西安公路交通大学学报
Journal of Xi'an Highway University
2001 Vol.21 No.1 P.6-8,48


三维非轴对称饱和土动力刚度矩阵

张玉红  黄义 

摘 要:基于三维非轴对称饱和弹性土层动力响应分析的基本解,推导出有限厚饱和土层和饱和半空间精确动力刚度矩阵,再由层间内界面连续条件建立三维非轴对称分层饱和土体总刚方程。该方法不要求对土体自然层(有限厚度)作薄层离散,也可方便处理层内荷载的影响;总刚方程可直接用于计算边界元法中边界积分方程要求的影响函数(GREEN函数)。
关键词:饱和土;非轴对称;动力响应;刚度矩阵
分类号:TU441.5 文献标识码:A

文章编号:1007-4112(2001)01-0006-03

The Dynamic Stiffness Matrix of the 3-D Non-axisymmetric Saturated Soils

ZHANG Yu-hongDepartment of Civil Engineering, Foshan University, Foshan 528000, China) 
HUANG YiXian University of Architecture and Technology, Xian 710055, China) 

AbstractBased on the fundamental solutions of governing dynamic equations of the 3-D non-axisymmetric saturated soils,a layered saturated stiffness matrix and a saturated half-space stiffness matrix are derived exactly.The global stiffness equation of a multi-layered half-space is assembled by using the layer and half space stiffness matrices on the basis of continuity of traction s and fluid flow at layer interfaces,which would not need to disperse the natural layered soils (finite thickness),and it is easy to deal with in-layer loading in global stiffness equation,and the GREEN's functions needed by boundary integral equation in boundary element method can be obtained directly by means of global stiffness equation.
Keywords
saturated soils;non-axisymmetric;dynamic response;stif fness matrix

基金项目:国家自然科学基金资助项目(59678003)
作者简介:张玉红(1963-),女,河南荥阳人,佛山大学副教授,博士
作者单位:张玉红(佛山大学 土建系,广东 佛山 528000) 
     黄义(西安建筑科技大学,陕西 西安 710055) 

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收稿日期:2000年5月8日

出版日期:2001年1月1日