JP2002115167A - Three-dimensional netlike body and method for producing the same - Google Patents
Three-dimensional netlike body and method for producing the sameInfo
- Publication number
- JP2002115167A JP2002115167A JP2000309833A JP2000309833A JP2002115167A JP 2002115167 A JP2002115167 A JP 2002115167A JP 2000309833 A JP2000309833 A JP 2000309833A JP 2000309833 A JP2000309833 A JP 2000309833A JP 2002115167 A JP2002115167 A JP 2002115167A
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- JP
- Japan
- Prior art keywords
- mold
- conductive
- net
- dimensional
- thickness
- 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.)
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/30—Landfill technologies aiming to mitigate methane emissions
Landscapes
- Nonwoven Fabrics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、立体網状体に関す
る。さらに詳しくは、廃棄物処分場の底面止水材とし
て、遮水シート／立体網状体／遮水シートの構成の遮水
構造体を用いたダブルライナー工法があり、本発明は、
前記した立体網状体に関係する土木資材であって、土圧
が掛かって常に厚味方向に圧縮応力が掛った状態で空隙
を確保する機能が要求される部材で、該立体網状体は、
廃棄物処分場の底面止水材としての遮水構造体として用
いた時、上部の遮水シートが破れて、該立体網状体が確
保している空隙に廃水が漏れだした時、何らかの方法で
その漏水を検知して、漏水を検知した場合、該空隙にベ
ントナイトなどの止水材を注入して、遮水効果をより確
保するものである。TECHNICAL FIELD The present invention relates to a three-dimensional network. More specifically, there is a double liner method using a water-blocking sheet / three-dimensional net / water-blocking sheet as a water-blocking material at the bottom of a waste disposal site.
Civil engineering materials related to the three-dimensional net, the member is required to secure the void in the state where the earth pressure is applied and compressive stress is always applied in the thickness direction, the three-dimensional net is,
When used as a water-blocking structure as a water-stopping material at the bottom of a waste disposal site, when the water-blocking sheet at the top is torn and wastewater leaks into the void secured by the three-dimensional mesh, When the water leakage is detected and a water leakage is detected, a water-stopping material such as bentonite is injected into the space to further secure the water shielding effect.
【０００２】[0002]
【従来の技術】特許第１５０８３１１号公報に見られる
様な、立体網状体が、実質厚みが０．１〜４ｍｍの薄い
網状体が、厚み方向断面において凹凸状に波打ってお
り、見掛けの厚みが４〜５０ｍｍで、該網状体の凹凸に
よって大きな空隙を形成したマット形状の立体網状体が
公知であり、該立体網状体は、廃棄物処分場において、
その底面は漏水によって地下水の汚染を防止するための
遮水構造体で形成され、ダブルライナー工法では、上記
した遮水シート／立体網状体／遮水シートの構成の遮水
構造体が用いられている。該立体網状体には、特公昭５
８−９１８６号公報や特開平１１−２４７０６０号公報
開示されているフィラメントが融着接着して一体化し、
かつ全体的に凹凸状になって一定の厚みを持ったマツト
状の立体網状体として使用され、また、この立体網状体
を利用した特開平５−１１８１９６号公報に見られるン
ネルやコンクリートの擁壁の裏面から湧出する水を導水
して排水する面状排水材が当該排水材がプラスチック製
で軽量のため、施工が簡単で多用されている。2. Description of the Related Art As disclosed in Japanese Patent No. 1508311, a three-dimensional net has a thin net having a substantial thickness of 0.1 to 4 mm, which is wavy in an uneven cross section in the thickness direction. Is a mat-shaped three-dimensional net having a large void formed by the unevenness of the net is 4 to 50 mm, and the three-dimensional net is used in a waste disposal site.
The bottom surface is formed of a water-blocking structure for preventing groundwater contamination due to water leakage. In the double liner method, the water-blocking structure having the above-described structure of the water-blocking sheet / three-dimensional net / water-blocking sheet is used. I have. The three-dimensional reticulated body includes Japanese Patent Publication No. 5
The filaments disclosed in JP-A-8-9186 and JP-A-11-247060 are integrated by fusion bonding.
It is used as a mat-like three-dimensional net having a certain thickness by being entirely uneven, and a retaining wall made of a tunnel or a concrete as disclosed in Japanese Patent Application Laid-Open No. 5-118196 using this three-dimensional net. The surface drainage material that guides and drains the water that springs out from the back surface of the above is simple and frequently used because the drainage material is made of plastic and lightweight.
【０００３】また、上記廃棄物処分場の遮水構造体とし
て、セメント打ちなどの剛性工法に比べ、ゴムシートや
プラスチックシートを止水材として用いるのが、簡単で
あり、従来から行なわれてきたが、当該シートが破損し
て漏水する問題があり、これらを改良する試みがなさ
れ、上下に不透水膜を配置し中層に排水材を設け、該排
水材より逸流水が生じた場合に、当該排水材に不透水剤
を注入して遮水を完璧なものとする、遮水構造のチェッ
クと補修を兼ねたダブルライナー工法の排水材を挟んだ
遮水材、また、前記遮水構造体として、取り扱いが容易
な様に、本発明の様な空隙の大きい立体網状体を用い、
該立体網状体にベントナイトなどの水によって容易に膨
潤する物質を止水材を散布する考案が、特開平６−３４
１１２４号公報、特開平５−１０４８号公報や特開平４
−１４６３１９号公報が開示されており、さらには、こ
れらの止水効果が減じた部分が生じて漏水を発生させた
場合まで想定して止水する特開平７−１１９１３０号公
報が開示されているが、いずれの場合であっても、立体
網状体に、より耐圧性のものが望まれてきた。In addition, it is simpler to use a rubber sheet or a plastic sheet as a water-stopping material for a water-blocking structure of the above-mentioned waste disposal site, as compared with a rigid construction method such as cementing, which has been conventionally performed. However, there is a problem that the sheet is damaged and water leaks, and attempts have been made to improve these, and an impermeable membrane is arranged above and below, and a drainage material is provided in the middle layer. The impervious agent is injected into the drainage material to make the water impervious to perfection, the water impermeable material sandwiching the drainage material of the double liner method that also checks and repairs the water impermeable structure, and as the water impermeable structure , So as to be easy to handle, using a three-dimensional net having a large void as in the present invention,
Japanese Patent Application Laid-Open No. 6-34 discloses a technique of spraying a water-stopping material on the three-dimensional network body with a substance that easily swells with water such as bentonite.
No. 1124, Japanese Unexamined Patent Publication No. Hei.
Japanese Unexamined Patent Publication No. Hei 7-119130 discloses that a portion where the water stopping effect is reduced and water leakage is assumed is assumed until leakage occurs. However, in any case, a three-dimensional net having a higher pressure resistance has been desired.
【０００４】このため、本発明者らは、より耐圧性のプ
リーツ形状の立体網状体をすでに提案したが、前記した
漏水を検知する機能も立体網状体に要求され始めた。こ
の漏水検知には、耐圧性はないが検知材として導電性繊
維を混綿した導電性不織布を立体網状体の代わりに用
い、廃棄物処分場の埋め立て部分の地表に、一方の電極
を、もう一方の電極を遮水シートに挟まれた導電性不織
布として、該遮水シートが破損し、導電性不織布に漏水
した場合、両電極間が繋がり、漏水を検知するものがあ
るが、漏水した箇所を止水材で復旧する機能はない。[0004] For this reason, the present inventors have already proposed a pleated three-dimensional net having a higher pressure resistance, but the three-dimensional net has also been required to have the function of detecting water leakage. For this leak detection, a conductive nonwoven fabric that is not pressure resistant but mixed with conductive fibers is used in place of a three-dimensional net as a detecting material, and one electrode is placed on the ground surface of the landfill part of the waste disposal site, and the other electrode is placed on the ground. When the water-impervious sheet is damaged and the conductive non-woven fabric leaks water as the conductive non-woven fabric sandwiched between the electrodes of the water-impervious sheet, there is one that connects the two electrodes and detects water leakage. There is no function to recover with waterproof material.
【０００５】[0005]
【発明が解決しょうとする課題】前記した特公昭５８−
９１８６号公報や特開平１１−２４７０６０号公報開示
されているフィラメントが融着接着して一体化し、かつ
全体的に凹凸状になって一定の厚みを持ったマツト状に
なった立体網状体、また、最近、本発明者らが開発した
より軽量で空隙率が高く従来の排水材より圧縮応力が大
きいプリーツ形状の立体網状体は、軽量でも厚み方向へ
の剛直性と耐圧性の向上できたが、漏水の検知機能は配
慮されておらず、何らかの検知機能を別途設けなければ
ならない問題があった。[Problems to be solved by the invention]
No. 9186 and Japanese Patent Application Laid-Open No. H11-247060 disclose a three-dimensional net-like body in which filaments are fused and bonded and integrated into a mat-like body having a certain thickness by being entirely uneven. Recently, the pleated three-dimensional mesh body, which is lighter, has a higher porosity, and has a larger compressive stress than the conventional drainage material developed by the present inventors, has improved rigidity and pressure resistance in the thickness direction even with a light weight. However, there has been a problem that the function of detecting water leakage has not been considered, and some kind of detection function must be separately provided.
【０００６】本発明の目的は、土圧が掛かって常に厚味
方向に圧縮応力が掛かる用途で、従来の排水材より圧縮
応力が大きくて、高加重下でも厚みの減少量が少なく高
い空隙率を保持できる立体網状体に、前記遮水構造体と
して用いた時、漏水検知機能を与え、漏水箇所の遮水復
旧と漏水検知機能をダブルライナー工法の遮水構造体に
持たせ、より安全な廃棄物処分場を提供することにあ
る。SUMMARY OF THE INVENTION An object of the present invention is an application in which a compressive stress is always applied in the thickness direction due to an applied earth pressure. The compressive stress is larger than that of a conventional drainage material, and the amount of reduction in thickness is small even under a high load. When used as the water-impervious structure, a three-dimensional net that can hold the water-impermeable structure provides a water-leakage detection function, and provides the water-impervious structure of the double liner method with water-impermeation restoration and water-leakage detection functions at the water-leakage point, providing a more secure To provide a waste disposal site.
【０００７】なお、前記した導電性不織布は、炭素繊維
や金属繊維などの導電性繊維を混綿して不織布化する手
法で作成されるため、不織布として導電性を確保するに
は、該繊維同士が接触して、不織布全体として導電性繊
維の網目を構成する都合上、該導電性繊維を少なくとも
１０〜２０重量％混綿しないと導電性を確保できない問
題がある。前記した導電性繊維は大半が剛直で、混綿に
欠くことのできないカード掛けの大きな問題もあり、安
価には導電性不織布を作れない大きな問題がある。[0007] Since the above-mentioned conductive non-woven fabric is made by mixing conductive fibers such as carbon fibers and metal fibers into a non-woven fabric, in order to ensure conductivity as a non-woven fabric, the fibers must be bonded together. There is a problem that conductivity cannot be ensured unless at least 10 to 20% by weight of the conductive fiber is mixed in order to form a mesh of conductive fibers as a whole nonwoven fabric upon contact. Most of the above-mentioned conductive fibers are rigid, and there is also a major problem of card hanging, which is indispensable for blending, and a major problem is that a conductive nonwoven fabric cannot be produced at low cost.
【０００８】[0008]
【課題を解決するための手段】フィラメントが融着接着
して一体化し、かつ厚み方向に凹凸状になって一定の厚
みを持ったマツト状の、耐圧性で透水性の立体網状体
が、長さ方向に単位幅当たり数条の導電性糸条が配置さ
れ、かつ、これら糸条間を蛇行などした導電性糸条で接
触交差させて、粗い目の導電性ネットで一表面および／
または一表面の近傍を占められて、全体として導電性機
能が付与され、該導電性ネットを保護するため、不織布
や遮水シートが、接着されている立体網状体である。A mat-like, pressure-resistant, water-permeable three-dimensional net having a certain thickness by being fused and bonded with filaments and formed into a concavo-convex shape in the thickness direction has a long length. A plurality of conductive yarns are arranged per unit width in the width direction, and the yarns are contacted and crossed by a meandering conductive yarn between the yarns to form a rough surface of the conductive net on one surface and / or
Alternatively, it is a three-dimensional net-like body occupied by the vicinity of one surface and provided with a conductive function as a whole, and to which a nonwoven fabric or a water-blocking sheet is adhered to protect the conductive net.
【０００９】さらには、電気的にピックアップするた
め、長さ方向に間欠的に、全幅に渡る導電性帯が設けら
れており、本来、導電性糸条間を蛇行などした導電性糸
条で長さ方向の通電性の完全さを確保しているが、この
バックアップも、長さ方向の途中に任意に設けることで
行なわしめると共に、長さ方向での切断の自由性を高
め、できるだけ切断をこの導電性帯で行なわしめ、立体
網状体の接続の必要な時は、この導電性帯同士を導電物
で接続して全体の通電性を容易に確保することができ
る。Further, in order to electrically pick up, a conductive band is provided intermittently in the length direction over the entire width. Although the completeness of the electrical conductivity in the vertical direction is ensured, this backup can also be performed by providing it arbitrarily in the middle of the length direction, and the freedom of cutting in the length direction is increased. When the connection is performed with the conductive band and the connection of the three-dimensional net-like body is necessary, the conductive bands can be connected to each other with a conductive material to easily secure the entire electrical conductivity.
【００１０】なお、電気的にピックアップできる導電性
帯は、長さ方向に間欠的に多数入っていても良く、さら
には、短い一定間隔であっても良いため、請求項８記載
の任意な間隔で設置できる金属バーの使用と共に、以下
に記載する彫刻金型の、それぞれの単独使用や併用な
ど、必要に応じ選択して実施すると良い。The conductive strips that can be electrically picked up may be intermittently provided in the longitudinal direction in a large number, or may be short fixed intervals. In addition to the use of the metal bar that can be set in the above, the engraving molds described below may be selected and used individually or in combination as necessary.
【００１１】前記した彫刻金型とは、連続フィラメント
を集積する金型に、幅方向の全幅に渡る凸部を彫刻した
ものであり、連続フィラメント集積する前に、該凸部上
に金属バーを用いた場合と同じく、予め導電性糸条や導
電性テープをセットし、圧着ロールで、平面体の接着と
同時に、未固化状態の連続フィラメントで圧着して一体
化させることで上記導電性帯が容易に形成できる。The above-mentioned engraving mold is obtained by engraving a convex portion over the entire width in a width direction on a mold for accumulating continuous filaments. Before accumulating the continuous filament, a metal bar is formed on the convex portion. In the same manner as when used, a conductive thread or conductive tape is set in advance, and the above-mentioned conductive band is formed by pressing with a continuous filament in an unsolidified state at the same time as bonding the flat body with a pressure roll, thereby integrating the conductive band. It can be easily formed.
【００１２】なお、使用する金属バーは、全幅に渡って
０．３〜２ｍｍｍｍ厚みで、幅が３〜５０ｍｍのものが
最適である。It is to be noted that the metal bar to be used is optimally 0.3 to 2 mm thick over the entire width and 3 to 50 mm wide.
【００１３】具体的には、熱可塑性合成樹脂からなる、
太さが０．１〜１．５ｍｍの多数の連続フィラメントが
網状に重ね合わされ、その交差点で融着接着されて一体
化した、実質厚みが０．１〜４ｍｍの網状体を形成し、
該網状体が、厚み方向断面において凹凸状に波打ってお
り、見掛けの厚みが４〜５０ｍｍで、該網状体の凹凸に
よって大きな空隙を形成したマット形状の立体網状体で
あって、該立体網状体の幅方向に間欠的に導電性糸条が
配され、長さ方向に該糸条が伸びており、該糸条に接触
交差する様に１本または複数本の導電性糸条が配され、
粗いネット状の導電性ネットワークが形成され、該導電
性糸条条の側の立体網状体の表面に平面体を張りつけて
ある、導電性を特徴とする立体網状体が、本発明の立体
網状体である。Specifically, it is made of a thermoplastic synthetic resin,
A large number of continuous filaments having a thickness of 0.1 to 1.5 mm are superimposed in a net shape, and are fused and bonded at intersections thereof to form a net having a substantial thickness of 0.1 to 4 mm,
The net-like body has a mat-shaped three-dimensional net-like body in which the apparent thickness is 4 to 50 mm, and a large void is formed by the unevenness of the net-like body, wherein the three-dimensional net-like body A conductive yarn is intermittently arranged in the width direction of the body, the yarn extends in the length direction, and one or more conductive yarns are arranged so as to contact and cross the yarn. ,
A three-dimensional net having a conductive property, in which a coarse net-shaped conductive network is formed and a flat body is adhered to the surface of the three-dimensional net on the side of the conductive thread, is a three-dimensional net of the present invention. It is.
【００１４】基本的には、本発明の立体網状体はより耐
圧性が求められているため、その使用する金型を断面が
三角の頂点をわずか切断除去した様な、台形のブロック
が平面上に配置されており、該台形の上辺と底面がそれ
ぞれ同一の平面上にある形状の金型を用いるのが都合良
く、該金型でブロックが長さ方向に平行して密に設置さ
れたものが最も都合が良く、この金型で作られた、厚み
方向断面において、プリーツ状で長さ方向に整然と平行
して配列している連続した複数の畦部と溝部とが、交互
に形成されているプリーツ形状の立体網状体が最適であ
る。Basically, since the three-dimensional net of the present invention is required to have higher pressure resistance, a trapezoidal block whose cross section is slightly cut and removed at a vertex of a triangle is used as a mold. It is convenient to use a mold having a shape in which the upper side and the bottom face of the trapezoid are respectively on the same plane, and the blocks are densely installed in the mold in parallel with the length direction. The most convenient, made in this mold, in the cross-section in the thickness direction, a plurality of continuous ridges and grooves that are pleated and arranged in order in the length direction and are arranged alternately. A pleated three-dimensional net is most suitable.
【００１５】[0015]
【発明の実施の形態】本発明の実施の形態について実施
例の図示に基づいて以下に説明する。図１に本発明の一
実施形態である多数のプリーツ断面構造を持つ立体網状
体に、本発明の間歇的間隔、特に任意の間隔に導電性帯
を作る金属バーを設置している製造装置の側面概略図を
示す。ただし該金属バーには導電性帯が乗せてあるもの
とする。図２は図１Ａ部の斜め方向から見た拡大斜視図
である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings of embodiments. FIG. 1 shows a three-dimensional net having a plurality of pleated cross-sectional structures according to an embodiment of the present invention. FIG. However, it is assumed that a conductive band is placed on the metal bar. FIG. 2 is an enlarged perspective view of the portion of FIG. 1A viewed from an oblique direction.
【００１６】本発明による網状体の形態は、例えば図３
で図示するものであり、該網状体は、一定幅（間隔）で
巻いた導電性糸条を複数本繰り出し圧着ロールと金型間
で押さえて、金型と同調させる様になし、多数の連続フ
ィラメント１を溶融紡糸の紡糸口金２より、三角柱を寝
かした形状が刻まれている金型４上に吐出して、金型上
または金型上空に位置した導電性糸条に絡ませながら網
状に重ねてその交点を溶融接着させ、さらに圧着ロール
に添わせて平面体を供給し、これらを金型の凸面上部に
圧着ローラー６で押しつけて、金型の凸部上の融着接着
した網状体で圧着、一体化させると共に、凸部上の融着
接着した網状体をさらに圧着させて、立体網状体の整形
と畦部上端の補強を行なって、プリーツ状の立体網状体
として、該立体網状体の畦下部と溝上部に三角柱形状の
大きな空隙を有するマット形状の立体網状体で、導電性
糸条で電気的検出を可能としたものである。The form of the mesh according to the present invention is, for example, shown in FIG.
The net-like body is formed in such a manner that a plurality of conductive yarns wound at a constant width (interval) are fed out and held between a pressing roll and a mold so as to be synchronized with the mold, and a large number of continuous yarns are formed. The filament 1 is discharged from the spinneret 2 of the melt spinning onto a mold 4 having a triangular prism lying down and engraved in a net shape while being entangled with a conductive yarn located on the mold or above the mold. Then, the intersections are melted and bonded, and a flat body is supplied along with a pressing roll. These are pressed against the upper surface of the convex surface of the mold by a pressing roller 6 to form a fusion bonded net on the convex portion of the mold. The three-dimensional net is formed as a pleated three-dimensional net by forming the three-dimensional net and reinforcing the upper end of the ridge by further pressing the fusion-bonded net on the convex part while pressing and integrating. There is a large triangular prism-shaped space in the lower part of the ridge and the upper part of the ditch In the three-dimensional net-like body of the mat shape, it is obtained by allowing electrical detection with a conductive yarn.
【００１７】さらには、長さ方向に間欠的に、幅方向に
横断する畦部を持つ金型または、金型上に金属バーを設
置した金型を用い、該畦部または金属バー上に導電性帯
を仮設置して、圧着ロールで未固化網状体で圧着して、
ピックアップ帯とすることも容易にできる。Further, a mold having a ridge intersecting in the width direction intermittently in the length direction or a mold having a metal bar provided on the mold is used, and a conductive material is provided on the ridge or the metal bar. Temporary installation of the belt, crimping with an unsolidified reticulated body with a crimping roll,
A pickup band can be easily formed.
【００１８】本発明の立体網状体は、その巻きの長さ方
向の両端に該ピックアップ帯を具備するのが好ましく、
この両端は幅を１０〜５０ｍｍにするのが利便上好まし
い。したがって、この場合、幅も任意に決定できる、金
属バーの使用が好ましい。また、従来の金型は全幅に渡
る凸部が彫刻されていないため、金属バーの使用は、従
来の金型が流用でき、かつ、間隔の設定に自由度が大き
いので極めて好ましい。なお、ピックアップ帯は必然的
にフラットな帯となり、折り曲げ、巻き上げや切断部分
としても大変都合が良く、特に、耐圧性向上用途では、
整然と並列して配されたプリーツ形状の、立体網状体の
表層を一辺と仮想した三角断面構造によって、厚み方向
への圧縮力を受けとめることで耐圧性を向上させる効果
を発揮させ、加えて、当該三角断面構造をプリーツ状に
横方向に整然と配置することで、耐圧性に寄与する該三
角断面構造を最大限に組み込むことによって、全体とし
ての耐圧強度を大幅に向上させ得るのであるが、耐圧性
向上につれ、立体網状体の剛直性も高くなり、折り曲げ
や巻き上げが不可能となる。そこで、間歇的な、好まし
くは一定間隔毎に、より好ましくは任意の間隔で、折り
曲げと接着に便利なフラット部を設ける必要があり、前
記した手法で結果としてフラットとなる導電性帯を一定
間隔でもうけるのが都合が良いが、場合によっては導電
性帯でなく、単なるフラット部としても不都合ではな
い。The three-dimensional net-like body of the present invention preferably has the pickup bands at both ends in the length direction of the winding.
It is preferable for convenience that the both ends have a width of 10 to 50 mm. Therefore, in this case, it is preferable to use a metal bar whose width can be arbitrarily determined. In addition, since the conventional mold has no engraved convex portion over the entire width, the use of a metal bar is extremely preferable because the conventional mold can be used and the degree of freedom in setting the interval is large. In addition, the pickup band is necessarily a flat band, and is very convenient as a bent, rolled up, or cut portion.
By a triangular cross-section structure in which the surface layer of the three-dimensional net-like body is imagined as one side, the effect of improving the pressure resistance by receiving the compressive force in the thickness direction is exhibited. By arranging the triangular cross-sectional structure in a laterally orderly manner in a pleated manner, by incorporating the triangular cross-sectional structure that contributes to the pressure resistance to the maximum, the pressure resistance strength as a whole can be greatly improved. As the quality is improved, the rigidity of the three-dimensional net is also increased, and bending and winding cannot be performed. Therefore, it is necessary to provide a flat portion that is convenient for bending and bonding intermittently, preferably at regular intervals, and more preferably at an arbitrary interval. However, depending on circumstances, it is not inconvenient to use a flat portion instead of a conductive band.
【００１９】本発明の連続フィラメントに使用する素材
は、ポリプロピレン、ポリエチレン、ポリエチレンテレ
フタレートなどのポリエステルおよびナイロン６などの
ポリアミドなどの熱可塑性樹脂で、柔軟性を強化するた
めこれらの共重合体はさらに好ましく、これらのポリマ
ーブレンドしたものやポリマーアロイも好ましい。The material used for the continuous filament of the present invention is a thermoplastic resin such as a polyester such as polypropylene, polyethylene or polyethylene terephthalate and a polyamide such as nylon 6, and these copolymers are more preferable for enhancing flexibility. The polymer blends and polymer alloys thereof are also preferable.
【００２０】本発明の連続フィラメントの太さは、強度
と剛性の面から０．１〜１．５ｍｍが好ましく１．５ｍ
ｍより太いと、本発明の網状体を成形しにくく、０．１
ｍｍより細いと剛性に問題が出やすくなるため好ましく
ない。The thickness of the continuous filament of the present invention is preferably 0.1 to 1.5 mm from the viewpoint of strength and rigidity, and is preferably 1.5 to 1.5 mm.
If it is thicker than m, it is difficult to form the reticulated body of the present invention,
If the thickness is smaller than mm, the rigidity tends to cause a problem, which is not preferable.
【００２１】また、本発明の立体網状体の目付けは用途
によるが、概ね１００〜３０００ｇ／ｍ2 の範囲であ
り、耐圧性強化を意図する場合は、連続フィラメントの
強度と本数の積による耐圧強度の問題があり、１５０〜
１５００ｇ／ｍ2 が好ましく、土壌の保持を意図する場
合はその厚みにもよるが、２００〜１５００ｇ／ｍ2 が
好ましい。The basis weight of the three-dimensional reticulated body of the present invention depends on the application, but is generally in the range of 100 to 3000 g / m 2. If the pressure resistance is intended to be enhanced, the pressure resistance is determined by multiplying the strength of the continuous filament by the number of filaments. Problem, 150 ~
Preferably 1500 g / m 2, depending on its thickness when the intended retention of soil, 200~1500g / m 2 is preferred.
【００２２】本発明の立体網状体の厚みは、耐圧性強化
を意図する場合は、４〜４０ｍｍが好ましく、土壌の保
持を意図する場合は、２０〜５０ｍｍが用途的に好まし
い。なお５０ｍｍを超えると、連続フィラメントが金型
に接触して、冷やされて到達しにくくなって不揃いとな
るし、融着接着不良で、事実上製造が困難であるので好
ましくない。The thickness of the three-dimensional network of the present invention is preferably 4 to 40 mm when strengthening pressure resistance, and is preferably 20 to 50 mm when maintaining soil is intended. If it exceeds 50 mm, the continuous filaments contact the mold and are cooled, so that the continuous filaments are difficult to reach and become uneven.
【００２３】本発明に用いる金型は、圧着ロール６を用
いる都合上、金型上面と底面が平行で、金型の凸部上面
はすべての凸部上面が同一平面にあることが好ましい。In the mold used in the present invention, it is preferable that the upper surface and the bottom surface of the mold are parallel to each other and that the upper surfaces of the convex portions of the mold are all on the same plane because of the use of the pressure roll 6.
【００２４】本発明に用いる導電性糸条は、耐薬品性に
優れた炭素繊維、銅やアルミニウムなどの通電性に優れ
た金属線や金属繊維、これら金属のメッキ繊維であっ
て、マルチフィラメント、モノフィラメント、紡績糸や
スプリットヤーンなど、通電性の糸条を言い、耐腐食性
ガスで炭素繊維、コスト的に多芯銅線が好ましく、銅線
にあっては、銅箔を両面ポリエチレンコートしたスプリ
ットヤーンや、水溶性樹脂で被覆されたものが、腐食性
ガス対策上好ましい。また、導電性テープはこれらの織
り編み物、不織布や紙を言う。The conductive yarn used in the present invention is a carbon fiber excellent in chemical resistance, a metal wire or a metal fiber excellent in electrical conductivity such as copper or aluminum, or a plated fiber of these metals. Monofilament, spun yarn, split yarn, etc., refers to electrically conductive yarn, carbon fiber with corrosion resistant gas, multi-core copper wire is preferable in terms of cost, and for copper wire, split with copper foil double-sided polyethylene coated Yarns or those coated with a water-soluble resin are preferable in terms of measures against corrosive gases. The conductive tape refers to these woven or knitted fabrics, nonwoven fabrics and papers.
【００２５】張りつける平面体は、ポリエチレンなどの
遮水シートや、スパンボンドやニードルパンチ、スパン
レースや含浸接着した不織布等が好適であり、不織布の
場合は、経済的に、２０〜３００ｇ／ｍ2 目付けのポリ
エチレンテレフタレートスパンボンド不織布が特に好ま
しい。The flat body to be attached is preferably a water-impervious sheet such as polyethylene, a spun bond, a needle punch, a spun lace or an impregnated non-woven fabric. In the case of a non-woven fabric, it is economically 20 to 300 g / m 2. A basis weight polyethylene terephthalate spunbond nonwoven fabric is particularly preferred.
【００２６】本発明の立体網状体は可撓性ネットで補強
されているのも好ましく、該可撓性ネットは、網目が１
５〜５０ｍｍ□の漁網などの編みたてネット、スプリッ
トヤーンを使用する寒冷紗、マルチまたはモノフィラメ
ントなどの糸条を縦と横方向に織ったり引き揃えたもの
やスクリムネットなどが都合良く用いられ、強度補強の
点でポリエチレンテレフタレート製漁網が特に好まし
い。The three-dimensional mesh body of the present invention is preferably reinforced with a flexible net.
5-50 mm square fishing nets such as fishing nets, cold gauze using split yarns, woven or aligned yarns such as multi or monofilaments in vertical and horizontal directions, or scrim nets are used conveniently. A fishing net made of polyethylene terephthalate is particularly preferred in terms of reinforcement.
【００２７】（作用） 本発明の立体網状体は連続した
フィラメントで構成されており、水などの液体は容易に
網状体を通過さすことができ、廃棄物処分場の底面漏水
検知と漏水補修に極めて利便性が良く、導電性不織布を
使用している物に比べ、導電体が集合した状態の糸条を
用いているため耐腐食ガスによる影響を受けにくいこと
と、単に市場にある導電性体を使用しているため、大変
経済的であり、不織布ではその剛直性のため用いれなか
った導電体も比較的自由に使用できる利点もある。(Function) The three-dimensional net of the present invention is composed of continuous filaments, and liquid such as water can easily pass through the net, and is used for detecting and repairing water leakage at the bottom of a waste disposal site. It is extremely convenient, and is less susceptible to corrosion-resistant gas because of the use of thread in which conductors are gathered, compared to those using conductive nonwoven fabric. Is very economical, and the non-woven fabric has an advantage that a conductor not used due to its rigidity can be used relatively freely.
【００２８】[0028]
【実施例】次に本発明の効果を実施例と比較例で具体的
に説明する。 （実施例１〜３） 本発
明の網状体は第１図に例示する装置に、図４ＡまたはＢ
の金型４、１４を用い、金型１４では、一定間隔毎に、
幅３ｃｍ、厚さ０．８ｍｍの金属帯を全幅に渡り設置
し、端を金型にビス固定したものを用いることで、効率
良く製造できる。被覆していない多芯銅線７を２０ｃｍ
間隔で金型上方より金型に上斜めに供給し、圧着ロール
で押さえて金型速度と同調させ、該ロール６に添わせて
目付け１００ｇ／ｍ2 のポリエチレンテレフタレートス
パンボンド不織布８を金型上に供給する様セットし、融
点が１４０℃でメルトフローレートが１８ｇ／１０分の
エチレンープロピレン共重合体の溶融物を、孔径０．６
ｍｍの多数の紡糸ノズルが列設された紡糸口金２より繊
維径が０．７ｍｍの連続フィラメント１を紡出し、等速
で移動している三角柱が寝かされた形状が刻まれている
金型に垂らし、前記した導電性糸条に絡ませながら、網
状に重ね、その交差点を融着接着させて網状物３を形成
させ、該網状物が固化しない場所に設置した、圧着ロー
ル６で、金型をベースとし、網状物を圧着成分として、
不織布８と多芯銅線７を圧着して一体化させ図３に例示
する実施例１〜２の導電性を特徴とする立体網状体を得
た。得られた立体網状体の諸物性を表１に示す。Next, the effects of the present invention will be specifically described with reference to examples and comparative examples. (Examples 1 to 3) The reticulated body of the present invention is provided in the apparatus illustrated in FIG.
In the mold 14, the molds 4 and 14 are used at regular intervals.
Efficient production can be achieved by using a metal band having a width of 3 cm and a thickness of 0.8 mm installed over the entire width and having ends fixed to a die with screws. 20cm uncoated multi-core copper wire 7
The mixture is supplied to the mold obliquely from above the mold at intervals, pressed down with a pressure roll to synchronize with the mold speed, and placed along with the roll 6 to deposit a polyethylene terephthalate spunbond nonwoven fabric 8 having a basis weight of 100 g / m 2 on the mold. And a melt of an ethylene-propylene copolymer having a melting point of 140 ° C. and a melt flow rate of 18 g / 10 min.
A continuous filament 1 having a fiber diameter of 0.7 mm is spun from a spinneret 2 in which a number of spinning nozzles each having a diameter of 1 mm are arranged in a row, and a mold in which a triangular prism moving at a constant speed is engraved is engraved. , Entangled with the above-mentioned conductive yarn, overlapped in a net-like form, and the intersections were fused and bonded to form a net-like material 3. Based on the net, as a crimping component,
The nonwoven fabric 8 and the multi-core copper wire 7 were crimped and integrated to obtain a three-dimensional net-like body having the conductivity of Examples 1 and 2 illustrated in FIG. Table 1 shows various physical properties of the obtained three-dimensional network.
【００２９】[0029]
【表１】 [Table 1]
【００３０】金型を図４の１６とし、金型１４と同様に
して金属バーを用いて任意の間隔毎にフラット部のある
実施例３の立体網状体を得た。The mold was set at 16 in FIG. 4 and a three-dimensional net of Example 3 having flat portions at arbitrary intervals was obtained using metal bars in the same manner as the mold 14.
【００３１】実施例１〜３の立体網状体は、何れも、長
さ１０ｍでも、通電でき、実施例１の立体網状体の上下
を１ｍｍのポリエチレンシートで挟み、幅方向の側面を
粘土で密封した後、僅かに折り曲げ、凹型とし、電気ご
てで、５ｍｍの穴を***部に開け、その上に、５ｃｍ
の厚みで腐葉土を押し固めて乗せた、この腐葉土の穴の
上の位置に、リード銅線を付けた釘を３ｃｍ打ち込み、
立体網状体の導電性糸条に接続した銅線に乾電池を繋
ぎ、それに、豆電球を繋ぎ、前記リード銅線も接続した
が、豆電球は点かなかった。そこで、２Ｌの水を入れた
ポリエチレン袋を用意し、上記の穴の上の辺を目がけ、
袋に穴を開けて散水した。しばらくすると、豆電球が点
灯し、本発明の立体網状体が検知機能を持っていること
を確認した。その後、側面の粘土を外して、立体網状体
の状態を確認したところ、かなりの水の漏水を目視でき
た。粘土で再び密閉し、上記のポリエチレンシートの穴
の上の腐葉土の上に、鉄板で重しし、凹型となっている
ポリエチレンシートで挟まれた立体網状体の片方の端か
ら水道水をホースで勢い良く注入すると、反対側の端か
らかなりの勢いで水がでてきたので、修復も可能と推定
する。Each of the three-dimensional nets of Examples 1 to 3 can be energized even with a length of 10 m, and the top and bottom of the three-dimensional net of Example 1 are sandwiched between 1 mm polyethylene sheets, and the lateral sides in the width direction are sealed with clay. After that, slightly bend it into a concave shape, make a 5 mm hole in the upper center with an electric iron, and put 5 cm
A nail with a lead copper wire was driven in at a position 3 cm above the hole in the humus, where the humus was compacted and put with a thickness of 3 cm.
A dry battery was connected to a copper wire connected to the conductive thread of the three-dimensional net, a miniature bulb was connected to the copper wire, and the lead copper wire was also connected, but the miniature bulb did not light. So, prepare a polyethylene bag filled with 2L of water, and open the side above the hole,
The bag was pierced and watered. After a while, the miniature bulb was turned on, and it was confirmed that the three-dimensional mesh body of the present invention had a detecting function. Thereafter, the clay on the side was removed, and the state of the three-dimensional net was confirmed. As a result, considerable water leakage was visually observed. Seal again with clay, weigh with iron plate on mulch above the hole in the above polyethylene sheet, tap water from one end of three-dimensional mesh body sandwiched by concave polyethylene sheet with hose. If injected vigorously, the water came out from the opposite end with a great deal of momentum, so it is presumed that restoration is possible.
【００３２】[0032]
【発明の効果】本発明の１つは、立体網状体の断面が、
三角形が横に繋がったプリーツ形状で、その一辺を立体
網状体の上下面と仮想する、三角形状がしっかりと固定
されて耐圧性を向上させたものであるが、該網状体の内
部は網状物の壁で構成されており、該網状物は熱可塑性
樹脂のフィラメントで構成されているため、嵩高で、通
気性と通水性に優れており、空隙率が極めて大きいため
軽量で、施工場所に運びかつ施工するに便利であり、従
来のものより強度が向上しているため、従来品よりきつ
い使用条件に耐え得ることができるため、廃棄物処分場
の遮水構造体である、ダブルライナー工法の立体網状体
として最適であり、さらに、電気的漏水検知機能も付与
てきたため、本発明の立体網状体を用いると、より優れ
た遮水構造体とでき、廃棄物処分場の安全性のより向上
に寄与できる。According to one aspect of the present invention, the cross-section of the three-dimensional net is
It is a pleated shape in which triangles are connected horizontally, one side of which is imagined as the upper and lower surfaces of the three-dimensional mesh. The triangle is firmly fixed to improve the pressure resistance, but the inside of the mesh is a mesh. The mesh is composed of thermoplastic resin filaments, so it is bulky, has excellent air permeability and water permeability, and has an extremely large porosity, so it is lightweight and can be transported to the construction site. And because it is more convenient to construct and has improved strength compared to conventional products, it can withstand more severe use conditions than conventional products. Since it is optimal as a three-dimensional net and has also been provided with an electric leak detection function, the use of the three-dimensional net of the present invention can provide a more excellent water-blocking structure and further improve the safety of a waste disposal site. Can contribute to
【図１】 本発明の網状体の製造装置の概略図である。FIG. 1 is a schematic view of an apparatus for manufacturing a mesh body of the present invention.
【図２】 図１Ａの斜上部から見た拡大図である。FIG. 2 is an enlarged view of FIG.
【図３】 本発明の立体網状体の一実施形態５を示す斜
視図である。FIG. 3 is a perspective view showing Embodiment 5 of the three-dimensional net-like body of the present invention.
【図４】 金型の例 Ａ：プリーツ断面の立体網状体に
使用する例 Ｂ：フラット部を彫刻した金型Ａ Ｃ：従来の金型の例 ただし、ＡとＣは金属バーの未装着例FIG. 4 shows an example of a mold A: an example used for a three-dimensional net having a pleated cross section B: a mold obtained by engraving a flat part A C: an example of a conventional mold However, A and C are examples in which a metal bar is not mounted.
【図５】 金属バーの一実施形態を示す斜視図である。FIG. 5 is a perspective view showing one embodiment of a metal bar.
１ 連続フィラメント ２ 紡糸口金 ３ 連続フィラメントが金型の上で融着接着した網状物 ４、１４、１６ 金型（ただし、１４と１６は金属バー
未装着） ５ 本発明の立体網状体 ６ 圧着ロール ７ 導電性糸条 ８ 平面体 ９、１５ 金属バー １０ 導電性テープ １１ フラット部 ８１ 平面体と立体網状体との接着点REFERENCE SIGNS LIST 1 continuous filament 2 spinneret 3 net-like material in which continuous filaments are fused and bonded on a die 4, 14, 16 die (however, 14 and 16 have no metal bar attached) 5 three-dimensional net of the present invention 6 pressure roll 7 Conductive thread 8 Flat body 9, 15 Metal bar 10 Conductive tape 11 Flat part 81 Adhesion point between flat body and three-dimensional net-like body
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） // Ｂ０９Ｂ 1/00 ＺＡＢ Ｂ０９Ｂ 1/00 ＺＡＢＦ (72)発明者 高井 庸輔 兵庫県加古郡播磨町古宮877番地 ダイワ ボウポリテック株式会社播磨研究所内 Ｆターム(参考） 2D043 DD03 DD09 4D004 AA46 BB05 BB06 DA01 DA09 4L047 AA02 AA03 AA21 AA28 AB03 BA08 BD03 CA12 CA15 CA19 CB01 CB10 CC10 CC16 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) // B09B 1/00 ZAB B09B 1/00 ZABF (72) Inventor Yousuke Takai 877 Komiya, Harima-cho, Kako-gun, Hyogo Prefecture. Address Daiwa Bo Polytech Co., Ltd. Harima Laboratory F-term (reference) 2D043 DD03 DD09 4D004 AA46 BB05 BB06 DA01 DA09 4L047 AA02 AA03 AA21 AA28 AB03 BA08 BD03 CA12 CA15 CA19 CB01 CB10 CC10 CC16
Claims (9)
１〜１．５ｍｍの多数の連続フィラメントが網状に重ね
合わされ、その交差点で融着接着されて一体化した、実
質厚みが０．１〜４ｍｍの網状体を形成し、該網状体
が、厚み方向断面において凹凸状に波打っており、見掛
けの厚みが４〜５０ｍｍで、該網状体の凹凸によって大
きな空隙を形成したマット形状の立体網状体であって、
該立体網状体の幅方向に間欠的に導電性糸条が配され、
長さ方向に該糸条が伸びており、該糸条に接触交差する
様に１本または複数本の導電性糸条が配され、これらの
糸条の側の立体網状体の表面に平面体を張りつけてあ
る、導電性を特徴とする立体網状体。1. A thickness of 0. 1 made of a thermoplastic synthetic resin.
A large number of continuous filaments having a thickness of 1 to 1.5 mm are superimposed in a net shape, and are fused and bonded at their intersections to form a net having a substantial thickness of 0.1 to 4 mm. A mat-shaped three-dimensional net-like body having a wavy uneven shape in cross section, an apparent thickness of 4 to 50 mm, and a large void formed by the unevenness of the net-like body,
Conductive yarns are intermittently arranged in the width direction of the three-dimensional network,
The yarn extends in the length direction, and one or more conductive yarns are arranged so as to contact and intersect with the yarn, and a flat body is formed on the surface of the three-dimensional net on the side of these yarns. A three-dimensional reticulated body characterized by conductivity.
面においてプリーツ状で、長さ方向に整然と平行して配
列している連続した複数の畦部と溝部とが、交互に形成
されているプリーツ形状の立体網状体であることを特徴
とする請求項１記載の立体網状体。2. A plurality of mat-shaped three-dimensional net-like bodies are pleated in a cross section in a thickness direction, and a plurality of continuous ridges and grooves arranged in order in parallel in the length direction are formed alternately. The three-dimensional network according to claim 1, which is a pleated three-dimensional network.
る畦部が長さ方向に間歇的に配され、該交差畦部に導電
性糸条および／または導電性テープが配され、何れかの
長さ方向に展開している導電性糸条と少なくとも一部が
接触していることを特徴とする請求項２記載の立体網状
体。3. A ridge portion continuous in the length direction and a ridge portion orthogonal to the ridge portion are intermittently arranged in the length direction, and a conductive yarn and / or a conductive tape are arranged in the cross ridge portion. 3. The three-dimensional net-like body according to claim 2, wherein at least a part of the three-dimensional net-like body is in contact with the conductive yarn developed in any length direction.
び／または銅線であることを特徴とする請求項１〜３の
いずれかに記載の立体網状体。4. The three-dimensional net according to claim 1, wherein the conductive yarn is a carbon fiber and / or a copper wire.
いる銅線であることを特徴とする請求項４記載の立体網
状体。5. The three-dimensional net according to claim 4, wherein the conductive yarn is a copper wire coated with a water-soluble resin.
スパンボンド不織布である請求項１〜４のいずれかに記
載の立体網状体。6. The three-dimensional network according to claim 1, wherein the flat body is a spunbond nonwoven fabric of polyethylene terephthalate.
様な、台形のブロックが平面上に複数配置されており、
該複数の台形の上辺と底面がそれぞれ同一の平面上にあ
る形状の金型上に、該金型を一定速度で移動させなが
ら、幅方向に一定間隔で複数本の導電性糸条をスプール
から繰り出して該金型上および／または金型上空に位置
させ、幅方向で往復する様なした糸条供給装置から導電
性糸条を繰り出して長さ方向に伸びている前記導電性糸
条に交差させた後、該導電性糸条と金型の上から熱可塑
性合成樹脂からなる、太さが０．１〜１．５ｍｍの多数
の連続フィラメントが紡出され、該金型に添って連続フ
ィラメントが網状に重ね合わされ、その交差点で融着接
着されて一体化した、プリーツ形状の網状体で大きな空
隙を形成したマット状の、厚みが４〜５０ｍｍの立体網
状体を製造するに当たり、連続フィラメントが不十分な
固化状態の位置に、該金型に押しつける圧着ロールが装
着されており、該圧着ロールに添わせて平面体を供給し
て、平面体を圧着させて一体化させた、導電性を特徴と
する立体網状体の製造方法。7. A plurality of trapezoidal blocks having a cross section obtained by slightly cutting and removing a vertex of a triangle are arranged on a plane,
On a mold having a shape in which the upper side and the bottom face of the trapezoids are respectively on the same plane, while moving the mold at a constant speed, a plurality of conductive yarns are wound from the spool at regular intervals in the width direction. The conductive yarn is fed from a yarn supply device that is fed out and positioned above the mold and / or above the mold and reciprocates in the width direction, and intersects the conductive yarn extending in the length direction. After that, a large number of continuous filaments made of thermoplastic synthetic resin and having a thickness of 0.1 to 1.5 mm are spun out of the conductive yarn and the mold, and the continuous filaments are put along the mold. Are superimposed in a net shape, and are fused and bonded at their intersections to form a mat-shaped three-dimensional net having a thickness of 4 to 50 mm. In the position of insufficient solidification, Crimping roll for pressing the mold is mounted, and supplies the planar body by Sowase the piezoelectric deposition roll were integrated by crimping the planar body, the method of manufacturing a three-dimensional net-like member, wherein the conductivity.
に渡って０．３〜２ｍｍ厚みで、幅が３〜５０ｍｍの金
属バーが設置してある金型を用い、連続フィラメントを
集積する前に、導電性糸条および／または導電性テープ
を該金属バーの上に乗せ、その後、連続フィラメントを
この上に積層し、圧着ロールと金属バーの間で、金属バ
ーに積層された連続フィラメントを圧着して、該導電性
糸条や導電性テープを連続フィラメントで一体化させ
て、電気信号のピックアップ部および／または扁平な帯
状の易折り曲げ部としたことを特徴とする請求項７記載
の立体網状体の製造方法。8. A continuous filament using a mold provided with a metal bar having a thickness of 0.3 to 2 mm and a width of 3 to 50 mm over the entire width at any interval in the length direction of the mold. Before stacking, a conductive thread and / or a conductive tape are placed on the metal bar, and then a continuous filament is laminated thereon, and between the pressing roll and the metal bar, the metal bar is laminated. The continuous filament is pressure-bonded, and the conductive yarn and the conductive tape are integrated with the continuous filament to form an electric signal pickup portion and / or a flat band-like easily bent portion. 8. The method for producing a three-dimensional network according to item 7.
該三角柱が該平面上にない稜線の上部が、該平面で平行
に切断除去されており、該三角柱が長さ方向に、一定間
隔で整然と配列されている形状の金型であることを特徴
とする請求項７〜８のいずれかに記載の立体網状体の製
造方法。9. The mold, wherein one surface of the triangular prism is on a plane,
The upper part of the ridgeline where the triangular prism is not on the plane is cut and removed in parallel on the plane, and the triangular prism is a mold having a shape in which the triangular prism is arranged regularly at regular intervals in the length direction. The method for producing a three-dimensional network according to any one of claims 7 to 8.
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|---|---|---|---|
| JP2000309833A JP4580082B2 (en) | 2000-10-10 | 2000-10-10 | Three-dimensional network and method for producing the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000309833A JP4580082B2 (en) | 2000-10-10 | 2000-10-10 | Three-dimensional network and method for producing the same |
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| Publication Number | Publication Date |
|---|---|
| JP2002115167A true JP2002115167A (en) | 2002-04-19 |
| JP4580082B2 JP4580082B2 (en) | 2010-11-10 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6014136U (en) * | 1983-07-04 | 1985-01-30 | 大和紡績株式会社 | Vegetation mesh |
| JPH07197438A (en) * | 1994-01-07 | 1995-08-01 | Daiwabo Co Ltd | Civil engineering material |
| JPH09290228A (en) * | 1996-04-24 | 1997-11-11 | Shimizu Corp | Water leakage detector |
| JPH09318482A (en) * | 1996-05-29 | 1997-12-12 | Shimizu Corp | Detecting method of position of water leakage of sealing sheet |
-
2000
- 2000-10-10 JP JP2000309833A patent/JP4580082B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6014136U (en) * | 1983-07-04 | 1985-01-30 | 大和紡績株式会社 | Vegetation mesh |
| JPH07197438A (en) * | 1994-01-07 | 1995-08-01 | Daiwabo Co Ltd | Civil engineering material |
| JPH09290228A (en) * | 1996-04-24 | 1997-11-11 | Shimizu Corp | Water leakage detector |
| JPH09318482A (en) * | 1996-05-29 | 1997-12-12 | Shimizu Corp | Detecting method of position of water leakage of sealing sheet |
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| Publication number | Publication date |
|---|---|
| JP4580082B2 (en) | 2010-11-10 |
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