JPH10202217A - Impervious structure - Google Patents
Impervious structureInfo
- Publication number
- JPH10202217A JPH10202217A JP1064297A JP1064297A JPH10202217A JP H10202217 A JPH10202217 A JP H10202217A JP 1064297 A JP1064297 A JP 1064297A JP 1064297 A JP1064297 A JP 1064297A JP H10202217 A JPH10202217 A JP H10202217A
- Authority
- JP
- Japan
- Prior art keywords
- water
- waste
- impervious
- blocking
- pavement
- 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)
- Revetment (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、遮水構造に関
し、特に、廃棄物処分場や貯水池等の貯留施設の底部地
盤を覆って設置されて、内部の貯留水や汚水が外部に流
出するのを防止するための遮水構造に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water impervious structure, and more particularly to a water impervious structure that is installed over the bottom ground of a storage facility such as a waste disposal site or a reservoir to prevent internal stored water or sewage from flowing out. The present invention relates to a water-blocking structure for preventing water leakage.
【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
ば埋立形の廃棄物処分場は、自然の地形を利用したり地
盤を掘削して造成された凹状の地盤の内部に、廃棄物を
埋め立て貯留してゆくものであるが、埋め立てた廃棄物
から浸出する汚水の地下浸透による環境汚染を防止する
ために、処分場の底部地盤に予め遮水工を実施すること
が義務付けられている。2. Description of the Related Art For example, landfill-type waste disposal sites for dumping industrial waste and general waste are disposed in a concave ground formed by utilizing natural terrain or excavating the ground. Although it is landfilled and stored, in order to prevent environmental pollution due to the infiltration of sewage leached from landfilled wastewater into the ground, it is mandatory to implement a water barrier in advance on the bottom ground of the disposal site.
【０００３】また、ゴルフ場のウォーターハザード、簡
易貯水池、溜池若しくはプール等の凹所に水を貯留する
施設の底部地盤には、かかる貯留水等の流出を防止すべ
く、廃棄物処分場と同様に遮水工が施工されることにな
る。[0003] In addition, the bottom ground of a facility for storing water in a recess such as a water hazard at a golf course, a simple reservoir, a basin or a pool is provided with a waste disposal site similar to a waste disposal site in order to prevent the outflow of the stored water and the like. Will be constructed.
【０００４】そして、かかる遮水工としては、従来よ
り、経済性や遮水性の面から、例えば軟質の合成樹脂系
あるいはゴム系の遮水シートを敷設することによって行
なうものが知られている。[0004] As such a water-blocking work, there has been conventionally known a method of laying a soft synthetic resin-based or rubber-based water-blocking sheet from the viewpoint of economy and water-blocking.
【０００５】また、底部地盤上に設けた砕石路盤上にア
スファルトやコンクリートによる舗装を敷設形成して遮
水工としたものも知られている。[0005] Also, there is known a structure in which a pavement made of asphalt or concrete is laid on a crushed stone roadbed provided on a bottom ground to form a water-blocking work.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記従
来の遮水シートによる遮水工によれば、これの上下に保
護砂や不織布等による保護層を設けて遮水構造が構成さ
れるものであるが、遮水シートは、数ｍｍ程度の厚さの
薄いものであるため、例えば廃棄物中の突起物等が突き
刺さって損傷しやすいとともに、特に、遮水シートが敷
設される底面地盤が、軟弱であったり不陸が存在して安
定していない場合には、これの上方にブルドーザーやダ
ンプトラック等の重機を走行させたり旋回させると、こ
れらの重量により遮水シートに撓みやよれが生じて破損
しやすくなるという課題があった。However, according to the above-mentioned conventional water-blocking work using a water-blocking sheet, a water-blocking structure is formed by providing protective layers of protective sand or nonwoven fabric on the upper and lower sides. However, since the impermeable sheet is a thin one having a thickness of about several millimeters, for example, projections and the like in waste are easily pierced and damaged, and particularly, the bottom ground on which the impermeable sheet is laid is soft. When heavy equipment such as bulldozers and dump trucks is run or turned above this, or when there is unevenness and it is not stable, the weight of these may cause the impermeable sheet to bend or twist. There was a problem that it was easily damaged.
【０００７】また、舗装による遮水構造によれば、変形
に対する追随性に劣るため、底面地盤などに大きな変形
が生じた場合には、クラックの発生によって遮水機能が
損なわれるおそれがあるという課題があった。[0007] In addition, according to the water-blocking structure using pavement, the ability to follow deformation is poor, so that if a large deformation occurs in the bottom ground or the like, cracks may be generated and the water-blocking function may be impaired. was there.
【０００８】そこで、この発明は、上記従来の課題に着
目してなされたもので、廃棄物中の突起物等による外力
を受けたり、廃棄物や保護砂等を敷き均すべく上方で重
機が走行あるいは旋回する場合でも、破損が生じるのを
容易に回避することができるとともに、大きな変形を受
けた場合でも遮水機能を損なうことのない遮水構造を提
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 the above-mentioned conventional problems, and a heavy machine is disposed above to receive external force due to projections or the like in waste or to spread waste or protective sand. It is an object of the present invention to provide a water-blocking structure that can easily avoid damage even when traveling or turning, and does not impair the water-blocking function even when subjected to large deformation. .
【０００９】[0009]
【課題を解決するための手段】この発明は、上記目的を
達成するためになされたもので、その要旨は、廃棄物処
分場や貯水池等の貯留施設の底部地盤を覆って設置され
て、内部の貯留水や汚水が外部に流出するのを防止する
ための遮水構造であって、遮水シートと、該遮水シート
をサンドイッチ状に挟み込む上側舗装及び下側舗装とを
含むことを特徴とする遮水構造にある。SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and its gist is that it is installed over the bottom ground of a storage facility such as a waste disposal site or a reservoir, and has an internal structure. A water-blocking structure for preventing stored water or sewage from flowing out to the outside, comprising a water-blocking sheet, and upper and lower pavements sandwiching the water-blocking sheet in a sandwich shape. There is a water barrier structure.
【００１０】ここで、この発明の遮水構造は、当該遮水
構造を２段に積層したり、当該遮水構造の上下に、さら
に遮水シートや保護層を敷設して構成することもでき
る。Here, the water-blocking structure of the present invention can be constructed by laminating the water-blocking structure in two stages or laying a water-blocking sheet or a protective layer above and below the water-blocking structure. .
【００１１】また、この発明の遮水構造は、前記上側舗
装を透水性舗装によって構成することが好ましい。Further, in the water shielding structure of the present invention, it is preferable that the upper pavement is constituted by a permeable pavement.
【００１２】そして、この発明の遮水構造によれば、ア
スファルトやコンクリート等の舗装材料からなる上側舗
装あるいは下側舗装は、強度及び耐久性に優れ、廃棄物
等の貯留物や重機による荷重を広範囲に分散しつつ底部
地盤に支持させることにより、底部地盤が軟弱であった
り底部地盤に不陸がある場合でも、上載荷重を強固に支
持することになるとともに、その剛性によって、廃棄物
中の突起物等による外力を受てもほとんど損傷すること
がなく、また耐候性に優れることになる。According to the water-blocking structure of the present invention, the upper or lower pavement made of a pavement material such as asphalt or concrete is excellent in strength and durability, and is capable of reducing the load caused by stored materials such as waste and heavy machinery. By supporting the bottom ground while dispersing it over a wide area, even if the bottom ground is soft or the bottom ground is uneven, it will strongly support the loading load, and its rigidity will cause Even if it receives an external force due to a projection or the like, it is hardly damaged and has excellent weather resistance.
【００１３】また、上側舗装と下側舗装との間に挟み込
まれた遮水シートは、可撓性を備え、変形に対する追従
性が良好なため、大きな変形を受けて上側舗装や下側舗
装にクラックが生じた場合でも、破断することなく遮水
構造の遮水性を容易に保持することになる。[0013] Further, the impermeable sheet sandwiched between the upper pavement and the lower pavement is flexible and has good follow-up ability to deformation, so that it is subjected to large deformation and becomes an upper pavement or a lower pavement. Even if a crack occurs, the water-blocking structure can easily maintain the water-blocking property without breaking.
【００１４】そして、この発明の遮水構造は、上側舗装
を透水性舗装によって構成すれば、特に廃棄物処分場に
おいて、貯留施設の底部を面排水層とすることができ、
これによって廃棄物等からの浸出水を効率良く集排水す
ることが可能になる。[0014] In the impermeable structure according to the present invention, if the upper pavement is made of a permeable pavement, the bottom of the storage facility can be a surface drainage layer, particularly in a waste disposal site,
This makes it possible to efficiently collect and drain leachate from waste and the like.
【００１５】[0015]
【発明の実施の形態】以下、この発明の好ましい実施の
形態、すなわち実施例について添付図面を参照しつつ詳
細に説明する。この実施例にかかる遮水構造１０は、図
１に示すように、一例として山間部などにおける広大な
敷地を凹状に掘削し、整地することによって造成した廃
棄物処分場１１の、斜面を含む底部地盤２０を覆うよう
にしてに設けられたもので、図２に拡大して示すよう
に、遮水シート１２と、この遮水シート１２をサンドイ
ッチ状に挟み込むようにして形成された、下側舗装とし
ての水密性アスファルト層１３及び上側舗装としての透
水性アスファルト層１４とによって構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention, that is, embodiments, will be described below in detail with reference to the accompanying drawings. As shown in FIG. 1, the water-blocking structure 10 according to the present embodiment includes, as an example, a bottom including a slope of a waste disposal site 11 formed by excavating and leveling a vast site in a mountainous region or the like. As shown in FIG. 2 in an enlarged manner, a water-impervious sheet 12 and a lower pavement formed by sandwiching the water-impervious sheet 12 in a sandwich shape are provided so as to cover the ground 20. And a water-permeable asphalt layer 13 as an upper pavement.
【００１６】ここで、水密性アスファルト層１３は、ア
スファルトコンクリート舗装に一般に使用される、水密
性を備えるように配合した公知の種々のアスファルト混
合物を使用して形成することができ、例えば底部地盤２
０上に採石等を敷設してなる路盤１５上に、舗装工事に
使用する種々の機械を使用して、アスファルト混合物を
例えば５ｃｍ程度の厚さに敷き均して転圧することによ
り、容易に形成することができる。Here, the watertight asphalt layer 13 can be formed by using various known asphalt mixtures which are generally used for asphalt concrete pavement and are blended so as to have watertightness.
By using various machines used for paving work, the asphalt mixture is spread to a thickness of, for example, about 5 cm, and uniformly pressed on a roadbed 15 on which quarries and the like are laid. can do.
【００１７】また、形成された水密性アスファルト層１
３の上面に設置される遮水シート１２は、例えば軟質の
合成樹脂系あるいはゴム系のシ−ト部材からなり、幅２
〜８ｍ程度の運搬や施工に適した大きさのものを、水密
性アスファルト層１３の表面に敷設した後、熱溶着など
によって縦横に接合一体化することにより、水密性アス
ファルト層１３の全体を水密に覆って配設されるもので
ある。Further, the formed watertight asphalt layer 1
3 is made of, for example, a soft synthetic resin or rubber sheet member.
After laying on the surface of the water-tight asphalt layer 13 a size suitable for transportation and construction of about 8 m, the whole of the water-tight asphalt layer 13 is water-tight by joining in a vertical and horizontal manner by heat welding or the like. It is arranged to cover.
【００１８】さらに、敷設した遮水シート１２の上面に
形成される透水性アスファルト層１４は、例えば公知の
排水性舗装に使用する、透水係数が好ましくは１×１０
-2ｃｍ／ｓ程度となるように配合したアスファルト混合
物を使用して形成することができ、敷設した遮水シート
１２上に、舗装工事に使用する種々の機械を使用して、
アスファルト混合物を例えば５ｃｍ程度の厚さに敷き均
して転圧することにより、水密性アスファルト層１３と
ともに遮水シート１２をサンドイッチ状に挟み込んだ状
態で容易に形成されることになる。Further, the water-permeable asphalt layer 14 formed on the upper surface of the laid water-impervious sheet 12 is preferably used for a well-known drainage pavement and has a water permeability coefficient of preferably 1 × 10 5
-2 cm / s can be formed using an asphalt mixture blended so as to be about 2 cm / s, and on the laid water-impervious sheet 12, using various machines used for paving work,
By spreading the asphalt mixture to a thickness of, for example, about 5 cm and rolling it, the asphalt mixture can be easily formed with the water-tight sheet 12 sandwiched together with the water-tight asphalt layer 13.
【００１９】そして、このようにして形成されたこの実
施例の廃棄物処分場１１における遮水構造１０によれ
ば、水密性アスファルト層１３や透水性アスファルト層
１４は、耐候性に優れ、また投棄された廃棄物２１中の
突起物等による外力に対する優れた抵抗性を備えるとと
もに、投棄した廃棄物２１を敷き均すべくこれの上方に
ダンプトラックやブルドーザー等の重機を走行させる場
合でも、これらの荷重を広範囲に分散しつつ安定して底
部地盤２０に支持させることができるので、廃棄物２１
の埋立時に損傷することがほとんどなく、したがって遮
水構造１０による遮水性を長期にわたって維持するとと
もに、遮水シート１２を強固に保護することになる。According to the thus formed water-blocking structure 10 in the waste disposal site 11 of this embodiment, the water-tight asphalt layer 13 and the water-permeable asphalt layer 14 are excellent in weather resistance and are discarded. In addition to providing excellent resistance to external force due to protrusions and the like in the waste 21 that has been dumped, even when a heavy machine such as a dump truck or a bulldozer is driven above the dumped waste 21 to spread the waste 21, Since the load can be stably supported on the bottom ground 20 while dispersing the load over a wide range, the waste 21
Therefore, the water-impervious structure 10 is hardly damaged at the time of landfilling. Therefore, the water-impervious structure 10 maintains the water-impervious property for a long time, and the water-impervious sheet 12 is strongly protected.
【００２０】また、水密性アスファルト層１３と透水性
アスファルト層１４との間に挟み込まれた遮水シート１
２は、可撓性を備え、変形に対する追従性が良好なた
め、変形に対する追従性に劣る水密性アスファルト層１
３や透水性アスファルト層１４が地盤の変動等により大
きな変形を受けてクラックが生じた場合でも、破断する
ことなく遮水構造１０の遮水性を容易に保持することに
なる。Further, the impermeable sheet 1 sandwiched between the water-tight asphalt layer 13 and the water-permeable asphalt layer 14
2 is a water-tight asphalt layer 1 having flexibility and good followability to deformation, and thus poor in followability to deformation.
Even when the cracks occur due to the large deformation of the asphalt layer 3 or the water permeable asphalt layer 14 due to the fluctuation of the ground or the like, the water blocking structure 10 can easily maintain the water blocking without breaking.
【００２１】さらに、この実施例によれば、上側舗装が
透水性アスファルト層１４によって構成されているの
で、廃棄物処分場１１の底部全体に面排水層が形成され
ることになり、これによって投棄された廃棄物２１中か
ら浸出する汚水を効率良く集排水することが可能にな
る。Further, according to this embodiment, since the upper pavement is constituted by the permeable asphalt layer 14, a surface drainage layer is formed on the entire bottom of the waste disposal site 11, thereby dumping. It becomes possible to efficiently collect and drain sewage leached out of the waste 21 that has been discharged.
【００２２】なお、この発明は、上記実施例の実施の態
様のものに限定されるものではなく、各請求項に記載さ
れた構成の範囲内において、種々変更して採用すること
ができる。例えば、上側舗装は、必ずしも透水性アスフ
ァルトによって形成する必要はなく、透水性コンクリー
トを用いて形成することもできるとともに、上側舗装
は、必ずしも透水機能を有するものである必要はない。The present invention is not limited to the embodiment of the above embodiment, but can be variously modified and adopted within the scope of the constitution described in each claim. For example, the upper pavement does not necessarily have to be formed of permeable asphalt, but can be formed of permeable concrete, and the upper pavement does not necessarily have to have a water permeable function.
【００２３】また、この発明は、廃棄物処分場に限定さ
れることなく、ゴルフ場のウォーターハザード、簡易貯
水池、溜池若しくはプール等の凹所に水を貯留する施設
など、その他の貯留施設の底部地盤を覆って設置するこ
ともできる。Further, the present invention is not limited to a waste disposal site, but can be applied to the bottom of other storage facilities, such as a facility for storing water in a recess such as a water hazard, a simple reservoir, a reservoir, or a pool of a golf course. It can be installed over the ground.
【００２４】[0024]
【発明の効果】以上詳細に説明したように、この発明の
遮水構造によれば、遮水シートと、該遮水シートをサン
ドイッチ状に挟み込む上側舗装及び下側舗装とを含んで
構成されるので、上側舗装及び下側舗装の強度や耐久性
によって、廃棄物中の突起物等による外力を受けたり廃
棄物や保護砂等を敷き均すべく上方で重機が走行あるい
は旋回する場合でも、遮水構造に破損が生じるのを容易
に回避することができるとともに、遮水シートの変形追
従性によって、遮水構造が大きな変形を受けた場合でも
その遮水機能を容易に保持することができる。As described in detail above, according to the water-blocking structure of the present invention, the water-blocking sheet includes the upper and lower pavements sandwiching the water-blocking sheet in a sandwich shape. Therefore, depending on the strength and durability of the upper pavement and lower pavement, even when heavy equipment runs or turns upward due to external force due to projections in the waste or to spread the waste and protective sand, etc. Damage to the water structure can be easily avoided, and the water-blocking sheet can easily maintain its water-blocking function due to the deformation followability of the water-blocking sheet even when the water-blocking structure is greatly deformed.
【００２５】また、上側舗装を透水性舗装によって構成
すれば、特に廃棄物処分場において、貯留施設の底部を
面排水層とすることができ、これによって廃棄物等から
の浸出水を効率良く集排水することができる。Further, if the upper pavement is made of a permeable pavement, the bottom of the storage facility can be made into a surface drainage layer, particularly in a waste disposal site, whereby the leachate from the waste and the like can be efficiently collected. Can be drained.
【図１】この発明の一実施例にかかる遮水構造を採用し
た廃棄物処分場を説明する略示断面図である。FIG. 1 is a schematic sectional view illustrating a waste disposal site employing a water-blocking structure according to one embodiment of the present invention.
【図２】この発明の一実施例にかかる遮水構造の構成を
示す、図１のＡ部拡大図である。FIG. 2 is an enlarged view of a portion A in FIG. 1 showing a configuration of a water shielding structure according to one embodiment of the present invention.
１０ 遮水構造 １１ 廃棄物処分場 １２ 遮水シート １３ 水密性アスファルト層（下側舗装） １４ 透水性アスファルト層（上側舗装） １５ 路盤 ２０ 底部地盤 ２１ 廃棄物 DESCRIPTION OF SYMBOLS 10 Water-blocking structure 11 Waste disposal site 12 Water-blocking sheet 13 Watertight asphalt layer (lower pavement) 14 Water-permeable asphalt layer (upper pavement) 15 Roadbed 20 Bottom ground 21 Waste
Claims (2)
部地盤を覆って設置されて、内部の貯留水や汚水が外部
に流出するのを防止するための遮水構造であって、遮水
シートと、該遮水シートをサンドイッチ状に挟み込む上
側舗装及び下側舗装とを含むことを特徴とする遮水構
造。Claims: 1. A water-blocking structure that is installed over the bottom ground of a storage facility such as a waste disposal site or a reservoir to prevent internal stored water or sewage from flowing out. A water shielding structure comprising: a water sheet; and upper and lower pavements sandwiching the water shielding sheet in a sandwich shape.
されることを特徴とする請求項１に記載の遮水構造。2. The impermeable structure according to claim 1, wherein the upper pavement is constituted by a permeable pavement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01064297A JP3518225B2 (en) | 1997-01-23 | 1997-01-23 | Impermeable structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01064297A JP3518225B2 (en) | 1997-01-23 | 1997-01-23 | Impermeable structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10202217A true JPH10202217A (en) | 1998-08-04 |
| JP3518225B2 JP3518225B2 (en) | 2004-04-12 |
Family
ID=11755878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01064297A Expired - Lifetime JP3518225B2 (en) | 1997-01-23 | 1997-01-23 | Impermeable structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3518225B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001240444A (en) * | 2000-02-29 | 2001-09-04 | Ohbayashi Corp | Impervious paving material and paving method |
-
1997
- 1997-01-23 JP JP01064297A patent/JP3518225B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001240444A (en) * | 2000-02-29 | 2001-09-04 | Ohbayashi Corp | Impervious paving material and paving method |
| JP4572437B2 (en) * | 2000-02-29 | 2010-11-04 | 株式会社大林組 | Impermeable paving material and paving method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3518225B2 (en) | 2004-04-12 |
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