Six-Degree-of-Freedom Measurement of Plate Anchors in Centrifuge by Magnetometers  

作　　者：SHU Shuang CHEN Chuan CHEN Hao-ran LAI Ying 

机构地区：[1]Key Laboratory of the Ministry of Education for Geomechanics and Embankment Engineering,College of Civil and Transportation Engineering,Hohai University,Nanjing 210098,China [2]MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering,College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China

出　　处：《China Ocean Engineering》2022年第6期871-879,共9页中国海洋工程（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.51890912).

摘　　要：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 magnetometer 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.

关 键 词：MAGNETOMETER offshore plate anchors centrifuge testing trajectory orientation 

分 类 号：TU476[建筑科学—结构工程] P752[建筑科学—土工工程]