JPH10128268A - Method for detecting damaged portion of impermeable sheet and waterproofing method using impermeable sheet - Google Patents
Method for detecting damaged portion of impermeable sheet and waterproofing method using impermeable sheetInfo
- Publication number
- JPH10128268A JPH10128268A JP28444596A JP28444596A JPH10128268A JP H10128268 A JPH10128268 A JP H10128268A JP 28444596 A JP28444596 A JP 28444596A JP 28444596 A JP28444596 A JP 28444596A JP H10128268 A JPH10128268 A JP H10128268A
- Authority
- JP
- Japan
- Prior art keywords
- water
- sheet
- stopping
- blocking
- sections
- 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
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
- Processing Of Solid Wastes (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
(57)【要約】
【課題】 池又は廃棄物処分場等の止水施工面に敷設す
る遮水シートの破損部を現場において容易に検知・特定
することができる遮水シートの破損部検出方法並びに破
損状態を検知後、汚染水が外部に流出する前に破損箇所
を止水することができる遮水シートを用いた止水工法を
提供する。
【解決手段】 下層シートと上層シートとからなる二重
構造の遮水シートを用い、内部を多数の区画に分割して
各々の区画内と地上の止水材供給源とを連結してスラリ
ー状の止水材を充填し、止水材のレベル変化で漏水を検
知する。また、止水材を常に各区画内に補給可能とし、
遮水シートの破損時、止水材が止水層を形成するように
する。
(57) [Summary] [Problem] A method for detecting a damaged portion of a water-impervious sheet that can be easily detected and specified on site at a site where a water-impervious sheet is laid on a water stoppage work surface such as a pond or a waste disposal site. In addition, the present invention provides a water stoppage method using a water-blocking sheet that can stop a damaged portion before a contaminated water flows out after detecting a damage state. SOLUTION: A water-blocking sheet having a double structure composed of a lower sheet and an upper sheet is used, the inside is divided into a number of sections, and the inside of each section is connected to a water-blocking material supply source on the ground to form a slurry. Of water stoppage material, and water leakage is detected by the level change of the water stoppage material. In addition, we can always supply waterstop material in each section,
In the event of breakage of the impermeable sheet, the impermeable material forms a impermeable layer.
Description
【０００１】[0001]
【発明の属する技術分野】この発明は遮水シートの欠損
箇所検知方法に関し、池又は、廃棄物処分場に敷設され
て廃棄物から生じる汚水の漏出を防止する遮水シート
の、欠損箇所を検知するための遮水シートの破損部検知
方法及び遮水シートを用いた止水工法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for detecting a defective portion of a water-impervious sheet, and more particularly to detecting a defective point of a water-impervious sheet laid on a pond or a waste disposal site to prevent leakage of wastewater generated from waste. The present invention relates to a method for detecting a damaged portion of a water-impervious sheet and a water-stopping method using the water-impervious sheet.
【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
ば埋立型の廃棄物処分場では、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、処分場の底面に遮水工事を実施することが義務
付けられている。かかる遮水工事として、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。そして、これらの遮水シートは、広大な面積を有
する廃棄物処分場の底面を一枚の遮水シートによって一
度に覆うことは施工上困難なため、複数に分割したもの
を、現場において、溶着や接着剤を介した圧着等により
その端部を接合一体化することにより、当該遮水シート
によって廃棄物処分場の底面全域を覆うように敷設する
工法が採用されている。2. Description of the Related Art For example, in a landfill-type waste disposal site that dumps industrial waste and general waste, it is necessary to prevent the wastewater leaking from the disposal site from penetrating underground and causing environmental pollution. It is obliged to carry out waterproofing work on the bottom of the building. As such water-blocking work, a method of laying a soft synthetic resin-based or rubber-based water-blocking sheet has been adopted 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 has a large area, at a time with a single water-impervious sheet, it is necessary to weld multiple parts at the site. A method of laying so as to cover the entire bottom surface of the waste disposal site with the water-impervious sheet by joining and integrating the ends by pressure bonding or the like via an adhesive or the like.
【０００３】遮水シ−トには軟質の合成樹脂系、ゴム系
のシートのみを敷設する以外に、米国特許第４、５０
１，７８８号等に開示されるように、二枚の柔軟なシー
トの間にベントナイト等の膨潤性のある粘土層やまたは
吸水性樹脂を封入したシ−トが採用されている。[0003] In addition to laying only soft synthetic resin-based and rubber-based sheets on the impermeable sheet, US Pat.
As disclosed in US Pat. No. 1,788, for example, a sheet in which a swellable clay layer such as bentonite or a water-absorbing resin is enclosed between two flexible sheets is employed.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記複
数に分割した遮水シートを現場において接合一体化する
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。また池の貯水が完了した後又は廃棄物
の埋め立て作業中あるいは埋め立て完了後に遮水シ−ト
が破損し欠損箇所から汚水が外部に漏出する恐れがある
という問題も生じていた。かかる欠損箇所を検知すべく
種々の方法が提案されており、従来は真空、加圧、電気
的な検知システムが提案されている。However, the above-mentioned method of joining and integrating the plurality of divided water-impervious sheets on site may cause defective joints, and contaminated water leaks out from a defective portion due to the defective joints. There was a problem of fear. Also, there is a problem that the impermeable sheet may be damaged after the pond is completely stored, during the reclamation work of the waste, or after the reclamation is completed, and sewage may leak out from the defective portion. Various methods have been proposed to detect such a defective portion, and conventionally, a vacuum, pressurization, and electric detection system have been proposed.
【０００５】しかしこれらの方法では、現場において簡
易かつ迅速に欠損箇所を検知し特定することができない
という問題があった。またその検知測定方法は電気的又
は機械的なものによるもので、電気の場合はその検出シ
ステム及び検知した情報を伝えるコ−ドの切断、漏電、
腐食、水等による電気的なショ−トから正確な情報を長
期的に得ることができなかった。またたとえ検知するこ
とができても、その補修に関しては検知後すなわち汚染
水が外部に流出したあとにセメント等のグラウト注入等
により漏水部分の補修を行っていた。また補修するため
にセメント等のグラウトを注入した場合、注入した空間
部はすべて固化するため、次に固化した区間において漏
水が起こった場合は、検知システムが作動しない状況に
なるという難点があった。[0005] However, these methods have a problem in that it is not possible to easily and quickly detect and specify a defective portion on site. The detection and measurement methods are based on electrical or mechanical methods. In the case of electricity, the detection system and the code that transmits the detected information are disconnected, short-circuited,
Accurate information could not be obtained for a long period of time from electrical shorts due to corrosion, water, and the like. Even if it can be detected, after the detection, that is, after the contaminated water flows out, the leaked portion is repaired by grouting cement or the like. In addition, when grout such as cement was injected for repair, all the injected space was solidified.Therefore, if water leakage occurred in the next solidified section, there was a problem that the detection system would not operate. .
【０００６】そこで、この発明は、かかる従来の問題点
に着目してなされたもので、現場において簡易、迅速か
つ容易に検知作業を行なうことができるとともに、欠損
箇所を精度良く瞬時に検知、特定することができる遮水
シートの破損部検出方法を提供すること及び破損状態を
検知後すなわち汚染水が外部に流出する前に破損箇所を
止水することができ、なおかつ、同一区間が再度漏水し
ても何度も破損箇所を検知することができる止水工法を
提供することを目的とするものである。Accordingly, the present invention has been made in view of such a conventional problem, and it is possible to easily, quickly and easily perform a detection operation on site, and accurately and instantaneously detect and specify a defective portion. To provide a method of detecting a damaged portion of the impermeable sheet and to stop the damaged portion after detecting the damaged state, that is, before the contaminated water flows out, and that the same section leaks again. It is an object of the present invention to provide a water stoppage method that can detect a damaged portion many times.
【０００７】[0007]
【課題を解決するための手段】この発明は、上記目的を
達成するため、鋭意検討した結果、二重構造の遮水シー
ト内部を多数の区画に分割し、各々の区画内にスラリー
状の止水材を充填する着想を得た。According to the present invention, as a result of diligent studies to achieve the above object, the inside of a double-structured impermeable sheet is divided into a number of sections, and a slurry-like stop is provided in each section. I got the idea of filling with water.
【０００８】すなわち、この発明に係る遮水シートの破
損部検出方法は、下層シートと上層シートとからなる二
重構造の遮水シート内部を多数の区画に分割して池又は
廃棄物処分場等の止水施工面に敷設するとともに、各々
の区画内と地上の止水材供給源とを連結してスラリー状
の止水材を充填し、遮水シートの破損によって生じる止
水材の漏水を止水材供給源における止水材のレベル変化
により検知可能としたことを特徴とする遮水シートの破
損部検出方法である。That is, according to the method for detecting a damaged portion of a seepage control sheet according to the present invention, the inside of a seepage control sheet having a double structure consisting of a lower sheet and an upper sheet is divided into a number of sections, and a pond or a waste disposal site is provided. In addition to laying on the waterproofing construction surface, connecting the inside of each section and the above-mentioned waterproofing material supply source and filling the slurry-like waterproofing material, the leakage of the waterproofing material caused by the damage of the waterproofing sheet This is a method for detecting a damaged portion of a water-blocking sheet, wherein the detection can be performed by a change in the level of a water-blocking material in a water-blocking material supply source.
【０００９】また、この発明に係る遮水シートを用いた
止水工法は、下層シートと上層シートとからなる二重構
造の遮水シート内部を多数の区画に分割して池又は廃棄
物処分場等の止水施工面に敷設するとともに、各々の区
画内と地上の止水材供給源とを連結してスラリー状の止
水材を充填し、地上部との高低差による圧力またはポン
プなどの強制加圧力により常に各区画内に止水材を補給
可能となし、遮水シートの破損時、止水材が遮水シート
または地盤に浸透して止水層を形成するようにした遮水
シートを用いた止水工法である。Further, in the waterproofing method using the waterproof sheet according to the present invention, the inside of the waterproof sheet having a double structure consisting of a lower sheet and an upper sheet is divided into a number of sections, and a pond or a waste disposal site is provided. In addition to laying on the water-stop construction surface, etc., connect the inside of each section and the water-stop material supply source on the ground and fill it with slurry-like water-stop material, pressure or pump due to height difference from the ground part A water impermeable material can always be replenished in each section by forced pressure, and when the water impermeable sheet is damaged, the water impermeable material penetrates into the water impermeable sheet or the ground to form a water impermeable sheet This is a water stoppage method using
【００１０】さらにまた、他の止水工法として、下層シ
ートと上層シートとからなる二重構造の遮水シート内部
を多数の区画に分割して池又は廃棄物処分場等の止水施
工面に敷設するとともに、各々の区画内と地上の止水材
供給源とを連結してスラリー状の止水材を充填するとと
もに、別途各々の区画内と地上の真空ポンプとを連結
し、各区画内の空気と水を真空ポンプで吸引することに
より、スラリ−状止水材の含水比を低下させ、濃度を高
めて流動性を止めるようにした止水工法とすることもで
きる。Further, as another waterproofing method, the inside of a double-walled waterproofing sheet composed of a lower sheet and an upper sheet is divided into a number of compartments to form a waterproofing surface such as a pond or a waste disposal site. While laying, the inside of each section and the above-mentioned water-stop material supply source are connected to fill the slurry-like water-stop material, and the inside of each section and the above-mentioned vacuum pump are separately connected, and the inside of each section is connected. By suctioning the air and water with a vacuum pump, the water content of the slurry-like water-stopping material can be reduced and the concentration can be increased to stop the fluidity.
【００１１】下層シートと上層シートとからなる二重構
造の遮水シート内部を多数の区画に分割する方法として
は、下層シートと上層シートを分割すべき多数の区画の
周囲において圧着接合することによって多数の区画に分
割したり、二重構造の遮水シート内部に天地の空いた多
数の空隙構造からなる多隔壁資材を敷設することによっ
て多数の区画に分割することができる。A method of dividing the inside of a double-layer water-impervious sheet composed of a lower sheet and an upper sheet into a number of sections is performed by press-bonding the lower sheet and the upper sheet around a number of sections to be divided. It can be divided into a large number of sections by dividing into a large number of sections or laying a multi-wall material having a large number of open spaces inside the double-layered impermeable sheet.
【００１２】多数に分割された各々の区画内には、多隔
壁資材、砕石、レンガ、ブロック、ブロック状発泡プラ
スチック品等の充填材を充填することが望ましい。充填
材としては熱可塑性プラスチック又はアルミ板、ステン
レス板、鉄板等を凹凸状、波板状、筒状等の立体状に成
形加工したものを任意の高さに積層して使用することも
できる。熱可塑性プラスチックとしては、アイオノマ
−、アミノポリアクリルアミド、イサブチレン無水マレ
イン酸コポリマ−、ＡＡＳ、ＡＥＳ、ＡＳ、ＡＢＡ、Ａ
ＣＳ、ＭＢＳ、エチレン塩化ビニルコポリマ−、高密度
ポリエチレン等が使用できる。It is desirable that each of the plurality of divided sections is filled with a filler such as multi-wall material, crushed stone, brick, block, block-shaped foamed plastic article, or the like. As the filler, a thermoplastic resin or an aluminum plate, a stainless steel plate, an iron plate, or the like, which is formed into a three-dimensional shape such as an uneven shape, a corrugated plate, or a tubular shape, and laminated at an arbitrary height can be used. Examples of the thermoplastic plastics include ionomer, aminopolyacrylamide, isatobutylene maleic anhydride copolymer, AAS, AES, AS, ABA, A
CS, MBS, ethylene vinyl chloride copolymer, high density polyethylene and the like can be used.
【００１３】止水材としては、モンモリロナイト属のベ
ントナイト、バイデライト、ノントロナイト、サポナイ
ト、ヘクトライトやホルマイト属のアタパルジャイト、
セピオライト、バ−ミキュライト、イライト、カオリン
ナイト、ハロイサイト、ギブサイト、ヘマタイト、アロ
フェン、イモゴライト、雲母粘土鉱物、合成ベントナイ
ト、ゼオライト、タルク、緑泥岩、カルサイト、クロラ
イトなどの粘土鉱物の天然品や合成品又は吸水性樹脂を
用いることができる。Examples of water-stopping materials include bentonite, beidellite, nontronite, saponite, hectorite and holmite attapulgite of the genus montmorillonite,
Natural and synthetic clay minerals such as sepiolite, vermiculite, illite, kaolinite, halloysite, gibbsite, hematite, allophane, imogolite, mica clay mineral, synthetic bentonite, zeolite, talc, chlorite, calcite, and chlorite Alternatively, a water-absorbing resin can be used.
【００１４】水１００部に対して止水材または止水材混
合物を３部から５００部添加混合し、透水係数１×１０
-5から１０-8の不透水性のスラリ−状とした止水材は、
本発明の止水材として好ましく使用することができる。To 100 parts of water, 3 to 500 parts of a water-stopping material or a mixture of water-stopping materials are added and mixed, and a water permeability of 1 × 10
-5 to 10 -8 impervious slurry-shaped waterproof material is
It can be preferably used as the water stopping material of the present invention.
【００１５】プロピレングリコ−ル、ポリエチレングリ
コ−ルを止水材または止水材混合物に対し、０．１部か
ら５００部添加混合することによって凍結防止剤として
使用したり、水に代わる止水材の分散材として使用する
ことができる。A propylene glycol or polyethylene glycol is used as a deicing agent by adding 0.1 to 500 parts to a water-stopping material or a water-stopping material mixture and mixing the water-stopping material or the water-stopping material mixture. Can be used as a dispersant.
【００１６】止水材に対する混合材としては、分散材、
ＰＨ調整材、防腐材、凍結防止材などを適宜使用するこ
とができ、各々水１００部に対して０．０１部から５０
部の範囲で、単独または混合して添加する。As a mixture for the water-stopping material, dispersants,
A pH adjusting material, a preservative, an antifreezing material, and the like can be appropriately used.
Parts or in a mixture.
【００１７】止水材の粘性を下げて流動性を持たせる目
的からは、ポリカルボン酸系化合物、トリポリリン酸系
化合物、スルホンソ−ダ、フミン酸ソ−ダ、リグニンス
ルホン酸ソ−ダ系化合物、フミン酸ソ−ダの複合系化合
物、ヘキサミタリン酸ソ−ダ、重炭酸ソ−ダ、硝酸ナト
リウム、塩化ナトリウム、硫酸ナトリウム、炭酸ナトリ
ウム、硝酸アンモニウム、塩化アンモニウム、硫酸アン
モニウム、炭酸アンモニウム、硝酸カルシウム、塩化カ
ルシウム、硫酸カルシウム、炭酸カルシウム、硝酸バリ
ウム、塩化バリウム、硫酸バリウム、炭酸バリウム、又
はポリカルボン酸、ポリアクリル酸塩、ジイソブチレン
とマレン酸との共重合物塩、ポリスチレンスルホン酸
塩、ナフタリレンススルホン酸塩のホルマリン縮合物、
リグニンスルホン酸、メラミンスルホン酸の単独又はこ
れらの任意の組み合わせを用いることができる。For the purpose of lowering the viscosity of the water-stopping material to make it flowable, polycarboxylic acid compounds, tripolyphosphoric acid compounds, sulfon soda, sodium humate, sodium lignin sulfonate compounds, Complex compound of sodium humate, sodium hexamitarate, sodium bicarbonate, sodium nitrate, sodium chloride, sodium sulfate, sodium carbonate, ammonium nitrate, ammonium chloride, ammonium sulfate, ammonium carbonate, calcium nitrate, calcium chloride , Calcium sulfate, calcium carbonate, barium nitrate, barium chloride, barium sulfate, barium carbonate, or polycarboxylic acid, polyacrylate, copolymer salt of diisobutylene and maleic acid, polystyrene sulfonate, naphthalene sulfonic acid Formalin condensate of salt,
Lignin sulfonic acid and melamine sulfonic acid can be used alone or in any combination thereof.
【００１８】ＰＨ調整材としては、炭酸ソ−ダ、炭酸ガ
ス、希硫酸、硫酸、苛性ソ−ダまたは重曹を上げること
ができ、防腐剤としては界面活性剤、有機アミン系化合
物を上げることができる。As the pH adjuster, soda carbonate, carbon dioxide, dilute sulfuric acid, sulfuric acid, caustic soda or sodium bicarbonate can be used. As the preservative, a surfactant and an organic amine compound can be used. it can.
【００１９】下層シート及び上層シートの材料として
は、綿、麻、ポリエチレン、ポリアミド、ポリプロピレ
ン、塩化ビニル、塩化ビニリデン、ナイロン、ポリエス
テル、ポリアクリル等の不織布又は織物、エチレンプム
ピレンジモノマ−の繊維複合シ−ト、ポリオレフィン系
エラストマ−の合成ゴムシ−ト又はポリ塩化ビニルの繊
維複合シ−ト、高密度ポリエチレンシ−ト、低密度ポリ
エチレンシ−ト、塩素化ポリエチレンシ−ト、ポリウレ
タンシ−ト、エチレン酢酸ビニル共重合体シ−ト等の合
成樹脂系などが採用できる。As the material of the lower layer sheet and the upper layer sheet, nonwoven fabric or woven fabric of cotton, hemp, polyethylene, polyamide, polypropylene, vinyl chloride, vinylidene chloride, nylon, polyester, polyacryl, etc., fiber composite of ethylene pumpyrene dimer Sheet, synthetic rubber sheet of polyolefin-based elastomer or fiber composite sheet of polyvinyl chloride, high-density polyethylene sheet, low-density polyethylene sheet, chlorinated polyethylene sheet, polyurethane sheet, A synthetic resin such as an ethylene vinyl acetate copolymer sheet can be used.
【００２０】なお、遮水シートを用いた止水工法に用い
る止水材としては、ベントナイトが最適である。ベント
ナイトは水和すると膨潤して極めて不透水性の高い材質
となる性質をもち、このため軟質の合成樹脂系、ゴム系
遮水シートと異なり、遮水シートが破損しても、ベント
ナイトが膨潤し空隙を埋め防水機能を持つことが知られ
ている。またベントナイトは水を吸水し膨張した時の液
性限界が高いため、ベントナイトの上の保護層の荷重、
貯水している水の重量等積載荷重により、破断した穴を
ベントナイトが流動化し、塞ぎ、自己防水層復元機能を
もつことが知られている。しかしベントナイトは上下か
ら又は左右両サイドからコンクリ−ト又は土で拘束（固
定）された中で、はじめて防水機能、自己防水層復元機
能を発揮し、ベントナイトの下の基盤が空隙の大きい砕
石、石、砂層があると、ベントナイトが水によって長期
的に渡って希釈（溶解）して流亡し、ベントナイトの層
がなくなり、防水機能を発揮しなくなる危険がある。こ
の発明では、ベントナイトをスラリ−又は泥水化するこ
とによりそのスラリ−又は泥水化したベントナイトスラ
リ−又はベントナイト泥水を高低差の圧力又はポンプ圧
によって遮水シートの各区画内に供給することで防水機
能を常に持たせているものである。Bentonite is most suitable as a water-stopping material used in a water-stopping method using a water-blocking sheet. Bentonite swells when hydrated and becomes a very water-impermeable material.Thus, unlike soft synthetic resin-based or rubber-based water-impervious sheets, bentonite swells even if the water-impervious sheet is damaged. It is known to fill gaps and have a waterproof function. In addition, since bentonite has a high liquidity limit when expanded by absorbing water, the load of the protective layer on the bentonite,
It is known that bentonite fluidizes and closes a broken hole due to a load such as the weight of water stored therein, and has a self-waterproofing layer restoration function. However, bentonite only exhibits a waterproofing function and a self-watering layer restoring function while it is restrained (fixed) with concrete or soil from the top and bottom or from both left and right sides. When there is a sand layer, bentonite is diluted (dissolved) with water for a long period of time and runs off, and there is a risk that the bentonite layer disappears and the waterproof function is not exhibited. According to the present invention, the bentonite is converted into a slurry or muddy water to supply the slurry or muddy bentonite slurry or bentonite muddy water to each section of the impermeable sheet by a pressure difference or a pump pressure. Is always kept.
【００２１】ベントナイトは他の粘土粒子を分散させる
ことは周知の事実であり、ベントナイトの中のナトリウ
ムイオンを携えたモンモリロナイトが他の粘土鉱物粒
子、たとえばカオリナイト粒子などに吸着することによ
り、静電気的反発力（電気２重層の重なりによる反発
力）が増大し、分散、再配向して沈着し透水性を抑制す
ることが知られている。これらベントナイトが持つ機能
によりベントナイト等の泥水又はスラリ−状の止水材が
浸透した地盤は不透水化し、ベントナイト等の泥水又は
スラリ−状の止水材は土粒子に付着し薄くて強い泥膜
（マッドケーキ）を作り、泥膜を形成することにより止
水壁を作り、止水材自身の流亡を自ら止め止水材の垂れ
流しを防止するものである。It is a well-known fact that bentonite disperses other clay particles, and the montmorillonite carrying sodium ions in the bentonite adsorbs to other clay mineral particles, such as kaolinite particles, thereby causing electrostatic discharge. It is known that the repulsive force (repulsive force due to the overlap of the electric double layers) increases, disperses, reorients, deposits, and suppresses water permeability. Due to the functions of the bentonite, the ground impregnated with muddy water such as bentonite or slurry-like waterproofing material becomes impermeable, and the muddy water or slurry-like waterproofing material such as bentonite adheres to soil particles and is thin and strong muddy film. (Mud cake) and a mud film are formed to create a water-stop wall, which stops the water-stopping material itself from flowing and prevents the water-stopping material from dripping.
【００２２】[0022]
【発明の実施の形態】以下、この発明の実施の形態につ
いて図面を用いて詳細に説明する。Embodiments of the present invention will be described below in detail with reference to the drawings.
【００２３】図１は、この発明にかかる遮水シートの破
損部検出方法及び止水方法を採用しつつ底面全域に遮水
シートを敷設した池または廃棄物処分場の一例を示す略
示断面図である。すなわち、池または廃棄物処分場は、
例えば山間部等における広大な敷地を凹状に掘削形成し
たもので、廃棄物が投入される凹部の底面をあらかじめ
整地転圧して防水基盤１となし、その上に、遮水シート
２を敷設し、保護層３を積層し、しかる後にて廃棄物を
投棄して埋め立てて行くものである。FIG. 1 is a schematic cross-sectional view showing an example of a pond or a waste disposal site in which a water-impervious sheet is laid on the entire bottom surface while employing the method for detecting a broken portion of a water-impervious sheet and the method for stopping water according to the present invention. It is. That is, the pond or waste disposal site
For example, a large site in a mountainous area or the like is formed by excavation in a concave shape, and the bottom surface of the concave portion into which the waste is to be injected is subjected to leveling and compaction in advance to form a waterproof base 1, on which a waterproof sheet 2 is laid. The protective layer 3 is laminated, and after that, the waste is dumped and landfilled.
【００２４】遮水シート２は下層シート２ａと上層シー
ト２ｂとからなる二重構造をしており、内部を多数の区
画に分割して各々の区画内と地上の止水材供給源とを連
結してスラリー状の止水材を充填して防水層４を形成し
ている。地上の止水材供給源には、泥水タンク５、流量
計６、ポンプ７、電磁弁８、液面計９などが設置され、
各々の区画内とは連通管１０を介して連結される。この
連通管は、各区画内においては、有孔プラスチック管等
の可撓性有孔管とし、区画内全体にスラリー状の止水材
が充填されるようにする。また、各区画内には砕石、レ
ンガ、ブロック、ブロック状発泡プラスチック品等の充
填材１１を充填するか、あるいは熱可塑性プラスチック
又はアルミ板、ステンレス板、鉄板等を凹凸状、波板
状、筒状等の立体状に成形加工した充填材１２を敷設す
る。The water impermeable sheet 2 has a double structure consisting of a lower layer sheet 2a and an upper layer sheet 2b. The interior is divided into a number of sections, and each section is connected to a water stopping material supply source on the ground. Then, the waterproof layer 4 is formed by filling the slurry-like water stopping material. A muddy water tank 5, a flow meter 6, a pump 7, a solenoid valve 8, a liquid level meter 9, and the like are installed at the ground-side water-stopping material supply source.
The inside of each section is connected via a communication pipe 10. The communication pipe is a flexible perforated pipe such as a perforated plastic pipe in each section, and the entire section is filled with a slurry water-stopping material. In addition, each section is filled with a filler 11 such as crushed stone, brick, block, or block-shaped foamed plastic, or a thermoplastic or aluminum plate, a stainless plate, an iron plate, or the like is formed into an uneven shape, a corrugated plate, or a tube. The filler 12 formed into a three-dimensional shape such as a shape is laid.
【００２５】下層シート及び上層シートは、例えば軟質
の合成樹脂あるいはゴム系のシート材料で製作されるも
のであるが、一枚ものとして広大な廃棄物処分場の全底
面領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、施工に適した所定の大きさの単位シ−ト
を、例えば溶着や接着剤を介した圧着により、その端部
を接合部として互いに重ね合わせて接合し、廃棄物処分
場の底面を覆い得る大きさに一体化するものとする。The lower layer sheet and the upper layer sheet are made of, for example, a soft synthetic resin or a rubber-based sheet material. However, it is not possible to cover the entire bottom surface area of a vast waste disposal site as a single sheet. Because of the difficulty in construction, unit sheets of a predetermined size suitable for construction are overlapped and joined at the work site, for example, by welding or crimping via an adhesive, with the ends thereof as joints. And a size that can cover the bottom of the waste disposal site.
【００２６】これらの施工が終われば、あらかじめ地上
部にてスラリー状の止水材、例えばベントナイトスラリ
−又はベントナイト泥水をミキサ−で作液し、地上部に
設置した泥水タンク５に貯蔵する。次に、ポンプ７にて
あらかじめ計算された空隙量に対して、流量計６にてベ
ントナイトスラリ−又はベントナイト泥水の流量を測定
しながら充填を開始する。所定の量になった時点で電磁
弁８を閉める。この時点で、遮水シート２に破損箇所が
あった場合は、ベントナイトスラリ−又はベントナイト
泥水が流出するため、直ちに目視により確認がなされ修
復をおこなう。すべてのシ−トの接合部の修復が終り、
または破損が無いことが確認がなされた後、遮水シ−ト
２上部に保護層３を積層し、この後電磁弁８を解放し、
漏水検知を開始する。漏水の検知はベントナイトスラリ
−又はベントナイト泥水の液面の変動を液面計９によっ
て測定することによってできる。液面計９にはベントナ
イトスラリ−又はベントナイト泥水が空気と接触し乾燥
し流動化を損なわないようにオイル等で封印しておくの
が好ましい。また微量な漏水を検知するために液面計の
管径を細くする。このオイル等で封印の行われた液面差
を毎日又は決められた日に目視計測することにより漏水
の発生を検知する。またレベルセンサ−を設置しておけ
ば自動的に警告を発し漏水を知らせることができる。あ
る一定以上の漏水が発生した場合、レベルセンサ−によ
って検知してベントナイト泥水タンク９に接続された電
磁弁を解放することにより、ベントナイトスラリ−又は
ベントナイト泥水の補給を開始することができる。When these constructions are completed, a slurry-like water-stopping material, for example, a bentonite slurry or a bentonite muddy water is prepared by a mixer in the above-ground portion and stored in a mud tank 5 installed in the above-ground portion. Next, the filling is started while measuring the flow rate of the bentonite slurry or the bentonite mud with the flow meter 6 with respect to the void amount calculated in advance by the pump 7. When the predetermined amount is reached, the solenoid valve 8 is closed. At this point, if there is a broken portion in the impermeable sheet 2, since the bentonite slurry or the bentonite mud flows out, it is immediately visually confirmed and repaired. Repair of the joints of all sheets is over,
Alternatively, after it is confirmed that there is no damage, the protective layer 3 is laminated on the water-impervious sheet 2 and then the solenoid valve 8 is released.
Start leak detection. Water leakage can be detected by measuring the fluctuation of the liquid level of the bentonite slurry or the bentonite mud with the liquid level meter 9. It is preferable to seal the liquid level meter 9 with oil or the like so that the bentonite slurry or the bentonite muddy water contacts the air and dries to prevent fluidization. In addition, the diameter of the liquid level gauge is reduced in order to detect a small amount of water leakage. The occurrence of water leakage is detected by visually measuring the liquid level difference sealed with the oil or the like every day or on a predetermined day. If a level sensor is installed, a warning can be automatically issued to notify the leakage. When a certain level or more of water leaks is detected by the level sensor and the solenoid valve connected to the bentonite muddy water tank 9 is opened, the replenishment of bentonite slurry or bentonite muddy water can be started.
【００２７】なお、ポンプ、電磁弁等を使用せず、地上
部との高低差に圧力を利用してスラリー状の止水材を遮
水シートの各区画内に充填・補給することもできる。It is also possible to fill and replenish the water-blocking material in the form of slurry in each section of the impermeable sheet by utilizing the pressure at a height difference from the ground without using a pump, a solenoid valve or the like.
【００２８】このように遮水シートを区画分割して、各
区画内にスラリー状の止水材を地上の止水材供給源と連
結して充填しておけば、遮水シートの破損によって生じ
る止水材の漏水を止水材供給源における止水材のレベル
変化により検知可能であり、多数の区画に分割されるこ
とにより破損箇所を容易に特定することができる。ま
た、常に充填・補給可能としておけば、遮水シートの破
損時、止水材が遮水シートまたは地盤に浸透して止水層
を形成するので、廃棄物処分場からの汚水の漏出はもち
ろん、止水材自身の流亡も阻止され止水材の垂れ流しも
防止できる。If the water-blocking sheet is divided into sections as described above and each section is filled with a slurry-like water-blocking material in connection with a groundwater-blocking material supply source, the water-blocking sheet is damaged. Leakage of the water-stopping material can be detected by a change in the level of the water-stopping material at the water-stopping material supply source, and a broken portion can be easily specified by dividing the water-stopping material into a number of sections. Also, if it is always possible to fill and replenish, if the impermeable sheet breaks, the impermeable material will penetrate into the impermeable sheet or the ground and form an impermeable layer, so of course the leakage of wastewater from the waste disposal site In addition, it is possible to prevent the water-stopping material itself from flowing out and to prevent the water-stopping material from flowing down.
【００２９】図２に示した例は、スラリー状止水材の含
水比を低下させ得るようにした施工例で、スラリー状止
水材例えばベントナイトスラリ−又はベントナイト泥水
の逸泥が長期化される場合は、あらかじめ別途各区画内
と地上の真空ポンプ１３とを連結して敷設した通気管１
４を介して各区画内の空気及び水を吸引することによっ
て、ベントナイトスラリ−又はベントナイト泥水に含ま
れる含水比を低下させベントナイトの流動化を止めるよ
うにしたものである。通気管１４はベントナイトスラリ
−又はベントナイト泥水自体を吸引しないように、不織
布、濾紙、網、等を介在させることが好ましい。The example shown in FIG. 2 is an application example in which the water content of the slurry-like water-stopping material can be reduced, and the slurry-like water-stopping material such as bentonite slurry or bentonite muddy water is prolonged. In this case, the ventilation pipe 1 previously connected and laid separately in each section and the vacuum pump 13 on the ground is used.
By sucking air and water in each section through 4, the water content ratio of the bentonite slurry or the bentonite muddy water is reduced, and the fluidization of the bentonite is stopped. The vent pipe 14 is preferably provided with a nonwoven fabric, a filter paper, a net, or the like so as not to suck the bentonite slurry or the bentonite mud itself.
【００３０】また通気管１４を通して炭酸ガス等を吹き
込みベントナイトスラリ−又はベントナイト泥水を凝集
させてから、再度真空ポンプにて通気管内部の空気を吸
引しベントナイトスラリ−又はベントナイト泥水に含ま
れる含水比を低下させベントナイトの流動化を止めるこ
ともできる。Carbon dioxide gas or the like is blown through the vent pipe 14 to condense the bentonite slurry or bentonite mud, and then the air inside the vent pipe is sucked again by a vacuum pump to determine the water content ratio in the bentonite slurry or bentonite mud. It can also lower the fluidization of bentonite.
【００３１】図３ないし図８は、遮水シートの各区画内
に充填される充填材の例と、区画を構成する隔壁例を示
したもので、図３では各区画内において充填された砕
石、レンガ、ブロック、ブロック状発泡プラスチック品
等の充填材１１を示している。また、図４では隔壁１５
によって区画された内部に砕石、レンガ、ブロック、ブ
ロック状発泡プラスチック品等の充填材１１が充填され
た例を示している。図５では隔壁１５によって区画され
た内部に熱可塑性プラスチック又はアルミ板、ステンレ
ス板、鉄板等を凹凸状に成形した充填材１２が敷設され
ている。また、図６では隔壁１５によって区画された内
部に熱可塑性プラスチック又はアルミ板、ステンレス
板、鉄板等を波板状に成形した充填材１２が敷設されて
いる。さらに図７では、隔壁１５によって区画された内
部に熱可塑性プラスチック又はアルミ板、ステンレス
板、鉄板等によって成形した多隔壁資材が充填材１２と
して敷設されている。また、図８では熱可塑性プラスチ
ック又はアルミ板、ステンレス板、鉄板等を筒状に成形
した充填材１２が敷設されている。FIG. 3 to FIG. 8 show examples of the filler filled in each section of the impermeable sheet and examples of the partition walls constituting the section. FIG. 3 shows the crushed stone filled in each section. , A brick, a block, a filler material 11 such as a block-shaped foamed plastic product. Also, in FIG.
An example in which a filler 11 such as a crushed stone, a brick, a block, or a block-shaped foamed plastic product is filled in an interior section defined by. In FIG. 5, a filler 12 formed by forming a thermoplastic resin or an aluminum plate, a stainless steel plate, an iron plate, or the like into an irregular shape is laid inside the partition defined by the partition wall 15. In FIG. 6, a filler 12 formed by forming a thermoplastic plastic or an aluminum plate, a stainless steel plate, an iron plate, or the like into a corrugated plate is laid inside the partition defined by the partition wall 15. Further, in FIG. 7, a multi-partition material formed of a thermoplastic plastic or an aluminum plate, a stainless plate, an iron plate, or the like is laid as a filler 12 inside the partition defined by the partition 15. In FIG. 8, a filler 12 formed by molding a thermoplastic or aluminum plate, a stainless plate, an iron plate or the like into a cylindrical shape is laid.
【００３２】[0032]
【発明の効果】以上詳細に説明したように、この発明に
よる池又は廃棄物処分場等の止水施工面に敷設される遮
水シートの破損部検出方法によれば、遮水シートの破損
個所から止水材が流出した量により漏水が起きた現象を
地上部で定量的に見ることができ、また、止水材は多数
の区画に分割された中に充填されているため、区画され
ることにより破損箇所を容易に特定することができる。As described above in detail, according to the method for detecting a damaged portion of a water-impervious sheet laid on a water-stopping work surface such as a pond or a waste disposal site according to the present invention, The phenomenon of water leakage caused by the amount of water-stopping material leaked from the ground can be seen quantitatively on the ground, and the water-stopping material is divided into many compartments, so it is divided This makes it possible to easily identify a damaged portion.
【００３３】また、各区画における破損箇所はスラリー
状止水材によって補修されるので、廃棄物処分場におけ
る汚水の漏出を防止することができ、また、止水材自体
の漏出も防止することができる。Further, since the damaged portion in each section is repaired with the slurry-like water-stopping material, it is possible to prevent the leakage of sewage at the waste disposal site, and also to prevent the water-stopping material itself from leaking. it can.
【００３４】従って、この発明に係る遮水シートの破損
部検出方法及び遮水シートを用いた止水工法を利用すれ
ば、現場において簡易、迅速かつ容易に検知作業を行な
うことができるとともに、欠損箇所を精度良く瞬時に検
知、特定することができ破損状態を検知後すなわち汚染
水が外部に流出する前に破損箇所を止水することがで
き、さらに同一区間が再度漏水しても何度も破損箇所を
検知することができる。また、補修に要した分のベント
ナイト等の泥水又はスラリ−状の止水材は、地上部で任
意の時に作液しかつ補給でき、またあらかじめタンク等
にて貯蔵することもできる。従って廃棄物処分場におけ
る汚水の漏出管理に用いた場合、廃棄物処分場の安全性
及び信頼性を長期的に渡って向上することができる遮水
シートの破損部検出方法を及び遮水シートを用いた止水
工法を提供し得たのである。Therefore, if the method for detecting a damaged portion of a water-impervious sheet and the water-stopping method using the water-impervious sheet according to the present invention are used, the detection operation can be performed simply, quickly and easily on site, and Accurate and instantaneous detection and identification of the location, after detecting the damage status, that is, before the contaminated water flows out, the damaged portion can be stopped, and even if the same section leaks again, it will be many times Damaged parts can be detected. Further, muddy water such as bentonite or a slurry-like water-stopping material required for the repair can be prepared and replenished at any time on the ground, and can be stored in a tank or the like in advance. Therefore, when used for wastewater leakage management at a waste disposal site, a method for detecting a damaged portion of the water-impervious sheet and a water-impervious sheet that can improve the safety and reliability of the waste disposal site over a long period of time It was possible to provide the waterproofing method used.
【図１】 この発明に係る遮水シートの破損部検出方法
及び止水方法を廃棄物処分場に採用した一例を示す概略
断面図FIG. 1 is a schematic sectional view showing an example in which a method for detecting a damaged portion of a seepage control sheet and a method for stopping water according to the present invention are employed in a waste disposal site.
【図２】 この発明に係る遮水シートの破損部検出方法
及び止水方法の他例を示す概略断面図FIG. 2 is a schematic cross-sectional view showing another example of a method for detecting a damaged portion of a water-impervious sheet and a method for stopping water according to the present invention.
【図３】 この発明で使用する遮水シートの内部構造例
の一例を示す。FIG. 3 shows an example of the internal structure of a water-blocking sheet used in the present invention.
【図４】 この発明で使用する遮水シートの内部構造例
の他例を示す。FIG. 4 shows another example of the internal structure of the impermeable sheet used in the present invention.
【図５】 同遮水シートの内部構造例の他の例を示す。FIG. 5 shows another example of the internal structure of the impermeable sheet.
【図６】 同遮水シートの内部構造例のさらに他の例を
示す。FIG. 6 shows still another example of the internal structure example of the water impermeable sheet.
【図７】 同遮水シートの内部構造例のさらにまた他の
例を示す。FIG. 7 shows still another example of the internal structure of the water-impervious sheet.
【図８】 同遮水シートの内部構造例のまたさらに他の
例を示す。FIG. 8 shows still another example of the internal structure of the water-impervious sheet.
１…遮水シート ２ａ…下層シート ２ｂ…上層
シート ５…泥水タンク １０…連通管 １１、１２
…充填材 １３…真空ポンプ １４…通気管DESCRIPTION OF SYMBOLS 1 ... Waterproof sheet 2a ... Lower layer sheet 2b ... Upper layer sheet 5 ... Muddy water tank 10 ... Communication pipe 11, 12
... Filler 13 ... Vacuum pump 14 ... Vent pipe
───────────────────────────────────────────────────── フロントページの続き (71)出願人 000140292 株式会社奥村組 大阪府大阪市阿倍野区松崎町２丁目２番２ 号 (71)出願人 591054233 株式会社豊順洋行 大阪府大阪市西区江戸堀１丁目９番１号 (72)発明者 水野 克己 兵庫県宝塚市川面５丁目11番３号 (72)発明者 土岐 晃生 大阪府岸和田市上野町東13−10 (72)発明者 成島 誠一 神奈川県鎌倉市手広1558−１ (72)発明者 高橋 修 東京都中央区京橋１丁目７−１ 戸田建設 株式会社内 (72)発明者 川口 光雄 大阪市阿倍野区松崎町２丁目２番２号 株 式会社奥村組内 (72)発明者 栗本 朋樹 東京都世田谷区給田３−27−20−402 ──────────────────────────────────────────────────続 き Continuation of the front page (71) Applicant 000140292 Okumura Gumi Co., Ltd. 2-2-2 Matsuzaki-cho, Abeno-ku, Osaka-shi, Osaka (71) Applicant 591054233 Toyojun Yoko Co., Ltd. 1-9 Edobori, Nishi-ku, Osaka-shi, Osaka No. 1 (72) Katsumi Mizuno 5-11-3 Kawamo, Takarazuka-shi, Hyogo (72) Inventor Akio Toki 13-10 Higashi, Ueno-cho, Kishiwada-shi, Osaka (72) Inventor Seiichi Narushima 1558 Tehiro, Kamakura-shi, Kanagawa -1 (72) Inventor Osamu Takahashi 1-7-1 Kyobashi, Chuo-ku, Tokyo Toda Construction Co., Ltd. (72) Mitsuo Kawaguchi 2-2-2 Matsuzaki-cho, Abeno-ku, Osaka-shi Okumura Gumi (72) Inventor Tomoki Kurimoto 3-27-20-402 Shigeta, Setagaya-ku, Tokyo
Claims (19)
構造の遮水シート内部を多数の区画に分割して池又は廃
棄物処分場等の止水施工面に敷設するとともに、各々の
区画内と地上の止水材供給源とを連結してスラリー状の
止水材を充填し、遮水シートの破損によって生じる止水
材の漏水を止水材供給源における止水材のレベル変化に
より検知可能としたことを特徴とする遮水シートの破損
部検出方法。1. The inside of a double-layered impermeable sheet consisting of a lower sheet and an upper sheet is divided into a number of sections and laid on a water-stopping surface such as a pond or a waste disposal site. Is connected to the water-supplying material supply source on the ground and filled with the slurry-like water-stopping material, and the leakage of the water-stopping material caused by breakage of the impermeable sheet is detected by the level change of the water-stopping material at the water-stopping material source A method for detecting a damaged portion of a water-impervious sheet, which is made possible.
構造の遮水シート内部を多数の区画に分割して池又は廃
棄物処分場等の止水施工面に敷設するとともに、各々の
区画内と地上の止水材供給源とを連結してスラリー状の
止水材を充填し、地上部との高低差による圧力またはポ
ンプなどの強制加圧力により常に各区画内に止水材を補
給可能となし、遮水シートの破損時、止水材が遮水シー
トまたは地盤に浸透して止水層を形成するようにした遮
水シートを用いた止水工法。2. The inside of a double-layered impermeable sheet composed of a lower sheet and an upper sheet is divided into a number of sections and laid on a water-stopping surface such as a pond or a waste disposal site. Can be connected to the water supply material on the ground and filled with the water-stop material in the form of slurry, and the water-stop material can always be replenished in each section by the pressure due to the height difference from the ground or the forced pressure of the pump etc. A water-blocking method using a water-blocking sheet in which the water-blocking material penetrates into the water-blocking sheet or the ground to form a water-blocking layer when the water-blocking sheet is damaged.
構造の遮水シート内部を多数の区画に分割して池又は廃
棄物処分場等の止水施工面に敷設するとともに、各々の
区画内と地上の止水材供給源とを連結してスラリー状の
止水材を充填するとともに、別途各々の区画内と地上の
真空ポンプとを連結し、各区画内の空気と水を真空ポン
プで吸引することにより、スラリ−状止水材の含水比を
低下させ、濃度を高めて流動性を止めることを特徴とす
る遮水シートを用いた止水工法。3. The interior of a double-layered impermeable sheet composed of a lower layer sheet and an upper layer sheet is divided into a number of sections and laid on a water-stopping work surface such as a pond or a waste disposal site. And a ground water-supplying material supply source to fill the slurry-like water-stopping material, and separately connect each section to the ground vacuum pump, and use a vacuum pump to air and water in each section. A water-stopping method using a water-blocking sheet, characterized in that the water content of the slurry-like water-stopping material is reduced by suction, and the fluidity is stopped by increasing the concentration.
数の区画の周囲において圧着接合することによって遮水
シート内部を多数の区画に分割した請求項１記載の遮水
シートの破損部検出方法。4. The method according to claim 1, wherein the inside of the impermeable sheet is divided into a plurality of sections by press-bonding the lower sheet and the upper sheet around a plurality of sections to be divided.
数の区画の周囲において圧着接合することによって遮水
シート内部を多数の区画に分割した請求項２または３記
載の止水工法。5. The waterproofing method according to claim 2, wherein the inside of the impermeable sheet is divided into a number of sections by press-bonding the lower sheet and the upper sheet around a plurality of sections to be divided.
構造の遮水シート内部に天地の空いた多数の空隙構造か
らなる多隔壁資材を敷設し、遮水シート内部を多数の区
画に分割した請求項１記載の遮水シートの破損部検出方
法。6. A multi-wall material having a large number of open spaces is laid inside a double-layer water-impermeable sheet comprising a lower layer sheet and an upper layer sheet, and the interior of the water-impermeable sheet is divided into a number of sections. The method for detecting a damaged portion of a water impermeable sheet according to claim 1.
構造の遮水シート内部に天地の空いた多数の空隙構造か
らなる多隔壁資材を敷設し、遮水シート内部を多数の区
画に分割した請求項２または３記載の止水工法。7. A multi-wall material having a large number of open and vacant structures is laid inside a double-layer water-blocking sheet composed of a lower layer sheet and an upper layer sheet, and the inside of the water-blocking sheet is divided into a number of sections. The water stopping method according to claim 2 or 3.
資材、砕石、レンガ、ブロック、ブロック状発泡プラス
チック品等の充填材を充填した請求項１記載の遮水シー
トの破損部検出方法。8. The method according to claim 1, wherein each of the plurality of divided sections is filled with a filler material such as multi-wall material, crushed stone, brick, block, or block-shaped foamed plastic. .
資材、砕石、レンガ、ブロック、ブロック状発泡プラス
チック品等の充填材を充填した請求項２または３記載の
止水工法。9. The waterproofing method according to claim 2, wherein each of the plurality of divided sections is filled with a filler such as multi-wall material, crushed stone, brick, block, block-shaped foamed plastic article, or the like.
て、熱可塑性プラスチック又はアルミ板、ステンレス
板、鉄板等を凹凸状、波板状、筒状等の立体状に成形加
工した充填材を任意の高さに積層してなる請求項１記載
の遮水シートの破損部検出方法。10. In each of the plurality of divided sections, a filler obtained by forming a thermoplastic resin or an aluminum plate, a stainless plate, an iron plate, or the like into a three-dimensional shape such as an uneven shape, a corrugated plate shape, or a tubular shape is optionally used. The method for detecting a damaged portion of a water-impervious sheet according to claim 1, wherein the damaged portion is laminated at a height.
て、熱可塑性プラスチック又はアルミ板、ステンレス
板、鉄板等を凹凸状、波板状、筒状等の立体状に成形加
工した充填材を任意の高さに積層してなる請求項２また
は３記載の止水工法。11. In each of the plurality of divided sections, a filler obtained by forming a thermoplastic resin or an aluminum plate, a stainless plate, an iron plate, or the like into a three-dimensional shape such as an uneven shape, a corrugated plate, or a cylindrical shape is optionally used. The method according to claim 2 or 3, which is laminated at a height.
トナイト、バイデライト、ノントロナイト、サポナイ
ト、ヘクトライトやホルマイト属のアタパルジャイト、
セピオライト、バ−ミキュライト、イライト、カオリン
ナイト、ハロイサイト、ギブサイト、ヘマタイト、アロ
フェン、イモゴライト、雲母粘土鉱物、合成ベントナイ
ト、ゼオライト、タルク、緑泥岩、カルサイト、クロラ
イトなどの粘土鉱物の天然品や合成品又は吸水性樹脂で
ある請求項１記載の遮水シートの破損部検出方法。12. The water-stopping material is a bentonite, beidellite, nontronite, saponite, hectorite or holmite attapulgite of the genus montmorillonite,
Natural and synthetic clay minerals such as sepiolite, vermiculite, illite, kaolinite, halloysite, gibbsite, hematite, allophane, imogolite, mica clay mineral, synthetic bentonite, zeolite, talc, chlorite, calcite, and chlorite The method for detecting a damaged portion of a water-impervious sheet according to claim 1 or a water-absorbent resin.
トナイト、バイデライト、ノントロナイト、サポナイ
ト、ヘクトライトやホルマイト属のアタパルジャイト、
セピオライト、バ−ミキュライト、イライト、カオリン
ナイト、ハロイサイト、ギブサイト、ヘマタイト、アロ
フェン、イモゴライト、雲母粘土鉱物、合成ベントナイ
ト、ゼオライト、タルク、緑泥岩、カルサイト、クロラ
イトなどの粘土鉱物の天然品や合成品又は吸水性樹脂で
ある請求項２または３記載の止水工法。13. The water-stopping material is a bentonite, beidellite, nontronite, saponite, hectorite or holmite attapulgite of the genus montmorillonite,
Natural and synthetic clay minerals such as sepiolite, vermiculite, illite, kaolinite, halloysite, gibbsite, hematite, allophane, imogolite, mica clay mineral, synthetic bentonite, zeolite, talc, chlorite, calcite, and chlorite The method according to claim 2 or 3, wherein the method is a water-absorbing resin.
材混合物を３部から５００部添加混合し、透水係数１×
１０-5から１０-8の不透水性のスラリ−状とした止水材
を用いる請求項１記載の遮水シートの破損部検出方法。14. A water-stopping material or a water-stopping material mixture is added to and mixed with 100 parts of water in an amount of 3 to 500 parts and a water permeability of 1 ×.
2. The method for detecting a damaged portion of a water-impervious sheet according to claim 1, wherein a water-blocking material in the form of a water-impermeable slurry having a size of 10 < -5> to 10 <-8 > is used.
材混合物を３部から５００部添加混合し、透水係数１×
１０-5から１０-8の不透水性のスラリ−状とした止水材
を用いる請求項２または３記載の止水工法。15. A water-stopping material or a water-stopping material mixture is added to and mixed with 100 parts of water in an amount of 3 to 500 parts, and a water permeability of 1 ×.
4. The water stopping method according to claim 2, wherein a water stopping material in the form of an impervious slurry of 10 -5 to 10 -8 is used.
グリコ−ルを止水材または止水材混合物に対し、０．１
部から５００部添加混合した請求項１記載の遮水シート
の破損部検出方法。16. A propylene glycol or polyethylene glycol is added to a water-stopping material or a mixture of water-stopping materials in an amount of 0.1 to 0.1%.
The method for detecting a damaged portion of a water-impervious sheet according to claim 1, wherein 500 parts of the water-impermeable sheet are added and mixed.
グリコ−ルを止水材または止水材混合物に対し、０．１
部から５００部添加混合した請求項２または３記載の止
水工法。17. A propylene glycol or a polyethylene glycol is added to a water-stopping material or a mixture of water-stopping materials in an amount of 0.1 to 0.1%.
The water stopping method according to claim 2 or 3, wherein 500 parts by weight of the water stopping method are added and mixed.
重構造の遮水シートであって、該遮水シートを多数の区
画に分割し、かつ該分割した区画の周囲において前記下
層シートと前記上層シートとを圧着することにより多数
の袋体を形成した遮水シートを池又は廃棄物処分場等の
止水施工面に敷設するとともに、前記各袋体に接続した
連通管を介して袋体内にスラリ−状の止水材を充填する
ことにより、遮水シートの破損によって生じる止水材の
漏水を連通管を介して止水材のレベル変化により検知可
能としたことを特徴とする遮水シートの破損部検出方
法。18. A waterproof sheet having a double structure comprising a lower sheet and an upper sheet, wherein the waterproof sheet is divided into a number of sections, and the lower sheet and the upper layer are formed around the divided sections. The water-impervious sheet, which has formed a number of bags by crimping the sheets, is laid on the water-stopping work surface such as a pond or a waste disposal site, and is inserted into the bag through the communication pipe connected to each bag. A water-blocking sheet characterized by being able to detect leakage of the water-blocking material caused by breakage of the water-blocking sheet by a change in the level of the water-blocking material through a communication pipe by filling with a slurry-like water-blocking material. Method for detecting damaged parts.
重構造の遮水シートであって、該遮水シートを多数の区
画に分割し、かつ該分割した区画の周囲において前記下
層シートと前記上層シートとを圧着することにより多数
の袋体を形成した遮水シートを池又は廃棄物処分場等の
止水施工面に敷設するとともに、前記各袋体に接続した
連通管を介して袋体内にスラリ−状の止水材を充填する
とともに、遮水シートの破損による止水材の漏水時、地
上部との高低差による圧力または強制加圧力により常に
止水材を補給可能としたことを特徴とする遮水シートを
用いた止水工法。19. A water-blocking sheet having a double structure comprising a lower layer sheet and an upper layer sheet, wherein the water-blocking sheet is divided into a number of sections, and the lower layer sheet and the upper layer are formed around the divided sections. The water-impervious sheet, which has formed a number of bags by crimping the sheets, is laid on the water-stopping work surface such as a pond or a waste disposal site, and is inserted into the bag through the communication pipe connected to each bag. It is filled with a slurry-like water-stop material, and when water-stop material leaks due to breakage of the water-impervious sheet, the water-stop material can always be replenished by the pressure due to the height difference from the ground or the forced pressure. Waterproofing method using a waterproof sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28444596A JP3781490B2 (en) | 1996-10-25 | 1996-10-25 | Method for detecting damaged part of impermeable sheet and water stop method using impermeable sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28444596A JP3781490B2 (en) | 1996-10-25 | 1996-10-25 | Method for detecting damaged part of impermeable sheet and water stop method using impermeable sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10128268A true JPH10128268A (en) | 1998-05-19 |
| JP3781490B2 JP3781490B2 (en) | 2006-05-31 |
Family
ID=17678643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28444596A Expired - Lifetime JP3781490B2 (en) | 1996-10-25 | 1996-10-25 | Method for detecting damaged part of impermeable sheet and water stop method using impermeable sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3781490B2 (en) |
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|---|---|---|---|---|
| JP2000202390A (en) * | 1999-01-12 | 2000-07-25 | Takiron Co Ltd | Impermeable structure of waste disposal site |
| JP2000248528A (en) * | 1999-03-02 | 2000-09-12 | Kumagai Gumi Co Ltd | Water barrier formation equipment |
| JP2000296375A (en) * | 1999-04-14 | 2000-10-24 | Kyowa Yuka Kk | Purification and joining method of impermeable sheet |
| JP2001070906A (en) * | 1999-09-07 | 2001-03-21 | Geo-Research Institute | Self-healing waste disposal facility |
| JP2001070907A (en) * | 1999-09-07 | 2001-03-21 | Geo-Research Institute | Impermeable structure of waste disposal site |
| JP2001096250A (en) * | 1999-07-27 | 2001-04-10 | Kinjo Rubber Kk | Seepage control sheet and seepage control method for waste disposal sites |
| JP2001300461A (en) * | 2000-04-28 | 2001-10-30 | Asanuma Corp | Supply and drainage mechanism of waste disposal facility |
| JP2003053290A (en) * | 2001-08-10 | 2003-02-25 | Okumura Corp | Water barrier sheet and its construction method in waste disposal facility |
| JP2003062535A (en) * | 2001-08-28 | 2003-03-04 | Okumura Corp | Water barrier sheet and its construction method in waste disposal facility |
| JP2003279689A (en) * | 2002-01-18 | 2003-10-02 | Shimizu Corp | Bentonite high-density solid body of waste filler, manufacturing apparatus and manufacturing method thereof |
| JP2004195375A (en) * | 2002-12-19 | 2004-07-15 | Ohbayashi Corp | Water supply method in bentonite filled water barrier mat construction method |
| JP2005313105A (en) * | 2004-04-30 | 2005-11-10 | Taiyo Kogyo Co Ltd | Disposal site having circulation system for improving semi-aerobic state |
| JP2006501053A (en) * | 2002-09-30 | 2006-01-12 | アクアタン・（プロプライエタリー）・リミテッド | Geotechnical barrier |
| JP2006043639A (en) * | 2004-08-06 | 2006-02-16 | Okumura Corp | Water-blocking structure for waste disposal sites, etc. |
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1996
- 1996-10-25 JP JP28444596A patent/JP3781490B2/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000202390A (en) * | 1999-01-12 | 2000-07-25 | Takiron Co Ltd | Impermeable structure of waste disposal site |
| JP2000248528A (en) * | 1999-03-02 | 2000-09-12 | Kumagai Gumi Co Ltd | Water barrier formation equipment |
| JP2000296375A (en) * | 1999-04-14 | 2000-10-24 | Kyowa Yuka Kk | Purification and joining method of impermeable sheet |
| JP2001096250A (en) * | 1999-07-27 | 2001-04-10 | Kinjo Rubber Kk | Seepage control sheet and seepage control method for waste disposal sites |
| JP2001070906A (en) * | 1999-09-07 | 2001-03-21 | Geo-Research Institute | Self-healing waste disposal facility |
| JP2001070907A (en) * | 1999-09-07 | 2001-03-21 | Geo-Research Institute | Impermeable structure of waste disposal site |
| JP2001300461A (en) * | 2000-04-28 | 2001-10-30 | Asanuma Corp | Supply and drainage mechanism of waste disposal facility |
| JP2003053290A (en) * | 2001-08-10 | 2003-02-25 | Okumura Corp | Water barrier sheet and its construction method in waste disposal facility |
| JP2003062535A (en) * | 2001-08-28 | 2003-03-04 | Okumura Corp | Water barrier sheet and its construction method in waste disposal facility |
| JP2003279689A (en) * | 2002-01-18 | 2003-10-02 | Shimizu Corp | Bentonite high-density solid body of waste filler, manufacturing apparatus and manufacturing method thereof |
| JP2006501053A (en) * | 2002-09-30 | 2006-01-12 | アクアタン・（プロプライエタリー）・リミテッド | Geotechnical barrier |
| JP2004195375A (en) * | 2002-12-19 | 2004-07-15 | Ohbayashi Corp | Water supply method in bentonite filled water barrier mat construction method |
| JP2005313105A (en) * | 2004-04-30 | 2005-11-10 | Taiyo Kogyo Co Ltd | Disposal site having circulation system for improving semi-aerobic state |
| JP2006043639A (en) * | 2004-08-06 | 2006-02-16 | Okumura Corp | Water-blocking structure for waste disposal sites, etc. |
| JP2007247294A (en) * | 2006-03-16 | 2007-09-27 | Ohbayashi Corp | Coating method and coating structure for bottom sediment |
| JP2007330853A (en) * | 2006-06-12 | 2007-12-27 | Taiyo Kogyo Corp | Waste disposal site, impermeable structure, and construction method for building a waste disposal site |
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| Publication number | Publication date |
|---|---|
| JP3781490B2 (en) | 2006-05-31 |
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