Application of GPS in Qinhuangdao Phase V Coal Terminal Project

The project of Qinhuangdao Phase V Coal Terminal is working on the sea,and it is difficult to control measurement on land.Combination of GPS surveying system and traditional construction technology improves accuracy of surveying positioning efficiency of constructing and satisfies requirements of engineering.Especially,application of GPS in leveling of rubble bed placing of caisson is worthy of popularizing in similar projects.