Research on coupled thermo-hydro-mechanical dynamic response characteristics of saturated porous deep-sea sediments under vibration of mining vehicle

作     者：Wei ZHU Xinyu SHI Rong HUANG Liyue HUANG Wenbo MA Wei ZHU;Xinyu SHI;Rong HUANG;Liyue HUANG;Wenbo MA

作者机构：Post-doctoral Research Station of StatisticsSchool of Mathematics and Computational ScienceXiangtan UniversityXiangtan 411105Hunan ProvinceChina School of Mathematics and Computational ScienceXiangtan UniversityXiangtan 411105Hunan ProvinceChina School of Mathematic and Computational ScienceHunan University of Science and TechnologyXiangtan 411201Hunan ProvinceChina College of Civil Engineering and MechanicsXiangtan UniversityXiangtan 411105Hunan ProvinceChina 

出 版 物：《Applied Mathematics and Mechanics(English Edition)》 (应用数学和力学（英文版）)

年 卷 期：2021年第42卷第9期

页      面：1349-1362页

核心收录：

学科分类：08[工学] 080101[工学-一般力学与力学基础] 0801[工学-力学（可授工学、理学学位）] 

基　　金：the National Natural Science Foundation of China(No.12072309) the Youth Fund Foundation of Education Bureau of Hunan Province of China(No.19B546) the High-Level Talent Gathering Project in Hunan Province of China(No.2019RS1059) 

主　　题：deep-sea sediment thermo-hydro-mechanical dynamic generalized thermoelastic theory normal mode analysis dynamic response characteristic 

摘      要：The excessive deformation of deep-sea sediments caused by the vibration of the mining machine will adversely affect the efficiency and safety of *** with the deep-sea environment,the coupled thermo-hydro-mechanical problem for saturated porous deep-sea sediments subject to the vibration of the mining vehicle is *** on the Green-Lindsay(G-L)generalized thermoelastic theory and Darcy’s law,the model of thermo-hydro-mechanical dynamic responses for saturated porous deep-sea sediments under the vibration of the mining vehicle is *** obtain the analytical solutions of non-dimensional vertical displacement,excess pore water pressure,vertical stress,temperature,and change in the volume fraction field with the normal mode analysis method,and depict them *** normal mode analysis method uses the canonical coordinate transformation to solve the equation,which can quickly decouple the equation by ignoring the modal coupling effect on the basis of the canonical *** results indicate that the vibration frequency has obvious influence on the vertical displacement,excess pore water pressure,vertical stress,and change in volume fraction *** loading amplitude has a great effect on the physical quantities in the foundation,and the changes of the physical quantities increase with the increase in loading amplitude.