JP4920195B2 - Water stop plate and water stop method - Google Patents
Water stop plate and water stop method Download PDFInfo
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- JP4920195B2 JP4920195B2 JP2005106011A JP2005106011A JP4920195B2 JP 4920195 B2 JP4920195 B2 JP 4920195B2 JP 2005106011 A JP2005106011 A JP 2005106011A JP 2005106011 A JP2005106011 A JP 2005106011A JP 4920195 B2 JP4920195 B2 JP 4920195B2
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Description
本発明は、止水板及び止水方法に関する。 The present invention relates to a waterstop及beauty waterproofing method.
発電所等の取水路等の水路ないし管路において、コンクリート躯体同士を接続する耐震ジョイントに亀裂が発生し、この亀裂から漏水が発生することが考えられる。 In waterways or pipes such as intake channels such as power plants, cracks may occur in earthquake-resistant joints that connect concrete frames, and water leakage may occur from these cracks.
耐震ジョイント等に亀裂が発生した場合、耐震ジョイントを取り外し新規なものに交換すると、取り外し時、水圧が解放されて水が吐出するおそれがある。 If a crack occurs in an earthquake-resistant joint, etc., if the earthquake-resistant joint is removed and replaced with a new one, the water pressure may be released and water may be discharged during removal.
本発明の目的は、簡単に亀裂を閉塞して止水することができる止水板及び止水方法を提供することである。 An object of the present invention is to provide a waterproofing Ita及 beauty waterproofing method capable of stopping water to easily close the crack.
本発明は、第1の視点において、可撓性ないし弾性を有し、亀裂の外壁面から流体の内圧が作用する該亀裂の内壁面に向かって畳まれた状態で挿入すること、及び、該内圧を受けて該内壁面に面接触して該内壁面に圧着されて該亀裂を塞ぐこと、が可能であるよう構成された止水板であって、前記止水板は、面方向に沿って中央部から周辺部に向かって厚みが薄くなるよう、テーパー状に形成されてなることを特徴とする止水板を提供する The present invention, in a first aspect, is inserted in a folded state from the outer wall surface of the crack to the inner wall surface of the crack where the internal pressure of the fluid acts from the outer wall surface of the crack, A water stop plate configured to receive an internal pressure to make a surface contact with the inner wall surface and be crimped to the inner wall surface to close the crack, and the water stop plate is arranged along a surface direction. Providing a water stop plate that is formed in a tapered shape so that the thickness decreases from the central portion toward the peripheral portion.
本発明は、第2の視点において、可撓性ないし弾性を有する止水板を畳み、畳んだ前記止水板を亀裂の外壁面から流体の内圧が作用する該亀裂の内壁面に向かって挿入し、前記亀裂の内側で前記止水板が該内圧を受けて該内壁面に面接触して該内壁面に圧着して該亀裂を塞ぐ、ことを特徴とする止水方法を提供する。 In the second aspect , the present invention folds a water stop plate having flexibility or elasticity, and inserts the folded water stop plate from the outer wall surface of the crack toward the inner wall surface of the crack where the internal pressure of the fluid acts. Then, the water stop method is provided, wherein the water stop plate receives the internal pressure inside the crack, comes into surface contact with the inner wall surface, and is crimped to the inner wall surface to close the crack.
(1)本発明によれば、可撓性ないし弾性を有する止水板を用いることにより、止水板を亀裂に直接挿入することができるため、止水板を亀裂以外の箇所から迂回して亀裂直下に移動させる場合に比べて、止水板を挿入するための特別の装置を用いることなく、迅速かつ簡単に止水を行うことができる。
(2)本発明によれば、可撓性ないし弾性を有する止水板が流体の内圧、すなわち、亀裂内壁面側から外壁面側に向かって作用する圧力によって、亀裂内壁面に自動的に圧着するため、内圧が高い場合であっても、かえって止水能力が向上する。
(3)本発明によれば、可撓性を有する止水板が流体の内圧、すなわち、亀裂内壁面側から外壁面側に向かって作用する圧力によって、亀裂内壁面に自動的に圧着するため、止水板を亀裂外壁面側で固定する場合にくらべて、止水板の固定に手間を要せず、止水板の固定が簡単である。
(1) According to the present invention, by using a water stop plate having flexibility or elasticity, the water stop plate can be directly inserted into the crack, so that the water stop plate is bypassed from a place other than the crack. Compared with the case of moving just below the crack, the water can be stopped quickly and easily without using a special device for inserting the water stop plate.
(2) According to the present invention, the water stop plate having flexibility or elasticity is automatically pressed against the crack inner wall surface by the internal pressure of the fluid, that is, the pressure acting from the crack inner wall surface side toward the outer wall surface side. Therefore, even if the internal pressure is high, the water stopping ability is improved.
(3) According to the present invention, the flexible water stop plate is automatically pressed against the crack inner wall surface by the internal pressure of the fluid, that is, the pressure acting from the crack inner wall surface side toward the outer wall surface side. Compared to the case where the water stop plate is fixed on the outer wall surface side of the crack, fixing of the water stop plate is not required and the fixing of the water stop plate is simple.
前記止水板は、面方向に沿って中央部から周辺部に向かって厚みが薄くなるよう、テーパー状に形成されてなることにより、可撓性が高められ、亀裂への挿入が容易となる。 The water stop plate is formed in a taper shape so that the thickness is reduced from the central portion toward the peripheral portion along the surface direction, thereby increasing flexibility and facilitating insertion into a crack. .
前記止水板は、互いに分離可能な複数の止水板が厚み方向に沿って積層されてなることにより、亀裂の深さや大きさに応じて、止水板の厚みや大きさを調整することができる。 The water stop plate is formed by laminating a plurality of water stop plates that can be separated from each other in the thickness direction, thereby adjusting the thickness and size of the water stop plate according to the depth and size of the crack. Can do.
積層された前記複数の止水板同士は、凹凸によって互いに係合していることにより、亀裂の形状に応じて止水板の分離による厚みや大きさ等の調整が容易となり、かつ、止水時には積層された複数の止水板同士の結合が高められる。 The plurality of stacked water stop plates are engaged with each other by unevenness, so that it is easy to adjust the thickness and size by separating the water stop plates according to the shape of the crack, and the water stop Sometimes the bond between the plurality of water blocking plates stacked is enhanced.
本発明の実施の形態に係る止水装置は、亀裂の外壁面から流体の内圧が作用する該亀裂の内壁面に向かって挿入される挿入治具と、前記挿入治具に取り付けられ、可撓性ないし弾性を有し、前記亀裂の前記外壁面から前記内壁面に向かって畳まれた状態で挿入すること、及び、該内圧を受けて該内壁面に面接触して該内壁面に圧着されて該亀裂を塞ぐこと、が可能であるよう構成された本発明による止水板と、を有する。
前記挿入治具は、前記亀裂の内側に挿入され前記止水板が支持される先端部と、前記先端部が前記亀裂に挿入された状態で該亀裂の外側に位置する部分に形成され、前記止水板が前記先端部に支持されるよう該止水板に形成された取付穴が嵌装されるねじ部と、を備え、前記止水装置は前記挿入治具を前記亀裂が発生した部材に係止するため、前記ねじ部に螺合されるナットを、有することにより、止水板を亀裂に挿入した後、前記挿入治具をそのねじ部を利用して亀裂が発生した部材等に係止することができる。
The water stop device according to the embodiment of the present invention includes an insertion jig that is inserted from the outer wall surface of the crack toward the inner wall surface of the crack where the internal pressure of the fluid acts, and is attached to the insertion jig and is flexible. The inner wall surface of the crack is folded from the outer wall surface toward the inner wall surface, and the inner pressure is received and brought into surface contact with the inner wall surface to be crimped to the inner wall surface. And a water stop plate according to the present invention configured to be capable of closing the crack.
The insertion jig has a tip the waterstop is inserted inside the crack is supported, the tip portion is formed at a portion located outside of the cracks in a state of being inserted into the crack, said A threaded portion in which a mounting hole formed in the water stop plate is fitted so that the water stop plate is supported by the tip portion, and the water stop device is a member in which the crack is generated. After having inserted the water stop plate into the crack by having a nut screwed into the threaded portion for locking to the threaded portion, the insertion jig is used for the cracked member or the like using the threaded portion. Can be locked.
止水装置は、前記止水板が前記亀裂を塞いだ後、該亀裂上を被覆する一又は複数の所定のシートと、前記亀裂が発生した部材と相似な形状を備え、前記所定のシート上に被せられ、該シートを該部材との間で挟持する保護カバーと、を有する。 The water stop device includes one or a plurality of predetermined sheets that cover the crack after the water stop plate has closed the crack, and a shape similar to the member in which the crack has occurred, And a protective cover for sandwiching the sheet with the member.
以下、図面を参照して、本発明の一実施例を説明する。 An embodiment of the present invention will be described below with reference to the drawings.
図1は、本発明の一実施例に係る止水板及びそれを用いた止水装置の説明図である。図1を参照すると、本発明の一実施例に係る止水板を用いた止水装置は、亀裂外壁面側から流体の内圧が作用する内壁面側に向かって挿入される挿入治具1と、挿入治具1に取り付けられ、可撓性ないし弾性を有し、前記亀裂の外壁面側から畳まれた状態で該亀裂に挿入すること、及び、該亀裂内壁面側で拡がり、該内圧を受けて該内壁面に面接触して該内壁面に圧着されて該亀裂を塞ぐこと、が可能であるよう構成された止水板2と、を有する。
FIG. 1 is an explanatory view of a water stop plate and a water stop device using the same according to one embodiment of the present invention. Referring to FIG. 1, a water stop device using a water stop plate according to an embodiment of the present invention includes an
止水板2は、互いに分離可能な複数の止水板2a,2b,2cが厚み方向に沿って積層されてなる。複数の止水板2a,2b,2cの中央には取付穴1dが形成され、取付穴1dを介して挿入治具1のねじ部1bに嵌装されて、挿入治具1の先端部1aの背面に支持された状態で、挟持又は接着剤等により取り付けられる。
The
積層された複数の止水板2b,2c同士は、凹凸3によって互いに係合していることにより、止水板2b,2cの分離が容易となり、かつ、止水時には積層された複数の止水板2b,2c同士の結合が高められる。
The plurality of stacked
止水板2は、複数の止水板2a,2b,2cの外径が順に大きくされることにより、面方向に沿って中央部から周辺部に向かって厚みが薄くなるよう、テーパー状に形成されてなる。
The
挿入治具1は、前記亀裂の内側に挿入され止水板2が支持ないし取り付けられる先端部1aと、先端部1aが前記亀裂の内側に挿入された状態で該亀裂の外側に位置する部分に形成され、止水板2が嵌装されるねじ部1bと、挿入時に保持されるハンドル部1cと、を有する。挿入治具1は、切断可能に形成され、ねじ部1bにはナット4を螺合することができる。
The
次に、以上説明した止水装置を耐震ジョイントに発生した亀裂の止水に用いた施工例を説明する。図2は、図1に示した止水装置を耐震ジョイントに発生した亀裂の止水に用いた施工例である。図3(A)〜図3(F)は図2に示した施工例の工程図である。 Next, the construction example which used the water stop apparatus demonstrated above for the water stop of the crack which generate | occur | produced in the earthquake-resistant joint is demonstrated. FIG. 2 shows a construction example in which the water stop device shown in FIG. 1 is used to stop a crack generated in an earthquake-resistant joint. 3A to 3F are process diagrams of the construction example shown in FIG.
図2及び図3(A)を参照すると、コンクリート躯体同士に接続されているM字型の耐震ジョイント10に、目地部の上方で亀裂が発生すると、施工者は、挿入治具1の先端に止水板2を取り付け、流体の内圧(水圧)を受けて膨張した耐震ジョイント10に発生した亀裂に挿入する。止水板2は、亀裂内側の内圧により、亀裂内壁面に自動的に圧着する。
Referring to FIGS. 2 and 3A, when a crack occurs in the M-shaped
図3(B)を参照すると、施工者は、図1に示したねじ部1bにナット4を螺合して、挿入治具1の耐震ジョイント10に対する係止を確実にし、ねじ部1bの余長を切断する。
Referring to FIG. 3 (B), the installer secures the locking of the
図3(C)〜図3(D)を参照すると、施工者は、耐震ジョイント10に保護シート5、次に補強シート6を接着し、さらに、ゴム系の充填剤8を塗布する。
Referring to FIGS. 3C to 3D, the installer adheres the
図3(E)を参照すると、補強シート6上から耐震ジョイント10と相似形状の保持カバー7を被せて接着し、全体を内側へ押し込む。これによって、挿入治具1の先端部1a(図1参照)が、耐震ジョイント10の間の目地部に挿入され、止水板2が、先端部1aと目地部開口との隙間を塞ぎ、さらに止水が確実にされる。
Referring to FIG. 3 (E), a
以上説明した本発明の一実施例に係る止水装置を用いて止水試験を行った。試験条件は下記のとおりである。 A water stop test was performed using the water stop device according to the embodiment of the present invention described above. The test conditions are as follows.
耐震ジョイント:t=14;
挿入治具:SUS304 ねじ部M4;
止水ゴム:クロロプレン系合成ゴム、中央孔φ14、三層積層の外径φ30,52,75、t=5;
保護シート:クロロプレン系合成ゴム;
補強シート:合成ゴム+補強繊維;
接着剤:ゴム系樹脂接着剤
充填剤:ポリブタジエン系接着剤−2液型
保持カバー:SUS304。
Seismic joint: t = 14;
Insertion jig: SUS304 screw part M4;
Water-stopping rubber: Chloroprene-based synthetic rubber, central hole φ14, three-layer outer diameter φ30, 52, 75, t = 5;
Protective sheet: Chloroprene-based synthetic rubber;
Reinforcing sheet: synthetic rubber + reinforcing fiber;
Adhesive: Rubber-based resin adhesive Filler: Polybutadiene-based adhesive-2 liquid type Holding cover: SUS304.
以上の試験条件で、流体の内圧として0.1MPaの水圧を印加し、26日間放置したが、漏水は発生しなかった。また、保持カバーを取り外したところ、充填剤は弾性を有し、補強シート、保護シートに剥がれ等もなく良好であった。 Under the above test conditions, a water pressure of 0.1 MPa was applied as the internal pressure of the fluid and left for 26 days, but water leakage did not occur. Further, when the holding cover was removed, the filler had elasticity and was good without being peeled off from the reinforcing sheet and the protective sheet.
さらに、耐震ジョイントの引張試験(図2中左右方向への引張り)を行ったところ、引張り荷重3.45kNまで、各シートの剥離がなかった。これは、耐震ジョイントと同形状の保護カバーを被せることにより、各シート等の追随性が向上しているからと考察される。 Furthermore, when the tensile test (tensile to the left-right direction in FIG. 2) of the earthquake-resistant joint was performed, there was no peeling of each sheet up to a tensile load of 3.45 kN. This is considered to be because the followability of each sheet and the like is improved by covering the protective cover having the same shape as the seismic joint.
本発明の止水板、それを用いた止水装置及び止水方法は、耐震ジョイントの亀裂の補修の他、種々の水路、ガス管、その他の配管において、気体、液体等の流体の内圧がかかる箇所における亀裂の補修に適用される。例えば、配管に亀裂が発生した場合、亀裂に止水板を直接挿入すると、配管内の圧力により、自動的に止水板が配管内壁面に圧着し、止水ができる。 The water stop plate of the present invention, the water stop device and the water stop method using the same , in addition to repairing the crack of the earthquake-resistant joint, the internal pressure of the fluid such as gas and liquid in various water channels, gas pipes and other pipes Applies to repairing cracks at such locations. For example, when a crack occurs in the pipe, if the water stop plate is directly inserted into the crack, the water stop plate is automatically pressed against the inner wall surface of the pipe by the pressure in the pipe, and water stop can be performed.
1 挿入治具
1a 先端部
1b ねじ部
1c ハンドル部
2 止水板
2a 下層の止水板
2b 中間層の止水板
2c 上層の止水板
2d 取付穴
3 凹凸
4 ナット
5 保護シート
6 補強シート
7 保持カバー
8 充填剤
10 耐震ジョイント
DESCRIPTION OF
Claims (4)
前記止水板は、面方向に沿って中央部から周辺部に向かって厚みが薄くなるよう、テーパー状に形成されてなることを特徴とする止水板。 It is flexible or elastic and is inserted in a folded state toward the inner wall surface of the crack where the internal pressure of the fluid acts from the outer wall surface of the crack, and is in surface contact with the inner wall surface under the internal pressure A water stop plate configured to be crimped to the inner wall surface to close the crack,
The water stop plate is formed in a taper shape so that the thickness decreases from the central portion toward the peripheral portion along the surface direction.
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JP2005106011A JP4920195B2 (en) | 2005-04-01 | 2005-04-01 | Water stop plate and water stop method |
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JP4920195B2 true JP4920195B2 (en) | 2012-04-18 |
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JPS5915889A (en) * | 1982-07-19 | 1984-01-26 | 株式会社東芝 | Primary cooling system for fast breeder |
JPH02141004A (en) * | 1988-11-21 | 1990-05-30 | Matsushita Electric Ind Co Ltd | Microwave integration circuit device |
JP2547695B2 (en) * | 1992-10-30 | 1996-10-23 | 晃吉 館野 | Joint material repair method |
JP2002180798A (en) * | 2000-12-13 | 2002-06-26 | Ishikawajima Constr Materials Co Ltd | Underwater tunnel segment |
JP2003049442A (en) * | 2001-08-06 | 2003-02-21 | Taisei Corp | Flexible joint device for submerged caisson and its repair method |
JP2005201406A (en) * | 2004-01-19 | 2005-07-28 | Nippon Steel Corp | Repairing device of piping and piping repairing method using it |
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