JPH0619678Y2 - Tarpaulin - Google Patents
TarpaulinInfo
- Publication number
- JPH0619678Y2 JPH0619678Y2 JP1988097065U JP9706588U JPH0619678Y2 JP H0619678 Y2 JPH0619678 Y2 JP H0619678Y2 JP 1988097065 U JP1988097065 U JP 1988097065U JP 9706588 U JP9706588 U JP 9706588U JP H0619678 Y2 JPH0619678 Y2 JP H0619678Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- sheet
- fixed
- permeable sheet
- permeable
- 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 - Lifetime
Links
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、トンネルなどの防水施工に使用される防水シ
ートに関する。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a waterproof sheet used for waterproofing a tunnel or the like.
従来より、トンネルなどの防水施工に使用する防水シー
トとして不透水性シートの一面全面に織布、不織布等の
透水性シートを全面接着したもの或いは一面全域に亘っ
て部分接着したものが知られている。またこの場合、不
透水性シートの接続端域まで透水性シートを固着してし
まうと、他の防水シートと接続する場合に接続箇所から
漏水が生じないように完全液密に接続する作業が面倒で
あることから、不透水性シートに透水性シートを積層す
る場合、不透水性シートの接続端域を透水性シートと固
着せず、これと遊離するように積層することが提案され
ている（実公昭６２−３５７６０号公報、実公昭６３−
２５０２号公報）。BACKGROUND ART Conventionally, as a waterproof sheet used for waterproofing of a tunnel or the like, a waterproof sheet such as a woven cloth or a non-woven cloth that is entirely bonded to one surface or partially bonded to the entire surface is known. There is. Also, in this case, if the water-permeable sheet is fixed up to the connection end area of the water-impermeable sheet, the work of completely liquid-tight connection is troublesome so that water does not leak from the connection point when connecting with other waterproof sheets. Therefore, when laminating the water-permeable sheet on the water-impermeable sheet, it is proposed that the connection end region of the water-impermeable sheet is not fixed to the water-permeable sheet but is laminated so as to be separated from this ( JP-B-62-35760, JP-B-63-
2502).
しかしながら、これらいずれの防水シートにあっても防
水シートが長尺になった場合、配設作業に手間を要する
という問題がある。However, in any of these waterproof sheets, if the waterproof sheet becomes long, there is a problem that the installation work requires time and effort.
本考案は上記事情に鑑みなされたもので、長尺の防水シ
ートの配設作業が簡単に行なわれる防水シートを提供す
ることを目的とする。The present invention has been made in view of the above circumstances, and an object thereof is to provide a waterproof sheet in which a long waterproof sheet can be easily arranged.
本考案は上記目的を達成するため、不透水性シートの全
面に亘って透水性シートを積層した防水シートにおい
て、該透水性シートを２枚で構成し、一方の透水性シー
トは不透水性シートの一端部から中央部にかけて積層さ
れていると共に、該一方の透水性シートの端部が不透水
性シートの略中央部に固着され、他方の透水性シートは
不透水性シートの中央部から他端部にかけて積層されて
いると共に、上記不透水性シート中央部に固着した一方
の透水性シート固着部分上に該他方の透水性シートの一
端部から所定間隔離間した部分が固着され、上記一方の
透水性シート上に固着した部分から外方に延出した他方
の透水性シートの延出部分を固定用延出片として構成
し、かつ不透水性シートと透水性シートとの上記固着部
以外は部分接着又は完全自由状態としたものである。In order to achieve the above-mentioned object, the present invention is a waterproof sheet in which a water-permeable sheet is laminated over the entire surface of a water-impermeable sheet, wherein the water-permeable sheet is composed of two sheets, and one water-permeable sheet is a water-impermeable sheet. Of the water-permeable sheet is laminated from one end portion to the central portion, and the end portion of the one water-permeable sheet is fixed to the substantially central portion of the water-impermeable sheet, and the other water-permeable sheet is attached from the center portion of the water-impermeable sheet to the other portion. While being laminated to the end portion, a portion separated from the one end portion of the other water-permeable sheet by a predetermined distance is fixed on the one water-permeable sheet fixing portion fixed to the central portion of the water-impermeable sheet, The extending portion of the other water-permeable sheet extending outward from the portion fixed on the water-permeable sheet is configured as a fixing extension piece, and other than the fixing portion between the impermeable sheet and the water-permeable sheet. Partially bonded or finished It is obtained as a free state.
本考案の防水シートは、トンネルの地山或は一次覆工コ
ンクリートにその透水性シートが対向するように張設
し、上記延出片をコンクリート釘などで地山或は一次覆
工コンクリートに固定することにより、防水シートをそ
の中間において仮止めすることができる。また、透水性
シートと不透水性シートとが中央部固着部分以外は部分
接着又は完全自由状態であるので、透水性シート、不透
水性シートの自由度は大きい。従って、本考案の防水シ
ートによれば、張設箇所に大きな凹凸があっても、また
長尺であっても配設が簡単であり、かつ現場の変化に自
由に適合させて張設することができる。また、上記延出
片は、透水シートの固着部分から延出して透水シートと
一体であるから、防水シートの自重や何らかの荷重がか
かって防水シートに引張り力が働いても、防水シートに
かかる引張り力は延出片と繋がる透水シートにも加わ
り、分散され、その結果引張り力に強いものである。The waterproof sheet of the present invention is stretched on the ground of the tunnel or the primary lining concrete so that the water permeable sheet is opposed, and the extension piece is fixed to the ground or the primary lining concrete with concrete nails or the like. By doing so, the waterproof sheet can be temporarily fixed in the middle. Further, since the water-permeable sheet and the water-impermeable sheet are partially bonded or completely free except for the central fixed portion, the water-permeable sheet and the water-impermeable sheet have a high degree of freedom. Therefore, according to the waterproof sheet of the present invention, even if there is a large unevenness in the stretched portion or it is long, it is easy to dispose, and it can be stretched by freely adapting to changes in the site. You can In addition, since the extension piece extends from the fixed portion of the water permeable sheet and is integral with the water permeable sheet, even if the waterproof sheet is pulled by some weight or some load is applied to the waterproof sheet, the tension applied to the waterproof sheet is The force is also applied to the water permeable sheet that is connected to the extension piece and is dispersed, and as a result, it is strong in tensile force.
以下、本考案の一実施例につき図面を参照して説明す
る。An embodiment of the present invention will be described below with reference to the drawings.
図面は本考案の一実施例に係る防水シート１を示すもの
で、この防水シート１は、ポリエチレン、ポリプロピレ
ン、ポリ塩化ビニル、エチレン−酢酸ビニル共重合体等
の不透水性合成樹脂などによって形成された不透水性シ
ート２の一面ほぼ全面に織布、不織布等の透水性シート
３を積層した構成とされている。この透水性シート３は
２枚のシート３ａ，３ｂからなり、これら両シート３
ａ，３ｂは、一方のシート３ａの長さ方向一端部と中間
部よりやや他端部側が上記不透水性シート２の長さ方向
中央部及び該中央部と他端部とのほぼ中間部にそれぞれ
固着４，４され、他の部分は非固着状態にあると共に、
他方のシート３ｂの長さ方向他端縁から所定間隔離間し
た部分が上記固着部４において一方のシート３ａと固着
し、かつ中間部よりやや一端部側が不透水性シート２と
固着４し、他の部分は非固着状態であるように配設され
ており、上記他方のシート３ｂの長さ方向他端縁と固着
部４との間にある部分は該固着部４から延出する固定用
延出片５として構成されている。なお、上記固着は熱接
着により行なわれている。The drawings show a waterproof sheet 1 according to an embodiment of the present invention. The waterproof sheet 1 is formed of an impermeable synthetic resin such as polyethylene, polypropylene, polyvinyl chloride, ethylene-vinyl acetate copolymer, or the like. The water-impermeable sheet 2 has a structure in which a water-permeable sheet 3 such as a woven fabric or a non-woven fabric is laminated on almost one surface. The water-permeable sheet 3 is composed of two sheets 3a and 3b.
a and 3b are such that one end of the one sheet 3a in the length direction and the other end side from the middle part are slightly at the center part in the length direction of the water-impermeable sheet 2 and substantially the middle part between the center part and the other end. They are fixed to 4, 4 respectively, and the other parts are in a non-fixed state,
A portion of the other sheet 3b which is separated from the other edge in the longitudinal direction by a predetermined distance is fixed to the one sheet 3a at the fixing portion 4, and one end side of the intermediate portion is fixed to the impermeable sheet 2 and the other, Is disposed so as to be in a non-fixed state, and a portion between the other end edge in the length direction of the other sheet 3b and the fixing portion 4 is a fixing extension extending from the fixing portion 4. It is configured as a projecting piece 5. The fixing is performed by thermal bonding.
上記防水シート１をトンネルの防水施工に使用する場合
は、地山に打設した一次覆工コンクリート上に防水シー
ト１をその透水性シート３が一次覆工コンクリートに対
向するように張設し、該防水シート１の延出片５をコン
クリート釘などの固定部材で仮止めするもので、その後
不透水性シート２、透水性シート３の所定箇所を一次覆
工コンクリートに固定部材で固定し、また他の防水シー
トと接続するものであるが、この場合上記防水シート１
は、その不透水性シート２及び透水性シート３が中央部
で互に固着され、他の部分はそれぞれその１箇所の固着
箇所を除いて互に自由状態にあると共に、上記延出片５
が仮止めされる位置は防水シートの中央部付近であるた
め、不透水性シート２、透水性シート３の自由度は大き
く、従って防水シート張設箇所に大きな凹凸があった
り、張設箇所が狭いなどの現場の状況に応じた配設態
様、防水シート相互の接続態様の変更が容易である。When the waterproof sheet 1 is used for waterproofing a tunnel, the waterproof sheet 1 is stretched on the primary lining concrete placed in the ground so that the water permeable sheet 3 faces the primary lining concrete, The extension piece 5 of the waterproof sheet 1 is temporarily fixed with a fixing member such as a concrete nail, and then fixed portions of the impermeable sheet 2 and the water permeable sheet 3 are fixed to the primary lining concrete with a fixing member, and In this case, the waterproof sheet 1 is connected to another waterproof sheet.
The water-impermeable sheet 2 and the water-permeable sheet 3 are fixed to each other at the central portion, and the other portions are free from each other except for one fixing portion thereof, and the extension piece 5 is
Since the position where the waterproof sheet is temporarily fixed is near the central portion of the waterproof sheet, the water impermeable sheet 2 and the water permeable sheet 3 have a high degree of freedom, and therefore the waterproof sheet stretched portion has large irregularities or the stretched portion is It is easy to change the arrangement mode and the connection mode between the waterproof sheets according to the situation of the site such as narrow space.
従って、上記防水シート１によれば、長尺であっても配
設が簡単であり、かつ現場の変化に自由に適合させて張
設することができる。また、上記延出片５は、透水シー
ト３の固着部分から延出して透水シート３と一体である
から、防水シート１の自重や何らかの荷重がかかって防
水シート１に引張り力が働いても、防水シート１にかか
る引張り力は、延出片５と繋がる透水シート１にも加わ
り、分散され、その結果引張り力に強いものである。Therefore, according to the waterproof sheet 1, even if the waterproof sheet 1 is long, it is easy to dispose, and the waterproof sheet 1 can be stretched so as to be freely adapted to changes in the site. Moreover, since the extending piece 5 extends from the fixed portion of the water permeable sheet 3 and is integral with the water permeable sheet 3, even if a tensile force acts on the waterproof sheet 1 due to the weight of the waterproof sheet 1 or some load. The tensile force applied to the waterproof sheet 1 is also applied to the water permeable sheet 1 connected to the extension piece 5 and dispersed, and as a result, the tensile force is strong.
なお、上記実施例では２枚のシート３ａ，３ｂを用いて
延出片５を他方のシート３ｂの他端部にて構成したが、
延出片の形成態様はこれに制限されるものではなく、種
々の変更が可能であり、また固着箇所を延出片５の配設
部分である中央部のみとすることもでき、その他の構成
についても本考案の要旨の範囲内で適宜変更して差支え
ない。In addition, in the above-mentioned embodiment, the extending piece 5 is configured by the other end of the other sheet 3b by using the two sheets 3a and 3b.
The form of the extension piece is not limited to this, and various modifications can be made, and the fixing point can be limited to only the central portion where the extension piece 5 is disposed. Other configurations The above can also be appropriately changed within the scope of the present invention.
本考案の防水シートは、上記したように構成したので、
長尺の防水シートであってもその中央部で片止めするこ
とができ、また施工現場に応じた張設を可能とすること
ができる。Since the waterproof sheet of the present invention is configured as described above,
Even a long waterproof sheet can be fastened at its central part and can be stretched according to the construction site.
【図面の簡単な説明】 図面は本考案の一実施例を示す断面図である。 １……防水シート、２……不透水性シート、 ３……透水性シート、４……固着部、 ５……延出片。BRIEF DESCRIPTION OF THE DRAWINGS The drawings are sectional views showing an embodiment of the present invention. 1 ... waterproof sheet, 2 ... water-impermeable sheet, 3 ... water-permeable sheet, 4 ... fixed part, 5 ... extension piece.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭61−58299（ＪＰ，Ｕ) 実開 昭61−71700（ＪＰ，Ｕ) 実公 平３−36640（ＪＰ，Ｙ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography Sho 61-58299 (JP, U) Steady development 61-71700 (JP, U) Shokohei 3-36640 (JP, Y2)
Claims (1)
トを積層した防水シートにおいて、該透水性シートを２
枚で構成し、一方の透水性シートは不透水性シートの一
端部から中央部にかけて積層されていると共に、該一方
の透水性シートの端部が不透水性シートの略中央部に固
着され、他方の透水性シートは不透水性シートの中央部
から他端部にかけて積層されていると共に、上記不透水
性シート中央部に固着した一方の透水性シート固着部分
上に該他方の透水性シートの一端部から所定間隔離間し
た部分が固着され、上記一方の透水性シート上に固着し
た部分から外方に延出した他方の透水性シートの延出部
分を固定用延出片として構成し、かつ不透水性シートと
透水性シートとの上記固着部以外は部分接着又は完全自
由状態としたことを特徴とする防水シート。1. A waterproof sheet in which a water-permeable sheet is laminated over the entire surface of a water-impermeable sheet.
A single water-permeable sheet is laminated from one end to the center of the water-impermeable sheet, and one end of the water-permeable sheet is fixed to the substantially center of the water-impermeable sheet. The other water-permeable sheet is laminated from the central portion of the water-impermeable sheet to the other end, and the other water-permeable sheet is fixed on the one water-permeable sheet fixing portion fixed to the water-impermeable sheet central portion. A portion separated from the one end by a predetermined distance is fixed, and the extending portion of the other water-permeable sheet extending outward from the portion fixed on the one water-permeable sheet is configured as a fixing extension piece, and A waterproof sheet, characterized in that it is in a partially bonded or completely free state except for the above-mentioned fixed portion of the water-impermeable sheet and the water-permeable sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988097065U JPH0619678Y2 (en) | 1988-07-22 | 1988-07-22 | Tarpaulin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988097065U JPH0619678Y2 (en) | 1988-07-22 | 1988-07-22 | Tarpaulin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0218599U JPH0218599U (en) | 1990-02-07 |
| JPH0619678Y2 true JPH0619678Y2 (en) | 1994-05-25 |
Family
ID=31322275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988097065U Expired - Lifetime JPH0619678Y2 (en) | 1988-07-22 | 1988-07-22 | Tarpaulin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619678Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3685218B2 (en) * | 1995-10-31 | 2005-08-17 | 藤森工業株式会社 | Waterproof sheet, waterproof sheet manufacturing method, and waterproof sheet construction method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0510077Y2 (en) * | 1984-09-20 | 1993-03-11 | ||
| JPH0336640Y2 (en) * | 1984-10-08 | 1991-08-02 |
-
1988
- 1988-07-22 JP JP1988097065U patent/JPH0619678Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0218599U (en) | 1990-02-07 |
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