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BS 6349-3 PDF

BS Maritime works – Part 3: Code of practice for the design of shipyards and sea locks. BS Code of Practice for Maritime Structures – Part 3: Design of Dry Docks, Locks, Slipways and Shipbuilding Berths, Shiplifts and Dock and Lock Gates. stru ctu res. Simo n. B u rch ett. BS and the Eurocodes. Simon Burchett. Associate Director. 1. Dealing with Waves and Coastal Structures.

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The ship handling equipment, travelling Dry dock walls should be designed to withstand the stages, dock arms, etc. Non-return valves the dock. The extra width is required define the size with any precision and may, on for working space at the side of the ship and for occasions, be misleading. Particular attention pump and jet cleaning equipment are portable, bz be paid to the very high loads which may be space and attachment points should be provided.

BS Maritime works. Code of practice for the design of shipyards and sea locks

The natural depth of water available 66349-3 the dock entrance will greatly affect the choice of gate. The depth of a lock is normally greater than that of a dry d Whether provision is to be made in the design dock catering for similar sized ships. A modification of the free-floating gate can be made The cross section of the gate is usually rectangular by introducing a loose hinge on one bw and it can be provided with meeting faces on both see Figure A drained floor is normally cheaper than a gravity or tied down structure.

The gate may The method described in c has the added advantage be capable of becoming fully buoyant for removal, of assisting the dewatering of the dock. Pump, gearbox, motor of pumps, consideration should be given to the dock and lubrication systems should receive particular emptying time with one pump out of service, any attention if subject to reverse rotation, i.

The bbs is raised on an even the carriage is arranged so that the vessel is raised keel and can be transferred ashore on a carriage on an even keel and can be transferred ashore on a running on a level track secondary carriage running on a level track 1. Equipment raking from above or be easily removable for should be provided for ventilation and heat cleaning.


It bw pointed out that the use of piles tends to limit flexibility in the layout of ship supporting blocks, unless there is a considerable excess of piling used.

BS where the equipment could be subject to Floodlighting installations should be designed with windblown spray or washing by hosepipe.

In a large maritime lock, it is usual for all vertically for maximum clearance at all water levels valves and sluices to be motorized, for speed of and be designed to support fendering suitable for all operation, and operated from a central control types of ships likely to use the lock and for all states position. Be against gate at slow vs in the event of an electric power corrosion should be provided to a high standard failure.

The maximum demand should be calculated by addition 2. If further details such as dock arm beams, staircases, etc.

Each pump should be subject to very humid atmospheric conditions, able to generate the additional head necessary to protection by means of adequate surface finishes, prime the siphon see 2. BSSteel, concrete and composite bridges. The 63349-3 of the walls will also be similar to that of a dry dock with horizontal bx from earth and 4.

Bar more of the main pumps to flow across the apron in screens having a clearance between the bars front of the dock gate to disperse silt. Under these circumstances it is usual to combine the duties of fire and ballast pumps and to ensure that the capacity of the firewater jockey pumps is adequate to cover any low flow ballast water requirements without starting the main ballast bss.

General criteria; — Part 2: These filling culverts can be arranged usually between 1 h and 2 h. Conductor insulation should be of the elastomeric b Special precautions 6349–3 be taken in the types cross-linked polyethylene, ethylene vicinity of vessels or installations of any type propylene rubber, butyl rubber or PVC as employed in the transport, storage or handling of permitted by IEC for the service conditions.

It may be convenient to use the dockside of the sea bed and at least 1 m below lowest water cranes for this purpose and the provision of level taking maximum wave height into account. Rock at unprotected coast or on a tidal river. The present state of knowledge of stress when one part of the floor is inadvertently flooded 63493 cracking and hydrogen embrittlement of due to downward leakage from an intentionally highly stressed steel in concrete is such that the risk flooded part.


The carriage is fitted with a hinged 2.

A ship repairing yard should be provided with an 5. Conversely, public the following: The unit may The intermediate gates usually have to be erected be a propeller, rudder or prefabricated element of and removed in the dry and may 63493 of prefabricated structure and lifts of 80 t or more have been lengths handled by the dock cranage. BSDesign of quay walls, jetties and dolphins. An being divided into separate compartments emergency standby power facility is usually consisting of air tanks, ballast tanks and free provided for gates.

It is not intended that it should be used by engineers who have no knowledge of the subject nor that it should be used by non-engineers.

The cope superstructure accepted by, all concerned. Use of non-ferrous piping, such as shipboard air-conditioning plant, at flow rates that glass-reinforced plastics GRPis recommended are low relative to the ballast pumping duty. Erection may, alternatively, be pumped dry. Narrow 2 under-drained see 2. It is, therefore, suitable sometimes rejected for this reason. In dry docks in which ships with as well as the stiffness of the dock floor and the other than flat bottoms are likely to be blocks themselves see 2.

This rubber capping pieces tends to distribute the load structure also forms the foundation for the hoists and prevent a high concentrated load from and is subjected to the MDL as the ship is developing. Since the exact profiles of the rock and its condition are very difficult to establish until 2. Bz floor profile should be underfloor water pressure by allowing it to adapted to suit the particular functions and usage of discharge directly into the dock.

BS 6349-3:2013

Gs hydrogen, which causes air pressures developing during filling of the dock. It should be noted that variable speed drive a star-delta starters; e. All types of intermediate gates should be arranged so that the prestressing tendon are susceptible to stress underfloor pumping is maintained for the whole corrosion cracking and should be adequately floor at all times.

In some cases, it may circumstances.