JP2002364297A - Method for jointing between different kinds of waterproof materials - Google Patents
Method for jointing between different kinds of waterproof materialsInfo
- Publication number
- JP2002364297A JP2002364297A JP2001175424A JP2001175424A JP2002364297A JP 2002364297 A JP2002364297 A JP 2002364297A JP 2001175424 A JP2001175424 A JP 2001175424A JP 2001175424 A JP2001175424 A JP 2001175424A JP 2002364297 A JP2002364297 A JP 2002364297A
- Authority
- JP
- Japan
- Prior art keywords
- waterproofing
- different types
- waterproof
- material sheets
- resin
- 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.)
- Granted
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
- Building Environments (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、開削トンネルなど
の地下構造物先付防水等における異種防水材料間の、簡
易で、かつ遮水性に優れた防水材料相互間のジョイント
を可能とする新たな接合方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a new type of waterproof material having a simple and excellent water-shielding property, which can be used for waterproofing underground structures such as open-cut tunnels. It relates to a joining method.
【０００２】[0002]
【従来の技術】地下鉄駅部等の開削トンネルに代表され
る地下構造物等の漏水を阻止する方法は、コンクリート
の打設前に防水施工するいわゆる先防水とコンクリート
躯体を形成した後に実施する後防水が採用されている
が、施工コスト等の面から先防水が主流になっている。2. Description of the Related Art A method of preventing water leakage from an underground structure such as an open tunnel in a subway station or the like is a method of waterproofing before concrete is poured and a method of waterproofing after forming a concrete frame. Although waterproofing is adopted, waterproofing is predominant in terms of construction costs and the like.
【０００３】この先防水の代用的な方法としては、ソイ
ルセメント壁（例えば、ＳＭＷ）等の土留め工壁面ある
いは床面上に、ゴム系、アスファルト系、ゴム・アスフ
ァルト系、オレフィン系、エチレン酢酸ビニル系等の連
続被膜からなる防水シート、あるいはベントナイトに代
表される水膨潤性材料を不織布で一体化したマット状シ
ートからなる遮水材料を取り付けた後にコンクリートを
打設する、シート防水工法が採用されている。[0003] As an alternative method of waterproofing, rubber-based, asphalt-based, rubber-asphalt-based, olefin-based, ethylene-vinyl acetate, etc. are used on earth retaining walls such as soil cement walls (eg, SMW) or floors. A sheet waterproofing method is adopted in which a concrete sheet is cast after attaching a waterproof sheet made of a continuous film such as a continuous film or a water-blocking material consisting of a mat-like sheet in which a water-swellable material typified by bentonite is integrated with a nonwoven fabric. ing.
【０００４】また、ＳＭＷや床面に対して、不織布を敷
設した後にウレタン系、ゴム・アスファルト系からなる
防水液を吹き付け塗工する、いわゆる塗膜防水を施した
後にシート防水と同様にコンクリートを打設する吹き付
け塗膜防水法が広く一般的に採用実施されている。[0004] Further, after laying a nonwoven fabric on the SMW or floor surface, a waterproofing liquid composed of urethane or rubber / asphalt is sprayed and applied. The sprayed coating waterproofing method for casting is widely and generally employed.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、従来か
ら採用されている各種の先付用の防水材料および方法に
は一長一短があり、また、開削トンネル等の地下構造物
の各部位における異なる要求防水レベルおよび施工作業
性の難易度から、施工工区、部位によって複数の防水遮
水材料、方法を組み合わせて施工することが、経済性、
防水遮水性の面から求められている。すなわち、連続防
水被膜からなるシート防水は、その防水膜自体が高度な
遮水性を保有するために、施工を完璧に実施すれば高度
な遮水防水を確保し得る。しかし、開削トンネル等の地
下構造物は、複雑な曲面を有するコーナー部やコンクリ
ート躯体を土留壁等に固定するための棒状金属製のセパ
レーターが多数存在し、施工作業並びに当該部の遮水防
水性の確保に難がある。However, the various waterproofing materials and methods used in the prior art that have been conventionally employed have advantages and disadvantages, and different required waterproofing levels for each part of an underground structure such as an open tunnel. From the difficulty of construction workability, it is economical to combine multiple waterproof water-blocking materials and methods depending on the construction section and site,
It is required from the viewpoint of waterproof and water shielding. That is, since the waterproofing film itself has a high level of water barrier property, the sheet waterproofing composed of the continuous waterproofing film can secure a high level of waterproofness and waterproofness if the construction is performed perfectly. However, underground structures such as excavation tunnels have many curved metal corners and rod-shaped metal separators for fixing concrete skeletons to earth retaining walls, etc. There is difficulty in securing.
【０００６】一方、塗膜防水工は、防水液を吹き付ける
ために、シート防水における施工作業面の難点が少ない
というメリットがあるが、防水液吹き付けが作業員の目
測で実施されるために、その塗膜厚さを均一化すること
が困難であり、結果的に防水上の欠陥が点在する防水工
とならざるを得ないという欠点を有している。[0006] On the other hand, the coating film waterproofing technique has an advantage that there is little difficulty in the construction work surface in the sheet waterproofing because the waterproofing liquid is sprayed. It is difficult to make the coating film thickness uniform, and as a result, there is a drawback that a waterproofing work in which defects in waterproofing are scattered must be performed.
【０００７】このため、開削トンネル等における地下構
造物の先防水は、その各部位において要求される遮水防
止レベルや施工作業性を勘案して各種の異なる防水材料
あるいは防水工法を選択することが要求され、施工部位
あるいは工区によって、適宜使い分ける方法が最も合理
的である。しかし、従来技術による異種の防水材料間の
ジョイントは、適切な方法、材料がなく、やむを得ず経
済性を無視して単一の防水材料、防水工法を選択、ある
いは、性能的に不満足を承知の上で異種材料間をシリコ
ン、ウレタン、ゴムアスファルト系等の粘着性のコーキ
ング剤で処理している。さらには、施工工区における最
大公約的な考えから完璧な遮水防水をあきらめて、より
適正であると判断し得る防水工法を採用しているのが現
状である。[0007] For this reason, for waterproofing of underground structures in open-cut tunnels and the like, it is necessary to select various different waterproofing materials or waterproofing methods in consideration of the water-blocking prevention level required for each part and construction workability. The most reasonable method is required, and it is appropriately used depending on the construction site or construction section. However, joints between different types of waterproofing materials according to the prior art are not suitable methods and materials, and there is no choice but to choose a single waterproofing material and waterproofing method ignoring economics, or be aware of unsatisfactory performance. In this method, different materials are treated with an adhesive caulking agent such as silicon, urethane, or rubber asphalt. Furthermore, the current state of the art is to give up impervious waterproofing and waterproofing methods that can be judged to be more appropriate, based on the maximum promise in the construction zone.
【０００８】このため、現在の開削トンネル用等の先付
防水工は、施工作業性および遮水防水面に問題を抱えて
おり、さらにいたずらに防水工費が嵩むのが現状であ
る。[0008] For this reason, current waterproofing works for cutting tunnels and the like have problems in construction workability and waterproofing and waterproofing, and the cost of waterproofing work is unnecessarily high at present.
【０００９】本発明は、上記状況に鑑みて、接合作業が
容易で、かつ、高度な遮水防水を可能とする異種防水材
料シート間の接合方法を提供することを目的とする。The present invention has been made in view of the above circumstances, and has as its object to provide a method of joining between different types of waterproof material sheets that allows easy joining work and enables high waterproofness.
【００１０】なお、ここで地下構造物とは、開削トンネ
ル、地下駅、線路下横断構造物、Ｕ型擁壁など、地盤中
に構築される構造物をいう。これらの構造物では、施工
後に地下水による漏れが問題となるため、一般的に防水
工を施工する。[0010] Here, the underground structure means a structure constructed in the ground, such as an open tunnel, an underground station, a crossing structure under a track, a U-shaped retaining wall, and the like. In these structures, waterproofing is generally applied because leakage from groundwater becomes a problem after construction.
【００１１】[0011]
【課題を解決するための手段】本発明は、上記目的を達
成するために、 〔１〕異種防水材料シート間の接合方法において、異種
防水材料シートの端部を重ね合わせ、このシートの端部
に被膜形成温度が３０℃以下からなる防水樹脂液を、そ
の有効成分で５０〜１０００ｇ／ｍ2 を吹き付け塗工す
ることを特徴とする。In order to achieve the above object, the present invention provides: [1] In a joining method between different types of waterproof material sheets, the end portions of different types of waterproof material sheets are overlapped with each other, A waterproof resin liquid having a film formation temperature of 30 ° C. or lower is sprayed at 50 to 1000 g / m 2 with the active ingredient.
【００１２】〔２〕上記〔１〕記載の異種防水材料シー
ト間の接合方法において、前記防水樹脂液の主成分が、
ゴム・アスファルト系樹脂であることを特徴とする。[2] In the bonding method between different types of waterproof material sheets according to [1], the main component of the waterproof resin liquid is
It is a rubber / asphalt resin.
【００１３】〔３〕上記〔２〕記載の異種防水材料シー
ト間の接合方法において、前記防水樹脂液の主成分が、
ゴム・アスファルト系の樹脂固形分に対して、酸化珪素
を含む無機粉末を２０〜６０質量％配合してなることを
特徴とする。[3] In the bonding method between different kinds of waterproofing material sheets according to [2], the main component of the waterproofing resin liquid is
It is characterized in that 20 to 60% by mass of an inorganic powder containing silicon oxide is blended with respect to a rubber / asphalt resin solid content.
【００１４】〔４〕上記〔１〕、〔２〕又は〔３〕記載
の異種防水材料シート間の接合方法において、前記異種
防水材料シートの一方は、このシートの少なくとも片面
の表層樹脂が、酢酸ビニル８０〜９９質量％のエチレン
−酢酸ビニル共重合樹脂（Ａ）および酢酸ビニル含有量
５０〜７５質量％エチレン−酢酸ビニル共重合樹脂
（Ｂ）からなり、その配合比（質量比）Ａ／Ｂを０．２
〜５とすることを特徴とする。[4] In the bonding method between the different types of waterproofing material sheets according to the above [1], [2] or [3], one of the different types of waterproofing material sheets may be made of acetic acid. 80-99% by mass of ethylene-vinyl acetate copolymer resin (A) and 50-75% by mass of vinyl acetate ethylene-vinyl acetate copolymer resin (B), and their compounding ratio (mass ratio) A / B 0.2
-5.
【００１５】〔５〕上記〔１〕、〔２〕、〔３〕又は
〔４〕記載の異種防水材料シート間の接合方法におい
て、前記異種防水材料シートの重ね合わせ部の周辺上
に、目付１００〜１０００ｇ／ｍ2 の不織布を固定した
後に、前記防水樹脂液を吹き付け塗工することを特徴と
する。[5] In the bonding method between the different types of waterproof material sheets according to the above [1], [2], [3] or [4], a basis weight of 100 is provided around the overlapping portion of the different types of waterproof material sheets. After fixing the nonwoven fabric of up to 1000 g / m 2, the waterproof resin solution is sprayed and applied.
【００１６】[0016]
【発明の実施の形態】以下、本発明の実施の形態につい
て、詳細に説明する。Embodiments of the present invention will be described below in detail.
【００１７】本発明における防水シートの原反は、基本
的に連続被膜からなるものであればいかなる種類でもよ
いため、何ら限定の必要はなく、開削トンネルに一般的
に使用されている各種の防水シート、例えば、ゴム系シ
ート、オレフィン系樹脂シート、不織布にアスファルト
系防水剤あるいはゴム・アスファルト系防水剤を含浸し
た防水シート等が利用、適用可能である。The raw sheet of the waterproof sheet in the present invention may be of any kind as long as it is basically composed of a continuous film, and is not limited at all. A sheet, for example, a rubber sheet, an olefin resin sheet, a waterproof sheet in which a nonwoven fabric is impregnated with an asphalt-based waterproofing agent or a rubber / asphalt-based waterproofing agent, or the like can be used and applied.
【００１８】さらに、高度な遮水防水性を確保する面か
ら、より好ましい防水シートとしては、異種防水材料シ
ートの一方における片側表層樹脂が、酢酸ビニル８０〜
９９質量％のエチレン−酢酸ビニル共重合樹脂（Ａ）お
よび酢酸ビニル含有量５０〜７５質量％のエチレン−酢
酸ビニル共重合樹脂（Ｂ）を配合比（質量比）Ａ／Ｂ＝
１／５〜５／１の比率で混合し、それを５０〜３００ｇ
／ｍ2 塗工した防水シートがより好ましい。この際、上
記の（Ａ）、（Ｂ）からなる樹脂層は、当然、コンクリ
ート面側（トンネル等の地下構造内の空間側）に配置す
る。かかるシートを用いると、優れたシート／コンクリ
ート間密着性を発揮するために、コンクリート／シート
界面における水の横走りを阻止し、高度な遮水防水性が
確保される。Further, from the viewpoint of ensuring a high level of waterproofness and waterproofness, a more preferable waterproof sheet is that one side surface resin of one of the different types of waterproof material sheets is made of vinyl acetate 80-80.
Combination ratio (mass ratio) of 99% by mass of ethylene-vinyl acetate copolymer resin (A) and 50-75% by mass of vinyl acetate content of ethylene-vinyl acetate copolymer resin (B) A / B =
Mix at a ratio of 1/5 to 5/1 and mix it with 50 to 300 g
/ M 2 coated waterproof sheet is more preferred. At this time, the resin layer composed of the above (A) and (B) is naturally disposed on the concrete surface side (space side in an underground structure such as a tunnel). When such a sheet is used, in order to exhibit excellent adhesion between the sheet and the concrete, horizontal running of water at the interface between the concrete and the sheet is prevented, and high waterproof and waterproof properties are secured.
【００１９】一方、本発明の特徴である異種防水材料シ
ート重ね合わせ部ならびにその周辺部に吹き付ける防水
樹脂液は、それを構成する樹脂の被膜形成温度が３０℃
以下であれば良く、ごく一般的に開削トンネル吹き付け
塗膜防水剤が使用可能であり、特に限定する必要はな
く、例えば、ストレートあるいはブローン・アスファル
トからなるアスファルト系、スチレン−ブタジエン系に
代表されるゴムを前記のアスファルトに配合したゴム・
アスファルト系、酢酸ビニル含有率が４０〜８０質量％
のエチレン−酢酸ビニル共重合系樹脂および／またはウ
レタン系から好適に使用できる。その中でも特に、各種
の防水シートとの密着性に優れるゴム・アスファルト系
防水剤が好ましく、さらに、酸化珪素を含む無機粉末を
２０〜６０質量％配合してなる防水樹脂液を吹き付け塗
工することは、この吹き付け樹脂層とコンクリート間の
密着性とより高度な水密性を得られるため望ましい。ま
た、前記の樹脂を防水液とする方法は、界面活性剤を用
いて乳化、有機溶剤に溶解、さらには、樹脂の重合を乳
化重合とする等が利用可能である。On the other hand, the waterproof resin liquid sprayed on the overlapping portion of the different types of waterproof material sheet and its peripheral portion, which is a feature of the present invention, has a resin forming temperature of 30 ° C.
As long as it is the following, an open-cut tunnel spray coating waterproofing agent can be used very generally, and there is no particular limitation. For example, asphalt-based straight or blown asphalt-based, styrene-butadiene-based Rubber blended with the above asphalt rubber
Asphalt-based, vinyl acetate content of 40 to 80% by mass
From ethylene-vinyl acetate copolymer resins and / or urethane resins. Among them, a rubber / asphalt-based waterproofing agent having excellent adhesion to various waterproofing sheets is particularly preferable, and a waterproof resin liquid containing 20 to 60% by mass of an inorganic powder containing silicon oxide is spray-coated. Is preferable because the adhesiveness between the sprayed resin layer and the concrete and higher watertightness can be obtained. In addition, as a method of using the resin as a waterproofing liquid, emulsification using a surfactant, dissolution in an organic solvent, and further, polymerization of the resin may be used as emulsion polymerization.
【００２０】また、これら樹脂液に顔料、安定剤、硬化
剤等の添加物を配合しても何ら問題ない。また、上記の
防水塗膜液を１種あるいは２種以上混合しても、あるい
は、１種を塗工したのちに、多種の防水塗膜液を別々に
塗工することも本発明の効果を害するものではない。There is no problem if additives such as pigments, stabilizers and curing agents are added to these resin liquids. The effect of the present invention can also be obtained by coating one or more of the above-mentioned waterproof coating liquids, or by applying one kind and then coating various kinds of waterproof coating liquids separately. No harm.
【００２１】これら塗工する樹脂液塗布量は、有効成分
で５０〜１０００ｇ／ｍ2 、好ましくは、１００〜７０
０ｇ／ｍ2 、さらに好ましくは、２００〜６００ｇ／ｍ
2 が適当である。 （実施例）酢酸ビニル含有量６０質量％、ＭＦＩ＝１５
ｇ／１０ｍｉｎからなるエチレン−酢酸ビニル共重合樹
脂（大日本インキ社製「エバスレン４２０Ｐ」）１００
質量部に炭酸カルシウム１０質量部とシリコン系滑剤１
質量部を加え、１５０℃のカレンダーロールで厚さ０．
５ｍｍのシートを成形しながら５５０ｄｔｅｘのポリエ
ステルフィラメントからなる平織組織織物（打ち込み密
度：タテ１９本／インチ、ヨコ：２０本／インチ）を線
圧８００Ｎ／ｍで貼り合わせ、これを一旦巻き取った後
に、もう一度繊維露出面に前記と同一厚みの樹脂シート
を貼り合わせて織物をほぼ厚さ方向の中央に配するター
ポリンを作製した。The amount of the resin solution to be applied is 50 to 1000 g / m 2 of the active ingredient, preferably 100 to 70 g / m 2 .
0 g / m 2 , more preferably 200 to 600 g / m 2
2 is appropriate. (Example) Vinyl acetate content 60% by mass, MFI = 15
g / 10min ethylene-vinyl acetate copolymer resin (“Ebaslen 420P” manufactured by Dainippon Ink) 100
10 parts by weight of calcium carbonate and 1 part by weight of silicone lubricant
Parts by mass and a thickness of 0.1 mm with a calender roll at 150 ° C.
While forming a 5 mm sheet, a plain woven fabric made of polyester filaments of 550 dtex (implantation density: vertical 19 pieces / inch, horizontal: 20 pieces / inch) is bonded at a linear pressure of 800 N / m, and once wound up, Then, a resin sheet having the same thickness as that described above was bonded to the exposed fiber surface again to produce a tarpaulin in which the woven fabric was disposed substantially at the center in the thickness direction.
【００２２】さらに、その片面に酢酸ビニル含有量９０
質量％のエチレン−酢酸ビニル共重合体の水性エマルジ
ョン（株式会社クラレ製「パンフレックスＯＭ−６００
０」）と酢酸ビニル含有量６５質量％のエチレン−酢酸
ビニル共重合体の水性エマルジョン（株式会社クラレ製
「パンフレックスＯＭ−２０００」）を質量比で同量を
混合した樹脂液で前記ターポリンの片面に有効成分で目
付１００ｇ／ｍ2 となる塗工処理をして、１０５℃で乾
燥した後に、１８０℃で熱処理しながら線圧５００Ｎ／
ｍを加えて原反の防水シートを生産した。Further, on one side, a vinyl acetate content of 90
% By mass of an aqueous emulsion of an ethylene-vinyl acetate copolymer ("PANFLEX OM-600" manufactured by Kuraray Co., Ltd.)
0 ") and an aqueous emulsion of an ethylene-vinyl acetate copolymer having a vinyl acetate content of 65% by mass (" Panflex OM-2000 "manufactured by Kuraray Co., Ltd.) in the same amount by weight. One side is coated with an active ingredient to give a basis weight of 100 g / m 2 , dried at 105 ° C., and then subjected to a linear pressure of 500 N /
m to produce a tarpaulin sheet.
【００２３】このシートとゴム・アスファルト系防水シ
ート（株式会社田島ルーフィング社製「ガムロンフォル
トＭ」）を幅１０ｃｍで重ね合わせ、さらにその上に目
付３００ｇ／ｍ2 のポリエステル系ニーパン不織布を重
ね、釘打ちにより固定した。この部分にウレタン系吹き
付け塗膜防水剤（株式会社物産クリエイティブ製「スプ
ラッシュ」）をエアガンを用いて噴霧し、有効成分で約
５００ｇ／ｍ2 となるように塗工し、２０℃で４８時間
放置して本発明の供試験体を作製した。この供試験体の
各部位の防水性を、ＪＩＳ Ｌ１０９２Ｂ法（高水圧
法）で評価したところ、いずれの箇所も５００ｋＰａ以
上で良好だった。This sheet and a rubber / asphalt waterproof sheet ("Gamron Fault M" manufactured by Tajima Roofing Co., Ltd.) are superposed with a width of 10 cm, and a polyester-based knee nonwoven fabric with a basis weight of 300 g / m 2 is further superposed thereon. It was fixed by nailing. This part is sprayed with a urethane spray paint waterproofing agent (“Splash” manufactured by Bussan Creative Co., Ltd.) using an air gun, coated with an effective ingredient to about 500 g / m 2, and left at 20 ° C. for 48 hours. Thus, a test specimen of the present invention was prepared. When the waterproofness of each part of this test piece was evaluated by the JIS L1092B method (high water pressure method), all parts were good at 500 kPa or more.
【００２４】図１は、本発明の実施例を示す異種防水材
料間の接合工程図である。FIG. 1 is a view showing a joining process between different types of waterproof materials according to an embodiment of the present invention.
【００２５】（１）まず、図１（ａ）に示すように、種
類の異なる防水材料シート１，２の端部を重ね合わせ
る。(1) First, as shown in FIG. 1A, the end portions of different types of waterproof material sheets 1 and 2 are overlapped.
【００２６】（２）次に、図１（ｂ）に示すように、種
類の異なる防水材料シート１，２の重ね合わせ部を覆う
ように、被膜形成温度が３０℃以下からなる防水樹脂液
３を、その有効成分で５０〜１０００ｇ／ｍ2 を直接吹
き付け塗工する。(2) Next, as shown in FIG. 1B, a waterproof resin liquid 3 having a film forming temperature of 30 ° C. or less is provided so as to cover the overlapping portions of the different types of waterproof material sheets 1 and 2. Is sprayed directly with 50 to 1000 g / m 2 of the active ingredient.
【００２７】また、異種防水材料シートの一方あるいは
両者が、吹き付け塗膜防水剤との密着性に劣る場合に
は、以下のような施工を講じることができる。If one or both of the different types of waterproofing material sheets have poor adhesion to the spray coating waterproofing agent, the following construction can be taken.
【００２８】図２は、本発明の他の実施例を示す異種防
水材料間の接合工程図である。FIG. 2 is a view showing a joining process between different kinds of waterproof materials according to another embodiment of the present invention.
【００２９】（１）まず、図２（ａ）に示すように、種
類の異なる防水材料シート１１，１２の端部を重ね合わ
せる。(1) First, as shown in FIG. 2 (a), ends of different types of waterproof material sheets 11, 12 are overlapped.
【００３０】（２）次に、図２（ｂ）に示すように、種
類の異なる防水材料シート１１，１２の重ね合わせ部の
上部に、目付１００〜１０００ｇ／ｍ2 の不織布１３を
取付ける。つまり、その重ね合わせ部にその不織布１３
を釘打ち、接着剤等で固定する。(2) Next, as shown in FIG. 2B, a nonwoven fabric 13 having a basis weight of 100 to 1000 g / m 2 is attached to the upper portion of the overlapping portion of the different types of waterproof material sheets 11 and 12. That is, the nonwoven fabric 13 is
And fix it with an adhesive or the like.
【００３１】（３）次に、図２（ｃ）に示すように、そ
の重ね合わせ部に被膜形成温度が３０℃以下からなる防
水樹脂液１４を、その有効成分で５０〜１０００ｇ／ｍ
2 を吹き付け塗工する。(3) Next, as shown in FIG. 2 (c), a waterproof resin liquid 14 having a film forming temperature of 30 ° C. or less is applied to the overlapped portion with 50 to 1000 g / m 2 as an active ingredient.
Spray and apply 2 .
【００３２】このような施工により、より高度な異種防
水材料間の遮水防水性を確保することができる。With this construction, it is possible to ensure a higher level of waterproofness and waterproofness between different types of waterproof materials.
【００３３】本発明は、開削トンネル等の地下構造物の
各部位における異なる遮水防水性の要求レベルあるいは
防水施工作業性の難易度等により、異なる防水材料を適
宜選択して採用・適用し、より合理的な防水施工を可能
とする。このため、開削トンネル先付防水に代用される
地下構造物、山岳トンネル等の遮水防水に広く利用可能
である。According to the present invention, different waterproofing materials are appropriately selected and adopted / applied according to the required level of waterproofness or waterproofing workability in each part of an underground structure such as an open-cut tunnel. Enables more rational waterproofing construction. For this reason, it can be widely used for waterproofing of underground structures, mountain tunnels, and the like, which can be used in place of waterproofing for excavation tunnels.
【００３４】なお、本発明は上記実施例に限定されるも
のではなく、本発明の趣旨に基づいて種々の変形が可能
であり、それらを本発明の範囲から排除するものではな
い。It should be noted that the present invention is not limited to the above embodiment, and various modifications can be made based on the spirit of the present invention, and these are not excluded from the scope of the present invention.
【００３５】[0035]
【発明の効果】以上、詳細に説明したように、本発明に
よれば、以下のような効果を奏することができる。As described above, according to the present invention, the following effects can be obtained.
【００３６】（Ａ）接合作業が容易で、かつ、高度な遮
水防水を施すことができる。(A) The joining operation is easy and a high degree of waterproof and waterproof can be provided.
【００３７】（Ｂ）開削トンネル等の地下構造物の各部
位における異なる遮水防水性の要求レベルあるいは防水
施工作業性の難易度等により、異なる防水材料を適宜選
択して採用・適用し、より合理的な防水施工を行うこと
ができる。(B) Different waterproof materials are appropriately selected and adopted / applied according to the required level of waterproof / waterproof property or the difficulty of the waterproofing workability at each part of the underground structure such as the open tunnel, etc. Reasonable waterproofing can be performed.
【図１】本発明の実施例を示す異種防水材料間の接合工
程図である。FIG. 1 is a diagram illustrating a joining process between different types of waterproof materials according to an embodiment of the present invention.
【図２】本発明の他の実施例を示す異種防水材料間の接
合工程図である。FIG. 2 is a joining process diagram between different types of waterproof materials according to another embodiment of the present invention.
１，２，１１，１２ 種類の異なる防水材料シート ３，１４ 被膜形成温度が３０℃以下からなる防水樹
脂液 １３ 不織布1,2,11,12 different types of waterproof material sheets 3,14 Waterproof resin liquid whose coating temperature is 30 ° C or less 13 Non-woven fabric
───────────────────────────────────────────────────── フロントページの続き (71)出願人 501232528 株式会社複合技術研究所 東京都港区赤坂２−15−16 赤坂ふく源ビ ル７Ｆ (71)出願人 000149206 株式会社大阪防水建設社 大阪府大阪市天王寺区餌差町７番６号 (72)発明者 矢口 直幸 東京都国分寺市光町二丁目８番地38 財団 法人 鉄道総合技術研究所内 (72)発明者 舘山 勝 東京都国分寺市光町二丁目８番地38 財団 法人 鉄道総合技術研究所内 (72)発明者 小山 幸則 東京都国分寺市光町二丁目８番地38 財団 法人 鉄道総合技術研究所内 (72)発明者 清水 満 東京都渋谷区代々木二丁目２番２号 東日 本旅客鉄道株式会社内 (72)発明者 藤本 英己 東京都渋谷区代々木二丁目２番２号 東日 本旅客鉄道株式会社内 (72)発明者 西澤 政晃 東京都渋谷区代々木二丁目２番２号 東日 本旅客鉄道株式会社内 (72)発明者 花森 一郎 東京都中央区日本橋３丁目１番６号 株式 会社クラレ内 (72)発明者 出水 俊介 東京都中央区日本橋３丁目１番６号 株式 会社クラレ内 (72)発明者 田村 幸彦 東京都港区赤坂２−15−16 株式会社複合 技術研究所内 (72)発明者 池田 幸雄 宮城県仙台市青葉区吉成３−17−２ Ｆターム(参考） 2D055 BA05 BA07 HA07 KB16 LA02 2E001 DA01 FA29 FA30 GA06 GA24 GA28 HA04 HD11 HE01 LA04 4J040 BA221 CA171 HA306 JB01 KA03 LA07 MA10 MA12 MB03 NA12 PA30 ──────────────────────────────────────────────────の Continuation of the front page (71) Applicant 501232528 Composite Technology Research Institute, Inc. 2-15-16 Akasaka, Minato-ku, Tokyo 7F Akasaka Fukugen Building 7F (71) Applicant 000149206 Osaka Waterproofing Construction Co., Ltd. Osaka, Osaka (72) Inventor Naoyuki 2-8-8 Hikaricho, Kokubunji, Tokyo Metropolitan Railway Technical Research Institute (72) Inventor Masaru Tateyama, 2-8 Hikaricho, Kokubunji, Tokyo No. 38 Inside the Railway Technical Research Institute (72) Inventor Yukinori Koyama 2-chome, Hikarimachi 2-chome, Kokubunji-shi, Tokyo (72) Inventor Mitsuru Shimizu 2-2-2 Yoyogi Shibuya-ku, Tokyo No. 2 East Japan Railway Company (72) Inventor Hidemi Fujimoto 2-2-2 Yoyogi Shibuya-ku, Tokyo East Japan Railway Company Inside the company (72) Inventor Masaaki Nishizawa 2-2-2 Yoyogi, Shibuya-ku, Tokyo East Japan Railway Company (72) Inventor Ichiro Hanamori 3-6-1 Nihonbashi, Chuo-ku, Tokyo Kuraray Co., Ltd. (72) Inventor Shunsuke Izumi 3-6-6 Nihonbashi, Chuo-ku, Tokyo Inside Kuraray Co., Ltd. (72) Inventor Yukihiko Tamura 2-15-16 Akasaka, Minato-ku, Tokyo Inside Complex Technology Research Institute Co., Ltd. (72) Invention Person Yukio Ikeda 3-17-2 Yoshinari, Aoba-ku, Sendai, Miyagi F-term (reference) 2D055 BA05 BA07 HA07 KB16 LA02 2E001 DA01 FA29 FA30 GA06 GA24 GA28 HA04 HD11 HE01 LA04 4J040 BA221 CA171 HA306 JB01 KA03 LA07 MA10 MA12 MB03 NA12 PA30
Claims (5)
せ、該シートの端部に被膜形成温度が３０℃以下からな
る防水樹脂液を、その有効成分で５０〜１０００ｇ／ｍ
2 を吹き付け塗工することを特徴とする異種防水材料シ
ート間の接合方法。1. An end portion of a sheet of a different kind of waterproofing material is overlapped, and a waterproofing resin liquid having a film formation temperature of 30 ° C. or less is applied to the end portion of the sheet, and an effective component thereof is 50 to 1000 g / m 2.
2. A method of joining between different types of waterproof material sheets, characterized by spray-coating 2 .
接合方法において、前記防水樹脂液の主成分が、ゴム・
アスファルト系樹脂であることを特徴とする異種防水材
料シート間の接合方法。2. The method according to claim 1, wherein a main component of the waterproof resin liquid is a rubber / liquid material.
A method for joining between different types of waterproof material sheets, which is an asphalt-based resin.
接合方法において、前記防水樹脂液の主成分が、ゴム・
アスファルト系の樹脂固形分に対して酸化珪素を含む無
機粉末を２０〜６０質量％配合してなることを特徴とす
る異種防水材料シート間の接合方法。3. The method for bonding between different types of waterproofing material sheets according to claim 2, wherein the main component of the waterproofing resin liquid is a rubber / liquid material.
A method for bonding between different types of waterproof material sheets, characterized in that 20 to 60% by mass of an inorganic powder containing silicon oxide is blended with respect to an asphalt-based resin solid content.
シート間の接合方法において、前記異種防水材料シート
の一方は、該シートの少なくとも片面の表層樹脂が、酢
酸ビニル８０〜９９質量％のエチレン−酢酸ビニル共重
合樹脂（Ａ）および酢酸ビニル含有量５０〜７５質量％
のエチレン−酢酸ビニル共重合樹脂（Ｂ）からなり、そ
の配合比（質量比）Ａ／Ｂを０．２〜５とすることを特
徴とする異種防水材料シート間の接合方法。4. The bonding method between different types of waterproofing material sheets according to claim 1, 2 or 3, wherein one of the different types of waterproofing material sheets has a surface resin on at least one side of the sheet of 80 to 99% by mass of vinyl acetate. Ethylene-vinyl acetate copolymer resin (A) and vinyl acetate content of 50 to 75% by mass
The ethylene / vinyl acetate copolymer resin (B) of the above (1), wherein the mixing ratio (mass ratio) A / B is 0.2 to 5;
材料シート間の接合方法において、前記異種防水材料シ
ートの重ね合わせ部の周辺上に、目付１００〜１０００
ｇ／ｍ2 の不織布を固定した後に、前記防水樹脂液を吹
き付け塗工することを特徴とする異種防水材料シート間
の接合方法。5. The method for bonding between different types of waterproof material sheets according to claim 1, 2, 3 or 4, wherein a weight per unit area of the different types of waterproof material sheets is 100 to 1000 on the periphery of the overlapping portion.
A method for bonding between different types of waterproof material sheets, wherein the waterproof resin liquid is sprayed and applied after fixing the nonwoven fabric of g / m 2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001175424A JP3973858B2 (en) | 2001-06-11 | 2001-06-11 | Bonding method between different types of waterproof materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001175424A JP3973858B2 (en) | 2001-06-11 | 2001-06-11 | Bonding method between different types of waterproof materials |
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| Publication Number | Publication Date |
|---|---|
| JP2002364297A true JP2002364297A (en) | 2002-12-18 |
| JP3973858B2 JP3973858B2 (en) | 2007-09-12 |
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ID=19016566
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001175424A Expired - Lifetime JP3973858B2 (en) | 2001-06-11 | 2001-06-11 | Bonding method between different types of waterproof materials |
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| WO2012002437A1 (en) | 2010-06-30 | 2012-01-05 | 株式会社ダイフレックス | Interlaminar bonding agent and waterproof structure and waterproofing method |
| US9969884B2 (en) | 2015-05-12 | 2018-05-15 | Wacker Chemie Ag | Dispersion powder in asphalt |
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| CN111894044A (en) * | 2020-08-04 | 2020-11-06 | 天津森聚柯密封涂层材料有限公司 | Waterproof structure of coating film and low-surface-energy lap joint, construction method and application thereof |
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| Publication number | Publication date |
|---|---|
| JP3973858B2 (en) | 2007-09-12 |
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