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移动荷载作用下层状饱和地基土上无限板的动力响应
  • 期刊名称：岩石力学与工程学报，2007，(S2): 4270-4275
  • 时间：0
  • 分类：TU435[建筑科学—岩土工程;建筑科学—土工工程]
  • 作者机构：[1]上海交通大学土木工程系, [2]江苏大学土木工程系, [3]南昌工程学院土木工程系, [4]上海200030南昌工程学院土木工程系
  • 相关基金：国家自然科学基金资助项目(50578071)
  • 相关项目：饱和土中移动载荷问题的边界元方法和积分方程方法
关键词： 土力学, 移动荷载, 无限板, 饱和土, 层状地基, TRM方法, FOURIER变换
中文摘要：

利用Biot波动理论、无限大板的弹性理论和TRM方法研究移动荷载作用下层状饱和土地基上覆弹性板的动力响应问题。首先引入两类势函数解耦Biot波动方程。由所引入势函数及二维Fourier变换,得出土体位移、应力及孔压在变换域内的通解。再根据无限大板的弹性理论和传递、透射矩阵(TRM)方法求解变换域内层状土各层的波动系数及板的内力表达式。最后利用IFFT算法得出时间空间域内的解析解。通过具体算例,分析荷载移动速度、土层剪切模量对板内力、土体的动力响应的影响。

同期刊论文项目
饱和土中移动载荷问题的边界元方法和积分方程方法
期刊论文 27 会议论文 1
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