JP4446612B2 - Ships with collision bulkheads at the stern - Google Patents

Ships with collision bulkheads at the stern Download PDF

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Publication number
JP4446612B2
JP4446612B2 JP2001017232A JP2001017232A JP4446612B2 JP 4446612 B2 JP4446612 B2 JP 4446612B2 JP 2001017232 A JP2001017232 A JP 2001017232A JP 2001017232 A JP2001017232 A JP 2001017232A JP 4446612 B2 JP4446612 B2 JP 4446612B2
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Japan
Prior art keywords
stern
collision
ship
bulkhead
bow
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Expired - Fee Related
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JP2001017232A
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Japanese (ja)
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JP2002220083A (en
Inventor
克哉 太田
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.)
Sumitomo Heavy Industries Marine and Engineering Co Ltd
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Sumitomo Heavy Industries Marine and Engineering Co Ltd
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Priority to JP2001017232A priority Critical patent/JP4446612B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、船舶の衝突時の安全対策として、船尾部に衝突隔壁を設けた船舶に係わるものである。
【0002】
【従来の技術】
船舶の衝突や座礁等により、積み荷が流出する事故が後を断たず、その都度、海洋汚染の問題が発生している。
船舶には、船級協会の規則によって、船首側には所定の位置に水密隔壁を設けることが定められており、船首部の衝突時の安全対策が図られている。
【0003】
また、同規則には船尾隔壁および機関室隔壁を設けることも定められており、船舶が座礁したときにも浸水する区画を少なく抑えるように安全対策が図られている。
さらに、最近の船舶では船底あるいは船側について、二重船底あるいは二重船側を採用することにより事故を最小限に抑える方策も図られている。
【0004】
図3、図4にタンカーの概略構造を例示している。1は船体であり、2は船首部水密隔壁である。該船首部水密隔壁2は、上甲板から船底まで、および左右両舷まで船首部の横断面全面に設けられ、最も船首側にあって、衝突隔壁と呼ばれている(以下船首部衝突隔壁とする)。
【0005】
3は船倉であり、4は船倉隔壁である。5は二重船底、6は二重船側を示す。また、7は機関室、8はポンプ室、9は機関室隔壁兼船尾隔壁であり、10は二重船底5や二重船側6間に配置されたバラストタンクである。なお、11は居住区、12は舵取機室を示す。
【0006】
船首部衝突隔壁2は、船舶が衝突した際、船舶の安全を確保する隔壁としてとらえられていることから、衝突時船体の損傷が及ばず、かつ、該衝突隔壁2により形成される船首部区画が過大にならない位置に設けるように定められている。
つまり、船首部衝突隔壁を設ける位置は、船の乾玄用長さ(Lf)の前端からの距離が0.05Lfまたは10mの内小さい値以上で、かつ、0.08Lfを超えない位置とされている。
【0007】
このように、船舶は通常前進するものであるから、船首部の衝突に対する安全策は構じられているが、船尾部隔壁、機関室隔壁に対しては前記したような隔壁を設ける位置は定められておらず、船尾部の衝突に対応する安全性を考慮した方策は何ら図られていない現状にある。
【0008】
最近、氷海域を航行するため砕氷能力を備え、氷海域では後進させ、砕氷しながら、後進航行する船舶も建造されている。このような船舶においては、船尾部の傾斜を大きくして砕氷部を形成しており、普通の船舶形状と較べて船尾部が長くなっている。このような船舶に対して、後進航行時に船尾部が衝突し、損傷した際の安全性を高めることが求められている。
【0009】
【発明が解決しようとする課題】
本発明は、船尾部に砕氷部を形成し後進航行する船舶において、船尾部が衝突し、損傷した際の浸水の規模を小さく抑え、十分な復元性を確保し、船舶の安全性を高めることを目的とする。
【0010】
【課題を解決するための手段】
船尾部に砕氷部を形成し後進航行する船舶において、船首部の衝突隔壁を設ける位置に対応する船尾部の位置として船尾端からの距離が0.05Lfまたは10mの内小さい方の値以上で、かつ、0.08Lfを超えない位置に、船尾部衝突隔壁を設けるようにした。船首部の衝突隔壁を設ける位置と同等の距離を船尾端からとった位置に、船尾部衝突隔壁を設けるようにした。
【0011】
【発明の実施の形態】
以下図に沿って、本発明の実施の形態について説明する。なお、図3、図4に示す従来型と同等の部分については同じ符号を付し、詳細な説明は省略する。
図1は本発明による船尾部衝突隔壁を設けた船舶の側面図であり、図2は同平面図である。
【0012】
さて、13は本発明による船尾部衝突隔壁であって、該船尾部衝突隔壁13も前記船首部衝突隔壁2と同様に、上甲板から船底まで、および左右両舷まで船尾部の横断面全面に設けられている。
また、該船尾部衝突隔壁13を設ける位置も、船級協会で定める船首部の衝突隔壁を設ける位置に対応する船尾部の位置としている。
【0013】
これは、後進時には船尾部を前方と見立てて、船首部の衝突隔壁を設ける位置と同等の距離を船尾端からとった位置に船尾部衝突隔壁13を設けている。
つまり、船尾部が衝突した際、船体の損傷が及ばず、かつ、該船尾部衝突隔壁13により形成される船尾部区画が過大とならない位置となる。
【0014】
なお、船級協会の規則では、船首部における衝突の位置を、船の乾玄用長さの前端に想定して定めたものであり、したがって、船首部衝突隔壁を設ける位置を船の乾玄用長さの前端からの距離lで定めている。
一方、船尾部においては、船尾形状からみて、船尾端が衝突する可能性が高いと想定される。
【0015】
したがって、船尾部衝突隔壁13を船尾端から所定の位置に設けるようにした。つまり、船尾端から船尾部衝突隔壁13までの距離l′を、0.05Lfまたは10mの内小さい方の値以上で、かつ、0.08Lfを超えない位置に設けるようにした。
【0016】
なお、14はポッド型推進器であって、プロペラを備え、モータを内蔵したポッドを船尾部船体の下方に、ストラットによって回転可能に取り付け、モータによりプロペラを駆動し、推進力を得る推進器である。
後進時にはポッドを180°回転して航行する。ストラットは舵取機室12に設置された回転装置によって回転される。
【0017】
本発明の構成は以上の通りであって、船尾部が損傷した場合でも、船尾部衝突隔壁13が船尾部からの浸水を防止することになる。
特に、船尾部に砕氷部を形成し、前後方向どちらへも航行する船舶では、船尾部が衝突する可能性があること、また、船尾部が長くなり、その容積が大きくなるので、船尾部衝突隔壁を設け、船尾部区画が過大にならないようにすることは、安全対策上、極めて有効である。
【0018】
【発明の効果】
本発明は、船尾部に衝突隔壁を設けたので、仮に船尾部が衝突し、損傷した場合でも浸水の規模を小さく抑え、十分な復元性を確保でき、著しく船舶の安全性を高めることができた。
【図面の簡単な説明】
【図1】本発明による船尾部衝突隔壁を設けた船舶の側面図。
【図2】同平面図。
【図3】従来の船舶の側面図。
【図4】同平面図。
【符号の説明】
1 船体 2 船首部衝突隔壁
3 船倉 4 船倉隔壁
5 二重底 6 二重側壁
7 機関室 8 ポンプ室
9 機関室隔壁兼船尾隔壁 10 バラストタンク
11 居住区 12 舵取機室
13 船尾部衝突隔壁 14 推進器
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ship provided with a collision partition at the stern as a safety measure in the event of a ship collision.
[0002]
[Prior art]
Due to the collision of ships and grounding, there is no end to accidents where cargo flows out, and each time there is a problem of marine pollution.
Ships are provided with a watertight bulkhead at a predetermined position on the bow side according to the rules of the classification society, and safety measures are taken when the bow collides.
[0003]
The regulation also provides for a stern bulkhead and an engine compartment bulkhead, and safety measures are taken to minimize the number of compartments that are flooded when a ship is stranded.
Furthermore, in recent ships, measures have been taken to minimize accidents by adopting the double bottom or double ship side for the bottom or ship side.
[0004]
3 and 4 illustrate the schematic structure of the tanker. 1 is a hull, and 2 is a watertight bulkhead at the bow. The bow watertight bulkhead 2 is provided on the entire cross section of the bow from the upper deck to the bottom of the ship, and on both sides of the bow. To do).
[0005]
3 is a hold and 4 is a hold bulkhead. 5 indicates a double ship bottom, and 6 indicates a double ship side. Further, 7 is an engine room, 8 is a pump room, 9 is an engine room bulkhead / stern bulkhead, and 10 is a ballast tank disposed between the double ship bottom 5 and the double ship side 6. In addition, 11 shows a residence area and 12 shows a steering machine room.
[0006]
The bow collision bulkhead 2 is regarded as a bulkhead that ensures the safety of the ship when the ship collides, so that the hull is not damaged at the time of collision, and the bow section formed by the collision bulkhead 2 It is stipulated that it should be provided at a position where it does not become excessive.
In other words, the position where the bow collision partition is provided is a position where the distance from the front end of the length of the dry door (Lf) of the ship is not less than 0.05 Lf or 10 m and not more than 0.08 Lf. ing.
[0007]
In this way, since the ship normally moves forward, safety measures against a collision at the bow are provided, but the position where the bulkhead as described above is provided for the stern bulkhead and engine room bulkhead is determined. No measures have been taken in consideration of safety in response to a stern collision.
[0008]
Recently, a ship has been built that has ice-breaking capability for navigating the ice sea area. In such a ship, the slope of the stern part is increased to form an ice breaking part, and the stern part is longer than the normal ship shape. For such a ship, it is required to improve safety when the stern part collides and is damaged during backward travel.
[0009]
[Problems to be solved by the invention]
The present invention provides an ice breaker at the stern part that travels backward, and the stern part collides and suppresses the scale of inundation when damaged, ensuring sufficient resilience and improving the safety of the ship. With the goal.
[0010]
[Means for Solving the Problems]
In a ship that travels backward by forming an ice breaking part at the stern part, the distance from the stern end as the position of the stern part corresponding to the position at which the collision bulkhead is provided at the bow part is 0.05 Lf or 10 m or more of the smaller value. In addition , a stern collision partition is provided at a position not exceeding 0.08 Lf . The stern collision bulkhead is provided at a position that is the same distance from the stern end as the position where the bow bulkhead is provided.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected about the part equivalent to the conventional type shown in FIG. 3, FIG. 4, and detailed description is abbreviate | omitted.
FIG. 1 is a side view of a ship provided with a stern collision partition according to the present invention, and FIG. 2 is a plan view thereof.
[0012]
Reference numeral 13 denotes a stern collision bulkhead according to the present invention, and the stern collision bulkhead 13 is also formed on the entire cross section of the stern from the upper deck to the bottom of the ship and to the left and right sides, like the bow collision bulkhead 2. Is provided.
The position at which the stern collision partition 13 is provided is also the position of the stern corresponding to the position at which the collision partition at the bow determined by the classification society is provided.
[0013]
In this case, the stern collision bulkhead 13 is provided at a position at a distance equivalent to the position at which the collision bulkhead of the bow portion is provided from the stern end, assuming that the stern portion is forward.
That is, when the stern part collides, the hull is not damaged, and the stern section formed by the stern collision partition wall 13 does not become excessive.
[0014]
According to the rules of the classification society, the position of the collision at the bow is assumed to be at the front end of the length of the ship's dry-airway. It is determined by the distance l from the front end of the length.
On the other hand, in the stern part, it is assumed that the stern end is likely to collide with the stern shape.
[0015]
Therefore, the stern collision partition wall 13 is provided at a predetermined position from the stern end. That is, the distance l ′ from the stern end to the stern collision partition wall 13 is set to a position that is not less than 0.05 Lf or 10 m, and not more than 0.08 Lf.
[0016]
Reference numeral 14 denotes a pod type propulsion device, which includes a propeller, and a pod with a built-in motor is attached below the stern hull so as to be rotatable by a strut, and the propeller is driven by the motor to obtain a propulsive force. is there.
When going backwards, the pod is rotated 180 ° for navigation. The strut is rotated by a rotating device installed in the steering machine room 12.
[0017]
The configuration of the present invention is as described above, and even when the stern portion is damaged, the stern collision partition wall 13 prevents inundation from the stern portion.
In particular, in a ship that has an ice breaker at the stern and sails in both the front and rear directions, the stern may collide, and the stern becomes longer and its volume increases. It is extremely effective for safety measures to provide a bulkhead so that the stern section is not excessive.
[0018]
【The invention's effect】
In the present invention, since the collision bulkhead is provided at the stern part, even if the stern part collides and is damaged, the scale of the inundation can be kept small, sufficient resilience can be secured, and the safety of the ship can be remarkably improved. It was.
[Brief description of the drawings]
FIG. 1 is a side view of a ship provided with a stern collision partition according to the present invention.
FIG. 2 is a plan view of the same.
FIG. 3 is a side view of a conventional ship.
FIG. 4 is a plan view of the same.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hull 2 Bow part impact bulkhead 3 Ship hold 4 Ship hold bulkhead 5 Double bottom 6 Double side wall 7 Engine room 8 Pump room 9 Engine room bulkhead / stern bulkhead 10 Ballast tank 11 Residential area 12 Steering machine room 13 Stern collision bulkhead 14 Propeller

Claims (2)

船尾部に砕氷部を形成し後進航行する船舶において、船首部の衝突隔壁を設ける位置に対応する船尾部の位置として船尾端からの距離が0.05Lfまたは10mの内小さい方の値以上で、かつ、0.08Lfを超えない位置に、船尾部衝突隔壁を設けることを特徴とする船尾部に衝突隔壁を設けた船舶。In a ship that travels backward by forming an ice breaking part at the stern part, the distance from the stern end as the position of the stern part corresponding to the position at which the collision bulkhead is provided at the bow part is 0.05 Lf or 10 m or more of the smaller value. And the ship which provided the collision bulkhead in the stern part provided with the stern collision bulkhead in the position which does not exceed 0.08Lf . 船首部の衝突隔壁を設ける位置に対応する船尾部の位置として、船首部の衝突隔壁を設ける位置と同等の距離を船尾端からとった位置としたことを特徴とする請求項1記載の船尾部に衝突隔壁を設けた船舶。  2. The stern portion according to claim 1, wherein the stern portion corresponding to the position where the collision bulkhead is provided at the bow portion is a position taken from the stern end at a distance equivalent to the position where the collision bulkhead is provided at the bow portion. Ship with a collision partition.
JP2001017232A 2001-01-25 2001-01-25 Ships with collision bulkheads at the stern Expired - Fee Related JP4446612B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001017232A JP4446612B2 (en) 2001-01-25 2001-01-25 Ships with collision bulkheads at the stern

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Application Number Priority Date Filing Date Title
JP2001017232A JP4446612B2 (en) 2001-01-25 2001-01-25 Ships with collision bulkheads at the stern

Publications (2)

Publication Number Publication Date
JP2002220083A JP2002220083A (en) 2002-08-06
JP4446612B2 true JP4446612B2 (en) 2010-04-07

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CN114940233A (en) * 2022-07-08 2022-08-26 上海外高桥造船有限公司 Anti-collision wall structure and living building and ship comprising same

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