JPH02147711A - Water stopping sheet for civil engineering work and connecting method thereof - Google Patents

Water stopping sheet for civil engineering work and connecting method thereof

Info

Publication number
JPH02147711A
JPH02147711A JP30021788A JP30021788A JPH02147711A JP H02147711 A JPH02147711 A JP H02147711A JP 30021788 A JP30021788 A JP 30021788A JP 30021788 A JP30021788 A JP 30021788A JP H02147711 A JPH02147711 A JP H02147711A
Authority
JP
Japan
Prior art keywords
water
sheet
water stopping
adhesive
metal foil
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.)
Pending
Application number
JP30021788A
Other languages
Japanese (ja)
Inventor
Sadatoshi Toshida
利田 貞利
Koichi Akisawa
秋澤 光一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daiabondo Kogyo Kk
Ikeda Corp
Original Assignee
Daiabondo Kogyo Kk
Ikeda Bussan Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daiabondo Kogyo Kk, Ikeda Bussan Co Ltd filed Critical Daiabondo Kogyo Kk
Priority to JP30021788A priority Critical patent/JPH02147711A/en
Publication of JPH02147711A publication Critical patent/JPH02147711A/en
Pending legal-status Critical Current

Links

Landscapes

  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Revetment (AREA)

Abstract

PURPOSE:To secure the water stopping property and improve the construction property by installing a metal foil tape coated with a fusion bonding adhesive beneath a water stopping sheet terminal butt section and high-frequency induction-heating it from above a sheet to connect the sheet terminal. CONSTITUTION:A glass cloth for damping and applying strength is laminated and stuck on a metal foil, and the fusion bonding adhesive is coated on it to form an adhesive tape 1. The terminal of the water stopping sheet 10 is butted to provided a butt section 10a, and the adhesive tape 1 is installed on the rear face across both of them. A high-frequency induction heater 18 is installed on the water stopping sheet 10 and moved in the longitudinal direction of the butt section 10a to heat and connect the butt section 10a. A good water stopping property can be maintained as a back filling material for revetment block construction or the like, and a flat water stopping sheet face not obstructing the block installation can be quickly constructed.

Description

【発明の詳細な説明】 (産業上の利用分野) この発明は、宅地造成や、護岸工事などに用いられる土
木工事用遮水シートおよびその連結方法に関し、特に遮
水シート同士の端末を現場施工により、水密かつ迅速に
接続出来る土木工事用遮水シートおよびその連結方法に
関する。
[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to a water-shielding sheet for civil engineering work used for residential land development, bank protection work, etc., and a method for connecting the same, and particularly relates to a method for connecting the ends of water-shielding sheets to each other on-site. The present invention relates to a water-shielding sheet for civil engineering work that can be connected watertightly and quickly, and a method for connecting the same.

(従来の技術) 土木材料としての遮水シートは、天然素材よりも安価で
遮水作用も秀れていることや、厚さ管理が容易なこと、
施工が簡略化されることなどから、その適用範囲は拡大
されつつ在り、例えば護岸工事の連節ブロックやロック
フィル層の裏込材として用いられている。
(Conventional technology) Water-shielding sheets as civil engineering materials are cheaper than natural materials, have excellent water-shielding properties, and are easy to control their thickness.
As construction is simplified, the scope of its application is expanding, and it is used, for example, as an articulated block in seawall construction or as a backfill material for rockfill layers.

第3図はこのような遮水シートの使用例を示したもので
ある。
FIG. 3 shows an example of the use of such a water-blocking sheet.

図における遮水シートaは、河などの土手の法面すに敷
設され、同シートaの上面に連節用のブロックCを順次
敷き詰めることにより、ブロックCの目地から法面すに
侵入する水を遮水するとともに、ブぼツクCの目地の隙
間から土砂が流出したり洗堀されることを防止している
The water-shielding sheet a in the figure is laid on the slope of a bank such as a river, and by sequentially laying connecting blocks C on the top of the sheet a, it prevents water from entering the slope from the joints of the blocks C. In addition to blocking water, it also prevents earth and sand from flowing out or being washed away through the gaps between the joints of Bubotsuku C.

ここで用いられる遮水シートaは、遮水性の塩ビシート
などの遮水シート本体dと、本体dの保護およびブロッ
クCの仮固定を安定化するフェルトeと、フェルトeの
補強用不織布fを層状に一体化したもので、所定の長さ
に形成されたものを巻き上げた状態で施工現場に提供さ
れ、法面に繰り出しつつ敷設するようになっている。
The water-shielding sheet a used here consists of a water-shielding sheet body d such as a water-shielding PVC sheet, a felt e that protects the body d and stabilizes the temporary fixation of the block C, and a nonwoven fabric f for reinforcing the felt e. It is an integrated layered structure that is rolled up to a predetermined length and provided to the construction site, and is laid as it is rolled out onto the slope.

(発明が解決しようとする課題) ところで、従来の遮水シートaは、前述のごとく比較的
長い一枚らのであって、遮水シートaの幅を法面すの長
さに合せて製作したのでは多種類の寸法の遮水シートを
生産することになり、管理が困誼となる上に、生産性を
妨げる原因となる。
(Problem to be Solved by the Invention) By the way, the conventional water-shielding sheet a is a relatively long single sheet as described above, and the width of the water-shielding sheet a is made to match the length of the slope. In this case, water-shielding sheets with many different sizes would be produced, which would not only be difficult to manage but also hinder productivity.

したがって、遮水シートaとして定尺ものを複数種類用
意しておき、法面すの長さが長い場合には、複数の遮水
シートaをその末端同士を重ね合わせた状態で敷設する
ようにすればよい。
Therefore, prepare multiple types of standard-length water-shielding sheets a, and when the length of the slope is long, lay multiple water-shielding sheets a with their ends overlapping each other. do it.

しかし、このような場合には、重なり部分の水密性及び
遮水性が無く、この部分からの洗堀が生ずるほか、ブロ
ックCの敷き詰め時に重なり部分がブロックCと擦れ合
い、捲れ上がったり破損しやすい欠点が指摘されていた
However, in such a case, the overlapping part is not watertight or waterproof, and scour occurs from this part, and the overlapping part rubs against the block C when the blocks C are laid down, causing it to easily roll up or be damaged. was pointed out.

したがって、この部分を突き合わせた状態で簡単な方法
により接着できれば、以上の問題を解決できる。
Therefore, if these parts can be bonded together by a simple method while they are butted together, the above problem can be solved.

この発明は以上の観点に基づきなされたものであって、
この種の土木工事用遮水シート同士の突合わせ接着に好
適な接着用テープを用いた土木工事用遮水シート及びそ
の連結方法を提供することを目的とする。
This invention was made based on the above points of view,
It is an object of the present invention to provide a water-shielding sheet for civil engineering work using an adhesive tape suitable for butt adhesion of this type of water-shielding sheets for civil engineering work, and a method for connecting the same.

(課題を解決するための手段) 前記目的を達成するため、この発明は、法面に敷設され
る遮水シート同士の隣り合う端末突合わせ部の下面が加
熱用金属箔の片面に熱融着性接着剤を塗布した接着テー
プにより連結したものである。
(Means for Solving the Problems) In order to achieve the above object, the present invention provides a method in which the lower surfaces of adjacent end abutting portions of water-shielding sheets laid on a slope are thermally fused to one side of a heating metal foil. They are connected using adhesive tape coated with adhesive.

また、この発明では、前記接着テープを遮水シート同士
の端末突合わせ部下面の両側にまたがって敷設し、前記
遮水シート同士の突合わせ部の上面に沿って高周波誘導
加熱装置を押当てることによって、前記接着テープの金
属箔を加熱し、該加熱により熱融着性接着剤を加熱溶融
せしめて、遮水シート同士の端末同士を相互に連結する
ようにした。
Further, in the present invention, the adhesive tape is laid across both sides of the lower surfaces of the butt ends of the water-shielding sheets, and the high-frequency induction heating device is pressed along the upper surface of the butt-butted portions of the water-shielding sheets. By heating the metal foil of the adhesive tape, the heat-fusible adhesive was heated and melted by the heating, and the ends of the water-shielding sheets were interconnected.

(作 用) 以上の構成によれば、高周波誘導加熱装置を遮水シート
同士の突合わせ部の上面に沿って押し当つつ移動するこ
とによって順次突合°わせ部は接着テープを介して迅速
に接着される。
(Function) According to the above configuration, by moving the high-frequency induction heating device while pressing it along the upper surface of the abutting portions of the water-shielding sheets, the abutting portions are sequentially bonded together via the adhesive tape. be done.

すなわち、高周波誘導加熱によって、遮水シートを通じ
て接着テープに熱が伝わり、ベースとなる金属箔が加熱
され、この熱によって金属箔上の樹脂が溶融し、加熱装
置の押圧力によって遮水シートの突合わせ部裏面に接着
し、加熱後の樹脂の冷却固化によって接着を完了する。
In other words, through high-frequency induction heating, heat is transmitted to the adhesive tape through the water-shielding sheet, heating the metal foil that serves as the base, melting the resin on the metal foil, and causing the projections of the water-shielding sheet to melt due to the pressing force of the heating device. Adhere to the back side of the mating part, and complete the adhesion by cooling and solidifying the resin after heating.

接着後は金属箔の遮水性によって両シート同士の突合わ
せ部は遮水性を保持する。また、重ねていないので平滑
な仕上がり状態となる。
After adhesion, the butt portion of both sheets maintains its water-shielding properties due to the water-shielding properties of the metal foil. Also, since they are not overlapped, the finish is smooth.

(実 繕 例) 以下、この発明の一実施例を図面を用いて詳細に説明す
る。
(Repair Example) Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

第1図はこの発明に用いる接着テープ1を示している。FIG. 1 shows an adhesive tape 1 used in the present invention.

図における接着テープ1はアルミニウム箔などの金属箔
2の上面に中間のM街および強度付与のためにガラスク
ロス3を積層接着し、その上面に熱融着性接着剤4を一
体に設けたものである。
Adhesive tape 1 in the figure is made by laminating and adhering glass cloth 3 for intermediate M-gauge and strength on the top surface of metal foil 2 such as aluminum foil, and integrally providing heat-fusible adhesive 4 on the top surface. It is.

前記金属箔″1は高周波誘導加熱の可能な素材であるア
ルミ、鉄、コバルト、ニッケル、ステンレスなどの金属
箔材料を用いることができ、単体でもよいが更に強度が
必要な場合には、これら金属箔2に前記ガラスクロス3
およびそのほかに塩ビ、ポリエチレン、ポリプロピレン
、ポリカーボネート、ポリエチレンテレフタレートなど
のフィルムをラミネートすることができる。
The metal foil "1" can be made of metal foil materials such as aluminum, iron, cobalt, nickel, and stainless steel, which are materials that can be heated by high-frequency induction heating.Although it can be used alone, if more strength is required, these metals can be used. The glass cloth 3 is attached to the foil 2.
In addition, films of vinyl chloride, polyethylene, polypropylene, polycarbonate, polyethylene terephthalate, etc. can be laminated.

前記熱融着性接着剤4としては、ポリアミド、未架橋ポ
リウレタン、ポリエステル、ポリエチレンテレフタレー
ト、ボリアリレートなどのように加熱によって溶融する
とともに、前記遮水シートに対する接着性の良好な材料
が選ばれる。
As the heat-fusible adhesive 4, a material such as polyamide, uncrosslinked polyurethane, polyester, polyethylene terephthalate, polyarylate, etc., which melts when heated and has good adhesion to the water-shielding sheet is selected.

そしてこの接着剤4を金属箔2上に設ける方法としては
、溶融樹脂を押出機によってフィルム状に押出し、予め
ガラスクロス3を表面に積層した前記金属箔2に連続的
にラミネートとしてもよいし、溶剤に溶解した樹脂を塗
布してもよい、また、接着剤4の厚みは、使用目的、接
着対象などによって適宜設定できる。
The adhesive 4 may be applied on the metal foil 2 by extruding the molten resin into a film using an extruder and continuously laminating it on the metal foil 2 on which the glass cloth 3 has been previously laminated. A resin dissolved in a solvent may be applied, and the thickness of the adhesive 4 can be appropriately set depending on the purpose of use, the object to be bonded, etc.

次に以上の接着テープ1を用いた遮水シートの接着方法
を第2図を参照して説明する。
Next, a method of adhering a water-blocking sheet using the adhesive tape 1 described above will be explained with reference to FIG. 2.

なお、図における各遮水シート10は、軟質塩ビ、ポリ
エチレン、ポリプロピレン、酢酸ビニル−ポリエチレン
共重合体などの合成高分子シートからなる遮水シート本
体12の上面にフェルト14および不織布16を積層接
着したもので、規格に応じた定尺寸法に形成されている
In addition, each water-shielding sheet 10 in the figure has a felt 14 and a nonwoven fabric 16 laminated and bonded to the upper surface of a water-shielding sheet main body 12 made of a synthetic polymer sheet such as soft PVC, polyethylene, polypropylene, or vinyl acetate-polyethylene copolymer. It is formed to a standard size according to the standard.

そして、両遮水シート10の隣り合う末端突合わせ部1
0aの裏面に、両者にまたがるようにして接着テープ1
の幅を合せて突合わせ部10aの長平方向に沿って法面
すなどの地表面に敷設する。
Then, the adjacent end abutting portions 1 of both water-shielding sheets 10
Place adhesive tape 1 on the back side of 0a, spanning both sides.
They are laid on the ground surface, such as a slope, along the longitudinal direction of the butt portion 10a with the same width.

このセツティング終了の後、突合わせ部10aの上部に
高周波誘導加熱装置18を設置し、重力を加えつつ紙面
と直交する方向、すなわち突合わせ部10aの長手方向
に移動させ、高周波誘導加熱する。この加熱装置18は
市販されているもので、小型軽量で移動性に富む装置で
ある。
After this setting is completed, a high-frequency induction heating device 18 is installed above the abutting portion 10a, and is moved in a direction perpendicular to the plane of the paper, that is, in the longitudinal direction of the abutting portion 10a, while applying gravity to perform high-frequency induction heating. This heating device 18 is commercially available, and is a small, lightweight, and highly mobile device.

この加熱により、加熱対象である金属W32は発熱し、
この発熱によってその上部の熱融着性樹脂4は遮水シー
′ト本体12の下面に融着する。
Due to this heating, the metal W32 to be heated generates heat,
Due to this heat generation, the upper heat-fusible resin 4 is fused to the lower surface of the water-shielding sheet main body 12.

すなわち、前記遮水シート10のフェルト14は断熱性
があり、熱を通しにくいが、このように高周波誘導加熱
を行うことで、金属箔2側が発熱し、これの熱によって
樹脂4を間接的に加熱溶融させる。
That is, the felt 14 of the water-shielding sheet 10 has a heat insulating property and does not allow heat to pass through easily, but by performing high-frequency induction heating in this way, the metal foil 2 side generates heat, and the heat indirectly causes the resin 4 to heat up. Heat and melt.

溶融した樹脂4は、装置18の重量によって突合わせ部
10aの下面のシート本体12に接着し、この状態で装
置18での加熱後、冷却固化し、これによってシート本
体12に対する接着を完了する。
The molten resin 4 adheres to the sheet body 12 on the lower surface of the butt portion 10a due to the weight of the device 18, and in this state, after being heated by the device 18, it cools and solidifies, thereby completing the adhesion to the sheet body 12.

したがって、装置18を駆動しつつ順次突合わせ部10
aに沿って移動させることによって移動速度に応じて接
着されることになるのであり、施工時間が短時間で済む
ことになる。
Therefore, while driving the device 18, the abutting portions 10
By moving it along the line a, it will be bonded according to the moving speed, and the construction time will be shortened.

以上の施工によって突合わせ部10aの下面に沿って両
遮水シート10にまたがった状態で接着テープ1が水密
状態に接着され、この部分の遮水性を保持する。
By the above-described construction, the adhesive tape 1 is adhered in a watertight state along the lower surface of the butt portion 10a, spanning both water-shielding sheets 10, and maintains the water-shielding property of this portion.

その後、第3図の従来例と同じく遮水シート10上に連
節ブロックCが敷き詰められるが、突合わせ部10aは
平坦状となっているので、連節ブロックCが擦れて破損
したり、捲れ上がるなどの弊害も生じない。
Thereafter, the articulated blocks C are spread over the water-shielding sheet 10 in the same way as the conventional example shown in FIG. There are no adverse effects such as rising.

(発明の効果) 以上実施例によって詳細に説明したように、この発明に
よる土木作業用遮水シートおよびその連結方法によれば
、以下の利点がある。
(Effects of the Invention) As described above in detail using the embodiments, the water-shielding sheet for civil engineering work and its connection method according to the present invention has the following advantages.

まず、この発明では、高周波遊動加熱装置を遮水シート
同士の突合わせ部の上面に沿って押し当つつ移動するこ
とによって順次突合わ廿部は接着テープを介して迅速に
接着されるため、施工性が良好である。
First, in this invention, by moving the high-frequency floating heating device while pressing it along the top surface of the butt portions of the water-shielding sheets, the butt portions are quickly bonded via adhesive tape, so that the construction is easy. Good properties.

接着後は金属箔の遮水性によって両シート同士の突合わ
せ部は遮水性を保持する。また、シート同士は重ねてい
ないので平滑であり、連節ブロックの敷き詰めの際の障
害とならない。
After adhesion, the butt portion of both sheets maintains its water-shielding properties due to the water-shielding properties of the metal foil. In addition, since the sheets are not overlapped, they are smooth and do not become an obstacle when laying the articulated blocks.

したがって、遮水シートを複数枚突き合わせた状態で法
面、その曲進水性の要求される地盤面に敷き詰めたとし
ても、その突合わせ部分の遮水性が低下したり洗堀され
るなどの惧れがなくなり、このため、規格化された一定
寸法の遮水シートを用いることができる。
Therefore, even if multiple sheets of water-shielding sheets are butted against each other and laid on a slope or on a ground surface that requires curved launching properties, there is a risk that the water-shielding properties of the butted portions will decrease or the sheets will be scoured. Therefore, it is possible to use a standardized water-blocking sheet with a certain size.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明に用いる接着テープの模式的断面図、
第2図は同接着テープを用いた遮水シートの突合わせ部
の連結方法を示す断面図、第3図は土木工事用遮水シー
トの使用例を示す断面図である。 1・・・接着テープ 2・・・金属箔 4・・・熱融着性接着剤 10・・・遮水シート 10a・・・末端突合わせ部 18・・・高周波誘導加熱装置
FIG. 1 is a schematic cross-sectional view of the adhesive tape used in this invention.
FIG. 2 is a cross-sectional view showing a method of connecting the butt portions of a water-blocking sheet using the same adhesive tape, and FIG. 3 is a cross-sectional view showing an example of use of the water-blocking sheet for civil engineering work. 1... Adhesive tape 2... Metal foil 4... Heat fusion adhesive 10... Water shielding sheet 10a... End butt portion 18... High frequency induction heating device

Claims (2)

【特許請求の範囲】[Claims] (1)法面に敷設される遮水シート同士の隣り合う端末
突合わせ部の下面が加熱用金属箔の片面に熱融着性接着
剤を塗布した接着テープにより連結したことを特徴とす
る工事用遮水シート。
(1) Construction characterized by connecting the lower surfaces of adjacent terminal butt parts of water-shielding sheets laid on slopes with adhesive tape coated with heat-adhesive adhesive on one side of heating metal foil. Waterproof sheet for use.
(2)加熱用金属箔の片面に熱融着性接着剤を塗布した
接着テープを、遮水シート同士の端末突合わせ部下面の
両側にまたがって敷設し、前記遮水シート同士の突合わ
せ部の上面に沿って高周波誘導加熱装置を押当てること
によって、前記接着テープの金属箔を加熱し、該加熱に
より熱融着性接着剤を加熱溶融せしめて、遮水シート同
士の端末同士を相互に接着するようにしたことを特徴と
する土木工事用遮水シートの連結方法。
(2) Adhesive tape with a heat-fusible adhesive applied to one side of the heating metal foil is laid across both sides of the bottom surfaces of the butt ends of the water-shielding sheets, and the butt portions of the water-shielding sheets are laid down. By pressing a high-frequency induction heating device along the top surface, the metal foil of the adhesive tape is heated, and the heat melts the heat-fusible adhesive, thereby bonding the ends of the water-shielding sheets to each other. A method for connecting water-blocking sheets for civil engineering work, characterized by adhesive bonding.
JP30021788A 1988-11-28 1988-11-28 Water stopping sheet for civil engineering work and connecting method thereof Pending JPH02147711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30021788A JPH02147711A (en) 1988-11-28 1988-11-28 Water stopping sheet for civil engineering work and connecting method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30021788A JPH02147711A (en) 1988-11-28 1988-11-28 Water stopping sheet for civil engineering work and connecting method thereof

Publications (1)

Publication Number Publication Date
JPH02147711A true JPH02147711A (en) 1990-06-06

Family

ID=17882130

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30021788A Pending JPH02147711A (en) 1988-11-28 1988-11-28 Water stopping sheet for civil engineering work and connecting method thereof

Country Status (1)

Country Link
JP (1) JPH02147711A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005066550A (en) * 2003-08-27 2005-03-17 Mitsuboshi Belting Ltd Water-blocking-sheet fixing structure on wall surface and fixing method of the sheet on wall surface
JP2006168291A (en) * 2004-12-20 2006-06-29 Sho Bond Constr Co Ltd Metal fitting for welding and fixation by high frequency induction heating method
JP2010133203A (en) * 2008-12-08 2010-06-17 National Agriculture & Food Research Organization Leakage repairing material for concrete water use structure, and leakage repairing method using the repairing material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005066550A (en) * 2003-08-27 2005-03-17 Mitsuboshi Belting Ltd Water-blocking-sheet fixing structure on wall surface and fixing method of the sheet on wall surface
JP2006168291A (en) * 2004-12-20 2006-06-29 Sho Bond Constr Co Ltd Metal fitting for welding and fixation by high frequency induction heating method
JP4649196B2 (en) * 2004-12-20 2011-03-09 ショーボンド建設株式会社 Mounting bracket for welding and fixing by high frequency induction heating method
JP2010133203A (en) * 2008-12-08 2010-06-17 National Agriculture & Food Research Organization Leakage repairing material for concrete water use structure, and leakage repairing method using the repairing material

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