A double hull is a ship hull design and construction method where the bottom and sides of the ship have two complete layers of watertight hull surface: one outer layer forming the normal hull of the ship, and a second inner hull which is some distance inboard, typically by a few feet, which forms a redundant barrier to seawater in case the ...

2021年7月13日 · The space within the double bottom (that is, between the tank top, and outer bottom shell) is used up for carrying ballast, fuel oil, dirty oil, freshwater, and other consumables. One of the most important factors in designing a double bottom of a ship is deciding the height of the double bottom.

1 A double bottom shall be fitted extending from the collision bulkhead to the afterpeak bulkhead, as far as this is practicable and compatible with the design and proper working of the ship.

2015年12月14日 · – ARRANGEMENT OF DOUBLE BOTTOM & FRAMING IN MACHINERY SPACE – A double bottom in a ship is a ship hull construction method where the bottom of the ship has two distinct layers of watertight hull floor where one of the outer layer forming the normal hull of the ship, and the inner layer forms a superfluous barrier to seawater in case the ...

Double bottom tanks: A double bottom is a ship hull design and construction method where the bottom of the ship has two complete layers of watertight hull surface: one outer layer forming the normal hull of the ship and a second inner hull which is somewhat higher in the ship, which forms a redundant barrier to seawater in case the outer hull ...

Double bottom. The space in between the two bottoms is called a double bottom space and is often used as storage tanks for storing ballast water, bilge water, sewage etc. There will be inner and outer layers of the hull on the bottom as well as the sides of the tanker ships. It saves the ship from water ingress or flooding if the outer layer fails.

For a cargo ship of 80 m in length and upwards or for a passenger ship, proof of equivalent protection is to be shown by demonstrating that the ship is capable of withstanding bottom damages as specified in paragraph 8 of SOLAS Chapter II-1 Regulation 9 - Double bottoms in passenger ships and cargo ships other than tankers.

Single skin construction, or double skin construction where any part of the longitudinal bulkhead is located within B/5 or 11,5 m, whichever is less, inboard from the ship’s side at right angles to the centreline at the assigned summer load line. Length, L, of 150 m or above.

2021年7月30日 · The space within the double bottom (that is, between the tank top, and outer bottom shell) is used up for carrying ballast, fuel oil, dirty oil, fresh water, and other consumables. One of the most important factors in designing a double bottom of a ship, is deciding the height of the double bottom.

2019年4月17日 · The document discusses the bottom structure of ships, including the functions and types of bottoms, keels, and floors. It provides details on single bottom and double bottom construction. Single bottoms are used in smaller vessels, while larger ships generally have double bottoms for added protection against damage.