JPH06220825A - Cover sand box and reclamation method using cover sand box - Google Patents

Abstract

PURPOSE:To prevent the pollution of the sea bottom at sea farming site remains, dispose ground wastes in an inner bay or the inner sea having a large depth, and activate the sea area. CONSTITUTION:An iron box 1 having stanchions buryable in the sea bottom can be freely lifted or lowered by lifting devices provided on the stanchions, the box 1 is provided with one or two bottom floor faces 7 horizontally opened or closed in one direction or back and forth, and buoyancy adjusting air tanks 6 are provided on side faces of the box 1. The bottom frame of the box 1 is made of a thick iron plate, steel stanchions 2-5 are erected at a fixed interval, the cover sand box 1 is movably erected by the stanchions 2-5 in the sea area surrounded by sheet-like protectors and concrete wall plates, the lower face of the cover sand box 1 is horizontally opened to discard wastes, and cover sand is covered on the wastes to the thickness of 1.5 (m) or above.

Description

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

【０００１】[0001]

【産業上の利用分野】本発明は海域で魚貝類を養殖する
場合の魚貝の餌滓や魚貝類の糞の処理又は都市廃棄物や
産業廃棄物処理場所として海を使用する場合、海域を汚
染することなく、それらの処理のために覆砂によつて処
理可能な覆砂装置及び該覆砂装置を使用した海域の埋立
工法に関するものである。[Field of Industrial Application] The present invention is applicable to the case where the sea is used as a place for treating fish and shellfish sludge and fish and shellfish dung or for treating municipal waste or industrial waste when cultivating fish and shellfish in the sea. The present invention relates to a sand cover device that can be treated with sand cover for treating them without pollution and a landfill construction method for a sea area using the sand cover device.

【０００２】[0002]

【従来の技術】従来、魚貝類を海で養殖する場合、魚貝
類の餌滓や魚貝類の糞はそのまま何等処理されることが
ないため海底に溜り、海を汚染することになる。また我
国では産業廃棄物や都市廃棄物の捨て場所が次第に少な
くなり、また海中に投棄するにしても漏出する汚水の問
題や護岸工事に莫大な費用が必要であつた。2. Description of the Related Art Conventionally, when fish and shellfish are cultivated in the sea, the fish and shellfish dregs and the fish and shellfish dung are not treated as they are, but they accumulate on the sea floor and pollute the sea. Moreover, in Japan, the places where industrial wastes and municipal wastes are dumped have gradually decreased, and even if they are dumped into the sea, the problem of leaked sewage and the huge amount of money required for revetment work.

【０００３】[0003]

【発明が解決しようとする課題】本発明は海で魚貝類を
養殖する場合の魚貝類の餌滓や魚貝類の糞が海底に溜る
ため、海を汚染から守る問題があり、更に年々増加する
都市廃棄物や産業廃棄物の捨て場所の問題がある。我国
の近海例えば瀬戸内海等に多く存在している水深が深す
ぎて太陽光線が到達せず、魚の自然繁殖や貝類の育たな
い水深の著しく大なる海域が最大波高の少ない内湾や内
海に多く散在する。本発明は栽培漁業地跡の海底の汚染
を防止し、更に内湾や内海を利用して廃棄物を埋立て、
その表面に相当厚さに覆砂をして、浅瀬を造成し、上記
した海底の汚染物や陸上の廃棄物の処理と海域の活性化
を可能ならしめることを目的とするものである。但しこ
の場合の廃棄物は有害物質を含んでいない物に限られ
る。[Problems to be Solved by the Invention] The present invention has a problem of protecting the sea from pollution because the fish and shellfish bait and fish and shellfish dung accumulate on the seabed when aquaculture is performed in the sea. There is a problem of where to dispose of municipal and industrial waste. Many of the waters near Japan, such as the Seto Inland Sea, are too deep for sunlight to reach, and there are many areas of great depth, where natural fish breeding and shellfish do not grow To do. The present invention prevents the pollution of the seabed of the cultivated and fishery land, and further uses the inner bay and the inner sea to reclaim the waste,
The purpose is to cover the surface with sand to a considerable thickness to create shallow water, and to treat the above-mentioned seabed contaminants and land waste and activate the sea area. However, the wastes in this case are limited to those that do not contain harmful substances.

【０００４】[0004]

【課題を解決するための手段】本発明の第１は四隅に海
底に埋設可能な鋼鉄製支柱に鉄製の函が該鋼鉄製支柱に
備え付けられた昇降装置によつて上下自在に昇降可能に
備え付けられ、該函には函の一方向又は函の前後方向に
水平に開閉自在な底部の床面を備え、函の２側面又は４
側面に浮力調整用エアタンクを備え、函の底部の枠組
は、函に砂を収容した場合、支持可能な肉厚の鉄板の枠
組によつて構成されてなることを特徴とする覆砂函であ
り、更にその第２は覆砂函の前後方向及び左右の両側面
方向に水平に開閉自在の床面を函の四辺の下部枠組の上
下に備えてなる上記第１発明記載の覆砂函であり、その
第３は海域の周囲の境界線に廃棄物及び覆砂の流れ防止
用の鋼鉄製の支柱を一定の間隔をへだてて立設し、該鋼
鉄製支柱間に支柱の覆砂表面までの下方には廃棄物の汚
濁物又は汚濁水の流出防止用のシ−ト状プロテクタ−を
張設し、シ−ト状プロテクタ−に接して上方には受け金
で鋼鉄製の支柱に止着されたコンクリ−ト板が張設され
た海域の境界線内に請求項１又は２に記載した移設可能
な覆砂函を四隅の支柱によつて立設して該覆砂函に収容
された廃棄物又は覆砂を覆砂函の下面を水平に開くこと
によつて該海域に投棄して順次該全海域を廃棄物又は覆
砂で埋立て、ついで覆砂を廃棄物の層上1.5m以上の厚さ
に被覆することを特徴とする覆砂函を使用する海域の埋
立工法。に関するものである。The first object of the present invention is to provide steel columns that can be buried in the seabed at the four corners so that iron boxes can be moved up and down freely by a lifting device provided on the steel columns. The box is provided with a floor on the bottom that can be opened and closed horizontally in one direction of the box or in the front-back direction of the box.
A buoyancy adjusting air tank is provided on a side surface, and the framework at the bottom of the box is a sand-covered box characterized by being constituted by a framework of a thick iron plate that can support sand when the box contains sand. The second is the sand-covering box according to the first aspect of the present invention, which is provided with floors that can be opened and closed horizontally in the front-rear direction and the left and right side surfaces of the sand-covering box above and below the lower frame on the four sides of the box. The third is that steel columns for preventing the flow of waste and sand cover are erected at regular intervals at the boundary line around the sea area, and between the steel columns to the surface of the sand cover of the columns. A sheet-like protector for preventing the outflow of polluted water or polluted water from the waste is stretched under the sheet-like protector. The movable cover sand box according to claim 1 or 2 is supported at the four corners within the boundary line of the sea area where the concrete plate is stretched. The waste or sand covered by the sand cover box is dumped in the sea area by horizontally opening the bottom surface of the cover box, and the entire sea area is sequentially treated as waste or cover sand. The method of land reclamation in sea areas using a sand cover box, which is characterized by covering the sand with a thickness of 1.5 m or more on the waste layer. It is about.

【０００５】本発明の立方体の覆砂函の四隅の鋼鉄製支
柱は鋼管でもよく、油圧によつて上下にスライド可能な
らしめる。底部の四側部の肉厚の鉄板は覆砂函の規模に
より0.2 〜２m 程度である。覆砂函は側面が６〜12m の
正方形、高さが約10m の上下に作動する立方体が好適
で、立方体の覆砂函はその四隅の支持鋼管製支柱を支持
軸として油圧によつて上下に垂直に作動し、支柱の下方
の先端は〔図１〕の１−(1) に示す如く海底地盤に埋込
まれる。The steel columns at the four corners of the cubic sand cover of the present invention may be steel pipes, which can be slid up and down by hydraulic pressure. The thick iron plate on the four sides of the bottom is about 0.2 to 2 m depending on the scale of the sand cover box. The sand cover box is preferably a square with sides of 6 to 12 m, and a cube with a height of about 10 m that moves up and down. The cube cover sand box is hydraulically moved up and down by hydraulically using the support steel pipe columns at its four corners as support shafts. It operates vertically and the lower tip of the column is buried in the seabed as shown in 1- (1) of Fig. 1.

【０００６】魚貝類の餌滓や魚貝類の糞が海底に溜り海
底の汚染するのを防止するためには、本発明の覆砂函に
よつて海へ1.5 〜２m 程度の厚さに覆砂するのみでよ
く、都市廃棄物や産業廃棄物の捨て場所に使用するため
には〔図３〕に示す如く内湾や内海の水深の大なる海域
に上記廃棄物を埋立て、その上層を本発明の覆砂函を使
用し、その上層に２m 以上の覆砂を施して浅瀬（−４〜
−７m ）になるように造成することによつて海域の活性
化を計ることが可能である。この場合の埋立護岸には移
設可能な斜め控え杭式鋼管工法を主として使用すると安
価に護岸が構成される。海域周囲の境界線に廃棄物及び
覆砂の流れ防止用の鋼鉄製の支柱間に張設される廃棄物
の汚濁物又は汚濁水の流出防止用の支柱の下方のプロテ
クタ−は海面から海底までに達する帆布製シ−トが好適
で、またその上方の波高の及ぶ水深までの壁板はコンク
リ−ト板、鋼板又は合成樹脂板が好適である。In order to prevent the fish and shellfish bait and the fish and shellfish dung from collecting on the seabed and contaminating the seabed, the sand cover box of the present invention covers the sea to a thickness of about 1.5 to 2 m. In order to use it as a dumping place for municipal waste or industrial waste, the waste is buried in the deep water of the inner bay or inland sea as shown in FIG. The sand cover box is used, and the upper layer is covered with sand cover of 2 m or more, and the shallow water (-4 ~
It is possible to activate the sea area by constructing it to be -7 m). In this case, the revetment seawall can be constructed at low cost by mainly using the slantable pile-type steel pipe construction method that can be relocated. The protector below the column for preventing outflow of waste contaminants or polluted water installed between steel columns for preventing the flow of waste and sand cover at the boundary line around the sea area is from the sea surface to the seabed. It is preferable to use a sheet made of canvas, and a wall plate up to the water depth where the wave height reaches is a concrete plate, a steel plate or a synthetic resin plate.

【０００７】[0007]

【実施例】次に図面によつて本発明を説明する。〔図
１〕は本発明の覆砂函の一実施例の斜視図で側面の四面
が鉄製で10m ×10m×10m の正立方体の函(1) の四隅
に、正立方体の函(1) が上下にスライドする先端が海底
地盤に打込まれ、上端を正立方体の函より上方に出た鋼
管製の正立方体の函の支持軸(2),(3),(4),(5) を設け、
正立方体の函の四方の底枠(8) は覆砂を収容するために
強靭な鋼板製四周の枠組が好適である。正立方体の側面
の２方に浮力調整用エアタンク(6),(6′) を備え、正立
方体の函の下面は油圧によつて水平に開閉自在な床面
(7),(7′) を備えている。正立方体の函(1) は支持軸
(2),(3),(4),(5) によつて油圧により上下にスライドす
るように設置する。函の形態は如何なる立方体でもよ
く、また円筒形でもよいが正立方体が好適に使用され
る。エアタンク（水槽）(6),(6′) は正立方体の函の両
サイドのみならず四面のサイドに設けてもよい。函の浮
力調整能力によつて決定される。〔図１〕の１−(2)は
(イ) 〜(ホ) の断面を示すもので、(10)は油圧ストロ−グ
棒、(9) は山形鋼である。The present invention will be described below with reference to the drawings. [FIG. 1] is a perspective view of an embodiment of a sand-covering box of the present invention. The four side surfaces are made of iron, and a cubic cube box (1) is provided at the four corners of a cubic cube (1) of 10 m × 10 m × 10 m. The support shafts (2), (3), (4), (5) of the square box made of steel pipe with the vertically sliding tip driven into the seabed and the upper end protruding above the cubic box. Provided,
The four-sided bottom frame (8) of the regular cubic box is preferably made of a strong steel plate four-circle frame for containing sand. Buoyancy adjustment air tanks (6), (6 ') are provided on two sides of the cube, and the bottom of the cube is a floor that can be opened and closed horizontally by hydraulic pressure.
It is equipped with (7) and (7 '). Box of square cube (1) is the supporting axis
Install by (2), (3), (4) and (5) to slide up and down by hydraulic pressure. The shape of the box may be any cube or cylindrical shape, but a regular cube is preferably used. The air tanks (water tanks) (6) and (6 ') may be provided not only on both sides of the cubic box but also on the four sides. It is determined by the buoyancy adjustment capability of the box. 1- (2) in [Fig. 1]
The cross sections of (a) to (e) are shown. (10) is a hydraulic stalk rod, and (9) is angle steel.

【０００８】〔図２〕は下面の水平自在に開閉する床面
(7) のほかに鋼板製の左右の両側下方の枠組(8) の下方
に更に水平に開閉自在な床面(7′) を設けて、(7),
(7′) を水平に開いた一実施例の図を示す。左右の枠組
の下方に設けられた床面(7′) は覆砂を施工する海底の
地盤が軟弱な場合、函内の砂厚のため必要以上に力が掛
り、砂を収容した函が海底地盤にめり込み、施工が著し
く困難になるのを防ぐために設けられたものであり、そ
のため函全体の加重が海底地盤に加圧されることがな
く、覆土のめり込み損失を防止する効果を奏する。[0008] [Fig. 2] is a floor surface of the lower surface that can be opened and closed horizontally.
In addition to (7), a floor surface (7 ') that can be opened and closed horizontally is provided below the left and right lower frameworks (8) made of steel plate.
The figure of one example which opened (7 ') horizontally is shown. The floor surface (7 ') provided below the left and right frameworks exerts excessive force due to the thickness of the sand inside the box when the ground on the seabed where the sand is covered is soft, and the box containing sand is below the seabed. It is provided in order to prevent the construction from getting into the ground and becoming extremely difficult to construct. Therefore, the weight of the whole box is not pressed to the seabed ground, and the effect of preventing the cover soil from slipping into the ground is achieved.

【０００９】〔図３〕は本発明の覆砂函(1) を海浜に支
柱(2),(5) によつて上下自在にスライドするように設置
し、廃棄物及び砂積込み船(15)より覆砂箱(1) に廃棄物
(16)又は覆砂(18)を投下して、海底地盤（−40m ）(23)
に水深−２〜−７m (17)まで廃棄物(16)が堆積して、そ
の上に覆砂（敷砂）(18)を２m まで敷設した一実施例の
覆砂函の使用状態を示す図で、(20)油圧モ−タ−船、(2
1)油圧モ−タ−、(22)海底アンカ、(19)は覆砂より＋２
m ある海岸線を示す。[0009] Fig. 3 shows the sand-covered box (1) of the present invention installed on the beach so that it can slide up and down by the columns (2) and (5), and the waste and sand loading ship (15). More waste in the sandbox (1)
(16) or cover sand (18) to drop the seabed (-40m) (23)
The waste (16) is deposited up to a water depth of -2 to -7 m (17) and the covering sand (laying sand) (18) is laid on it up to 2 m. In the figure, (20) hydraulic motor ship, (2
1) Hydraulic motor, (22) Subsea anchor, (19) +2 from sand cover
m Indicates a coastline.

【００１０】〔図４〕は廃棄物埋立個所を示す平面図
で、両岬(28)の間の湾内に海中投棄廃棄物(16)を廃棄す
る区域Ａ，Ｂ，Ｃ，Ｄを設け、投棄船(15)がその出入口
(26)より出入りしてＡ，Ｂ，Ｃ，Ｄ内に廃棄物を投棄す
るようになつている。湾内の最深部は−40mm程度の深さ
がある。湾内のＡ，Ｂ，Ｃ，Ｄの線に〔図５〕に示すよ
うな鋼管を２m ピツチで立てて、簡易護岸(25)とする。
簡易護岸は覆砂がＡ，Ｂ，Ｃ，Ｄ区域内を完了した場合
は撤去しても差支えない。撤去した場合該簡易護岸の材
料は次期埋立場所に転用できる利点がある。[Fig. 4] is a plan view showing a waste landfill site. Areas A, B, C and D for dumping underwater dump waste (16) are provided in the bay between the two capes (28) and dumped. The ship (15) is at the doorway
(26) goes in and out and dumps waste into A, B, C, and D. The deepest part of the bay has a depth of -40 mm. On the A, B, C, D lines in the bay, a steel pipe as shown in [Fig. 5] is erected with a 2m pitch to form a simple revetment (25).
The simple revetment can be removed if the sand cover is completed in the areas A, B, C and D. When removed, there is an advantage that the material of the simple revetment can be diverted to the next landfill site.

【００１１】〔図５〕は廃棄物埋立区域囲い護岸の断面
図を示す。〔図４〕Ａ，Ｂ，Ｃ，Ｄの囲い線に２m のピ
ツチで鋼管(25)、支柱(29)を立設する。鋼管(25)の廃棄
物(16)側には汚濁物又は汚濁水の流出防止用シ−トプロ
テクタ−(33)を下方に、更にコンクリ−ト板(30)をその
上方にそれぞれの鋼管の全長にわたつて張設する。覆砂
の周囲に鋼管(25)の海底に接する個所に長方形のシ−ト
プロテクタ−止め用ブロツク(34)を設ける。FIG. 5 shows a cross-sectional view of a revetment for a waste landfill area. [Fig. 4] Steel pipes (25) and columns (29) are erected on the enclosure lines A, B, C and D with a pitch of 2 m. On the waste (16) side of the steel pipe (25), a sheet protector (33) for preventing the outflow of pollutants or contaminated water is placed below, and further a concrete plate (30) is placed above it. It is stretched over the entire length. A rectangular sheet protector stop block (34) is provided around the sand cover at a position where the steel pipe (25) contacts the seabed.

【００１２】[0012]

【発明の効果】本発明の効果を纏めると下記の通りであ
る。 (1) 本発明の覆砂函を使用することによつて周辺海域の
覆砂が著しく簡単、安価にでき、都市廃棄物、産業廃棄
物の新たな廃棄場所を提供することが可能になつた。 (2) 栽培魚業地跡の魚貝類の餌滓や魚糞による海底の汚
染が本発明の覆砂函を使用して覆砂することによつて、
簡易、安価に防止可能になつた。 (3) 覆砂函の両面又は四面に浮力槽を取付け、浮力槽の
調節と四隅の鋼管に取付けた油圧ポンプとにより、覆砂
函を昇降並びに回転自在ならしめ得られ、覆砂の位置や
高さが自在に選択可能で海浜の如何なる場所でも覆砂工
事ができる利点がある。 (4) 覆砂地域の周囲に護岸設備を設けているが故に工事
中でも覆砂や廃棄物の汚濁物や汚濁水の覆砂地域からの
流出が皆無で、廃棄物の処理による工事周囲の海域を汚
染することがない。 (5) 本発明の覆砂函を使用することにより、廃棄物の埋
立と護岸工事を迅速、安価に遂行することができる。The effects of the present invention are summarized as follows. (1) By using the sand cover box of the present invention, it is possible to remarkably easily and inexpensively cover sand in the surrounding sea area, and it is possible to provide a new disposal site for municipal waste and industrial waste. . (2) The contamination of the seabed by the bait and fish dung of the fish and shellfish of the cultivated fishery land is covered by using the sand cover box of the present invention,
It became possible to prevent easily and cheaply. (3) By attaching buoyancy tanks to both sides or four sides of the sand-covering box and adjusting the buoyancy tank and hydraulic pumps attached to the steel pipes at the four corners, the sand-covering box can be raised and lowered and rotated freely. The height can be freely selected, and there is an advantage that sand covering work can be done at any place on the beach. (4) Since the seawall is installed around the sand cover area, there is no outflow from the sand cover area or the polluted water of the waste and the polluted water during the construction. Never pollute. (5) By using the sand-covered box of the present invention, landfilling of waste and revetment work can be performed quickly and inexpensively.

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

【図１】１−(1) は本発明の覆砂函の一実施例の斜視
図、同１−(2) は同１−(1) 図の(イ) 〜(ホ) の断面図。FIG. 1- (1) is a perspective view of an embodiment of the sand-covered box of the present invention, and FIG. 1- (2) is a sectional view taken along the line (a)-(e) of FIG. 1- (1).

【図２】覆砂函の水平開閉二重底構造の一実施例の斜視
図。FIG. 2 is a perspective view of an embodiment of a horizontally opening / closing double bottom structure of a sand cover box.

【図３】廃棄物埋立用に使用される本発明の覆砂函の使
用の一実施例。FIG. 3 is an example of the use of the sand-covered box of the present invention used for landfilling waste.

【図４】４−(1) は湾内の廃棄物埋立場所の平面図、同
４−(2) は４−(1) に示す海中に投棄した廃棄物上に−
４〜−２m を覆砂層で被覆した場合の一実施例の側面
図。[Fig. 4] 4- (1) is a plan view of the waste landfill site in the bay, and Fig. 4- (2) is the waste dumped in the sea shown in 4- (1).
The side view of one Example at the time of covering 4 to -2 m with a sand cover layer.

【図５】廃棄物埋立区域囲護岸部の断面図。FIG. 5 is a cross-sectional view of the seawall portion of the waste landfill area.

【符号の説明】[Explanation of symbols]

１．覆砂函 ２，３，４，５．覆砂函を油圧によつて上下にスライド
せしめる四隅の鋼管 ６，６′．覆砂函の浮力調整用エアタンク ７．覆砂函の前後の水平方向に開閉する下部枠組の上部
の床面 ７′．覆砂函の側部の水平方向に開閉する下部枠組の下
部の床面 ８．肉厚の鉄板製下面側壁 １５．廃棄物及び砂積込船 １６．廃棄物 １７．海中の２m 覆砂層 １８．覆砂 １９．海水面 ２０．油圧モ−タ−（エンジン）船 ２１．油圧モ−タ− ２２．海底アンカ− ２３．海底地盤 ２５，２９．２m ピツチに設けた簡易護岸用鋼管と支持
用鋼管 ３０．コンクリ−ト板 ３３．シ−トプロテクタ− ３４．長方形の止めブロツク1. Sand cover box 2, 3, 4, 5. Steel pipes at the four corners that allow the sand-covered box to slide up and down by hydraulic pressure 6,6 '. Air tank for adjusting buoyancy of sand cover 7. Floor surface at the top of the lower frame that opens and closes in the horizontal direction before and after the sand-covered box 7 '. 7. The bottom floor of the lower framework that opens and closes horizontally on the side of the sand cover. Thick steel plate bottom wall 15. Waste and sand loading vessels 16. Waste 17. 2m sand cover layer in the sea 18. Sand cover 19. Sea surface 20. Hydraulic motor (engine) ship 21. Hydraulic motor 22. Submarine anchor 23. Seabed 25,29.2m Steel pipe for simple revetment and support steel pipes installed on a pitch 30. Concrete plate 33. Sheet protector 34. Rectangular stop block

─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成５年４月２日[Submission date] April 2, 1993

【手続補正１】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】全文[Correction target item name] Full text

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【書類名】 明細書[Document name] Statement

【発明の名称】 覆砂函及び該覆砂函を使用する埋立
工法Title of the invention Sand cover box and landfill method using the cover box

【特許請求の範囲】[Claims]

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

【０００１】[0001]

【産業上の利用分野】本発明は海域で魚貝類を養殖する
場合の魚貝の餌滓や魚貝類の糞の処理又は都市廃棄物や
産業廃棄物処理場所として海を使用する場合、海域を汚
染することなく、それらの処理のために覆砂によつて処
理可能な覆砂装置及び該覆砂装置を使用した海域の埋立
工法に関するものである。[Field of Industrial Application] The present invention is applicable to the case where the sea is used as a place for treating fish and shellfish sludge and fish and shellfish dung or for treating municipal waste or industrial waste when cultivating fish and shellfish in the sea. The present invention relates to a sand cover device that can be treated with sand cover for treating them without pollution and a landfill construction method for a sea area using the sand cover device.

【０００２】[0002]

【従来の技術】従来、魚貝類を海で養殖する場合、魚貝
類の餌滓や魚貝類の糞はそのまま何等処理されることが
ないため海底に溜り、海を汚染することになる。また我
国では産業廃棄物や都市廃棄物の捨て場所が次第に少な
くなり、また海中に投棄するにしても漏出する汚水の問
題や護岸工事に莫大な費用が必要であつた。2. Description of the Related Art Conventionally, when fish and shellfish are cultivated in the sea, the fish and shellfish dregs and the fish and shellfish dung are not treated as they are, but they accumulate on the sea floor and pollute the sea. Moreover, in Japan, the places where industrial wastes and municipal wastes are dumped have gradually decreased, and even if they are dumped into the sea, the problem of leaked sewage and the huge amount of money required for revetment work.

【０００３】[0003]

【発明が解決しようとする課題】本発明は海で魚貝類を
養殖する場合の魚貝類の餌滓や魚貝類の糞が海底に溜る
ため、海を汚染から守る問題があり、更に年々増加する
都市廃棄物や産業廃棄物の捨て場所の問題がある。我国
の近海例えば瀬戸内海等に多く存在している水深が深す
ぎて太陽光線が到達せず、魚の自然繁殖や貝類の育たな
い水深の著しく大なる海域が最大波高の少ない内湾や内
悔に多く散在する。本発明は栽培漁業地跡の海底の汚染
を防止し、更に内湾や内海を利用して廃棄物を埋立て、
その表面に相当厚さに覆砂をして、浅瀬を造成し、上記
した海底の汚染物や陸上の廃棄物の処理と海域の活性化
を可能ならしめることを目的とするものである。但しこ
の場合の廃棄物は有害物質を含んでいない物に限られ
る。[Problems to be Solved by the Invention] The present invention has a problem of protecting the sea from pollution because the fish and shellfish bait and fish and shellfish dung accumulate on the seabed when aquaculture is performed in the sea. There is a problem of where to dispose of municipal and industrial waste. Many waters near Japan, such as the Seto Inland Sea, are too deep for sunlight to reach, and there are many areas where the maximum wave height is low, such as natural breeding of fish and the extremely large depth of water where shellfish do not grow. Scattered. The present invention prevents the pollution of the seabed of the cultivated and fishery land, and further uses the inner bay and the inner sea to reclaim the waste,
The purpose is to cover the surface with sand to a considerable thickness to create shallow water, and to treat the above-mentioned seabed contaminants and land waste and activate the sea area. However, the wastes in this case are limited to those that do not contain harmful substances.

【０００４】[0004]

【課題を解決するための手段】本発明の第１は四隅に海
底に埋設可能な鋼鉄製支柱に鉄製の函が該鋼鉄製支柱に
備え付けられた昇降装置によつて上下自在に昇降可能に
備え付けられ、該函には函の一方向又は函の前後方向に
水平に開閉自在な底部の床面を備え、函の２側面又は４
側面に浮力調整用エアタンクを備え、函の底部の枠組
は、函に砂を収容した場合、支持可能な肉厚の鉄板の枠
組によつて構成されてなることを特徴とする覆砂函であ
り、更にその第２は覆砂函の前後方向及び左右の両側面
方向に水平に開閉自在の床面を函の四辺の下部枠組の上
下に備えてなる上記第１発明記載の覆砂函であり、その
第３は海域の周囲の境界線に廃棄物及び覆砂の流れ防止
用の鋼鉄製の支柱を一定の間隔をへだてて立設し、該鋼
鉄製支柱間に支柱の覆砂表面までの下方には廃棄物の汚
濁物又は汚濁水の流出防止用のシート状プロテクターを
張設し、シート状プロテクターに接して上方には受け金
で鋼鉄製の支柱に止着されたコンクリート板が張設され
た海域の境界線内に請求項１又は２に記載した移設可能
な覆砂函を四隅の支柱によつて立設して該覆砂函に収容
された廃棄物又は覆砂を覆砂函の下面を水平に開くこと
によつて該海域に投棄して順次該全海域を廃棄物又は覆
砂で埋立て、ついで覆砂を廃棄物の層上１．５ｍ平均、
それ以上又はそれ以下の厚さに被覆することを特徴とす
る覆砂函を使用する海域の埋立工法に関するものであ
る。The first object of the present invention is to provide steel columns that can be buried in the seabed at the four corners so that iron boxes can be moved up and down freely by a lifting device provided on the steel columns. The box is provided with a floor on the bottom that can be opened and closed horizontally in one direction of the box or in the front-back direction of the box.
A buoyancy adjusting air tank is provided on a side surface, and the framework at the bottom of the box is a sand-covered box characterized by being constituted by a framework of a thick iron plate that can support sand when the box contains sand. The second is the sand-covering box according to the first aspect of the present invention, which is provided with floors that can be opened and closed horizontally in the front-rear direction and the left and right side surfaces of the sand-covering box above and below the lower frame on the four sides of the box. The third is that steel columns for preventing the flow of waste and sand cover are erected at regular intervals at the boundary line around the sea area, and between the steel columns to the surface of the sand cover of the columns. A sheet-shaped protector is installed below to prevent the outflow of polluted water or polluted water, and a concrete plate that is fastened to a steel strut with a bracket is installed above the sheet-shaped protector. The removable cover sand box according to claim 1 or 2 is supported at the four corners within the boundary line of the sea area. The waste or sand covered by the sand cover box is dumped in the sea area by horizontally opening the bottom surface of the cover box, and the entire sea area is sequentially treated as waste or cover sand. Landfill, then cover the sand with an average of 1.5m above the waste layer ,
The present invention relates to a reclamation method for a sea area using a sand-covered box, which is characterized by coating with a thickness of more or less .

【０００５】本発明の立方体の覆砂函の四隅の鋼鉄製支
柱は鋼管でもよく、油圧によつて上下にスライド可能な
らしめる。底部の四側部の肉厚の鉄板は覆砂函の規模に
より０．２〜２ｍ程度である。覆砂函は側面が６〜１２
ｍの正方形、高さが約１０ｍの上下に作動する立方体が
好適で、立万体の覆砂函はその四隅の支持鋼管製支柱を
支持軸として油圧によつて上下に垂直に作動し、支柱の
下方の先端は〔図１〕の１−（１）に示す如く海底地盤
に埋込まれる。The steel columns at the four corners of the cubic sand cover of the present invention may be steel pipes, which can be slid up and down by hydraulic pressure. The thick iron plate on the four sides of the bottom is about 0.2 to 2 m depending on the scale of the sand cover box. The side of the sand cover is 6-12
A cube of m in height and a height of about 10 m that works vertically is suitable, and a cubic sand-covered sand box operates vertically by hydraulic pressure with supporting steel pipe stanchions at its four corners as supporting shafts. The lower tip of is buried in the seabed as shown in 1- (1) of [Fig. 1].

【０００６】 [0006]

【図１】の１−（１）1- (1) of FIG.

【０００７】 魚貝類の餌滓や魚貝類の糞が海底に溜り海
底の汚染するのを防止するためには、本発明の覆砂函に
よつて悔へ１．５〜２ｍ程度の厚さに覆砂するのみでよ
く、都市廃棄物や産業廃棄物の捨て場所に使用するため
には〔図３〕に示す如く内湾や内海の水深の大なる海域
に上記廃棄物を埋立て、その上層を本発明の覆砂函を使
用し、その上層に２ｍ平均、それ以上又はそれ以下の覆
砂を施して浅瀬（−４〜−７ｍ）になるように造成する
ことによつて海域の活性化を計ることが可能である。こ
の場合の埋立護岸には移設可能な斜め控え抗式鋼管工法
を主として使用すると安価に護岸が構成される。海域周
囲の境界線に廃棄物及び覆砂の流れ防止用の鋼鉄製の支
柱間に張設される廃棄物の汚濁物又は汚濁水の流出防止
用の支柱の下方のプロテクターは海面から海底までに達
する帆布製シートが好適で、またその上方の波高の及ぶ
水深までの壁板はコンクリート板、鋼板又は合成樹脂板
が好適である。 [0007] In order to prevent fish and shellfish bait and fish and shellfish dung from accumulating on the seabed and contaminating the seabed, the cover sand box of the present invention reduces the thickness to about 1.5 to 2 m. It is only necessary to cover the sand, and in order to use it as a dumping place for municipal waste and industrial waste, as shown in [Fig. 3], the waste is buried in the deep sea area of the inner bay or inland sea, and the upper layer Activation of the sea area is achieved by using the cover sand box of the present invention, and covering the upper layer with cover sand having an average of 2 m or more or less to form a shallow water (-4 to -7 m). It is possible to measure. In this case, the revetment seawall can be constructed at low cost by mainly using the slanting steel pipe construction method that can be relocated. The protector below the column for preventing outflow of waste pollutants or polluted water, which is installed between steel columns for preventing the flow of waste and sand cover at the boundary line around the sea area, is from the sea surface to the seabed. A reaching canvas sheet is suitable, and a concrete wall, a steel plate, or a synthetic resin plate is suitable as the wall plate above the wall to the depth of water reaching the wave height.

【０００８】[0008]

【図３】[Figure 3]

【０００９】[0009]

【実施例】次に図面によつて本発明を説明する。〔図
１〕の１−（１）は本発明の覆砂函の一実施例の斜視図
で側面の四面が鉄製で１０ｍ×１０ｍ×１０ｍの正立方
体の函（１）の四隅に、正立方体の函（１）が上下にス
ライドする先端が海底地盤に打込まれ、上端を正立方体
の函より上方に出た鋼管製の正立方体の函の支持軸
（２），（３），（４），（５）を設け、正立方体の函
の四方の底枠（８）は覆砂を収容するために強靭な鋼板
製四周の枠組が好適である。正立方体の側面の２方に浮
力調整用エアタンク（６），（６′）を備え、正立方体
の函の下面は油圧によつて水平に聞閉自在な床面
（７），（７′）を備えている。正立方体の函（１）は
支持軸（２），（３），（４），（５）によつて油圧に
より上下にスライドするように設置する。函の形態は如
何なる立方体でもよく、また円筒形でもよいが正立方体
が好適に使用される。エアタンク（水槽）（６），
（６′）は正立方体の函の両サイドのみならず四面のサ
イドに設けてもよい。函の浮力調整能力によつて決定さ
れる。〔図１〕の１−（２）は（イ）〜（ホ）の断面を
示すもので、（１０）は油圧ストローグ棒、（９）は山
形鋼である。 The present invention will be described below with reference to the drawings. 1- (1) of FIG. 1 is a perspective view of an embodiment of the sand-covered box of the present invention. The four side surfaces are made of iron and are 10 m × 10 m × 10 m cubic cubes. Box (1) slides up and down, the tip is driven into the seabed, and the upper ends of the boxes are made up of steel cubes. The support axes (2), (3), (4) of the box are made of steel. ), (5), the four-sided bottom frame (8) of the cubic box is preferably a strong four-frame steel plate frame for accommodating sand. Buoyancy adjusting air tanks (6) and (6 ') are provided on two sides of the cube, and the bottom surface of the box of the cube is a floor surface (7) and (7') that can be horizontally closed by hydraulic pressure. Is equipped with. The cubic box (1) is installed so as to slide up and down by hydraulic pressure by means of support shafts (2), (3), (4) and (5). The shape of the box may be any cube or cylindrical shape, but a regular cube is preferably used. Air tank (water tank) (6),
(6 ') may be provided not only on both sides of the cubic box but also on the four sides. It is determined by the buoyancy adjustment capability of the box. 1- (2) of FIG. 1 is a cross section taken from (a) to (e), in which (10) is a hydraulic straw bar and (9) is angle steel.

【００１０】[0010]

【図１】の１−（２）1- (2) of FIG.

【００１１】 〔図２〕は下面の水平自在に開閉する床面
（７）のほかに鋼板製の左右の両側下方の枠組（８）の
下方に更に水平に開閉自在な床面（７′）を設けて、
（７），（７′）を水平に開いた一実施例の図を示す。
左右の枠組の下方に設けられた床面（７′）は覆砂を施
工する海底の地盤が軟弱な場合、函内の砂厚のため必要
以上に力が掛り、砂を取容した函が海底地盤にめり込
み、施工が著しく困難になるのを防ぐために設けられた
ものであり、そのため函全体の加重が海底地盤に加圧さ
れることがなく、覆土のめり込み損失を防止する効果を
奏する。 FIG . 2 shows a floor surface (7) that can be opened and closed horizontally, and a floor surface (7 ') that can be opened and closed further horizontally below a frame (8) on both left and right lower sides made of steel plates. With
The figure of one Example which opened (7) and (7 ') horizontally is shown.
The floor surface (7 ') provided below the left and right frameworks uses excessive force due to the thickness of the sand inside the box when the seabed ground where the sand cover is applied is soft, and It is provided in order to prevent the construction from getting into the seabed ground and making the construction extremely difficult. Therefore, the weight of the entire box is not pressed to the seabed ground, and the effect of preventing the cover soil from slipping into the ground is achieved.

【００１２】[0012]

【図２】[Fig. 2]

【００１３】 〔図３〕は本発明の覆砂函（１）を海浜に
支柱（２），（５）によつて上下自在にスライドするよ
うに設置し、廃棄物及び砂積込み船（１５）より覆砂箱
（１）に廃棄物（１６）又は覆砂（１８）を投下して、
海底地盤（−４０ｍ）（２３）に水深−２〜−７ｍ（１
７）まで廃棄物（１６）が堆積して、その上に覆砂（敷
砂）（１８）を２ｍまで敷設した一実施の覆砂函の使用
状態を示す図で、（２０）油圧モーター船、（２１）油
圧モーター、（２２）海底アンカ、（１９）は覆砂より
＋２ｍある海岸線を示す。 FIG . 3 shows the sand-covered box (1) of the present invention installed on the beach so as to be slidable up and down by the columns (2) and (5), and the waste and sand loading ship (15). Drop the waste (16) or sand cover (18) into the sand cover box (1),
Submarine ground (-40m) (23) with water depth -2 to -7m (1
Fig. 7 is a diagram showing a use state of a sand cover box in which waste (16) is accumulated up to 7) and a sand cover (laying sand) (18) is laid up to 2 m on it (20) Hydraulic motor ship , (21) hydraulic motor, (22) seabed anchor, and (19) show the shoreline +2 m above the sand cover.

【００１４】 〔図４〕の４−（１）は廃棄物埋立個所を
示す平面図で、両岬（２８）の間の湾内に海中投棄廃棄
物（１６）を廃棄する区域Ａ，Ｂ，Ｃ，Ｄを設け、投棄
船（１５）がその出入口（２６）より出入りしてＡ，
Ｂ，Ｃ，Ｄ内に廃棄物を投棄するようになつている。湾
内の最深部は−４０ｍｍ程度の深さがある。湾内のＡ，
Ｂ，Ｃ，Ｄの線に〔図５〕に示すような鋼管を２ｍピツ
チで立てて、簡易護岸（２５）とする。簡易護岸は覆砂
がＡ，Ｂ，Ｃ，Ｄ区域内を完了した場台は撒去しても差
支えない。撤去した場合該簡易護岸の材料は次期埋立場
所に転用できる利点がある。 [0014] 4- (1) of [Fig. 4] is a plan view showing a waste landfill site, and areas A, B, and C for discarding undersea waste (16) in the bay between both capes (28). , D is provided, and the dumping ship (15) enters and exits through its entrance (26) A,
Wastes are dumped in B, C and D. The deepest part in the bay has a depth of about -40 mm. A in the bay,
A steel pipe as shown in [Fig. 5] is erected with 2 m pitches on the lines B, C and D to form a simple revetment (25). For the simple revetment, it is acceptable to scrub the platform where the sand cover is completed in the areas A, B, C, and D. When removed, there is an advantage that the material of the simple revetment can be diverted to the next landfill site.

【００１５】[0015]

【図４】の４−（１）FIG. 4 of 4- (1)

【００１６】[0016]

【図５】[Figure 5]

【００１７】 〔図５〕は廃棄物埋立区域囲い護岸の断面
図を示す。〔図４〕の４−（１）Ａ，Ｂ，Ｃ，Ｄの囲い
線に２ｍのピツチで鋼管（２５）、支柱（２９）を立設
する。鋼管（２５）の廃棄物（１６）側には汚濁物又は
汚濁水の流出防止用シートプロテクター（３３）を下方
に、更にコンクリート板（３０）をその上方にそれぞれ
の鋼管の全長にわたつて張設する。覆砂の周囲に鋼管
（２５）の海底に接する個所に長方形のシートプロテク
ター止め用ブロツク（３４）を設ける。 FIG . 5 shows a cross-sectional view of the revetment for the waste landfill area. The steel pipe (25) and the column (29) are erected on the enclosure line of 4- (1) A, B, C, D of FIG. 4 with a pitch of 2 m. On the waste (16) side of the steel pipe (25), a sheet protector (33) for preventing outflow of pollutants or contaminated water is stretched downward, and a concrete plate (30) is stretched over it over the entire length of each steel pipe. Set up. A rectangular sheet protector blocking block (34) is provided around the sand cover at a position where the steel pipe (25) contacts the seabed.

【００１８】[0018]

【発明の効果】本発明の効果を纏めると下記の通りであ
る。 （１）本発明の覆砂函を使用することによつて周辺海域
の覆砂が著しく簡単、安価にでき、都市廃棄物、産業廃
棄物の新たな廃棄場所を提供することが可能になつた。 （２）栽培魚業地跡の魚貝類の餌滓や魚糞による海底の
汚染が本発明の覆砂函を使用して覆砂することによつ
て、簡易、安価に防止可能になつた。 （３）覆砂函の両面又は四面に浮力槽を取付け、浮力槽
の調節と四隅の鋼管に取付けた油圧ポンプとにより、覆
砂函を昇降並びに回転自在ならしめ得られ、覆砂の位置
や高さが自在に選択可能で海浜の如何なる場所でも覆砂
工事ができる利点がある。 （４）覆砂地域の周囲に護岸設備を設けているが故に工
事中でも覆砂や廃棄物の汚濁物や汚濁水の覆砂地域から
の流出が皆無で、廃棄物の処理による工事周囲の海域を
汚染することがない。 （５）本発明の覆砂函を使用することにより、廃棄物の
埋立と護岸工事を迅速、安価に遂行することができる。The effects of the present invention are summarized as follows. (1) By using the sand covering box of the present invention, the covering of the surrounding sea area can be remarkably simple and inexpensive, and it becomes possible to provide a new disposal site for municipal waste and industrial waste. . (2) Contamination of the seabed due to fish dregs and fish dung in the traces of cultivated fisheries land can be prevented easily and inexpensively by covering the sand with the sand covering box of the present invention. (3) Buoyancy tanks are attached to both sides or four sides of the sand cover box, and the sand cover box can be moved up and down and rotated by adjusting the buoyancy tank and the hydraulic pumps attached to the steel pipes at the four corners. The height can be freely selected, and there is an advantage that sand covering work can be done at any place on the beach. (4) Since the seawall is installed around the sand cover area, there is no outflow from the sand cover area or the polluted water of the waste and polluted water during the construction, and the sea area around the construction due to the waste disposal. Never pollute. (5) By using the sand covering box of the present invention, landfilling of waste and revetment construction can be performed quickly and at low cost.

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

【図１】〔図１〕の１−（１）は本発明の覆砂函の一実
施例の斜視図、同１−（２）は同１−（１）図の（イ）
〜（ホ）の断面図。FIG. 1- (1) of FIG. 1 is a perspective view of an embodiment of the sand-covered box of the present invention, and FIG. 1- (2) is (a) of FIG. 1- (1).
Sectional view of (e).

【図２】覆砂函の水平開閉二重底構造の一実施例の斜視
図。FIG. 2 is a perspective view of an embodiment of a horizontally opening / closing double bottom structure of a sand cover box.

【図３】廃棄物埋立用に使用される本発明の覆砂函の使
用の一実施例。FIG. 3 is an example of the use of the sand-covered box of the present invention used for landfilling waste.

【図４】〔図４〕の４−（１）は湾内の廃棄物埋立場所
の平面図、同４−（２）は同４−（１）に示す海中に投
棄した廃棄物上に−４〜−２ｍを覆砂層で被覆した場合
の一実施例の側面図。[4] [4] of 4- (1) is a plan view of a landfill site in the bay, the 4- (2) is on the waste dumped into the sea shown in the 4- (1) -4 The side view of one Example at the time of covering -2m with a sand cover layer.

【図５】廃棄物埋立区域囲護岸部の断面図。FIG. 5 is a cross-sectional view of the seawall portion of the waste landfill area.

【符号の説明】 １．覆砂函 ２，３，４，５．覆砂函を油圧によつて上下にスライド
せしめる四隅の鋼管 ６，６′．覆砂函の浮力調整用エアタンク ７．覆砂函の前後の水平方向に開閉する下部枠組の上部
の床面 ７′．覆砂函の側部の水平方向に開閉する下部枠組の下
部の床面 ８．肉厚の鉄板製下面側壁 １５．廃棄物及び砂積込船 １６．廃棄物 １７．海中の２ｍ覆砂層 １８．覆砂 １９．海水面 ２０．油圧モーター（エンジン）船 ２１．油圧モーター ２２．海底アンカー ２３．海底地盤 ２５，２９．２ｍピツチに設けた簡易護岸用鋼管と支持
用鋼管 ３０．コンクリート板 ３３．シートプロテクター ３４．長方形の止めブロツク[Explanation of symbols] 1. Sand cover box 2, 3, 4, 5. Steel pipes at the four corners that allow the sand-covered box to slide up and down by hydraulic pressure 6,6 '. Air tank for adjusting buoyancy of sand cover 7. Floor surface at the top of the lower frame that opens and closes in the horizontal direction before and after the sand-covered box 7 '. 7. The bottom floor of the lower framework that opens and closes horizontally on the side of the sand cover. Thick steel plate bottom wall 15. Waste and sand loading vessels 16. Waste 17. 2m sand cover layer in the sea 18. Sand cover 19. Sea surface 20. Hydraulic motor (engine) ship 21. Hydraulic motor 22. Submarine anchor 23. Seabed 25, 29.2m Steel pipes for revetment and supporting steel pipes installed at pitches of 29.2m Concrete plate 33. Seat protector 34. Rectangular stop block

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 四隅に海底に埋設可能な鋼鉄製支柱に鉄
製の函が、鋼鉄製支柱に備付けられた昇降装置によつて
上下に自在に昇降可能に備付けられ、該函には函の一方
向又は函の前後方向に水平に開閉自在な底部の床面を備
え、函の２側面又は４側面に浮力調整用エアタンクを備
え、函の底部の枠組は、函に砂を収容した場合、支持可
能な肉厚の鉄板の枠組によつて構成されてなることを特
徴とする覆砂函。1. An iron box is attached to four corners of a steel column that can be buried in the seabed so that it can be moved up and down freely by an elevating device provided on the steel column. Direction or the front and rear direction of the box, the bottom floor can be opened and closed horizontally, the air tanks for buoyancy adjustment are provided on two or four sides of the box, and the frame at the bottom of the box supports when sand is stored in the box. A sand-covered box, which is configured by a framework of an iron plate having a possible thickness. 【請求項２】 覆砂函の前後及び左右の両側下方枠組に
水平に開閉自在の床面を函の下方の枠組の上下に備えて
なる請求項１記載の覆砂函。2. The sand-covering box according to claim 1, wherein the front and rear and left and right lower frames of the sand-covering box have horizontally openable and closable floor surfaces above and below the frame below the box. 【請求項３】 海域の周囲の境界線に廃棄物及び覆砂の
流れ防止用の鋼鉄製の支柱を一定の間隔をへだてて立設
し、該鋼鉄製支柱間に支柱の覆砂表面までの下方には廃
棄物の汚濁物又は汚濁水の流出防止用のシ−ト状プロテ
クタ−を張設し、シ−ト状プロテクタ−に接して上方に
は受け金で鋼鉄製の支柱に止着された壁板が張設された
海域の境界線内に請求項１又は２記載の移設可能に覆砂
函を支柱により立設して該覆砂函に収容された廃棄物又
は覆砂を、覆砂函の下面を水平に開くことによつて該海
域に投棄して順次該全海域を廃棄物又は覆砂で埋立て、
ついで覆砂を廃棄物の層上1.5mm 以上の厚さに被覆する
ことを特徴とする覆砂函を使用する海域の埋立工法。3. Steel columns for preventing the flow of waste and sand cover are set up at regular intervals at the boundary line around the sea area, and between the steel columns to the surface of the sand cover of the columns. A sheet-like protector for preventing the outflow of polluted water or polluted water from the waste is stretched under the sheet-like protector. The transferable cover sand box according to claim 1 or 2 is erected by a pillar so that the waste or the cover sand contained in the cover sand cover the boundary of the sea area where the wall plate is stretched. By horizontally opening the lower surface of the sand box, it is dumped in the sea area and the whole sea area is sequentially filled with waste or covered sand,
Next, a landfill method for sea areas using a sand cover box, which is characterized by covering the waste layer with a thickness of 1.5 mm or more.