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Study of ground subsidence monitoring based on precise point positioning
Pages: 77-81
Year: Issue:  9
Journal: Geotechnical Investigation & Surveying

Keyword:  precise point positioningground subsidence monitoringcontinuously operation reference station;
Abstract: GPS technology has been developed into a major ground subsidence monitoring method.This paper studies ground subsidence monitoring based on precise point positioning through processing GPS data of Tianjin 12 CORS stations from 2006 to 2009.The results show that the positioning accuracy of precise point positioning is almost similar to that of relative positioning method,and the ground subsidence rates obtained by GPS precise point positioning coincides with traditional precise leveling.Therefore,the use of precise point positioning technology for large-scale ground subsidence monitoring is feasible and reliable.
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