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

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

作者机构：Key Laboratory of the Ministry of Education for Geomechanics and Embankment EngineeringCollege of Civil and Transportation EngineeringHohai UniversityNanjing 210098China MOE Key Laboratory of Soft Soils and Geoenvironmental EngineeringCollege of Civil Engineering and ArchitectureZhejiang UniversityHangzhou 310058China 

出 版 物：《China Ocean Engineering》 (中国海洋工程（英文版）)

年 卷 期：2022年第36卷第6期

页      面：871-879页

核心收录：

学科分类：0820[工学-石油与天然气工程] 08[工学] 081401[工学-岩土工程] 0818[工学-地质资源与地质工程] 0903[农学-农业资源与环境] 0814[工学-土木工程] 

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

主　　题：magnetometer offshore plate anchors centrifuge testing trajectory orientation 

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.