欢迎光临《计算力学学报》官方网站!
熊春宝,郭颖,刁钰,李志.荷载作用下多孔饱和地基的热-水-力耦合动力响应分析
Coupled thermo-hydro-mechanical dynamic response of saturated porous foundation under normal load[J].计算力学学报,2018,35(6):795~801
荷载作用下多孔饱和地基的热-水-力耦合动力响应分析
Coupled thermo-hydro-mechanical dynamic response of saturated porous foundation under normal load
Coupled thermo-hydro-mechanical dynamic response of saturated porous foundation under normal load
投稿时间:2017-09-05  修订日期:2017-11-20
DOI:10.7511/jslx20170905003
中文关键词:  广义热弹性理论  热松弛时间  热-水-力耦合模型  热弹性耦合模型  多孔弹性体  正则模态法
英文关键词:generalized thermoelastic theory  relaxation time  coupled thermo-hydro-mechanical dynamic  thermo-elastic dynamic  poroelastic  normal mode analysis
基金项目:
作者单位E-mail
熊春宝 天津大学 建筑工程学院, 天津 300072  
郭颖 天津大学 建筑工程学院, 天津 300072 gytha_ying@tju.edu.cn 
刁钰 天津大学 建筑工程学院, 天津 300072  
李志 天津大学 建筑工程学院, 天津 300072  
摘要点击次数: 35
全文下载次数: 41
中文摘要:
      基于广义热弹性理论,结合达西定律,对Biot波动方程进行修正,研究了一个受到荷载作用的多孔饱和地基的热-水-力多场耦合动态响应问题。建立了多孔饱和地基在荷载作用下的热-水-力耦合模型及控制方程,该模型可退化为热弹性耦合模型。采用正则模态法求解,得到了问题的解析解,讨论了热-水-力耦合模型和热弹性耦合模型的区别,分析了荷载频率变化对地基中各物理量的影响。最终给出了量纲的竖向位移、超孔隙水压力、竖向应力和温度等物理量的分布规律。
英文摘要:
      This work concerns the problems associated with a poroelastic half-space soil medium subject to a normal force within the context of generalized thermoelasticity with one relaxation time.By remaining faithful to Biot's theory of dynamic poroelasticity,the foundation material is idealized as a uniform,fully saturated,poroelastic half-space medium.The governing equations of thermo-hydro-mechanical dynamic model (THMD) is established,and this model can reduced into the thermo-elastic dynamic model (TMD).We then deduce the general solutions of non-dimensional vertical displacement,excess pore water pressure,vertical stress,and temperature distribution using normal mode analysis and depict them graphically.Throughout this paper,we discuss the differences between THMD and TMD.
查看全文  查看/发表评论  下载PDF阅读器
您是第4410495位访问者
版权所有:《计算力学学报》编辑部
本系统由 北京勤云科技发展有限公司设计