摘要
将饱水软土地基视为两相介质 ,考虑水的渗流和土骨架变形的耦合作用 ,用Fourier展开和Hankel积分变换分析三维非轴对称饱和弹性土层波动方程 ,用刚度矩阵方法 ,建立了层状饱水软土地基三维非轴对称动力响应的解析分析方法。以数值算例对比分析了单相土介质与两相饱和土介质三维非轴对称稳态动力响应 ,结果表明 :在饱水软土地基动力响应分析中应该考虑土体中孔隙流体的影响。
The soil was treated as a two phase mixture and the interactive influence of fluid flow and solid deformation was considered. Theoretical procedures were discussed for the dynamic analysis of fluid saturated soils. By means of integral transform, dynamic equations of the 3 D non axisymmetric layered saturated soil are solved. Based on these fundamental solutions, a stiffness matrix of layered saturated soil is derived exactly. A comparative analysis for stable response of dry soil and saturated soil is performed. The results indicate the necessity for considering the fluid in analysis.
出处
《地震工程与工程振动》
CSCD
北大核心
2002年第4期47-52,共6页
Earthquake Engineering and Engineering Dynamics
基金
国家自然科学基金资助项目 (5 99780 3 8)
国土资源部岩土工程开放研究实验室资助项目 (KF0 16)
