JP2770263B2 - Adhesive member for water impervious sheet joint defect detection method and water impervious sheet joint defect detection method - Google Patents
Adhesive member for water impervious sheet joint defect detection method and water impervious sheet joint defect detection methodInfo
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- JP2770263B2 JP2770263B2 JP1676095A JP1676095A JP2770263B2 JP 2770263 B2 JP2770263 B2 JP 2770263B2 JP 1676095 A JP1676095 A JP 1676095A JP 1676095 A JP1676095 A JP 1676095A JP 2770263 B2 JP2770263 B2 JP 2770263B2
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- Japan
- Prior art keywords
- adhesive
- adhesive member
- pressure
- sheet
- joint
- Prior art date
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Description
【０００１】[0001]
【産業上の利用分野】本発明は、廃棄物処分場に敷設さ
れ、廃棄物から生じる汚水の漏出を防止するために使用
される遮水シートの接合部欠損箇所検知法及び遮水シー
ト接合部欠損箇所検知法用着部材に関する。The present invention relates, is laying waste disposal sites
Used to prevent leakage of wastewater from waste
Method for detecting defective joints of impermeable sheets and impermeable seams
The present invention relates to a wearing member for a method of detecting a defective portion of a joint .
【０００２】[0002]
【従来の技術】産業廃棄物や一般廃棄物を投棄する例え
ば埋立て型の廃棄物処分場において、例えば特開平6‐2
41939号公報等に記載されているように、該処分場から
漏出する汚水が地下に浸透して環境汚染を引き起こすこ
とを防止するために、処分場の底面に遮水工を実施する
ことが義務付けられている。このような遮水工として
は、確実性、安全性、施工性、経済性等の観点から、軟
質の合成樹脂系あるいはゴム系の遮水シートを敷設する
方法が採用されている。これらの遮水シートは、広大な
面積を占める廃棄物処分場の底面を一枚の連続シートで
一度に覆うことは施工上困難なため、複数に分割したシ
ートを施工現場で溶着や接着剤を介した圧着等により端
部を接合・一体化することによって、廃棄物処分場の底
面全域を覆うように敷設される。2. Description of the Related Art For example, in a landfill type waste disposal site for dumping industrial waste and general waste, for example, Japanese Patent Laid-Open Publication No.
As described in 41939, etc., it is mandatory to implement a seepage control on the bottom of the disposal site to prevent sewage leaking from the disposal site from penetrating into the basement and causing environmental pollution. Have been. A method of laying a soft synthetic resin-based or rubber-based water-impervious sheet is adopted as such a water-impervious work from the viewpoints of reliability, safety, workability, economy, and the like. Since it is difficult to apply these water-impervious sheets to the waste disposal site, which occupies a vast area, with a single continuous sheet at a time, it is difficult to apply multiple sheets at the construction site by welding or adhesive. The ends are joined and integrated by crimping, etc., so as to cover the entire bottom surface of the waste disposal site.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記の
ように複数に分割したシートを施工現場で接合・一体化
する方法は接合不良を生じる場合があり、この接合不良
による欠損箇所から汚水が外部に漏出する恐れがあると
いう問題があった。また、このような欠損箇所を検知す
るために種々の方法が提案されているが、これまで提案
された方法では、施工現場において簡易かつ迅速に欠損
箇所を検知、特定することができないという問題があっ
た。However, in the method of joining and integrating the plurality of divided sheets at the construction site as described above, there is a case where a joining failure occurs, and sewage is discharged from a defective portion due to the joining failure to the outside. There was a problem that it could leak. In addition, various methods have been proposed to detect such a defective part. However, the methods proposed so far have a problem that the defective part cannot be easily and quickly detected and specified at a construction site. there were.
【０００４】本発明の目的は、上記従来技術の有してい
た課題を解決して、施工現場において、簡易、迅速かつ
容易に検知作業を行うことができるとともに、欠損箇所
を精度良く検知、特定することのできる遮水シート接合
部欠損箇所検知法及び遮水シート接合部欠損箇所検知法
用粘着部材を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and to easily, quickly and easily detect a work at a construction site, and accurately detect and specify a defective portion. Detecting method for defective part of water-impervious sheet joint and method for detecting defective part of water-impervious sheet joint
An object of the present invention is to provide a pressure-sensitive adhesive member .
【０００５】[0005]
【課題を解決するための手段】上記目的は、テープ基材
面の中央部を除く周縁部分のみに粘着剤を塗工してなる
粘着テープを、上記遮水シート表面の上記接合部の継ぎ
目を含む部分に、上記粘着剤が上記継ぎ目の両側に距離
を置いて粘着するように貼り付けて、上記遮水シートと
上記粘着テープとの間に帯状の通気空間を形成し、両面
粘着シートと、両端が開放された通気管の中央部を粘着
性組成物からなるシートで挟んでなる粘着部材とのうち
の少なくとも後者１つを含む２つによって上記通気空間
の両端を塞いで、上記通気空間が上記通気管のみによっ
て外気に通じている状態とし、上記通気管を介して上記
通気空間を圧力計及び減圧または加圧手段に連結し、上
記通気空間の圧力を大気圧とは異なる圧力とした後に、
上記通気空間と上記圧力計とからなる系を密封系とし、
上記圧力計の読みの経時変化を観測することによって上
記接合部の欠損を検知する方法及びその方法に適する粘
着部材を提供することによって達成することができる。 The object of the present invention is to provide a tape base material.
Adhesive is applied only to the peripheral part except the center of the surface
Connect the adhesive tape to the joint on the surface of the impermeable sheet.
In the area including the eyes, the adhesive is placed on both sides of the seam.
Place it and stick it so that it adheres to the impermeable sheet.
Form a band-shaped ventilation space between the adhesive tape and both sides
Adhesive sheet and central part of vent pipe with both ends open
With an adhesive member sandwiched between sheets made of a hydrophilic composition
The ventilation space by two, including at least one of
Cover both ends of the
And open to the outside air.
Connect the ventilation space to a pressure gauge and a decompression or pressurization means.
After setting the pressure of the ventilation space different from the atmospheric pressure,
The system consisting of the ventilation space and the pressure gauge is a sealed system,
By observing the change over time of the above pressure gauge reading,
A method for detecting the loss of the joint and a viscosity suitable for the method.
This can be achieved by providing a mounting member.
【０００６】また、上記粘着部材として、内径１〜５mm
のポリエチレンチューブまたは金属チューブを粘着性組
成物からなるシートで挟み、さらに、上記チューブと上
記シートとの隙間をシーリング剤で充填してなる粘着部
材が適している。 The adhesive member may have an inner diameter of 1 to 5 mm.
Polyethylene tube or metal tube with adhesive
Sandwich with a sheet made of synthetic material,
Adhesive part filled with a sealant in the gap with the sheet
Materials are suitable.
【０００７】また、上記粘着テープ、粘着シートまたは
粘着部材における粘着性組成物としてブチルゴム系粘着
剤が適している。 Further , the above-mentioned pressure-sensitive adhesive tape, pressure-sensitive adhesive sheet or
Butyl rubber adhesive as an adhesive composition for adhesive members
Agents are suitable.
【０００８】また、上記方法において、上記通気管に耐
圧ホースを連結し、上記耐圧ホースを真空ポンプまたは
コンプレッサに連結するとともにその途中に圧力計を取
付け、上記通気空間を減圧または加圧したときの圧力の
変化を観察することによって、遮水シートの接合部の欠
陥箇所を検知することが可能となる。[0008] In the above method, the vent pipe may be resistant.
Connect the pressure hose and connect the pressure hose to a vacuum pump or
Connect to a compressor and take a pressure gauge
In addition, by observing a change in pressure when the ventilation space is depressurized or pressurized, it is possible to detect a defective portion of a joint portion of the water impermeable sheet.
【０００９】上記粘着テープの基材としては、遮水シー
トの敷設場所には鋭利な小石等が存在しているために、
ある程度の強度を有するものを使用する必要がある。具
体的には、厚さが0.012〜1.0mm、引張破断強度が30〜10
00kg/cm2、伸び率が50〜1300％である合成樹脂あるいは
ゴム系ポリマが望ましい。また、その粘着剤としては、
アクリル系あるいはゴム系もしくはホットメルト系のも
のが望ましく、厚さとしては0.03〜1.0mmが望ましい。As a base material of the pressure-sensitive adhesive tape, sharp pebbles and the like are present at a place where the water-impervious sheet is laid.
It is necessary to use a material having a certain strength. Specifically, the thickness is 0.012～1.0Mm, pull Choyabu sectional strength 30-10
A synthetic resin or rubber-based polymer having 00 kg / cm 2 and an elongation of 50 to 1300% is desirable. Also, as the adhesive,
Acrylic, rubber or hot-melt materials are desirable, and the thickness is preferably 0.03 to 1.0 mm.
【００１０】また、上記両面粘着シートとしては、ゴム
系、あるいはアクリル系もしくはホットメルト系の粘着
性組成物を厚さが0.03〜2.0mmのシート状としたものが
望ましく、特に、ブチルゴム系粘着剤を用いたものは、
密着力、密閉性の点で特に優れている。[0010] The double-sided pressure-sensitive adhesive sheet is preferably a sheet of a rubber-based, acrylic or hot-melt pressure-sensitive adhesive composition having a thickness of 0.03 to 2.0 mm. The one using
Particularly excellent in adhesion and sealing.
【００１１】[0011]
【実施例】以下、本発明の遮水シート接合部欠損箇所検
知法及び遮水シート接合部欠損箇所検知法用粘着部材に
ついて実施例によって具体的に説明する。以下、本発明
の遮水シート接合部欠損箇所検知用テープの構成につい
て実施例によって具体的に説明する。図１に、底面全域
に遮水シートを敷設した廃棄物処分場の断面の構成を示
す。ここで、遮水シート11は、例えば軟質の合成樹脂あ
るいはゴム系のシート部材から製作されるものである
が、一枚の連続体として広大な廃棄物処分場の全底面域
を一度に覆うことは施工上困難であるため、作業現場に
おいて作業に適した所定の大きさの単位遮水シートを、
溶着や接着剤を介した圧着によって、その端部を接合部
13として互いに重ね合わせて接合し、廃棄物処分場の全
底面を覆い得る大きさに一体化する。その上方に、さら
に、保護マットとしてのサンドマット12を積層し、しか
る後にこれらの上方に廃棄物Ｈを投棄するものである。The adhesive member for the method for detecting a defective portion of a water-impervious sheet joint and the method for detecting a defective portion of a water-impervious sheet joint according to the present invention will be specifically described below with reference to examples. Hereinafter, the configuration of the tape for detecting a defective portion of the water-impervious sheet joint portion of the present invention will be specifically described with reference to examples. Figure 1 shows a cross-sectional configuration of the waste disposal site laid seepage control sheet on the bottom surface throughout. Here, the impermeable sheet 11 is made of, for example, a soft synthetic resin or a rubber-based sheet member, but covers the entire bottom surface area of a vast waste disposal site at one time as one continuous body. Is difficult to construct, so a unit size impermeable sheet suitable for work at the work site,
The end is joined by welding or crimping with adhesive
As a part 13, they are superposed and joined together, and integrated into a size that can cover the entire bottom surface of the waste disposal site. A sand mat 12 as a protective mat is further laminated thereon, and thereafter, the waste H is dumped above these.
【００１２】本発明の遮水シート接合部欠損箇所検知法
は、上記遮水シート接合部13の欠損箇所を検知するため
の方法であり、検知を行うための操作を図２によって説
明する。すなわち、まず、接合部13の延長方向に沿っ
て、基材表面の中央部に粘着剤を塗工することなく基材
表面の両周縁部にのみ粘着剤を塗工したテープ14(図３)
を遮水シートの上面に貼着する。これによって、接合部
13の端面には、該端面に沿って延長する通気空間15が形
成される。次いで、通気空間15の両端部を粘着性組成物
からなる両面粘着テープで密閉する。ただし、通気空間
15の少なくとも一方の端部は、ポリエチレンチューブま
たは金属チューブ４を粘着性組成物を有するシート２枚
で挟み、さらに、上記チューブ４と上記シートとの隙間
をシーリング剤６を充填した両面粘着テープ16(図４)で
密閉する。次に、上記チューブ４に密閉された通気空間
15の真空吸引あるいは空気圧入を行うための耐圧ホース
17を連結する。なお、この耐圧ホースは、真空ポンプ18
あるいはコンプレッサ19に連通するとともに、その途中
に圧力計20を取り付ける。The method for detecting a defective portion of the water-impervious sheet joint according to the present invention is to detect a defective portion of the water-impervious sheet joint 13.
The operation for performing the detection will be described with reference to FIG. That is, first, along the extending direction of the joint portion 13, the base material is not applied to the center portion of the base material surface without applying an adhesive.
Tape 14 coated with adhesive only on both edges of the surface (Fig. 3)
On the top surface of the impermeable sheet . This allows the joint
A ventilation space 15 extending along the end face is formed at the end face of the thirteen. Next, both ends of the ventilation space 15 are sealed with a double-sided adhesive tape made of an adhesive composition. However, ventilation space
At least one end of 15 is a double-sided adhesive tape 16 in which a polyethylene tube or a metal tube 4 is sandwiched between two sheets having an adhesive composition, and a gap between the tube 4 and the sheet is filled with a sealing agent 6. Seal (FIG. 4). Next, the ventilation space sealed in the tube 4
15 pressure-resistant hoses for vacuum suction or air injection
Connect 17 Note that this pressure-resistant hose is
Alternatively, while communicating with the compressor 19, a pressure gauge 20 is attached on the way.
【００１３】これらの取付け作業が終了したら、次に、
真空ポンプ18あるいはコンプレッサ19を用いて、通気空
間15を負圧状態あるいは加圧状態にする。圧力状態が一
定になったところでコック21を閉じ、しばらくの間放置
して圧力計20によって圧力の変化を観察する。負圧力あ
るいは加圧力の低下が検出されることにより、粘着テー
プ14によって覆われた接合部13の何れかの部分に欠損箇
所が存在することが判明することになる。After these mounting operations are completed,
Using the vacuum pump 18 or the compressor 19, the ventilation space 15 is set in a negative pressure state or a pressurized state. When the pressure state becomes constant, the cock 21 is closed, left for a while, and the pressure change is observed by the pressure gauge 20. By detecting a decrease in the negative pressure or the pressing force, it is determined that a defective portion exists in any part of the joint 13 covered with the adhesive tape 14.
【００１４】[0014]
【発明の効果】以上述べてきたように、本発明の遮水シ
ート接合部欠損箇所検知法に基づき、接合部を所定長覆
うことにより接合部の端面に形成した密閉通気空間の圧
力状態の変動を検出するという簡易な方法によって、欠
損箇所の有無を、現場において容易、迅速かつ正確に検
知することができる。As described above , based on the method for detecting a defective portion of a water-impervious sheet joint according to the present invention, the pressure state of the closed ventilation space formed on the end face of the joint by covering the joint for a predetermined length. The presence / absence of a defective portion can be easily, quickly, and accurately detected at the site by a simple method of detecting a defect.
【図１】遮水シートの敷設状況を示す用部拡大断面図。FIG. 1 is an enlarged cross-sectional view of a part showing a laying state of a seepage control sheet.
【図２】遮水シート接合部の欠損箇所の検知に使用する
テープの一実施例を示す概略斜視図。FIG. 2 is a schematic perspective view showing one embodiment of a tape used for detecting a defective portion of a water-impervious sheet joint.
【図３】本発明遮水シート接合部欠損箇所検知法用粘着
部材の１つである粘着テープの構成を示す一部断面斜視
図。FIG. 3 Adhesion for detecting a defective portion of a joint part of a water-impermeable sheet of the present invention
FIG. 3 is a partial cross-sectional perspective view showing a configuration of an adhesive tape which is one of the members .
【図４】本発明遮水シート接合部欠損箇所検知法用粘着
部材の１つである両面粘着テープの構成を示す斜視図。FIG. 4 is an adhesive for detecting a defective portion of a joint of a water-impermeable sheet according to the present invention.
The perspective view showing the composition of the double-sided adhesive tape which is one of the members .
１…基材、２…粘着剤、３…剥離ライナ、４…ポリエチ
レンチューブまたは金属チューブ、５…シート状粘着性
組成物、６…シーリング剤、11…遮水シート、13…接合
部、14…粘着テープ、15…通気空間、16…両面粘着テー
プ、17…耐圧ホース、18…真空ポンプ、19…コンプレッ
サ、20…圧力計、21…コック。DESCRIPTION OF SYMBOLS 1 ... Base material, 2 ... Adhesive, 3 ... Release liner, 4 ... Polyethylene tube or metal tube, 5 ... Sheet-shaped adhesive composition, 6 ... Sealing agent, 11 ... Waterproof sheet, 13 ... Joint, 14 ... Adhesive tape, 15 ... ventilation space, 16 ... double-sided adhesive tape, 17 ... pressure-resistant hose, 18 ... vacuum pump, 19 ... compressor, 20 ... pressure gauge, 21 ... cock.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 河口 武志 東京都中央区日本橋三丁目12番１号 太 洋興業株式会社内 (56)参考文献 特開 平６−241939（ＪＰ，Ａ) 特開 平６−294700（ＪＰ，Ａ) 実開 昭62−101838（ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takeshi Kawaguchi 3-12-1, Nihonbashi, Chuo-ku, Tokyo Inside Taiyo Kogyo Co., Ltd. (56) References JP-A-6-241939 (JP, A) JP-A-Hei 6-294700 (JP, A) Full-scale opening 62-101838 (JP, U)
Claims (5)
る汚水の漏出を防止する遮水シートの接合部欠損箇所検
知法であって、 テープ基材面の中央部を除く周縁部分のみに粘着剤を塗
工してなる第１の粘着部材を、上記遮水シート表面の上
記接合部の継ぎ目を含む部分に、上記粘着剤が上記継ぎ
目の両側に、それぞれ、距離を置いて粘着するように貼
り付けて、上記遮水シートと上記第１の粘着部材との間
に帯状の通気空間を形成し、 両面粘着シートよりなる第２の粘着部材、両端が開放さ
れた通気管の中央部を粘着性組成物からなるシートで挟
んでなる第３の粘着部材のうちの、上記第２の粘着部材
及び上記第３の粘着部材をそれぞれ１つずつ、または、
上記第３の粘着部材２つによって上記通気空間の両端を
塞いで、上記通気空間が上記通気管のみによって外気に
通じている状態とし、 上記通気管を介して上記通気空間を圧力計及び減圧また
は加圧手段に連結し、上記通気空間の圧力を大気圧とは
異なる圧力とした後に、上記通気空間と上記圧力計とか
らなる系を密封系とし、上記圧力計の読みの経時変化を
観測することによって上記接合部の欠損を検知す ること
を特徴とする遮水シート接合部欠損箇所検知法。1. A laid waste disposal site, the joint defect箇Tokoroken of water shield sheet to prevent leakage of sewage resulting from waste
This is a known method, and the adhesive is applied only to the periphery of the tape substrate surface except the center.
The first adhesive member that has been worked is placed on the surface of the impermeable sheet.
The above adhesive is applied to the joint including the joint at the joint.
Attach on both sides of the eye so that they are separated from each other
Between the water impermeable sheet and the first adhesive member.
A second pressure-sensitive adhesive member formed of a double-sided pressure-sensitive adhesive sheet, with both ends open.
The center of the vented pipe is sandwiched between sheets of the adhesive composition.
The second adhesive member of the third adhesive member
And one each of the third adhesive member, or
The two ends of the ventilation space are separated by the two third adhesive members.
Block the ventilation space to the outside air only with the ventilation pipe
And it is understood condition, the pressure gauge the ventilation space through the vent pipe and vacuum also
Is connected to the pressurizing means, and the pressure in the ventilation space is the atmospheric pressure.
After setting the pressure differently, the ventilation space and the pressure gauge
The system consisting of a sealed
Water shield sheet joined portion chipped portions detection method characterized that you detect the defects of the joint by monitoring.
て、引張破断強度が30〜1000kg/cm2、伸び率が50〜1300
％である合成樹脂系あるいはゴム系ポリマからなる厚さ
0.012〜1.0mmのテープを基材とし、アクリル系あるいは
ゴム系もしくはホットメルト系の粘着性組成物を基材の
中央部には塗工することなく基材の両周縁部にのみ厚さ
が0.03〜1.0mmとなるように塗工してなることを特徴と
する遮水シート接合部欠損箇所検知法用粘着部材。2. The first adhesive member according to claim 1 , wherein
The tensile breaking strength is 30 to 1000 kg / cm 2 , and the elongation is 50 to 1300
% Thickness of synthetic resin or rubber based polymer
With a tape of 0.012 to 1.0 mm as a base material, a thickness of 0.03 is applied only to both peripheral edges of the base material without applying an acrylic or rubber-based or hot melt-based adhesive composition to the center of the base material. ~1.0mm become so coated to a Rukoto you <br/> wherein impermeable sheet joined portion chipped portion detecting method for pressure-sensitive member.
て、厚さが0.03〜2.0mm、材料がアクリル系あるいはゴ
ム系もしくはホットメルト系のシート状粘着性組成物か
らなることを特徴とする遮水シート接合部欠損箇所検知
法用粘着部材。3. The second adhesive member according to claim 1 , wherein
Te, thickness 0.03～2.0Mm, material acrylic or rubber-based or hot-melt sheet-shaped adhesive compositions that be that impermeable sheet joined portion chipped portion detects characterized consisting of
Legal adhesive member .
て、内径１〜５mmのポリエチレンチューブまたは金属チ
ューブを粘着性組成物からなるシートで挟み、さらに、
上記チューブと上記シートとの隙間をシーリング剤で充
填してなることを特徴とする遮水シート接合部欠損箇所
検知法用粘着部材。4. The third adhesive member according to claim 1 , wherein
Te, sandwiched between sheets made of polyethylene tube or metal tube having an inner diameter of 1~5mm from the adhesive composition, further,
It said tube and said sheet and the gap filled with a sealing agent in such benzalkonium you wherein the impermeable sheet joined portion chipped portion detecting method for pressure-sensitive adhesive member.
成物であることを特徴とする請求項２、３または４記載
の遮水シート接合部欠損箇所検知法用粘着部材。5. The upper Kineba adhesive composition Gab Chirugomu based adhesive sets
The pressure-sensitive adhesive member according to claim 2, 3 or 4 , which is a synthetic product .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1676095A JP2770263B2 (en) | 1995-02-03 | 1995-02-03 | Adhesive member for water impervious sheet joint defect detection method and water impervious sheet joint defect detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1676095A JP2770263B2 (en) | 1995-02-03 | 1995-02-03 | Adhesive member for water impervious sheet joint defect detection method and water impervious sheet joint defect detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08210939A JPH08210939A (en) | 1996-08-20 |
| JP2770263B2 true JP2770263B2 (en) | 1998-06-25 |
Family
ID=11925195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1676095A Expired - Fee Related JP2770263B2 (en) | 1995-02-03 | 1995-02-03 | Adhesive member for water impervious sheet joint defect detection method and water impervious sheet joint defect detection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2770263B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100909242B1 (en) * | 2008-04-24 | 2009-07-27 | (주)유민에쓰티 | Leak sensor apparatus for sensing moisture |
| CN105973537A (en) * | 2016-07-08 | 2016-09-28 | 北京动力机械研究所 | Pincer type duplex sealing detection apparatus |
-
1995
- 1995-02-03 JP JP1676095A patent/JP2770263B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08210939A (en) | 1996-08-20 |
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