JP3897309B2 - How to add block-like objects to water - Google Patents

How to add block-like objects to water Download PDF

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JP3897309B2
JP3897309B2 JP2004315058A JP2004315058A JP3897309B2 JP 3897309 B2 JP3897309 B2 JP 3897309B2 JP 2004315058 A JP2004315058 A JP 2004315058A JP 2004315058 A JP2004315058 A JP 2004315058A JP 3897309 B2 JP3897309 B2 JP 3897309B2
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block
water
blocks
objects
loosely
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達也 平山
一成 小宮
英久 清水
一美 小林
隆宏 熊谷
繁樹 杉田
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Penta Ocean Construction Co Ltd
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    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81—Aquaculture, e.g. of fish

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Description

本発明は、水底に所定形状の基礎マウンド等の水中構造物を形成するためにブロック状物を水中に投入するブロック状物の水中投入方法に関するものである。 The present invention relates to water-on how the block-like material to inject block-like material in water to form a water structure foundation mound or the like of a predetermined shape on the bottom of the water.

従来から、魚礁の構築等のために、運搬したブロック等を海中に直投することにより、海底に所定形状の基礎マウンドを築造する工事が行われている。即ち、従来は、全開式の運搬船等を使用し、ＧＰＳ等を利用した位置決め後に、ブロック等を直投または自然落下させることにより、海底に基礎マウンドを築造する工事を実施していた。運搬船等においては、ＧＰＳ、方位検出器等を利用することで精度良く位置出しを行うことは可能であったが、次のような問題点があった。   Conventionally, construction of a foundation mound of a predetermined shape on the sea floor has been performed by directly throwing a transported block or the like into the sea for the construction of a fish reef. That is, conventionally, a full-open type transport ship or the like is used, and after positioning using GPS or the like, a construction is performed in which a foundation mound is built on the sea floor by directly throwing blocks or dropping them naturally. In a transport ship or the like, it was possible to perform positioning with high accuracy by using a GPS, a direction detector, or the like, but there were the following problems.

（１）ブロックの直投後は、現場海域の潮流等に左右されるため、ブロックは海中で拡散する傾向があり、深度が深くなるほど顕著である。このため、ブロックを目標地点に確実に着地させることが困難である。   (1) After the block is thrown directly, it depends on the tide of the site sea area, etc., so the block tends to diffuse in the sea, and becomes more prominent as the depth increases. For this reason, it is difficult to reliably land the block at the target point.

（２）ブロックは着底部でその着地位置のばらつきが大きいので、実投入量が予定数量をオーバーしてしまい、このため施工費がアップしてしまう。   (2) Since the variation of the landing position of the block is large at the bottom, the actual input amount exceeds the planned quantity, which increases the construction cost.

本発明は、上述のような従来技術の問題に鑑み、水底に基礎マウンド等の水中構造物を構築するために水中に投入したブロック状物が目標地点に確実に到達できるようにしたブロック状物の水中投入方法を提供することを目的とする。 In view of the problems of the prior art as described above, the present invention is a block-like object in which a block-like object introduced into the water in order to construct an underwater structure such as a foundation mound on the bottom of the water can reliably reach the target point. an object of the present invention is to provide a water-on how.

上記目的を達成するために、本発明によるブロック状物の水中投入方法は、略六面体状のブロック状物を運搬船に多数積み込み、前記運搬船を所定の水域に移動させた後に前記多数のブロック状物を水中に投入し水中で落下させることにより水底の目標地点に水中構造物を構築するためのブロック状物の投入方法であって、前記ブロック状物を２個ずつ柔軟性のある連結部材により、前記ブロック状物同士の最大の面間距離が前記ブロック状物の一片の長さの１乃至５倍になるようにルーズに連結し、前記多数のブロック状物を、前記運搬船の船倉内において前記連結した２個のブロック状物が前記運搬船の長さ方向に対して平行にかつ直線上に並ぶように配置するとともにワイヤーロープで支持しながら前記長さ方向と直交する方向に向けかつ水平方向に対し傾斜させて配置し、前記ワイヤーロープを切り離すことで前記多数のブロック状物を前記運搬船の船底から前記２個ずつルーズに連結した状態で水中に投入し水中で落下させることを特徴とする。 In order to achieve the above-described object, the block-like object throwing-in method according to the present invention includes loading a large number of substantially hexahedral block-like objects onto a transport ship and moving the transport ship to a predetermined water area. the connecting member a method of input block-like material for constructing underwater structure to the sea bed of the target point by was poured into water to drop in the water, a flexible the block-like material by two, The block-like objects are loosely connected so that the maximum inter-surface distance is 1 to 5 times the length of one piece of the block-like objects, and the plurality of block-like objects are Two connected block-like objects are arranged in parallel and in a straight line with the length direction of the transport ship, and are supported by a wire rope and directed in a direction perpendicular to the length direction. One is tilted disposed with respect to the horizontal direction, that are dropped by said was poured into water and the number of block-like product by disconnecting the wire rope in the connected state loosely two each from said ship bottom of the carrier water Features.

このブロック状物の水中投入方法によれば、ロープ等の連結部材でルーズに連結された複数のブロック状物は、水中を落下するとき、個々のブロック状物が互いに相手側の回転を牽制することで拡散する方向への落下を抑制するので、塊となって落下する場合に比べてブロック状物の拡散を極力防止することができる。このため、水中に投入したブロック状物を目標地点に確実に到達させることができる。   According to this underwater charging method for block-like objects, when a plurality of block-like objects connected loosely by a connecting member such as a rope fall underwater, the individual block-like objects check the rotation of the other side with respect to each other. Since the fall to the direction to spread is suppressed by this, compared with the case where it falls as a lump, diffusion of a block-like thing can be prevented as much as possible. For this reason, the block-like thing thrown into water can be made to reach a target point reliably.

また、上記ブロック状物の水中投入方法において、ブロック状物に連結部材を接続するための接続部を設けることが好ましい。なお、ブロック状物は２個または３個ルーズに連結することが好ましい。   Further, in the above-described method for throwing the block-shaped object into the water, it is preferable to provide a connection part for connecting the connecting member to the block-shaped object. In addition, it is preferable to connect two or three block-like objects loosely.

上述のブロック状物の水中投入方法により前記ブロック状物を水中に投入し水中で落下させることで水底に水中構造物を構築することができる。この水中構造物の構築方法によれば、ブロック状物により水底に水中構造物を効率的に構築でき、また、複雑な形状の水中構造物も構築可能となる。なお、上述のブロック状物の一片の長さは連結部材が延びる方向と略平行な方向における長さである（図８参照）。 The bottom of the water in the water-on method of the block-like material described above was charged with the block-like material into the water be dropped in water can be used to construct underwater structures. According to the construction method of the underwater structure, the underwater structure can be efficiently constructed on the bottom of the water by using the block-like material, and a complex-shaped underwater structure can also be constructed. In addition, the length of one piece of the above-mentioned block-shaped thing is the length in the direction substantially parallel to the direction where a connection member is extended (refer FIG. 8).

本発明のブロック状物の水中投入方法によれば、水中に投入したブロック状物を目標地点に確実に到達させることができる。このため、ブロック状物により水底に基礎マウンド等の水中構造物を効率的に構築でき、また、ブロック状物の実投入量の管理がし易くなり、施工費のコストダウンに寄与できる。 According to water-on how the block-like product of the present invention, it is possible to reliably reach the block-like material was put into water at the target point. For this reason, an underwater structure such as a foundation mound can be efficiently constructed on the bottom of the water with the block-like material, and the actual input amount of the block-like material can be easily managed, thereby contributing to a reduction in construction costs.

以下、本発明を実施するための最良の形態について図面を用いて説明する。図１は本実施の形態による水中投入方法の際に用いることのできる２個のブロックを連結した例を概略的に示す斜視図である。図２は本実施の形態による水中投入方法の際に用いることのできる３個のブロックを連結した別の例を概略的に示す斜視図である。   The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view schematically showing an example in which two blocks that can be used in the underwater charging method according to the present embodiment are connected. FIG. 2 is a perspective view schematically showing another example in which three blocks that can be used in the underwater charging method according to the present embodiment are connected.

図１の例は、略正立方体状のコンクリート製のブロック１１と１２をロープ１６でルーズに連結したものである。ロープ１６を接続するためのリング状に構成された接続部１１ａ、１２ａがそれぞれブロック１１、１２の一面に固定されている。２個のブロック１１、１２が接続部１１ａ、１２ａでロープ１６でルーズに連結されている。   In the example of FIG. 1, concrete blocks 11 and 12 having a substantially regular cubic shape are loosely connected by a rope 16. Connection portions 11a and 12a configured in a ring shape for connecting the rope 16 are fixed to one surface of the blocks 11 and 12, respectively. The two blocks 11 and 12 are loosely connected by the rope 16 at the connecting portions 11a and 12a.

図２の例は、略正立方体状のコンクリート製のブロック１１と１２と１３をロープ１６、１７でルーズに連結したものである。ロープ１６を接続するためのリング状に構成された接続部１１ａ、１２ａ、１３ａがそれぞれブロック１１、１２、１３の一面に固定されている。ブロック１１、１２が接続部１１ａ、１２ａでロープ１６でルーズに連結され、ブロック１２、１３が接続部１２ａ、１３ａでロープ１７でルーズに連結されることで、３個のブロック１１、１２、１３がルーズに連結されている。   In the example of FIG. 2, concrete blocks 11, 12, and 13 having a substantially regular cubic shape are loosely connected by ropes 16 and 17. Connection portions 11a, 12a, and 13a configured in a ring shape for connecting the rope 16 are fixed to one surface of the blocks 11, 12, and 13, respectively. The blocks 11 and 12 are connected to the loose with the rope 16 at the connecting portions 11a and 12a, and the blocks 12 and 13 are connected to the loose with the rope 17 at the connecting portions 12a and 13a, so that the three blocks 11, 12, 13 are connected. Is connected loosely.

なお、ブロックは４個またはそれ以上それぞれをルーズに連結してもよいことは勿論である。また、ロープ１６，１７は、適度な強度のある各種の柔軟性のあるものを使用できる。   Of course, four or more blocks may be connected loosely. Moreover, the ropes 16 and 17 can use various flexible things with moderate strength.

また、本実施の形態において、複数のブロックをルーズに連結するとは、水中を落下するとき、個々のブロックが互いにロープで連結されていることで各ブロックの回転が抑制されながら、あたかも各ブロックが単独で落下できるような関係になっていればよい程度の意味であり、これにより、ブロックの拡散を抑制できる。   In the present embodiment, connecting a plurality of blocks loosely means that when the blocks fall underwater, the individual blocks are connected to each other by ropes so that the rotation of each block is suppressed. This means that the relationship should be such that it can fall by itself, thereby suppressing the spread of blocks.

次に、ブロックを運搬し海中に投入するための運搬船について図３を参照して説明する。図３は、運搬船の上面図（ａ）、要部上面図（ｂ）、及び要部正面図（ｃ）である。 Next, a transport ship for transporting the blocks and throwing them into the sea will be described with reference to FIG. Figure 3 is a top view of a carrier (a), main portion top view (b), and partial front view (c).

図３（ａ）のように、岸壁にて、運搬船２０の船倉２０ａ内に多数のブロック２１を積み込んで設置する。ブロック２１は２個ずつ図１と同様にロープ２２でルーズに連結されている。図３（ｃ）のように、ブロック支持用ワイヤーロープ３５の一端を支柱３２に固定し他端をターンバックル３３ａを介して固定部３３に接続することでブロック２１を支持し、更に、図３（ｂ）のようにブロック２１をワイヤーロープ３５にて大回しし、船倉２０ａをオープンした時の落下防止用としている。図３（ｂ）のように、ワイヤーロープ３５の一端部を船倉２０ａ内の固定部２０ｂに固定し、他端部は可動部２０ｃに接続している。ブロック投入のとき、可動部２０ｃを動作させることで、ワイヤーロープ３５を切り離す構造としている。 As shown in FIG. 3A, a large number of blocks 21 are loaded and installed in the hold 20a of the transport ship 20 at the quay. Two blocks 21 are connected to each other loosely by ropes 22 as in FIG. As shown in FIG. 3 (c), the support block 21 by connecting one end of the block supporting wire rope 35 to the fixing unit 33 via the turnbuckle 33a fixed to the other end to the strut 32, further, FIG. As shown in FIG. 3 (b), the block 21 is rotated by the wire rope 35 to prevent falling when the hold 20a is opened. As shown in FIG. 3B, one end of the wire rope 35 is fixed to the fixed portion 20b in the hold 20a, and the other end is connected to the movable portion 20c. When the block is inserted, the wire rope 35 is separated by operating the movable portion 20c.

図４は図３の運搬船２０から海中に投入されたブロックの落下の様子を模式的に示す図である。   FIG. 4 is a diagram schematically showing the state of a block dropped from the transport ship 20 of FIG. 3 into the sea.

図４のように、運搬船２０が例えば基礎マウンドを構築する所定の海域に移動してから、図３（ｂ）の可動部２０ｃを動作させてワイヤーロープ３５を切り離すことで、船底から多数のブロック２１を海底Ｇに向けて投入する。   As shown in FIG. 4, after the transport ship 20 moves to a predetermined sea area where, for example, a foundation mound is constructed, the movable portion 20c of FIG. 21 is thrown toward the seabed G.

２個ずつロープ２２でルーズに連結されたブロック２１は、海中を落下するとき、各ブロック２１が互いに相手側の回転を牽制し拡散する方向への落下を抑制するので、塊となって落下する場合に比べて、海流等があってもブロック２１の拡散を極力防止することができ、ブロック２１の到達地点が大きくばらつくことがない。例えば、水深９０ｍ、６０ｍ×６０ｍの広さの図４のような基礎マウンドＭを海底Ｇに構築可能である。   The blocks 21 that are connected to each other by two ropes 22 fall loosely in the sea as each block 21 checks the other side's rotation and suppresses the falling in the spreading direction. Compared to the case, even if there is an ocean current or the like, the diffusion of the block 21 can be prevented as much as possible, and the arrival point of the block 21 does not vary greatly. For example, a basic mound M as shown in FIG. 4 having a water depth of 90 m and an area of 60 m × 60 m can be constructed on the seabed G.

本実施の形態のブロック投入方法によれば、海中に投入したブロック２１を目標地点に確実に到達させることができるため、ブロック２１により海底Ｇに基礎マウンドＭを効率的に構築できる。   According to the block throwing method of the present embodiment, the block 21 thrown into the sea can surely reach the target point, so that the basic mound M can be efficiently constructed on the seabed G by the block 21.

また、ブロックの拡散程度を極力抑えることにより、ブロックの投入量を適正にできるので、施工費のコストダウンに寄与できる。また、複雑な形状の基礎マウンドの築造にも対応できる。また、使用するロープ等は特殊品でないため施工性に優れている。   Also, by suppressing the block diffusion as much as possible, the input amount of the block can be made appropriate, which can contribute to the cost reduction of the construction cost. It can also handle the construction of complex-shaped foundation mounds. Moreover, since the rope etc. to be used are not special goods, they are excellent in workability.

上述のブロック水中投入方法に関し、実海域を想定した縮尺モデルにて室内実験を行いその有効性を確認した。   With regard to the above-described block water injection method, laboratory experiments were conducted using a scale model that assumed an actual sea area, and its effectiveness was confirmed.

全開式運搬船を使用しブロックを直投した場合の拡散程度を把握するために、実際の約１／２０のモデルとし、水槽を使用して模型実験を実施した。   In order to grasp the degree of diffusion when a block is directly thrown using a fully-open type transport ship, a model experiment was conducted using a water tank with an actual model of 1/20.

ブロックの大きさを、実際は１．６ｍ×１．６ｍ×１．６ｍとし、この大きさに対して８ｃｍ×８ｃｍ×８ｃｍとした。このブロック２個を図５のように中央部分の孔を通してひもでルーズに連結した。ブロックの比重・材質は実際のものとほぼ同じである。   The block size was actually 1.6 m × 1.6 m × 1.6 m, and was 8 cm × 8 cm × 8 cm with respect to this size. As shown in FIG. 5, the two blocks were connected loosely with a string through a hole in the central portion. The specific gravity and material of the block are almost the same as the actual one.

水槽の水深を３．７ｍ程度とし、水槽内の水流はない状態で実験を行った。実験時には、実際の施工条件に類似した条件とするために、運搬船の開閉角度に合わせて模型をセットし、投入個数を６個投入および４個投入を１セットとし合計５セット（個数で２×２５組＝５０個）の投入を行った。さらに模型の向きも変化させ合計４パターン行った。   The experiment was conducted in a state where the water depth of the water tank was about 3.7 m and there was no water flow in the water tank. At the time of the experiment, in order to make the conditions similar to the actual construction conditions, the model was set according to the opening and closing angle of the carrier ship, and the number of thrown pieces was 6 pieces and 4 pieces were put into one set, for a total of 5 sets (2 × in number) 25 sets = 50 pieces). Furthermore, the pattern orientation was changed and a total of 4 patterns were performed.

また、拡散程度を極力抑える方法を検討するために、ブロック３個をひもでルーズに連結した場合の投入実験も行った。   In addition, in order to examine a method for suppressing the degree of diffusion as much as possible, a throwing experiment was conducted when three blocks were loosely connected with a string.

図６に水槽底面における各ブロック（２個連結）の着地位置を示す。中心位置からの距離でブロック着地位置の拡散の度合いを標準偏差により評価すると、ブロック２個の場合で約２６ｃｍであり、ブロック３個の場合で約３６ｃｍであった。   FIG. 6 shows the landing position of each block (two connected) on the bottom of the water tank. When the degree of diffusion at the block landing position was evaluated based on the standard deviation based on the distance from the center position, it was about 26 cm in the case of two blocks and about 36 cm in the case of three blocks.

比較例として、ブロックをひもで連結しない以外は、上記の条件と同一にして同様の実験を行った。図７に水槽底面における各ブロックの着地位置を示す。   As a comparative example, a similar experiment was performed under the same conditions as above except that the blocks were not connected with a string. FIG. 7 shows the landing position of each block on the bottom of the water tank.

比較例のひもで連結しない個々のブロックを投入する従来方法によれば、拡散程度の評価を標準偏差で評価すると、１σで７４ｃｍ〜８８ｃｍ程度に拡散した（図７では、σ＝８３．３ｃｍ）。これに対し、本実施例では、標準偏差で評価するとブロック２個の場合で約２６ｃｍであり、ブロック３個の場合で約３６ｃｍであったので、ひもでブロックをルーズに連結した実施例では、連結せずに個々のブロックを投入した比較例と比べると、明らかに拡散幅が減少することが確認できた。   According to the conventional method in which individual blocks that are not connected by the string of the comparative example are input, when the evaluation of the diffusion degree is evaluated by the standard deviation, the diffusion is performed from 74 cm to 88 cm at 1σ (in FIG. 7, σ = 83.3 cm). . On the other hand, in this embodiment, the standard deviation is about 26 cm in the case of 2 blocks, and about 36 cm in the case of 3 blocks. In the embodiment in which the blocks are connected loosely with a string, Compared to the comparative example in which individual blocks were added without being connected, it was confirmed that the diffusion width was clearly reduced.

また、２個連結と３個連結とでは２個連結の方がより拡散幅が小さいので、本実験では、連結個数は２個の方が有効と判明した。   In addition, since the diffusion width of the two connections is smaller than that of the two connections and the three connections, it was found that two connections are more effective in this experiment.

以上のように本発明を実施するための最良の形態について説明したが、本発明はこれらに限定されるものではなく、本発明の技術的思想の範囲内で各種の変形が可能である。例えば、本実施の形態及び実施例では、略正立方体形状のブロックを使用したが、本発明はこれに限定されずに、他形状のブロックも使用できる。また、ブロック１個の寸法も適宜設定可能である。   As described above, the best mode for carrying out the present invention has been described. However, the present invention is not limited to these, and various modifications are possible within the scope of the technical idea of the present invention. For example, in the present embodiment and examples, blocks having a substantially regular cubic shape are used. However, the present invention is not limited to this, and blocks having other shapes can also be used. Moreover, the dimension of one block can also be set suitably.

また、本発明は、基礎マウンド以外の各種の水中構造物の構築にも適用可能であって、例えば、魚礁や潜堤等の構築にも適用でき、また、海底における水中構造物に限定されず、例えば、河川の水底や湖沼の湖底における水中構造物の構築にも適用できる。   In addition, the present invention can be applied to construction of various underwater structures other than the basic mound, and can be applied to construction of, for example, fish reefs and submersibles, and is not limited to underwater structures on the seabed. For example, the present invention can be applied to construction of an underwater structure on a river bottom or a lake bottom.

また、ブロックをロープで連結したときのブロック同士の好ましい間隔に関しては、例えば、図８のように、一辺の長さａの略正立方体状のブロック１１と１２をロープ１６で連結した場合、ブロック１１と１２のロープ長さに対応する最大の面間距離ｄがブロック１１、１２の一辺の長さａの１乃至５倍程度であることが好ましく、これにより、水中落下のときのブロックの拡散を効果的に抑制できる。また、ブロックとブロックとを連結するロープは２本等の複数本であってもよい。   In addition, with regard to a preferable interval between the blocks when the blocks are connected by a rope, for example, as shown in FIG. 8, when the blocks 11 and 12 having a substantially regular cubic shape with one side a are connected by the rope 16, It is preferable that the maximum inter-surface distance d corresponding to the rope length of 11 and 12 is about 1 to 5 times the length a of one side of the blocks 11 and 12, so that the diffusion of the block when dropped in water Can be effectively suppressed. Moreover, the rope which connects a block and a block may be two or more.

本実施の形態による水中投入方法の際に用いることのできる２個のブロックを連結した例を概略的に示す斜視図である。It is a perspective view which shows roughly the example which connected two blocks which can be used in the case of the underwater injection | throwing-in method by this Embodiment. 本実施の形態による水中投入方法の際に用いることのできる３個のブロックを連結した別の例を概略的に示す斜視図である。It is a perspective view which shows schematically the other example which connected three blocks which can be used in the case of the underwater injection | throwing-in method by this Embodiment. 本実施の形態による水中投入方法に用いることのできる運搬船の上面図（ａ）、要部上面図（ｂ）、及び要部正面図（ｃ）である。Top view of a carrier that can be used in water-on method according to the present embodiment (a), a main part top view (b), and partial front view (c). 図３の運搬船から海中に投入されたブロックの落下の様子を模式的に示す図である。It is a figure which shows typically the mode of the fall of the block thrown into the sea from the carrier ship of FIG. 実施例においてブロック２個を中央部分の孔を通してひもでルーズに連結した様子を示す図である。It is a figure which shows a mode that two blocks were connected with the string loosely through the hole of the center part in the Example. 実施例の実験において水槽底面における各ブロック（２個連結）の着地位置を示す図である。It is a figure which shows the landing position of each block (two connected) in the water tank bottom face in experiment of an Example. 比較例の実験において水槽底面における各ブロック（連結せず）の着地位置を示す図である。It is a figure which shows the landing position of each block (not connected) in the water tank bottom face in the experiment of a comparative example. ２個のブロックをロープで連結したときのブロック同士の好ましい間隔を説明するための側面図である。It is a side view for demonstrating the preferable space | interval of blocks when connecting two blocks with a rope.

符号の説明Explanation of symbols

１１，１２，１３ ブロック（ブロック状物）
１１ａ、１２ａ、１３ａ 接続部
１６，１７ ロープ（連結部材）
２０ 運搬船
２１ ブロック
２２ ロープ
Ｍ 基礎マウンド

11, 12, 13 blocks (block-shaped objects)
11a, 12a, 13a Connection part 16, 17 Rope (connection member)
20 Carrier 21 Block 22 Rope M Foundation Mound

Claims (2)

略六面体状のブロック状物を運搬船に多数積み込み、前記運搬船を所定の水域に移動させた後に前記多数のブロック状物を水中に投入し水中で落下させることにより水底の目標地点に水中構造物を構築するためのブロック状物の投入方法であって、
前記ブロック状物を２個ずつ柔軟性のある連結部材により、前記ブロック状物同士の最大の面間距離が前記ブロック状物の一片の長さの１乃至５倍になるようにルーズに連結し、
前記多数のブロック状物を、前記運搬船の船倉内において前記連結した２個のブロック状物が前記運搬船の長さ方向に対して平行にかつ直線上に並ぶように配置するとともにワイヤーロープで支持しながら前記長さ方向と直交する方向に向けかつ水平方向に対し傾斜させて配置し、
前記ワイヤーロープを切り離すことで前記多数のブロック状物を前記運搬船の船底から前記２個ずつルーズに連結した状態で水中に投入し水中で落下させることを特徴とするブロック状物の水中投入方法。 A large number of substantially hexahedral block-like objects are loaded on a transport ship, and after the transport ship is moved to a predetermined water area, the many block-like objects are poured into the water and dropped in the water to drop an underwater structure at a target point on the bottom of the water. It is a method of charging a block-like object for construction ,
The connecting member is flexible the block-like material by two, coupled loosely so that the maximum distance between surfaces between the block-like material is 1 to 5 times the length of a piece of the block-like material ,
The plurality of block-like objects are arranged so that the two connected block-like objects are aligned in a straight line in parallel with the length direction of the carrier ship and supported by a wire rope in the hold of the carrier ship. While facing the direction perpendicular to the length direction and inclined with respect to the horizontal direction,
A method of throwing a block-shaped object into the water, wherein the block-shaped object is dropped into the water in a state of being loosely connected to each other from the bottom of the carrier ship by separating the wire rope . 前記ブロック状物に前記連結部材を接続するための接続部を設けたことを特徴とする請求項１に記載のブロック状物の水中投入方法。   2. The block-like object charging method according to claim 1, further comprising a connecting part for connecting the connecting member to the block-like object.
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JP5032765B2 (en) * 2005-12-13 2012-09-26 三曳マリン株式会社 Block charging method for building upwelling flow generating structure and charging device used therefor
JP4970024B2 (en) * 2006-12-25 2012-07-04 東亜建設工業株式会社 Method of throwing stones and formation method of seabed mound by throwing stones
JP4739444B2 (en) * 2009-10-27 2011-08-03 株式会社人工海底山脈研究所 Block loading / dropping method
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