝６３の形状に対応して断
面半円弧状に形成され、やはり補修材本体６５及び多孔
質体６７から構成された溝用マンホール補修材６９とを
用いて、これらの平面部分用マンホール補修材６１及び
溝用マンホール補修材６９を底面部５５に押し付けて貼
り付ける。補修材本体５７及び６５には、補修材本体５
と同様に外側（下側）に突出する突出部を設けるが、補
修材本体５７及び６５の表面（内面）に凹部が形成され
ないように設けるべきである。補修材本体５７及び６５
の表面に凹部が形成される場合には凹部をエポキシパテ
等を用いて埋めておく必要がある。もちろん、平面部分
用マンホール補修材６１と溝用マンホール補修材６９と
を一体的に形成した形状のマンホール補修材を使用する
こともできる。また、底面部５５の平面部分の補修は、
図１２に示すように流水溝６３側にエポキシパテを用い
て止水用の土手７１を形成し、平面部分に多孔質体５９
を配置してからこの平面部分に常温硬化性エポキシ樹脂
を流し込み、その後、常温硬化性エポキシ樹脂を含浸し
た多孔質体５９上にプラスチック製補修材本体５７を載
置して下側に押圧してもよい。流水溝６３も、流水管開
口部７３を閉塞することにより同様の方法で補修するこ
とができる（図１２は底面部５５の別の補修方法を説明
する図）。In order to repair the bottom portion 55, the repair material main body 5
7 and a porous body 59, and two manhole repairing materials 61 for a flat portion, and a semicircular cross section corresponding to the shape of the water flow groove 63 are formed from the repairing material main body 65 and the porous body 67. By using the configured groove manhole repair material 69, the planar portion manhole repair material 61 and the groove manhole repair material 69 are pressed against and adhered to the bottom surface 55. The repair material main bodies 57 and 65 include the repair material main body 5.
As in (1), a protruding portion protruding outward (downward) is provided, but should be provided so that no concave portion is formed on the surfaces (inner surfaces) of the repair material main bodies 57 and 65. Repair material body 57 and 65
When a concave portion is formed on the surface of the substrate, it is necessary to fill the concave portion using an epoxy putty or the like. Of course, a manhole repairing material having a shape in which the flat portion manhole repairing material 61 and the groove manhole repairing material 69 are integrally formed may be used. The repair of the flat part of the bottom part 55 is as follows.
As shown in FIG. 12, a bank 71 for stopping water is formed on the flowing water groove 63 side using epoxy putty, and a porous body 59 is formed on a plane portion.
After that, the room temperature curable epoxy resin is poured into the flat portion, and then the plastic repair material main body 57 is placed on the porous body 59 impregnated with the room temperature curable epoxy resin and pressed downward. Is also good. The running water groove 63 can also be repaired in a similar manner by closing the running water pipe opening 73 (FIG. 12 illustrates another method of repairing the bottom portion 55).
【００２１】[0021]
【発明の効果】以上説明したように、本発明のマンホー
ル補修方法あるいはマンホール補修材を用いれば、エポ
キシ樹脂等の硬化性樹脂を有効に利用してマンホール内
の中間天井部や底面部にも見栄えのよい優れた補修効果
を有するライニング層を簡単に形成できる。As described above, when the method for repairing manholes or the material for repairing manholes of the present invention is used, a curable resin such as an epoxy resin is effectively used, and the intermediate ceiling portion and the bottom portion in the manhole also look good. A lining layer having a good and excellent repair effect can be easily formed.
【図１】本発明に係るマンホール補修材の分解斜視図で
ある。FIG. 1 is an exploded perspective view of a manhole repair material according to the present invention.
【図２】マンホール構造体の断面図である。FIG. 2 is a sectional view of a manhole structure.
【図３】ライニング状態を説明するための中間天井部を
下から視た平面図である。FIG. 3 is a plan view of an intermediate ceiling for explaining a lining state as viewed from below.
【図４】他のマンホール補修材の斜視図である。FIG. 4 is a perspective view of another manhole repair material.
【図５】マンホール補修材を中間天井部に押し付けた状
態を示す断面図である。FIG. 5 is a cross-sectional view showing a state in which the manhole repairing material is pressed against the intermediate ceiling.
【図６】本発明に係る別のマンホール補修材を示す斜視
図である。FIG. 6 is a perspective view showing another manhole repair material according to the present invention.
【図７】別のマンホール補修材によるライニング状態を
説明するための断面図である。FIG. 7 is a cross-sectional view for explaining a lining state using another manhole repair material.
【図８】さらに別のマンホール補修材によるライニング
状態を説明するための断面図である。FIG. 8 is a cross-sectional view for explaining a lining state using still another manhole repair material.
【図９】カバー部材の斜視図である。FIG. 9 is a perspective view of a cover member.
【図１０】壁面用補修材の下端の別の閉塞構造を示す断
面図である。FIG. 10 is a sectional view showing another closed structure of the lower end of the wall repair material.
【図１１】本発明に係る別に形成されたマンホール補修
材を用いて底面部を補修する場合を示す図である。FIG. 11 is a diagram showing a case where a bottom portion is repaired using a separately formed manhole repair material according to the present invention.
【図１２】底面部の別の補修方法を説明する図である。FIG. 12 is a diagram illustrating another method of repairing the bottom surface.
１、１２、２３、３９、６１、６９ マンホール
補修材 ３ 中間天井部
（マンホール内面） ９、２９、５９、６７ 多孔質体
（多孔質層） ５５ 底面部（マ
ンホール内面）1, 12, 23, 39, 61, 69 Manhole repair material 3 Intermediate ceiling part (manhole inner surface) 9, 29, 59, 67 Porous body (porous layer) 55 Bottom part (manhole inner surface)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 宇田 信也 愛知県小牧市大字北外山字哥津3600番地 東海ゴム工業株式会社内 (72)発明者 水上 勇夫 愛知県小牧市大字北外山字下小管4203番 地の１ 東海化成工業株式会社内 (72)発明者 丹羽 久 東京都世田谷区上用賀１−７−３ 管清 工業株式会社内 (72)発明者 三浦 修司 東京都中央区日本橋本町三丁目３番６号 日曹商事株式会社内 (56)参考文献 特開 平８−74280（ＪＰ，Ａ) 特開 平８−113975（ＪＰ，Ａ) 特開 平９−123279（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) E02D 29/12 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shinya Uda 3600 Gezu, Kita-gaiyama, Komaki-shi, Aichi Prefecture Inside Tokai Rubber Industries Co., Ltd. Address No. 1 Tokai Kasei Kogyo Co., Ltd. (72) Inventor Hisashi Niwa 1-7-3 Kamyoga, Setagaya-ku, Tokyo Inside Kappei Kogyo Co., Ltd. (72) Inventor Shuji Miura 3-chome, Nihonbashi Honcho, Chuo-ku, Tokyo No. 6 Nisso Shoji Co., Ltd. (56) References JP-A-8-74280 (JP, A) JP-A-8-113975 (JP, A) JP-A-9-123279 (JP, A) (58) Field surveyed (Int.Cl. 6 , DB name) E02D 29/12
Claims (15)
に貼り付けてマンホール内を補修するマンホール補修方
法であって、 硬化性樹脂を含んだ圧縮可能な多孔質層を介し、かつ圧
縮量規制手段によってこの多孔質層の圧縮量を規制して
前記プラスチック製補修材を前記マンホール内面に押圧
し、 このプラスチック製補修材を、前記硬化性樹脂が硬化す
るまで押圧した状態に維持して前記マンホール内面に貼
り付ける、ことにより構成され、 前記圧縮量規制手段は、前記プラスチック製補修材の外
面に凸部を複数個設けた構造である、 ことを特徴とするマンホール補修方法。1. A manhole repairing method for repairing the inside of a manhole by attaching a plastic repair material to an inner surface of the manhole, wherein the manhole is repaired by a compressible porous layer containing a curable resin and by a compression amount controlling means. The amount of compression of the porous layer is regulated and the plastic repair material is pressed against the inner surface of the manhole, and the plastic repair material is applied to the inner surface of the manhole while maintaining the pressed state until the curable resin is cured. The method for repairing manholes, wherein the compression amount regulating means has a structure in which a plurality of convex portions are provided on an outer surface of the plastic repair material.
に貼り付けてマンホール内を補修するマンホール補修方
法であって、 硬化性樹脂を含んだ圧縮可能な多孔質層が外面側に形成
されているプラスチック製補修材を準備し、 前記多孔質層が圧縮量規制手段によって圧縮量が規制さ
れて前記マンホール内面に押し付けられるように前記プ
ラスチック製補修材を押圧し、 このプラスチック製補修材を、前記硬化性樹脂が硬化す
るまで押圧した状態に維持して前記マンホール内面に貼
り付ける、ことにより構成され、 前記圧縮量規制手段は、前記プラスチック製補修材の外
面に凸部を複数個設けた構造である、 ことを特徴とするマンホール補修方法。2. A manhole repairing method for repairing the inside of a manhole by attaching a plastic repair material to an inner surface of the manhole, wherein the compressible porous layer containing a curable resin is formed on an outer surface side. A repair material is prepared, and the plastic repair material is pressed so that the amount of compression of the porous layer is regulated by the compression amount regulating means and pressed against the inner surface of the manhole. The compression amount regulating means has a structure in which a plurality of convex portions are provided on the outer surface of the plastic repair material, while maintaining the pressed state until the resin is cured and affixing to the inner surface of the manhole. The method for repairing manholes.
れる前記マンホール内面は、中間天井部又は底面部であ
る、 ことを特徴とする請求項１又は２記載のマンホール補修
方法。3. The manhole repair method according to claim 1, wherein the inner surface of the manhole to which the plastic repair material is attached is an intermediate ceiling portion or a bottom portion.
製補修材でライニングして補修するマンホール補修方法
であって、 液漏れ防止部分を設けることにより前記底面部を液溜め
として構成し、 この液溜め内に前記底面部を覆うように多孔質体を配置
してから、液状の硬化性樹脂をこの多孔質体上面にかけ
るようにして前記液溜め内に流し込み、 その後、前記底面部に対応した形状の前記プラスチック
製補修材を前記多孔質体上に載置して前記底面部に向け
て押圧する、 ことを特徴とするマンホール補修方法。4. A method for repairing a manhole in which a bottom portion of an inner surface of a manhole is repaired by lining with a plastic repair material, wherein the bottom portion is configured as a liquid reservoir by providing a liquid leakage preventing portion. After arranging the porous body so as to cover the bottom portion, the liquid curable resin is poured into the liquid reservoir so as to be applied to the top surface of the porous body, and then the shape corresponding to the bottom portion is formed. A method for repairing manholes, comprising placing the plastic repair material on the porous body and pressing the plastic repair material toward the bottom surface.
構造、に代えて、 前記プラスチック製補修材を外面がくぼんだ断面コ字状
体に形成し、前記外面のくぼみ内に、このくぼみの深さ
より大きい厚みを有するように形成された前記多孔質層
を収めた構造である、 ことを特徴とする請求項１、２又は３記載のマンホール
補修方法。5. The compression amount regulating means, wherein instead of a structure in which a plurality of convex portions are provided on the outer surface of the plastic repair material, the plastic repair material is formed in a U-shaped cross section with a concave outer surface. 4. The manhole repair according to claim 1, wherein the outer layer has a structure in which the porous layer formed to have a thickness larger than the depth of the recess is accommodated in the recess on the outer surface. 5. Method.
形成された抜け止めピンが打ち込まれていて、前記プラ
スチック製補修材は、前記多孔質層が前記大径部を含ん
で前記抜け止めピンを包むように、前記マンホール内面
に押圧される、ことを特徴とする請求項１、２、３又は
５記載のマンホール補修方法。6. A retaining pin having a large-diameter portion formed therein is previously driven into the inner surface of the manhole, and the plastic repairing material includes the porous layer including the large-diameter portion and the retaining pin. The manhole repair method according to claim 1, 2, 3, or 5, wherein the manhole is pressed against the inner surface of the manhole so as to surround the pin.
てマンホール内をライニングするマンホール補修材であ
って、 プラスチック製補修材本体と、この補修材本体の外面に
設けられた押圧されると適当量圧縮される柔軟な多孔質
体と、この多孔質体に含ませられた硬化性樹脂と、を備
え、 前記補修材本体の外面には複数個の凸部が設けられてい
て、前記多孔質体はこの凸部を覆って前記補修材本体の
外面に全体的に設けられている、 ことを特徴とするマンホール補修材。7. A manhole repair material having an outer surface side adhered to an inner surface of a manhole and lining the inside of the manhole, comprising a plastic repair material main body and an appropriate amount of compression provided on an outer surface of the repair material main body when pressed. A flexible porous body, and a curable resin contained in the porous body, a plurality of convex portions are provided on an outer surface of the repair material main body, and the porous body is A manhole repair material, which is provided entirely on an outer surface of the repair material main body so as to cover the convex portion.
てマンホール内をライニングするマンホール補修材であ
って、 プラスチック製補修材本体と、この補修材本体の外面に
設けられた押圧されると適当量圧縮される柔軟な多孔質
体と、この多孔質体に含ませられた硬化性樹脂と、を備
え、 前記補修材本体は外面がくぼんだ断面コ字状体に形成さ
れ、前記多孔質体は前記補修材本体の前記外面のくぼみ
内に納められることにより設けられていて、この多孔質
体は前記補修材本体の前記外面のくぼみの深さより大き
い厚みを有している、ことを特徴とするマンホール補修
材。8. A repair material for a manhole, the outer surface of which is attached to the inner surface of the manhole and lining the inside of the manhole, comprising a plastic repair material main body and an appropriate amount of compression provided when pressed on the outer surface of the repair material main body. And a curable resin contained in the porous body, wherein the repair material main body is formed in a U-shaped cross section with a concave outer surface, and the porous body is A manhole, which is provided by being accommodated in the recess on the outer surface of the repair material main body, wherein the porous body has a thickness larger than the depth of the recess on the outer surface of the repair material main body. Repair materials.
方には側方に延びる当接部が形成されている、ことを特
徴とする請求項８記載のマンホール補修材。9. The manhole repair material according to claim 8, wherein a contact portion extending laterally is formed on at least one of both side ends of the repair material main body.
数個用いてマンホール内面を補修するマンホール補修方
法であって、 前記補修材本体の両側端の少なくとも一方が前記マンホ
ール内面に当接するまでそれぞれの前記マンホール補修
材をこのマンホール内面に押し付け、このマンホール補
修材を、前記硬化性樹脂が硬化するまで押し付けられた
状態に維持して前記マンホール内面に連続配置状態で貼
り付ける、 ことを特徴とするマンホール補修方法。10. A manhole repairing method for repairing a manhole inner surface using a plurality of manhole repairing materials according to claim 8, wherein at least one of both side ends of the repairing material main body abuts on the manhole inner surface. The manhole repairing material is pressed against the inner surface of the manhole, and the manhole repairing material is stuck to the inner surface of the manhole in a continuously arranged state while being kept pressed until the curable resin is cured. Repair method.
一方に側方に延びる当接部を形成しておき、隣接する一
方の前記補修材本体の当接部に他方の前記補修材本体の
側端が当接する状態で複数個の前記マンホール補修材を
前記マンホール内面に貼り付ける、ことを特徴とする請
求項１０記載のマンホール補修方法。11. A contact portion extending laterally is formed on at least one of both side ends of the repair material main body, and a contact portion of one adjacent repair material main body is provided on a side of the other repair material main body. The manhole repairing method according to claim 10, wherein a plurality of the manhole repairing materials are attached to an inner surface of the manhole in a state where the ends abut.
井部を有するマンホール内面をライニングしてマンホー
ル内を補修するマンホール補修方法であって、 硬化性樹脂を含んだ多孔質層が外面側に形成されている
プラスチック製天井用補修材を、前記多孔質層が前記中
間天井部に押し付けられるように押圧して、前記硬化性
樹脂を硬化又は半硬化させてから、 前記中間天井部よりも上方のマンホール内壁面を隙間を
有して覆うように筒状のプラスチック製壁面用補修材を
配置し、 前記壁面用補修材の下端部と前記天井用補修材との間に
シール材を充填して硬化させ、 その後、前記壁面用補修材と上方の前記マンホール内壁
面との前記隙間に液状の硬化性樹脂を注入して硬化させ
る、 ことを特徴とするマンホール補修方法。12. A manhole repair method for repairing the inside of a manhole by lining the inside of the manhole having an intermediate ceiling using a plastic repair material, wherein a porous layer containing a curable resin is formed on an outer surface side. The plastic ceiling repair material is pressed so that the porous layer is pressed against the intermediate ceiling, and the curable resin is cured or semi-cured, and then the manhole above the intermediate ceiling is removed. A cylindrical plastic wall repair material is arranged so as to cover the inner wall surface with a gap, and a sealing material is filled and cured between a lower end portion of the wall repair material and the ceiling repair material. Thereafter, a liquid curable resin is injected into the gap between the wall surface repair material and the inner wall surface of the manhole to be cured.
軟な多孔質体である、ことを特徴とする請求項１２記載
のマンホール補修方法。13. The manhole repair method according to claim 12, wherein the sealing material is a flexible porous body containing a curable resin.
天井用補修材の内面との間に、前記シール材を覆う断面
Ｌ字状のプラスチック製カバー部材をかぶせる、ことを
特徴とする請求項１２又は１３記載のマンホール補修方
法。14. A plastic cover member having an L-shaped cross section that covers the seal member is provided between an inner peripheral surface of a lower end of the repair material for wall surface and an inner surface of the repair material for ceiling. The manhole repair method according to claim 12 or 13.
井部を有するマンホール内面をライニングしてマンホー
ル内を補修するマンホール補修方法であって、 硬化性樹脂を含んだ多孔質層が外面側に形成されている
プラスチック製天井用補修材を、前記多孔質層が前記中
間天井部に押し付けられるように押圧して、前記硬化性
樹脂を硬化又は半硬化させてから、 前記中間天井部よりも上方のマンホール内壁面を隙間を
有して覆うように、下端に外向きフランジを有する筒状
のプラスチック製壁面用補修材を配置し、 前記壁面用補修材の前記外向きフランジが前記天井用補
修材の内面を覆う状態にしてから、前記壁面用補修材と
上方の前記マンホール内壁面との前記隙間に液状の硬化
性樹脂を注入して硬化させる、 ことを特徴とするマンホール補修方法。15. A manhole repair method for repairing the inside of a manhole by lining an inner surface of a manhole having an intermediate ceiling using a plastic repair material, wherein a porous layer containing a curable resin is formed on an outer surface side. The plastic ceiling repair material is pressed so that the porous layer is pressed against the intermediate ceiling, and the curable resin is cured or semi-cured, and then the manhole above the intermediate ceiling is removed. A cylindrical plastic wall surface repair material having an outward flange at the lower end is disposed so as to cover the inner wall surface with a gap, and the outward flange of the wall surface repair material is an inner surface of the ceiling repair material. A liquid curable resin is injected into the gap between the wall surface repair material and the upper wall surface of the manhole, and is cured. Repair method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10023746A JP2932265B2 (en) | 1998-01-20 | 1998-01-20 | Manhole repair method and manhole repair material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10023746A JP2932265B2 (en) | 1998-01-20 | 1998-01-20 | Manhole repair method and manhole repair material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11210007A JPH11210007A (en) | 1999-08-03 |
| JP2932265B2 true JP2932265B2 (en) | 1999-08-09 |
Family
ID=12118887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10023746A Expired - Fee Related JP2932265B2 (en) | 1998-01-20 | 1998-01-20 | Manhole repair method and manhole repair material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2932265B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4582771B2 (en) * | 2004-08-04 | 2010-11-17 | 新日鉄マテリアルズ株式会社 | Method for reinforcing concrete structure embedded in the ground and reinforced concrete structure |
-
1998
- 1998-01-20 JP JP10023746A patent/JP2932265B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11210007A (en) | 1999-08-03 |
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