JPH0663526A - Detecting method for damaged part of water barrier sheet, its water barrier sheet - Google Patents
Detecting method for damaged part of water barrier sheet, its water barrier sheetInfo
- Publication number
- JPH0663526A JPH0663526A JP4217734A JP21773492A JPH0663526A JP H0663526 A JPH0663526 A JP H0663526A JP 4217734 A JP4217734 A JP 4217734A JP 21773492 A JP21773492 A JP 21773492A JP H0663526 A JPH0663526 A JP H0663526A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- layer sheet
- lower layer
- pressure
- water
- 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
Landscapes
- Revetment (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、廃棄物処分場におけ
る遮水シートの破損箇所を特定するための破損部検出方
法及び破損箇所の特定及び補修が可能な遮水シートに関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damaged part detecting method for specifying a damaged part of a water blocking sheet in a waste disposal site, and a water blocking sheet capable of specifying and repairing the damaged part.
【０００２】[0002]
【従来の技術】産業廃棄物や一般廃棄物を投棄する埋立
型の廃棄物処分場では、該処分場から漏出する汚水が地
下浸透し、環境汚染を引き起こす事を防止するために、
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。かかる遮水工として、従来より、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。すなわち、軟質の遮水シートは、水の透過が殆ど
無いため他の材料に比較して遮水性の点で優れるととも
に、敷設施工が容易で且つ経済性に優れるという特質を
備えるものでる。2. Description of the Related Art In a landfill type waste disposal site for dumping industrial waste and general waste, in order to prevent sewage leaking from the disposal site from infiltrating underground and causing environmental pollution,
It is obligatory to carry out a seepage control work on the bottom of the disposal site. As such a water shield work, conventionally, a method of laying a soft synthetic resin-based or rubber-based water shield sheet has been adopted from the viewpoint of reliability, safety, workability, economical efficiency and the like. That is, since the soft water-permeable sheet has almost no water permeation, it is superior to other materials in terms of water impermeability, and is easy to lay and is economical.
【０００３】一方、近年、廃棄物処分場に敷設した遮水
シートが破れ、汚水が流出して周囲の環境を汚染すると
いう問題が生じている。そして、このような問題の対応
策として、遮水シートの２層張りを行ない１層目の遮水
シートが破れても他の層の遮水シートで汚水の漏出を防
止し、安全性を高める方法が考えられている。On the other hand, in recent years, there has been a problem that the water-blocking sheet laid in the waste disposal site is torn and sewage flows out to pollute the surrounding environment. Then, as a countermeasure against such a problem, two layers of water-impermeable sheets are installed, and even if the first water-impermeable sheet is torn, the other water-impermeable sheets prevent leakage of sewage and enhance safety. A method is being considered.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、かかる
従来の遮水シートの２層張りによって安全性を高める方
法では、単に遮水シートを２枚重ねしてその強度を倍増
することにより安全率を高めたに過ぎず、廃棄物の埋め
立て後に生じたシートの破損箇所を特定することが不可
能で、また、当該破損箇所の補修を行なうことができな
いという課題がある。そして、かかる遮水シートの破損
箇所を特定しこれを補修する事ができれば、遮水性に優
れ、施工に有利な遮水シートを使用した廃棄物処分場の
安全性、信頼性を高めるうえで特に有益である。However, in the conventional method of increasing the safety by using the two-layered water-impermeable sheets, it is possible to increase the safety factor by simply doubling the strength of the two water-impermeable sheets. However, there is a problem in that it is not possible to identify the damaged portion of the sheet that has occurred after the landfilling of the waste, and the damaged portion cannot be repaired. And if it is possible to identify and repair the damaged part of the water-blocking sheet, it will be particularly effective in improving the safety and reliability of the waste disposal site using the water-blocking sheet, which has excellent water-blocking properties and is advantageous for construction. Be beneficial.
【０００５】そこで、この発明は上記課題に着目してな
されたもので、遮水シートを使用した廃棄物処分場にお
いて、遮水シートが破損した場合の当該破損箇所を容易
に特定して汚水の漏出の管理を容易に行なうことのでき
る廃棄物処分場における遮水シートの破損部検出方法を
提供することを目的とする。Therefore, the present invention has been made in view of the above-mentioned problems, and in a waste disposal site using a water-blocking sheet, when the water-blocking sheet is damaged, the damaged portion can be easily specified and sewage can be collected. It is an object of the present invention to provide a method for detecting a damaged portion of a waterproof sheet in a waste disposal site, which allows easy management of leakage.
【０００６】また、本発明は、破損箇所を容易に特定す
ることができるとともに、特定された破損箇所からの汚
水の漏出を容易に防止することのできる遮水シートを提
供することを目的とする。It is another object of the present invention to provide a water-impervious sheet which can easily identify a damaged portion and can easily prevent leakage of dirty water from the identified damaged portion. .
【０００７】[0007]
【課題を解決するための手段】この発明は、上記目的を
鑑みてなされたものであり、その要旨は、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廃
棄物処分場の底面部に敷設するとともに、前記各袋体に
耐圧チューブ、耐圧ホース等の耐圧管を接続し、廃棄物
の投入後に、前記耐圧管を介して前記袋体内を真空吸引
することにより、前記遮水シートの破損によって生じる
廃棄物からの漏水を検知して、当該破損箇所を特定する
ことを特徴とする廃棄物処分場における遮水シートの破
損部検出方法にある。The present invention has been made in view of the above-mentioned object, and its gist is a water-impermeable sheet having a double structure composed of a lower layer sheet and an upper layer sheet,
The impermeable sheet having a large number of bags formed by dividing the impermeable sheet into a large number of sections and press-bonding the lower layer sheet and the upper layer sheet around the divided sections is a bottom portion of a waste disposal site. The pressure-shielding tube, pressure-resistant hose, or other pressure-resistant tube is connected to each bag, and after the waste is thrown in, the bag body is vacuum-sucked through the pressure-resistant tube, so that A method for detecting a damaged portion of a water blocking sheet in a waste disposal site is characterized by detecting water leakage from waste caused by damage and identifying the damaged portion.
【０００８】また、この発明の他の要旨は、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
を廃棄物処分場の底面部に敷設するとともに、前記各袋
体に耐圧チューブ、耐圧ホース等の耐圧管及び外気と連
通する連通管を接続し、廃棄物の投入後に、前記耐圧管
を介して前記袋体内に空気を吹込むことにより、前記遮
水シートの破損によって生じる廃棄物からの漏水を前記
連通管を介して採取検知して、当該破損箇所を特定する
ことを特徴とする廃棄物処分場における遮水シートの破
損部検出方法にある。Another aspect of the present invention is a water-impermeable sheet having a double structure consisting of a lower layer sheet and an upper layer sheet, wherein the water impermeable sheet is divided into a number of sections and the periphery of the divided sections. In laying on the bottom of the waste disposal site a water-impervious sheet that forms a number of bags by crimping the lower layer sheet and the upper layer sheet, and in each of the bag body pressure resistant tube, pressure hose, etc. By connecting a pipe and a communication pipe that communicates with the outside air, and blowing the air into the bag body through the pressure-resistant pipe after the input of waste, the leakage of water from the waste caused by the breakage of the impermeable sheet is described above. It is a method for detecting a damaged portion of a waterproof sheet in a waste disposal site, which is characterized by detecting and collecting the damaged portion through a communication pipe.
【０００９】ここで、前記二重構造の遮水シートとは、
少なくとも下層シートと上層シートとからなる二重構造
の部分を含んでいれば良く、したがって、上層シートの
上面にさらにシートを圧着した多重構造の遮水シート
も、二重構造の遮水シートを備える点でこの発明の技術
範囲に含まれるものである。Here, the double-layered waterproof sheet is
It suffices to include at least a double structure portion composed of a lower layer sheet and an upper layer sheet. Therefore, a water blocking sheet having a multiple structure in which a sheet is further pressure-bonded to the upper surface of the upper layer sheet also has a double layer water blocking sheet. This is within the technical scope of the present invention.
【００１０】また、上記この発明の廃棄物処分場におけ
る遮水シートの破損部検出方法では、前記特定された破
損箇所としての袋体に、前記耐圧管を介して固化材を給
送注入することにより、当該袋体内を固化して破損箇所
を補修することもできる。Further, in the method of detecting a damaged portion of the water blocking sheet in the waste disposal site according to the present invention, the solidifying material is fed into the bag body as the specified damaged portion through the pressure tube. By doing so, the inside of the bag can be solidified to repair the damaged portion.
【００１１】そして、この発明のさらに他の要旨は、廃
棄物処分場の底面部を覆って敷設される下層シートと、
該下層シートの上面所定領域において縦横に配設され、
外周部を前記下層シートあるいは既に設置した上層シー
トに圧着して前記下層シートとともに袋体を形成して前
記所定領域を区画する、前記下層シートより小さい所定
面積の多数の上層シートと、前記下層シート及び上層シ
ートによって形成された袋体内に配設されるマット部材
と、前記袋体に設けた第１の開口を介して袋体に接続す
る耐圧チューブ、耐圧ホース等の耐圧管と、前記第１の
開口とは別途設けた第２の開口に取付けた逆止弁とから
なることを特徴とする遮水シートにある。 さらにま
た、本発明の他の要旨は、廃棄物処分場の底面部を覆っ
て敷設される下層シートと、該下層シートの上面所定領
域において縦横に配設され、外周部を前記下層シートあ
るいは既に設置した上層シートに圧着して前記下層シー
トとともに袋体を形成して前記所定領域を区画する、前
記下層シートより小さい所定面積の多数の上層シート
と、前記下層シート及び上層シートによって形成された
袋体内に配設されるマット部材と、前記袋体に設けた第
１の開口を介して袋体に接続する耐圧チューブ、耐圧ホ
ース等の耐圧管と、前記第１の開口とは別途設けた第２
の開口に接続されて外気と連通する連通管とからなるこ
とを特徴とする遮水シートにある。[0011] A still further gist of the present invention is a lower layer sheet laid to cover the bottom surface of a waste disposal site,
Arranged vertically and horizontally in a predetermined area on the upper surface of the lower layer sheet,
A plurality of upper-layer sheets having a predetermined area smaller than the lower-layer sheet and the lower-layer sheet by forming a bag together with the lower-layer sheet by pressing the outer peripheral portion onto the lower-layer sheet or the already-set upper-layer sheet to partition the predetermined region, and the lower-layer sheet. And a pressure-resistant tube such as a pressure-resistant tube or a pressure-resistant hose connected to the bag body through a first opening provided in the bag body, the mat member formed in the bag body formed by the upper layer sheet, and the first member. And a check valve attached to a second opening that is separately provided. Still another object of the present invention is to provide a lower layer sheet that is laid so as to cover the bottom surface of a waste disposal site, vertically and horizontally arranged in a predetermined area on the upper surface of the lower layer sheet, and the outer peripheral portion of the lower layer sheet or already A bag formed by pressing the installed upper layer sheet to form a bag together with the lower layer sheet and partitioning the predetermined area, and a plurality of upper layer sheets having a predetermined area smaller than the lower layer sheet, and the lower layer sheet and the upper layer sheet. A mat member disposed inside the body, a pressure resistant tube such as a pressure resistant tube or a pressure resistant hose connected to the bag through the first opening provided in the bag, and the first opening separately provided. Two
The water-impervious sheet is characterized in that it comprises a communication pipe connected to the opening of and communicating with the outside air.
【００１２】ここで、前記上層シートの、下層シートよ
り小さい所定面積とは、遮水シートを管理するための区
画の大きさ等を鑑みて適宜設計され、どのような大きさ
であっても施工は可能である。そして、遮水シートの破
損時の補修効率、破損の早期発見等の面からは小面積と
することが、施工性、経済性の面からは大面積とするこ
とが好ましいが、２００〜１０００ｍ2 とすることが一
般的である。Here, the predetermined area of the upper layer sheet smaller than the lower layer sheet is appropriately designed in consideration of the size of the partition for managing the water-blocking sheet, etc. Is possible. The water shield sheet breakage during repair efficiency, from the viewpoint of early detection such damage to be a small area, workability, it is preferable to a large area from the viewpoint of economy, 200～1000M 2 Is generally used.
【００１３】また、前記袋体内に配設されるマット部材
とは、下層シート及び上層シートの保護部材及びシート
破損時の汚水の集水材としての機能を有する部材をい
い、例えば、不織布等の通水性のあるシート状のマット
を使用することが好ましい。The mat member disposed in the bag means a member that has a function as a protective member for the lower and upper sheets and a water collecting material for sewage when the sheet is damaged. It is preferable to use a sheet-like mat having water permeability.
【００１４】[0014]
【作用】この発明の廃棄物処分場における遮水シートの
破損部検出方法によれば、廃棄物処分場の底面部に敷設
された遮水シートを区画分割する各袋体の内部を、耐圧
管を介して各々真空吸引するか、あるいは各袋体の内部
に空気を吹込むので、遮水シートの破損により何れかの
袋体内に漏出した廃棄物からの汚水が、耐圧管を介して
吸引されるかあるいは連通管から吹出され、このように
汚水を採取することによって、破損の生じた区画が容易
に特定される。According to the method of detecting a damaged portion of the water blocking sheet in the waste disposal site of the present invention, the inside of each bag for partitioning the water blocking sheet laid on the bottom surface of the waste disposal site is covered with a pressure tube. Vacuum is sucked through each of the bags, or air is blown into each bag, so that the waste water leaked into one of the bags due to the breakage of the water blocking sheet is sucked through the pressure tube. By sewage or sewage from the communication pipe and collecting wastewater in this way, the damaged area can be easily identified.
【００１５】なお、特定された破損箇所を含む袋体内
に、耐圧管を介して固化材を供給注入すればれば、袋体
の内部が固化することにより破損箇所を容易に補修する
ことができる。By supplying and injecting the solidifying material into the bag body including the specified damaged portion through the pressure resistant tube, the inside of the bag body is solidified and the damaged portion can be easily repaired.
【００１６】また、この発明の遮水シートによれば、下
層シートを基盤として上層シートを順次圧着して行くこ
とにより、その設置作業を容易に行なうことができる。
また、各袋体には、耐圧管と、逆止弁あるいは連通管と
が取り付けられているので、耐圧管を介して袋体内を真
空吸引して破損の生じた袋体を検出するとともに、耐圧
管を介してこの袋体内に固化材を注入することにより、
当該区画を容易に補修することができる。Further, according to the water impervious sheet of the present invention, the installation work can be easily performed by sequentially pressing the upper layer sheet with the lower layer sheet as a base.
In addition, since a pressure tube and a check valve or a communication tube are attached to each bag, the bag is evacuated through the pressure tube to detect the damaged bag, and the By injecting the solidifying material into this bag through the tube,
The compartment can be easily repaired.
【００１７】[0017]
【実施例】以下、この発明の実施例を図面を用いて詳細
に説明する。図１はこの発明にかかる遮水シート敷設し
た廃棄物処分場１０の一実施例を示す略示断面図であ
る。すなわち、廃棄物処分場１０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、凹部底
面には、下層シート１１と上層シート１２とからなる二
重構造の遮水シート１３が敷設されている。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a schematic sectional view showing an embodiment of a waste disposal site 10 having a water-blocking sheet according to the present invention. That is, the waste disposal site 10 is formed by excavating a vast site, for example, in a mountainous area in a concave shape, and a double-layered waterproof sheet 13 including a lower layer sheet 11 and an upper layer sheet 12 is formed on the bottom surface of the concave portion. It has been laid.
【００１８】下層シート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で、連続一体化した状態で
廃棄物処分場１０の凹部底面の全域を覆って敷設されて
いる。一方上層シート１２は、下層シート１１と同様の
材料から形成された、約２００〜１０００ｍ2 の面積を
有するシート部材で、下層シート１１上に縦横に多数配
設される。そして、図２に示すように、上層シート１２
は、その外周部を、前記下層シート１１あるいは既に設
置した上層シート１２の上面に、熱溶着や接着剤等によ
り圧着接合して、下層シート１１と上層シート１２とに
よって密閉された袋体１８を縦横に区画形成するととも
に、この袋体１８の内部には、例えば不織布からなるシ
ート状の保護マット１４が配設されている。The lower layer sheet 11 is, for example, a soft synthetic resin or rubber type sheet member and is laid so as to cover the entire bottom surface of the concave portion of the waste disposal site 10 in a continuously integrated state. On the other hand, the upper layer sheet 12 is a sheet member formed of a material similar to that of the lower layer sheet 11 and having an area of about 200 to 1000 m 2 , and is arranged on the lower layer sheet 11 in a number of rows and columns. Then, as shown in FIG. 2, the upper layer sheet 12
The outer peripheral portion is pressure-bonded to the upper surface of the lower layer sheet 11 or the upper layer sheet 12 that has already been installed by heat welding, an adhesive, or the like to form a bag body 18 sealed by the lower layer sheet 11 and the upper layer sheet 12. In addition to being vertically and horizontally partitioned, a sheet-like protective mat 14 made of, for example, non-woven fabric is disposed inside the bag body 18.
【００１９】そして、縦横に多数区画形成された袋体１
８の各々は、図３に示すように、その一側部に設けた第
１の開口２０には、口径約１０〜２０ｍｍの耐圧チュー
ブからなる管理ホース１６を接続してこれを廃棄物処分
場１０外周の地表部Ｇ（図１参照）まで延長するととも
に、前記第１の開口２０とは反対側の側部に設けた第２
の開口２１には、袋体１８の内部から外部への空気の流
出は許容するが、外部から袋体１８内への空気の流入は
阻止するガス抜き逆止弁２２を備えている。A bag body 1 having a large number of compartments formed vertically and horizontally
As shown in FIG. 3, each of the 8 is connected to the first opening 20 provided on one side thereof with a management hose 16 made of a pressure resistant tube having a diameter of about 10 to 20 mm, which is connected to a waste disposal site. 10 a second surface extending to the outer surface G (see FIG. 1) on the outer periphery and provided on the side opposite to the first opening 20
The opening 21 is provided with a gas release check valve 22 that allows the outflow of air from the inside of the bag body 18 to the outside but blocks the inflow of air from the outside into the bag body 18.
【００２０】ここで、密閉空間としての袋体１８により
区画形成される領域を有する本実施例の二重構造の遮水
シート１３は、容易に敷設することができる。すなわ
ち、前述のように、下層シート１１あるいは既に設置し
た上層シート１２の上面に、上層シートを圧着接合して
袋体１８を形成してゆく際に、前記管理ホース１６に真
空ポンプを接続して袋体１８を真空状態とするか、ある
いは管理ホース１６から煙または空気圧を注入して目視
や石鹸水によって圧着箇所の不良を検査することによ
り、不良箇所を早期に発見して早期の修理を行ない、こ
れによって袋体１８の完全密閉が可能となる。なお、廃
棄物の埋め立て作業中においても、このような袋体１８
の点検、及び早期の補修を行なうことができる。また、
袋体１８を真空状態とすれば、下層シート１１と上層シ
ート１２とが一体化して強風等により各シートが煽られ
るのを防止することができる。Here, the double-structured waterproof sheet 13 of this embodiment having an area defined by the bag body 18 as a closed space can be easily laid. That is, as described above, a vacuum pump is connected to the management hose 16 when the upper sheet is pressure-bonded to the upper surface of the lower sheet 11 or the upper sheet 12 that has already been installed to form the bag body 18. The bag 18 is evacuated, or smoke or air pressure is injected from the management hose 16 and visually or by inspecting for a defect at the crimped portion with soapy water, the defective portion is found early and repaired early. As a result, the bag 18 can be completely sealed. Even during the landfill work of waste, such a bag 18
Can be inspected and repaired early. Also,
When the bag body 18 is placed in a vacuum state, it is possible to prevent the lower layer sheet 11 and the upper layer sheet 12 from being integrated with each other and to prevent each sheet from being blown by strong wind or the like.
【００２１】そして、本実施例の廃棄物処分場１０で
は、廃棄物の埋立て作業中あるいは埋立て完了後におい
て、遮水シートの破損により汚水の漏出が生じてもこの
破損箇所を容易に特定することができるとともに、かか
る破損箇所を容易に補修することができる。すなわち、
区画形成された各袋体１８が管理ホース１６を介して各
々真空吸引されるので、遮水シート１３が破損して何れ
かの袋体１８の中に汚水が漏出すると、該漏出水が吸引
されてれて地表部Ｇに至り、これによって破損の生じた
区画を容易に特定することができる。また、破損を検知
した後も引き続き真空吸引を続けることにより、破損箇
所から漏出する汚水を吸い上げて、汚水が外部に流出す
るのを防止することができる。さらに、管理ホース１６
から、例えば、好ましくは固化後に強弾性を有するウレ
タン樹脂や高吸水性樹脂等からなる流体としての固化材
を破損の生じた区画に加圧注入すれば、注入された流体
は保護マットを通り、シートの破損箇所から地中に注入
されるとともに、破損部周辺の地盤を固め、さらに保護
マットも固化するので、シートの破損箇所の表裏が一体
化して破損箇所は完全に補修される。また、固化材とし
てエポキシ樹脂、ポリエステル樹脂などの固化性合成樹
脂を使用すれば、これらは接着剤としても働くので破損
部周辺のシートと、保護マットと、周辺地盤との一体化
を強める。In the waste disposal site 10 of this embodiment, even if wastewater leaks due to breakage of the water-blocking sheet during landfilling of waste or after landfilling is completed, this breakage point can be easily specified. In addition to being able to do so, such a damaged portion can be easily repaired. That is,
Since the respective divided bag bodies 18 are vacuum-sucked through the management hose 16, if the water-blocking sheet 13 is damaged and sewage leaks into any of the bag bodies 18, the leaked water is sucked. It reaches the ground surface portion G, and the damaged section can be easily specified. Further, by continuing vacuum suction even after detecting the damage, it is possible to suck up the dirty water leaking from the damaged portion and prevent the dirty water from flowing out. In addition, the management hose 16
From, for example, if the solidified material as a fluid consisting of urethane resin or super absorbent resin having strong elasticity after solidification is preferably injected into the damaged compartment, the injected fluid passes through the protective mat, It is injected into the ground from the damaged part of the sheet, the ground around the damaged part is solidified, and the protective mat is also solidified, so that the front and back of the damaged part of the sheet are integrated and the damaged part is completely repaired. When a solidifying synthetic resin such as an epoxy resin or a polyester resin is used as the solidifying material, these also serve as an adhesive, so that the sheet around the damaged portion, the protective mat, and the surrounding ground are strengthened.
【００２２】また、本実施例の廃棄物処分場１０では、
廃棄物の埋立て投棄の完了後において、半永久的な維持
管理を可能にすべく強固な遮水層を構築することができ
る。すなわち、埋立ての完了後に、各区画に固化材を注
入し、袋体１８を全体として一体化した板状に成形する
ことにより、外力に対して耐力の大きく安全性の高い遮
水層が構築される。Further, in the waste disposal site 10 of this embodiment,
After the landfill dumping of waste is completed, a strong impermeable layer can be constructed to enable semi-permanent maintenance. That is, after the landfilling is completed, a solidifying material is injected into each compartment, and the bag body 18 is formed into an integrated plate-like shape, thereby constructing a water-impervious layer having high resistance to external force and high safety. To be done.
【００２３】図４は、袋体１８の他の実施態様を示すも
ので、前記第１の開口２０には前記管理ホース１６を、
前記第２の開口２１には、地表部Ｇまで延長して外気と
連通可能な連通ホース１７を取り付けたものである。こ
の袋体１８によれば、必要に応じて連通ホース１７から
袋体１８内に外気を吹き込むことにより、管理ホース１
６による汚水等の吸い上げ揚程を向上させることができ
る。また、かかる構成を有する袋体１８では、管理ホー
ス１６から空気を吹込むことによって破損箇所から漏出
した汚水を連通ホース１８を介して吹出させ、これによ
って破損箇所を特定することもできる。さらに、固化材
により袋体１３全体を固めて遮水層等を構築する作業を
容易にすることができる。すなわち、袋体１８全体を固
める作業は、管理ホース１６からの固化材の注入を、連
通ホース１７により袋体１８の中の空気を抜きながら行
ない、連通ホース１７から固化材が排出した時点で固化
材の注入作業を終了する。FIG. 4 shows another embodiment of the bag body 18, in which the management hose 16 is provided in the first opening 20.
A communication hose 17 is attached to the second opening 21 so as to extend to the surface G and communicate with the outside air. According to the bag body 18, the management hose 1 can be obtained by blowing outside air into the bag body 18 from the communication hose 17 as needed.
It is possible to improve the pumping head of sewage and the like due to 6. Further, in the bag body 18 having such a configuration, by blowing air from the management hose 16, sewage leaked from the damaged portion can be blown out through the communication hose 18, whereby the damaged portion can be specified. Further, the work of solidifying the entire bag 13 with the solidifying material to construct the water-impervious layer and the like can be facilitated. That is, the work of solidifying the entire bag body 18 is performed by injecting the solidifying material from the management hose 16 while removing air from the bag body 18 by the communication hose 17, and solidifying when the solidifying material is discharged from the communication hose 17. The material injection work is completed.
【００２４】なお、本実施例では、二重構造の遮水シー
トを備えた廃棄物処分場１０について記載したが、本発
明は多重構造の遮水シートを備えた廃棄物処分場にも容
易に応用することができる。また、廃棄物処分場の構造
上必要と考えられる特定の場所を選択し、この箇所の遮
水シートのみを二重構造とすることもできる。In this embodiment, the waste disposal site 10 having the double-layered water blocking sheet is described, but the present invention can be easily applied to the waste landfilling site having the multi-layered water blocking sheet. It can be applied. It is also possible to select a specific place considered necessary for the structure of the waste disposal site and make only the water-blocking sheet at this place a double structure.
【００２５】[0025]
【発明の効果】以上詳細に説明したように、この発明に
よる廃棄物処分場における遮水シートの破損部検出方法
によれば、遮水シートの所定領域を区画分割して形成さ
れた多数の袋体を各々真空吸引するかあるいは袋体に空
気を吹き込むので、汚水が採取されることにより遮水シ
ートの破損が検知されるとともに、汚水を吸引した耐圧
管から破損箇所を容易に特定することができ、これによ
って廃棄物処分場における汚水の漏出の管理を容易に行
なうことができる。As described above in detail, according to the method of detecting a damaged portion of a water blocking sheet in a waste disposal site according to the present invention, a large number of bags formed by partitioning a predetermined area of the water blocking sheet. Since each body is vacuum-sucked or air is blown into the bag, damage to the impermeable sheet can be detected by collecting sewage, and the location of damage can be easily identified from the pressure pipe that sucked sewage. This makes it possible to easily manage the leakage of sewage at the waste disposal site.
【００２６】そして、破損箇所を含む袋体内に固化材を
給送注入すれば、破損箇所を容易に補修することができ
る。Then, by feeding and injecting the solidifying material into the bag body including the damaged portion, the damaged portion can be easily repaired.
【００２７】また、この発明の遮水シートによれば、下
層シートの上面所定領域を区画分割して形成された多数
の袋体が、耐圧管と、逆止弁あるいは連通管とを備える
ので、耐圧管を介して各袋体内を各々真空吸引すること
により遮水シートの破損箇所を容易に特定することがで
きるとともに、耐圧管から固化材を袋体内に注入して破
損箇所を容易に補修することができ、これらによって廃
棄物処分場の安全性及び信頼性を向上することができ
る。Further, according to the water-impermeable sheet of the present invention, a large number of bags formed by partitioning the upper surface predetermined region of the lower layer sheet are provided with the pressure resistant pipe and the check valve or the communication pipe. It is possible to easily identify the damaged part of the water-blocking sheet by vacuum suctioning inside each bag through the pressure tube, and to inject the solidified material into the bag from the pressure tube to easily repair the damaged part. Therefore, it is possible to improve the safety and reliability of the waste disposal site.
【図１】この発明にかかる遮水シート敷設した廃棄物処
分場の一実施例を示す略示断面図である。FIG. 1 is a schematic cross-sectional view showing an embodiment of a waste disposal site where a water-blocking sheet is laid according to the present invention.
【図２】上層シートを下層シートに圧着する状況を示す
断面図である。FIG. 2 is a cross-sectional view showing a state in which an upper layer sheet is pressure-bonded to a lower layer sheet.
【図３】袋体を区画配置した状況を示す平面図である。FIG. 3 is a plan view showing a state in which a bag is divided and arranged.
【図４】袋体の他の実施態様を示す平面図である。FIG. 4 is a plan view showing another embodiment of the bag body.
１０ 廃棄物処分場 １１ 下層シート １２ 上層シート １３ 遮水シート １４ 保護マット １６ 管理ホース（耐圧管） １７ 連通ホース（連通管） １８ 袋体 ２０ 第１の開口 ２１ 第２の開口 ２２ 逆止弁 10 Waste Disposal Site 11 Lower Layer Sheet 12 Upper Layer Sheet 13 Water Impermeable Sheet 14 Protective Mat 16 Management Hose (Pressure Resistance Pipe) 17 Communication Hose (Communication Pipe) 18 Bag Body 20 First Opening 21 Second Opening 22 Check Valve
Claims (5)
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廃棄物処分場の底面部に敷設
するとともに、前記各袋体に耐圧チューブ、耐圧ホース
等の耐圧管を接続し、廃棄物の投入後に、前記耐圧管を
介して前記袋体内を真空吸引することにより、前記遮水
シートの破損によって生じる廃棄物からの漏水を採取検
知して、当該破損箇所を特定することを特徴とする廃棄
物処分場における遮水シートの破損部検出方法。1. A water blocking sheet having a double structure composed of a lower layer sheet and an upper layer sheet, wherein the water blocking sheet is divided into a plurality of sections, and the lower layer sheet and the upper layer sheet are provided around the divided sections. By laying a water-impervious sheet with a number of bags formed by crimping and on the bottom of the waste disposal site, and connecting a pressure tube such as a pressure tube or pressure hose to each bag, After the charging, by vacuum suctioning the bag body through the pressure resistant tube, water leakage from waste generated due to damage of the water blocking sheet is collected and detected, and the damaged portion is specified. A method for detecting a damaged part of a waterproof sheet at a landfill site.
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廃棄物処分場の底面部に敷設
するとともに、前記各袋体に耐圧チューブ、耐圧ホース
等の耐圧管及び外気と連通する連通管を接続し、廃棄物
の投入後に、前記耐圧管を介して前記袋体内に空気を吹
込むことにより、前記遮水シートの破損によって生じる
廃棄物からの漏水を前記連通管を介して採取検知して、
当該破損箇所を特定することを特徴とする廃棄物処分場
における遮水シートの破損部検出方法。2. A water-impermeable sheet having a double structure composed of a lower layer sheet and an upper layer sheet, wherein the water impermeable sheet is divided into a plurality of sections, and the lower layer sheet and the upper layer sheet are provided around the divided sections. A water-impermeable sheet having a large number of bags formed by crimping and is laid on the bottom of a waste disposal site, and each bag has a pressure-resistant tube such as a pressure-resistant tube, a pressure-resistant hose, and a communication pipe communicating with the outside air. After injecting waste, the air is blown into the bag body through the pressure resistant pipe to detect leakage of water from the waste caused by the breakage of the impermeable sheet through the communication pipe. hand,
A method for detecting a damaged portion of a water blocking sheet at a waste disposal site, which is characterized by identifying the damaged portion.
に、前記耐圧管を介して固化材を給送注入することによ
り、当該袋体内を固化して破損箇所を補修することを特
徴とする請求項１又は２に記載の廃棄物処分場における
遮水シートの破損部検出方法。3. The bag body as the specified damaged portion is fed and injected with a solidifying material through the pressure resistant tube to solidify the bag body and repair the damaged portion. The method for detecting a damaged portion of a water blocking sheet in a waste disposal site according to claim 1 or 2.
る下層シートと、該下層シートの上面所定領域において
縦横に配設され、外周部を前記下層シートあるいは既に
設置した上層シートに圧着して前記下層シートとともに
袋体を形成して前記所定領域を区画する、前記下層シー
トより小さい所定面積の多数の上層シートと、前記下層
シート及び上層シートによって形成された袋体内に配設
されるマット部材と、前記袋体に設けた第１の開口を介
して袋体に接続する耐圧チューブ、耐圧ホース等の耐圧
管と、前記第１の開口とは別途設けた第２の開口に取付
けた逆止弁とからなることを特徴とする遮水シート。4. A lower layer sheet which is laid so as to cover a bottom surface of a waste disposal site, and vertically and horizontally arranged in a predetermined area on an upper surface of the lower layer sheet, the outer peripheral portion of which is pressure-bonded to the lower layer sheet or an already installed upper layer sheet. Then, a bag body is formed together with the lower layer sheet to partition the predetermined region, and the upper layer sheet having a predetermined area smaller than the lower layer sheet is disposed, and the bag body formed by the lower layer sheet and the upper layer sheet is disposed. The mat member, a pressure resistant tube such as a pressure resistant tube or a pressure resistant hose connected to the bag through the first opening provided in the bag, and the first opening are attached to a second opening provided separately. A waterproof sheet that is composed of a check valve.
る下層シートと、該下層シートの上面所定領域において
縦横に配設され、外周部を前記下層シートあるいは既に
設置した上層シートに圧着して前記下層シートとともに
袋体を形成して前記所定領域を区画する、前記下層シー
トより小さい所定面積の多数の上層シートと、前記下層
シート及び上層シートによって形成された袋体内に配設
されるマット部材と、前記袋体に設けた第１の開口を介
して袋体に接続する耐圧チューブ、耐圧ホース等の耐圧
管と、前記第１の開口とは別途設けた第２の開口に接続
されて外気と連通する連通管とからなることを特徴とす
る遮水シート。5. A lower layer sheet which is laid so as to cover the bottom surface of a waste disposal site, and vertically and horizontally arranged in a predetermined area on the upper surface of the lower layer sheet, the outer peripheral portion of which is pressure-bonded to the lower layer sheet or an already installed upper layer sheet. Then, a bag body is formed together with the lower layer sheet to partition the predetermined region, and the upper layer sheet having a predetermined area smaller than the lower layer sheet is disposed, and the bag body formed by the lower layer sheet and the upper layer sheet is disposed. The mat member, a pressure-resistant tube such as a pressure-resistant tube or pressure-resistant hose connected to the bag through the first opening provided in the bag, and the first opening are connected to a second opening separately provided. A water-impervious sheet characterized by comprising a communication pipe communicating with outside air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4217734A JP2960821B2 (en) | 1992-08-17 | 1992-08-17 | Water impermeable sheet and method for detecting damaged part thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4217734A JP2960821B2 (en) | 1992-08-17 | 1992-08-17 | Water impermeable sheet and method for detecting damaged part thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0663526A true JPH0663526A (en) | 1994-03-08 |
| JP2960821B2 JP2960821B2 (en) | 1999-10-12 |
Family
ID=16708917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4217734A Expired - Fee Related JP2960821B2 (en) | 1992-08-17 | 1992-08-17 | Water impermeable sheet and method for detecting damaged part thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2960821B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0775765A (en) * | 1993-09-08 | 1995-03-20 | Kajima Corp | Waste disposal plant |
| US5615978A (en) * | 1994-05-19 | 1997-04-01 | Obayashi Corporation | Management system for water-barrier sheet |
| JPH11319748A (en) * | 1998-05-15 | 1999-11-24 | Unitika Ltd | Water-barrier facilities using wastewater layer in waste disposal facility |
| JP2003334505A (en) * | 2002-05-20 | 2003-11-25 | Okumura Corp | Water barrier sheet of waste disposal plant and self- repairing type water barrier sheet |
| EP1437541A1 (en) * | 2003-01-07 | 2004-07-14 | Bruno Sager | Sump and method for its use |
| JP2008284454A (en) * | 2007-05-17 | 2008-11-27 | Ohbayashi Corp | Method for detecting water leakage in impervious sheet |
| JP2009069044A (en) * | 2007-09-14 | 2009-04-02 | Okumura Corp | Detection system for impermeable flexible membrane break, and break detection method |
| JP2015007629A (en) * | 2013-06-24 | 2015-01-15 | ソレタンシュ フレシネＳｏｌｅｔａｎｃｈｅ Ｆｒｅｙｓｓｉｎｅｔ | Leakage prevention system and method for retention pond |
| CN117588603A (en) * | 2024-01-18 | 2024-02-23 | 衡水道一工程材料有限公司 | Warm water overflow pipe and severe cold region water delivery channel protection system comprising same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4565550B2 (en) * | 2004-07-07 | 2010-10-20 | 鹿島建設株式会社 | Water shielding material injection type water shielding system |
-
1992
- 1992-08-17 JP JP4217734A patent/JP2960821B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0775765A (en) * | 1993-09-08 | 1995-03-20 | Kajima Corp | Waste disposal plant |
| US5615978A (en) * | 1994-05-19 | 1997-04-01 | Obayashi Corporation | Management system for water-barrier sheet |
| JPH11319748A (en) * | 1998-05-15 | 1999-11-24 | Unitika Ltd | Water-barrier facilities using wastewater layer in waste disposal facility |
| JP2003334505A (en) * | 2002-05-20 | 2003-11-25 | Okumura Corp | Water barrier sheet of waste disposal plant and self- repairing type water barrier sheet |
| EP1437541A1 (en) * | 2003-01-07 | 2004-07-14 | Bruno Sager | Sump and method for its use |
| JP2008284454A (en) * | 2007-05-17 | 2008-11-27 | Ohbayashi Corp | Method for detecting water leakage in impervious sheet |
| JP2009069044A (en) * | 2007-09-14 | 2009-04-02 | Okumura Corp | Detection system for impermeable flexible membrane break, and break detection method |
| JP2015007629A (en) * | 2013-06-24 | 2015-01-15 | ソレタンシュ フレシネＳｏｌｅｔａｎｃｈｅ Ｆｒｅｙｓｓｉｎｅｔ | Leakage prevention system and method for retention pond |
| CN117588603A (en) * | 2024-01-18 | 2024-02-23 | 衡水道一工程材料有限公司 | Warm water overflow pipe and severe cold region water delivery channel protection system comprising same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2960821B2 (en) | 1999-10-12 |
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