Discussion on the application of GPS using in Marine construction survey

The application of GPS technology using in Marine construction survey was discussed in this paper. The artificial island project in Nantong Yangkou was taken as example in this paper, had introduced the major tasks of positioning in mattresses laying under the water, the specific processes and the problems and solutions to problems which should be paid attention to in the course of job, and introduced about some methods of using GPS in the hull dolosse installment localization and the seabed, the island wall monitoring in detail. And some useful experiences were got about application of GPS technology in Marine construction survey.