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OCEN 474 Chpt. 1 & 2

Port planning & Marine Structures

TermDefinition
Port Development The creation of a new port, or the expansion of an existing port Design aspects: - Breakwater & quay layout - Port entrance channels - Maneuvering areas - Dredging requirements
Port Planning - National Level - Trade flow - Foreign trade (export/import) - Goods in transit - Transshipment; origin + destination are outside country
Loading/Unloading - Lift on - Lift off (Lo-Lo) - Roll on - Roll off (Ro-Ro)
Port Terminal Categories - General cargo (containers or bulk) - Container (containers only) - Multipurpose - Ro-Ro - Break-bulk cargo (bulk only; packaged but non-containerized) - Specialized - Unit loads (palettes, containers, packaged lumber)
Individual port planning - Master plan Allocates land within the port for various uses, describes projects needed for implementation, and scheme for phase development Planning should consider social, economic, and environmental constraints, and should fit within municipality plans
Individual port planning - Long term - Role of the port - Port responsibility for port & land words - Land use in the area and potential for expansion - Financing policy for port development
Individual port planning - Medium term - Analysis of port function and capacity - Design with budgets - Operational design with budget - Financial study
Panamax First: L - 135 m, T < 9 m, TEU = 900 Sixth (current): L - 397 m, T - 15.5 m, TEU - 11,000-14,500
Panama Canal - Accommodates submarines - Cannot accommodate aircraft carriers - Freshwater; provides drinking water for Panama City - Gatun Lake monitored for salinity as a result - ~50 mil. gallons of freshwater lost each time a ship goes through
Layout of Multipurpose Port Slide 1 (?)
Inner Port/Harbor Layout - Layout should ensure the dock shape provides best use of basin & easy maneuvering/function of dock equipment & machinery. - WATER CIRCULATION IS IMPORTANT TO AVOID STAGNATION. - Connection of rails, roads, and waterways are also important
Dock spec. Strip of land is best at 100-200 m wide
Quay spec. Quay length (b) = {vessel length (L) + 30 m; L + 40 m; 1.2L} - Choose most conservative for ease of maneuvering but staying in space constraint. h = T_max + 1 m
Ro-Ro Quay spec. b = {1.2b, 1.5b} h = T_max + 1 m
Double-vessel berth/quay spec. w = 2B + 30 m >= 3.5 B; B = largest vessel beam
Quadruple vessel berth/quay spec. w = 2B + 35 m >= 4 B; B = largest vessel beam
Double-vessel parallel dock spec. b = L_1 + L_2 + 60 m; also can be the space between two berths?
Vessel calls - Measure of port throughput: Amount of ships per port or per berth/quay - Divided into four categories based on ICST codes; excludes passenger vessels
Floating docks/fingers - Full/hollow, constructed of expanded polystyrene, fiberglass, plain concrete - Anchored w/ gravity anchors & chains or by vertical piles that prevent horizontal movement
Marina Services - Fresh water - Power - Telephone/wifi - Waste disposal/sewerage - Storage lockers - Fuel - Cleats/fenders - Lifting/launching - Repairs - Sanitation - Parking - Security - Dry storage
Fishing port characteristics - Washing & sorting - Exhibit & sale - Weighing & arrangement - Freezer storage - Packaging plant - Access corridor
Container handling equipment - Tractor-trailer - Straddle carrier; direct - Straddle carrier; relay - Yard gantry cranes - Front end loaders - Combination
Mooring loads Current, wind STATE ASSUMPTIONS ABOUT SHIP SHAPE (cylindrical vs. conventional bow) AND ABOUT SIGN CONVENTION
Wind loads If necessary, adjust: From land to water For time period (?) For height of measurement Then find: - Cxw + surge force (longitudinal, Fxw) - Cyw + sway force (lateral, Fyw) - Cxyw +yaw moment (Mxyw) Note: don't adjust for angle, eq.'s do it
Current loads - Find WD/T - Adjust for depth of measurement (s = % of draft down from SWL, not up from keel). Even if s = 0 Note: don't adjust for angle, equations do it for you
Created by: rorysunderland
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