桩基-流体饱和土体耦合系统的动态响应分析

朱媛媛; 胡育佳; 仲政; 程昌钧

doi:10.6052/j.issn.1000-4750.2014.08.0694

桩基-流体饱和土体耦合系统的动态响应分析

1.
上海师范大学计算机科学与技术系, 上海 200234;
2.
上海理工大学机械工程学院, 上海 200093;
3.
同济大学航空航天与力学学院, 上海 200092;
4.
上海大学力学系, 上海 200444

基金项目: 国家自然科学基金重点项目(11232009);上海市自然科学基金项目(15ZR1431600)

详细信息

作者简介:
胡育佳(1979-),男,江西人,副教授,博士,主要从事结构多场耦合分析研究(E-mail:huyujia@126.com);仲政(1964-),男,福建人,教授,博士,博导,主要从事工程力学研究(E-mail:zhongk@tongji.edu.cn);程昌钧(1937-),女,重庆人,教授,学士,博导,主要从事固体力学研究(E-mail:chjcheng@mail.shu.edu.cn).

通讯作者:
朱媛媛(1971-),女,上海人,副教授,博士,主要从事结构的非线性理论、方法和应用研究(E-mail:yuanyuan_zhu@hotmail.com).

中图分类号: TU435
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出版历程
- 收稿日期: 2014-08-10
- 修回日期: 2015-03-15
- 刊出日期: 2016-03-24

DYNAMIC RESPONSE OF A PILE-FLUID-SATURATED-SOIL COUPLED SYSTEM

1.
Department of Computer Science and Technology, Shanghai Normal University, Shanghai 200234, China;
2.
College of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;
3.
School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China;
4.
Department of Mechanics, Shanghai University, Shanghai 200072, China

摘要

摘要: 该文研究了空间轴对称桩基-流体饱和土体耦合系统的动态响应。首先,基于弹性力学和多孔介质理论给出了耦合系统的控制微分方程、边界条件和桩-土之间界面上的连接条件;其次,发展了微分求积单元法;在此基础上采用所发展的方法和2阶向后差分格式在空间和时间域内离散了控制微分方程;最后,利用Newton-Raphson迭代方法在初始条件下求得了系统的数值解,分析了耦合系统的动态响应,考察了参数的影响,也验证了数值方法的有效性。
- 空间轴对称桩基-流体饱和土体耦合系统 /
- 多孔介质理论(PMT) /
- 微分求积单元法(DQEM) /
- 代数-微分方程 /
- 动态响应
Abstract: The dynamic response of a space-axisymmetrical pile-fluid-saturated soil coupled system is studied. Firstly, based on the theory of elasticity and the Porous Media theory, the governing differential equations for the coupled system are presented. Then, the differential quadrature element method is developed. After that, the developed differential quadrature element method and the second-order backward difference scheme are applied to discretize the governing differential equations of the coupled system on spatial and temporal domains, respectively. Finally, the Newton-Raphson iteration method is used to derive the numerical solutions of the system with initial conditions, the dynamic response of the system and the effect of parameters are studied, and the validity of the analysis method is verified.

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参考文献(20)

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[16]	张琼, 杜永峰, 朱前坤. 基于微分求积法的Euler-Bernoulli梁的大变形力学行为研究[J]. 工程力学, 2014, 31(增刊1):1-4, 10. Zhang Qiong, Du Yongfeng, Zhu Qiankun. Study on large deformation mechanical behavior of Euler-Bernoulli beam using DQM[J]. Engineering Mechanics, 2014, 31(Suppl 1):1-4, 10.(in Chinese)
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文章访问数: 365
HTML全文浏览量: 30
PDF下载量: 188
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桩基-流体饱和土体耦合系统的动态响应分析

通讯作者: 朱媛媛(1971-),女,上海人,副教授,博士,主要从事结构的非线性理论、方法和应用研究(E-mail:yuanyuan_zhu@hotmail.com).

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DYNAMIC RESPONSE OF A PILE-FLUID-SATURATED-SOIL COUPLED SYSTEM

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目录

通讯作者:
朱媛媛(1971-),女,上海人,副教授,博士,主要从事结构的非线性理论、方法和应用研究(E-mail:yuanyuan_zhu@hotmail.com).