Dock Wall and Dry Dock:
Figure gives the diagram of a dock wall.
Figure: Mass Concrete Dock Wall
Figure 9 gives the details of a dry dock. The entrance gate is opened and the water level in the dry dock is made equal to the level in the dock basin. The ship enters the dry dock and is made to settle on keel blocks provided in the dock floor. The water is then pumped out and the ship is made to sit in a proper position by stays. After repairs, the reverse operations are done and the ship moves out.
Figure: Plan of Dry Dock