Dry docking involves the maintenance and repair of a ship’s hull, propeller, rudder, and other parts submerged in water, which are generally inaccessible while the ship is sailing. This process is essential for regulatory compliance, preventive maintenance, and ensuring the vessel’s operational efficiency.
Different types of dry docks are utilized based on the vessel’s size, condition, and repair requirements:
Graving Dock: A fixed rectangular dock made of concrete or steel, located on land near coastal waters. The ship is positioned on blocks inside the dock, and water is drained out to expose the submerged areas.
Floating Dock: A U-shaped structure that can submerge partially to allow a vessel to enter. Once the ship is positioned, water is pumped out to lift the dock and expose the ship’s underwater parts.
Marine Rail Dock: Uses rails to move smaller vessels out of the water for maintenance.
Shiplifts: Platforms that lift vessels vertically out of the water for repairs.
Marine Mobile Lifts: Designed for small vessels like yachts and tugs; they can transport ships over land.
Efficient dry-docking operations require seamless coordination and logistical planning. Key steps include:
This streamlined approach ensures timely repairs and minimizes disruptions during dry-docking operations.
