JPH11166226A - Manufacture of civil engineering protection sheet - Google Patents
Manufacture of civil engineering protection sheetInfo
- Publication number
- JPH11166226A JPH11166226A JP34995997A JP34995997A JPH11166226A JP H11166226 A JPH11166226 A JP H11166226A JP 34995997 A JP34995997 A JP 34995997A JP 34995997 A JP34995997 A JP 34995997A JP H11166226 A JPH11166226 A JP H11166226A
- Authority
- JP
- Japan
- Prior art keywords
- woven fabric
- civil engineering
- sheet
- polyurethane
- ground
- 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
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Laminated Bodies (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、河川、港湾、ダム
などの土木工事、特に護岸工事の法面基盤や、廃棄物処
理処分場の遮水シートなどの保護材料として、クッショ
ン性に優れ、敷設対象物に存在する突起物からの突き刺
し耐性にすぐれた土木用保護シートの製造方法に関す
る。TECHNICAL FIELD The present invention is excellent in cushioning properties as a protective material for civil engineering works for rivers, harbors, dams, etc., particularly for slope foundations for revetment works, and as a waterproof sheet for waste disposal sites. The present invention relates to a method for manufacturing a protective sheet for civil engineering having excellent resistance to piercing from a protrusion existing on an object to be laid.
【０００２】[0002]
【従来の技術】従来から、河川、港湾、ダム等の土木工
事、特に護岸工事の法面の安定化のためにコンクリート
詰めの袋や土壌が使用され、また、廃棄物処分場では、
地下水汚染防止のために該処分場の底や側面の前面に遮
水シートを敷き詰め、侵出水や雨水は、処分場の施設で
処理した後に、放流されるが、この遮水シートは、従
来、山砂、古畳、不織布などを保護シートとして積層し
て保護されていた。しかしながら、これらのシートで
は、重く運搬がしにくいという作業上の効率の悪さ、腐
蝕の問題、強度が低いなどの問題がそれぞれにあった。2. Description of the Related Art Conventionally, concrete-filled bags and soil have been used to stabilize the slopes of civil works such as rivers, harbors, dams, etc., and in particular, revetment works.
In order to prevent groundwater contamination, a waterproof sheet is spread over the bottom and the front of the side of the disposal site, and the leached water and rainwater are discharged after treatment at the disposal site facilities. Mountain sand, old tatami mats, non-woven fabric, etc. were laminated and protected as protective sheets. However, these sheets have problems such as inefficiency in operation, which is heavy and difficult to transport, corrosion, and low strength.
【０００３】さらに特開平９−９４９０２号公報に袋状
織物の中に、発泡樹脂が充填された土木用保護シートが
開示されている。また従来から、地山上に、シートを設
け、ポリウレタン発泡体を設ける方法が知られている。Further, Japanese Patent Application Laid-Open No. 9-94902 discloses a protective sheet for civil engineering in which a foamed resin is filled in a bag-like fabric. A method of providing a sheet and providing a polyurethane foam on the ground has been conventionally known.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記従来の
技術の問題に鑑みて、クッション性に優れ、敷設対象物
に存在する突起物からの突き刺し体制にすぐれた土木用
保護シートの製造方法を提供せんとするものである。SUMMARY OF THE INVENTION In view of the above-mentioned problems of the prior art, the present invention relates to a method for manufacturing a protective sheet for civil engineering which has excellent cushioning properties and is excellent in a system for piercing from a projection present on an object to be laid. Is to be provided.
【０００５】[0005]
【課題を解決するための手段】本発明は、かかる課題を
解決するために、次のような手段を採用するものであ
る。すなわち、本発明の土木用保護シートの製造方法
は、地山上に、織布１を設けた後、該織布の上にポリウ
レタン発泡体層を設け、該発泡体層の上に、さらに織布
２を設けることを特徴とするものである。The present invention employs the following means in order to solve the above-mentioned problems. That is, the method for producing a protective sheet for civil engineering according to the present invention comprises the steps of: providing the woven fabric 1 on the ground; providing a polyurethane foam layer on the woven fabric; 2 is provided.
【０００６】[0006]
【発明の実施の形態】本発明の実施の形態を以下に説明
する。本発明の方法では、まず地山上に織布１を設け
る。織布としては、腐蝕されない繊維、例えばポリエス
テル系、ポリアミド系、ポリビリニルアルコール系、ア
アミド系、ポリフェニレンスフルフィド系などからなる
合成繊維からなるものが通常使用される。これらの繊維
は、単独または混用して使用することができる。Embodiments of the present invention will be described below. In the method of the present invention, the woven fabric 1 is first provided on the ground. As the woven fabric, fibers that do not corrode, for example, synthetic fibers made of polyester, polyamide, polyvinylyl alcohol, amid, polyphenylene sulfide, and the like are usually used. These fibers can be used alone or in combination.
【０００７】本発明の方法では、織布１の上にポリウレ
タン発泡体層が設けられる。ポリウレタンであることに
より、クッション性、フィット性、形態安定性および丈
夫さ（へたりにくさ）に優れる。このポリウレタン発泡
体層は、液状ポリウレタンを織布１の上で発泡・硬化さ
せたものが好ましく使用される。この液状ポリウレタン
層の厚みは好ましくは２ｃｍ以上である。In the method of the present invention, a polyurethane foam layer is provided on the woven fabric 1. Due to being polyurethane, it is excellent in cushioning property, fitting property, form stability and robustness (hardness to set). As this polyurethane foam layer, a layer obtained by foaming and curing liquid polyurethane on the woven fabric 1 is preferably used. The thickness of this liquid polyurethane layer is preferably 2 cm or more.
【０００８】さらに、ポリウレタン発泡体層の上に、さ
らに織布２が設けられる。織布２の種類としては、先に
織布１について説明したものと同じものからから選ぶこ
とができ、織布１と同種であっても、異種であってもよ
い。織布２の設置はポリウレタンの硬化が完結しないう
ちに行うのが、ポリウレタン発泡体層と織布２との接着
性にすぐれ、最終的には土木用保護シートの強度を高め
る上で好ましい。が、地山、織布１、ポリウレタン発泡
体層および織布２の関係が移動することを防止するため
に、保護シートを鋲止めしておくことが好ましい。また
本発明で得られた土木用保護シートの端部には、目地止
めなど織布１またはポリウレタン発泡層の露出を防止す
るための手段を設けておくのが好ましい。Further, a woven fabric 2 is further provided on the polyurethane foam layer. The type of the woven fabric 2 can be selected from the same types as those described above for the woven fabric 1, and may be the same or different from the woven fabric 1. It is preferable to install the woven fabric 2 before the curing of the polyurethane is completed, since the adhesion between the polyurethane foam layer and the woven fabric 2 is excellent and finally the strength of the civil engineering protection sheet is increased. However, in order to prevent the relationship between the ground, the woven fabric 1, the polyurethane foam layer, and the woven fabric 2 from moving, it is preferable that the protective sheet be tacked. In addition, it is preferable to provide a means for preventing exposure of the woven fabric 1 or the polyurethane foam layer, such as a joint stop, at the end of the protective sheet for civil engineering obtained by the present invention.
【０００９】かかる土木用保護シートは、例えば遮水シ
ートなどの防水シートとか、基盤と土木用機能シートや
機能部材の間に敷設したり、該土木用機能シートや機能
部材と、その上に敷設する土木構築物との間に敷設した
りして、該土木用機能シートや機能部材を保護するため
のシートである。すなわち、本発明の土木用保護シート
は該土木用機能シートや機能部材の保護する面によっ
て、その敷設位置は相違するが、いずれにしても土木用
機能シートや機能部材の上下の少なくとも一方に敷設さ
れて使用されるものである。もちろん、本発明の土木用
保護シートに防水性や防油性などの機能を、織布１また
は織布２の上に付与することができる。Such a protective sheet for civil engineering is laid, for example, as a waterproof sheet such as a water-impervious sheet, between a base and a functional sheet or functional member for civil engineering, or laid on the functional sheet or functional member for civil engineering. This is a sheet for protecting the functional sheet or the functional member for civil engineering, for example, by laying it between civil engineering structures. In other words, the laying position of the civil engineering protection sheet of the present invention is different depending on the protective surface of the civil engineering functional sheet or functional member, but in any case, it is laid on at least one of the upper and lower sides of the civil engineering functional sheet or functional member. It has been used. Of course, the protective sheet for civil engineering of the present invention can be provided with functions such as waterproofness and oilproofness on the woven fabric 1 or the woven fabric 2.
【００１０】本発明の構成によれば、以下の効果を奏す
る。 1)織布１、ポリウレタン発泡体層、織布２の多層構造と
することにより、突起物に対する耐性が向上する。 2)中間にポリウレタン発泡体を使用することによりクッ
ション性が高まる。 3)織布１を地山の上に設けた後、ポリウレタン発泡体を
設けることにより、ポリウレタンの熱収縮による変形に
よるシート全体の、ずれ変形を防止することができる。 4)簡便に現場で施工することができる。According to the structure of the present invention, the following effects can be obtained. 1) The multilayer structure of the woven fabric 1, the polyurethane foam layer and the woven fabric 2 improves the resistance to protrusions. 2) The use of polyurethane foam in the middle increases cushioning. 3) After the woven fabric 1 is provided on the ground, by providing the polyurethane foam, it is possible to prevent the entire sheet from being displaced and deformed by the deformation due to the heat shrinkage of the polyurethane. 4) Easy construction on site.
【００１１】[0011]
【実施例】以下、実施例に基づいて、具体的に本発明を
説明する。 実施例１ 傾斜をもつ地山の上に、傾斜方向に、２ｍ幅のポリエス
テル織布を、織布の幅が傾斜方向に配置されるよう５０
ｃｍの間隔をもって、複数敷設した。さらに液状ポリウ
レタンを織布およびその間隔部の上に吹き付て、さらに
アクリル樹脂でコーティングされた４ｍの幅をもつポリ
エステル織布複数を織布同士が一部重ねて設け、ポリウ
レタン発泡層の発泡、硬化が完結するのを待ち、土木用
保護シートとした。そしてプラスチック製タッピングネ
ジを表面の織布から地山まで到達するよう打設し、さら
に表面の重なりのある織布同士を接着加工した。得られ
たシートは、所望の平滑な形状をもち、プラスドライバ
ーで抜き打ちを試みても、簡単に突き抜けるものではな
かった。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on embodiments. Example 1 A 2m-wide polyester woven fabric was placed on a slope having a slope in the slope direction so that the width of the woven fabric was arranged in the slope direction.
Several were laid at intervals of cm. Further, a liquid polyurethane is sprayed on the woven fabric and the space between the woven fabrics, and a plurality of polyester woven fabrics each having a width of 4 m and coated with an acrylic resin are partially overlapped with each other to form a polyurethane foam layer. Waiting for the curing to be completed, a protective sheet for civil engineering was used. Then, a plastic tapping screw was driven so as to reach from the woven fabric on the surface to the ground, and woven fabrics having an overlapping surface were bonded to each other. The obtained sheet had a desired smooth shape, and did not easily penetrate even if punching was attempted with a Phillips screwdriver.
【００１２】[0012]
【発明の効果】本発明によれば、簡便に、敷設対象物に
存在する突起物からの突き刺し耐性にすぐれた土木用保
護シートを安定して提供することができる。According to the present invention, it is possible to easily and stably provide a protective sheet for civil engineering excellent in resistance to piercing from a protrusion existing on an object to be laid.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松本 修一 東京都中央区日本橋人形町２−20−５ 株 式会社ジオテックス内 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Shuichi Matsumoto 2-20-5 Nihonbashi Ningyocho, Chuo-ku, Tokyo Inside Geotex Co., Ltd.
Claims (2)
の上にポリウレタン発泡体層を設け、該発泡体層の上
に、さらに織布を設けることを特徴とする土木用保護シ
ートの製造方法。1. A civil engineering work, wherein a woven fabric is provided on the ground, a polyurethane foam layer is provided on the sheet-like material, and a woven fabric is further provided on the foam layer. Manufacturing method of protective sheet.
で液状ポリウレタンを発泡・硬化させたのものである土
木用保護シートの製造方法。2. A method for producing a protective sheet for civil engineering wherein the polyurethane foam layer is formed by foaming and curing liquid polyurethane on a sheet-like material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34995997A JPH11166226A (en) | 1997-12-04 | 1997-12-04 | Manufacture of civil engineering protection sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34995997A JPH11166226A (en) | 1997-12-04 | 1997-12-04 | Manufacture of civil engineering protection sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11166226A true JPH11166226A (en) | 1999-06-22 |
Family
ID=18407272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34995997A Pending JPH11166226A (en) | 1997-12-04 | 1997-12-04 | Manufacture of civil engineering protection sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11166226A (en) |
-
1997
- 1997-12-04 JP JP34995997A patent/JPH11166226A/en active Pending
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