CHAPTER ONE

INTRODUCTION

1.1   Background of the Study

        The construction of dry dock needs to design of the detail and thorough planning, including gate/door design. What distinguishes from other types of the dock is the door that can move freely. The door would close to separate the pool by the beach. After the ship goes into the dock, then the gate/door will be closed by withdrawal. Once the door is closed then the water inside the pond will be pumped out so that the pond dries. Water pressure from the beach will press the door/gate so it locks. After the pond dries up, it can be done work on the ship. Upon completion of the work, the pool will be filled with water again which causes the water pressure from the pool and the beach to be balanced. The balanced water pressure between the pool and the beach will release the lock so that the door/gate can move freely. The door can be pulled so that the open dock allows the ship to exit (Hanley et al; 2016).

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5. 5. Direct citing (if referenced properly)
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