JP2023504152A - Ship construction method applying dry dock non-floating tandem construction method - Google Patents
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- 238000010276 construction Methods 0.000 title claims abstract description 78
- 239000013535 sea water Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000013505 freshwater Substances 0.000 claims description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- 239000000460 chlorine Substances 0.000 claims description 4
- 239000010779 crude oil Substances 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 238000010612 desalination reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- 230000001934 delay Effects 0.000 description 3
- 238000009435 building construction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C1/00—Dry-docking of vessels or flying-boats
- B63C1/08—Graving docks
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Abstract
同一のドライドック内で１列又は２列に複数の同種又は異種の船舶ブロックをそれぞれ建造するが、ドックヘッド隣接領域で部分進水船舶の船殻工事を行い、ドックゲート隣接領域で進水船舶の船殻部分工事を行う段階と、前記部分進水船舶の内部にポンプを介して強制注水する段階と、前記ドライドックのドックゲートを開放して海水を流入させて前記進水船舶を浮揚させ、前記部分進水船舶を浮揚させない段階と、浮揚された前記進水船舶を前記ドックゲートの外部岸壁に搬出する段階と、前記ドックゲートを閉鎖して前記ドライドックから海水を排出する段階と、同じ位置で前記部分進水船舶に対する残余船殻部分工事を行う段階と、を含んでなる、ドライドック未浮揚タンデム工法を適用した船舶建造工法を提供する。【選択図】図２Multiple ship blocks of the same type or different types are constructed in one or two lines in the same dry dock, respectively, but the hull construction of partially launched ships is performed in the area adjacent to the dock head, and the ship is launched in the area adjacent to the dock gate. a step of forcibly injecting water into the partially launched vessel through a pump; and opening the dock gate of the dry dock to allow seawater to flow in to float the launched vessel. unfloating the partially launched vessel; unloading the floated launched vessel to the outer quay of the dock gate; closing the dock gate to discharge seawater from the dry dock; and performing the remaining hull partial construction on the partially launched ship at the same position. [Selection drawing] Fig. 2
Description
本発明は、同一のドライドック内で同種又は異種の船舶建造の際に進水船舶と部分進水船舶を同時に建造しながら、進水船舶の搬出時に部分進水船舶をバランスを保った状態で安定的に浮揚させないことができ、部分進水船舶の建造段階に相応して異なるように強制注水して進水船舶の進水に影響を与えないことができる、ドライドック未浮揚タンデム工法を適用した船舶建造工法に関する。 In the present invention, when constructing ships of the same type or different types in the same dry dock, a launching ship and a partially-launching ship are constructed at the same time, and the partially-launching ship is kept in balance when the launching ship is unloaded. Apply the dry dock non-floating tandem construction method that can not be stably floated and can be forced to inject water differently according to the construction stage of the partially launched ship without affecting the launching of the ship. related to the ship construction method.
周知の如く、効率的な大型船舶建造のためにドライドック方式（乾ドック方式）によって船舶を建造するが、ドライドック内で船舶ブロックを建造し、ドライドックに海水を流入させて船舶を浮揚させた後、岸壁に引き揚げて搬出する。
一方、ドライドック内の余裕空間を活用して進水船舶と部分進水船舶を同時に建造するようにするタンデム工法が適用されている。
As is well known, a ship is built by a dry dock method (dry dock method) for efficient construction of a large ship. After that, it is pulled up to the quay and carried out.
On the other hand, a tandem construction method is applied in which a launching ship and a partially launching ship are constructed simultaneously by utilizing the spare space in the dry dock.
例えば、超大型コンテナ船の進水船舶とＶＬＣＣ（Ｖｅｒｙ Ｌａｒｇｅ Ｃｒｕｄｅ ｏｉｌ Ｃａｒｒｉｅｒ）の部分進水船舶のタンデム工法適用の際に、ドライドック内への海水流入時に、部分進水船舶の隔壁が形成された貨物タンク区域の浮力により船尾端側に不均衡に傾いて浮揚され、タグ（ｔｕｇ）船による進水船舶の引き揚げ時に、タグ船のスクリュー回転によって部分進水船舶を支える盤木が倒れて部分進水船舶が転倒される可能性があるため、超大型コンテナ船の進水船舶と部分進水船舶を同時に建造することができないという限界がある。 For example, when a tandem construction method is applied to a launch vessel of a very large container ship and a partially-launched VLCC (Very Large Crude Oil Carrier), bulkheads of the partially-launched vessel are formed when seawater flows into the dry dock. Due to the buoyancy of the cargo tank area, the buoyancy of the cargo tank area causes it to float unbalancedly to the stern end. There is a limitation that a super large container ship launching ship and a partial launching ship cannot be built at the same time because the launching ship may overturn.
このような限界を解消するための先行技術として、韓国登録特許公報第１０－０７９６４１０号が開示されているが、従来のタンデム建造工法に適用される浸水工法は、ドック内でタンデム建造工法によって船舶ブロックを建造する段階と、浸水対象船舶に主エンジン、尾及び中間軸、船尾ブロック、ラッシングブリッジ又はハッチカバーの主要搭載物を設置する段階と、進水船舶の浮揚時に浸水対象船舶のカーゴ／ホールドバラスト及び一部二重底タンクに水を自然流入させて船舶を同じ位置に浸水させる段階と、進水船舶の曳航後、浸水した船舶建造を行う段階と、を含んでなり、搭載物量を全て搭載した後、船体を浸水させて、船体移動なしに同じ位置で建造を完了するようにする。 Korean Patent Publication No. 10-0796410 is disclosed as a prior art for overcoming such limitations. The steps of constructing the blocks and installing the primary load of main engines, tail and intermediate shafts, stern blocks, lashing bridges or hatch covers on the submerged vessel and cargo/hold of the submerged vessel when the launching vessel floats. flooding the ship in place with the natural influx of water into the ballast and partial double bottom tanks; After loading, the hull is submerged so that construction can be completed in the same position without hull movement.
しかし、部分進水船舶に主要搭載物が搭載された状態で、進水船舶の浮揚のために流入する水によってカーゴ／ホールドバラスト及び一部二重底タンクに自然流入させて部分進水船舶を浸水させるが、図１に示すように、進水船舶を進水する前に部分進水船舶に主要搭載物の搭載を全て完了した後にのみ可能であるため、進水船舶の建造が完了した状態で部分進水船舶の建造段階に応じて進水船舶の引き揚げ時期が遅延するという問題点があり、ドック内に自然流入した水、すなわち海水によって部分進水船舶を浸水させて塩分及び塩素による船体腐食の可能性があり、船体腐食防止のための先行工程又は後行工程を伴って工期が遅延するという問題点がある。 However, with the partially-launched ship on board with its primary payload, the water entering for flotation of the launching ship naturally flows into the cargo/hold ballast and some of the double-bottom tanks to partially launch the ship. Completed construction of the launching vessel, as flooding is only possible after all major payloads have been installed on the partially-launched vessel prior to launching the launching vessel, as shown in Figure 1. However, there is a problem that the timing of salvage of the partially launched ship is delayed according to the construction stage of the partially launched ship. There is a potential for corrosion, and there is the problem of delays in the construction period with preceding or following processes to prevent hull corrosion.
このため、部分進水船舶の建造段階とは無関係に進水船舶を引き揚げるようにして工期遅延を最小化し、部分進水船舶の浸水に備えた船体腐食を最小限に抑えることができる、改善されたタンデム工法が求められる。 For this reason, it is possible to minimize the delay in the construction period by pulling up the partially launched vessel regardless of the construction stage of the partially launched vessel, and minimize the hull corrosion in preparation for the submersion of the partially launched vessel. A tandem construction method is required.
本発明の目的は、部分進水船舶の建造段階とは無関係に進水船舶を引き揚げるようにして工期遅延を最小化し、部分進水船舶の浸水に備えた船体腐食を最小限に抑えることができる、ドライドック未浮揚タンデム工法を適用した船舶建造工法を提供することにある。 It is an object of the present invention to raise the partially launched ship regardless of the construction stage of the partially launched ship, thereby minimizing construction delays and minimizing hull corrosion due to flooding of the partially launched ship. To provide a ship construction method to which a dry dock non-floating tandem construction method is applied.
上記の目的を達成するために、本発明は、同一のドライドック内で１列又は２列に複数の同種又は異種の船舶ブロックをそれぞれ建造するが、ドックヘッド隣接領域で部分進水船舶の船殻工事を行い、ドックゲート隣接領域で進水船舶の船殻部分工事を行う段階と、前記部分進水船舶の内部にポンプを介して強制注水する段階と、前記ドライドックのドックゲートを開放して海水を流入させて前記進水船舶を浮揚させ、前記部分進水船舶を浮揚させない段階と、浮揚された前記進水船舶を前記ドックゲートの外部岸壁に搬出する段階と、前記ドックゲートを閉鎖して前記ドライドックから海水を排出する段階と、同じ位置で前記部分進水船舶に対する残余船殻部分工事を行う段階と、を含んでなる、ドライドック未浮揚タンデム工法を適用した船舶建造工法を提供する。 To achieve the above objects, the present invention builds a plurality of homogeneous or heterogeneous ship blocks in one or two rows, respectively, in the same dry dock, but in the dock head adjacent area, the ships of the partially launched ships. performing hull construction and performing partial hull construction of the launched vessel in an area adjacent to the dock gate; forcibly injecting water into the partially launched vessel through a pump; and opening the dock gate of the dry dock. a step of allowing seawater to flow in to float the launched vessel and not allowing the partially-launched vessel to float; carrying out the floated launched vessel to the outer quay of the dock gate; and closing the dock gate. and discharging seawater from the dry dock, and performing residual hull construction work on the partially launched ship at the same position. offer.
ここで、前記部分進水船舶の浮力を相殺し且つＣＯＧ（Ｃｅｎｔｅｒ ｏｆ Ｇｒａｖｉｔｙ）とのバランスを保つように、前記部分進水船舶の隔壁が形成されたカーゴタンクの内部に前記ポンプを介して清水又は海水を強制注水することができる。 Here, in order to offset the buoyancy of the partially-launched vessel and maintain a balance with COG (Center of Gravity), fresh water is supplied through the pump to the interior of the cargo tank in which the bulkhead of the partially-launched vessel is formed. Alternatively, seawater can be forcibly injected.
このとき、前記部分進水船舶のデッキハウス及びエンジンケーシングの搭載時には、前記エンジンケーシングに隣接する左右一対のＳＣＯタンクにそれぞれ強制注水し、前記部分進水船舶のデッキハウス及びエンジンケーシングの未搭載時には、前記エンジンケーシングに隣接する左右一対のＳＣＯタンクにそれぞれほとんどを強制注水し、左右一対のスロップタンクにそれぞれ残りを強制注水することができる。 At this time, when the deck house and the engine casing of the partially-launched vessel are mounted, water is forcibly injected into a pair of left and right SCO tanks adjacent to the engine casing, and when the deck house and the engine casing of the partially-launched vessel are not mounted. A pair of left and right SCO tanks adjacent to the engine casing can be forcibly injected with most of the water, and a pair of left and right slop tanks can be forcibly injected with the remainder.
また、前記ＳＣＯタンク及び前記スロップタンクに清水又は海水を強制注水することができる。 Also, fresh water or seawater can be forcibly injected into the SCO tank and the slop tank.
また、海水の強制注水の際に、海水淡水化装置を介して塩分及び塩素を除去した後で注水することができる。 Also, when seawater is forcibly injected, it can be injected after removing salt and chlorine through a seawater desalination device.
また、前記進水船舶の搬出位置で後続船舶の船殻部分工事を行う工程をさらに含むことができる。 Also, the method may further include the step of performing hull portion construction of the succeeding ship at the unloading position of the launching ship.
本発明によれば、別途清水又は海水を強制注水して船体腐食を最小限に抑えながら部分進水船舶を浮揚させず、同一のドライドック内で同種又は異種の船舶建造の際に進水船舶と部分進水船舶を同時に建造しながら、進水船舶の搬出時に部分進水船舶をバランスを保った状態で安定的に浮揚させないことができ、部分進水船舶の建造段階に相応して異なるように強制注水して進水船舶の進水に影響を与えないことができ、タンデム工法によって工期を短縮しながら大型建造船舶を連続的に建造可能にすることができるという効果がある。 According to the present invention, a partially launched ship is not floated while minimizing hull corrosion by forcibly injecting fresh water or seawater separately, and a ship is launched during construction of the same or different ship in the same dry dock. and partially-launched ships can be built at the same time, and the partially-launched ship can not be stably floated in a balanced state when the launching ship is carried out, and the partial-launched ship can be built differently according to the construction stage of the partially-launched ship. The tandem construction method has the effect of making it possible to continuously build large ships while shortening the construction period.
以下、添付図面を参照して、本発明の実施形態について、本発明の属する技術分野における通常の知識を有する者が容易に実施し得るように詳細に説明する。本発明は、様々な異なる形態で実現でき、ここで説明する実施形態に限定されない。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry them out. This invention may be embodied in many different forms and is not limited to the embodiments set forth herein.
図２を参照すると、本発明の実施形態によるドライドック未浮揚タンデム工法を適用した船舶建造工法は、全体的に、船殻工事及び船殻部分工事遂行段階（Ｓ１１０）と、強制注水段階（Ｓ１２０）と、海水流入段階（Ｓ１３０）と、進水船舶の搬出段階（Ｓ１４０）と、海水排水段階（Ｓ１５０）と、残余船殻部分工事遂行段階（Ｓ１６０）と、後続船舶の船殻部分工事遂行段階（Ｓ１７０）とを含んでなり、船舶を連続的にタンデム建造可能にすることを要旨とする。 Referring to FIG. 2, the ship construction method applying the dry dock non-floating tandem construction method according to an embodiment of the present invention generally includes a hull construction and hull partial construction stage (S110) and a forced water injection stage (S120). ), the step of inflowing seawater (S130), the step of unloading the launched ship (S140), the step of draining seawater (S150), the step of performing the remaining hull portion work (S160), and the step of performing the hull portion work of the succeeding ship. and a step (S170), and the gist is to enable continuous tandem construction of ships.
具体的には、図２～図５を参照して、本発明の実施形態によるドライドック未浮揚タンデム工法を適用した船舶建造工法について説明する。 Specifically, a ship construction method to which the dry dock non-floating tandem construction method according to the embodiment of the present invention is applied will be described with reference to FIGS. 2 to 5. FIG.
まず、船殻工事及び船殻部分工事遂行段階（Ｓ１１０）では、図３及び図５（ａ）に示すように、同一のドライドック内で１列又は２列に複数の同種船舶又は異種船舶の船舶ブロックをそれぞれ建造するが、ドックヘッド（ｄｏｃｋ ｈｅａｄ）隣接領域で部分進水船舶の船殻工事を行い、ドックゲート（ｄｏｃｋ ｇａｔｅ）隣接領域で進水船舶の船殻部分工事を行う。 First, in the hull construction and hull partial construction execution stage (S110), as shown in FIGS. The ship blocks are constructed respectively, and the hull construction of the partially launched ship is performed in the area adjacent to the dock head, and the partial hull construction of the launched vessel is performed in the area adjacent to the dock gate.
ここで、進水船舶又は部分進水船舶は、特に限定されないが、ＶＬＣＣ（Ｖｅｒｙ Ｌａｒｇｅ Ｃｒｕｄｅ ｏｉｌ Ｃａｒｒｉｅｒ）、超大型コンテナ船、ＬＮＧ運搬船、ＬＮＧ推進船又は化学製品運搬船の大型建造船舶などであり、５００ｍ以上の長さを有する同一のドライドック内で１列又は２列に４００ｍ前後の全長（ＬＯＡ、Ｌｅｎｇｔｈ Ｏｆ Ｏｖｅｒａｌｌ）を有する進水船舶と、１２０ｍ前後の全長を有する部分進水船舶とを同時に建造することができる。 Here, the launching vessel or partially launching vessel is not particularly limited, but includes a VLCC (Very Large Crude Oil Carrier), a very large container ship, an LNG carrier, an LNG propulsion ship, or a large-scale construction ship such as a chemical product carrier, Launched vessels with a total length of around 400m (LOA, Length Of Overall) and partially launched vessels with a total length of around 120m in one or two rows in the same dry dock with a length of 500m or more at the same time. can be built.
参考までに、ドックヘッドと部分進水船舶との間隔、及びドックゲートと進水船舶との距離は５ｍ前後の間隔を必要とし、部分進水船舶と進水船舶との距離は１０ｍ前後の間隔を必要とする。 For reference, the distance between the dock head and the partially launched vessel and the distance between the dock gate and the launched vessel should be about 5m, and the distance between the partially launched vessel and the launched vessel should be about 10m. need.
続いて、強制注水段階（Ｓ１２０）では、図３に示すように、部分進水船舶の内部にポンプＰを介して強制的に注水してドック内への海水の流入時に部分進水船舶、すなわち部分進水船舶の船首部が自己浮力によって浮揚されないようにする。 Subsequently, in the forced water injection step (S120), as shown in FIG. To prevent the bow of a partially launched vessel from being lifted by self-buoyancy.
つまり、水温と塩分と水圧に応じて可変する海水密度による部分進水船舶の浮力を相殺し且つＣＯＧ（Ｃｅｎｔｅｒ ｏｆ Ｇｒａｖｉｔｙ）とのバランスを保つように、部分進水船舶の隔壁が形成されたカーゴタンク（ｃａｒｇｏ ｔａｎｋ）の内部にポンプＰを介して清水又は海水を強制注水して部分進水船舶が定位置でブロック転倒防止のための盤木（ｓｕｐｐｏｒｔ）から浮揚されないようにする。 In other words, the bulkhead of the partially-launched vessel is formed so as to offset the buoyancy of the partially-launched vessel due to the seawater density that varies according to the water temperature, salinity, and water pressure, and to maintain a balance with the COG (Center of Gravity). Fresh water or seawater is forcibly injected into the cargo tank through a pump P to prevent the partially launched ship from being floated from a support for preventing the block from overturning at a fixed position.
一方、図４を参照すると、強制注水の際に、部分進水船舶のデッキハウス（Ｄ／Ｈ、Ｄｅｃｋ Ｈｏｕｓｅ）Ａ及びエンジンケーシング（ｅｎｇｉｎｅ ｃａｓｉｎｇ）Ｂの搭載時には、部分進水船舶の船首部、すなわちエンジンケーシングＢに隣接する左右一対のＳＣＯ（Ｓｉｄｅ Ｃｒｕｄｅ Ｏｉｌ）タンク（ＳＣＯ ＴＫ（Ｐ）、（Ｓ））にそれぞれ強制注水するが、ＶＬＣＣ（Ｖｅｒｙ Ｌａｒｇｅ Ｃｒｕｄｅ ｏｉｌ Ｃａｒｒｉｅｒ）を基準に、それぞれ８０００トン前後で注水して部分進水船舶の船首部が浮揚されないようにしながら、船尾の後端側に偏ったＣＯＧとバランスをとるようにして船尾の前後が不均衡に傾いて部分浮揚されないようにする。例えば、Ｎｏ．５ ＳＣＯ ＴＫ（Ｐ）には８０００トンを注水し、Ｎｏ．５ ＳＣＯ ＴＫ（Ｓ）には７，９５０トンを注水して合計１５，９５０トンを注水することができる。 On the other hand, referring to FIG. 4, when the deck house (D/H) A and the engine casing B of the partially-launched vessel are installed during forced water injection, the bow of the partially-launched vessel, That is, a pair of left and right SCO (Side Crude Oil) tanks (SCO TK (P), (S)) adjacent to the engine casing B are forcibly injected with water. While preventing the bow of the partially-launched vessel from being floated by injecting water at the front and rear, it is balanced with the COG biased to the rear end side of the stern to prevent the front and rear of the stern from tilting unbalancedly and being partially floated. . For example, No. No. 5 SCO TK (P) was injected with 8000 tons of water. The 5 SCO TK(S) can be filled with 7,950 tons of water for a total of 15,950 tons.
又は、部分進水船舶のデッキハウスＡ及びエンジンケーシングＢの未搭載時には、搭載時に比べてＣＯＧが船尾の後端側に少なく偏り、エンジンケーシングＢに隣接する左右一対のＳＣＯタンクにそれぞれほとんどを強制注水し、左右一対のスロップタンク（ＳＬＯＰ ＴＫ（Ｐ）、（Ｓ））にそれぞれ残りを強制注水するが、ＶＬＣＣを基準に、左右一対のＳＣＯタンクにそれぞれ７０００トン前後で注水して左右一対のスロップタンクにそれぞれ８００トン前後で注水して船尾が浮揚しないようにしながら、船尾の後端側に相対的に少なく偏ったＣＯＧとバランスをとるようにして船尾の前後が不均衡に傾いて部分浮揚しないようにする。例えば、Ｎｏ．５ ＳＣＯ ＴＫ（Ｐ、Ｓ）にそれぞれ７１００トンを注水し、ＳＬＯＰ ＴＫ（Ｐ）には８６０トンを主水し、ＳＬＯＰ ＴＫ（Ｓ）には７５０トンを注水して合計１５８１０トンを注水することができる。 Alternatively, when the deck house A and the engine casing B of the partially launched ship are not installed, the COG is less biased toward the rear end of the stern than when installed, and most of the COG is forced to the pair of left and right SCO tanks adjacent to the engine casing B. Water is injected into a pair of left and right slop tanks (SLOP TK (P), (S)), and the rest is forcibly injected into each of them. Each slop tank is filled with water of around 800 tons to prevent the stern from floating, while the stern is tilted unbalanced and partially floated by balancing the COG, which is relatively less biased toward the rear end of the stern. try not to For example, No. 5 SCO TK (P, S) shall be injected with 7,100 tons each, SLOP TK (P) shall be injected with 860 tons, and SLOP TK (S) shall be injected with 750 tons, totaling 15,810 tons. can be done.
ここで、ＳＣＯタンク及びスロップタンクにポンプＰを介して清水又は海水を強制注水することができるが、海水の強制注水の際には、塩分及び塩素による船体の腐食を最小限に抑えるために海水淡水化装置を介して塩分及び塩素を除去した後で注水することもできる。 Here, the SCO tank and the slop tank can be forcibly injected with fresh water or seawater via the pump P. However, when the seawater is forcibly injected, seawater is used to minimize corrosion of the hull due to salt and chlorine. Water can also be injected after removing salt and chlorine via a desalinator.
このため、部分進水船舶の建造段階に相応して、異なる方式で清水又は海水を強制注水して、部分進水船舶のバランスを保った状態で安定的に浮揚させず、進水船舶の進水に影響を与えないため工期遅延を最小限に抑えることができる。 Therefore, depending on the construction stage of the partially-launched ship, it is necessary to forcibly inject fresh water or seawater into different methods to keep the partially-launched ship floating stably in a balanced state. Construction delays can be minimized as there is no impact on water.
参考までに、ポンプＰは、ドライドックに配置されるものと図示されているが、部分進水船舶に搭載されて強制注水するようにすることができ、スロップタンクは、各種タンクのクリーニング後に形成される油と海水との混合物、又は機関室から流れ出てくる廃油の油性混合物を貯留するタンクであって、油による海洋汚染を防止し且つ貨物油損失分を減少させる目的で配置される。 For reference, the pump P is shown as being located in a dry dock, but it could be mounted on a partially launched vessel and forced flooded, with the slop tanks formed after cleaning the various tanks. A tank for holding a mixture of oil and seawater discharged from the engine room, or an oily mixture of waste oil flowing out of the engine room, arranged for the purpose of preventing marine pollution by oil and reducing cargo oil losses.
続いて、海水流入段階（Ｓ１３０）では、図５（ｂ）に示すように、ドライドックのドックゲートを開放して海水を流入させて進水船舶を浮揚させ、部分進水船舶を定位置で浮揚させない。 Subsequently, in the seawater inflow step (S130), as shown in FIG. 5(b), the dock gate of the dry dock is opened to allow seawater to flow in to float the launched vessel, and the partially launched vessel is held at a fixed position. Do not levitate.
続いて、進水船舶の搬出段階（Ｓ１４０）では、図３及び図５（ｃ）に示すように、浮揚した進水船舶をタグ船によってドックゲートの外部岸壁に引き揚げて搬出する。
続いて、海水排水段階（Ｓ１５０）では、ドックゲートを閉鎖してドライドックから海水を排水する。
Subsequently, in the stage of unloading the launched vessel (S140), as shown in FIGS. 3 and 5(c), the floated launched vessel is pulled up to the outer quay of the dock gate by the tug and carried out.
Subsequently, in the step of draining seawater (S150), the dock gate is closed to drain seawater from the dry dock.
続いて、残余船殻部分工事遂行段階（Ｓ１６０）では、図５（ｄ）に示すように、部分進数船舶に強制注水された清水又は海水を排水し、浸水した同じ位置で部分進水船舶に対する残りの残余船殻部分工事を行って進水船舶を建造する。 Subsequently, in the remaining hull partial construction stage (S160), as shown in FIG. The rest of the remaining hull parts work will be done to build the launch vessel.
続いて、後続船舶の船殻部分工事遂行段階（Ｓ１７０）では、図５（ｄ）に示すように、進水船舶の搬出位置で後続船舶の船殻部分工事を行う。 Subsequently, in the hull construction work execution step for the succeeding ship (S170), as shown in FIG. 5(d), the hull construction work for the succeeding ship is performed at the unloading position of the launching ship.
したがって、前述したドライドック未浮揚タンデム工法を適用した船舶建造工法の構成によって、従来技術の浸水工法による進水船舶浮揚のために自然流入した海水によって主要搭載物が搭載された部分進水船舶を浸水させることと対比して、別途清水又は海水を強制注水して船体腐食を最小限に抑えながら部分進水船舶を浮揚させず、同一のドライドック内で同種又は異種の船舶建造の際に進水船舶と部分進水船舶を同時に建造しながら、進水船舶の搬出時に部分進水船舶をバランスを保った状態で安定的に浮揚させないことができ、また、部分進水船舶の建造段階に相応して異なるように強制注水して進水船舶の進水に影響を与えないことができ、タンデム工法によって工期を短縮しながら大型建造船舶を連続的に建造することができる。 Therefore, according to the structure of the ship construction method applying the dry dock non-floating tandem construction method described above, a partially launched ship with main payloads mounted by naturally inflowing seawater to float the launching ship by the conventional submerged construction method. In contrast to submerging, a separate forced injection of fresh or seawater is used to minimize hull corrosion while not floating a partially launched vessel and progressing during construction of the same or different vessel within the same dry dock. While building a water vessel and a partially-launched vessel at the same time, it is possible to keep the partially-launched vessel in a balanced state and not float stably when the launching vessel is carried out, and it is suitable for the construction stage of the partially-launched vessel. Therefore, it is possible to force water injection in different ways without affecting the launching of the launching ship, and the tandem construction method can shorten the construction period and continuously build large-scale construction ships.
以上、本発明を図面に示された実施形態を参照して説明した。しかし、本発明はこれに限定されず、本発明の属する技術分野における通常の知識を有する者によって本発明と均等な範囲に属する様々な変形例又は他の実施形態が可能である。よって、本発明の真正な保護範囲は、後続の特許請求の範囲によって定められる。 The invention has been described above with reference to the embodiments illustrated in the drawings. However, the present invention is not limited to this, and various modifications or other embodiments within the scope equivalent to the present invention can be made by those who have ordinary knowledge in the technical field to which the present invention belongs. Therefore, the true scope of protection of the present invention is defined by the following claims.
Claims (7)
前記部分進水船舶の内部にポンプを介して強制注水する段階と、
前記ドライドックのドックゲートを開放して海水を流入させて前記進水船舶を浮揚させ、前記部分進水船舶を浮揚させない段階と、
浮揚された前記進水船舶を前記ドックゲートの外部岸壁に搬出する段階と、
前記ドックゲートを閉鎖して前記ドライドックから海水を排出する段階と、
同じ位置で前記部分進水船舶に対する残余船殻部分工事を行う段階と、を含む
ことを特徴とするドライドック未浮揚タンデム工法を適用した船舶建造工法。 Multiple ship blocks of the same type or different types are constructed in one or two lines in the same dry dock, respectively, but the hull construction of partially launched ships is performed in the area adjacent to the dock head, and the ship is launched in the area adjacent to the dock gate. The stage of performing the hull partial construction of
forcibly injecting water into the partially launched vessel via a pump;
a step of opening the dock gate of the dry dock to allow seawater to flow into the launched vessel and not to float the partially launched vessel;
unloading the floated launched vessel to an outer quay of the dock gate;
closing the dock gate to discharge seawater from the dry dock;
and performing residual hull construction work on the partially launched ship at the same position.
請求項１に記載のドライドック未浮揚タンデム工法を適用した船舶建造工法。 Fresh water or seawater is supplied to the interior of the bulkhead-formed cargo tank of the partially-launched vessel through the pump so as to offset the buoyancy of the partially-launched vessel and maintain a balance with COG (Center Of Gravity). A ship construction method applying the dry dock non-floating tandem construction method according to claim 1, wherein water is forcibly injected.
請求項２に記載のドライドック未浮揚タンデム工法を適用した船舶建造工法。 The dry dock non-floating tandem construction method according to claim 2, wherein water is forcibly injected into a pair of left and right SCO (Side Crude Oil) tanks adjacent to the engine casing when the deck house and the engine casing of the partially launched ship are installed. ship construction method.
請求項２に記載のドライドック未浮揚タンデム工法を適用した船舶建造工法。 When the deck house and the engine casing of the partially launched ship are not installed, most of the left and right SCO tanks adjacent to the engine casing are forcibly injected with water, and the rest is forcibly injected into the left and right pair of slop tanks. A ship construction method applying the dry dock non-floating tandem construction method described in .
請求項３または４に記載のドライドック未浮揚タンデム工法を適用した船舶建造工法。 5. A ship construction method applying a dry dock non-floating tandem construction method according to claim 3 or 4, wherein fresh water or seawater is forcibly injected into said SCO tank and said slop tank.
請求項５に記載のドライドック未浮揚タンデム工法を適用した船舶建造工法。 6. A ship construction method applying the dry dock non-floating tandem construction method according to claim 5, wherein when seawater is forcibly injected, the water is injected after removing salt and chlorine through a seawater desalination device.
請求項１に記載のドライドック未浮揚タンデム工法を適用した船舶建造工法。
2. The ship construction method applying the dry dock non-floating tandem construction method according to claim 1, further comprising the step of carrying out hull part construction of the succeeding ship at the unloading position of the launching ship.
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