The six-degree-of-freedom movement of an offshore plate anchor is essential to evaluate anchor performance.As an emerging technology,magnetometer has shown its potential in measuring the six-degree-of-freedom movement of offshore anchors under 1-g model laboratory tests.The paper presents the feasibility of adopting a magnetometer system in geotechnical centrifuge testing.Interference factors that may affect the measuring accuracy of the magne-tometer system are investigated.The results demonstrate that the magnetometer system can accurately catch the anchor movement in the soils with the restrictions of:(1)the model anchor was made with stainless steel;(2)the system was placed at least 30 cm away from the side wall of soil model tank;(3)started the measurement when the artificial acceleration by centrifuge was stable.

SHU Shuang;CHEN Chuan;CHEN Hao-ran;LAI Ying

Key Laboratory of the Ministry of Education for Geomechanics and Embankment Engineering,College of Civil and Transportation Engineering,Hohai University,Nanjing 210098,China;MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering,College of Civil Engineering and Architec-ture,Zhejiang University,Hangzhou 310058,China

中国海洋工程（英文版）

[1]SHU Shuang;CHEN Chuan;CHEN Hao-ran;LAI Ying-.Six-Degree-of-Freedom Measurement of Plate Anchors in Centrifuge by Magnetometers)[J].中国海洋工程（英文版）,2022(06):871-879

Magnetometers

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