Open AccessApplication of GNSS displacement monitoring system in measurement of open sea structure
Author(s) -
Yongyong Cao,
Yong Liang Guan,
Cheng Chao Li,
Heyin Hou
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/304/2/022064
Subject(s) - gnss applications , displacement (psychology) , precise point positioning , geodesy , submarine pipeline , marine engineering , breakwater , geology , stage (stratigraphy) , engineering , satellite , geotechnical engineering , aerospace engineering , psychology , paleontology , psychotherapist
With the development of deep water port and marine engineering, more and more marine structures are located in open sea area. The measurement development of open sea area structure is restricted by abominable marine environment, no control point and difficult data transmission. Combined with the deep water offshore bucket-based breakwater, the displacement measurement technology of open sea structure is studied. The global navigation satellite system (GNSS) is built to realize real-time monitoring of bucket structure displacement. Different monitoring schemes are formulated based on the characteristics and precision of the structure in the sea conveyance floating stage, installation stage or operation stage. It is found that displacement in the structure along the axis of the breakwater is less than that perpendicular to the axis by monitoring data, and the displacement laws of horizontal displacement and settlement in each stage of the structure are obtained. It has very important guiding significance for the structure construction and post-construction stability control in open sea area.