JP2002192100A - Method for specifying broken portion of water barrier layer and method for repairing the broken portion - Google Patents
Method for specifying broken portion of water barrier layer and method for repairing the broken portionInfo
- Publication number
- JP2002192100A JP2002192100A JP2000393699A JP2000393699A JP2002192100A JP 2002192100 A JP2002192100 A JP 2002192100A JP 2000393699 A JP2000393699 A JP 2000393699A JP 2000393699 A JP2000393699 A JP 2000393699A JP 2002192100 A JP2002192100 A JP 2002192100A
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- Prior art keywords
- injection
- water
- repairing
- impervious
- layer
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、遮水構造物の遮水
層の破損個所の修復に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a repair of a damaged portion of a water barrier layer of a water barrier structure.
【０００２】[0002]
【従来の技術】従来、遮水構造物の遮水層の近傍に漏水
検知用電極を配置し、電極の電位から破損の有無や破損
個所を電気的漏水検知システムで検知している（特公平
６−６３９０１号公報参照）。この漏水検知用電極を遮
水層の近傍に多数細かく配置すれば、それだけ破損個所
の特定の精度を高めることができるが、その場合、作業
が煩雑になり、また、コストが増大する問題がある。2. Description of the Related Art Conventionally, a water leakage detection electrode is arranged in the vicinity of a water-impervious layer of a water-impervious structure, and the presence or absence of damage and the location of the damage are detected by an electric-leakage detection system based on the potential of the electrode. No. 6-63901). If a large number of such water leakage detection electrodes are finely arranged in the vicinity of the impermeable layer, the specific accuracy of the damaged portion can be increased accordingly, but in that case, the work becomes complicated and the cost increases. .
【０００３】また、遮水層の破損個所が特定できた場合
でも、破損個所を補修するためには破損個所の周囲にあ
る大量の廃棄物を除去する必要があり、廃棄物を除去す
る際には、悪臭や様々なガスなどが多量に発生したり、
周囲の廃棄物が崩落したりするため、補修作業の安全性
の点で問題がある。[0003] Further, even if the damaged portion of the impermeable layer can be identified, it is necessary to remove a large amount of waste around the damaged portion in order to repair the damaged portion. Generates a large amount of foul odors and various gases,
There is a problem in the safety of repair work because the surrounding waste collapses.
【０００４】前記の問題を解決するために、特開平９−
１０８６４４号公報には、遮水シート上の堆積物を除去
した後、ポリウレタン補修剤をポリウレタンエラストマ
ー製の遮水シート上に注入、流延させる遮水構造物の補
修方法を開示している。しかしながら、この方法では、
補修の際に遮水シートの露出が必須である。In order to solve the above problem, Japanese Patent Application Laid-Open No.
Japanese Patent No. 108644 discloses a method for repairing a water-blocking structure in which a polyurethane repair agent is injected onto a water-blocking sheet made of polyurethane elastomer and cast after removing deposits on the water-blocking sheet. However, in this method,
Exposure of the impermeable sheet is essential for repairs.
【０００５】[0005]
【発明が解決しようとする課題】＜イ＞本発明の目的
は、遮水構造物の遮水層の破損個所を正確に特定し、破
損個所の修復を容易に行えるようにすることにある。<A> An object of the present invention is to accurately identify a damaged portion of a water-impermeable layer of a water-impermeable structure and to easily repair the damaged portion.
【０００６】[0006]
【課題を解決するための手段】本発明は、内容物を収容
した遮水構造物の遮水の近傍に漏水検知用電極を複数個
配置して遮水層の破損個所を検知して修復する遮水層の
修復方法において、遮水層のおおよそ特定された破損個
所付近に追加電極を配置し、漏水検知用電極と追加電極
の電位から破損個所を特定し、さらにその破損個所のほ
ぼ上方から所定深さに注入孔を形成し、注入孔を通して
注入材を破損個所及びその周辺部分に注入することを特
徴とする、遮水層の修復方法、又は、前記遮水層の修復
方法において、おおよそ特定された破損個所付近をボー
リングし、そのボーリング孔に追加電極を配置する、遮
水層の修復方法、又は、内容物を収容した遮水構造物の
遮水の近傍に漏水検知用電極を複数個配置して遮水層の
破損個所を検知して修復する遮水層の修復方法におい
て、破損個所のほぼ上方から所定深さに注入孔を形成
し、注入孔に注入管を配置し、注入管と注入孔間の遮水
層上の空間にパッカーを膨張させ、注入管から注入材を
投入し、破損個所及び周辺部分に注入材を注入すること
を特徴とする、遮水層の修復方法、又は、内容物を収容
した遮水構造物の遮水の近傍に漏水検知用電極を複数個
配置して遮水層の破損個所を検知して修復する遮水層の
修復方法において、破損個所のほぼ上方から所定深さに
注入孔を形成し、注入孔に注入内管と注入外管を備えた
注入２重管を配置し、注入内管と注入外管間の空間にパ
ッカーを膨張させ、注入内管から注入材を投入し、破損
個所及び周辺部分に注入材を注入することを特徴とす
る、遮水層の修復方法に関する。なお、本発明におい
て、破損個所付近とは、破損個所より広い範囲を表し、
また、おおよそ特定された破損個所とは、漏水検知用電
極で特定された破損個所を表す。SUMMARY OF THE INVENTION According to the present invention, a plurality of electrodes for detecting water leakage are arranged in the vicinity of a water-impervious structure of a water-impervious structure containing contents to detect and repair a damaged part of the water-impervious layer. In the method of repairing the impermeable layer, an additional electrode is placed near the damaged area roughly specified on the impermeable layer, the damaged area is identified from the potential of the leak detection electrode and the additional electrode, and the damaged area is identified from almost above the damaged area. Forming an injection hole at a predetermined depth and injecting an injection material through the injection hole into a damaged portion and its peripheral portion, wherein the method of repairing the water-blocking layer, or the method of repairing the water-blocking layer, Boring in the vicinity of the identified damaged part and placing an additional electrode in the borehole, repair method of the impermeable layer, or multiple leak detection electrodes near the impermeable structure of the impermeable structure containing the contents To detect breakage of the impermeable layer In the method for repairing the impermeable layer to be repaired, an injection hole is formed at a predetermined depth from substantially above the damaged portion, an injection pipe is arranged in the injection hole, and a packer is placed in a space above the water impermeable layer between the injection pipe and the injection hole. And injecting the injection material from the injection pipe, and injecting the injection material into the damaged area and the surrounding area. In the method of repairing a water-impervious layer in which a plurality of electrodes for water-leakage detection are arranged in the vicinity of water to detect and repair a damaged part of the water-impervious layer, an injection hole is formed at a predetermined depth from almost above the damaged part, An injection double tube having an inner injection tube and an outer injection tube is arranged in the injection hole, the packer is expanded in the space between the inner injection tube and the outer injection tube, the injection material is injected from the inner injection tube, and the damaged portion and The present invention relates to a method for repairing a water-impervious layer, which comprises injecting an injection material into a peripheral portion. Note that, in the present invention, the vicinity of the damaged portion represents a wider range than the damaged portion,
In addition, the roughly specified damaged portion indicates a damaged portion specified by the water leakage detection electrode.
【０００７】[0007]
【発明の実施の態様】以下、図面を用いて本発明の実施
の態様を説明する。Embodiments of the present invention will be described below with reference to the drawings.
【０００８】以下に、遮水構造物の破損個所の特定方法
の例について説明する。[0008] An example of a method for specifying a damaged portion of a water-blocking structure will be described below.
【０００９】＜イ＞遮水層の破損個所の特定方法 廃棄物処分場や調整池等のように廃棄物や水などの内容
物を収容する遮水構造物１において、水などの溶液が外
部に流出しないように底面に遮水層１１が敷設されてい
る。<A> Method of Identifying Damaged Section of Water-impermeable Layer In the water-impervious structure 1 that stores contents such as waste and water, such as a waste disposal site or a regulating pond, a solution such as water The impermeable layer 11 is laid on the bottom surface so as not to flow out.
【００１０】この遮水層１１の破損の有無や破損個所
は、種々の方法で検出することができ、例えば、図１の
ような電気的検知システムを用いることができる。電気
的検知システムを使用した場合、遮水構造物１の内外に
内部基準電極２１と外部基準電極２２を配置し、両電極
間に電圧を印加する。漏水検知用電極２３は、遮水層１
１付近に多数、配置され、電位を検知する。もし、遮水
層１１に破損個所１２があると、内部基準電極２１と外
部基準電極２２間に電流が流れ、遮水層１１付近にも電
位分布が発生する。例えば、漏水検知用電極２３による
測定から図２のような等電位線２４の図を描くことがで
きる。等電位線２４の分布から、破損個所１２を特定す
ることができる。The presence / absence and location of the breakage of the impermeable layer 11 can be detected by various methods. For example, an electric detection system as shown in FIG. 1 can be used. When an electric detection system is used, an internal reference electrode 21 and an external reference electrode 22 are arranged inside and outside the water-blocking structure 1, and a voltage is applied between both electrodes. The water leakage detection electrode 23 is
Many are arranged in the vicinity of 1 to detect the potential. If there is a broken portion 12 in the impermeable layer 11, a current flows between the internal reference electrode 21 and the external reference electrode 22, and a potential distribution is also generated near the impermeable layer 11. For example, a diagram of the equipotential line 24 as shown in FIG. 2 can be drawn from the measurement by the water leakage detection electrode 23. The broken portion 12 can be specified from the distribution of the equipotential lines 24.
【００１１】＜ロ＞破損個所のより正確な位置の特定 漏水検知用電極２３が、遮水層１１の広さに対して十分
な数がないと、破損個所１２の位置を正確に特定するこ
とができない。そこで、より正確に破損個所１２を特定
するために、先ず、前記破損個所の特定方法でおおよそ
特定された破損個所１２付近の略上方の廃棄物などの内
容物１３をボーリングする。その際、ボーリングで掘削
された内容物１３を調査する。それと共に、ボーリング
が遮水層１１に近づいた時点で、漏水検知用の付加電極
をボーリング孔から差し込む。この付加電極と既設の漏
水検知用電極２３を用いて遮水層１１付近の電位分布を
測定すると、破損個所１２の位置をより正確に求めるこ
とができる。付加電極は、１個〜複数個用いられる。<B> Specifying More Accurate Location of Damaged Location If the number of the leak detection electrodes 23 is not sufficient for the size of the impermeable layer 11, the location of the damaged location 12 can be accurately identified. Can not. Therefore, in order to specify the damaged portion 12 more accurately, first, the content 13 such as waste substantially above the damaged portion 12 which is roughly specified by the method for specifying the damaged portion is drilled. At this time, the contents 13 excavated by boring are investigated. At the same time, when the boring approaches the impermeable layer 11, an additional electrode for detecting water leakage is inserted from the boring hole. When the potential distribution in the vicinity of the impermeable layer 11 is measured using the additional electrode and the existing leak detection electrode 23, the position of the damaged portion 12 can be obtained more accurately. One or more additional electrodes are used.
【００１２】以下に、破損個所の修復方法の例について
説明する。An example of a method for repairing a damaged part will be described below.
【００１３】＜イ＞注入孔の形成 遮水層の破損個所を漏水検知用電極で特定し、又は付加
電極を用いてより正確に特定する。そして、その破損個
所を修復するには、例えば図３に示すように、先ず、破
損個所の略上方の廃棄物などの内容物１３を２重管ロッ
ド３により遮水層下のベントナイト混合層などの外部保
護層１５まで掘削し、注入孔１６を形成する。注入孔１
６の深さは、例えば、遮水層下の２０ｃｍとする。２重
管ロッド３は、内管ロッド３１と外管ロッド３２とから
構成される。外管ロッド３２の外径は、例えば、９０ｃ
ｍ〜１２０ｃｍであることが好ましい。<A> Formation of Injection Hole Damaged portion of the impermeable layer is specified by a leak detection electrode, or more accurately specified by using an additional electrode. In order to repair the damaged portion, for example, as shown in FIG. 3, first, the contents 13 such as waste substantially above the damaged portion are bent by the double pipe rod 3 into a bentonite mixed layer below the impermeable layer. The outer protective layer 15 is excavated to form an injection hole 16. Injection hole 1
The depth of 6 is, for example, 20 cm below the impermeable layer. The double pipe rod 3 includes an inner pipe rod 31 and an outer pipe rod 32. The outer diameter of the outer pipe rod 32 is, for example, 90c
m to 120 cm.
【００１４】＜ロ＞注入管の建て込み 次に、外管ロッド３２を残し、内管ロッド３１を引き抜
いた後、外管ロッド３２内に注入管４を建て込み、その
後、注入管４を残し、外管ロッド３２を引き抜く。注入
管４は、先端付近に形成された注入口４１と、この注入
口４１から所定間隔上方に設けられたパッカー４２とを
有する。また、注入管４は、建て込んだ際、図４のよう
に注入口４１が遮水層１１上、遮水層内又は遮水層下に
配置される。また注入管４は、パッカー４２が内部保護
層１４に位置するように配置される。<B> Installation of Injection Pipe Next, after the outer pipe rod 32 is left and the inner pipe rod 31 is pulled out, the injection pipe 4 is installed in the outer pipe rod 32, and then the injection pipe 4 is left. Then, the outer tube rod 32 is pulled out. The injection pipe 4 has an injection port 41 formed near the distal end, and a packer 42 provided at a predetermined interval above the injection port 41. When the injection pipe 4 is built, the injection port 41 is arranged on the water-impermeable layer 11, inside the water-impermeable layer, or below the water-impermeable layer as shown in FIG. The injection tube 4 is arranged so that the packer 42 is located on the inner protective layer 14.
【００１５】＜ハ＞注入層の形成 外管ロッド３２を引き抜いた後、パッカー４２により注
入孔１６の内壁と注入管４の外面とを密閉するととも
に、注入管４を通じ注入材１７を送給し、注入口４１か
ら遮水層１１の破損個所付近に注入材を注入し、注入層
１８を形成して破損個所１２を修復する。即ち、パッカ
ー４２の膨張により、注入孔１６と注入管４間のパッカ
ー４２の上下の空間を遮断し、パッカー４２下の注入孔
１６付近の空間を密閉して、注入材を破損個所付近に注
入する。なお、注入材１７として、例えばアスファル
ト、モルタル、高水分吸水性樹脂、ロングゲルウレタン
（固化時間の長いウレタン、例えば固化時間が１０分以
上あるものが好ましい。）などが使用できる。<C> Formation of Injection Layer After pulling out the outer tube rod 32, the inner wall of the injection hole 16 and the outer surface of the injection tube 4 are sealed by the packer 42, and the injection material 17 is fed through the injection tube 4. Then, an injection material is injected from the injection port 41 into the vicinity of the damaged portion of the impermeable layer 11, and the injection layer 18 is formed to repair the damaged portion 12. That is, due to the expansion of the packer 42, the space above and below the packer 42 between the injection hole 16 and the injection pipe 4 is shut off, the space near the injection hole 16 below the packer 42 is sealed, and the injection material is injected near the damaged portion. I do. In addition, as the injection material 17, for example, asphalt, mortar, a highly water-absorbent resin, long gel urethane (urethane having a long solidification time, for example, preferably having a solidification time of 10 minutes or more) can be used.
【００１６】パッカー４２による注入孔１６の内壁と注
入管４の外面との密閉作業は、パッカー４２内に硬化材
などの充填材４３を充填し、パッカー４２を膨張させて
行う。又は、注入孔１６の内径より若干大きな外径を有
した、弾性素材からなるパッカー（図示していない）を
使用する方法もある。上記パッカー内への硬化材などの
充填材４３の充填は、図４に示すように例えばパッカー
４２に連通する注入パイプ４４を用いて行うことができ
る。The packing between the inner wall of the injection hole 16 and the outer surface of the injection pipe 4 by the packer 42 is performed by filling the packing 42 with a filler 43 such as a hardening material and expanding the packer 42. Alternatively, there is a method of using a packer (not shown) made of an elastic material and having an outer diameter slightly larger than the inner diameter of the injection hole 16. The filling of the filler 43 such as a hardening material into the packer can be performed by using, for example, an injection pipe 44 communicating with the packer 42 as shown in FIG.
【００１７】＜ニ＞内容物などが自立している場合 注入管４の建て込み方法として、外管ロッド３２内に建
て込む方法を示したが、内容物１３や粘土層などの内部
保護層１４が自立している場合には、外管ロッド３２を
引き抜いた後、注入孔１６に直接、注入管４を建て込む
こともできる。<D> In the case where the contents are self-supporting The method of building the injection pipe 4 in the outer tube rod 32 has been described. However, the contents 13 and the inner protective layer 14 such as a clay layer have been described. Is independent, the injection pipe 4 can be built directly into the injection hole 16 after the outer pipe rod 32 is pulled out.
【００１８】＜ホ＞注入内管により注入 注入材１７の送給方法として、注入管４内に直接、注入
材１７を送給する方法を示したが、図６のように注入２
重管５を用いて送給することもできる。注入２重管５
は、注入外管５２と、その内部に配置される注入内管５
１とを備えている。注入外管５２の先端部に注入孔５２
１が形成されている。注入外管５２の外周で注入孔５２
１より上部（先端より中央側）にパッカー４２を配置
し、また、注入外管５２の内壁と注入内管５１の外壁間
で注入孔５２１より上部（先端より中央側）に注入内管
用パッカー５３を配置する。<E> Injection by Injection Tube As a method of feeding the injection material 17, the method of directly feeding the injection material 17 into the injection tube 4 has been described. As shown in FIG.
The feed can also be performed using the heavy pipe 5. Double injection tube 5
Are the outer injection tube 52 and the inner injection tube 5 disposed therein.
1 is provided. An injection hole 52 is provided at the tip of the outer injection tube 52.
1 is formed. The outer periphery of the outer injection tube 52 is provided with an injection hole 52.
The packer 42 is disposed above (in the center from the front end) 1 and between the inner wall of the outer injection tube 52 and the outer wall of the inner injection tube 51 and above the injection hole 521 (central side from the front end). Place.
【００１９】注入材１７の送給方法は、以下の通りであ
る。まず、注入２重管５を注入孔１６内に配置し、パッ
カー４２を膨張させて注入外管５２の外面と注入孔１６
の壁面とを密閉して、パッカー上下の空間を遮断する。
それと共に、注入外管５２と注入内管５１間に注入内管
用パッカー５３を膨張させて注入内管用パッカー上下の
空間を遮断する。この状態で注入内管５１により注入材
１７を送給する。注入材１７は、注入内管５１から注入
外管５２の先端部にある注入口５２１を通して外部に排
出され、遮水層１１の破損個所付近に注入され、注入層
１８を形成して破損個所１２を修復する。The method of feeding the injection material 17 is as follows. First, the injection double pipe 5 is arranged in the injection hole 16, and the packer 42 is expanded to make the outer surface of the injection outer pipe 52 and the injection hole 16.
And the space above and below the packer is shut off.
At the same time, the packer 53 for the inner tube is expanded between the outer tube 52 and the inner tube 51 to block the space above and below the inner tube packer. In this state, the injection material 17 is fed by the injection inner pipe 51. The injection material 17 is discharged from the injection inner tube 51 to the outside through the injection port 521 at the tip of the injection outer tube 52, injected near the damaged portion of the impermeable layer 11, and forms the injection layer 18 to form the damaged portion 12. To repair.
【００２０】＜ヘ＞内容物などが自立していない場合 内容物１３が自立しておらず、上述したような外径９０
ｃｍ〜１２０ｃｍの２重管ロッド３では削孔が困難な場
合には、図５に示すように、先ず、筒状の太径のケーシ
ングロッド６を内部保護層１４の手前まで配置する。次
いで、ケーシングロッド６内に注入孔を形成し、上記の
方法で破損個所１２を修復する。<F> When the content is not self-supporting The content 13 is not self-supporting and has an outer diameter 90 as described above.
When drilling is difficult with the double pipe rod 3 cm to 120 cm, as shown in FIG. 5, first, the cylindrical large-diameter casing rod 6 is arranged up to the inner protective layer 14. Next, an injection hole is formed in the casing rod 6, and the damaged portion 12 is repaired by the above-described method.
【００２１】＜ト＞遮水シート上面に不織布を使用した
場合 遮水層１１が、例えば遮水シート上面に設置された不織
布を備えている場合、注入材１７は、不織布の下に注入
され、破損個所１２を補修する。以上述べた通り、本発
明の遮水層の補修方法では、遮水シートの露出が必ずし
も必要ではない。<G> In the case where the nonwoven fabric is used on the upper surface of the water impermeable sheet When the water impermeable layer 11 includes, for example, the nonwoven fabric installed on the upper surface of the water impermeable sheet, the injection material 17 is injected under the nonwoven fabric. The damaged part 12 is repaired. As described above, in the method for repairing a water-impervious layer of the present invention, exposure of the water-impervious sheet is not necessarily required.
【００２２】[0022]
【本発明の効果】本発明は、次のような効果を得ること
ができる。 ＜イ＞本発明により、正確に遮水層の破損個所を特定
し、遮水層の破損個所を容易に修復することができる。According to the present invention, the following effects can be obtained. <A> According to the present invention, the damaged portion of the impermeable layer can be accurately specified, and the damaged portion of the impermeable layer can be easily repaired.
【図１】遮水構造物の電気的検知システムの説明図FIG. 1 is an explanatory diagram of an electrical detection system for a water-blocking structure.
【図２】電気的検知システムで測定された遮水層付近の
電位分布の説明図FIG. 2 is an explanatory diagram of a potential distribution near a water impermeable layer measured by an electric detection system.
【図３】遮水層の破損個所の補修方法の説明図FIG. 3 is an explanatory view of a method of repairing a damaged portion of the impermeable layer.
【図４】パッカーを使用した破損個所の補修方法の説明
図FIG. 4 is an explanatory diagram of a method for repairing a damaged portion using a packer.
【図５】ケーシングロッドを使用した破損個所の補修方
法の説明図FIG. 5 is an explanatory view of a method of repairing a damaged portion using a casing rod.
【図６】注入２重管を使用した破損個所の補修方法の説
明図FIG. 6 is an explanatory diagram of a method for repairing a damaged portion using an injection double pipe.
１・・・遮水構造物 １１・・遮水層 １２・・破損個所 １３・・内容物 １４・・内部保護層 １５・・外部保護層 １６・・注入孔 １７・・注入材 １８・・注入層 ２・・・漏水検知装置 ２１・・内部基準電極 ２２・・外部基準電極 ２３・・漏水検知用電極 ２４・・等電位線 ３・・・２重管ロッド ３１・・内管ロッド ３２・・外管ロッド ４・・・注入管 ４１・・注入口 ４２・・パッカー ４３・・充填材 ４４・・注入パイプ ５・・・注入２重管 ５１・・注入内管 ５２・・注入外管 ５２１・注入口 ５３・・注入内管用パッカー ６・・・ケーシングロッド DESCRIPTION OF SYMBOLS 1 ... Water-blocking structure 11 ... Water-blocking layer 12 ... Breakage point 13 ... Contents 14 ... Inner protective layer 15 ... External protective layer 16 ... Injection hole 17 ... Injection material 18 ... Injection Layer 2: Water leak detection device 21 Internal reference electrode 22 External reference electrode 23 Water leakage detection electrode 24 Equipotential line 3 Double rod 31 Inner rod 32 Outer pipe rod 4 ・ ・ ・ Injection pipe 41 ・ ・ Injection port 42 ・ ・ Packer 43 ・ ・ Filling material 44 ・ ・ Injection pipe 5 ・ ・ ・ Injection double pipe 51 ・ ・ Injection inner pipe 52 ・ ・ Injection outer pipe 521 ・Inlet 53 ··· Packer for filling inner pipe 6 ··· Casing rod
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小寺秀則 東京都新宿区西新宿一丁目25番１号 大成 建設株式会社内 (72)発明者 押方利郎 東京都新宿区西新宿一丁目25番１号 大成 建設株式会社内 (72)発明者 海老原正明 東京都新宿区西新宿一丁目25番１号 大成 建設株式会社内 (72)発明者 風岡久二夫 東京都千代田区九段北四丁目２番35号 ラ イト工業株式会社内 (72)発明者 細川茂生 三重県四日市市大協町二丁目３番地 協和 油化株式会社四日市研究所内 (72)発明者 中島徹哉 三重県四日市市大協町二丁目３番地 協和 油化株式会社四日市研究所内 Ｆターム(参考） 4D004 AA46 AB01 BB06 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hidenori Kodera 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Inventor Toshiro Oshigata 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo No. Taisei Construction Co., Ltd. (72) Inventor Masaaki Ebihara 1-25-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. No. Light Industry Co., Ltd. (72) Inventor Shigeo Hosokawa 2-3-3 Daikyocho, Yokkaichi-shi, Mie Prefecture Kyowa Yuka Co., Ltd. Inside Yokkaichi Research Laboratory (72) Inventor Tetsuya Nakajima 2-chome, Daikyocho, Yokkaichi-shi, Mie Prefecture Address Kyowa Yuka Co., Ltd. Yokkaichi Research Laboratory F-term (reference) 4D004 AA46 AB01 BB06
Claims (4)
傍に漏水検知用電極を複数個配置して遮水層の破損個所
を検知して修復する遮水層の修復方法において、 遮水層のおおよそ特定された破損個所付近に追加電極を
配置し、漏水検知用電極と追加電極の電位から破損個所
を特定し、さらにその破損個所のほぼ上方から所定深さ
に注入孔を形成し、注入孔を通して注入材を破損個所及
びその周辺部分に注入することを特徴とする、遮水層の
修復方法。1. A method for repairing a water-impervious layer, comprising arranging a plurality of leak-detection electrodes in the vicinity of the water-impervious structure of the water-impervious structure containing the contents and detecting and repairing a damaged portion of the water-impervious layer, An additional electrode is placed in the vicinity of the damaged part of the water-impervious layer, and the damaged part is identified from the potential of the leak detection electrode and the additional electrode, and an injection hole is formed at a predetermined depth from almost above the damaged part. And injecting an injection material through the injection hole into the damaged location and its surroundings.
いて、 おおよそ特定された破損個所付近をボーリングし、その
ボーリング孔に追加電極を配置する、遮水層の修復方
法。2. The method for repairing a water-impervious layer according to claim 1, further comprising: drilling around an approximately specified damaged portion, and disposing an additional electrode in the borehole.
傍に漏水検知用電極を複数個配置して遮水層の破損個所
を検知して修復する遮水層の修復方法において、 破損個所のほぼ上方から所定深さに注入孔を形成し、注
入孔に注入管を配置し、注入管と注入孔間の遮水層上の
空間にパッカーを膨張させ、注入管から注入材を投入
し、破損個所及び周辺部分に注入材を注入することを特
徴とする、遮水層の修復方法。3. A method for repairing a water-impervious layer, comprising arranging a plurality of leak-detection electrodes near the water-impervious structure of the water-impervious structure containing the contents and detecting and repairing a damaged portion of the water-impervious layer. An injection hole is formed at a predetermined depth from almost above the broken point, an injection pipe is arranged in the injection hole, the packer is expanded in a space above the impermeable layer between the injection pipe and the injection hole, and the injection material is injected from the injection pipe. A method for repairing a water-impervious layer, wherein the method is performed by injecting an injection material into a damaged portion and a peripheral portion.
傍に漏水検知用電極を複数個配置して遮水層の破損個所
を検知して修復する遮水層の修復方法において、 破損個所のほぼ上方から所定深さに注入孔を形成し、注
入孔に注入内管と注入外管を備えた注入２重管を配置
し、注入内管と注入外管間の空間にパッカーを膨張さ
せ、注入内管から注入材を投入し、破損個所及び周辺部
分に注入材を注入することを特徴とする、遮水層の修復
方法。4. A method for repairing a water-impervious layer, comprising arranging a plurality of leak-detection electrodes near the water-impervious structure of a water-impervious structure containing contents and detecting and repairing a damaged portion of the water-impervious layer. An injection hole is formed at a predetermined depth from substantially above the broken point, an injection double tube having an injection inner tube and an injection outer tube is arranged in the injection hole, and a packer is provided in a space between the injection inner tube and the injection outer tube. A method for repairing a water-blocking layer, characterized by inflating, injecting an injection material from an injection inner tube, and injecting the injection material into a damaged portion and a peripheral portion.
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|---|---|---|---|
| JP2000393699A JP4514946B2 (en) | 2000-12-25 | 2000-12-25 | Repair method of impermeable layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000393699A JP4514946B2 (en) | 2000-12-25 | 2000-12-25 | Repair method of impermeable layer |
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| JP4514946B2 JP4514946B2 (en) | 2010-07-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182210A (en) * | 2011-03-18 | 2011-09-14 | 华侨大学 | Leakage repair method for impermeable layer of refuse landfill |
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| KR101905482B1 (en) * | 2017-12-13 | 2018-10-10 | 지에스건설주식회사 | Offshore waste landfill maintaining method |
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| JPH09108644A (en) * | 1995-10-13 | 1997-04-28 | Taisei Corp | Method for repairing impervious structure |
| JPH09108645A (en) * | 1995-10-13 | 1997-04-28 | Taisei Corp | Device for repairing impervious structure |
| JPH09234444A (en) * | 1996-03-04 | 1997-09-09 | Maeda Corp | Method for repairing water barrier sheet and method for injecting repairing agent |
| JPH11300308A (en) * | 1998-04-23 | 1999-11-02 | Kumagai Gumi Co Ltd | Method of repairing water shielding member |
| JP2000144681A (en) * | 1998-11-18 | 2000-05-26 | Taisei Corp | Repairing method for water barrier sheet |
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|---|---|---|---|---|
| JPH06346424A (en) * | 1993-06-10 | 1994-12-20 | Kyowa Hakko Kogyo Co Ltd | Repairing method of watertight structure |
| JPH09108644A (en) * | 1995-10-13 | 1997-04-28 | Taisei Corp | Method for repairing impervious structure |
| JPH09108645A (en) * | 1995-10-13 | 1997-04-28 | Taisei Corp | Device for repairing impervious structure |
| JPH09234444A (en) * | 1996-03-04 | 1997-09-09 | Maeda Corp | Method for repairing water barrier sheet and method for injecting repairing agent |
| JPH11300308A (en) * | 1998-04-23 | 1999-11-02 | Kumagai Gumi Co Ltd | Method of repairing water shielding member |
| JP2000144681A (en) * | 1998-11-18 | 2000-05-26 | Taisei Corp | Repairing method for water barrier sheet |
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| JP4514946B2 (en) | 2010-07-28 |
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