JP2705488B2 - Final disposal site for waste - Google Patents
Final disposal site for wasteInfo
- Publication number
- JP2705488B2 JP2705488B2 JP4295993A JP29599392A JP2705488B2 JP 2705488 B2 JP2705488 B2 JP 2705488B2 JP 4295993 A JP4295993 A JP 4295993A JP 29599392 A JP29599392 A JP 29599392A JP 2705488 B2 JP2705488 B2 JP 2705488B2
- Authority
- JP
- Japan
- Prior art keywords
- disposal site
- waste
- water
- landfill
- final disposal
- 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.)
- Expired - Fee Related
Links
Landscapes
- Revetment (AREA)
- Processing Of Solid Wastes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は廃棄物の最終処分場に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a final disposal site for waste.
【０００２】[0002]
【発明が解決しようとする課題】一般廃棄物の最終処分
場は、埋立地全面に遮水シートを布設して遮水構造とし
たものが多く採用されている。この構造の処分場は、例
えば図４のごとく、堰堤１を作って形成した埋立地２全
面に遮水シート３を布設し、その下層に地下水集水管４
を魚の骨状に配設して構成されている。この地下水集水
管４は処分場を構築した初期の地下水による遮水シート
の浮上りの防止を目的とするが、一方、遮水シート３が
破損した場合には、処分場から出た汚水はこの集水管４
で集水されるので、集水ピット５で検査して汚水流出の
有無を監視するためにも利用されている。In the final disposal site of general waste, a water-impervious sheet is laid on the entire landfill to form a water-impervious structure. For example, as shown in FIG. 4, a disposal site having this structure has a water-impervious sheet 3 laid on the entire landfill 2 formed by forming a dam 1, and a groundwater collecting pipe 4 below the landfill 2.
Are arranged in the shape of a fish bone. The groundwater collecting pipe 4 is intended to prevent floating of the impermeable sheet due to groundwater at the initial stage of construction of the disposal site. On the other hand, if the impermeable sheet 3 is damaged, the sewage discharged from the disposal site will Water collecting pipe 4
Since the water is collected at the water collecting pit 5, the water is collected at the water collecting pit 5 and used to monitor whether or not the wastewater flows out.
【０００３】しかし、上記した従来の処分場では汚水の
流出が地下水集水管により検出されても、埋立地全面が
１つの集水管系からなるので、汚水が漏れる遮水シート
の破損箇所を特定することはできなかった。[0003] However, in the above-mentioned conventional disposal site, even if the outflow of sewage is detected by the groundwater collecting pipe, the entire landfill site is composed of one collecting pipe system. I couldn't do that.
【０００４】この発明は上記問題点に着目しなされたも
のである。その目的は、遮水シートの破損箇所を狭い範
囲に特定でき、特定された狭い範囲を対象として破損部
を補修したり、あるいは覆土して汚水の発生、流出を防
止できる廃棄物の最終処分場を提案するにある。The present invention has been made in view of the above problems. Its purpose is to identify the damaged area of the impermeable sheet in a narrow area, and to repair the damaged area in the specified narrow area, or to cover the soil to prevent the generation and outflow of wastewater, and the final disposal site for waste There is to propose.
【０００５】[0005]
【課題を解決するための手段】この廃棄物の最終処分場
は埋立地全面に遮水シートを布設し遮水構造となした廃
棄物の最終処分場において、埋立地をその底盤部に設け
た地中遮水壁で仕切るとともに地中遮水壁の上部位置の
遮水シート上に区画堰堤を設け、遮水シートを挟んで埋
立地全面を多数の単位区画に分割し、かつ、地下水を集
水する地下水集水管を各単位区画ごとに独立して遮水シ
ートの下層に設けてあることを特徴とする。In the final disposal site of this waste, a landfill is provided at the bottom of the final disposal site of the waste which has a water-impervious structure by laying a water-impervious sheet all over the landfill. Partitioned by the underground impermeable wall, a partition dam is provided on the impermeable sheet above the underground impermeable wall, the entire landfill is divided into a number of unit sections with the impermeable sheet interposed, and groundwater is collected. Groundwater collecting pipes for watering are provided in the lower layer of the impermeable sheet independently for each unit section.
【０００６】[0006]
【実施例】図１，２に示す実施例の廃棄物の最終処分場
は、堰堤１を設け形成した平面視長方形の埋立地２の全
面に遮水シート３を布設してなる。この埋立地２は遮水
シート３の下層の底盤部にコンクリートあるいは粘性土
の地中遮水壁６をつくり、この地中遮水壁６によって８
個の単位区画７に分割してある。遮水シート７の上に、
地中遮水壁６上部位置、即ち、単位区画７，７間の境に
沿い粘性土の区画堰堤８を設けてある。この地中遮水壁
６と区画堰堤８とによって、遮水シート７を挟んで８個
の単位区画７に分割してある。遮水シート７の下層には
単位区画７−１，７−２…７−８のそれぞれに開口し、
集水ピット５に集水する地下水集水管４−１，４−２…
４−８をそれぞれ独立して設けてある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The final disposal site for waste according to the embodiment shown in FIGS. 1 and 2 is constructed by laying a water-impervious sheet 3 over the entire surface of a rectangular reclamation site 2 provided with a bank 1 and formed. In the landfill 2, an underground impermeable wall 6 made of concrete or cohesive soil is formed on the bottom of the lower layer of the impermeable sheet 3, and
It is divided into unit sections 7. On the impermeable sheet 7,
A partition dam 8 of viscous soil is provided above the underground impermeable wall 6, that is, along the border between the unit sections 7. The underground impermeable wall 6 and the partition dam 8 are divided into eight unit sections 7 with the impermeable sheet 7 interposed therebetween. In the lower layer of the water-blocking sheet 7, each of the unit sections 7-1, 7-2,.
Groundwater collecting pipes 4-1 and 4-2 that collect water in the collecting pit 5 ...
4-8 are provided independently of each other.
【０００７】単位区画７−１には、その区画内位置にの
み集水孔９が穿設してある地下水集水管４−１が配管し
てある。この集水管４−１は地中遮水壁６で仕切られた
単位区画７−１下層の地下水のみを集水する独立した集
水系を形成している。同様に他の各単位区画７−２，７
−３…７−８についても、その区画下層の地下水のみを
集水する地下水集水管４−２，４−３…４−８を配管し
て独立した集水系を形成している。The unit section 7-1 is provided with a groundwater collecting pipe 4-1 having a water collecting hole 9 formed only at a position in the unit section 7-1. The water collecting pipe 4-1 forms an independent water collecting system that collects only groundwater below the unit section 7-1 partitioned by the underground impermeable wall 6. Similarly, the other unit sections 7-2, 7
7-8, an independent water collecting system is formed by piping groundwater collecting pipes 4-2, 4-3 ... 4-8 for collecting only groundwater in the lower layer of the section.
【０００８】以上の構成からなるこの発明の処分場は、
複数に分割された単位区画ごとに独立した系統の地下水
集水管が設けてあるので、各地下水集水管の出口からの
排水を検査し、遮水シートの破損等による地下水の異常
が検出された際には、その検出された集水管から、破損
した単位区画を直ちに特定することができる。[0008] The disposal site of the present invention having the above structure is
Since an independent system of groundwater collecting pipes is provided for each of the divided unit sections, drainage from the outlet of each groundwater collecting pipe is inspected, and when groundwater abnormality due to breakage of the impermeable sheet etc. is detected. Then, the damaged unit section can be immediately identified from the detected water collecting pipe.
【０００９】特定された破損した単位区画は埋立廃棄物
の再掘削が可能な場合は、掘削して遮水シート破損部の
補修を行なう。再掘削が不可能な場合は、例えば図３に
示すように区画堰堤８で囲まれた単位区画７内の埋立廃
棄物１０の上に粘性土等による最終覆土１１を施し、汚
水の流出を防止する。If the specified damaged unit section can be re-excavated for landfill waste, it is excavated to repair the damaged portion of the impermeable sheet. When re-excavation is not possible, for example, as shown in FIG. 3, a final covering 11 of viscous soil or the like is applied to the landfill waste 10 in the unit section 7 surrounded by the section dam 8 to prevent runoff of sewage. I do.
【００１０】地中遮水壁６が不透水層まで達している場
合は地下水集水管７の出口バルブを閉じるだけて汚水の
流出を防止できる。When the underground impermeable wall 6 reaches the impermeable layer, the outflow valve of the groundwater collecting pipe 7 can be simply closed to prevent the outflow of sewage.
【００１１】[0011]
【発明の効果】この発明は以上の通りであり、この廃棄
物の最終処分場は、遮水シートが破損するなどして、汚
水が下層の底盤部に流出した場合は、その破損箇所を直
ちに特定でき、かつ、特定された狭い範囲を対象に破損
箇所の補修、あるいは覆土による汚水の発生を防止でき
る。The present invention is as described above. In the final disposal site of this waste, if sewage flows out to the bottom of the lower layer due to breakage of the impermeable sheet, etc. It can be specified, and repair of a damaged portion or generation of sewage due to covering soil can be prevented in the specified narrow range.
【図１】実施例の最終処分場の平面図である。FIG. 1 is a plan view of a final disposal site of an embodiment.
【図２】実施例の最終処分場の縦断面図である。FIG. 2 is a longitudinal sectional view of a final disposal site of the embodiment.
【図３】覆土し汚水の流出を防止した単位区画の縦断面
図である。FIG. 3 is a longitudinal sectional view of a unit section covered with soil to prevent outflow of wastewater.
【図４】(a),(b) は従来の最終処分場の平面図および縦
断面図である。FIGS. 4 (a) and 4 (b) are a plan view and a longitudinal sectional view of a conventional final disposal site.
１…堰堤、２…埋立地、３…遮水シート、４…地下水集
水管、５…集水ピット、６…地中遮水壁、７…単位区
画、８…区画堰堤、９…集水孔、１０…埋立廃棄物、１
１…最終覆土。DESCRIPTION OF SYMBOLS 1 ... dam, 2 ... landfill, 3 ... impermeable sheet, 4 ... groundwater collecting pipe, 5 ... water collecting pit, 6 ... underground impermeable wall, 7 ... unit section, 8 ... section dam, 9 ... water collecting hole , 10 ... landfill waste, 1
1: Final soil cover.
Claims (1)
造となした廃棄物の最終処分場において、埋立地をその
底盤部に設けた地中遮水壁で仕切るとともに地中遮水壁
の上部位置の遮水シート上に区画堰堤を設け、遮水シー
トを挟んで埋立地全面を多数の単位区画に分割し、か
つ、地下水を集水する地下水集水管を各単位区画ごとに
独立して遮水シートの下層に設けてあることを特徴とす
る廃棄物の最終処分場。At a final disposal site for waste having a water-impervious structure by laying a water-impervious sheet over the entire landfill, the landfill is partitioned by an underground water-impervious wall provided at the bottom of the landfill, and underground water-impervious. A partition dam is provided on the impermeable sheet at the upper part of the wall, dividing the entire landfill area into a number of unit sections with the impermeable sheet interposed, and a separate groundwater collecting pipe for collecting groundwater in each unit section. The final disposal site for waste, which is provided below the impermeable sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4295993A JP2705488B2 (en) | 1992-11-05 | 1992-11-05 | Final disposal site for waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4295993A JP2705488B2 (en) | 1992-11-05 | 1992-11-05 | Final disposal site for waste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06142631A JPH06142631A (en) | 1994-05-24 |
| JP2705488B2 true JP2705488B2 (en) | 1998-01-28 |
Family
ID=17827749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4295993A Expired - Fee Related JP2705488B2 (en) | 1992-11-05 | 1992-11-05 | Final disposal site for waste |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2705488B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003001216A (en) * | 2001-06-25 | 2003-01-07 | Hazama Gumi Ltd | Waste final disposal site and seepage detecting method in waste final disposal site |
| JP5648498B2 (en) * | 2011-01-26 | 2015-01-07 | 株式会社大林組 | Drainage device and drainage method of water-impervious structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61109816A (en) * | 1984-11-01 | 1986-05-28 | Ohbayashigumi Ltd | Repairing of water-stop sheet in waste disposal site |
-
1992
- 1992-11-05 JP JP4295993A patent/JP2705488B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06142631A (en) | 1994-05-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19970909 |
|
| LAPS | Cancellation because of no payment of annual fees |