JPH0788454A - Waste disposal method and plant at seaside - Google Patents

Waste disposal method and plant at seaside

Info

Publication number
JPH0788454A
JPH0788454A JP5238303A JP23830393A JPH0788454A JP H0788454 A JPH0788454 A JP H0788454A JP 5238303 A JP5238303 A JP 5238303A JP 23830393 A JP23830393 A JP 23830393A JP H0788454 A JPH0788454 A JP H0788454A
Authority
JP
Japan
Prior art keywords
area
closed water
water area
waste
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
Application number
JP5238303A
Other languages
Japanese (ja)
Other versions
JP3364286B2 (en
Inventor
Masataka Hanashima
正孝 花嶋
Akira Maeda
章 前田
Mitsuhiko Ura
満彦 浦
Yoshio Matsumuro
能生 松室
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FUKUDAGUMI KK
Taisei Corp
Ebara Corp
Kajima Corp
Takuma Co Ltd
Kurimoto Ltd
Shimizu Construction Co Ltd
Obayashi Corp
Fujita Corp
Caterpillar Japan Ltd
Subaru Corp
Kobe Steel Ltd
Komatsu Ltd
Kubota Corp
Kuraray Co Ltd
Hitachi Zosen Corp
Mitsui and Co Ltd
Taiyo Kogyo Co Ltd
Takenaka Komuten Co Ltd
Toa Corp
Maeda Corp
Okumura Corp
Toda Corp
Shimizu Corp
Fudo Tetra Corp
Nippon Conveyor Co Ltd
Caterpillar Mitsubishi Ltd
Shinmaywa Industries Ltd
Hazama Ando Corp
Original Assignee
FUKUDAGUMI KK
Taisei Corp
Ebara Corp
Kajima Corp
Hazama Gumi Ltd
Takuma Co Ltd
Kurimoto Ltd
Shimizu Construction Co Ltd
Obayashi Corp
Fujita Corp
Kobe Steel Ltd
Komatsu Ltd
Kubota Corp
Kuraray Co Ltd
Hitachi Zosen Corp
Mitsui and Co Ltd
Taiyo Kogyo Co Ltd
Takenaka Komuten Co Ltd
Toa Corp
Maeda Corp
Shin Meiva Industry Ltd
Okumura Corp
Toda Corp
Shimizu Corp
Fudo Construction Co Ltd
Nippon Conveyor Co Ltd
Caterpillar Mitsubishi Ltd
Fuji Heavy Industries Ltd
Shin Caterpillar Mitsubishi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FUKUDAGUMI KK, Taisei Corp, Ebara Corp, Kajima Corp, Hazama Gumi Ltd, Takuma Co Ltd, Kurimoto Ltd, Shimizu Construction Co Ltd, Obayashi Corp, Fujita Corp, Kobe Steel Ltd, Komatsu Ltd, Kubota Corp, Kuraray Co Ltd, Hitachi Zosen Corp, Mitsui and Co Ltd, Taiyo Kogyo Co Ltd, Takenaka Komuten Co Ltd, Toa Corp, Maeda Corp, Shin Meiva Industry Ltd, Okumura Corp, Toda Corp, Shimizu Corp, Fudo Construction Co Ltd, Nippon Conveyor Co Ltd, Caterpillar Mitsubishi Ltd, Fuji Heavy Industries Ltd, Shin Caterpillar Mitsubishi Ltd filed Critical FUKUDAGUMI KK
Priority to JP23830393A priority Critical patent/JP3364286B2/en
Publication of JPH0788454A publication Critical patent/JPH0788454A/en
Application granted granted Critical
Publication of JP3364286B2 publication Critical patent/JP3364286B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Processing Of Solid Wastes (AREA)

Abstract

PURPOSE:To provide a waste disposal plant to a seaside region and to prevent the polluted water eluted from waste from exuding to the circumferential sea area. CONSTITUTION:Partition walls 1 vertically provided from the foundation E of the sea bottom so as to protrude from the surface of the sea in order to demarcate a closed water area A to the construction scheduled sea area of a waste disposal plant 10, the floor panel 2 covering the upper opening of the closed water area A, the drain pump 3 draining the polluted water in the closed sea area A to the outside, a water supply pump 6 being a water supply means supplying water into the closed water area A and waste water treating facilities 7 for purifying the polluted water discharged by the drain pump 3 are provided. By this constitution, the difference between the water level WL1 in the closed water area A and the seawater level WL outside the closed water area is kept constant and drained polluted water is purified.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、廃棄物処分方法及び
廃棄物処分場に関し、特に、臨海における廃棄物処分方
法及び廃棄物処分場に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste disposal method and a waste disposal site, and more particularly to a waste disposal method and a waste disposal site at the seaside.

【0002】[0002]

【従来の技術】従来、廃棄物、例えば廃棄物焼却炉から
排出される焼却灰等を処分する方法として、山間部の谷
間に廃棄物処分場を構築し廃棄物を投棄する方法が挙げ
られる。ところで、この山間部を利用した廃棄物処分場
にあっては、土地収用の問題や、地形的・地理的な制約
を受けて大容量の造成場所の確保が難しいという問題が
あった。
2. Description of the Related Art Conventionally, as a method of disposing of waste, for example, incinerated ash discharged from a waste incinerator, there is a method of constructing a waste disposal site in a valley in a mountainous area and disposing of the waste. By the way, in the waste disposal site using this mountainous area, there was a problem of land expropriation and it was difficult to secure a large capacity site due to topographical and geographical restrictions.

【0003】これに対し、所定海域に仕切壁を立設して
廃棄物処分場を構築し、この廃棄物処分場に廃棄物を処
分する方法が考えられる。この方法によれば海上を広く
利用できるため廃棄物処分場の造成場所の確保が容易で
ある。
On the other hand, a method is conceivable in which a partition wall is erected in a predetermined sea area to construct a waste disposal site, and the waste is disposed at this waste disposal site. According to this method, since the sea can be widely used, it is easy to secure the construction site of the waste disposal site.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、上記し
た臨海に設けられた廃棄物処分場に廃棄物を投棄する方
法では、廃棄物から溶出する汚水が仕切壁間から浸出し
たり、或いは海底地盤を浸透する等して、仕切壁を構築
するだけで処分場内外を完全に遮断することが困難であ
り、投棄された廃棄物から溶出する汚水が廃棄物処分場
外へ滲出して周囲の海域を汚染する惧れがあった。
However, in the method of dumping wastes to the above-mentioned landfill waste disposal site, wastewater leaching out of the wastes seeps out between the partition walls or the seabed ground. It is difficult to completely block the inside and outside of the disposal site simply by constructing a partition wall by infiltrating, and the sewage eluted from the discarded waste seeps out of the waste disposal site and contaminates the surrounding sea area. There was a fear of doing it.

【0005】また、投棄された廃棄物が飛散したり、廃
棄物から発生する悪臭により周囲の環境に悪影響を及ぼ
すなどの問題が懸念される。
Further, there is a concern that the discarded waste may be scattered, or the odor generated from the waste may adversely affect the surrounding environment.

【0006】この発明は以上の点に着目してなされたも
のであってその目的は、廃棄物処分場を所定海域に造成
するとともに、廃棄物から溶出する汚水が周囲の海域を
汚染することを防止する廃棄物の処分方法を提供するこ
とにある。
The present invention has been made in view of the above points, and an object thereof is to construct a waste disposal site in a predetermined sea area and to contaminate the surrounding sea area with waste water eluted from the waste. It is to provide a method of disposing of waste to prevent.

【0007】また、本発明の他の目的は、臨海地域にあ
って廃棄物を投棄する廃棄物処分場の上部を有効利用す
るとともに、投棄された廃棄物が与える悪影響を防止で
きる廃棄物処分場を提供することにある。
Another object of the present invention is to effectively use the upper part of a waste disposal site in a coastal area where waste is dumped and to prevent adverse effects of the discarded waste. To provide.

【0008】[0008]

【課題を解決するための手段】本発明は前記目的を達成
するため成されたものであり、その要旨は、所定海域に
閉鎖水域を画成し、この閉鎖水域の内部に廃棄物を投棄
するとともに、前記閉鎖水域内の汚水位を該閉鎖水域外
の海水位より低く保つようにしたものである。
The present invention has been made to achieve the above object, and its gist is to define a closed water area in a predetermined sea area and dispose of wastes inside the closed water area. At the same time, the dirty water level in the closed water area is kept lower than the sea water level outside the closed water area.

【0009】また、本発明の他の要旨は、廃棄物を投棄
するための閉鎖水域を所定海域に画成するため海底から
海水面上に立設される仕切壁と、この仕切壁によって画
成された閉鎖水域の上部開口を覆う床版と、前記閉鎖水
域内の汚水位を該閉鎖水域外の海水位より低く保つため
に該閉鎖水域内の汚水を該閉鎖水域外に浄化して排水す
る排水手段とから構成されるものである。
Another object of the present invention is to partition a closed water area for discarding waste into a predetermined sea area from a sea bottom to a sea surface, and to define the partition wall by this partition wall. A slab covering the upper opening of the closed water area, and purifying and discharging the waste water in the closed water area to the outside of the closed water area to keep the waste water level in the closed water area lower than the seawater level outside the closed water area. It is composed of drainage means.

【0010】[0010]

【作用】以上の廃棄物処分方法によれば、閉鎖水域内の
汚水位を周囲の海水位よりも低く保つことにより、閉鎖
水域外の水圧に対し内部の水圧が常時低く保たれるの
で、閉鎖水域内部に投棄された廃棄物から溶出した汚水
は外部に滲出することがない。
[Function] According to the above waste disposal method, by keeping the sewage level in the closed water area lower than the surrounding seawater level, the internal water pressure is always kept lower than the water pressure outside the closed water area. The sewage that is eluted from the waste dumped inside the water area does not seep outside.

【0011】また、上記の廃棄物処分場では、前記した
ように汚水の滲出を防止することができるとともに、汚
水を浄化する手段を備えているため汚水を閉鎖水域外に
排水しても周囲の環境を汚染することがない。さらに
は、仕切壁で画成された閉鎖水域の上部開口を床版で覆
っているため閉鎖水域に廃棄物を投棄しつつ床版の上部
を有効に利用できるとともに、廃棄物が周囲の環境に与
える悪影響を防止することができる。
Further, in the above-mentioned waste disposal site, as described above, the sewage can be prevented from seeping out, and since the sewage is provided with a means for purifying the sewage, even if the sewage is discharged outside the closed water area, Does not pollute the environment. Furthermore, since the upper opening of the closed water area defined by the partition wall is covered with the floor slab, the upper part of the floor slab can be effectively used while dumping the waste into the closed water area, and the waste can be used in the surrounding environment. It is possible to prevent adverse effects.

【0012】[0012]

【実施例】以下、この発明の一実施例を図面を用いて詳
細に説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

【0013】図1はこの発明に係る廃棄物処分場10に
廃棄物を処分する概念図を示すものである。
FIG. 1 is a conceptual diagram of disposal of waste in a waste disposal site 10 according to the present invention.

【0014】廃棄物処分場10の構築予定海域に閉鎖水
域Aを画成し、この閉鎖水域Aの内部に廃棄物を投棄す
る。このとき、閉鎖水域A内の汚水位WL1を閉鎖水域
A外の海水位WLよりも低く保つことにより、閉鎖水域
A外の水圧に対し内部の水圧が常時低く保たれるので、
内部に投棄された廃棄物から溶出した汚水は閉鎖水域A
外部に滲出することがない。
A closed water area A is defined in the sea area where the waste disposal site 10 is to be constructed, and waste is dumped inside the closed water area A. At this time, by keeping the sewage water level WL1 in the closed water area A lower than the sea water level WL outside the closed water area A, the internal water pressure is always kept low with respect to the water pressure outside the closed water area A.
Sewage released from the waste dumped inside is a closed water area A
Does not seep outside.

【0015】また、この発明に係る廃棄物処分場10
は、廃棄物処分場10の構築予定海域に閉鎖水域Aを画
成するため海底地盤Eから海水面上に立設される仕切壁
1と、この仕切壁1により画成された閉鎖水域Aの上部
開口を覆うための床版2と、閉鎖水域A内の汚水を排水
する排水手段である排水ポンプ3と排水処理施設7とか
ら概略構成されている。
Also, the waste disposal site 10 according to the present invention.
Is a partition wall 1 that is erected on the sea surface from the seabed E to define the closed water area A in the sea area where the waste disposal site 10 is to be constructed, and the closed water area A defined by the partition wall 1. The floor slab 2 for covering the upper opening, a drainage pump 3 which is a drainage means for draining the wastewater in the closed water area A, and a wastewater treatment facility 7 are roughly configured.

【0016】仕切壁1は、二重の矢板間に砂および粘土
等を詰めて水密性を確保する一般的な二重矢板構造を成
しており、閉鎖水域の外郭に沿って設けられた改良地盤
4を貫通して打設されているとともにマウンド5により
支持されている。
The partition wall 1 has a general double sheet pile structure in which sand and clay are packed between the double sheet piles to ensure watertightness, and is an improvement provided along the outer contour of the closed water area. It is placed through the ground 4 and is supported by the mound 5.

【0017】また、床版2は、例えば、プレキャストコ
ンクリート板等を構造杭6によって下方より支持して構
築される。この床版2を廃棄物の投棄に先立って構築す
ることにより、閉鎖水域Aが廃棄物で埋め立てられるの
を待つことなく、床版2の構築後直ちにその上部を人工
地盤として先行利用できる。
The floor slab 2 is constructed, for example, by supporting a precast concrete plate or the like from below by structural piles 6. By constructing the floor slab 2 prior to dumping the waste, the upper portion of the floor slab 2 can be immediately used as artificial ground immediately after the floor slab 2 is constructed without waiting for the closed water area A to be filled with the waste.

【0018】閉鎖水域A内部の汚水位WL1は、この実
施例では、床版2の上部に設けられた排水手段である排
水ポンプ3により閉鎖水域A周囲の海水位WLよりも所
定水位差をもって低く保つようにされている。ここで、
所定水位差とは閉鎖水域A内の汚水が外部へ滲出するの
を防止するのに十分な水圧差を生じさせる程度のもので
あるとともに、仕切壁1が外部からの水圧により転倒若
しくは海底地盤Eに対する滑動を防止できる程度に、仕
切壁1を閉鎖水域A内の水圧によって対抗支持し得る水
位を維持した水位差である。
In this embodiment, the wastewater level WL1 inside the closed water area A is lower than the seawater level WL around the closed water area A by a predetermined water level by the drainage pump 3 which is a drainage means provided on the upper part of the floor slab 2. Is supposed to keep. here,
The predetermined water level difference is a level that causes a sufficient water pressure difference to prevent the sewage in the closed water area A from seeping out to the outside, and the partition wall 1 falls due to water pressure from the outside or the seabed E This is a water level difference that maintains a water level capable of counter-supporting the partition wall 1 by the water pressure in the closed water area A to the extent that the sliding against

【0019】排水ポンプ3は、閉鎖水域A内の汚水を閉
鎖水域A外に排出する排水手段であり、排水ポンプ3に
より排水される汚水を浄化するための排水処理施設7を
備えている。また、床版2上には閉鎖水域A内に給水す
る給水ポンプ8が設置されており、これらの設備によっ
て、閉鎖水域A内外の海水位の変動に追従して適宜排水
・給水を行い閉鎖水域A内の水位WL1と閉鎖水域外の
水位WLとの水位差を一定に保つ。そして、排水ポンプ
3によって排水される汚水は排水処理施設7によって浄
化されるため周囲の環境を汚染することがない。
The drainage pump 3 is a drainage means for discharging the wastewater in the closed water area A to the outside of the closed water area A, and is provided with a wastewater treatment facility 7 for purifying the wastewater discharged by the drainage pump 3. In addition, a water supply pump 8 for supplying water into the closed water area A is installed on the floor slab 2, and these facilities appropriately drain and supply water in accordance with the fluctuation of the sea level inside and outside the closed water area A. The water level difference between the water level WL1 in A and the water level WL outside the closed water area is kept constant. Then, since the wastewater discharged by the drainage pump 3 is purified by the wastewater treatment facility 7, it does not pollute the surrounding environment.

【0020】次に、このように構成された廃棄物処分場
10の構築手順を説明する。まず、得ようとする廃棄物
処分場10の構築予定箇所の外郭に沿って海底地盤E内
を不透水層E1 に至る深度まで地盤改良を施し、この改
良地盤4上にマウンド5を造成し、次いでこのマウンド
5および改良地盤4を貫通して仕切壁1を打設し閉鎖水
域Aを画成する。改良地盤4を造成するのは閉鎖水域A
の内外における水位差による地盤Eの崩壊および水の浸
透を最少限に抑さえるためであり、またマウンド5を造
成するのは仕切壁1の構造を簡単にするために行われ
る。
Next, the procedure for constructing the waste disposal site 10 thus constructed will be described. First, along the outline of the planned construction site of the waste disposal site 10 to be obtained, the ground is improved in the seabed E to a depth reaching the impermeable layer E1, and the mound 5 is formed on the improved ground 4. Then, the partition wall 1 is pierced through the mound 5 and the improved ground 4 to define the closed water area A. The improved ground 4 is created by closed water area A
This is to minimize the collapse of the ground E and the penetration of water due to the water level difference between inside and outside of the building, and to form the mound 5 to simplify the structure of the partition wall 1.

【0021】なお、この仕切壁1は、二重矢板構造の他
に、船舶あるいは流木などの衝突による外力に対し内部
の密閉性が守られる剛性杭構造としてもよい。
In addition to the double sheet pile structure, the partition wall 1 may have a rigid pile structure in which the internal hermeticity is protected against an external force caused by a collision of a ship or driftwood.

【0022】次いで閉鎖水域A内において、複数の鋼管
杭等の構造杭6を縦横マトリックス状の配列で海底地盤
E内に打設する。各構造杭6は、床版2に対する支持強
度を確保するものであり、このために海底地盤Eの下部
の不透水層E1 を貫通する深さであって、支持強度を確
保するのに十分な間隔で配列される。なお、該当する打
設深度までに不透水層E1 が存在しない場合はこの部位
を予め地盤改良を施し人工的不透水層を造成しておくこ
ともできる。
Next, in the closed water area A, a plurality of structural piles 6 such as steel pipe piles are driven in the seabed ground E in an array of vertical and horizontal matrices. Each of the structural piles 6 secures the supporting strength for the floor slab 2, and therefore has a depth that penetrates the impermeable layer E1 below the seabed S and is sufficient to secure the supporting strength. It is arranged at intervals. If the impermeable layer E1 does not exist up to the corresponding casting depth, it is also possible to make a ground improvement in this part in advance to form an artificial impermeable layer.

【0023】次いで仕切壁1および構造杭6の頂部に床
版2を配置して蓋をすれば、床版2を人工地盤とする廃
棄物処分場10を完成する。
Then, the floor slab 2 is placed on top of the partition wall 1 and the structural pile 6 and covered with a lid to complete the waste disposal site 10 using the floor slab 2 as artificial ground.

【0024】完成した廃棄物処分場10には廃棄物処理
のための種々の付帯施設が設けられる。この付帯施設は
図示しない運搬船からの受入ヤード、投棄ピット、内部
におけるコンベアなどの運搬設備、監理棟、また必要に
応じて排気浄化設備等廃棄物処理のための各種必要施設
等である。
The completed waste disposal site 10 is provided with various incidental facilities for waste disposal. This ancillary facility is a receiving yard from a carrier (not shown), a dumping pit, a transportation facility such as a conveyor inside, a supervision wing, and various necessary facilities for waste treatment such as exhaust gas purification facility if necessary.

【0025】さらに、排水ポンプ3、排水処理設備7及
び給水ポンプ8の設置にあたっては、以下の計測結果に
基づいてその仕様が決定される。
Further, when the drainage pump 3, the wastewater treatment facility 7 and the water supply pump 8 are installed, their specifications are determined based on the following measurement results.

【0026】構築完了直後の廃棄物処分場10の内部の
汚水位WL1 は周囲の海水位WLとほぼ同等であるが、
排水ポンプ3によって内部の汚水を排水することによっ
て汚位WL1 を周囲の海水位WL水位より低く保たれ
る。例えばほぼ一ケ月程度この状態で放置しつつ内部の
水位変動を計測し、この計測結果に応じて水位差を一定
に保つための排水ポンプ3、排水処理施設7及び給水ポ
ンプ8の仕様が決定され、これに応じて、それぞれの施
設の動力を補正するとともに設備の容量を越える場合に
は新たな設備が設置されることになる。
Although the wastewater level WL1 inside the waste disposal site 10 immediately after the completion of construction is almost equal to the surrounding seawater level WL,
By draining the wastewater inside by the drainage pump 3, the wastewater level WL1 is kept lower than the surrounding seawater level WL water level. For example, the specifications of the drainage pump 3, the drainage treatment facility 7, and the water supply pump 8 for keeping the water level difference constant while measuring the internal water level fluctuation while leaving it in this state for about one month are determined. According to this, if the power of each facility is corrected and the capacity of the facility is exceeded, new equipment will be installed.

【0027】以上の付帯施設の設置が完了したならば、
廃棄物処分場10の閉鎖水域Aを廃棄物投棄のための処
分場として稼動させることができ、順次廃棄物が閉鎖水
域A内部に投棄され埋め立てられる。この処理容積は海
底地盤Eの表面から床版2の内側にまでの高さと仕切壁
1によって構成される内部面積との積であり、大規模廃
棄物処分場10であるならばその造成面積と海底までの
深さに応じて、使用年限を十分に確保でき、また廃棄物
の散乱も防止できる。
When the installation of the above incidental facilities is completed,
The closed water area A of the waste disposal site 10 can be operated as a disposal site for waste disposal, and the waste materials are sequentially dumped into the closed water area A and landfilled. This treatment volume is the product of the height from the surface of the seabed E to the inside of the floor slab 2 and the internal area formed by the partition wall 1, and if it is a large-scale waste disposal site 10, its area of construction. Depending on the depth to the seabed, it is possible to secure a sufficient period of use and prevent scattering of waste.

【0028】そして、処分場として用いられている間排
水ポンプ3及び給水ポンプ8を駆動することにより閉鎖
水域Aの外部の水圧に対し、内部の水圧が常時低く保た
れるので、閉鎖水域A内部に投棄される廃棄物から溶出
した汚水は外部に滲出することなく、また排水される汚
水は排水処理設備7を通じて重金属イオンその他の有害
物質を除去された状態で外部に排水されるため、海中汚
染も防止することができる。
By driving the drainage pump 3 and the water supply pump 8 while being used as a disposal site, the internal water pressure is always kept lower than the external water pressure of the closed water area A. The sewage eluted from the waste dumped in the sewage does not exude to the outside, and the drained sewage is discharged to the outside with heavy metal ions and other harmful substances removed through the wastewater treatment facility 7, which results in sea pollution. Can also be prevented.

【0029】なお、閉鎖水域A内外の水圧差により水の
流れは常時内部側に向かうため、周辺土層は将来的に細
かい土粒子により目詰りを起こし、周囲がより完全な不
透水層になり、遮蔽が完全に行われることも期待でき
る。
Since the water flow always goes to the inner side due to the water pressure difference between the inside and outside of the closed water area A, the surrounding soil layer will be clogged with fine soil particles in the future, and the surrounding area will become a more impermeable layer. It can be expected that the shielding will be completely performed.

【0030】さらに床版2の上部は当該廃棄物処分場に
おける人工地盤として用いられるので、前述の廃棄物処
理のための付帯施設の他にコンテナヤードや、当該廃棄
物処分場が海底トンネル、橋等を通じて陸上と接続して
いる場合はトラックターミナル等の敷地として有効利用
できる。
Further, since the upper part of the floor slab 2 is used as an artificial ground at the waste disposal site, in addition to the above-mentioned incidental facility for waste disposal, the container yard and the waste disposal site are undersea tunnels and bridges. When it is connected to the land through such means, it can be effectively used as a site for a truck terminal or the like.

【0031】[0031]

【発明の効果】以上実施例によって詳細に説明したよう
に、この発明にかかる廃棄物処分方法では、閉鎖水域内
の汚水位を周囲の海水位よりも低く保つことにより、閉
鎖水域外部の水圧に対し、内部の水圧が常時低く保たれ
るので、閉鎖水域内部に投棄する廃棄物からの溶出した
汚水は外部に滲出することがない。
As described above in detail with reference to the embodiments, in the waste disposal method according to the present invention, by keeping the sewage level in the closed water area lower than the surrounding seawater level, the water pressure outside the closed water area is reduced. On the other hand, since the internal water pressure is always kept low, the sewage discharged from the waste dumped inside the closed water area does not seep outside.

【0032】また、本発明にかかる廃棄物処分場では、
前記したように汚水の滲出を防止することができるとと
もに、汚水を浄化する手段を備えているため汚水を閉鎖
水域外部に排水する場合であっても周囲の環境を汚染す
ることがない。さらには、仕切壁によって画成される水
域の上部開口を床版で覆っているため閉鎖水域に廃棄物
を投棄しつつ床版の上部を有効に利用できるとともに、
廃棄物が周囲の環境に与える悪影響を防止することがで
きる。
In the waste disposal site according to the present invention,
As described above, the sewage can be prevented from seeping out, and since the sewage is provided with a means for purifying the sewage, the surrounding environment is not polluted even when the sewage is discharged outside the closed water area. Furthermore, since the upper opening of the water area defined by the partition wall is covered with the floor slab, the upper part of the floor slab can be effectively used while dumping waste into the closed water area.
It is possible to prevent adverse effects of waste on the surrounding environment.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明による廃棄物処分場を示す断面図であ
る。
FIG. 1 is a sectional view showing a waste disposal site according to the present invention.

【符号の説明】[Explanation of symbols]

1 仕切壁 2 床版 3 排水ポンプ 7 排水処理施設 A 閉鎖水域 WL 周囲海水位 WL1 汚水位 1 Partition wall 2 Floor slab 3 Drainage pump 7 Wastewater treatment facility A Closed water area WL Surrounding seawater level WL1 Sewage level

───────────────────────────────────────────────────── フロントページの続き (71)出願人 000001373 鹿島建設株式会社 東京都港区元赤坂1丁目2番7号 (71)出願人 000001052 株式会社クボタ 大阪府大阪市浪速区敷津東一丁目2番47号 (71)出願人 000001085 株式会社クラレ 岡山県倉敷市酒津1621番地 (71)出願人 000142595 株式会社栗本鐵工所 大阪府大阪市西区北堀江1丁目12番19号 (71)出願人 000001199 株式会社神戸製鋼所 兵庫県神戸市中央区脇浜町1丁目3番18号 (71)出願人 000001236 株式会社小松製作所 東京都港区赤坂二丁目3番6号 (71)出願人 000002299 清水建設株式会社 東京都港区芝浦一丁目2番3号 (71)出願人 000190297 新キャタピラー三菱株式会社 東京都世田谷区用賀四丁目10番1号 (71)出願人 000002358 新明和工業株式会社 兵庫県西宮市小曾根町1丁目5番25号 (71)出願人 000206211 大成建設株式会社 東京都新宿区西新宿一丁目25番1号 (71)出願人 000204192 太陽工業株式会社 大阪府大阪市淀川区木川東4丁目8番4号 (71)出願人 000133032 株式会社タクマ 大阪府大阪市北区堂島浜1丁目3番23号 (71)出願人 000003621 株式会社竹中工務店 大阪府大阪市中央区本町4丁目1番13号 (71)出願人 000219406 東亜建設工業株式会社 東京都千代田区四番町5 (71)出願人 000166432 戸田建設株式会社 東京都中央区京橋1丁目7番1号 (71)出願人 000228707 日本コンベヤ株式会社 大阪府大東市緑が丘2丁目1番1号 (71)出願人 000140982 株式会社間組 東京都港区北青山2丁目5番8号 (71)出願人 000005119 日立造船株式会社 大阪府大阪市此花区西九条5丁目3番28号 (71)出願人 000154565 株式会社福田組 新潟県新潟市一番堀通町3番地10 (71)出願人 000005348 富士重工業株式会社 東京都新宿区西新宿一丁目7番2号 (71)出願人 000112668 株式会社フジタ 東京都渋谷区千駄ヶ谷四丁目6番15号 (71)出願人 000236610 不動建設株式会社 大阪府大阪市中央区平野町四丁目2番16号 (71)出願人 000201478 前田建設工業株式会社 東京都千代田区富士見2丁目10番26号 (71)出願人 000005913 三井物産株式会社 東京都千代田区大手町1丁目2番1号 (72)発明者 花嶋 正孝 福岡県福岡市城南七隈5−5−6 (72)発明者 前田 章 東京都千代田区神田司町2丁目3番地 株 式会社大林組東京本社内 (72)発明者 浦 満彦 東京都港区元赤坂1丁目2番7号 鹿島建 設株式会社内 (72)発明者 松室 能生 東京都千代田区四番町5 東亜建設工業株 式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 000001373 Kashima Construction Co., Ltd. Moto Akasaka 1-2-7, Minato-ku, Tokyo (71) Applicant 000001052 Kubota Co., Ltd. 1-2 Shishizu-higashi, Naniwa-ku, Osaka-shi, Osaka No. 47 (71) Applicant 000001085 Kuraray Co., Ltd. 1621 Sakata, Kurashiki-shi, Okayama Prefecture (71) Applicant 000142595 Kurimoto Iron Works Co., Ltd. 1-12-19 Kitahori, Nishi-ku, Osaka-shi, Osaka (71) Applicant 000001199 Kobe Steel, Ltd. 1-318 Wakihama-cho, Chuo-ku, Kobe-shi, Hyogo (71) Applicant 000001236 Komatsu Ltd. 2-3-6 Akasaka, Minato-ku, Tokyo (71) Applicant 000002299 Shimizu Corporation 1-3-2 Shibaura, Minato-ku, Tokyo (71) Applicant 000190297 New Caterpillar Mitsubishi Corp. 4-10-1 Yoga, Setagaya-ku, Tokyo (71) Applicant 00 0002358 Shinmeiwa Industry Co., Ltd. 1-5-25, Ozone, Nishinomiya-shi, Hyogo (71) Applicant 000206211 Taisei Corporation Ltd. 1-25-1 Nishishinjuku, Shinjuku-ku, Tokyo (71) Applicant 000204192 Taiyo Kogyo Co., Ltd. 4-8-4 Kikawahigashi, Yodogawa-ku, Osaka-shi, Osaka (71) Applicant 000133032 Takuma Co., Ltd. 1-323 Dojimahama, Kita-ku, Osaka-shi, Osaka (71) Applicant 000003621 Takenaka Corporation Osaka, Osaka 4-11-13 Honmachi, Chuo-ku, Japan (71) Applicant 000219406 Toa Construction Industry Co., Ltd. 5 Yonban-cho, Chiyoda-ku, Tokyo (71) Applicant 000166432 Toda Construction Co., Ltd. 1-17-1 Kyobashi, Chuo-ku, Tokyo (71) Applicant 000228707 Nippon Conveyor Co., Ltd. 2-1-1 Midorigaoka, Daito City, Osaka Prefecture (71) Applicant 000140982 2-5-8 Kita-Aoyama, Minato-ku, Tokyo (71) Applicant 000005119 Hitachi Zosen Corporation Company Osaka Prefecture Osaka City Konohana Ward Nishikujo 5-chome 3-28 (71) Applicant 000154 565 Fukuda Gumi Co., Ltd. 3-3 Ichibanhori-doricho, Niigata City, Niigata Prefecture (71) Applicant 000005348 Fuji Heavy Industries Ltd. 1-7-2 Nishishinjuku, Shinjuku-ku, Tokyo (71) Applicant 000112668 Fujita Shibuya, Tokyo 4-6-15 Sendagaya-ku (71) Applicant 000236610 Fudo Construction Co., Ltd. 4-2-1-16 Hiranocho, Chuo-ku, Osaka-shi, Osaka (71) Applicant 000201478 Maeda Construction Co., Ltd. 2-chome Fujimi, Chiyoda-ku, Tokyo No. 10 26 (71) Applicant 000005913 Mitsui & Co., Ltd. 1-2-1 Otemachi, Chiyoda-ku, Tokyo (72) Inventor Masataka Hanashima 5-5-6 Jonan Nanakuma, Fukuoka City, Fukuoka Prefecture (72) Inventor Maeda Chapter 2-3 Kandajimachi, Chiyoda-ku, Tokyo Incorporated company Obayashi Corporation Tokyo head office (72) Inventor Mitsuhiko Ura 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Matsumuro Nou 5 Toban Construction Industry Co., Ltd. 5 Yonbancho, Chiyoda-ku, Tokyo

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 所定海域に閉鎖水域を画成し、この閉鎖
水域の内部に廃棄物を投棄するとともに、前記閉鎖水域
内の汚水位を該閉鎖水域外の海水位より低く保つように
したことを特徴とする臨海における廃棄物の処分方法。
1. A closed water area is defined in a predetermined sea area, waste is dumped inside the closed water area, and the wastewater level in the closed water area is kept lower than the seawater level outside the closed water area. A method of disposing of waste at the seaside characterized by.
【請求項2】 廃棄物を投棄するための閉鎖水域を所定
海域に画成するため海底から海水面上に立設される仕切
壁と、この仕切壁によって画成された閉鎖水域の上部開
口を覆う床版と、前記閉鎖水域内の汚水位を該閉鎖水域
外の海水位より低く保つために該閉鎖水域内の汚水を該
閉鎖水域外に浄化して排水する排水手段とから構成され
る臨海における廃棄物処分場。
2. A partition wall which is erected above the sea surface from the sea bottom to define a closed water area for dumping waste in a predetermined sea area, and an upper opening of the closed water area defined by the partition wall. A seaside composed of a floor slab to cover and a drainage means for purifying wastewater in the closed water area to the outside of the closed water area and draining it in order to keep the wastewater level in the closed water area lower than the seawater level outside the closed water area. Waste disposal site in.
JP23830393A 1993-09-24 1993-09-24 Waste disposal method and waste disposal site at the seaside Expired - Lifetime JP3364286B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23830393A JP3364286B2 (en) 1993-09-24 1993-09-24 Waste disposal method and waste disposal site at the seaside

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23830393A JP3364286B2 (en) 1993-09-24 1993-09-24 Waste disposal method and waste disposal site at the seaside

Publications (2)

Publication Number Publication Date
JPH0788454A true JPH0788454A (en) 1995-04-04
JP3364286B2 JP3364286B2 (en) 2003-01-08

Family

ID=17028204

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP3364286B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012011351A (en) * 2010-07-02 2012-01-19 Japan Environmental Sanitation Center Stabilization promotion system for water area waste disposal facility
WO2013065137A1 (en) * 2011-11-02 2013-05-10 Akai Kazuaki Deep sediment layer replacement processing method for waste provided in a "hollow water area (utsuro)"
JP2020097820A (en) * 2018-12-17 2020-06-25 鹿島建設株式会社 Construction method of earth retaining wall on slope and construction method of waste disposal site on slope

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012011351A (en) * 2010-07-02 2012-01-19 Japan Environmental Sanitation Center Stabilization promotion system for water area waste disposal facility
WO2013065137A1 (en) * 2011-11-02 2013-05-10 Akai Kazuaki Deep sediment layer replacement processing method for waste provided in a "hollow water area (utsuro)"
JPWO2013065137A1 (en) * 2011-11-02 2015-04-02 一昭 赤井 Waste bottom mud replacement method for waste installed in "UTSURO"
JP2020097820A (en) * 2018-12-17 2020-06-25 鹿島建設株式会社 Construction method of earth retaining wall on slope and construction method of waste disposal site on slope

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